/* roulang page: index */
:root {
            --primary: #C8A15A;
            --primary-hover: #D4AF6C;
            --primary-deep: #A8843C;
            --gold-light: #E4C88A;
            --dark: #1E1C19;
            --dark-soft: #2A2723;
            --dark-border: #3A352F;
            --bg: #F6F3EE;
            --white: #FFFFFF;
            --text: #2B2926;
            --muted: #6B655E;
            --border: #E4DED3;
            --light-line: #EDE7DE;
            --accent: #8E3B46;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --radius-tag: 999px;
            --shadow-sm: 0 1px 3px rgba(30, 28, 25, .06);
            --shadow-md: 0 8px 24px rgba(30, 28, 25, .10);
            --shadow-lg: 0 4px 20px rgba(0, 0, 0, .25);
            --font-heading: "Noto Serif SC", "Songti SC", "SimSun", serif;
            --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container: 1200px;
            --space-section: 96px;
            --space-section-md: 64px;
            --space-section-sm: 48px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--dark);
            height: 72px;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .18);
        }
        .header-inner {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-logo svg {
            width: 26px;
            height: 26px;
            color: var(--primary);
        }
        .site-logo .logo-text {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            letter-spacing: .06em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: auto;
            margin-right: 24px;
        }
        .main-nav a {
            color: #E8E2D8;
            font-size: 15px;
            position: relative;
            padding: 6px 0;
            transition: color .25s ease;
        }
        .main-nav a:hover {
            color: var(--primary-hover);
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width .25s ease;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--primary);
        }
        .nav-cta {
            background: var(--primary);
            color: var(--dark);
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            transition: all .25s ease;
            white-space: nowrap;
            border: none;
            line-height: 1.4;
            min-height: 40px;
        }
        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }
        .burger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 6px;
            align-items: center;
            justify-content: center;
            background: transparent;
            flex-direction: column;
            gap: 6px;
            border: 1px solid rgba(255, 255, 255, .25);
        }
        .burger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            transition: transform .25s ease, opacity .25s ease;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark);
            padding: 30px 24px 40px;
            z-index: 99;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            color: #E8E2D8;
            font-size: 17px;
            padding: 14px 4px;
            border-bottom: 1px solid var(--dark-border);
            transition: color .2s;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
        }
        .mobile-menu .nav-cta {
            margin-top: 24px;
            text-align: center;
            min-height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
                margin-right: 16px;
            }
        }
        @media (max-width: 768px) {
            .site-header,
            .header-inner {
                height: 60px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .main-nav {
                display: none;
            }
            .desktop-cta {
                display: none;
            }
            .burger {
                display: flex;
            }
            .mobile-menu {
                top: 60px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            background: var(--bg);
            padding: 72px 0 56px;
            overflow: hidden;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
        }
        .hero-content {
            flex: 0 0 55%;
            max-width: 55%;
        }
        .hero-tag {
            display: inline-block;
            background: rgba(200, 161, 90, .14);
            color: var(--primary-deep);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .12em;
            border-radius: 4px;
            padding: 4px 10px;
            margin-bottom: 20px;
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 5vw, 3.25rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: .01em;
        }
        .hero-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--dark);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
            border: none;
            min-height: 48px;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid var(--text);
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
            min-height: 48px;
        }
        .btn-secondary:hover {
            background: rgba(200, 161, 90, .08);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            align-items: center;
            gap: 36px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .hero-stat-item {
            position: relative;
        }
        .hero-stat-item+.hero-stat-item::before {
            content: "";
            position: absolute;
            left: -18px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background: var(--border);
        }
        .hero-stat-item strong {
            font-family: var(--font-heading);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-deep);
            display: block;
            line-height: 1.3;
        }
        .hero-stat-item span {
            font-size: 13px;
            color: var(--muted);
        }
        .hero-image {
            flex: 0 0 45%;
            max-width: 45%;
            position: relative;
        }
        .hero-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-img);
            object-fit: cover;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16/9;
        }
        .hero-image::after {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: var(--radius-img);
            background: rgba(30, 28, 25, .15);
            pointer-events: none;
        }
        @media (max-width: 768px) {
            .hero {
                padding: 48px 0 40px;
            }
            .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .hero-content {
                flex: none;
                max-width: 100%;
            }
            .hero-image {
                flex: none;
                max-width: 100%;
                margin-right: -16px;
            }
            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }
            .hero-stat-item+.hero-stat-item::before {
                left: -10px;
                height: 22px;
            }
        }

        /* ===== Section generic ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
        }
        .section-tag-vertical {
            writing-mode: vertical-rl;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .14em;
            color: var(--primary-deep);
            background: rgba(200, 161, 90, .1);
            border-radius: 4px;
            padding: 6px 4px;
            min-height: 64px;
            text-transform: uppercase;
            white-space: nowrap;
        }
        .section-head-content {
            flex: 1;
            max-width: 700px;
            padding-left: 8px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-note {
            font-size: 14px;
            color: var(--muted);
            max-width: 340px;
            text-align: right;
            align-self: flex-end;
            line-height: 1.7;
        }
        @media (max-width: 640px) {
            .section {
                padding: var(--space-section-sm) 0;
            }
            .section-head {
                flex-wrap: wrap;
                margin-bottom: 32px;
            }
            .section-note {
                max-width: 100%;
                text-align: left;
                padding-left: 40px;
            }
        }

        /* ===== Categories (功能分组) ===== */
        .categories {
            background: var(--white);
        }
        .category-grid-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 24px;
        }
        .category-grid-bottom {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: all .25s ease;
            position: relative;
            box-shadow: var(--shadow-sm);
        }
        .category-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .cat-icon {
            width: 44px;
            height: 44px;
            margin-bottom: 18px;
            color: var(--primary);
            transition: transform .25s ease;
        }
        .category-card:hover .cat-icon {
            transform: translateX(4px);
        }
        .category-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .cat-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-deep);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .25s ease;
        }
        .cat-link:hover {
            gap: 8px;
            color: var(--primary);
        }
        @media (max-width: 1024px) {
            .category-grid-top {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid-bottom {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .category-grid-top,
            .category-grid-bottom {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Scenarios (使用场景) ===== */
        .scenarios {
            background: var(--bg);
        }
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 56px;
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }
        .scenario-row:first-child {
            padding-top: 8px;
        }
        .scenario-row:last-child {
            border-bottom: none;
        }
        .scenario-media {
            flex: 0 0 46%;
            border-radius: var(--radius-img);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .scenario-media img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .scenario-row:hover .scenario-media img {
            transform: scale(1.03);
        }
        .scenario-content {
            flex: 1;
        }
        .scenario-tag {
            display: inline-block;
            background: rgba(200, 161, 90, .16);
            color: var(--primary-deep);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .1em;
            border-radius: var(--radius-tag);
            padding: 3px 10px;
            margin-bottom: 14px;
        }
        .scenario-content h3 {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
        }
        .scenario-list {
            margin-bottom: 18px;
        }
        .scenario-list li {
            padding-left: 22px;
            position: relative;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .scenario-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }
        .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-deep);
            transition: gap .25s ease;
        }
        .scenario-link:hover {
            gap: 8px;
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .scenario-row {
                flex-direction: column;
                gap: 24px;
                padding: 32px 0;
            }
            .scenario-media {
                flex: none;
                width: 100%;
            }
        }

        /* ===== Testimonials (成功案例) ===== */
        .testimonials {
            background: var(--dark);
            color: var(--gold-light);
        }
        .testimonials .section-title {
            color: #F2EDE4;
        }
        .testimonials .section-note {
            color: rgba(242, 237, 228, .7);
        }
        .testimonials .section-tag-vertical {
            background: rgba(200, 161, 90, .2);
            color: var(--gold-light);
        }
        .testimonial-wrap {
            display: grid;
            grid-template-columns: 0.85fr 1.4fr;
            gap: 48px;
            align-items: center;
        }
        .stats-col {
            padding-right: 40px;
            border-right: 1px solid var(--dark-border);
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            color: var(--gold-light);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(242, 237, 228, .6);
            margin-bottom: 26px;
        }
        .quote-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .quote-card {
            background: rgba(255, 255, 255, .06);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            position: relative;
            border-left: 3px solid var(--primary);
            transition: background .25s ease;
        }
        .quote-card:hover {
            background: rgba(255, 255, 255, .1);
        }
        .quote-card .q-mark {
            font-size: 32px;
            line-height: 1;
            color: var(--primary);
            opacity: .6;
            display: block;
            margin-bottom: 8px;
        }
        .quote-text {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .88);
            margin-bottom: 10px;
        }
        .quote-meta {
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }
        @media (max-width: 768px) {
            .testimonial-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .stats-col {
                border-right: none;
                border-bottom: 1px solid var(--dark-border);
                padding-right: 0;
                padding-bottom: 28px;
            }
        }

        /* ===== Security ===== */
        .security {
            background: var(--white);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .security-item {
            padding: 32px 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all .25s ease;
            background: var(--bg);
        }
        .security-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .security-item svg {
            width: 32px;
            height: 32px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .security-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .security-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .security-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Pricing ===== */
        .pricing {
            background: var(--bg);
        }
        .pricing-grid {
            display: flex;
            gap: 28px;
            justify-content: center;
            align-items: stretch;
            flex-wrap: wrap;
        }
        .plan-card {
            flex: 1;
            min-width: 280px;
            max-width: 420px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: flex;
            flex-direction: column;
            transition: all .25s ease;
            box-shadow: var(--shadow-sm);
        }
        .plan-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .plan-card.plan-featured {
            background: #F7F2E9;
            border: 1px solid var(--primary);
            position: relative;
        }
        .plan-card.plan-featured:hover {
            border-color: var(--primary-hover);
            box-shadow: 0 12px 28px rgba(200, 161, 90, .16);
        }
        .plan-badge {
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--primary);
            color: var(--dark);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .06em;
            border-radius: var(--radius-tag);
            padding: 4px 14px;
            box-shadow: 0 2px 6px rgba(200, 161, 90, .3);
        }
        .plan-name {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .plan-price {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary-deep);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .plan-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--muted);
            font-family: var(--font-body);
        }
        .plan-desc {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--light-line);
        }
        .plan-features {
            margin-bottom: 28px;
            flex: 1;
        }
        .plan-features li {
            padding-left: 28px;
            position: relative;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text);
            margin-bottom: 10px;
        }
        .plan-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary);
            font-weight: 700;
        }
        .plan-card .btn-primary,
        .plan-card .btn-secondary {
            width: 100%;
            justify-content: center;
            min-height: 48px;
        }
        .plan-card.plan-featured .btn-primary {
            background: var(--dark);
            color: var(--gold-light);
        }
        .plan-card.plan-featured .btn-primary:hover {
            background: #2A2723;
        }
        .pricing-note {
            text-align: center;
            font-size: 12px;
            color: var(--muted);
            margin-top: 28px;
        }
        @media (max-width: 768px) {
            .pricing-grid {
                flex-direction: column;
                align-items: center;
            }
            .plan-card {
                width: 100%;
                max-width: 480px;
            }
        }

        /* ===== FAQ ===== */
        .faq {
            background: var(--white);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 0 28px;
            box-shadow: var(--shadow-sm);
        }
        .faq-item {
            border-bottom: 1px solid var(--light-line);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: color .2s;
            background: none;
            border: none;
        }
        .faq-q:hover {
            color: var(--primary-deep);
        }
        .faq-icon {
            flex: 0 0 20px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: transform .3s ease;
            margin-left: 4px;
        }
        .faq-icon::before {
            content: "";
            width: 10px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .faq-icon::after {
            content: "";
            position: absolute;
            width: 2px;
            height: 10px;
            background: var(--primary);
            border-radius: 2px;
            transition: opacity .2s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            transition: max-height .3s ease, opacity .3s ease, padding .3s ease;
            padding: 0 20px 0 44px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
        }
        .faq-item.open .faq-a {
            max-height: 400px;
            opacity: 1;
            padding-bottom: 20px;
        }
        @media (max-width: 640px) {
            .faq-list {
                padding: 0 18px;
            }
            .faq-q {
                font-size: 15px;
            }
            .faq-a {
                padding-left: 40px;
            }
        }

        /* ===== CTA Band ===== */
        .cta-band {
            background: var(--dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 30% 20%, rgba(200, 161, 90, .15) 0%, transparent 50%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-title {
            font-family: var(--font-heading);
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .cta-sub {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-band .btn-primary {
            background: var(--primary);
            color: var(--dark);
            font-size: 16px;
            padding: 14px 40px;
        }
        .cta-band .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #C9C2B8;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid var(--dark-border);
        }
        .footer-brand .site-logo {
            margin-bottom: 14px;
        }
        .footer-brand .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(242, 237, 228, .6);
            max-width: 260px;
            margin-bottom: 20px;
        }
        .footer-divider {
            height: 1px;
            background: var(--dark-border);
            margin-bottom: 16px;
        }
        .footer-icp {
            font-size: 12px;
            color: rgba(242, 237, 228, .35);
        }
        .footer-title {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: .1em;
            margin-bottom: 18px;
        }
        .footer-links li {
            margin-bottom: 6px;
        }
        .footer-links a {
            font-size: 14px;
            color: #C9C2B8;
            transition: color .2s;
            line-height: 1.8;
        }
        .footer-links a:hover {
            color: var(--primary-hover);
        }
        .footer-contact {
            font-size: 14px;
            line-height: 2;
        }
        .footer-contact span {
            color: rgba(242, 237, 228, .5);
            margin-right: 6px;
        }
        .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 12px;
            color: rgba(242, 237, 228, .4);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== Animations ===== */
        .hero-content>*, .hero-image {
            opacity: 0;
            animation: fadeUp .6s ease forwards;
        }
        .hero-content .hero-tag {
            animation-delay: .1s;
        }
        .hero-content .hero-title {
            animation-delay: .2s;
        }
        .hero-content .hero-sub {
            animation-delay: .3s;
        }
        .hero-content .hero-btns {
            animation-delay: .4s;
        }
        .hero-content .hero-stats {
            animation-delay: .5s;
        }
        .hero-image {
            animation-delay: .35s;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(15px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
            .hero-content>*,
            .hero-image {
                opacity: 1;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #C8A15A;
  --primary-hover: #D4AF6C;
  --primary-deep: #A8843C;
  --gold-light: #E4C88A;
  --dark: #1E1C19;
  --dark-soft: #2A2723;
  --dark-border: #3A352F;
  --bg: #F6F3EE;
  --white: #FFFFFF;
  --text: #2B2926;
  --muted: #6B655E;
  --border: #E4DED3;
  --light-line: #EDE7DE;
  --accent: #8E3B46;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-img: 10px;
  --radius-tag: 999px;
  --shadow-sm: 0 1px 3px rgba(30, 28, 25, .06);
  --shadow-md: 0 8px 24px rgba(30, 28, 25, .10);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, .25);
  --font-heading: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container: 1200px;
  --space-section: 96px;
  --space-section-md: 64px;
  --space-section-sm: 48px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
}
input, select {
  font-family: inherit;
}
ul {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}
/* ========== Header ========== */
.site-header {
  background: var(--dark);
  height: 72px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .18);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-logo svg {
  width: 26px;
  height: 26px;
  color: var(--primary);
  flex-shrink: 0;
}
.site-logo .logo-text {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .06em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
  margin-right: 24px;
}
.main-nav a {
  color: #E8E2D8;
  font-size: 15px;
  position: relative;
  padding: 6px 0;
  transition: color .25s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.main-nav a:hover {
  color: var(--primary-hover);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .25s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a.active {
  color: var(--primary);
}
.nav-cta {
  background: var(--primary);
  color: var(--dark);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius-btn);
  padding: 10px 22px;
  transition: all .25s ease;
  white-space: nowrap;
  border: none;
  line-height: 1.4;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}
.burger {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--dark-border);
  border-radius: 6px;
}
.burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all .25s ease;
}
.burger.active span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.burger.active span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  padding: 30px 24px 40px;
  z-index: 99;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  color: #E8E2D8;
  font-size: 17px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--dark-border);
  transition: color .2s;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--primary);
}
.mobile-menu .nav-cta {
  margin-top: 24px;
  text-align: center;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1024px) {
  .main-nav {
    gap: 20px;
    margin-right: 16px;
  }
}
@media (max-width: 768px) {
  .site-header,
  .header-inner {
    height: 60px;
  }
  .header-inner {
    padding: 0 16px;
  }
  .main-nav {
    display: none;
  }
  .desktop-cta {
    display: none;
  }
  .burger {
    display: flex;
  }
  .mobile-menu {
    top: 60px;
  }
}
/* ========== 分类 Hero ========== */
.cat-hero {
  background: var(--dark);
  padding: 64px 0 60px;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(200, 161, 90, .08);
  pointer-events: none;
}
.cat-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.cat-breadcrumb {
  font-size: 13px;
  color: #8A857D;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cat-breadcrumb a {
  color: var(--gold-light);
  transition: color .2s;
}
.cat-breadcrumb a:hover {
  color: var(--primary-hover);
}
.cat-breadcrumb .sep {
  color: var(--primary);
  font-size: 12px;
}
.cat-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: #F2EDE4;
  line-height: 1.35;
  margin-bottom: 16px;
  font-weight: 600;
  letter-spacing: .02em;
}
.cat-hero-desc {
  color: #B9B2A8;
  font-size: 15px;
  line-height: 1.8;
  max-width: 520px;
}
.hero-card {
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--dark-border);
  border-radius: 14px;
  padding: 10px;
  transform: translateX(20px);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(2px);
}
.hero-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: 10px;
}
.hero-card-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 8px 6px;
  flex-wrap: wrap;
}
.hero-card-tag {
  background: var(--primary);
  color: var(--dark);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-tag);
  letter-spacing: .04em;
}
.hero-card-title {
  color: #F2EDE4;
  font-size: 15px;
  font-weight: 600;
  flex: 1;
  line-height: 1.4;
  min-width: 0;
}
.hero-card-btn {
  background: var(--primary);
  color: var(--dark);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-btn);
  transition: all .25s ease;
  white-space: nowrap;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.hero-card-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}
@media (max-width: 900px) {
  .cat-hero {
    padding: 48px 0 40px;
  }
  .cat-hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-card {
    transform: none;
    max-width: 460px;
  }
}
/* ========== 数据条 ========== */
.cat-stats {
  background: var(--bg);
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.stats-row {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.stat-item {
  text-align: center;
}
.stat-num {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.1;
}
.stat-num span {
  font-size: 22px;
  margin-left: 2px;
}
.stat-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
  letter-spacing: .06em;
}
@media (max-width: 768px) {
  .stats-row {
    gap: 24px;
  }
  .stat-num {
    font-size: 32px;
  }
}
@media (max-width: 520px) {
  .stats-row {
    flex-direction: column;
    gap: 20px;
  }
}
/* ========== 筛选条 ========== */
.cat-filter {
  background: var(--bg);
  padding: 28px 0 8px;
}
.filter-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.filter-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-tag {
  padding: 8px 20px;
  border-radius: var(--radius-tag);
  border: 1px solid var(--border);
  background: var(--white);
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: all .25s ease;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  line-height: 1.2;
}
.filter-tag:hover {
  border-color: var(--primary);
  background: rgba(200, 161, 90, .08);
}
.filter-tag.active {
  background: var(--dark);
  color: #fff;
  border-color: var(--dark);
}
.sort-box {
  position: relative;
}
.sort-box select {
  -webkit-appearance: none;
  appearance: none;
  padding: 8px 38px 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-tag);
  background: var(--white);
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  min-height: 40px;
  line-height: 1.2;
  transition: border-color .25s ease;
}
.sort-box select:hover {
  border-color: var(--primary);
}
.sort-box::after {
  content: "";
  position: absolute;
  right: 15px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}
@media (max-width: 768px) {
  .filter-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .filter-tags {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .filter-tags::-webkit-scrollbar {
    display: none;
  }
  .filter-tag {
    white-space: nowrap;
    flex-shrink: 0;
  }
  .sort-box {
    width: 100%;
  }
  .sort-box select {
    width: 100%;
  }
}
/* ========== 内容卡片网格 ========== */
.cat-grid {
  padding: 32px 0 56px;
  background: var(--bg);
}
.section-head {
  margin-bottom: 36px;
  padding-left: 18px;
  position: relative;
}
.section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--primary-deep);
  margin-bottom: 6px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--text);
  line-height: 1.3;
  font-weight: 600;
}
.section-note {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}
.grid-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-card {
  background: var(--white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}
.cat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.card-img {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--light-line);
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.cat-card:hover .card-img img {
  transform: scale(1.03);
}
.card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(200, 161, 90, .12);
  color: var(--primary-deep);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
  align-self: flex-start;
  letter-spacing: .03em;
}
.card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 8px;
  color: var(--text);
  transition: color .2s;
}
.cat-card:hover .card-title {
  color: var(--primary-deep);
}
.card-summary {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.card-meta {
  display: flex;
  gap: 16px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--light-line);
  font-size: 12px;
  color: var(--muted);
}
.cat-card.featured {
  grid-column: span 2;
}
.cat-card.featured .card-img {
  aspect-ratio: 16 / 7.5;
}
.cat-card.featured .card-title {
  font-size: 22px;
}
.cat-card.featured .card-summary {
  -webkit-line-clamp: 3;
}
@media (max-width: 1024px) {
  .grid-items {
    grid-template-columns: repeat(2, 1fr);
  }
  .cat-card.featured {
    grid-column: span 1;
  }
  .cat-card.featured .card-img {
    aspect-ratio: 16 / 10;
  }
  .cat-card.featured .card-title {
    font-size: 18px;
  }
}
@media (max-width: 640px) {
  .grid-items {
    grid-template-columns: 1fr;
  }
}
/* ========== 加载更多 ========== */
.load-more-wrap {
  text-align: center;
  padding: 8px 0 56px;
  background: var(--bg);
}
.load-more-btn {
  border: 1px solid #939088;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 36px;
  border-radius: var(--radius-btn);
  transition: all .25s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.load-more-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--dark);
  transform: translateY(-2px);
}
.load-more-btn.loading-done {
  background: rgba(200, 161, 90, .08);
  border-color: var(--border);
  color: var(--muted);
  cursor: default;
}
.load-more-btn.loading-done:hover {
  transform: none;
  background: rgba(200, 161, 90, .08);
  border-color: var(--border);
  color: var(--muted);
}
/* ========== FAQ ========== */
.cat-faq {
  background: var(--white);
  padding: var(--space-section) 0;
}
.cat-faq .container {
  max-width: 900px;
}
.cat-faq .section-head {
  margin-bottom: 40px;
}
.faq-list {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--white);
  padding: 0 24px;
  box-shadow: var(--shadow-sm);
}
.faq-item {
  border-bottom: 1px solid var(--light-line);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  width: 100%;
  text-align: left;
  min-height: 44px;
  background: none;
  transition: color .2s;
}
.faq-question:hover {
  color: var(--primary-deep);
}
.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  flex-shrink: 0;
  position: relative;
  transition: transform .3s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 1px;
}
.faq-icon::before {
  width: 10px;
  height: 2px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  width: 2px;
  height: 10px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-answer p {
  padding: 0 36px 20px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
@media (max-width: 640px) {
  .cat-faq {
    padding: var(--space-section-sm) 0;
  }
  .faq-list {
    padding: 0 16px;
  }
  .faq-question {
    font-size: 15px;
  }
}
/* ========== CTA 带 ========== */
.cta-band {
  background: var(--dark);
  padding: 56px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  opacity: .18;
  pointer-events: none;
}
.cta-band .container {
  position: relative;
}
.cta-band h2 {
  font-family: var(--font-heading);
  color: var(--gold-light);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 12px;
  font-weight: 600;
}
.cta-band p {
  color: #C9C2B8;
  font-size: 15px;
  margin-bottom: 28px;
}
.cta-btn {
  background: var(--primary);
  color: var(--dark);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 40px;
  border-radius: var(--radius-btn);
  transition: all .25s ease;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
}
.cta-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 161, 90, .25);
}
/* ========== Footer ========== */
.site-footer {
  background: var(--dark);
  color: #A9A29A;
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--dark-border);
}
.footer-brand .site-logo {
  margin-bottom: 14px;
}
.footer-brand .site-logo svg {
  color: var(--primary);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #B9B2A8;
  max-width: 280px;
  margin-bottom: 16px;
}
.footer-divider {
  height: 1px;
  background: var(--dark-border);
  margin-bottom: 16px;
}
.footer-icp {
  font-size: 12px;
  color: #6B655E;
}
.footer-title {
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  margin-bottom: 16px;
}
.footer-links li {
  line-height: 2.2;
}
.footer-links a {
  color: #C9C2B8;
  font-size: 14px;
  transition: color .2s;
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-contact {
  font-size: 14px;
  color: #C9C2B8;
  line-height: 2;
}
.footer-contact span {
  color: var(--muted);
}
.footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .site-footer {
    padding: 40px 0 20px;
  }
}
/* ========== 动效与无障碍 ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}