/* roulang page: index */
:root {
            --primary: #2E8B57;
            --primary-600: #1E6B43;
            --primary-100: #E7F2EB;
            --accent: #F28A3C;
            --accent-600: #D97528;
            --bg: #F5F8F5;
            --surface: #FFFFFF;
            --ink: #1A2B22;
            --muted: #5B6F63;
            --line: #DCE9E0;
            --footer-bg: #132019;
            --footer-text: #DBEBE0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26,43,34,0.06);
            --shadow-md: 0 8px 24px rgba(26,43,34,0.10);
            --shadow-lg: 0 16px 40px rgba(26,43,34,0.14);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-600);
            text-decoration: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

        input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: var(--bg);
            color: var(--ink);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46,139,87,0.15);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--ink);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .logo:hover {
            color: var(--primary-600);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-icon .num91 {
            font-weight: 900;
            color: #fff;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: var(--muted);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .locate-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-100);
            color: var(--primary-600);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .locate-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .locate-btn svg, .locate-btn i {
            font-size: 1rem;
        }

        /* Mobile hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--ink);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(26,43,34,0.96);
            z-index: 99;
            padding: 24px 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: var(--footer-text);
            font-size: 1.1rem;
            font-weight: 600;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.1);
            color: #fff;
        }
        .mobile-nav .mobile-locate {
            margin-top: 12px;
            padding: 14px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            text-align: center;
            font-weight: 600;
        }

        /* Mobile locate bar */
        .mobile-locate-bar {
            display: none;
            background: var(--primary-100);
            padding: 10px 20px;
            border-bottom: 1px solid var(--line);
            cursor: pointer;
            transition: background var(--transition);
        }
        .mobile-locate-bar:hover {
            background: #D9EBDD;
        }
        .mobile-locate-bar span {
            color: var(--primary-600);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/74ba94f91a6b9fc3.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            text-align: center;
            padding: 80px 20px 100px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,43,34,0.72) 0%, rgba(26,43,34,0.55) 40%, rgba(26,43,34,0.78) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 999px;
            padding: 8px 20px;
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }
        .hero-brand .num-badge {
            background: var(--accent);
            color: #fff;
            border-radius: 999px;
            padding: 2px 10px;
            font-weight: 800;
            font-size: 0.85rem;
        }
        .hero h1 {
            font-size: clamp(2rem, 4.5vw, 3rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 16px rgba(0,0,0,0.35);
        }
        .hero-subtitle {
            font-size: clamp(1rem, 1.5vw, 1.15rem);
            color: rgba(255,255,255,0.92);
            max-width: 720px;
            margin: 0 auto 32px;
            font-weight: 400;
            line-height: 1.85;
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            min-height: 48px;
            cursor: pointer;
            border: 2px solid transparent;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(46,139,87,0.35);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-600);
            border-color: var(--primary-600);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-600);
            border-color: var(--accent-600);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255,255,255,0.7);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.15);
            border-color: #fff;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-100);
            color: var(--primary-600);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.88rem;
            min-height: 38px;
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 1.08rem;
            min-height: 54px;
        }
        .hero-series-nav {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-series-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 999px;
            padding: 10px 20px;
            color: #fff;
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }
        .hero-series-nav a:hover {
            background: rgba(255,255,255,0.25);
            border-color: rgba(255,255,255,0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-series-nav a .pin-icon {
            color: var(--accent);
        }

        /* Sections */
        section, .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg);
        }
        .section-white {
            background: var(--surface);
        }
        .section-primary-bg {
            background: var(--primary-100);
        }
        .section-footer-bg {
            background: var(--footer-bg);
            color: var(--footer-text);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 2.8vw, 2rem);
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-header p {
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.85;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-100);
            color: var(--primary-600);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .section-tag.accent-tag {
            background: #FFF3E8;
            color: var(--accent-600);
        }

        /* Cards Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46,139,87,0.3);
        }
        .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-100);
            position: relative;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-image img {
            transform: scale(1.03);
        }
        .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .card:hover .card-body h3 {
            color: var(--primary);
        }
        .card-body p {
            color: var(--muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }
        .tag {
            display: inline-block;
            background: var(--primary-100);
            color: var(--primary-600);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.78rem;
            font-weight: 600;
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
        }
        .tag-accent {
            background: #FFF3E8;
            color: var(--accent-600);
        }
        .tag-accent:hover {
            background: var(--accent);
            color: #fff;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 12px;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
            color: var(--primary-600);
        }

        /* Horizontal scroll */
        .h-scroll-wrapper {
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 16px;
            margin: 0 -20px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .h-scroll {
            display: flex;
            gap: 20px;
            scroll-snap-align: start;
        }
        .h-scroll-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            min-width: 300px;
        }
        .h-scroll-card-lg {
            flex: 0 0 360px;
            min-width: 360px;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-number .num-accent {
            color: var(--accent);
        }
        .stat-label {
            color: var(--muted);
            font-size: 0.95rem;
            font-weight: 500;
        }

        /* Process steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .step-item {
            text-align: center;
            padding: 28px 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(46,139,87,0.3);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .step-number .step-accent {
            background: var(--accent);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--ink);
        }
        .step-item p {
            color: var(--muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* Masonry / image wall */
        .image-wall {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            grid-auto-rows: 120px;
            gap: 16px;
        }
        .wall-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            background: var(--primary-100);
            cursor: pointer;
            transition: all var(--transition);
        }
        .wall-item:hover {
            transform: scale(1.02);
            box-shadow: var(--shadow-md);
        }
        .wall-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .wall-item .wall-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px;
            background: linear-gradient(transparent, rgba(26,43,34,0.85));
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .wall-item.wide {
            grid-column: span 3;
            grid-row: span 2;
        }
        .wall-item.tall {
            grid-column: span 2;
            grid-row: span 2;
        }
        .wall-item.small {
            grid-column: span 1;
            grid-row: span 1;
        }

        /* Horizontal scene cards */
        .scene-card {
            flex: 0 0 280px;
            min-width: 280px;
            scroll-snap-align: start;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--surface);
            border: 1px solid var(--line);
            transition: all var(--transition);
        }
        .scene-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .scene-card .scene-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }
        .scene-card .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-card .scene-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(26,43,34,0.75);
            color: #fff;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .scene-card .scene-body {
            padding: 16px 18px;
        }
        .scene-card .scene-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .scene-card .scene-body p {
            color: var(--muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--surface);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-trigger {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
            background: transparent;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink);
        }
        .faq-trigger:hover {
            background: var(--primary-100);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-100);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: transform var(--transition);
            font-weight: 700;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer-inner {
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            padding-top: 4px;
        }

        /* Guarantee strip */
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .guarantee-item:hover {
            border-color: rgba(46,139,87,0.3);
            box-shadow: var(--shadow-sm);
        }
        .guarantee-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--primary-100);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .guarantee-item h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .guarantee-item p {
            color: var(--muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .tag-cloud-item {
            display: inline-block;
            padding: 10px 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 999px;
            color: var(--muted);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            cursor: pointer;
        }
        .tag-cloud-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .tag-cloud-item.hot {
            background: #FFF3E8;
            color: var(--accent-600);
            border-color: #FFE0C0;
        }
        .tag-cloud-item.hot:hover {
            background: var(--accent);
            color: #fff;
        }

        /* Review cards */
        .review-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
        }
        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(46,139,87,0.3);
        }
        .review-stars {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }
        .review-text {
            color: var(--muted);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-100);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .review-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--ink);
        }
        .review-loc {
            font-size: 0.8rem;
            color: var(--muted);
        }

        /* List */
        .list-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .list-card:hover {
            border-color: rgba(46,139,87,0.3);
            box-shadow: var(--shadow-sm);
            background: #FAFDFB;
        }
        .list-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            flex-shrink: 0;
            width: 48px;
            text-align: center;
        }
        .list-number.green {
            color: var(--primary);
        }
        .list-content {
            flex: 1;
        }
        .list-content h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .list-content p {
            color: var(--muted);
            font-size: 0.84rem;
            line-height: 1.6;
        }
        .list-date {
            font-size: 0.8rem;
            color: var(--muted);
            white-space: nowrap;
        }

        /* Contact CTA */
        .contact-cta {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .contact-cta-left h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 16px;
        }
        .contact-cta-left p {
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .contact-form {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px;
        }
        .contact-form .form-group {
            margin-bottom: 18px;
        }
        .contact-form label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .contact-form .btn-submit {
            width: 100%;
            margin-top: 8px;
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 60px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .footer-brand .num91-footer {
            color: var(--accent);
            font-weight: 900;
        }
        .footer-desc {
            color: var(--footer-text);
            font-size: 0.88rem;
            line-height: 1.8;
            opacity: 0.85;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: var(--footer-text);
            font-size: 0.88rem;
            padding: 6px 0;
            transition: all var(--transition);
            opacity: 0.85;
        }
        .footer-col a:hover {
            color: #fff;
            opacity: 1;
            transform: translateX(3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--footer-text);
            opacity: 0.7;
        }
        .footer-bottom a {
            color: var(--footer-text);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Collection entry */
        .collection-entry {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .collection-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px;
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .collection-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46,139,87,0.3);
        }
        .collection-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-100);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }
        .collection-card h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--ink);
        }
        .collection-card p {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.5;
        }

        /* Save share section */
        .save-share-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .save-share-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
            transition: all var(--transition);
        }
        .save-share-panel:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(46,139,87,0.3);
            transform: translateY(-4px);
        }
        .save-share-panel .ss-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .save-share-panel h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--ink);
        }
        .save-share-panel p {
            color: var(--muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid-3, .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .collection-entry {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-cta {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .image-wall {
                grid-template-columns: repeat(4, 1fr);
            }
            .wall-item.wide {
                grid-column: span 4;
            }
            .wall-item.tall {
                grid-column: span 2;
            }
            .main-nav {
                gap: 18px;
            }
            .save-share-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .main-nav {
                display: none;
            }
            .nav-right .locate-btn {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-locate-bar {
                display: block;
            }
            .hero {
                min-height: 560px;
                padding: 60px 16px 80px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-series-nav {
                gap: 8px;
            }
            .hero-series-nav a {
                padding: 8px 14px;
                font-size: 0.78rem;
            }
            section, .section {
                padding: 48px 0;
            }
            .card-grid-3, .card-grid-4, .stats-grid,
            .steps-row, .guarantee-strip, .collection-entry {
                grid-template-columns: 1fr;
            }
            .image-wall {
                grid-template-columns: repeat(2, 1fr);
                grid-auto-rows: 100px;
            }
            .wall-item.wide, .wall-item.tall {
                grid-column: span 2;
                grid-row: span 2;
            }
            .wall-item.small {
                grid-column: span 1;
                grid-row: span 1;
            }
            .h-scroll-card {
                flex: 0 0 260px;
                min-width: 260px;
            }
            .h-scroll-card-lg {
                flex: 0 0 280px;
                min-width: 280px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .contact-cta-left h2 {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.35rem;
            }
            .hero-subtitle {
                font-size: 0.88rem;
                line-height: 1.7;
            }
            .btn {
                font-size: 0.9rem;
                padding: 12px 20px;
                min-height: 42px;
            }
            .card-body {
                padding: 16px 18px;
            }
            .card-body h3 {
                font-size: 0.98rem;
            }
            .section-header p {
                font-size: 0.9rem;
            }
            .stat-item {
                padding: 20px 14px;
            }
            .contact-form {
                padding: 18px;
            }
            .footer-bottom {
                font-size: 0.72rem;
            }
            .review-card {
                padding: 18px;
            }
            .collection-card {
                padding: 16px;
            }
            .save-share-panel {
                padding: 20px 16px;
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        .divider {
            border-top: 1px solid var(--line);
            margin: 0 auto;
            max-width: 120px;
        }

/* roulang page: category1 */
:root {
        --primary: #2E8B57;
        --primary-600: #1E6B43;
        --primary-100: #E7F2EB;
        --accent: #F28A3C;
        --accent-600: #D97528;
        --bg: #F5F8F5;
        --surface: #FFFFFF;
        --ink: #1A2B22;
        --muted: #5B6F63;
        --line: #DCE9E0;
        --footer-bg: #132019;
        --footer-text: #DBEBE0;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-xl: 20px;
        --shadow-sm: 0 2px 8px rgba(26,43,34,0.06);
        --shadow-md: 0 8px 24px rgba(26,43,34,0.10);
        --shadow-lg: 0 16px 40px rgba(26,43,34,0.14);
        --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
        --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --container-max: 1200px;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    *, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.75;
        color: var(--ink);
        background-color: var(--bg);
        min-height: 100vh;
        overflow-x: hidden;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--primary-600);
        text-decoration: none;
    }
    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
        font-size: inherit;
    }
    input, textarea, select {
        font-family: inherit;
        font-size: inherit;
        border: 1px solid var(--line);
        border-radius: var(--radius-sm);
        padding: 12px 16px;
        background: var(--bg);
        color: var(--ink);
        outline: none;
        transition: border-color var(--transition), box-shadow var(--transition);
        width: 100%;
    }
    input:focus, textarea:focus, select:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(46,139,87,0.15);
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 20px;
    }
    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--line);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 16px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--ink);
        white-space: nowrap;
        letter-spacing: -0.02em;
    }
    .logo:hover {
        color: var(--primary-600);
    }
    .logo-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--primary);
        color: #fff;
        border-radius: 10px;
        font-size: 1.1rem;
        font-weight: 700;
        flex-shrink: 0;
    }
    .logo-icon .num91 {
        font-weight: 900;
        color: #fff;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 28px;
    }
    .main-nav a {
        color: var(--muted);
        font-size: 0.95rem;
        font-weight: 500;
        position: relative;
        padding: 6px 2px;
        white-space: nowrap;
        transition: color var(--transition);
    }
    .main-nav a:hover {
        color: var(--primary);
    }
    .main-nav a.active {
        color: var(--primary);
    }
    .main-nav a.active::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--primary);
        border-radius: 2px;
    }
    .nav-right {
        display: flex;
        align-items: center;
        gap: 14px;
    }
    .locate-btn {
        display: flex;
        align-items: center;
        gap: 8px;
        background: var(--primary-100);
        color: var(--primary-600);
        border: 1px solid var(--line);
        border-radius: 999px;
        padding: 10px 18px;
        font-size: 0.9rem;
        font-weight: 600;
        transition: all var(--transition);
        white-space: nowrap;
    }
    .locate-btn:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .locate-btn svg, .locate-btn i {
        font-size: 1rem;
    }
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
        background: transparent;
        border: none;
    }
    .hamburger span {
        display: block;
        width: 26px;
        height: 3px;
        background: var(--ink);
        border-radius: 3px;
        transition: all var(--transition);
    }
    .hamburger.open span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.open span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.open span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    /* Breadcrumb */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--muted);
        margin-bottom: 12px;
        flex-wrap: wrap;
    }
    .breadcrumb a {
        color: var(--muted);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .sep {
        color: var(--line);
        user-select: none;
    }
    .breadcrumb .current {
        color: var(--primary-600);
        font-weight: 600;
    }
    /* Category Head */
    .category-head {
        background: var(--primary-100);
        border-bottom: 1px solid var(--line);
        padding: 40px 0 36px;
    }
    .category-head h1 {
        font-size: clamp(1.8rem, 4vw, 2.4rem);
        font-weight: 800;
        color: var(--ink);
        letter-spacing: -0.02em;
        line-height: 1.3;
        margin-bottom: 10px;
    }
    .category-head .category-desc {
        font-size: 1rem;
        color: var(--muted);
        max-width: 720px;
        line-height: 1.8;
    }
    /* Section Base */
    .section {
        padding: 64px 0;
    }
    .section-alt {
        background: var(--surface);
    }
    .section-accent {
        background: var(--primary-100);
    }
    .section-title {
        font-size: clamp(1.5rem, 3vw, 1.9rem);
        font-weight: 800;
        color: var(--ink);
        letter-spacing: -0.015em;
        line-height: 1.35;
        margin-bottom: 12px;
    }
    .section-subtitle {
        font-size: 0.95rem;
        color: var(--muted);
        max-width: 640px;
        line-height: 1.75;
        margin-bottom: 32px;
    }
    /* Filter Bar */
    .filter-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        padding: 16px 20px;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        margin-bottom: 28px;
    }
    .filter-tabs {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .filter-chip {
        padding: 8px 18px;
        border-radius: 999px;
        font-size: 0.88rem;
        font-weight: 500;
        color: var(--muted);
        background: var(--bg);
        border: 1px solid var(--line);
        transition: all var(--transition);
        white-space: nowrap;
    }
    .filter-chip:hover {
        border-color: var(--primary);
        color: var(--primary);
    }
    .filter-chip.active {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        font-weight: 600;
    }
    .sort-select {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: var(--muted);
        white-space: nowrap;
    }
    .sort-select select {
        width: auto;
        padding: 9px 14px;
        border-radius: 999px;
        background: var(--surface);
        border: 1px solid var(--line);
        font-size: 0.88rem;
        color: var(--ink);
        cursor: pointer;
    }
    /* Content List Cards */
    .content-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .content-card {
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all var(--transition);
        display: flex;
        flex-direction: column;
    }
    .content-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: var(--primary-100);
    }
    .content-card .card-image {
        position: relative;
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--primary-100);
    }
    .content-card .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition);
    }
    .content-card:hover .card-image img {
        transform: scale(1.03);
    }
    .content-card .card-body {
        padding: 20px 22px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .content-card .card-title {
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 10px;
        line-height: 1.45;
        transition: color var(--transition);
    }
    .content-card:hover .card-title {
        color: var(--primary);
    }
    .content-card .card-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.82rem;
        color: var(--muted);
        margin-bottom: 12px;
    }
    .content-card .card-desc {
        font-size: 0.92rem;
        color: var(--muted);
        line-height: 1.75;
        margin-bottom: 16px;
        flex: 1;
    }
    .content-card .card-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 16px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        padding: 4px 12px;
        border-radius: 999px;
        font-size: 0.78rem;
        font-weight: 500;
        background: var(--primary-100);
        color: var(--primary-600);
        transition: all var(--transition);
    }
    .badge:hover {
        background: var(--primary);
        color: #fff;
    }
    .badge-accent {
        background: var(--accent);
        color: #fff;
    }
    .badge-accent:hover {
        background: var(--accent-600);
        color: #fff;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 24px;
        border-radius: 999px;
        font-size: 0.92rem;
        font-weight: 600;
        transition: all var(--transition);
        text-align: center;
        white-space: nowrap;
        line-height: 1.4;
        min-height: 46px;
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
        border: 1px solid var(--primary);
    }
    .btn-primary:hover {
        background: var(--primary-600);
        border-color: var(--primary-600);
        color: #fff;
    }
    .btn-accent {
        background: var(--accent);
        color: #fff;
        border: 1px solid var(--accent);
    }
    .btn-accent:hover {
        background: var(--accent-600);
        border-color: var(--accent-600);
        color: #fff;
    }
    .btn-outline {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--primary);
    }
    .btn-outline:hover {
        background: var(--primary);
        color: #fff;
    }
    .btn-sm {
        padding: 9px 18px;
        font-size: 0.85rem;
        min-height: 38px;
    }
    .btn:focus-visible {
        outline: 3px solid rgba(46,139,87,0.35);
        outline-offset: 2px;
    }
    .btn:active {
        transform: translateY(1px);
    }
    /* Topic Scroll */
    .topic-scroll {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        overflow-x: auto;
        padding-bottom: 8px;
        scroll-snap-type: x proximity;
    }
    .topic-card {
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all var(--transition);
        scroll-snap-align: start;
        min-width: 240px;
    }
    .topic-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: var(--primary-100);
    }
    .topic-card .topic-image {
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--primary-100);
    }
    .topic-card .topic-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition);
    }
    .topic-card:hover .topic-image img {
        transform: scale(1.03);
    }
    .topic-card .topic-body {
        padding: 16px 18px 18px;
    }
    .topic-card .topic-name {
        font-size: 1rem;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 6px;
    }
    .topic-card .topic-count {
        font-size: 0.82rem;
        color: var(--muted);
    }
    /* Guarantee Strip */
    .guarantee-strip {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        padding: 28px 30px;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
    }
    .guarantee-item {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 8px 4px;
    }
    .guarantee-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: var(--primary-100);
        color: var(--primary);
        font-size: 1.2rem;
        flex-shrink: 0;
    }
    .guarantee-item .guarantee-text {
        font-size: 0.92rem;
        color: var(--muted);
        line-height: 1.5;
    }
    .guarantee-item .guarantee-text strong {
        display: block;
        color: var(--ink);
        font-size: 0.95rem;
        margin-bottom: 2px;
    }
    /* Ranking List */
    .ranking-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .ranking-item {
        display: flex;
        align-items: center;
        gap: 18px;
        padding: 14px 18px;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        transition: all var(--transition);
        cursor: pointer;
    }
    .ranking-item:hover {
        background: var(--primary-100);
        border-color: var(--primary-100);
        transform: translateX(4px);
    }
    .ranking-item .rank-num {
        font-size: 1.6rem;
        font-weight: 800;
        color: var(--accent);
        min-width: 48px;
        text-align: center;
        letter-spacing: -0.03em;
    }
    .ranking-item .rank-num.rank-green {
        color: var(--primary);
    }
    .ranking-item .rank-info {
        flex: 1;
    }
    .ranking-item .rank-title {
        font-size: 0.98rem;
        font-weight: 600;
        color: var(--ink);
        margin-bottom: 4px;
    }
    .ranking-item .rank-desc {
        font-size: 0.84rem;
        color: var(--muted);
    }
    .ranking-item .rank-date {
        font-size: 0.8rem;
        color: var(--muted);
        white-space: nowrap;
    }
    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all var(--transition);
    }
    .faq-item.open {
        border-left: 4px solid var(--primary);
        box-shadow: var(--shadow-sm);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 20px;
        cursor: pointer;
        font-size: 0.98rem;
        font-weight: 600;
        color: var(--ink);
        transition: color var(--transition);
        width: 100%;
        text-align: left;
        background: transparent;
    }
    .faq-question:hover {
        color: var(--primary);
    }
    .faq-icon {
        font-size: 1.3rem;
        color: var(--muted);
        transition: transform var(--transition);
        flex-shrink: 0;
    }
    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        color: var(--primary);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition), padding var(--transition);
        padding: 0 20px;
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 0 20px 18px;
    }
    .faq-answer p {
        font-size: 0.92rem;
        color: var(--muted);
        line-height: 1.8;
    }
    /* Contact CTA */
    .contact-cta {
        background: var(--footer-bg);
        border-radius: var(--radius-xl);
        padding: 48px;
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 40px;
        align-items: center;
    }
    .contact-cta .cta-text h2 {
        font-size: clamp(1.5rem, 3vw, 1.9rem);
        font-weight: 800;
        color: #fff;
        margin-bottom: 14px;
        letter-spacing: -0.015em;
    }
    .contact-cta .cta-text p {
        color: var(--footer-text);
        font-size: 0.95rem;
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .contact-cta .cta-locate {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--footer-text);
        font-size: 0.9rem;
    }
    .contact-cta .cta-form {
        background: var(--surface);
        border-radius: var(--radius-lg);
        padding: 28px;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .contact-cta .cta-form label {
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--ink);
    }
    .contact-cta .cta-form input,
    .contact-cta .cta-form textarea {
        background: var(--bg);
        border-color: var(--line);
    }
    .contact-cta .cta-form textarea {
        min-height: 90px;
        resize: vertical;
    }
    /* Footer */
    .site-footer {
        background: var(--footer-bg);
        color: var(--footer-text);
        padding: 56px 0 24px;
        margin-top: 72px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 36px;
        margin-bottom: 40px;
    }
    .footer-brand {
        font-size: 1.3rem;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
        letter-spacing: -0.02em;
    }
    .footer-brand .num91-footer {
        color: var(--accent);
    }
    .footer-desc {
        font-size: 0.88rem;
        line-height: 1.75;
        color: var(--footer-text);
        max-width: 300px;
    }
    .footer-col h4 {
        font-size: 0.95rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-col a {
        display: block;
        color: var(--footer-text);
        font-size: 0.88rem;
        padding: 5px 0;
        transition: color var(--transition);
    }
    .footer-col a:hover {
        color: var(--accent);
    }
    .footer-bottom {
        border-top: 1px solid rgba(219,235,224,0.15);
        padding-top: 20px;
        font-size: 0.82rem;
        color: rgba(219,235,224,0.7);
        text-align: center;
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .content-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .topic-scroll {
            grid-template-columns: repeat(2, 1fr);
        }
        .guarantee-strip {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 768px) {
        .main-nav {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--surface);
            flex-direction: column;
            padding: 16px 20px;
            gap: 4px;
            border-bottom: 1px solid var(--line);
            box-shadow: var(--shadow-md);
        }
        .main-nav.open {
            display: flex;
        }
        .main-nav a {
            padding: 12px 4px;
            font-size: 1rem;
            border-bottom: 1px solid var(--line);
        }
        .main-nav a:last-child {
            border-bottom: none;
        }
        .main-nav a.active::after {
            display: none;
        }
        .hamburger {
            display: flex;
        }
        .nav-right .locate-btn {
            padding: 8px 14px;
            font-size: 0.82rem;
        }
        .content-grid {
            grid-template-columns: 1fr;
        }
        .topic-scroll {
            grid-template-columns: repeat(2, 1fr);
            overflow-x: auto;
        }
        .guarantee-strip {
            grid-template-columns: 1fr;
        }
        .contact-cta {
            grid-template-columns: 1fr;
            padding: 32px 24px;
        }
        .ranking-item {
            flex-wrap: wrap;
            gap: 10px;
        }
        .ranking-item .rank-date {
            margin-left: 66px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .section {
            padding: 44px 0;
        }
        .category-head {
            padding: 28px 0 24px;
        }
    }
    @media (max-width: 520px) {
        .topic-scroll {
            grid-template-columns: 1fr;
        }
        .filter-bar {
            flex-direction: column;
            align-items: stretch;
        }
        .sort-select {
            justify-content: space-between;
        }
        .contact-cta {
            padding: 24px 16px;
        }
        .contact-cta .cta-form {
            padding: 20px;
        }
        .header-inner {
            height: 64px;
        }
        .main-nav.open {
            top: 64px;
        }
        .logo {
            font-size: 1.2rem;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 0.95rem;
        }
    }