/* roulang page: index */
:root {
            --color-bg: #F7F4EF;
            --color-surface: #FFFFFF;
            --color-primary: #3D2C23;
            --color-primary-light: #6B4F3A;
            --color-secondary: #4F6B5D;
            --color-accent: #B7865A;
            --color-text: #1F1B17;
            --color-muted: #6F6A64;
            --color-line: rgba(31, 27, 23, 0.08);
            --color-line-strong: rgba(31, 27, 23, 0.14);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
            --shadow-lg: 0 16px 32px rgba(0,0,0,0.08);
            --transition: 0.3s ease-out;
            --container: 1200px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease-out;
        }

        a:hover {
            color: var(--color-secondary);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: 10px;
            transition: all 0.3s ease-out;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-accent);
            text-transform: uppercase;
            background: rgba(183, 134, 90, 0.1);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 720px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--color-muted);
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all 0.3s ease-out;
            border: 2px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--color-primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(61, 44, 35, 0.2);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: #a3744a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(183, 134, 90, 0.3);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.8);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-block {
            width: 100%;
        }

        .badge {
            display: inline-block;
            background: rgba(79, 107, 93, 0.1);
            color: var(--color-secondary);
            font-size: 13px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 6px;
            white-space: nowrap;
        }

        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(247, 244, 239, 0.55);
            backdrop-filter: blur(16px) saturate(160%);
            -webkit-backdrop-filter: blur(16px) saturate(160%);
            border-bottom: 1px solid var(--color-line);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            transition: all 0.35s ease-out;
        }

        header.scrolled {
            background: rgba(247, 244, 239, 0.96);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            border-bottom-color: var(--color-line-strong);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-main {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 1px;
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            color: var(--color-accent);
            letter-spacing: 1px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 2px;
            transition: color 0.3s ease-out;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.3s ease-out;
        }

        .nav-link:hover {
            color: var(--color-accent);
        }

        .nav-link:hover::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        .nav-cta {
            padding: 10px 24px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 8px;
            z-index: 1001;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease-out;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background-color: var(--color-primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(61, 44, 35, 0.75) 0%, rgba(61, 44, 35, 0.55) 50%, rgba(61, 44, 35, 0.8) 100%);
            z-index: 1;
        }

        .hero-grid {
            position: absolute;
            inset: 0;
            background:
                repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 80px),
                repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 80px);
            opacity: 0.12;
            z-index: 2;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 920px;
            padding: 120px 24px 80px;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 3px;
            padding: 6px 20px;
            border-radius: 999px;
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-meta {
            display: flex;
            gap: 28px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 46px;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-meta span::before {
            content: "";
            width: 5px;
            height: 5px;
            background: var(--color-accent);
            border-radius: 50%;
            display: inline-block;
        }

        .scroll-down {
            position: absolute;
            bottom: 36px;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 50px;
            border: 2px solid rgba(255, 255, 255, 0.35);
            border-radius: 999px;
            display: flex;
            justify-content: center;
            padding-top: 10px;
            z-index: 5;
            transition: border-color 0.3s;
        }

        .scroll-down:hover {
            border-color: rgba(255, 255, 255, 0.7);
        }

        .scroll-down span {
            width: 4px;
            height: 8px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.5);
            animation: scrollDownAnim 1.8s infinite;
        }

        @keyframes scrollDownAnim {
            0% {
                opacity: 0;
                transform: translateY(0);
            }
            40% {
                opacity: 1;
            }
            100% {
                opacity: 0;
                transform: translateY(18px);
            }
        }

        .stats-section {
            padding: 96px 0 64px;
            position: relative;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }

        .stat-card {
            position: relative;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease-out;
            overflow: hidden;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }

        .stat-coord {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-muted);
            background: var(--color-bg);
            padding: 2px 10px;
            border-radius: 6px;
            letter-spacing: 1px;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .stat-number span {
            font-size: 20px;
            font-weight: 600;
            margin-left: 2px;
            vertical-align: top;
        }

        .stat-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }

        .stat-trend {
            font-size: 13px;
            color: var(--color-muted);
        }

        .services-section {
            padding: 80px 0;
            background: var(--color-surface);
        }

        .service-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.3s ease-out;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .service-card .card-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .service-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease-out;
        }

        .service-card:hover .card-img img {
            transform: scale(1.03);
        }

        .service-card .card-coord {
            position: absolute;
            top: 16px;
            left: 16px;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
            background: rgba(61, 44, 35, 0.75);
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 1px;
            backdrop-filter: blur(4px);
            z-index: 2;
        }

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

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .service-card .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .service-card .tags span {
            font-size: 12px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(79, 107, 93, 0.08);
            padding: 4px 12px;
            border-radius: 6px;
        }

        .service-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.3s ease-out;
        }

        .service-card .card-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }

        .service-row+.service-row {
            margin-top: 32px;
        }

        .offset-top {
            margin-top: 48px;
        }

        .compare-section {
            padding: 96px 0;
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }

        .compare-section::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: repeating-linear-gradient(45deg, rgba(61, 44, 35, 0.02) 0px, rgba(61, 44, 35, 0.02) 4px, transparent 4px, transparent 20px);
            border-radius: 50%;
            pointer-events: none;
        }

        .compare-wrap {
            position: relative;
            padding: 40px 0 20px;
        }

        .compare-line {
            position: absolute;
            top: 60px;
            bottom: 60px;
            left: 50%;
            border-left: 2px dashed var(--color-line-strong);
            transform: translateX(-50%);
            z-index: 0;
        }

        .compare-line::before,
        .compare-line::after {
            content: "";
            position: absolute;
            left: -5px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        .compare-line::before {
            top: 0;
        }

        .compare-line::after {
            bottom: 0;
        }

        .compare-col {
            position: relative;
            z-index: 1;
            border-radius: var(--radius);
            padding: 32px 36px;
            min-height: 320px;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease-out;
        }

        .compare-col-weak {
            background: #EFEDE8;
            border: 1px solid var(--color-line);
        }

        .compare-col-strong {
            background: rgba(79, 107, 93, 0.06);
            border: 1px solid var(--color-secondary);
            box-shadow: 0 4px 20px rgba(79, 107, 93, 0.08);
        }

        .compare-col h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-col-weak h3 {
            color: var(--color-muted);
        }

        .compare-col-strong h3 {
            color: var(--color-secondary);
        }

        .compare-col-strong h3::before {
            content: "";
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            display: inline-block;
        }

        .compare-col ul {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .compare-col li {
            display: flex;
            align-items: baseline;
            gap: 12px;
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.6;
        }

        .compare-col li span {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            min-width: 76px;
        }

        .compare-col-strong li span {
            color: var(--color-secondary);
        }

        .news-section {
            padding: 96px 0;
            background: var(--color-surface);
        }

        .news-feature {
            display: flex;
            flex-direction: column;
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            padding: 32px;
            height: 100%;
            transition: all 0.3s ease-out;
            position: relative;
            overflow: hidden;
        }

        .news-feature:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }

        .news-feature-tag {
            align-self: flex-start;
            background: var(--color-surface);
            border: 1px solid var(--color-line-strong);
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            padding: 4px 14px;
            border-radius: 6px;
            margin-bottom: 16px;
        }

        .news-feature h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .news-feature p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            flex: 1;
        }

        .news-feature-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--color-line);
        }

        .news-feature-meta time {
            font-size: 13px;
            color: var(--color-muted);
        }

        .news-feature-meta .arrow {
            font-size: 20px;
            color: var(--color-accent);
            transition: transform 0.3s ease-out;
        }

        .news-feature:hover .news-feature-meta .arrow {
            transform: translateX(6px);
        }

        .news-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
            height: 100%;
        }

        .news-row {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            padding: 22px 24px;
            transition: all 0.3s ease-out;
        }

        .news-row:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .news-row-content {
            flex: 1;
            min-width: 0;
        }

        .news-row-content h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-row-content p {
            font-size: 13px;
            color: var(--color-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-row-meta {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
            flex-shrink: 0;
        }

        .news-row-meta time {
            font-size: 12px;
            color: var(--color-muted);
        }

        .news-empty {
            background: var(--color-bg);
            border: 1px dashed var(--color-line-strong);
            border-radius: var(--radius);
            padding: 60px 24px;
            text-align: center;
            color: var(--color-muted);
            font-size: 15px;
        }

        .faq-section {
            padding: 96px 0;
            background: var(--color-bg);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease-out;
        }

        .faq-item:hover {
            border-color: var(--color-line-strong);
        }

        .faq-item.active {
            border-color: var(--color-secondary);
            background: rgba(79, 107, 93, 0.02);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            background: none;
            border: none;
            border-radius: 0;
            transition: color 0.3s ease-out;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-item.active .faq-question {
            color: var(--color-secondary);
        }

        .faq-q {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-accent);
            background: rgba(183, 134, 90, 0.1);
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .faq-icon {
            margin-left: auto;
            width: 24px;
            height: 24px;
            position: relative;
            flex-shrink: 0;
            transition: transform 0.3s ease-out;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--color-muted);
            border-radius: 2px;
            transition: all 0.3s ease-out;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-icon::before,
        .faq-item.active .faq-icon::after {
            background: var(--color-secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out;
        }

        .faq-answer-inner {
            padding: 0 28px 22px 80px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.8;
        }

        .contact-section {
            padding: 96px 0;
            background: var(--color-primary);
            position: relative;
            overflow: hidden;
        }

        .contact-section::before {
            content: "";
            position: absolute;
            top: -60px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .contact-wrap {
            background: var(--color-surface);
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            position: relative;
            z-index: 2;
        }

        .contact-info {
            padding: 48px 16px 48px 48px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .contact-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .contact-info>p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .contact-detail {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px;
            background: var(--color-bg);
            border-radius: 12px;
            border: 1px solid var(--color-line);
        }

        .contact-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            min-width: 64px;
        }

        .contact-item span:last-child {
            font-size: 14px;
            color: var(--color-muted);
        }

        .contact-form {
            padding: 48px;
            background: var(--color-surface);
        }

        .contact-form label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            display: block;
        }

        .contact-form .columns {
            margin-bottom: 18px;
        }

        .contact-form input,
        .contact-form select,
        .contact-form textarea {
            width: 100%;
            border: 1px solid var(--color-line-strong);
            background: var(--color-bg);
            padding: 12px 16px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--color-text);
            transition: all 0.3s ease-out;
        }

        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: rgba(111, 106, 100, 0.6);
        }

        .contact-form input:focus,
        .contact-form select:focus,
        .contact-form textarea:focus {
            outline: none;
            border-color: var(--color-secondary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(79, 107, 93, 0.12);
        }

        .contact-form textarea {
            resize: vertical;
            min-height: 90px;
        }

        .privacy-note {
            font-size: 12px;
            color: var(--color-muted);
            text-align: center;
            margin-top: 12px;
        }

        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.015) 0px, rgba(255, 255, 255, 0.015) 1px, transparent 1px, transparent 60px);
            pointer-events: none;
        }

        .footer-logo {
            display: flex;
            flex-direction: column;
            margin-bottom: 16px;
        }

        .footer-logo .logo-main {
            color: #fff;
            font-size: 22px;
        }

        .footer-logo .logo-sub {
            color: var(--color-accent);
            font-size: 13px;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 340px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: all 0.3s ease-out;
        }

        .site-footer ul a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 48px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0 auto;
        }

        .fade-up {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .stat-card:nth-child(4),
            .stat-card:nth-child(5) {
                grid-column: span 1;
            }

            .offset-top {
                margin-top: 20px;
            }

            .hero h1 {
                font-size: 44px;
            }

            .contact-info {
                padding: 36px;
            }

            .contact-form {
                padding: 36px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }

            .header-inner {
                height: 64px;
            }

            .logo-main {
                font-size: 18px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(247, 244, 239, 0.98);
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 20px;
                border-bottom: 1px solid var(--color-line-strong);
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease-out;
                z-index: 999;
            }

            .main-nav.nav-open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-link {
                width: 100%;
                font-size: 16px;
                padding: 10px 0;
            }

            .nav-cta {
                margin-top: 8px;
                width: 100%;
            }

            .hero {
                min-height: 92vh;
            }

            .hero-content {
                padding: 100px 20px 60px;
            }

            .hero h1 {
                font-size: 30px;
                line-height: 1.3;
            }

            .hero-sub {
                font-size: 15px;
                line-height: 1.7;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }

            .hero-meta {
                flex-direction: column;
                gap: 10px;
            }

            .scroll-down {
                bottom: 20px;
            }

            .stats-section {
                padding: 56px 0 32px;
            }

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

            .stat-card {
                padding: 20px 16px;
            }

            .stat-number {
                font-size: 32px;
            }

            .stat-card:nth-child(5) {
                grid-column: span 2;
            }

            .services-section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 28px;
            }

            .section-head h2 {
                font-size: 25px;
            }

            .service-card .card-img {
                height: 180px;
            }

            .service-card h3 {
                font-size: 18px;
            }

            .offset-top {
                margin-top: 16px;
            }

            .compare-section {
                padding: 56px 0;
            }

            .compare-line {
                display: none;
            }

            .compare-col {
                padding: 24px;
                min-height: auto;
                margin-bottom: 16px;
            }

            .compare-col+.compare-col {
                margin-top: 0;
            }

            .news-section {
                padding: 56px 0;
            }

            .news-feature {
                margin-bottom: 16px;
            }

            .news-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 18px;
            }

            .news-row-content h3,
            .news-row-content p {
                white-space: normal;
                overflow: visible;
            }

            .news-row-meta {
                flex-direction: row;
                align-items: center;
                gap: 12px;
            }

            .faq-section {
                padding: 56px 0;
            }

            .faq-question {
                padding: 18px 16px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 16px 18px 60px;
            }

            .contact-section {
                padding: 56px 0;
            }

            .contact-info {
                padding: 24px;
            }

            .contact-form {
                padding: 24px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 25px;
            }

            .hero-sub {
                font-size: 14px;
            }

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

            .stat-card:nth-child(5) {
                grid-column: span 1;
            }

            .stat-number {
                font-size: 36px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .compare-col li {
                font-size: 14px;
                flex-direction: column;
                gap: 2px;
            }

            .compare-col li span {
                min-width: auto;
            }

            .contact-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: article */
:root {
            --color-bg: #F7F4EF;
            --color-surface: #FFFFFF;
            --color-primary: #3D2C23;
            --color-primary-light: #6B4F3A;
            --color-secondary: #4F6B5D;
            --color-accent: #B7865A;
            --color-text: #1F1B17;
            --color-muted: #6F6A64;
            --color-line: rgba(31, 27, 23, 0.08);
            --color-line-strong: rgba(31, 27, 23, 0.14);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.08);
            --transition: 0.3s ease-out;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        #siteHeader {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(247, 244, 239, 0.55);
            backdrop-filter: blur(16px) saturate(160%);
            -webkit-backdrop-filter: blur(16px) saturate(160%);
            border-bottom: 1px solid var(--color-line);
            transition: background 0.4s ease, box-shadow 0.4s ease;
        }

        #siteHeader.scrolled {
            background: rgba(247, 244, 239, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            gap: 2px;
        }

        .logo-main {
            font-size: 21px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        .logo-sub {
            font-size: 12px;
            color: var(--color-muted);
            font-weight: 600;
            letter-spacing: 0.1em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 4px 0;
        }

        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            width: 100%;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #FFFFFF;
        }

        .btn-accent:hover {
            background: #9C6B46;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(183, 134, 90, 0.32);
            color: #FFFFFF;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-line-strong);
            color: var(--color-text);
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .nav-cta {
            padding: 9px 22px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }

        .nav-toggle:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            height: 360px;
            background-size: cover;
            background-position: center;
            position: relative;
            display: flex;
            align-items: flex-end;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(61, 44, 35, 0.45) 0%, rgba(61, 44, 35, 0.25) 60%, rgba(61, 44, 35, 0.6) 100%);
        }

        .terrain-grid {
            position: absolute;
            inset: 0;
            background-image:
                repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0, rgba(255, 255, 255, 0.035) 1px, transparent 1px, transparent 40px),
                repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0, rgba(255, 255, 255, 0.035) 1px, transparent 1px, transparent 40px);
            pointer-events: none;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 80px 0 36px;
        }

        .banner-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: rgba(247, 244, 239, 0.9);
            background: rgba(61, 44, 35, 0.45);
            border: 1px solid rgba(247, 244, 239, 0.25);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
            letter-spacing: 0.06em;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 56px 0 80px;
        }

        .article-header h1 {
            font-size: 38px;
            line-height: 1.22;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--color-muted);
            transition: color 0.3s;
        }

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

        .breadcrumb .sep {
            margin: 0 10px;
            color: var(--color-line-strong);
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            display: inline-block;
            vertical-align: bottom;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 14px;
            color: var(--color-muted);
            padding-bottom: 24px;
            border-bottom: 1px solid var(--color-line);
            flex-wrap: wrap;
        }

        .meta-cat {
            display: inline-flex;
            align-items: center;
            background: rgba(183, 134, 90, 0.12);
            color: var(--color-accent);
            padding: 4px 14px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 13px;
        }

        .meta-time {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-time::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 4px;
            background: var(--color-line-strong);
            border-radius: 50%;
            margin-right: 4px;
        }

        /* ===== 正文区域 ===== */
        .article-content {
            padding: 36px 0 20px;
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text);
        }

        .article-content p {
            margin-bottom: 24px;
        }

        .article-content h2 {
            font-size: 27px;
            font-weight: 700;
            margin: 42px 0 16px;
            color: var(--color-primary);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-line);
        }

        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--color-primary);
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 24px 0 10px;
            color: var(--color-primary);
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 28px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content blockquote {
            border-left: 3px solid var(--color-accent);
            padding: 18px 22px;
            background: rgba(183, 134, 90, 0.07);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--color-muted);
            margin: 28px 0;
            font-style: italic;
            font-size: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            padding-left: 26px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content a {
            color: var(--color-accent);
            border-bottom: 1px solid rgba(183, 134, 90, 0.3);
            transition: border-color 0.3s;
        }

        .article-content a:hover {
            border-color: var(--color-accent);
        }

        .article-content pre {
            background: var(--color-primary);
            color: #F7F4EF;
            border-radius: var(--radius);
            padding: 20px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }

        .article-content code {
            font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--color-line);
            padding: 12px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--color-bg);
            font-weight: 600;
            color: var(--color-primary);
        }

        /* 无文章状态 */
        .content-not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--color-surface);
            border-radius: var(--radius);
            border: 1px dashed var(--color-line-strong);
        }

        .content-not-found p {
            font-size: 18px;
            color: var(--color-muted);
            margin-bottom: 24px;
        }

        .content-not-found a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 24px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-pill);
            transition: all 0.3s;
        }

        .content-not-found a:hover {
            background: rgba(183, 134, 90, 0.08);
            border-color: var(--color-accent);
        }

        /* ===== 返回入口 ===== */
        .article-nav-links {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0 0;
            border-top: 1px solid var(--color-line);
            margin-top: 32px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-muted);
            font-weight: 500;
            padding: 8px 4px;
            transition: color 0.3s;
        }

        .article-nav-links a:hover {
            color: var(--color-accent);
        }

        .article-nav-links .back-link {
            color: var(--color-primary);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 80px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }

        .section-head {
            margin-bottom: 36px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .section-head p {
            color: var(--color-muted);
            font-size: 15px;
        }

        .related-card {
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-line-strong);
        }

        .related-card .card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            display: block;
        }

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

        .related-card .card-coord {
            font-family: 'SFMono-Regular', Consolas, monospace;
            font-size: 12px;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.08em;
            margin-bottom: 8px;
        }

        .related-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
            line-height: 1.4;
        }

        .related-card p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.65;
            flex: 1;
        }

        .related-card .card-link {
            margin-top: 14px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }

        .related-card .card-link:hover {
            gap: 10px;
        }

        /* ===== CTA 区块 ===== */
        .article-cta {
            padding: 80px 0;
            background: var(--color-primary);
            position: relative;
            overflow: hidden;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .article-cta h2 {
            color: #F7F4EF;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .article-cta p {
            color: rgba(247, 244, 239, 0.7);
            font-size: 16px;
            max-width: 540px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(247, 244, 239, 0.8);
            padding: 64px 0 30px;
        }

        .footer-logo {
            display: flex;
            flex-direction: column;
            margin-bottom: 14px;
            gap: 2px;
        }

        .site-footer .footer-logo .logo-main {
            color: #F7F4EF;
            font-size: 22px;
            font-weight: 800;
        }

        .site-footer .footer-logo .logo-sub {
            color: rgba(247, 244, 239, 0.55);
            font-size: 13px;
            font-weight: 600;
        }

        .site-footer p {
            font-size: 14px;
            color: rgba(247, 244, 239, 0.6);
            line-height: 1.7;
        }

        .site-footer h4 {
            color: #F7F4EF;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul a {
            color: rgba(247, 244, 239, 0.6);
            font-size: 14px;
            transition: color 0.3s;
        }

        .site-footer ul a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(247, 244, 239, 0.12);
            margin-top: 48px;
            padding-top: 22px;
            text-align: center;
            font-size: 13px;
            color: rgba(247, 244, 239, 0.45);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }

            .article-header h1 {
                font-size: 34px;
            }
        }

        @media screen and (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(247, 244, 239, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 18px;
                border-bottom: 1px solid var(--color-line);
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav .nav-link {
                font-size: 17px;
                width: 100%;
                padding: 8px 0;
            }

            .nav-cta {
                width: auto;
                margin-top: 6px;
            }

            .nav-toggle {
                display: flex;
            }

            .article-banner {
                height: 280px;
            }

            .article-header h1 {
                font-size: 28px;
            }

            .article-main {
                padding: 40px 0 60px;
            }

            .article-content {
                font-size: 16px;
                line-height: 1.75;
            }

            .article-content h2 {
                font-size: 23px;
            }

            .related-section {
                padding: 56px 0;
            }

            .article-cta {
                padding: 60px 0;
            }

            .article-cta h2 {
                font-size: 24px;
            }

            .site-footer {
                padding: 48px 0 24px;
            }

            .footer-bottom {
                margin-top: 36px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .container-narrow {
                padding: 0 18px;
            }

            .header-inner {
                height: 64px;
            }

            .logo-main {
                font-size: 18px;
            }

            .logo-sub {
                font-size: 11px;
            }

            .article-banner {
                height: 220px;
            }

            .article-header h1 {
                font-size: 24px;
                line-height: 1.3;
            }

            .breadcrumb {
                font-size: 13px;
            }

            .breadcrumb .current {
                max-width: 180px;
            }

            .article-meta {
                font-size: 13px;
                gap: 10px;
            }

            .article-nav-links {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-card .card-img {
                height: 140px;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg: #F7F4EF;
            --color-surface: #FFFFFF;
            --color-primary: #3D2C23;
            --color-primary-light: #6B4F3A;
            --color-secondary: #4F6B5D;
            --color-accent: #B7865A;
            --color-text: #1F1B17;
            --color-muted: #6F6A64;
            --color-line: rgba(31, 27, 23, 0.08);
            --color-line-strong: rgba(31, 27, 23, 0.14);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 999px;
            --radius-input: 10px;
            --radius-badge: 6px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.08);
            --transition: 0.3s ease-out;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--color-accent);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

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

        /* ===== Header / Navigation ===== */
        #siteHeader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(247, 244, 239, 0.55);
            backdrop-filter: blur(16px) saturate(160%);
            -webkit-backdrop-filter: blur(16px) saturate(160%);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
            transition: background var(--transition), box-shadow var(--transition);
        }

        #siteHeader.scrolled {
            background: rgba(247, 244, 239, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-main {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 1px;
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 400;
            color: var(--color-muted);
            letter-spacing: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 4px 0;
        }

        .main-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width var(--transition);
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            width: 100%;
        }

        .main-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-cta {
            padding: 10px 24px !important;
            font-size: 14px !important;
            font-weight: 600 !important;
            border-radius: var(--radius-btn) !important;
            background: var(--color-accent) !important;
            color: #fff !important;
            border: none !important;
            transition: background var(--transition), transform var(--transition) !important;
        }

        .nav-cta:hover {
            background: var(--color-primary) !important;
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            min-height: 62vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            margin-top: 72px;
            padding: 80px 0;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(61, 44, 35, 0.72), rgba(61, 44, 35, 0.55) 50%, rgba(247, 244, 239, 0.92) 100%);
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: 
                linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 36px 36px;
            opacity: 0.45;
            pointer-events: none;
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }

        .category-hero .badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.28);
            color: #F7F4EF;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .category-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 18px;
            letter-spacing: 2px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .category-hero p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            max-width: 640px;
            margin: 0 auto;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.2);
        }

        .category-hero .hero-actions {
            margin-top: 32px;
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.75);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* ===== 区块通用 ===== */
        .section {
            padding: 96px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .section-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(183, 134, 90, 0.12);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .section-head p {
            margin-top: 12px;
            color: var(--color-muted);
            font-size: 16px;
        }

        /* ===== 分类介绍 ===== */
        .intro-section {
            padding: 96px 0;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 20px;
        }

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

        .intro-text .highlight {
            color: var(--color-text);
            font-weight: 600;
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary-light);
            background: rgba(107, 79, 58, 0.08);
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-line);
        }

        .intro-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-image img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .intro-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(61, 44, 35, 0.18), transparent 60%);
        }

        /* ===== 图文卡片组 ===== */
        .cards-section {
            padding: 96px 0;
            background: var(--color-bg);
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .scene-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(183, 134, 90, 0.4);
        }

        .scene-card .card-coord {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            background: rgba(61, 44, 35, 0.72);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 1px;
        }

        .scene-card .card-image {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

        .scene-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scene-card:hover .card-image img {
            transform: scale(1.04);
        }

        .scene-card .card-body {
            padding: 28px;
        }

        .scene-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .scene-card p {
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .scene-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .scene-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-secondary);
        }

        .scene-card .card-link i {
            font-size: 13px;
            transition: transform var(--transition);
        }

        .scene-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 流程区块 ===== */
        .process-section {
            padding: 96px 0;
            background: var(--color-primary);
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: 
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }

        .process-section .section-head h2 {
            color: #F7F4EF;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.72);
        }

        .process-section .section-head .section-badge {
            color: var(--color-accent);
            background: rgba(183, 134, 90, 0.2);
        }

        .process-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .process-step {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(183, 134, 90, 0.25);
            color: var(--color-accent);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            border: 1px solid rgba(183, 134, 90, 0.4);
        }

        .process-step h3 {
            color: #F7F4EF;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== FAQ 区块 ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--color-bg);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item.active {
            border-color: rgba(183, 134, 90, 0.45);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition);
        }

        .faq-question .q-icon {
            color: var(--color-accent);
            font-weight: 700;
            margin-right: 12px;
        }

        .faq-question .q-text {
            flex: 1;
        }

        .faq-toggle-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-toggle-icon::before,
        .faq-toggle-icon::after {
            content: "";
            position: absolute;
            background: var(--color-accent);
            border-radius: 2px;
            transition: transform var(--transition);
        }

        .faq-toggle-icon::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }

        .faq-toggle-icon::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
        }

        .faq-item.active .faq-toggle-icon::after {
            transform: scaleY(0);
        }

        .faq-item.active .faq-question {
            color: var(--color-secondary);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-answer p {
            color: var(--color-muted);
            font-size: 15px;
            line-height: 1.8;
            padding-left: 24px;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(61, 44, 35, 0.06), rgba(183, 134, 90, 0.1));
            border: 1px solid var(--color-line-strong);
            border-radius: var(--radius-lg);
            padding: 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: 
                linear-gradient(rgba(61, 44, 35, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(61, 44, 35, 0.04) 1px, transparent 1px);
            background-size: 28px 28px;
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-box p {
            color: var(--color-muted);
            margin-bottom: 28px;
            position: relative;
            z-index: 2;
        }

        .cta-box .btn {
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            padding: 64px 0 28px;
            color: rgba(255, 255, 255, 0.78);
        }

        .site-footer .footer-logo {
            display: flex;
            flex-direction: column;
            margin-bottom: 16px;
        }

        .site-footer .logo-main {
            color: #F7F4EF;
            font-size: 22px;
        }

        .site-footer .logo-sub {
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }

        .site-footer h4 {
            color: #F7F4EF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 移动端 ===== */
        @media (max-width: 1023px) {
            .intro-grid {
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                background: rgba(247, 244, 239, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--color-line);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
            }

            .main-nav.open {
                max-height: 320px;
            }

            .main-nav .nav-link {
                padding: 12px 0;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid var(--color-line);
            }

            .main-nav .nav-cta {
                margin-top: 16px;
                width: 100%;
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
            }

            .category-hero {
                min-height: 55vh;
                margin-top: 64px;
                padding: 60px 0;
            }

            .category-hero h1 {
                font-size: 30px;
                line-height: 1.3;
            }

            .category-hero p {
                font-size: 15px;
            }

            .section,
            .intro-section,
            .cards-section,
            .process-section,
            .faq-section,
            .cta-section {
                padding: 64px 0;
            }

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

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .intro-text h2 {
                font-size: 26px;
            }

            .intro-image img {
                height: 260px;
            }

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

            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .process-step {
                padding: 24px 16px;
            }

            .cta-box {
                padding: 40px 20px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
                max-width: 260px;
                margin-left: auto;
                margin-right: auto;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

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

            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }

            .faq-answer {
                padding: 0 18px 16px;
            }

            .faq-answer p {
                font-size: 14px;
                padding-left: 20px;
            }
        }

        @media (max-width: 640px) {
            .category-hero {
                min-height: 60vh;
            }
        }