/* roulang page: index */
/* ==================== DESIGN TOKENS ==================== */
    :root {
        /* 主色 */
        --color-ink: #1A1C22;
        --color-ink-soft: #26282E;
        --color-ink-deep: #131418;
        --color-rose: #F43E5C;
        --color-rose-hover: #D93650;
        --color-rose-focus: rgba(244, 62, 92, 0.3);
        --color-teal: #31C6A4;
        --color-teal-soft: rgba(49, 198, 164, 0.12);
        --color-amber: #F6A723;
        --color-amber-soft: rgba(246, 167, 35, 0.15);
        --color-paper: #F7F5F2;
        --color-white: #FFFFFF;
        --color-text: #1A1C22;
        --color-text-muted: #6B6B70;
        --color-text-light: #A9A9AE;
        --color-text-on-dark: #F5F3EF;
        --color-border: #E5E1DC;
        --color-border-dark: #3A3C44;
        /* 圆角 */
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-pill: 999px;
        /* 阴影 */
        --shadow-card: 0 8px 24px rgba(26, 28, 34, 0.06);
        --shadow-card-hover: 0 16px 36px rgba(26, 28, 34, 0.12);
        --shadow-btn-rose: 0 6px 16px rgba(244, 62, 92, 0.28);
        --shadow-card-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
        /* 间距 */
        --space-1: 4px;
        --space-2: 8px;
        --space-3: 16px;
        --space-4: 20px;
        --space-5: 28px;
        --space-6: 40px;
        --space-7: 56px;
        --space-8: 72px;
        /* 字体 */
        --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        /* 过渡 */
        --transition-fast: 0.18s ease;
        --transition-base: 0.28s ease;
        --transition-slow: 0.4s ease;
    }

    /* ==================== RESET / BASE ==================== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

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

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.85;
        color: var(--color-text);
        background-color: var(--color-paper);
        margin: 0;
        padding: 0;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    a {
        color: var(--color-ink);
        text-decoration: none;
        transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
    }

    a:hover,
    a:focus {
        text-decoration: none;
        color: var(--color-rose);
    }

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

    button,
    input,
    textarea,
    select {
        font-family: var(--font-sans);
        font-size: 15px;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-display);
        font-weight: 700;
        line-height: 1.3;
        color: var(--color-ink);
        margin-top: 0;
    }

    h1 {
        font-size: clamp(28px, 4.5vw, 48px);
        font-weight: 800;
        letter-spacing: -0.02em;
    }

    h2 {
        font-size: clamp(22px, 3.2vw, 30px);
        font-weight: 700;
        letter-spacing: -0.015em;
    }

    h3 {
        font-size: clamp(17px, 2.2vw, 20px);
        font-weight: 700;
    }

    p {
        margin-top: 0;
        margin-bottom: var(--space-3);
    }

    ul, ol {
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .container-wide {
        max-width: 1320px;
        margin: 0 auto;
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    /* ==================== SECTION BASE ==================== */
    section {
        padding-top: var(--space-7);
        padding-bottom: var(--space-7);
    }

    .section--paper {
        background-color: var(--color-paper);
    }

    .section--white {
        background-color: var(--color-white);
    }

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

    .section--ink h2,
    .section--ink h3,
    .section--ink p {
        color: var(--color-text-on-dark);
    }

    .section-title-row {
        max-width: 760px;
        margin-bottom: var(--space-6);
    }

    .section-title-row h2 {
        margin-bottom: var(--space-3);
    }

    .section-title-row p {
        color: var(--color-text-muted);
        font-size: 16px;
        line-height: 1.85;
        margin-bottom: 0;
    }

    .section--ink .section-title-row p {
        color: var(--color-text-light);
    }

    .title-tag {
        display: inline-flex;
        align-items: center;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--color-rose);
        margin-bottom: var(--space-3);
        gap: var(--space-2);
    }

    .title-tag::before {
        content: '';
        display: inline-block;
        width: 24px;
        height: 2px;
        background-color: var(--color-rose);
        border-radius: 2px;
    }

    /* ==================== HEADER / NAV ==================== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background-color: rgba(255, 255, 255, 0.97);
        border-bottom: 1px solid var(--color-border);
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
    }

    .site-header.scrolled {
        box-shadow: 0 4px 20px rgba(26, 28, 34, 0.08);
        border-bottom-color: rgba(244, 62, 92, 0.3);
    }

    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .brand-logo {
        display: flex;
        align-items: flex-end;
        gap: 6px;
        line-height: 1;
        flex-shrink: 0;
    }

    .brand-logo .brand-zh {
        font-size: 20px;
        font-weight: 800;
        color: var(--color-ink);
        letter-spacing: -0.01em;
        line-height: 1.2;
    }

    .brand-logo .brand-zh span {
        color: var(--color-rose);
    }

    .brand-logo .brand-en {
        font-size: 9px;
        font-weight: 700;
        letter-spacing: 0.22em;
        color: var(--color-text-muted);
        text-transform: uppercase;
        margin-left: 2px;
        padding-bottom: 2px;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        flex: 1;
        justify-content: center;
        flex-wrap: wrap;
    }

    .nav-menu a {
        padding: 8px 14px;
        font-size: 14px;
        font-weight: 500;
        color: var(--color-text);
        border-radius: var(--radius-pill);
        transition: all var(--transition-fast);
        white-space: nowrap;
    }

    .nav-menu a:hover {
        color: var(--color-rose);
        background-color: var(--color-paper);
    }

    .nav-menu a.active {
        color: var(--color-rose);
        font-weight: 600;
    }

    .nav-right {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        flex-shrink: 0;
    }

    .badge-countdown {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        background-color: var(--color-amber);
        color: var(--color-ink);
        font-size: 12px;
        font-weight: 700;
        padding: 6px 12px;
        border-radius: var(--radius-pill);
        height: 32px;
        letter-spacing: 0.02em;
        white-space: nowrap;
    }

    .badge-status {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        background-color: var(--color-teal);
        color: var(--color-ink);
        font-size: 12px;
        font-weight: 600;
        padding: 6px 12px;
        border-radius: var(--radius-pill);
        height: 32px;
        white-space: nowrap;
    }

    .badge-status::before {
        content: '';
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background-color: var(--color-white);
        animation: pulse-dot 1.6s infinite;
    }

    @keyframes pulse-dot {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.4; }
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-pill);
        border: none;
        cursor: pointer;
        text-align: center;
        white-space: nowrap;
        transition: all var(--transition-base);
        line-height: 1.4;
        text-decoration: none;
    }

    .btn-primary {
        background-color: var(--color-rose);
        color: #FFFFFF;
        box-shadow: var(--shadow-btn-rose);
        border: 2px solid var(--color-rose);
    }

    .btn-primary:hover {
        background-color: var(--color-rose-hover);
        border-color: var(--color-rose-hover);
        color: #FFFFFF;
        transform: translateY(-2px);
        box-shadow: 0 10px 22px rgba(244, 62, 92, 0.35);
    }

    .btn-primary:focus-visible {
        outline: 3px solid var(--color-rose-focus);
        outline-offset: 3px;
    }

    .btn-secondary {
        background-color: transparent;
        color: var(--color-ink);
        border: 2px solid var(--color-ink);
    }

    .btn-secondary:hover {
        background-color: var(--color-ink);
        color: #FFFFFF;
        transform: translateY(-2px);
    }

    .btn-secondary:focus-visible {
        outline: 3px solid rgba(26, 28, 34, 0.25);
        outline-offset: 3px;
    }

    .btn-text {
        background: none;
        border: none;
        padding: 6px 4px;
        color: var(--color-ink);
        font-weight: 600;
        font-size: 14px;
        border-bottom: 2px solid var(--color-teal);
        transition: all var(--transition-fast);
        cursor: pointer;
    }

    .btn-text:hover {
        color: var(--color-rose);
        border-bottom-color: var(--color-rose);
    }

    .btn-sm {
        padding: 9px 18px;
        font-size: 13px;
    }

    .btn-lg {
        padding: 14px 34px;
        font-size: 16px;
    }

    .nav-toggle {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        color: var(--color-ink);
        font-size: 22px;
    }

    /* 移动端导航抽屉 */
    .mobile-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 16px 32px rgba(26, 28, 34, 0.1);
        z-index: 999;
        padding: var(--space-4);
        flex-direction: column;
        gap: var(--space-2);
    }

    .mobile-menu.open {
        display: flex;
    }

    .mobile-menu a {
        padding: 12px 16px;
        font-size: 16px;
        font-weight: 500;
        border-radius: var(--radius-sm);
        color: var(--color-text);
    }

    .mobile-menu a:hover {
        background-color: var(--color-paper);
        color: var(--color-rose);
    }

    /* ==================== HERO SECTION ==================== */
    .hero {
        position: relative;
        min-height: auto;
        padding-top: var(--space-7);
        padding-bottom: var(--space-7);
        background-color: var(--color-ink);
        background-image: url('/assets/images/c1a8b64d877195ae.jpg');
        background-size: cover;
        background-position: center;
        color: var(--color-text-on-dark);
        overflow: hidden;
    }

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26, 28, 34, 0.82) 0%, rgba(26, 28, 34, 0.65) 40%, rgba(26, 28, 34, 0.78) 100%);
        z-index: 1;
    }

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

    .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: var(--space-7);
        align-items: center;
    }

    .hero h1 {
        color: #FFFFFF;
        margin-bottom: var(--space-4);
        max-width: 620px;
    }

    .hero-sub {
        color: rgba(255, 255, 255, 0.82);
        font-size: 17px;
        line-height: 1.9;
        max-width: 560px;
        margin-bottom: var(--space-5);
    }

    .hero-cta {
        display: flex;
        gap: var(--space-3);
        flex-wrap: wrap;
        margin-bottom: var(--space-5);
    }

    .hero-cta .btn-secondary {
        border-color: rgba(255, 255, 255, 0.6);
        color: #FFFFFF;
    }

    .hero-cta .btn-secondary:hover {
        background-color: #FFFFFF;
        color: var(--color-ink);
        border-color: #FFFFFF;
    }

    .hero-before-after {
        display: flex;
        gap: var(--space-3);
        margin-top: var(--space-2);
        flex-wrap: wrap;
    }

    .ba-chip {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 600;
        padding: 7px 14px;
        border-radius: var(--radius-pill);
        background-color: rgba(255, 255, 255, 0.1);
        color: rgba(255, 255, 255, 0.75);
        border: 1px solid rgba(255, 255, 255, 0.18);
    }

    .ba-chip.ba-better {
        background-color: var(--color-teal-soft);
        border-color: rgba(49, 198, 164, 0.4);
        color: var(--color-teal);
    }

    .hero-kpi-panel {
        background-color: rgba(19, 20, 24, 0.85);
        border: 1px solid var(--color-border-dark);
        border-radius: var(--radius-md);
        padding: var(--space-5);
        box-shadow: var(--shadow-card-dark);
        backdrop-filter: blur(8px);
    }

    .hero-kpi-panel h3 {
        color: rgba(255, 255, 255, 0.6);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        margin-bottom: var(--space-4);
    }

    .kpi-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .kpi-item {
        padding: var(--space-3);
        background-color: rgba(255, 255, 255, 0.04);
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255, 255, 255, 0.06);
    }

    .kpi-item .kpi-value {
        font-size: clamp(28px, 4vw, 42px);
        font-weight: 800;
        color: var(--color-teal);
        line-height: 1.1;
        letter-spacing: -0.02em;
    }

    .kpi-item .kpi-label {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.55);
        margin-top: var(--space-2);
        line-height: 1.5;
    }

    /* ==================== REAL-TIME STRIP ==================== */
    .realtime-strip {
        background-color: var(--color-ink-soft);
        padding-top: var(--space-4);
        padding-bottom: var(--space-4);
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .realtime-strip .container {
        display: flex;
        align-items: center;
        gap: var(--space-4);
        flex-wrap: wrap;
    }

    .realtime-title {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    .realtime-title .badge-status {
        height: 28px;
        font-size: 11px;
        padding: 4px 12px;
    }

    .realtime-title h2 {
        font-size: 15px;
        margin: 0;
        color: #FFFFFF;
        font-weight: 700;
    }

    .realtime-metrics {
        display: flex;
        gap: var(--space-5);
        flex: 1;
        justify-content: flex-end;
        flex-wrap: wrap;
    }

    .realtime-metrics .rm-item {
        text-align: center;
    }

    .realtime-metrics .rm-value {
        font-size: 20px;
        font-weight: 800;
        color: var(--color-teal);
        line-height: 1.2;
    }

    .realtime-metrics .rm-label {
        font-size: 11px;
        color: rgba(255, 255, 255, 0.5);
        margin-top: 4px;
    }

    /* ==================== SERVICE MATRIX ==================== */
    .service-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-5);
    }

    .service-card {
        position: relative;
        background-color: var(--color-white);
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
    }

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

    .service-card .card-img {
        height: 160px;
        overflow: hidden;
        background-color: var(--color-paper);
    }

    .service-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition-slow);
    }

    .service-card:hover .card-img img {
        transform: scale(1.05);
    }

    .service-card .card-body {
        padding: var(--space-4);
        position: relative;
    }

    .service-card .card-body::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 3px;
        background-color: var(--color-rose);
        border-radius: 0 3px 3px 0;
    }

    .service-card h3 {
        font-size: 18px;
        margin-bottom: var(--space-2);
    }

    .service-card p {
        font-size: 14px;
        color: var(--color-text-muted);
        margin-bottom: var(--space-3);
        line-height: 1.7;
    }

    .service-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--space-2);
        flex-wrap: wrap;
    }

    .service-card .status-dot {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 600;
        color: var(--color-teal);
    }

    .service-card .status-dot::before {
        content: '';
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: var(--color-teal);
    }

    .service-card .data-badge {
        font-size: 12px;
        font-weight: 700;
        color: var(--color-ink);
        background-color: var(--color-paper);
        padding: 4px 12px;
        border-radius: var(--radius-pill);
    }

    /* ==================== CATEGORY WALL ==================== */
    .category-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-5);
    }

    .category-card {
        position: relative;
        border-radius: var(--radius-md);
        overflow: hidden;
        cursor: pointer;
        background-color: var(--color-ink);
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
        min-height: 220px;
        display: flex;
        align-items: flex-end;
    }

    .category-card:hover {
        box-shadow: var(--shadow-card-hover);
    }

    .category-card .cat-bg {
        position: absolute;
        inset: 0;
    }

    .category-card .cat-bg img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.7;
        transition: opacity var(--transition-slow), transform var(--transition-slow);
    }

    .category-card:hover .cat-bg img {
        opacity: 0.85;
        transform: scale(1.04);
    }

    .category-card .cat-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(26, 28, 34, 0.9) 0%, rgba(26, 28, 34, 0.35) 60%, transparent 100%);
    }

    .category-card .cat-content {
        position: relative;
        z-index: 2;
        padding: var(--space-4);
        width: 100%;
        color: #FFFFFF;
    }

    .category-card .cat-tag {
        display: inline-block;
        font-size: 11px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: var(--radius-pill);
        background-color: var(--color-rose);
        color: #FFFFFF;
        margin-bottom: var(--space-2);
    }

    .category-card h3 {
        color: #FFFFFF;
        font-size: 18px;
        margin-bottom: var(--space-1);
    }

    .category-card p {
        color: rgba(255, 255, 255, 0.75);
        font-size: 13px;
        margin-bottom: 0;
    }

    /* ==================== COMPARISON SECTION ==================== */
    .compare-wrapper {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-5);
        align-items: stretch;
    }

    .compare-panel {
        border-radius: var(--radius-md);
        padding: var(--space-5);
        border: 1px solid var(--color-border);
        background-color: var(--color-white);
    }

    .compare-panel.compare-traditional {
        background-color: #ECEAE7;
        border-color: #D9D5D0;
    }

    .compare-panel.compare-best {
        background-color: var(--color-white);
        border: 2px solid var(--color-rose);
        box-shadow: var(--shadow-card);
    }

    .compare-panel h3 {
        font-size: 18px;
        margin-bottom: var(--space-4);
        display: flex;
        align-items: center;
        gap: var(--space-2);
    }

    .compare-panel.compare-best h3 {
        color: var(--color-rose);
    }

    .compare-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        font-size: 14px;
    }

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

    .compare-row .label {
        font-weight: 600;
        color: var(--color-text-muted);
        flex-shrink: 0;
        margin-right: var(--space-3);
    }

    .compare-row .value {
        font-weight: 600;
        text-align: right;
    }

    .compare-row .value.good {
        color: var(--color-teal);
    }

    .compare-row .value.bad {
        color: var(--color-text-muted);
    }

    .compare-panel.compare-best .compare-row {
        border-bottom-color: rgba(244, 62, 92, 0.08);
    }

    /* ==================== SELECTED LIST ==================== */
    .selected-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-5);
        align-items: center;
    }

    .selected-hero-img {
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        min-height: 340px;
        background-color: var(--color-ink);
    }

    .selected-hero-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .selected-list {
        display: flex;
        flex-direction: column;
        gap: var(--space-3);
    }

    .selected-item {
        display: flex;
        align-items: flex-start;
        gap: var(--space-3);
        padding: var(--space-3) var(--space-4);
        background-color: var(--color-white);
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        box-shadow: 0 2px 8px rgba(26, 28, 34, 0.04);
        transition: all var(--transition-base);
    }

    .selected-item:hover {
        border-color: var(--color-rose);
        box-shadow: var(--shadow-card-hover);
        transform: translateX(4px);
    }

    .selected-item .sel-num {
        font-size: 22px;
        font-weight: 800;
        color: var(--color-rose);
        line-height: 1;
        flex-shrink: 0;
        min-width: 32px;
    }

    .selected-item .sel-text h4 {
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 4px;
        color: var(--color-text);
    }

    .selected-item .sel-text p {
        font-size: 13px;
        color: var(--color-text-muted);
        margin-bottom: 0;
    }

    /* ==================== TIMELINE ==================== */
    .timeline-track {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
        position: relative;
    }

    .timeline-track::before {
        content: '';
        position: absolute;
        top: 30px;
        left: 8%;
        right: 8%;
        height: 2px;
        background-color: var(--color-border);
        z-index: 0;
    }

    .timeline-node {
        position: relative;
        z-index: 1;
        text-align: center;
    }

    .timeline-node .tl-dot {
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background-color: var(--color-teal);
        border: 3px solid var(--color-white);
        box-shadow: 0 0 0 2px var(--color-teal);
        margin: 0 auto 16px;
    }

    .timeline-node .tl-dot.pending {
        background-color: var(--color-border);
        box-shadow: 0 0 0 2px var(--color-border);
    }

    .timeline-node .tl-img {
        width: 200px;
        height: 140px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        margin: 0 auto var(--space-3);
        background-color: var(--color-ink);
    }

    .timeline-node .tl-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .timeline-node h4 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 6px;
    }

    .timeline-node p {
        font-size: 13px;
        color: var(--color-text-muted);
        margin-bottom: 0;
    }

    /* ==================== NEWS LIST ==================== */
    .news-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-5);
    }

    .news-card {
        background-color: var(--color-white);
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
        display: flex;
        flex-direction: column;
    }

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

    .news-card .news-img {
        height: 150px;
        overflow: hidden;
        background-color: var(--color-ink);
    }

    .news-card .news-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .news-card .news-body {
        padding: var(--space-4);
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .news-card .news-tag {
        display: inline-flex;
        font-size: 11px;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: var(--radius-pill);
        background-color: var(--color-teal-soft);
        color: var(--color-teal);
        margin-bottom: var(--space-2);
        align-self: flex-start;
    }

    .news-card h3 {
        font-size: 15px;
        font-weight: 700;
        margin-bottom: var(--space-2);
        line-height: 1.5;
    }

    .news-card p {
        font-size: 13px;
        color: var(--color-text-muted);
        line-height: 1.7;
        margin-bottom: var(--space-3);
        flex: 1;
    }

    .news-card .news-meta {
        font-size: 11px;
        color: var(--color-text-light);
        display: flex;
        gap: var(--space-3);
    }

    /* ==================== RANKING SECTION ==================== */
    .ranking-list {
        display: flex;
        flex-direction: column;
        gap: var(--space-3);
    }

    .ranking-item {
        display: flex;
        align-items: center;
        gap: var(--space-4);
        padding: var(--space-3) var(--space-4);
        background-color: var(--color-white);
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        box-shadow: 0 2px 6px rgba(26, 28, 34, 0.04);
        transition: all var(--transition-base);
    }

    .ranking-item:hover {
        border-color: var(--color-rose);
        transform: translateX(4px);
    }

    .ranking-item .rank-num {
        font-size: 26px;
        font-weight: 800;
        min-width: 40px;
        text-align: center;
        color: var(--color-text-muted);
        flex-shrink: 0;
    }

    .ranking-item.top-1 .rank-num,
    .ranking-item.top-2 .rank-num,
    .ranking-item.top-3 .rank-num {
        color: var(--color-amber);
    }

    .ranking-item .rank-info {
        flex: 1;
    }

    .ranking-item .rank-info h3 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 4px;
    }

    .ranking-item .rank-info p {
        font-size: 13px;
        color: var(--color-text-muted);
        margin-bottom: 0;
    }

    .ranking-item .rank-trend {
        font-size: 13px;
        font-weight: 700;
        color: var(--color-teal);
        flex-shrink: 0;
    }

    /* ==================== GUARANTEE SECTION ==================== */
    .guarantee-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
    }

    .guarantee-item {
        padding: var(--space-4);
        background-color: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-md);
    }

    .guarantee-item .g-num {
        font-size: 26px;
        font-weight: 800;
        color: var(--color-rose);
        margin-bottom: var(--space-2);
    }

    .guarantee-item h3 {
        font-size: 16px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: var(--space-2);
    }

    .guarantee-item p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        margin-bottom: 0;
        line-height: 1.7;
    }

    /* ==================== RESOURCE CENTER ==================== */
    .resource-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }

    .resource-item {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        padding: var(--space-4);
        background-color: var(--color-white);
        border-radius: var(--radius-sm);
        border: 1px solid var(--color-border);
        transition: all var(--transition-base);
    }

    .resource-item:hover {
        border-color: var(--color-rose);
        box-shadow: var(--shadow-card);
    }

    .resource-item .r-icon {
        width: 42px;
        height: 42px;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        flex-shrink: 0;
        background-color: var(--color-teal-soft);
        color: var(--color-teal);
    }

    .resource-item h3 {
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 2px;
    }

    .resource-item p {
        font-size: 12px;
        color: var(--color-text-muted);
        margin-bottom: 0;
    }

    /* ==================== FAQ ACCORDION ==================== */
    .faq-wrapper {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-wrapper .accordion {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .faq-wrapper .accordion-item {
        background-color: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        margin-bottom: var(--space-3);
        overflow: hidden;
        transition: all var(--transition-base);
        position: relative;
    }

    .faq-wrapper .accordion-item:hover {
        border-color: var(--color-rose);
    }

    .faq-wrapper .accordion-item.is-active {
        background-color: #FAF9F7;
        border-left: 3px solid var(--color-rose);
    }

    .faq-wrapper .accordion-title {
        display: block;
        padding: var(--space-4);
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text);
        cursor: pointer;
        position: relative;
        padding-right: 48px;
    }

    .faq-wrapper .accordion-title::after {
        content: '+';
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 22px;
        font-weight: 400;
        color: var(--color-rose);
        transition: transform var(--transition-base);
    }

    .faq-wrapper .accordion-item.is-active .accordion-title::after {
        content: '−';
        transform: translateY(-50%) rotate(0deg);
    }

    .faq-wrapper .accordion-content {
        padding: 0 var(--space-4) var(--space-4);
        font-size: 15px;
        color: var(--color-text-muted);
        line-height: 1.8;
        display: none;
    }

    .faq-wrapper .accordion-item.is-active .accordion-content {
        display: block;
    }

    /* ==================== CONVERSION FORM ==================== */
    .form-section-grid {
        display: grid;
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-6);
        align-items: stretch;
    }

    .form-panel {
        background-color: var(--color-white);
        border-radius: var(--radius-md);
        padding: var(--space-5);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-card);
    }

    .form-panel h2 {
        font-size: 24px;
        margin-bottom: var(--space-2);
    }

    .form-panel .form-note {
        font-size: 13px;
        color: var(--color-text-muted);
        margin-bottom: var(--space-4);
    }

    .form-field {
        margin-bottom: var(--space-4);
    }

    .form-field label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 6px;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
        width: 100%;
        padding: 12px 16px;
        border: 1.5px solid #D6D2CC;
        border-radius: var(--radius-sm);
        font-size: 15px;
        background-color: var(--color-white);
        transition: all var(--transition-fast);
        color: var(--color-text);
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
        border-color: var(--color-rose);
        outline: none;
        box-shadow: 0 0 0 3px var(--color-rose-focus);
    }

    .form-submit-row {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        flex-wrap: wrap;
    }

    .form-submit-row .btn-primary {
        width: auto;
    }

    .form-submit-note {
        font-size: 12px;
        color: var(--color-text-light);
    }

    .form-data-band {
        background-color: var(--color-ink);
        border-radius: var(--radius-md);
        padding: var(--space-5);
        color: #FFFFFF;
        display: flex;
        flex-direction: column;
        justify-content: center;
        background-image: url('/assets/images/3737db310326bd14.webp');
        background-size: cover;
        background-position: center;
        position: relative;
        overflow: hidden;
    }

    .form-data-band::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26, 28, 34, 0.88) 0%, rgba(26, 28, 34, 0.7) 100%);
        z-index: 0;
    }

    .form-data-band > * {
        position: relative;
        z-index: 1;
    }

    .form-data-band h3 {
        color: #FFFFFF;
        font-size: 20px;
        margin-bottom: var(--space-4);
    }

    .form-data-band .fd-stats {
        display: flex;
        gap: var(--space-5);
        flex-wrap: wrap;
        margin-bottom: var(--space-4);
    }

    .form-data-band .fd-stat .fd-value {
        font-size: 32px;
        font-weight: 800;
        color: var(--color-teal);
        line-height: 1.1;
    }

    .form-data-band .fd-stat .fd-label {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.6);
        margin-top: 4px;
    }

    .form-data-band .badge-countdown {
        font-size: 14px;
        height: auto;
        padding: 8px 16px;
    }

    /* ==================== FOOTER ==================== */
    .site-footer {
        background-color: var(--color-ink-deep);
        color: rgba(255, 255, 255, 0.75);
        padding-top: var(--space-7);
        padding-bottom: var(--space-4);
    }

    .site-footer .container {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
        gap: var(--space-6);
    }

    .site-footer h3 {
        color: #FFFFFF;
        font-size: 16px;
        font-weight: 700;
        margin-bottom: var(--space-3);
    }

    .site-footer p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        line-height: 1.7;
    }

    .footer-brand .brand-zh {
        font-size: 18px;
        font-weight: 800;
        color: #FFFFFF;
        margin-bottom: var(--space-2);
        display: block;
    }

    .footer-brand .brand-zh span {
        color: var(--color-rose);
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: var(--space-2);
    }

    .footer-links a {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        transition: color var(--transition-fast);
    }

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

    .footer-bottom {
        margin-top: var(--space-6);
        padding-top: var(--space-4);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: var(--space-3);
        font-size: 12px;
        color: rgba(255, 255, 255, 0.45);
    }

    .footer-bottom a {
        color: rgba(255, 255, 255, 0.45);
    }

    .footer-bottom a:hover {
        color: var(--color-teal);
    }

    /* ==================== RESPONSIVE ==================== */
    @media (max-width: 1024px) {
        .hero-grid {
            grid-template-columns: 1fr;
            gap: var(--space-5);
        }
        .service-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .category-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .news-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .timeline-track {
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-5);
        }
        .timeline-track::before {
            display: none;
        }
        .guarantee-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .resource-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .site-footer .container {
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-4);
        }
        .compare-wrapper {
            grid-template-columns: 1fr;
            gap: var(--space-4);
        }
        .selected-grid {
            grid-template-columns: 1fr;
        }
        .form-section-grid {
            grid-template-columns: 1fr;
            gap: var(--space-4);
        }
    }

    @media (max-width: 768px) {
        .nav-menu {
            display: none;
        }
        .nav-toggle {
            display: flex;
            align-items: center;
        }
        .nav-right {
            gap: var(--space-2);
        }
        .nav-right .badge-status {
            display: none;
        }
        .nav-right .btn-primary {
            display: none;
        }
        .hero {
            padding-top: var(--space-5);
            padding-bottom: var(--space-5);
        }
        .hero h1 {
            font-size: 26px;
        }
        .hero-sub {
            font-size: 15px;
        }
        .kpi-grid {
            grid-template-columns: 1fr 1fr;
            gap: var(--space-3);
        }
        .realtime-metrics {
            justify-content: flex-start;
            gap: var(--space-3);
        }
        section {
            padding-top: var(--space-6);
            padding-bottom: var(--space-6);
        }
        .service-grid,
        .category-grid,
        .news-grid,
        .guarantee-grid,
        .resource-grid {
            grid-template-columns: 1fr;
        }
        .timeline-track {
            grid-template-columns: 1fr;
        }
        .site-footer .container {
            grid-template-columns: 1fr;
            gap: var(--space-4);
        }
    }

    @media (max-width: 520px) {
        .hero-cta {
            flex-direction: column;
            gap: var(--space-2);
        }
        .hero-cta .btn {
            width: 100%;
            text-align: center;
        }
        .kpi-grid {
            grid-template-columns: 1fr;
        }
        .hero-before-after {
            flex-direction: column;
        }
        .compare-row {
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }
        .compare-row .value {
            text-align: left;
        }
    }

    /* ==================== UTILITY ==================== */
    .text-rose {
        color: var(--color-rose);
    }

    .text-teal {
        color: var(--color-teal);
    }

    .text-amber {
        color: var(--color-amber);
    }

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

    .mt-0 { margin-top: 0; }
    .mt-2 { margin-top: var(--space-2); }
    .mt-4 { margin-top: var(--space-4); }
    .mt-6 { margin-top: var(--space-6); }
    .mb-0 { margin-bottom: 0; }
    .mb-2 { margin-bottom: var(--space-2); }
    .mb-4 { margin-bottom: var(--space-4); }
    .gap-2 { gap: var(--space-2); }
    .gap-3 { gap: var(--space-3); }
    .gap-4 { gap: var(--space-4); }
    .flex-wrap { flex-wrap: wrap; }
    .d-flex { display: flex; }
    .align-center { align-items: center; }
    .justify-between { justify-content: space-between; }
    .w-100 { width: 100%; }

/* roulang page: category1 */
:root {
        /* 主色 */
        --color-ink: #1A1C22;
        --color-ink-soft: #26282E;
        --color-ink-deep: #131418;
        --color-rose: #F43E5C;
        --color-rose-hover: #D93650;
        --color-rose-focus: rgba(244, 62, 92, 0.3);
        --color-teal: #31C6A4;
        --color-teal-soft: rgba(49, 198, 164, 0.12);
        --color-amber: #F6A723;
        --color-amber-soft: rgba(246, 167, 35, 0.15);
        --color-paper: #F7F5F2;
        --color-white: #FFFFFF;
        --color-text: #1A1C22;
        --color-text-muted: #6B6B70;
        --color-text-light: #A9A9AE;
        --color-text-on-dark: #F5F3EF;
        --color-border: #E5E1DC;
        --color-border-dark: #3A3C44;
        /* 圆角 */
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-pill: 999px;
        /* 阴影 */
        --shadow-card: 0 8px 24px rgba(26, 28, 34, 0.06);
        --shadow-card-hover: 0 16px 36px rgba(26, 28, 34, 0.12);
        --shadow-btn-rose: 0 6px 16px rgba(244, 62, 92, 0.28);
        --shadow-card-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
        /* 间距 */
        --space-1: 4px;
        --space-2: 8px;
        --space-3: 16px;
        --space-4: 20px;
        --space-5: 28px;
        --space-6: 40px;
        --space-7: 56px;
        --space-8: 72px;
        /* 字体 */
        --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        /* 过渡 */
        --transition-fast: 0.18s ease;
        --transition-base: 0.28s ease;
        --transition-slow: 0.4s ease;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.85;
        color: var(--color-text);
        background-color: var(--color-paper);
        margin: 0;
        padding: 0;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        color: var(--color-ink);
        text-decoration: none;
        transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
    }
    a:hover, a:focus {
        text-decoration: none;
        color: var(--color-rose);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button, input, textarea, select {
        font-family: var(--font-sans);
        font-size: 15px;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    .container-wide {
        max-width: 1320px;
        margin: 0 auto;
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    section {
        padding-top: var(--space-7);
        padding-bottom: var(--space-7);
    }
    .section--paper { background-color: var(--color-paper); }
    .section--white { background-color: var(--color-white); }
    .section--ink { background-color: var(--color-ink); color: var(--color-text-on-dark); }
    .section--ink h2, .section--ink h3, .section--ink p { color: var(--color-text-on-dark); }
    .section-title-row {
        max-width: 760px;
        margin-bottom: var(--space-6);
    }
    .section-title-row h2 { margin-bottom: var(--space-3); font-size: 28px; font-weight: 700; letter-spacing: -0.01em; }
    .section-title-row p { color: var(--color-text-muted); font-size: 16px; line-height: 1.85; margin-bottom: 0; }
    .section--ink .section-title-row p { color: var(--color-text-light); }
    .title-tag {
        display: inline-flex;
        align-items: center;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--color-rose);
        margin-bottom: var(--space-3);
        gap: var(--space-2);
    }
    .title-tag::before {
        content: '';
        display: inline-block;
        width: 24px;
        height: 2px;
        background-color: var(--color-rose);
        border-radius: 2px;
    }
    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background-color: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--color-border);
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
    }
    .site-header.scrolled {
        box-shadow: 0 4px 20px rgba(26, 28, 34, 0.08);
        border-bottom-color: rgba(244, 62, 92, 0.3);
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        flex-wrap: wrap;
        gap: var(--space-3);
    }
    .brand-logo {
        display: flex;
        align-items: flex-end;
        gap: 6px;
        line-height: 1;
        flex-shrink: 0;
    }
    .brand-logo .brand-zh {
        font-size: 26px;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--color-ink);
    }
    .brand-logo .brand-zh span { color: var(--color-rose); }
    .brand-logo .brand-en {
        font-size: 11px;
        font-weight: 600;
        letter-spacing: 0.12em;
        color: var(--color-text-muted);
        text-transform: uppercase;
        margin-bottom: 3px;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: var(--space-5);
        flex-wrap: wrap;
    }
    .nav-menu a {
        font-size: 15px;
        font-weight: 500;
        color: var(--color-text);
        padding: 6px 2px;
        border-bottom: 2px solid transparent;
        transition: color var(--transition-fast), border-color var(--transition-fast);
    }
    .nav-menu a:hover { color: var(--color-rose); }
    .nav-menu a.active {
        color: var(--color-rose);
        border-bottom-color: var(--color-rose);
        font-weight: 600;
    }
    .nav-cta-group {
        display: flex;
        align-items: center;
        gap: var(--space-3);
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 22px;
        font-size: 15px;
        font-weight: 600;
        line-height: 1.2;
        border-radius: var(--radius-pill);
        border: none;
        cursor: pointer;
        transition: all var(--transition-base);
        white-space: nowrap;
    }
    .btn-primary {
        background-color: var(--color-rose);
        color: #fff;
        box-shadow: var(--shadow-btn-rose);
    }
    .btn-primary:hover {
        background-color: var(--color-rose-hover);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(244, 62, 92, 0.35);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline {
        background: transparent;
        color: var(--color-ink);
        border: 1.5px solid var(--color-ink);
    }
    .btn-outline:hover {
        background-color: var(--color-ink);
        color: #fff;
    }
    .btn-ghost {
        background: transparent;
        color: var(--color-ink);
        border: none;
        padding: 8px 16px;
    }
    .btn-ghost:hover { color: var(--color-rose); }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        height: 24px;
        padding: 0 12px;
        font-size: 11px;
        font-weight: 600;
        border-radius: var(--radius-pill);
        letter-spacing: 0.02em;
        white-space: nowrap;
    }
    .badge-amber { background-color: var(--color-amber-soft); color: #8a5b0d; }
    .badge-rose { background-color: var(--color-rose); color: #fff; }
    .badge-teal { background-color: var(--color-teal-soft); color: #0d6e5a; }
    .badge-ink { background-color: var(--color-ink); color: #fff; }
    .mobile-nav-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 24px;
        color: var(--color-ink);
        cursor: pointer;
    }
    /* Category Hero */
    .cat-hero {
        background: var(--color-ink) url('/assets/images/6bc14c3d2ccfa9af.webp') center/cover no-repeat;
        position: relative;
        padding: var(--space-8) 0 var(--space-7);
        color: var(--color-text-on-dark);
    }
    .cat-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26,28,34,0.9) 0%, rgba(26,28,34,0.75) 100%);
    }
    .cat-hero .container { position: relative; z-index: 1; }
    .cat-hero h1 {
        font-size: 36px;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin-bottom: var(--space-4);
        max-width: 800px;
        color: #fff;
    }
    .cat-hero .cat-desc {
        font-size: 17px;
        line-height: 1.9;
        max-width: 720px;
        color: rgba(255,255,255,0.85);
        margin-bottom: var(--space-4);
    }
    .cat-meta {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-4);
        font-size: 13px;
        color: rgba(255,255,255,0.7);
    }
    .cat-meta span { display: inline-flex; align-items: center; gap: 6px; }
    /* Filter bar */
    .filter-bar {
        background: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: var(--space-3) var(--space-4);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: var(--space-3);
        margin-bottom: var(--space-6);
    }
    .filter-bar .filter-group {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        flex-wrap: wrap;
    }
    .filter-bar .filter-btn {
        background: var(--color-paper);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-pill);
        padding: 6px 16px;
        font-size: 13px;
        font-weight: 500;
        color: var(--color-text);
        cursor: pointer;
        transition: all var(--transition-fast);
    }
    .filter-bar .filter-btn:hover,
    .filter-bar .filter-btn.active {
        background: var(--color-ink);
        color: #fff;
        border-color: var(--color-ink);
    }
    .filter-count {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        font-size: 13px;
        color: var(--color-text-muted);
    }
    /* Card grid */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-5);
    }
    .card-item {
        background: var(--color-white);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: box-shadow var(--transition-base), transform var(--transition-base);
        display: flex;
        flex-direction: column;
        position: relative;
        border: 1px solid var(--color-border);
    }
    .card-item:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .card-cover {
        position: relative;
        aspect-ratio: 16/10;
        overflow: hidden;
        background: var(--color-paper);
    }
    .card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition-slow);
    }
    .card-item:hover .card-cover img { transform: scale(1.03); }
    .card-cover .card-index {
        position: absolute;
        top: 12px;
        right: 12px;
        background: var(--color-rose);
        color: #fff;
        font-size: 13px;
        font-weight: 700;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        box-shadow: 0 4px 10px rgba(244,62,92,0.3);
    }
    .card-content {
        padding: var(--space-4);
        display: flex;
        flex-direction: column;
        gap: var(--space-2);
        flex: 1;
    }
    .card-content .card-tag {
        font-size: 12px;
        font-weight: 600;
        color: var(--color-rose);
        letter-spacing: 0.04em;
    }
    .card-content h3 {
        font-size: 18px;
        font-weight: 700;
        margin: 0;
        line-height: 1.4;
    }
    .card-content p {
        font-size: 14px;
        color: var(--color-text-muted);
        line-height: 1.7;
        margin: 0;
    }
    .card-status {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: auto;
        padding-top: var(--space-2);
        border-top: 1px solid var(--color-border);
        font-size: 13px;
        color: var(--color-text-muted);
    }
    .card-status .status-dot {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .status-dot::before {
        content: '';
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--color-teal);
    }
    .btn-more-wrap {
        text-align: center;
        margin-top: var(--space-6);
    }
    .btn-more {
        background: transparent;
        border: 1.5px solid var(--color-ink);
        color: var(--color-ink);
        padding: 10px 28px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 15px;
        cursor: pointer;
        transition: all var(--transition-base);
    }
    .btn-more:hover {
        background: var(--color-ink);
        color: #fff;
    }
    /* Trend capsules */
    .capsule-strip {
        display: flex;
        gap: var(--space-3);
        overflow-x: auto;
        padding-bottom: var(--space-2);
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }
    .capsule {
        flex: 0 0 auto;
        scroll-snap-align: start;
        background: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-pill);
        padding: 8px 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--color-text);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        cursor: pointer;
        transition: all var(--transition-fast);
        white-space: nowrap;
    }
    .capsule:hover {
        border-color: var(--color-rose);
        color: var(--color-rose);
        background: #fff5f7;
    }
    .capsule i { font-size: 13px; color: var(--color-rose); }
    /* Data band */
    .data-band {
        background: var(--color-ink);
        border-radius: var(--radius-md);
        padding: var(--space-5) var(--space-4);
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
        color: #fff;
    }
    .data-item {
        text-align: center;
    }
    .data-item .data-num {
        font-size: 32px;
        font-weight: 700;
        color: var(--color-teal);
        line-height: 1.2;
    }
    .data-item .data-label {
        font-size: 12px;
        color: rgba(255,255,255,0.7);
        margin-top: 4px;
    }
    /* Guarantee strip */
    .guarantee-strip {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
    }
    .guarantee-item {
        background: var(--color-white);
        border-radius: var(--radius-sm);
        padding: var(--space-4);
        display: flex;
        align-items: flex-start;
        gap: var(--space-3);
        border: 1px solid var(--color-border);
    }
    .guarantee-item .guarantee-num {
        font-size: 22px;
        font-weight: 800;
        color: var(--color-rose);
        line-height: 1;
        flex-shrink: 0;
    }
    .guarantee-item h4 {
        font-size: 16px;
        font-weight: 700;
        margin: 0 0 4px;
    }
    .guarantee-item p {
        font-size: 13px;
        color: var(--color-text-muted);
        margin: 0;
        line-height: 1.6;
    }
    /* Auxiliary cards */
    .aux-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-5);
    }
    .aux-card {
        background: var(--color-white);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        display: flex;
        flex-direction: column;
        border: 1px solid var(--color-border);
        transition: box-shadow var(--transition-base), transform var(--transition-base);
    }
    .aux-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .aux-card .aux-img {
        aspect-ratio: 16/7;
        overflow: hidden;
        background: var(--color-paper);
    }
    .aux-card .aux-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .aux-card .aux-body {
        padding: var(--space-4);
    }
    .aux-card h3 { font-size: 20px; font-weight: 700; margin: 0 0 6px; }
    .aux-card p { font-size: 14px; color: var(--color-text-muted); margin: 0; }
    /* CTA section */
    .cta-band {
        background: linear-gradient(135deg, #F43E5C 0%, #FF6B7F 100%);
        border-radius: var(--radius-md);
        padding: var(--space-5) var(--space-6);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: var(--space-4);
        color: var(--color-ink);
    }
    .cta-band .cta-text h2 {
        font-size: 24px;
        font-weight: 800;
        margin: 0 0 6px;
        color: var(--color-ink);
    }
    .cta-band .cta-text p {
        margin: 0;
        font-size: 14px;
        color: rgba(26,28,34,0.8);
    }
    .cta-band .cta-input-group {
        display: flex;
        gap: var(--space-2);
        flex-wrap: wrap;
        align-items: center;
    }
    .cta-band input {
        padding: 10px 18px;
        border: none;
        border-radius: var(--radius-pill);
        min-width: 220px;
        font-size: 14px;
        outline: none;
        box-shadow: inset 0 0 0 1px rgba(26,28,34,0.1);
    }
    .cta-band .btn-dark {
        background: var(--color-ink);
        color: #fff;
        border: none;
        padding: 10px 24px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        cursor: pointer;
        transition: all var(--transition-fast);
    }
    .cta-band .btn-dark:hover {
        background: #000;
        transform: translateY(-2px);
    }
    /* Footer */
    .site-footer {
        background: var(--color-ink-deep);
        color: #E5E1DC;
        padding: var(--space-7) 0 var(--space-4);
        margin-top: var(--space-7);
    }
    .site-footer .container:first-child {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
        gap: var(--space-6);
        padding-bottom: var(--space-5);
        border-bottom: 1px solid var(--color-border-dark);
    }
    .footer-brand .brand-zh {
        font-size: 26px;
        font-weight: 800;
        color: #fff;
        display: inline-block;
        margin-bottom: var(--space-3);
    }
    .footer-brand .brand-zh span { color: var(--color-rose); }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(229,225,220,0.7);
        margin: 0;
    }
    .site-footer h3 {
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        margin-bottom: var(--space-3);
    }
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: var(--space-2);
    }
    .footer-links a {
        color: rgba(229,225,220,0.75);
        font-size: 14px;
        transition: color var(--transition-fast);
    }
    .footer-links a:hover {
        color: var(--color-rose);
    }
    .footer-bottom {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: var(--space-2);
        padding-top: var(--space-4);
        font-size: 13px;
        color: rgba(229,225,220,0.5);
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .card-grid { grid-template-columns: repeat(2, 1fr); }
        .data-band { grid-template-columns: repeat(2, 1fr); }
        .guarantee-strip { grid-template-columns: repeat(2, 1fr); }
        .site-footer .container:first-child { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .nav-menu {
            display: none;
            width: 100%;
            flex-direction: column;
            align-items: flex-start;
            gap: var(--space-2);
            padding: var(--space-3) 0;
        }
        .nav-menu.open { display: flex; }
        .mobile-nav-toggle { display: block; }
        .nav-cta-group { margin-left: auto; }
        .cat-hero h1 { font-size: 28px; }
        .filter-bar { flex-direction: column; align-items: flex-start; }
        .aux-grid { grid-template-columns: 1fr; }
        .cta-band { flex-direction: column; align-items: flex-start; }
    }
    @media (max-width: 520px) {
        .card-grid { grid-template-columns: 1fr; }
        .data-band { grid-template-columns: 1fr; }
        .guarantee-strip { grid-template-columns: 1fr; }
        .site-footer .container:first-child { grid-template-columns: 1fr; }
        .footer-bottom { flex-direction: column; align-items: flex-start; }
    }