/* roulang page: index */
:root {
            --dark-base: #17171C;
            --dark-card: #1E1E28;
            --dark-border: #2F2F38;
            --dark-text: #EDEDF2;
            --dark-muted: #A3A3AD;
            --light-panel: #F7F6F2;
            --light-card: #FFFFFF;
            --light-border: #E4E3DE;
            --light-text: #1E1E24;
            --light-muted: #6B6B72;
            --brand-orange: #FF6B35;
            --brand-gold: #FFB800;
            --brand-green: #00C896;
            --brand-mint: #7CD6B5;
            --danger: #FF4D4F;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 10px;
            --radius-pill: 999px;
            --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
            --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
            --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
            --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
            --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
            --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
            --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
            --container-max: 1240px;
            --section-pad-desktop: 96px;
            --section-pad-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background-color: var(--light-panel);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease;
        }

        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            border-radius: var(--radius-xs);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
        }

        .container-full {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-full {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--dark-base);
            transition: all 0.3s ease;
        }

        .site-header.scrolled .brand-row {
            height: 56px;
        }

        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height 0.3s ease;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .brand-row {
                padding: 0 16px;
                height: 64px;
            }
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-graphic {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            position: relative;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-graphic::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.9);
            opacity: 0.85;
        }

        .logo-graphic::after {
            content: '';
            position: absolute;
            bottom: 7px;
            right: 7px;
            width: 16px;
            height: 10px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 0.8;
        }

        .logo-text {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
            line-height: 1.2;
        }

        @media (max-width: 640px) {
            .logo-text {
                font-size: 19px;
            }
            .logo-graphic {
                width: 34px;
                height: 34px;
            }
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 700;
            font-family: var(--font-title);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            transition: filter 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            line-height: 1.2;
            min-height: 44px;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            color: #FFFFFF;
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
        }

        .nav-cta-btn:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }

        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 48px;
            height: 48px;
            background: transparent;
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            padding: 12px 10px;
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }

        .hamburger-btn:hover {
            background-color: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .hamburger-btn .bar {
            display: block;
            width: 100%;
            height: 2px;
            background-color: #EDEDF2;
            border-radius: 4px;
            transition: transform 0.28s ease, opacity 0.2s ease;
        }

        .hamburger-btn.open .bar:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger-btn.open .bar:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger-btn.open .bar:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 768px) {
            .hamburger-btn {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
        }

        /* 频道行 */
        .channel-row {
            height: 50px;
            background-color: rgba(255, 255, 255, 0.04);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        @media (max-width: 768px) {
            .channel-row {
                padding: 0 16px;
                height: 48px;
            }
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            font-family: var(--font-title);
            white-space: nowrap;
            line-height: 1.2;
            min-height: 36px;
            transition: all 0.25s ease;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: #C8C8D0;
            cursor: pointer;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .channel-tag:last-child {
            margin-right: 0;
        }

        .channel-tag:hover {
            background: var(--brand-gradient);
            color: #FFFFFF;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
        }

        .channel-tag.active {
            background: var(--brand-gradient);
            color: #FFFFFF;
            border-color: transparent;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.28);
        }

        /* ===== 通用 Section 样式 ===== */
        .section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
        }

        .section-dark {
            background-color: var(--dark-base);
            color: var(--dark-text);
        }

        .section-light {
            background-color: var(--light-panel);
            color: var(--light-text);
        }

        .section-white {
            background-color: #FFFFFF;
            color: var(--light-text);
        }

        .section-title {
            font-family: var(--font-title);
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: inherit;
            margin: 0 0 12px 0;
            letter-spacing: -0.01em;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 26px;
            }
        }

        .section-subtitle {
            font-size: 16px;
            line-height: 1.7;
            color: inherit;
            opacity: 0.75;
            margin: 0 0 36px 0;
            max-width: 640px;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header-flex {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-orange);
            transition: color 0.2s ease, gap 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .text-link:hover {
            color: #E55A2B;
            gap: 10px;
        }

        .text-link svg {
            transition: transform 0.2s ease;
        }

        .text-link:hover svg {
            transform: translateX(4px);
        }

        /* ===== 数据徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            height: 26px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-title);
            line-height: 1;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .badge-gradient {
            background: var(--brand-gradient);
            color: #FFFFFF;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
        }

        .badge-dark-outline {
            background-color: #2A2A32;
            color: #F0F0F4;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .badge-light-outline {
            background-color: #FFFFFF;
            color: #1E1E24;
            border: 1px solid #DAD9D4;
        }

        .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }

        .badge-dot.orange {
            background: var(--brand-orange);
        }
        .badge-dot.green {
            background: var(--brand-green);
        }
        .badge-dot.gold {
            background: var(--brand-gold);
        }

        /* ===== Hero 区 ===== */
        .hero-section {
            background-color: var(--dark-base);
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
            position: relative;
            overflow: hidden;
            padding-top: 64px;
            padding-bottom: 72px;
            min-height: 540px;
            display: flex;
            align-items: center;
            color: var(--dark-text);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, rgba(255, 184, 0, 0.06) 50%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 150, 0.12) 0%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        @media (max-width: 768px) {
            .hero-inner {
                padding: 0 16px;
            }
            .hero-section {
                min-height: 480px;
                padding-top: 48px;
                padding-bottom: 56px;
            }
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        .hero-left .badge {
            margin-bottom: 18px;
        }

        .hero-title {
            font-family: var(--font-title);
            font-size: 48px;
            font-weight: 800;
            line-height: 1.18;
            color: #F8F7F2;
            margin: 0 0 18px 0;
            letter-spacing: -0.015em;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 32px;
                line-height: 1.25;
            }
        }

        .hero-subtitle {
            font-size: 16px;
            line-height: 1.8;
            color: var(--dark-muted);
            margin: 0 0 28px 0;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            font-family: var(--font-title);
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            transition: filter 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            line-height: 1.2;
            min-height: 48px;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            color: #FFFFFF;
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
        }

        .btn-primary:active {
            transform: translateY(1px);
            filter: brightness(0.92);
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #F0F0F4;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-title);
            padding: 13px 26px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease, color 0.2s ease;
            line-height: 1.2;
            min-height: 48px;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(1px);
            background: rgba(255, 255, 255, 0.04);
        }

        /* Hero 右侧：图标矩阵 + 状态条 + 小数据卡 */
        .hero-right-panel {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .icon-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .icon-tile {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
        }

        .icon-tile:hover {
            background-color: rgba(255, 255, 255, 0.09);
            border-color: rgba(255, 107, 53, 0.35);
            transform: translateY(-3px);
        }

        .icon-tile svg {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            stroke: var(--brand-gold);
            stroke-width: 1.5;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .icon-tile span {
            font-size: 13px;
            font-weight: 600;
            color: #D8D8E0;
            line-height: 1.3;
        }

        .status-bar {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .status-pulse {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--brand-green);
            animation: pulse-soft 2.2s ease-in-out infinite;
            flex-shrink: 0;
        }

        @keyframes pulse-soft {
            0%, 100% {
                box-shadow: 0 0 0 0 rgba(0, 200, 150, 0.45);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(0, 200, 150, 0);
            }
        }

        .status-bar span {
            font-size: 13px;
            font-weight: 500;
            color: #B8B8C2;
            line-height: 1.4;
        }

        .status-bar strong {
            color: #E8E8EE;
            font-weight: 600;
        }

        .hero-mini-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }

        .hero-mini-card {
            background-color: #1F1F28;
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            text-align: left;
            transition: border-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
        }

        .hero-mini-card:hover {
            border-color: rgba(255, 107, 53, 0.4);
            transform: translateY(-3px);
            box-shadow: var(--shadow-dark);
        }

        .hero-mini-card .label {
            font-size: 11px;
            font-weight: 600;
            color: var(--dark-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .hero-mini-card .value {
            font-family: var(--font-mono);
            font-size: 30px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        @media (max-width: 640px) {
            .hero-mini-cards {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-mini-card .value {
                font-size: 24px;
            }
        }

        .trend-up {
            color: var(--brand-green);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        .trend-down {
            color: var(--danger);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        /* ===== 指标看板区 ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 640px) {
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .metric-card {
            background-color: #1F1F28;
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            position: relative;
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            box-shadow: var(--shadow-dark);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-dark-hover);
            border-color: rgba(255, 255, 255, 0.18);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: var(--brand-gradient);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .metric-card:nth-child(2)::before {
            background: var(--green-gradient);
        }

        .metric-card:nth-child(3)::before {
            background: linear-gradient(135deg, #FFB800 0%, #FF8C42 100%);
        }

        .metric-card:nth-child(4)::before {
            background: linear-gradient(135deg, #00C896 0%, #00B8A9 100%);
        }

        .metric-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-muted);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }

        .metric-value {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1.1;
            letter-spacing: -0.03em;
            margin-bottom: 10px;
        }

        .metric-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
        }

        .metric-help {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.5;
        }

        /* ===== 服务矩阵区 ===== */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 28px;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .service-matrix-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .service-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            grid-template-rows: auto auto;
            gap: 18px;
        }

        @media (max-width: 640px) {
            .service-cards-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .service-card {
            background-color: #FFFFFF;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            box-shadow: var(--shadow-light);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-light-hover);
            border-color: rgba(255, 107, 53, 0.3);
        }

        .service-card-wide {
            grid-column: span 2;
        }

        @media (max-width: 640px) {
            .service-card-wide {
                grid-column: span 1;
            }
        }

        .service-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background-color: #EDEDE8;
            flex-shrink: 0;
        }

        .service-card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-title {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 12px 0;
            line-height: 1.35;
        }

        .service-card-list {
            list-style: none;
            margin: 0 0 16px 0;
            padding: 0;
        }

        .service-card-list li {
            display: flex;
            align-items: flex-start;
            gap: 9px;
            font-size: 14px;
            color: #4A4A52;
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .service-card-list li::before {
            content: '';
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border: 1.5px solid var(--brand-orange);
            border-radius: 2px;
            margin-top: 7px;
            display: inline-block;
        }

        .service-card-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease, color 0.2s ease;
        }

        .service-card-link:hover {
            color: #E55A2B;
            gap: 10px;
        }

        /* 精选面板 */
        .feature-panel {
            background-color: var(--dark-base);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .feature-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--green-gradient);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .feature-panel-title {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0 0 16px 0;
        }

        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .feature-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background-color: rgba(255, 255, 255, 0.08);
            color: #D0D0D8;
            border: 1px solid rgba(255, 255, 255, 0.12);
            line-height: 1.3;
            min-height: 28px;
        }

        .feature-data-row {
            display: flex;
            align-items: baseline;
            gap: 20px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .feature-data-item {
            display: flex;
            flex-direction: column;
        }

        .feature-data-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1.2;
        }

        .feature-data-label {
            font-size: 12px;
            color: var(--dark-muted);
            margin-top: 2px;
        }

        .btn-sm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            font-family: var(--font-title);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            transition: filter 0.25s ease, transform 0.2s ease;
            line-height: 1.2;
            min-height: 42px;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-sm:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        /* ===== 结果对比区 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            position: relative;
        }

        @media (max-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .compare-card {
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            box-shadow: var(--shadow-light);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .compare-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-light-hover);
        }

        .compare-card-light {
            background-color: #FFFFFF;
            border: 1px solid var(--light-border);
        }

        .compare-card-dark {
            background-color: var(--dark-base);
            border: 1px solid var(--dark-border);
            color: var(--dark-text);
        }

        .compare-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 22px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .compare-card-title {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            margin: 0;
        }

        .compare-bar-row {
            margin-bottom: 18px;
        }

        .compare-bar-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: inherit;
            opacity: 0.85;
        }

        .compare-bar-track {
            width: 100%;
            height: 8px;
            background-color: rgba(0, 0, 0, 0.08);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .compare-card-dark .compare-bar-track {
            background-color: rgba(255, 255, 255, 0.08);
        }

        .compare-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            transition: width 0.6s ease;
        }

        .compare-bar-fill.green {
            background: var(--green-gradient);
        }

        .compare-conclusion {
            font-size: 14px;
            line-height: 1.6;
            color: inherit;
            opacity: 0.8;
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid rgba(0, 0, 0, 0.08);
        }

        .compare-card-dark .compare-conclusion {
            border-top-color: rgba(255, 255, 255, 0.1);
        }

        .vs-badge {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-family: var(--font-title);
            font-size: 14px;
            font-weight: 800;
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            z-index: 10;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.45);
            letter-spacing: 0.1em;
        }

        @media (max-width: 768px) {
            .vs-badge {
                display: none;
            }
        }

        /* ===== FAQ 区 ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: #FFFFFF;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(255, 107, 53, 0.25);
        }

        .faq-item.active {
            border-left: 4px solid var(--brand-orange);
            box-shadow: var(--shadow-light-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            font-family: var(--font-title);
            color: var(--light-text);
            background: transparent;
            border: none;
            text-align: left;
            width: 100%;
            min-height: 48px;
            transition: background-color 0.2s ease;
        }

        .faq-question:hover {
            background-color: rgba(0, 0, 0, 0.02);
        }

        .faq-indicator {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: #F0EFEA;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease, background-color 0.3s ease;
            position: relative;
        }

        .faq-indicator::before {
            content: '';
            width: 12px;
            height: 2px;
            background-color: #55555E;
            border-radius: 2px;
            position: absolute;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }

        .faq-indicator::after {
            content: '';
            width: 2px;
            height: 12px;
            background-color: #55555E;
            border-radius: 2px;
            position: absolute;
            transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
        }

        .faq-item.active .faq-indicator {
            background: var(--brand-gradient);
        }

        .faq-item.active .faq-indicator::before {
            background-color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-item.active .faq-indicator::after {
            opacity: 0;
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.85;
            color: #4A4A52;
            margin: 0;
        }

        /* ===== 转化表单区 ===== */
        .cta-form-section {
            background-color: var(--dark-base);
            color: var(--dark-text);
        }

        .cta-form-card {
            background-color: #1F1F28;
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .cta-form-inner {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 0;
        }

        @media (max-width: 768px) {
            .cta-form-inner {
                grid-template-columns: 1fr;
            }
        }

        .cta-benefits {
            padding: 36px 32px;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 184, 0, 0.05) 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .cta-benefits h3 {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0 0 22px 0;
            line-height: 1.4;
        }

        .cta-benefit-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 18px;
        }

        .cta-benefit-item svg {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            stroke: var(--brand-green);
            stroke-width: 1.5;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
            margin-top: 2px;
        }

        .cta-benefit-item span {
            font-size: 15px;
            color: #D0D0D8;
            line-height: 1.6;
        }

        .cta-form-area {
            padding: 36px 32px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            color: #E8E8EE;
            margin-bottom: 7px;
            font-family: var(--font-title);
        }

        .form-input {
            width: 100%;
            height: 50px;
            padding: 0 16px;
            font-size: 15px;
            font-family: var(--font-body);
            color: #EDEDF2;
            background-color: #2A2A32;
            border: 1px solid #3A3A45;
            border-radius: var(--radius-xs);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .form-input:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18), 0 0 16px rgba(255, 107, 53, 0.08);
            outline: none;
        }

        .form-input::placeholder {
            color: #6B6B72;
        }

        .form-textarea {
            width: 100%;
            min-height: 90px;
            padding: 12px 16px;
            font-size: 15px;
            font-family: var(--font-body);
            color: #EDEDF2;
            background-color: #2A2A32;
            border: 1px solid #3A3A45;
            border-radius: var(--radius-xs);
            resize: vertical;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .form-textarea:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18), 0 0 16px rgba(255, 107, 53, 0.08);
            outline: none;
        }

        .form-textarea::placeholder {
            color: #6B6B72;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            font-family: var(--font-title);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            transition: filter 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            line-height: 1.2;
            min-height: 52px;
            border: none;
            cursor: pointer;
            letter-spacing: 0.02em;
        }

        .btn-submit:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            color: #FFFFFF;
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
        }

        .btn-submit:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }

        .form-privacy {
            font-size: 12px;
            color: #8A8A94;
            margin-top: 12px;
            line-height: 1.5;
        }

        /* ===== 精选分类区 ===== */
        .category-tiles {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        @media (max-width: 1024px) {
            .category-tiles {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 640px) {
            .category-tiles {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        .category-tile {
            background-color: #FFFFFF;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            box-shadow: var(--shadow-light);
            cursor: pointer;
            text-decoration: none;
            color: var(--light-text);
        }

        .category-tile:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-light-hover);
            border-color: rgba(255, 107, 53, 0.3);
            color: var(--light-text);
        }

        .category-tile-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 4px;
        }

        .category-tile-icon svg {
            width: 20px;
            height: 20px;
            stroke: var(--brand-orange);
            stroke-width: 1.5;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .category-tile-name {
            font-family: var(--font-title);
            font-size: 15px;
            font-weight: 700;
            color: var(--light-text);
            line-height: 1.3;
        }

        .category-tile-desc {
            font-size: 12px;
            color: var(--light-muted);
            line-height: 1.5;
        }

        /* ===== 热门专题区 ===== */
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            background-color: #FFFFFF;
            color: var(--light-text);
            border: 1px solid var(--light-border);
            cursor: pointer;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
            min-height: 40px;
        }

        .topic-tag:hover {
            background: var(--brand-gradient);
            color: #FFFFFF;
            border-color: transparent;
            transform: translateY(-2px);
        }

        /* ===== 资讯区 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 32px;
            align-items: start;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            flex-direction: column;
            padding: 18px 0;
            border-bottom: 1px solid var(--light-border);
            transition: background-color 0.2s ease;
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            background-color: rgba(0, 0, 0, 0.015);
        }

        .news-item-link {
            font-size: 16px;
            font-weight: 600;
            color: var(--light-text);
            line-height: 1.5;
            transition: color 0.2s ease;
            text-decoration: none;
        }

        .news-item-link:hover {
            color: var(--brand-orange);
        }

        .news-item-meta {
            font-size: 12px;
            color: var(--light-muted);
            margin-top: 5px;
        }

        .news-sidebar-card {
            background-color: #FFFFFF;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-light);
        }

        .news-sidebar-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            background-color: #EDEDE8;
        }

        .news-sidebar-body {
            padding: 20px;
        }

        .news-sidebar-title {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 8px 0;
        }

        .news-sidebar-desc {
            font-size: 13px;
            color: var(--light-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background-color: var(--dark-base);
            color: var(--dark-text);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-top: 56px;
            padding-bottom: 40px;
        }

        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-top: 40px;
                padding-bottom: 28px;
            }
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-text {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.02em;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--dark-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-col-title {
            font-family: var(--font-title);
            font-size: 14px;
            font-weight: 700;
            color: #E8E8EE;
            margin: 0 0 16px 0;
            letter-spacing: 0.04em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--dark-muted);
            transition: color 0.22s ease, padding-left 0.22s ease;
            text-decoration: none;
        }

        .footer-links a:hover {
            color: var(--brand-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            padding-bottom: 24px;
        }

        .footer-copyright {
            font-size: 12px;
            color: #6B6B72;
            line-height: 1.6;
        }

        /* ===== 响应式断点补全 ===== */
        @media (max-width: 1200px) {
            .hero-title {
                font-size: 42px;
            }
            .metric-value {
                font-size: 36px;
            }
        }

        @media (max-width: 640px) {
            .hero-title {
                font-size: 32px;
            }
            .hero-section {
                padding-top: 40px;
                padding-bottom: 44px;
                min-height: auto;
            }
            .category-tiles {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .icon-matrix {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .hero-mini-cards {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .section-title {
                font-size: 24px;
            }
            .cta-benefits {
                padding: 24px 20px;
            }
            .cta-form-area {
                padding: 24px 20px;
            }
            .compare-card {
                padding: 20px 18px;
            }
            .metric-value {
                font-size: 32px;
            }
            .channel-tag {
                font-size: 13px;
                padding: 6px 14px;
                min-height: 32px;
            }
        }

        @media (max-width: 480px) {
            .brand-row {
                height: 58px;
            }
            .logo-text {
                font-size: 17px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-mini-cards {
                grid-template-columns: 1fr;
            }
            .category-tiles {
                grid-template-columns: 1fr;
            }
            .service-card-img {
                height: 120px;
            }
        }

/* roulang page: category1 */
:root {
            --dark-base: #17171C;
            --dark-card: #1E1E28;
            --dark-border: #2F2F38;
            --dark-text: #EDEDF2;
            --dark-muted: #A3A3AD;
            --light-panel: #F7F6F2;
            --light-card: #FFFFFF;
            --light-border: #E4E3DE;
            --light-text: #1E1E24;
            --light-muted: #6B6B72;
            --brand-orange: #FF6B35;
            --brand-gold: #FFB800;
            --brand-green: #00C896;
            --brand-mint: #7CD6B5;
            --danger: #FF4D4F;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 10px;
            --radius-pill: 999px;
            --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
            --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
            --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
            --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
            --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
            --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
            --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
            --container-max: 1240px;
            --section-pad-desktop: 96px;
            --section-pad-mobile: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background-color: var(--light-panel);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, opacity 0.22s ease;
        }

        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            border-radius: var(--radius-xs);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
        }

        .container-full {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--dark-base);
            transition: all 0.3s ease;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
        }

        .site-header.scrolled .brand-row {
            height: 56px;
        }

        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height 0.3s ease;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-graphic {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            position: relative;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-graphic::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.9);
            opacity: 0.85;
        }

        .logo-graphic::after {
            content: '';
            position: absolute;
            bottom: 7px;
            right: 7px;
            width: 16px;
            height: 10px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 0.8;
        }

        .logo-text {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
            line-height: 1.2;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 20px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.01em;
            border: none;
            cursor: pointer;
            transition: all 0.22s ease;
            white-space: nowrap;
            min-width: 44px;
        }
        .btn-header:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }
        .btn-header:active {
            transform: translateY(1px);
            filter: brightness(0.95);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            cursor: pointer;
            position: relative;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #EDEDF2;
            border-radius: 2px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            transition: all 0.25s ease;
        }
        .hamburger span:nth-child(1) {
            top: 15px;
        }
        .hamburger span:nth-child(2) {
            bottom: 15px;
        }
        .hamburger.is-open span:nth-child(1) {
            top: 21px;
            transform: translateX(-50%) rotate(45deg);
        }
        .hamburger.is-open span:nth-child(2) {
            bottom: 21px;
            transform: translateX(-50%) rotate(-45deg);
        }

        .channel-row {
            height: 48px;
            background: #F7F6F2;
            border-bottom: 1px solid #E4E3DE;
            display: flex;
            align-items: center;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 8px;
            overflow-x: auto;
            overflow-y: hidden;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            height: 32px;
            padding: 0 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            border: 1px solid transparent;
            transition: all 0.22s ease;
            cursor: pointer;
            color: var(--light-text);
            background: transparent;
            min-height: 32px;
        }
        .channel-tag:hover {
            background: rgba(255, 107, 53, 0.08);
            border-color: rgba(255, 107, 53, 0.25);
            color: var(--brand-orange);
        }
        .channel-tag.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.28);
        }
        .channel-tag.active:hover {
            filter: brightness(1.05);
            color: #fff;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: #F7F6F2;
            border-bottom: 1px solid #E4E3DE;
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
            flex-wrap: wrap;
            margin: 0;
            list-style: none;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li a {
            color: var(--brand-orange);
            font-weight: 600;
            transition: color 0.22s ease;
        }
        .breadcrumb li a:hover {
            color: var(--brand-gold);
            text-decoration: underline;
        }
        .breadcrumb li.current {
            color: var(--light-text);
            font-weight: 600;
        }
        .breadcrumb-sep {
            color: #B0AFAA;
            font-size: 12px;
            user-select: none;
        }

        /* ===== Hero 矮版 ===== */
        .cat-hero {
            padding: 48px 0 40px;
            background: var(--light-panel);
            position: relative;
            overflow: hidden;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,53,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cat-hero-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .cat-hero-info h1 {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--light-text);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }
        .cat-hero-info .hero-sub {
            font-size: 16px;
            color: var(--light-muted);
            margin: 0 0 20px;
            line-height: 1.7;
            max-width: 560px;
        }
        .cat-hero-badge-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-light);
            display: flex;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .cat-hero-stat .stat-item {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }
        .cat-hero-stat .stat-value {
            font-family: var(--font-mono);
            font-size: 30px;
            font-weight: 800;
            color: var(--light-text);
            line-height: 1.2;
        }
        .cat-hero-stat .stat-label {
            font-size: 13px;
            color: var(--light-muted);
            font-weight: 500;
            line-height: 1.4;
        }
        .cat-hero-stat .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
            background: rgba(0, 200, 150, 0.1);
            color: var(--brand-green);
        }

        /* ===== 主内容区 ===== */
        .cat-main {
            padding: 40px 0 72px;
            background: var(--light-panel);
        }
        .cat-main .grid-x {
            gap: 28px;
        }
        .cat-list-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .list-card {
            background: var(--light-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--light-border);
            box-shadow: var(--shadow-light);
            overflow: hidden;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            display: grid;
            grid-template-columns: 200px 1fr;
            min-height: 160px;
        }
        .list-card:hover {
            box-shadow: var(--shadow-light-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 107, 53, 0.3);
        }
        .list-card-thumb {
            position: relative;
            overflow: hidden;
            min-height: 160px;
            background: #1E1E28;
        }
        .list-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
            transition: transform 0.4s ease;
        }
        .list-card:hover .list-card-thumb img {
            transform: scale(1.04);
        }
        .list-card-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(23,23,28,0.55) 100%);
            pointer-events: none;
        }
        .list-card-body {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 10px;
        }
        .list-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .list-card-title {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0;
            line-height: 1.4;
        }
        .list-card-summary {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--light-muted);
            flex-wrap: wrap;
        }
        .list-card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #C0BFBA;
            flex-shrink: 0;
        }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 26px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            line-height: 1;
        }
        .badge-solid {
            background: var(--brand-gradient);
            color: #fff;
            border: none;
        }
        .badge-dark-outline {
            background: #17171C;
            color: #EDEDF2;
            border: 1px solid #3A3A45;
        }
        .badge-light-outline {
            background: #FFFFFF;
            color: var(--light-text);
            border: 1px solid var(--light-border);
        }
        .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
            display: inline-block;
        }
        .badge-dot.green {
            background: var(--brand-green);
        }
        .badge-dot.orange {
            background: var(--brand-orange);
        }
        .badge-dot.gold {
            background: var(--brand-gold);
        }

        /* ===== 侧栏 ===== */
        .sidebar-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--dark-base);
            border-radius: var(--radius-lg);
            border: 1px solid var(--dark-border);
            box-shadow: var(--shadow-dark);
            padding: 24px;
            position: relative;
            overflow: hidden;
        }
        .sidebar-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
        }
        .sidebar-card-title {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--dark-text);
            margin: 0 0 14px;
            line-height: 1.4;
        }
        .sidebar-card .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .sidebar-stats {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 16px;
        }
        .sidebar-stat-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--dark-muted);
            gap: 10px;
        }
        .sidebar-stat-row .ss-value {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--dark-text);
            font-size: 18px;
        }
        .sidebar-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-gold);
            font-weight: 700;
            font-size: 14px;
            transition: all 0.22s ease;
            min-height: 44px;
            align-items: center;
        }
        .sidebar-link:hover {
            color: var(--brand-orange);
            gap: 10px;
        }
        .sidebar-link svg {
            flex-shrink: 0;
        }

        .sidebar-form-card {
            background: var(--dark-base);
            border-radius: var(--radius-lg);
            border: 1px solid var(--dark-border);
            box-shadow: var(--shadow-dark);
            padding: 24px;
            position: relative;
            overflow: hidden;
        }
        .sidebar-form-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
        }
        .sidebar-form-card .form-title {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-text);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .sidebar-form-card .form-desc {
            font-size: 13px;
            color: var(--dark-muted);
            margin: 0 0 16px;
            line-height: 1.6;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            background: #2A2A32;
            border: 1px solid #3A3A45;
            border-radius: var(--radius-xs);
            color: #EDEDF2;
            font-size: 15px;
            transition: all 0.22s ease;
            line-height: 1.5;
        }
        .form-group textarea {
            height: 90px;
            padding: 12px 14px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18);
            background: #22222A;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #6B6B72;
        }
        .btn-form {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all 0.22s ease;
            letter-spacing: 0.02em;
        }
        .btn-form:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 107, 53, 0.35);
        }
        .btn-form:active {
            transform: translateY(1px);
            filter: brightness(0.95);
        }
        .form-privacy {
            font-size: 12px;
            color: #6B6B72;
            margin-top: 10px;
            line-height: 1.5;
        }

        /* ===== 分页器 ===== */
        .pagination-wrap {
            padding: 32px 0 40px;
            display: flex;
            justify-content: center;
        }
        .pagination {
            display: flex;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .pagination li a,
        .pagination li span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-xs);
            border: 1px solid var(--light-border);
            background: var(--light-card);
            color: var(--light-text);
            font-weight: 600;
            font-size: 14px;
            transition: all 0.22s ease;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
        }
        .pagination li a:hover {
            border-color: var(--brand-orange);
            color: var(--brand-orange);
            background: rgba(255, 107, 53, 0.06);
        }
        .pagination li span.current {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            font-weight: 700;
            box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-base);
            color: var(--dark-text);
            padding: 56px 0 0;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--dark-muted);
            line-height: 1.75;
            margin: 16px 0;
            max-width: 280px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-logo-text {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.02em;
        }
        .footer-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-col-title {
            font-family: var(--font-title);
            font-size: 14px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0 0 16px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--dark-muted);
            transition: all 0.22s ease;
            display: inline-flex;
            align-items: center;
            min-height: 32px;
        }
        .footer-links a:hover {
            color: var(--brand-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            border-top: 1px solid var(--dark-border);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-copyright {
            font-size: 12px;
            color: #6B6B72;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .cat-hero-grid {
                grid-template-columns: 1fr 250px;
                gap: 24px;
            }
            .cat-hero-info h1 {
                font-size: 30px;
            }
            .list-card {
                grid-template-columns: 170px 1fr;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .cat-hero-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cat-hero {
                padding: 32px 0 28px;
            }
            .cat-hero-info h1 {
                font-size: 28px;
            }
            .cat-hero-stat {
                padding: 16px 18px;
                gap: 12px;
            }
            .cat-hero-stat .stat-value {
                font-size: 24px;
            }
            .cat-main {
                padding: 28px 0 48px;
            }
            .cat-main .grid-x {
                gap: 22px;
            }
            .list-card {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .list-card-thumb {
                min-height: 180px;
                max-height: 220px;
            }
            .list-card-body {
                padding: 16px 18px;
            }
            .list-card-title {
                font-size: 17px;
            }
            .brand-row {
                padding: 0 16px;
                height: 64px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-graphic {
                width: 34px;
                height: 34px;
            }
            .channel-row {
                padding: 0 16px;
            }
            .btn-header {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hamburger.is-open + .channel-row {
                display: flex;
            }
            .pagination li a,
            .pagination li span {
                width: 40px;
                height: 40px;
                min-width: 40px;
                min-height: 40px;
                font-size: 13px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container-full {
                padding-left: 14px;
                padding-right: 14px;
            }
            .brand-row {
                padding: 0 14px;
            }
            .channel-row {
                padding: 0 14px;
                gap: 6px;
            }
            .channel-tag {
                height: 30px;
                padding: 0 12px;
                font-size: 12px;
                min-height: 30px;
            }
            .cat-hero-info h1 {
                font-size: 24px;
                line-height: 1.35;
            }
            .cat-hero-info .hero-sub {
                font-size: 14px;
            }
            .list-card-thumb {
                min-height: 150px;
                max-height: 180px;
            }
            .list-card-body {
                padding: 14px 16px;
            }
            .list-card-summary {
                font-size: 13px;
            }
            .sidebar-card,
            .sidebar-form-card {
                padding: 18px;
            }
            .pagination {
                gap: 6px;
            }
            .pagination li a,
            .pagination li span {
                width: 36px;
                height: 36px;
                min-width: 36px;
                min-height: 36px;
                font-size: 12px;
                border-radius: 8px;
            }
            .breadcrumb {
                font-size: 12px;
                gap: 4px;
            }
        }

/* roulang page: category2 */
:root {
        --dark-base: #17171C;
        --dark-card: #1E1E28;
        --dark-border: #2F2F38;
        --dark-text: #EDEDF2;
        --dark-muted: #A3A3AD;
        --light-panel: #F7F6F2;
        --light-card: #FFFFFF;
        --light-border: #E4E3DE;
        --light-text: #1E1E24;
        --light-muted: #6B6B72;
        --brand-orange: #FF6B35;
        --brand-gold: #FFB800;
        --brand-green: #00C896;
        --brand-mint: #7CD6B5;
        --danger: #FF4D4F;
        --radius-lg: 20px;
        --radius-md: 16px;
        --radius-sm: 12px;
        --radius-xs: 10px;
        --radius-pill: 999px;
        --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
        --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
        --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
        --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
        --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
        --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
        --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
        --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
        --container-max: 1240px;
        --section-pad-desktop: 96px;
        --section-pad-mobile: 56px;
    }

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        font-family: var(--font-body);
        font-size: 16px;
        line-height: 1.75;
        color: var(--light-text);
        background-color: var(--light-panel);
        margin: 0;
        padding: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
    }

    a:focus,
    button:focus,
    input:focus,
    textarea:focus,
    select:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
        border-radius: var(--radius-xs);
    }

    button,
    input,
    textarea,
    select {
        font-family: var(--font-body);
    }

    .container-full {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    /* ===== 顶部导航 - 品牌行 ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: var(--dark-base);
        transition: all 0.3s ease;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
    }

    .site-header.scrolled .brand-row {
        height: 56px;
    }

    .brand-row {
        height: 72px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        transition: height 0.3s ease;
        padding: 0 24px;
        max-width: var(--container-max);
        margin: 0 auto;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .logo-graphic {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: var(--brand-gradient);
        position: relative;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .logo-graphic::before {
        content: '';
        position: absolute;
        top: 6px;
        left: 6px;
        width: 12px;
        height: 12px;
        border-radius: 4px;
        background: rgba(255, 255, 255, 0.9);
        opacity: 0.85;
    }

    .logo-graphic::after {
        content: '';
        position: absolute;
        bottom: 7px;
        right: 7px;
        width: 16px;
        height: 10px;
        border-radius: 3px;
        background: rgba(255, 255, 255, 0.55);
        opacity: 0.8;
    }

    .logo-text {
        font-family: var(--font-title);
        font-size: 22px;
        font-weight: 800;
        color: #F8F7F2;
        letter-spacing: 0.03em;
        line-height: 1.2;
    }

    .brand-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .btn-primary-sm {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--brand-gradient);
        color: #fff;
        font-weight: 700;
        font-size: 14px;
        padding: 10px 20px;
        border-radius: var(--radius-pill);
        border: none;
        cursor: pointer;
        height: 40px;
        min-width: 96px;
        transition: all 0.25s ease;
        box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
        letter-spacing: 0.04em;
    }

    .btn-primary-sm:hover {
        filter: brightness(1.12);
        transform: translateY(-1px);
        box-shadow: 0 6px 18px rgba(255, 107, 53, 0.4);
        color: #fff;
    }

    .btn-primary-sm:active {
        transform: translateY(1px);
        filter: brightness(0.95);
        box-shadow: 0 1px 5px rgba(255, 107, 53, 0.25);
    }

    .hamburger-button {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        position: relative;
        border-radius: var(--radius-sm);
    }

    .hamburger-line {
        display: block;
        width: 24px;
        height: 2px;
        background: #EDEDF2;
        margin: 4px auto;
        border-radius: 2px;
        transition: all 0.3s ease;
    }

    .hamburger-button.is-open .hamburger-line:nth-child(1) {
        transform: translateY(5px) rotate(45deg);
    }

    .hamburger-button.is-open .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger-button.is-open .hamburger-line:nth-child(3) {
        transform: translateY(-5px) rotate(-45deg);
    }

    /* ===== 频道行 ===== */
    .channel-row {
        background: rgba(255, 255, 255, 0.03);
        border-top: 1px solid var(--dark-border);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        padding: 6px 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: var(--container-max);
        margin: 0 auto;
        display: flex;
        align-items: center;
        gap: 8px;
        scrollbar-width: thin;
        scrollbar-color: #3A3A45 transparent;
    }

    .channel-row::-webkit-scrollbar {
        height: 3px;
    }

    .channel-row::-webkit-scrollbar-track {
        background: transparent;
    }

    .channel-row::-webkit-scrollbar-thumb {
        background: #3A3A45;
        border-radius: 3px;
    }

    .channel-tag {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 8px 16px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        font-weight: 600;
        white-space: nowrap;
        color: #A3A3AD;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.12);
        transition: all 0.22s ease;
        min-height: 36px;
        letter-spacing: 0.02em;
    }

    .channel-tag:hover {
        background: var(--brand-gradient);
        color: #fff;
        border-color: transparent;
        transform: translateY(-1px);
    }

    .channel-tag.active {
        background: var(--brand-gradient);
        color: #fff;
        border-color: transparent;
        box-shadow: 0 2px 12px rgba(255, 107, 53, 0.35);
        font-weight: 700;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-section {
        background: #fff;
        border-bottom: 1px solid var(--light-border);
        padding: 18px 0;
    }

    .breadcrumb-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--light-muted);
        flex-wrap: wrap;
    }

    .breadcrumb-nav a {
        color: var(--light-muted);
        transition: color 0.22s;
    }

    .breadcrumb-nav a:hover {
        color: var(--brand-orange);
    }

    .breadcrumb-nav .separator {
        color: #C9C8C2;
        margin: 0 4px;
        user-select: none;
    }

    .breadcrumb-nav .current {
        color: var(--light-text);
        font-weight: 600;
    }

    /* ===== 分类 Hero（数据总览型） ===== */
    .category-hero {
        background: #fff;
        padding: 56px 0 48px;
        position: relative;
        overflow: hidden;
    }

    .category-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--brand-gradient);
    }

    .category-hero .container-full {
        position: relative;
        z-index: 2;
    }

    .category-hero-grid {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 48px;
        align-items: center;
    }

    .category-hero h1 {
        font-family: var(--font-title);
        font-size: 38px;
        font-weight: 800;
        line-height: 1.2;
        color: var(--light-text);
        margin: 0 0 14px;
        letter-spacing: 0.02em;
    }

    .category-hero .hero-desc {
        font-size: 16px;
        color: var(--light-muted);
        line-height: 1.75;
        max-width: 560px;
        margin: 0;
    }

    .hero-ring-wrap {
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 0 12px;
    }

    .ring-chart {
        width: 160px;
        height: 160px;
        border-radius: 50%;
        background: conic-gradient(var(--brand-orange) 0% 68%, var(--brand-gold) 68% 88%, var(--brand-green) 88% 100%);
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 24px rgba(255, 107, 53, 0.2);
    }

    .ring-chart::before {
        content: '';
        position: absolute;
        inset: 12px;
        border-radius: 50%;
        background: #fff;
    }

    .ring-chart .ring-value {
        position: relative;
        z-index: 2;
        font-family: var(--font-mono);
        font-size: 38px;
        font-weight: 800;
        color: var(--light-text);
        line-height: 1;
    }

    .ring-label {
        font-size: 13px;
        color: var(--light-muted);
        font-weight: 600;
        letter-spacing: 0.05em;
        text-align: center;
    }

    /* ===== 数据总览看板区 ===== */
    .metrics-overview-section {
        background: var(--light-panel);
        padding: 64px 0 56px;
        position: relative;
    }

    .metrics-overview-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: var(--light-border);
    }

    .section-header {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        margin-bottom: 32px;
        gap: 20px;
        flex-wrap: wrap;
    }

    .section-header h2 {
        font-family: var(--font-title);
        font-size: 30px;
        font-weight: 700;
        color: var(--light-text);
        margin: 0 0 8px;
        letter-spacing: 0.02em;
        line-height: 1.25;
    }

    .section-header .section-sub {
        font-size: 15px;
        color: var(--light-muted);
        margin: 0;
        max-width: 480px;
        line-height: 1.65;
    }

    .section-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--brand-orange);
        font-size: 14px;
        font-weight: 600;
        white-space: nowrap;
        transition: color 0.22s;
    }

    .section-link svg {
        transition: transform 0.22s;
    }

    .section-link:hover {
        color: #E85A2A;
    }

    .section-link:hover svg {
        transform: translateX(3px);
    }

    .metrics-grid-6 {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .metric-mini-card {
        background: var(--light-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--light-border);
        padding: 20px 22px;
        box-shadow: var(--shadow-light);
        transition: all 0.25s ease;
        position: relative;
        overflow: hidden;
    }

    .metric-mini-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--brand-gradient);
        opacity: 0.7;
    }

    .metric-mini-card:nth-child(2)::before {
        background: var(--green-gradient);
        opacity: 0.7;
    }

    .metric-mini-card:nth-child(3)::before {
        background: var(--brand-gradient);
        opacity: 0.4;
    }

    .metric-mini-card:nth-child(5)::before {
        background: var(--green-gradient);
        opacity: 0.5;
    }

    .metric-mini-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-light-hover);
        border-color: #D8D6CF;
    }

    .metric-mini-card .metric-label {
        font-size: 13px;
        color: var(--light-muted);
        font-weight: 600;
        letter-spacing: 0.04em;
        margin-bottom: 8px;
        text-transform: uppercase;
    }

    .metric-mini-card .metric-value {
        font-family: var(--font-mono);
        font-size: 36px;
        font-weight: 800;
        color: var(--light-text);
        line-height: 1.1;
        margin-bottom: 6px;
    }

    .metric-mini-card .metric-meta {
        font-size: 13px;
        color: var(--light-muted);
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .trend-up {
        color: var(--brand-green);
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        gap: 2px;
    }

    .trend-down {
        color: var(--danger);
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        gap: 2px;
    }

    /* ===== 数据明细区 ===== */
    .data-detail-section {
        background: #fff;
        padding: 64px 0 56px;
    }

    .data-detail-table-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
        overflow-x: auto;
        padding-bottom: 8px;
    }

    .data-column-card {
        background: var(--light-panel);
        border-radius: var(--radius-md);
        border: 1px solid var(--light-border);
        padding: 0;
        min-width: 220px;
        overflow: hidden;
        transition: all 0.25s ease;
    }

    .data-column-card:hover {
        box-shadow: var(--shadow-light-hover);
        border-color: #D8D6CF;
        transform: translateY(-2px);
    }

    .data-column-header {
        background: var(--dark-base);
        color: #F8F7F2;
        padding: 14px 16px;
        font-weight: 700;
        font-size: 15px;
        letter-spacing: 0.03em;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .data-column-header .col-badge {
        font-family: var(--font-mono);
        font-size: 12px;
        background: var(--brand-gradient);
        color: #fff;
        padding: 2px 8px;
        border-radius: var(--radius-pill);
        font-weight: 600;
    }

    .data-column-body {
        padding: 8px 0;
    }

    .data-row {
        padding: 10px 16px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid #EFEEEA;
        font-size: 13px;
        color: var(--light-muted);
        gap: 8px;
    }

    .data-row:last-child {
        border-bottom: none;
    }

    .data-row .row-value {
        font-family: var(--font-mono);
        font-weight: 700;
        color: var(--light-text);
        font-size: 14px;
        white-space: nowrap;
    }

    .data-row .row-value.highlight {
        color: var(--brand-orange);
    }

    .data-row .row-value.green {
        color: var(--brand-green);
    }

    .data-column-footer {
        padding: 12px 16px;
        border-top: 2px solid var(--light-border);
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 13px;
        font-weight: 700;
        color: var(--light-text);
    }

    .data-column-footer .footer-badge {
        background: var(--brand-gradient-soft);
        color: var(--brand-orange);
        padding: 4px 10px;
        border-radius: var(--radius-pill);
        font-weight: 700;
        font-size: 12px;
    }

    /* ===== 图表占位区 ===== */
    .chart-section {
        background: var(--light-panel);
        padding: 64px 0 72px;
    }

    .chart-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .chart-panel {
        background: var(--light-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--light-border);
        padding: 28px 28px 24px;
        box-shadow: var(--shadow-light);
    }

    .chart-panel h3 {
        font-family: var(--font-title);
        font-size: 18px;
        font-weight: 700;
        color: var(--light-text);
        margin: 0 0 20px;
        letter-spacing: 0.02em;
    }

    .bar-chart-group {
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .bar-row {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .bar-label {
        font-size: 13px;
        color: var(--light-muted);
        width: 72px;
        flex-shrink: 0;
        font-weight: 600;
    }

    .bar-track {
        flex: 1;
        height: 26px;
        background: #F0EFEB;
        border-radius: 8px;
        overflow: hidden;
        position: relative;
    }

    .bar-fill {
        height: 100%;
        border-radius: 8px;
        background: var(--brand-gradient);
        transition: width 0.6s ease;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding-right: 8px;
        min-width: 28px;
    }

    .bar-fill.green {
        background: var(--green-gradient);
    }

    .bar-fill.gold {
        background: linear-gradient(135deg, #FFB800 0%, #FFEAA7 100%);
    }

    .bar-value {
        font-family: var(--font-mono);
        font-size: 12px;
        color: #fff;
        font-weight: 700;
        text-shadow: 0 1px 3px rgba(0,0,0,0.25);
    }

    .bar-value.dark {
        color: #1E1E24;
        text-shadow: none;
    }

    .chart-note {
        font-size: 12px;
        color: var(--light-muted);
        margin-top: 16px;
        text-align: right;
        border-top: 1px solid var(--light-border);
        padding-top: 12px;
    }

    /* ===== FAQ 区 ===== */
    .faq-section {
        background: #fff;
        padding: 64px 0 72px;
    }

    .faq-section .section-header h2 {
        margin-bottom: 8px;
    }

    .faq-accordion {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .faq-item {
        background: var(--light-card);
        border: 1px solid var(--light-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all 0.25s ease;
    }

    .faq-item.is-open {
        border-left: 4px solid var(--brand-orange);
        box-shadow: var(--shadow-light-hover);
    }

    .faq-item-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 22px;
        cursor: pointer;
        gap: 16px;
        transition: all 0.22s;
    }

    .faq-item-header:hover {
        background: #FAFAF8;
    }

    .faq-item-header h3 {
        font-family: var(--font-title);
        font-size: 16px;
        font-weight: 600;
        color: var(--light-text);
        margin: 0;
        letter-spacing: 0.01em;
        line-height: 1.4;
    }

    .faq-indicator {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--brand-gradient-soft);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.25s ease;
        position: relative;
    }

    .faq-indicator::before,
    .faq-indicator::after {
        content: '';
        position: absolute;
        background: var(--brand-orange);
        border-radius: 2px;
        transition: all 0.25s ease;
    }

    .faq-indicator::before {
        width: 12px;
        height: 2px;
    }

    .faq-indicator::after {
        width: 2px;
        height: 12px;
    }

    .faq-item.is-open .faq-indicator {
        transform: rotate(45deg);
        background: var(--brand-gradient);
    }

    .faq-item.is-open .faq-indicator::before,
    .faq-item.is-open .faq-indicator::after {
        background: #fff;
    }

    .faq-item-body {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease;
    }

    .faq-item.is-open .faq-item-body {
        max-height: 250px;
    }

    .faq-item-body-inner {
        padding: 0 22px 20px;
        font-size: 15px;
        color: var(--light-muted);
        line-height: 1.8;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--dark-base);
        margin-top: 0;
        position: relative;
    }

    .site-footer::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--brand-gradient);
    }

    .footer-main {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding: 56px 0 40px;
    }

    .footer-brand-desc {
        color: var(--dark-muted);
        font-size: 14px;
        line-height: 1.7;
        margin: 16px 0 18px;
        max-width: 320px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .footer-logo-text {
        font-family: var(--font-title);
        font-size: 20px;
        font-weight: 800;
        color: #F8F7F2;
        letter-spacing: 0.03em;
    }

    .footer-badge-row {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 12px;
        border-radius: var(--radius-pill);
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
        line-height: 1.3;
    }

    .badge-dark-outline {
        background: transparent;
        color: #A3A3AD;
        border: 1px solid #3A3A45;
    }

    .badge-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        display: inline-block;
        flex-shrink: 0;
    }

    .badge-dot.green {
        background: var(--brand-green);
        box-shadow: 0 0 6px rgba(0, 200, 150, 0.5);
    }

    .badge-dot.orange {
        background: var(--brand-orange);
        box-shadow: 0 0 6px rgba(255, 107, 53, 0.5);
    }

    .footer-col-title {
        font-size: 14px;
        font-weight: 700;
        color: #F8F7F2;
        margin: 0 0 14px;
        letter-spacing: 0.08em;
    }

    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-links li a {
        color: var(--dark-muted);
        font-size: 14px;
        transition: color 0.22s, padding-left 0.22s;
        display: inline-flex;
        align-items: center;
        padding: 4px 0;
    }

    .footer-links li a:hover {
        color: var(--brand-gold);
        padding-left: 4px;
    }

    .footer-bottom {
        border-top: 1px solid var(--dark-border);
        padding: 20px 0 24px;
        text-align: center;
    }

    .footer-copyright {
        color: var(--dark-muted);
        font-size: 13px;
        margin: 0;
        letter-spacing: 0.03em;
    }

    /* ===== 响应式设计 ===== */
    @media (max-width: 1024px) {
        .category-hero-grid {
            grid-template-columns: 1fr auto;
            gap: 32px;
        }

        .category-hero h1 {
            font-size: 32px;
        }

        .metrics-grid-6 {
            grid-template-columns: repeat(2, 1fr);
        }

        .data-detail-table-grid {
            grid-template-columns: repeat(2, 1fr);
            overflow-x: auto;
        }

        .chart-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .footer-main {
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 28px;
        }
    }

    @media (max-width: 768px) {
        .brand-row {
            height: 64px;
            padding: 0 16px;
        }

        .logo-text {
            font-size: 19px;
        }

        .logo-graphic {
            width: 34px;
            height: 34px;
        }

        .btn-primary-sm {
            padding: 8px 16px;
            font-size: 13px;
            height: 38px;
            min-width: 80px;
        }

        .category-hero {
            padding: 40px 0 36px;
        }

        .category-hero-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .category-hero h1 {
            font-size: 28px;
            margin-bottom: 10px;
        }

        .hero-ring-wrap {
            flex-direction: row;
            justify-content: flex-start;
            gap: 16px;
            padding: 0;
        }

        .ring-chart {
            width: 120px;
            height: 120px;
        }

        .ring-chart .ring-value {
            font-size: 28px;
        }

        .ring-chart::before {
            inset: 9px;
        }

        .ring-label {
            font-size: 12px;
        }

        .section-header h2 {
            font-size: 24px;
        }

        .metrics-grid-6 {
            grid-template-columns: 1fr;
            gap: 14px;
        }

        .metric-mini-card .metric-value {
            font-size: 28px;
        }

        .data-detail-table-grid {
            grid-template-columns: 1fr;
            overflow-x: auto;
            display: flex;
            flex-wrap: nowrap;
            gap: 12px;
            padding-bottom: 4px;
        }

        .data-column-card {
            min-width: 200px;
            flex-shrink: 0;
        }

        .chart-panel {
            padding: 20px 16px;
        }

        .bar-label {
            width: 56px;
            font-size: 12px;
        }

        .bar-track {
            height: 22px;
        }

        .footer-main {
            grid-template-columns: 1fr;
            gap: 28px;
            padding: 40px 0 28px;
        }

        .footer-brand-desc {
            max-width: 100%;
        }

        .footer-bottom {
            text-align: center;
        }

        .section-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }

        .faq-item-header {
            padding: 14px 16px;
        }

        .faq-item-header h3 {
            font-size: 15px;
        }

        .faq-item-body-inner {
            padding: 0 16px 16px;
            font-size: 14px;
        }
    }

    @media (max-width: 520px) {
        .brand-actions .btn-primary-sm {
            display: none;
        }

        .hamburger-button {
            display: flex;
        }

        .channel-row {
            padding: 4px 10px;
            gap: 6px;
        }

        .channel-tag {
            padding: 6px 12px;
            font-size: 13px;
            min-height: 34px;
        }

        .container-full {
            padding-left: 12px;
            padding-right: 12px;
        }

        .category-hero h1 {
            font-size: 24px;
        }

        .category-hero .hero-desc {
            font-size: 14px;
        }

        .section-header h2 {
            font-size: 21px;
        }

        .bar-label {
            width: 48px;
            font-size: 11px;
        }
    }

/* roulang page: category3 */
:root {
            --dark-base: #17171C;
            --dark-card: #1E1E28;
            --dark-border: #2F2F38;
            --dark-text: #EDEDF2;
            --dark-muted: #A3A3AD;
            --light-panel: #F7F6F2;
            --light-card: #FFFFFF;
            --light-border: #E4E3DE;
            --light-text: #1E1E24;
            --light-muted: #6B6B72;
            --brand-orange: #FF6B35;
            --brand-gold: #FFB800;
            --brand-green: #00C896;
            --brand-mint: #7CD6B5;
            --danger: #FF4D4F;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 10px;
            --radius-pill: 999px;
            --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
            --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
            --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
            --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
            --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
            --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
            --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
            --container-max: 1240px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background-color: var(--light-panel);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, opacity 0.22s ease;
        }
        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            border-radius: var(--radius-xs);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
        }
        .container-full {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-full {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--dark-base);
            transition: all 0.3s ease;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }
        .site-header.scrolled .brand-row {
            height: 56px;
        }
        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height 0.3s ease;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        @media (max-width: 640px) {
            .brand-row {
                padding: 0 16px;
                height: 64px;
            }
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-graphic {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            position: relative;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .logo-graphic::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.9);
            opacity: 0.85;
        }
        .logo-graphic::after {
            content: '';
            position: absolute;
            bottom: 7px;
            right: 7px;
            width: 16px;
            height: 10px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 0.8;
        }
        .logo-text {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
            line-height: 1.2;
        }
        @media (max-width: 640px) {
            .logo-text {
                font-size: 19px;
            }
            .logo-graphic {
                width: 34px;
                height: 34px;
            }
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            white-space: nowrap;
        }
        .btn-nav-cta:hover {
            opacity: 0.9;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }
        .btn-nav-cta:active {
            transform: translateY(0);
            opacity: 0.85;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--dark-border);
            background: transparent;
            cursor: pointer;
            gap: 5px;
            transition: all 0.25s ease;
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--dark-text);
            border-radius: 2px;
            transition: all 0.25s ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            transform: rotate(-45deg);
            margin-top: -4px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .btn-nav-cta {
                display: none;
            }
        }

        .channel-row {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(30, 30, 36, 0.85);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-row::-webkit-scrollbar {
            display: none;
        }
        @media (max-width: 640px) {
            .channel-row {
                padding: 8px 16px;
                gap: 6px;
            }
        }
        .channel-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            min-height: 36px;
            transition: all 0.22s ease;
            border: 1px solid transparent;
            color: var(--dark-muted);
            background: transparent;
        }
        .channel-tag:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--dark-text);
            border-color: rgba(255, 255, 255, 0.15);
        }
        .channel-tag.active {
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
            border-color: transparent;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: var(--light-card);
            border-bottom: 1px solid var(--light-border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand-orange);
            font-weight: 600;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-gold);
        }
        .breadcrumb .separator {
            color: var(--light-border);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--light-text);
            font-weight: 600;
        }

        /* ===== 分类页 Hero（矮版） ===== */
        .category-hero {
            background: var(--dark-base);
            position: relative;
            overflow: hidden;
            padding: 56px 0 48px;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 36px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 768px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
        }
        .category-hero-content h1 {
            font-family: var(--font-title);
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: #F8F7F2;
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }
        @media (max-width: 640px) {
            .category-hero-content h1 {
                font-size: 30px;
                line-height: 1.3;
            }
        }
        .category-hero-content .hero-sub {
            font-size: 16px;
            color: var(--dark-muted);
            line-height: 1.75;
            margin: 0;
            max-width: 560px;
        }
        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 14px;
        }
        .category-hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-green);
            display: inline-block;
            animation: pulse 2s ease-in-out infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .hero-stat-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            box-shadow: var(--shadow-dark);
        }
        .hero-stat-card .stat-label {
            font-size: 13px;
            color: var(--dark-muted);
            font-weight: 500;
        }
        .hero-stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 800;
            color: var(--brand-gold);
            line-height: 1.1;
        }
        .hero-stat-card .stat-note {
            font-size: 12px;
            color: var(--dark-muted);
        }
        .hero-stat-card .stat-progress {
            height: 6px;
            border-radius: 3px;
            background: var(--dark-border);
            margin-top: 8px;
            overflow: hidden;
        }
        .hero-stat-card .stat-progress .fill {
            height: 100%;
            border-radius: 3px;
            background: var(--brand-gradient);
            width: 75%;
        }

        /* ===== 步骤流程区 ===== */
        .section-flow {
            padding: var(--section-pad-desktop) 0;
            background: var(--light-panel);
        }
        @media (max-width: 640px) {
            .section-flow {
                padding: var(--section-pad-mobile) 0;
            }
        }
        .section-head {
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient-soft);
            color: var(--brand-orange);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-family: var(--font-title);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--light-text);
            margin: 0 0 10px;
        }
        @media (max-width: 640px) {
            .section-head h2 {
                font-size: 24px;
            }
        }
        .section-head .section-desc {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 620px;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
            margin-top: 20px;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .step-connector {
            display: none;
        }
        @media (min-width: 1025px) {
            .steps-grid {
                gap: 28px;
            }
            .step-card {
                position: relative;
            }
            .step-card:not(:last-child)::after {
                content: '';
                position: absolute;
                top: 36px;
                right: -28px;
                width: 28px;
                height: 2px;
                border-top: 2px dashed #D0CFCA;
                z-index: 0;
            }
        }
        .step-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-lg);
            padding: 28px 22px 24px;
            box-shadow: var(--shadow-light);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            position: relative;
            z-index: 1;
        }
        .step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-light-hover);
            border-color: rgba(255, 107, 53, 0.35);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 18px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.28);
        }
        .step-card:hover .step-number {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
        }
        .step-card h3 {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 10px;
            line-height: 1.4;
        }
        .step-card p {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 说明扩展区 ===== */
        .section-detail {
            padding: var(--section-pad-desktop) 0;
            background: #FFFFFF;
        }
        @media (max-width: 640px) {
            .section-detail {
                padding: var(--section-pad-mobile) 0;
            }
        }
        .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .detail-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .detail-text h3 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .detail-text p {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.85;
            margin: 0 0 14px;
        }
        .detail-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            aspect-ratio: 4 / 3;
        }
        .detail-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .detail-points {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 8px;
        }
        .detail-point {
            background: var(--light-panel);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all 0.22s ease;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .detail-point:hover {
            border-color: rgba(255, 107, 53, 0.3);
            box-shadow: var(--shadow-light);
            transform: translateX(3px);
        }
        .detail-point .point-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--green-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }
        .detail-point .point-icon svg {
            width: 16px;
            height: 16px;
            stroke: #FFFFFF;
            stroke-width: 1.5;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .detail-point h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 4px;
        }
        .detail-point p {
            font-size: 13px;
            color: var(--light-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .section-faq {
            padding: var(--section-pad-desktop) 0;
            background: var(--light-panel);
        }
        @media (max-width: 640px) {
            .section-faq {
                padding: var(--section-pad-mobile) 0;
            }
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 20px;
        }
        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s ease;
            box-shadow: 0 1px 4px rgba(30, 30, 36, 0.04);
        }
        .faq-item.active {
            border-left: 4px solid var(--brand-orange);
            box-shadow: var(--shadow-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            gap: 16px;
            user-select: none;
            border: none;
            background: transparent;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--light-text);
            transition: all 0.2s ease;
            min-height: 52px;
        }
        .faq-question:hover {
            background: rgba(255, 107, 53, 0.04);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--light-panel);
            border: 1px solid var(--light-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--light-muted);
            transition: all 0.25s ease;
            line-height: 1;
        }
        .faq-item.active .faq-question .faq-icon {
            background: var(--brand-gradient);
            color: #FFFFFF;
            border-color: transparent;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.85;
            margin: 0;
        }

        /* ===== 页面 CTA ===== */
        .section-page-cta {
            padding: 48px 0;
            background: var(--dark-base);
            position: relative;
            overflow: hidden;
        }
        .section-page-cta::before {
            content: '';
            position: absolute;
            top: -40px;
            left: 10%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 184, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-cta-box {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
            box-shadow: var(--shadow-dark);
        }
        @media (max-width: 640px) {
            .page-cta-box {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }
        }
        .page-cta-text h3 {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 700;
            color: var(--dark-text);
            margin: 0 0 8px;
        }
        .page-cta-text p {
            font-size: 14px;
            color: var(--dark-muted);
            margin: 0;
            line-height: 1.7;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 26px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: all 0.22s ease;
            white-space: nowrap;
            min-width: 140px;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
        }
        .btn-primary:hover {
            opacity: 0.92;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
            opacity: 0.88;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-base);
            border-top: 4px solid transparent;
            border-image: var(--brand-gradient) 1;
            padding-top: 56px;
            position: relative;
        }
        .site-footer .container-full {
            padding-bottom: 28px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--dark-border);
        }
        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-logo-text {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.75;
            margin: 0 0 16px;
            max-width: 320px;
        }
        .footer-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-dark-outline {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--dark-text);
        }
        .badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }
        .badge-dot.green {
            background: var(--brand-green);
        }
        .badge-dot.orange {
            background: var(--brand-orange);
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0 0 16px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--dark-muted);
            transition: all 0.2s ease;
            display: inline-block;
            position: relative;
        }
        .footer-links a:hover {
            color: var(--brand-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            padding: 20px 0 10px;
            text-align: center;
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--dark-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 移动端菜单抽屉 ===== */
        .mobile-menu {
            display: none;
            background: var(--dark-base);
            border-top: 1px solid var(--dark-border);
            padding: 8px 16px 16px;
        }
        .mobile-menu.show {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 12px;
            font-size: 14px;
            color: var(--dark-muted);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-weight: 500;
            transition: color 0.2s ease;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--brand-gold);
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== 辅助可见性 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category5 */
:root {
            --dark-base: #17171C;
            --dark-card: #1E1E28;
            --dark-border: #2F2F38;
            --dark-text: #EDEDF2;
            --dark-muted: #A3A3AD;
            --light-panel: #F7F6F2;
            --light-card: #FFFFFF;
            --light-border: #E4E3DE;
            --light-text: #1E1E24;
            --light-muted: #6B6B72;
            --brand-orange: #FF6B35;
            --brand-gold: #FFB800;
            --brand-green: #00C896;
            --brand-mint: #7CD6B5;
            --danger: #FF4D4F;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 10px;
            --radius-pill: 999px;
            --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
            --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
            --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
            --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
            --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
            --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
            --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
            --container-max: 1240px;
            --section-pad-desktop: 96px;
            --section-pad-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background-color: var(--light-panel);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, border-color 0.22s ease;
        }

        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            border-radius: var(--radius-xs);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
        }

        .container-full {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--dark-base);
            transition: all 0.3s ease;
            border-bottom: 1px solid var(--dark-border);
        }

        .site-header.scrolled .brand-row {
            height: 56px;
        }

        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height 0.3s ease;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-graphic {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            position: relative;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
        }

        .logo-graphic::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.9);
            opacity: 0.85;
        }

        .logo-graphic::after {
            content: '';
            position: absolute;
            bottom: 7px;
            right: 7px;
            width: 16px;
            height: 10px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 0.8;
        }

        .logo-text {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-brand-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: all 0.22s ease;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
        }

        .btn-brand-small:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 107, 53, 0.35);
            color: #fff;
        }

        .btn-brand-small:active {
            transform: translateY(1px);
            filter: brightness(0.95);
        }

        .hamburger-btn {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--dark-border);
            background: var(--dark-card);
            border-radius: 10px;
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: all 0.22s ease;
            flex-shrink: 0;
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #EDEDF2;
            border-radius: 2px;
            transition: all 0.28s ease;
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .channel-row {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px 10px;
            max-width: var(--container-max);
            margin: 0 auto;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--dark-border) transparent;
            flex-wrap: nowrap;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .channel-row::-webkit-scrollbar {
            height: 3px;
        }
        .channel-row::-webkit-scrollbar-track {
            background: transparent;
        }
        .channel-row::-webkit-scrollbar-thumb {
            background: var(--dark-border);
            border-radius: 999px;
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            min-height: 36px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            background: rgba(255, 255, 255, 0.04);
            color: var(--dark-muted);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.22s ease;
            cursor: pointer;
        }

        .channel-tag:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #F8F7F2;
            border-color: rgba(255, 255, 255, 0.2);
        }

        .channel-tag.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-section {
            background: var(--light-panel);
            padding: 16px 0 0;
            border-bottom: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--light-muted);
            transition: color 0.22s ease;
        }

        .breadcrumb-nav a:hover {
            color: var(--brand-orange);
        }

        .breadcrumb-nav .separator {
            color: #C0BEB5;
            font-size: 12px;
            user-select: none;
        }

        .breadcrumb-nav .current {
            color: var(--light-text);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .resource-hero {
            position: relative;
            background-color: var(--dark-base);
            background-image:
                linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.06) 50%, rgba(0, 200, 150, 0.04) 100%),
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 100% 100%, 40px 40px, 40px 40px;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            margin: 0 16px 16px;
            padding: 56px 0 48px;
            overflow: hidden;
        }

        .resource-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle at top right, rgba(255, 107, 53, 0.18), transparent 68%);
            pointer-events: none;
            border-radius: 50%;
        }

        .resource-hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .resource-hero-left {
            padding: 8px 0;
        }

        .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            min-height: 26px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.03em;
            white-space: nowrap;
            line-height: 1.4;
        }

        .badge-gradient {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
        }

        .badge-dark-outline {
            background: rgba(255, 255, 255, 0.06);
            color: #EDEDF2;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .badge-light-outline {
            background: #FFFFFF;
            color: var(--light-text);
            border: 1px solid var(--light-border);
        }

        .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
            display: inline-block;
        }

        .badge-dot.green {
            background: var(--brand-green);
            box-shadow: 0 0 8px rgba(0, 200, 150, 0.5);
        }

        .badge-dot.orange {
            background: var(--brand-orange);
            box-shadow: 0 0 8px rgba(255, 107, 53, 0.5);
        }

        .badge-dot.gold {
            background: var(--brand-gold);
            box-shadow: 0 0 8px rgba(255, 184, 0, 0.5);
        }

        .resource-hero h1 {
            font-family: var(--font-title);
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            color: #F8F7F2;
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }

        .resource-hero .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--dark-muted);
            margin: 0 0 24px;
            max-width: 520px;
        }

        .hero-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-stat-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.4;
        }

        .resource-hero-right {
            display: flex;
            justify-content: center;
            align-items: stretch;
        }

        .hero-stat-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            width: 100%;
            max-width: 320px;
            box-shadow: var(--shadow-dark);
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            overflow: hidden;
        }

        .hero-stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .hero-stat-card .stat-title {
            font-size: 14px;
            font-weight: 700;
            color: #F8F7F2;
            letter-spacing: 0.03em;
        }

        .hero-stat-card .stat-number {
            font-family: var(--font-mono);
            font-size: 44px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1;
        }

        .hero-stat-card .stat-desc {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.6;
        }

        .hero-stat-card .stat-divider {
            height: 1px;
            background: var(--dark-border);
            margin: 4px 0;
        }

        .hero-stat-card .stat-mini-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
        }

        .hero-stat-card .stat-mini-label {
            color: var(--dark-muted);
        }
        .hero-stat-card .stat-mini-value {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--brand-mint);
        }

        /* ===== 资源网格区 ===== */
        .resources-section {
            padding: 64px 0 40px;
        }

        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-orange);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--light-text);
            margin: 0 0 8px;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 600px;
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            grid-auto-flow: dense;
        }

        .resource-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            position: relative;
            grid-row: span 1;
        }

        .resource-card.tall {
            grid-row: span 2;
        }

        .resource-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-light-hover);
            border-color: rgba(255, 107, 53, 0.35);
        }

        .resource-card-gradient-bar {
            height: 5px;
            width: 100%;
            flex-shrink: 0;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .gradient-bar-1 {
            background: var(--brand-gradient);
        }
        .gradient-bar-2 {
            background: var(--green-gradient);
        }
        .gradient-bar-3 {
            background: linear-gradient(135deg, #FF6B35 0%, #FF8F70 100%);
        }
        .gradient-bar-4 {
            background: linear-gradient(135deg, #FFB800 0%, #FFD54F 100%);
        }

        .resource-card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .resource-card-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
        }

        .resource-type-badge {
            display: inline-flex;
            align-items: center;
            min-height: 24px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.04em;
            white-space: nowrap;
            line-height: 1.4;
        }

        .type-badge-orange {
            background: rgba(255, 107, 53, 0.1);
            color: #FF6B35;
            border: 1px solid rgba(255, 107, 53, 0.25);
        }
        .type-badge-green {
            background: rgba(0, 200, 150, 0.1);
            color: #00C896;
            border: 1px solid rgba(0, 200, 150, 0.25);
        }
        .type-badge-gold {
            background: rgba(255, 184, 0, 0.1);
            color: #D49300;
            border: 1px solid rgba(255, 184, 0, 0.3);
        }
        .type-badge-gray {
            background: rgba(107, 107, 114, 0.08);
            color: #6B6B72;
            border: 1px solid rgba(107, 107, 114, 0.2);
        }

        .resource-card-cover {
            width: 100%;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin: 4px 0 6px;
            background: var(--light-panel);
            flex-shrink: 0;
        }

        .resource-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .resource-card:hover .resource-card-cover img {
            transform: scale(1.04);
        }

        .resource-card.tall .resource-card-cover {
            height: 190px;
        }

        .resource-card-title {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--light-text);
            margin: 0;
        }

        .resource-card-desc {
            font-size: 14px;
            line-height: 1.65;
            color: var(--light-muted);
            margin: 0;
            flex: 1;
        }

        .resource-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--light-muted);
            flex-wrap: wrap;
            padding-top: 4px;
            border-top: 1px solid var(--light-border);
        }

        .resource-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .resource-card-meta .meta-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-green);
            display: inline-block;
            flex-shrink: 0;
        }

        .btn-resource {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            min-height: 42px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.02em;
            border: 1px solid var(--light-border);
            background: var(--light-panel);
            color: var(--light-text);
            cursor: pointer;
            transition: all 0.22s ease;
            white-space: nowrap;
            width: 100%;
            text-align: center;
        }

        .btn-resource:hover {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
            transform: translateY(-2px);
        }

        .btn-resource:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }

        .btn-resource svg {
            flex-shrink: 0;
        }

        /* ===== 标签索引区 ===== */
        .tag-index-section {
            padding: 32px 0 48px;
        }

        .tag-index-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-light);
        }

        .tag-index-card .tag-index-title {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 8px;
        }

        .tag-index-card .tag-index-desc {
            font-size: 14px;
            color: var(--light-muted);
            margin: 0 0 20px;
            line-height: 1.6;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            min-height: 38px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: var(--light-panel);
            color: var(--light-text);
            border: 1px solid var(--light-border);
            cursor: pointer;
            transition: all 0.22s ease;
            white-space: nowrap;
        }

        .tag-pill:hover {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 3px 12px rgba(255, 107, 53, 0.28);
            transform: translateY(-2px);
        }

        .tag-pill:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }

        /* ===== 简报输入区 ===== */
        .brief-section {
            padding: 32px 0 72px;
        }

        .brief-card {
            background: var(--dark-base);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .brief-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .brief-card::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .brief-card .brief-title {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0;
            position: relative;
            z-index: 1;
        }

        .brief-card .brief-desc {
            font-size: 14px;
            color: var(--dark-muted);
            margin: 0;
            line-height: 1.7;
            position: relative;
            z-index: 1;
            max-width: 500px;
        }

        .brief-form {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .brief-input {
            flex: 1;
            min-width: 200px;
            min-height: 48px;
            padding: 12px 16px;
            border-radius: var(--radius-xs);
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            color: #EDEDF2;
            font-size: 15px;
            font-family: var(--font-body);
            transition: all 0.22s ease;
        }

        .brief-input::placeholder {
            color: var(--dark-muted);
            opacity: 0.7;
        }

        .brief-input:focus {
            border-color: var(--brand-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18);
            outline: none;
        }

        .btn-brief-submit {
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: all 0.22s ease;
            box-shadow: 0 3px 12px rgba(255, 107, 53, 0.3);
            flex-shrink: 0;
            white-space: nowrap;
        }

        .btn-brief-submit:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
            color: #fff;
        }

        .btn-brief-submit:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }

        .brief-privacy-hint {
            font-size: 12px;
            color: var(--dark-muted);
            position: relative;
            z-index: 1;
            margin: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-base);
            border-top: 4px solid transparent;
            border-image: var(--brand-gradient);
            border-image-slice: 1;
            padding: 56px 0 24px;
            margin-top: 16px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo-text {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--dark-muted);
            line-height: 1.7;
            margin: 0 0 14px;
            max-width: 280px;
        }

        .footer-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-col-title {
            font-family: var(--font-title);
            font-size: 14px;
            font-weight: 700;
            color: #F8F7F2;
            letter-spacing: 0.04em;
            margin: 0 0 14px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--dark-muted);
            transition: all 0.22s ease;
            display: inline-block;
            position: relative;
        }

        .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--brand-gold);
        }

        .footer-links a:hover::after {
            width: 100%;
        }

        .footer-bottom {
            border-top: 1px solid var(--dark-border);
            padding-top: 20px;
            text-align: center;
        }

        .footer-copyright {
            font-size: 12px;
            color: #6B6B72;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .resource-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-main {
                grid-template-columns: 1.2fr 1fr 1fr;
                gap: 28px;
            }
            .footer-col:nth-child(4) {
                grid-column: span 3;
            }
        }

        @media (max-width: 1024px) {
            .resource-hero-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .resource-hero-right {
                justify-content: flex-start;
            }
            .hero-stat-card {
                max-width: 400px;
            }
            .resource-hero h1 {
                font-size: 34px;
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-col:nth-child(4) {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .brand-row {
                padding: 0 16px;
                height: 64px;
            }
            .logo-text {
                font-size: 19px;
            }
            .logo-graphic {
                width: 34px;
                height: 34px;
            }
            .btn-brand-small {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .channel-row {
                padding: 6px 16px 8px;
                gap: 6px;
            }
            .channel-tag {
                min-height: 32px;
                padding: 6px 14px;
                font-size: 12px;
            }
            .resource-hero {
                margin: 0 8px 12px;
                padding: 40px 0 32px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .resource-hero h1 {
                font-size: 30px;
            }
            .resource-hero .hero-desc {
                font-size: 15px;
            }
            .hero-stat-card .stat-number {
                font-size: 36px;
            }
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .resource-card.tall {
                grid-row: span 1;
            }
            .resource-card.tall .resource-card-cover {
                height: 160px;
            }
            .resource-card-cover {
                height: 160px;
            }
            .brief-card {
                padding: 28px 20px;
            }
            .brief-form {
                flex-direction: column;
                align-items: stretch;
            }
            .brief-input {
                min-width: 100%;
            }
            .btn-brief-submit {
                width: 100%;
                min-height: 48px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-col:nth-child(4) {
                grid-column: span 1;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .tag-index-card {
                padding: 24px 18px;
            }
            .resource-card-body {
                padding: 16px 16px 14px;
            }
        }

        @media (max-width: 640px) {
            .container-full {
                padding-left: 12px;
                padding-right: 12px;
            }
            .resource-hero h1 {
                font-size: 28px;
            }
            .resource-hero {
                padding: 32px 0 24px;
            }
            .resource-hero-inner {
                gap: 20px;
            }
            .hero-stats-row {
                gap: 14px;
            }
            .hero-stat-value {
                font-size: 24px;
            }
            .resource-card:hover {
                transform: translateY(-3px);
            }
            .tag-pill {
                min-height: 34px;
                padding: 6px 14px;
                font-size: 12px;
            }
            .brief-card .brief-title {
                font-size: 18px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .breadcrumb-nav {
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --dark-base: #17171C;
            --dark-card: #1E1E28;
            --dark-border: #2F2F38;
            --dark-text: #EDEDF2;
            --dark-muted: #A3A3AD;
            --light-panel: #F7F6F2;
            --light-card: #FFFFFF;
            --light-border: #E4E3DE;
            --light-text: #1E1E24;
            --light-muted: #6B6B72;
            --brand-orange: #FF6B35;
            --brand-gold: #FFB800;
            --brand-green: #00C896;
            --brand-mint: #7CD6B5;
            --danger: #FF4D4F;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 10px;
            --radius-pill: 999px;
            --shadow-light: 0 2px 8px rgba(30, 30, 36, 0.06), 0 8px 24px rgba(30, 30, 36, 0.06);
            --shadow-light-hover: 0 6px 16px rgba(30, 30, 36, 0.10), 0 14px 36px rgba(30, 30, 36, 0.12);
            --shadow-dark: 0 4px 16px rgba(0, 0, 0, 0.32);
            --shadow-dark-hover: 0 8px 24px rgba(0, 0, 0, 0.45);
            --brand-gradient: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.12) 0%, rgba(255, 184, 0, 0.12) 100%);
            --green-gradient: linear-gradient(135deg, #00C896 0%, #7CD6B5 100%);
            --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', 'SF Mono', 'Consolas', monospace;
            --container-max: 1240px;
            --section-pad-desktop: 96px;
            --section-pad-mobile: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background-color: var(--light-panel);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, opacity 0.22s ease;
        }

        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            border-radius: var(--radius-xs);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-body);
        }

        .container-full {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--dark-base);
            transition: all 0.3s ease;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.28);
        }

        .site-header.scrolled .brand-row {
            height: 56px;
        }

        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height 0.3s ease;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-graphic {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            position: relative;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .logo-graphic::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.9);
            opacity: 0.85;
        }

        .logo-graphic::after {
            content: '';
            position: absolute;
            bottom: 7px;
            right: 7px;
            width: 16px;
            height: 10px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 0.8;
        }

        .logo-text {
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: filter 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-width: 44px;
            white-space: nowrap;
        }

        .btn-primary-sm:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }

        .btn-primary-sm:active {
            filter: brightness(0.95);
            transform: translateY(1px);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-xs);
            cursor: pointer;
            position: relative;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease;
        }

        .menu-toggle span {
            position: absolute;
            width: 20px;
            height: 2px;
            background: #F8F7F2;
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .menu-toggle span:nth-child(1) {
            transform: translateY(-5px);
        }

        .menu-toggle span:nth-child(2) {
            transform: translateY(5px);
        }

        .menu-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(0, 0);
        }

        .menu-toggle.open span:nth-child(2) {
            transform: rotate(-45deg) translate(0, 0);
        }

        .menu-toggle:hover {
            background-color: var(--dark-border);
        }

        /* 频道行 */
        .channel-row {
            height: 48px;
            background-color: rgba(23, 23, 28, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            height: 32px;
            padding: 0 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
            border: 1px solid transparent;
            min-height: 32px;
        }

        .channel-tag:not(.active) {
            background-color: transparent;
            border-color: var(--dark-border);
            color: var(--dark-muted);
        }

        .channel-tag:not(.active):hover {
            background: var(--brand-gradient-soft);
            color: #F8F7F2;
            border-color: rgba(255, 107, 53, 0.4);
        }

        .channel-tag.active {
            background: var(--brand-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background-color: var(--light-panel);
            padding: 16px 0;
            border-bottom: 1px solid var(--light-border);
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--light-muted);
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--light-border);
            margin-left: 4px;
            font-size: 12px;
        }

        .breadcrumb a {
            color: var(--light-muted);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--brand-orange);
        }

        .breadcrumb .current {
            color: var(--light-text);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .comparison-hero {
            background-color: var(--dark-base);
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                radial-gradient(circle at 78% 30%, rgba(255, 107, 53, 0.18) 0%, transparent 45%),
                radial-gradient(circle at 25% 75%, rgba(255, 184, 0, 0.12) 0%, transparent 40%);
            background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
            background-position: center, center, center, center;
            padding: 72px 0 80px;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid;
            border-image: var(--brand-gradient) 1;
        }

        .comparison-hero .hero-inner {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 48px;
            align-items: center;
        }

        .hero-copy h1 {
            font-family: var(--font-title);
            font-size: 44px;
            line-height: 1.18;
            font-weight: 800;
            color: #F8F7F2;
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }

        .hero-copy .hero-sub {
            font-size: 17px;
            line-height: 1.75;
            color: var(--dark-muted);
            margin: 0 0 24px;
            max-width: 520px;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-stat-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 18px;
            box-shadow: var(--shadow-dark);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .hero-stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-dark-hover);
        }

        .hero-stat-num {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 800;
            color: #F8F7F2;
            line-height: 1.1;
            white-space: nowrap;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--dark-muted);
            letter-spacing: 0.04em;
            font-weight: 600;
            text-transform: uppercase;
        }

        .hero-stat-desc {
            font-size: 15px;
            color: var(--dark-text);
            line-height: 1.5;
        }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 26px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
            line-height: 1;
        }

        .badge-gradient {
            background: var(--brand-gradient);
            color: #fff;
        }

        .badge-dark-outline {
            background: var(--dark-card);
            color: #EDEDF2;
            border: 1px solid var(--dark-border);
        }

        .badge-light-outline {
            background: var(--light-card);
            color: var(--light-text);
            border: 1px solid var(--light-border);
        }

        .badge-green {
            background: var(--green-gradient);
            color: #fff;
        }

        .badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }

        .badge-dot.green {
            background: var(--brand-green);
        }

        .badge-dot.orange {
            background: var(--brand-orange);
        }

        .badge-dot.gold {
            background: var(--brand-gold);
        }

        .badge-dot.red {
            background: var(--danger);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            transition: filter 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
            white-space: nowrap;
            min-width: 44px;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.38);
        }

        .btn-primary:active {
            filter: brightness(0.95);
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.2);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #F8F7F2;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: background-color 0.22s ease, border-color 0.22s ease, color 0.22s ease, transform 0.22s ease;
            white-space: nowrap;
            min-width: 44px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-1px);
        }

        .btn-outline-light:active {
            transform: translateY(1px);
        }

        .btn-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-orange);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 4px 0;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .btn-link-arrow:hover {
            color: var(--brand-gold);
            gap: 10px;
        }

        .btn-link-arrow svg {
            transition: transform 0.2s ease;
        }

        .btn-link-arrow:hover svg {
            transform: translateX(3px);
        }

        /* ===== 对比表区 ===== */
        .comparison-section {
            padding: var(--section-pad-desktop) 0;
            background-color: var(--light-panel);
            background-image: radial-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 12px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }

        .section-header .section-sub {
            font-size: 16px;
            color: var(--light-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 640px;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            position: relative;
        }

        .comparison-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-light-hover);
        }

        .comparison-card.recommended {
            border: 2px solid transparent;
            background-image: linear-gradient(var(--light-card), var(--light-card)), var(--brand-gradient);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.15);
            position: relative;
        }

        .comparison-card.recommended::before {
            content: '推荐';
            position: absolute;
            top: 16px;
            right: 16px;
            z-index: 2;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.06em;
        }

        .comparison-card-top {
            padding: 24px 28px 20px;
            border-bottom: 1px solid var(--light-border);
        }

        .comparison-card-top .card-name {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 6px;
            letter-spacing: 0.01em;
        }

        .comparison-card-top .card-price {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--brand-orange);
            line-height: 1.1;
        }

        .comparison-card-top .card-price-note {
            font-size: 13px;
            color: var(--light-muted);
            margin-top: 4px;
        }

        .comparison-card-body {
            padding: 20px 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .comparison-row {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--light-text);
            line-height: 1.5;
        }

        .comparison-row svg {
            flex-shrink: 0;
            margin-top: 2px;
        }

        .comparison-row.text-muted {
            color: var(--light-muted);
        }

        .comparison-card-footer {
            padding: 18px 28px 24px;
            border-top: 1px solid var(--light-border);
        }

        /* ===== 附加指标条 ===== */
        .metrics-strip-section {
            padding: var(--section-pad-desktop) 0;
            background-color: var(--dark-base);
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .metrics-strip-section .section-header h2 {
            color: #F8F7F2;
        }

        .metrics-strip-section .section-header .section-sub {
            color: var(--dark-muted);
        }

        .metrics-strip-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .metric-strip-item {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: 160px 1fr 80px;
            gap: 20px;
            align-items: center;
            box-shadow: var(--shadow-dark);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .metric-strip-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-dark-hover);
        }

        .metric-strip-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark-text);
            letter-spacing: 0.03em;
        }

        .metric-bar-track {
            height: 10px;
            background: var(--dark-border);
            border-radius: var(--radius-pill);
            overflow: hidden;
            position: relative;
        }

        .metric-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            background: var(--brand-gradient);
            transition: width 0.6s ease;
        }

        .metric-bar-fill.green {
            background: var(--green-gradient);
        }

        .metric-strip-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: #F8F7F2;
            text-align: right;
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--section-pad-desktop) 0;
            background-color: var(--light-panel);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .faq-item.active {
            border-left: 4px solid var(--brand-orange);
            box-shadow: var(--shadow-light);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 600;
            color: var(--light-text);
            text-align: left;
            transition: background-color 0.2s ease;
            min-height: 52px;
        }

        .faq-question:hover {
            background-color: rgba(255, 107, 53, 0.04);
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--light-border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
            font-size: 18px;
            line-height: 1;
            color: var(--light-muted);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-gradient);
            border-color: transparent;
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--light-muted);
        }

        /* ===== CTA 行 ===== */
        .cta-row-section {
            padding: 56px 0 72px;
            background-color: var(--light-panel);
        }

        .cta-row-inner {
            background: var(--dark-base);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-dark);
            background-image: radial-gradient(circle at 85% 20%, rgba(255, 107, 53, 0.15) 0%, transparent 50%);
        }

        .cta-row-inner h3 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 700;
            color: #F8F7F2;
            margin: 0;
            letter-spacing: 0.01em;
        }

        .cta-row-inner p {
            font-size: 15px;
            color: var(--dark-muted);
            margin: 4px 0 0;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background-color: var(--dark-base);
            border-top: 4px solid;
            border-image: var(--brand-gradient) 1;
            padding-top: 48px;
            margin-top: 0;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-text {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F8F7F2;
            letter-spacing: 0.03em;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--dark-muted);
            margin: 0;
            max-width: 280px;
        }

        .footer-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-col-title {
            font-family: var(--font-title);
            font-size: 14px;
            font-weight: 700;
            color: #F8F7F2;
            letter-spacing: 0.06em;
            margin: 0 0 16px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links li a {
            font-size: 14px;
            color: var(--dark-muted);
            transition: color 0.2s ease, padding-left 0.2s ease;
            display: inline-block;
        }

        .footer-links li a:hover {
            color: var(--brand-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--dark-border);
            padding: 20px 0 24px;
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--dark-muted);
            margin: 0;
            text-align: center;
            letter-spacing: 0.02em;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .comparison-hero .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-copy h1 {
                font-size: 36px;
            }

            .comparison-grid {
                grid-template-columns: 1fr 1fr;
            }

            .comparison-card.recommended {
                grid-column: span 1;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
            }

            .metric-strip-item {
                grid-template-columns: 120px 1fr 70px;
            }
        }

        @media (max-width: 768px) {
            .brand-row {
                height: 64px;
                padding: 0 16px;
            }

            .logo-text {
                font-size: 19px;
            }

            .logo-graphic {
                width: 34px;
                height: 34px;
            }

            .hero-copy h1 {
                font-size: 32px;
            }

            .comparison-hero {
                padding: 48px 0 56px;
            }

            .comparison-section,
            .metrics-strip-section,
            .faq-section {
                padding: var(--section-pad-mobile) 0;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
            }

            .comparison-card.recommended {
                order: -1;
            }

            .metric-strip-item {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .metric-strip-value {
                text-align: left;
            }

            .cta-row-inner {
                padding: 36px 28px;
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .channel-row {
                padding: 0 16px;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 640px) {
            .brand-actions .btn-primary-sm {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .brand-row {
                height: 60px;
            }

            .comparison-hero {
                padding: 40px 0 48px;
            }

            .hero-copy h1 {
                font-size: 30px;
            }

            .hero-stat-card {
                padding: 18px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .hero-stat-num {
                font-size: 32px;
            }

            .comparison-card-top,
            .comparison-card-body,
            .comparison-card-footer {
                padding-left: 20px;
                padding-right: 20px;
            }

            .container-full {
                padding-left: 16px;
                padding-right: 16px;
            }

            .btn-primary {
                height: 46px;
            }
        }

        @media (min-width: 641px) {
            .menu-toggle {
                display: none;
            }
        }

        @media (min-width: 1201px) {
            .container-full {
                padding-left: 32px;
                padding-right: 32px;
            }
        }