/* roulang page: index */
:root {
        --tea: #2d6a4f;
        --tea-dark: #1b4332;
        --tea-light: #40916c;
        --clay: #b08968;
        --amber: #b45309;
        --cream: #f8f4ed;
        --paper: #fffdfa;
        --ink: #27241f;
        --muted: #817a70;
        --border: #e6dfd3;
        --shadow: 0 20px 45px rgba(27, 67, 50, 0.08);
        --radius: 20px;
        --radius-sm: 10px;
    }
    * {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--paper);
        color: var(--ink);
        line-height: 1.75;
        margin: 0;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: color .25s;
    }
    img {
        max-width: 100%;
    }
    button,
    input,
    select,
    textarea {
        font-family: inherit;
    }
    .container-x {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .site-header {
        background: rgba(255, 253, 250, 0.92);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 50;
    }
    .site-header .inner {
        height: 76px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }
    .logo {
        font-size: 1.35rem;
        font-weight: 800;
        color: var(--tea-dark);
        letter-spacing: .02em;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .logo i {
        color: var(--clay);
        font-size: 1.2rem;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 28px;
    }
    .nav-links a.nav-link {
        font-weight: 600;
        color: var(--ink);
        position: relative;
        padding: 6px 0;
    }
    .nav-links a.nav-link.active {
        color: var(--tea);
    }
    .nav-links a.nav-link.active::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: -2px;
        width: 100%;
        height: 2px;
        background: var(--tea);
        border-radius: 2px;
    }
    .menu-toggle {
        display: none;
        background: none;
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 8px 12px;
        font-size: 1.15rem;
        color: var(--ink);
        cursor: pointer;
    }
    .mobile-nav {
        display: none;
        border-top: 1px solid var(--border);
        padding: 12px 24px 16px;
        background: var(--paper);
    }
    .mobile-nav a {
        display: block;
        padding: 10px 0;
        font-weight: 600;
        border-bottom: 1px solid #f0ebe2;
    }
    .breadcrumb {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.8);
        display: flex;
        gap: 6px;
        align-items: center;
        margin-bottom: 18px;
    }
    .breadcrumb a {
        color: rgba(255, 255, 255, 0.75);
    }
    .breadcrumb a:hover {
        color: #fff;
    }
    .hero {
        position: relative;
        background-image: linear-gradient(135deg, rgba(27, 67, 50, 0.92), rgba(45, 106, 79, 0.82)), url('/assets/images/backpic/back-1.jpg');
        background-size: cover;
        background-position: center;
        color: #fff;
        overflow: hidden;
    }
    .hero-slant {
        position: absolute;
        bottom: -1px;
        left: 0;
        width: 100%;
        height: 70px;
        background: var(--paper);
        clip-path: polygon(0 60%, 100% 0, 100% 100%, 0 100%);
        z-index: 2;
    }
    .hero-grid {
        position: relative;
        z-index: 3;
        display: grid;
        grid-template-columns: 1fr 1.2fr 1fr;
        gap: 40px;
        align-items: center;
        padding: 80px 0 120px;
    }
    .hero-stage {
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
        transform: rotate(-0.5deg);
        border: 5px solid rgba(255, 255, 255, 0.35);
    }
    .hero-stage img {
        width: 100%;
        height: 320px;
        object-fit: cover;
        display: block;
    }
    .value-point {
        display: flex;
        gap: 12px;
        margin-bottom: 20px;
    }
    .value-point .icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.12);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.1rem;
        color: #d8f5e6;
        flex-shrink: 0;
    }
    .value-point strong {
        display: block;
        margin-bottom: 4px;
        font-size: 1rem;
    }
    .value-point p {
        margin: 0;
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.78);
    }
    .data-point {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.14);
        border-radius: var(--radius-sm);
        padding: 18px 16px;
        text-align: center;
        margin-bottom: 14px;
        backdrop-filter: blur(4px);
    }
    .data-point .num {
        display: block;
        font-size: 1.7rem;
        font-weight: 800;
        line-height: 1.2;
        color: #fff;
    }
    .data-point .label {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.78);
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.2);
        padding: 6px 14px;
        border-radius: 999px;
        font-size: 0.82rem;
        margin-bottom: 20px;
    }
    .hero-title {
        font-size: clamp(1.8rem, 4vw, 2.8rem);
        line-height: 1.3;
        font-weight: 800;
        margin-bottom: 18px;
    }
    .hero-lead {
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.88);
        margin-bottom: 28px;
        max-width: 520px;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border-radius: 14px;
        padding: 13px 24px;
        font-weight: 700;
        font-size: 0.95rem;
        cursor: pointer;
        border: 2px solid transparent;
        transition: transform .2s, box-shadow .2s, background .2s;
    }
    .btn:focus {
        outline: 3px solid rgba(45, 106, 79, 0.35);
        outline-offset: 2px;
    }
    .btn-primary {
        background: var(--tea);
        color: #fff;
        box-shadow: 0 8px 20px rgba(45, 106, 79, 0.25);
    }
    .btn-primary:hover {
        background: var(--tea-dark);
        transform: translateY(-2px);
        box-shadow: 0 12px 28px rgba(45, 106, 79, 0.3);
    }
    .btn-outline {
        background: transparent;
        border-color: #fff;
        color: #fff;
    }
    .btn-outline:hover {
        background: rgba(255, 255, 255, 0.15);
    }
    .btn-light {
        background: #fff;
        color: var(--tea-dark);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }
    .btn-light:hover {
        background: var(--cream);
        transform: translateY(-2px);
    }
    .btn-sm {
        padding: 8px 16px;
        font-size: 0.85rem;
        border-radius: 10px;
    }
    .section {
        padding: 88px 0;
    }
    .band-alt {
        background: var(--cream);
    }
    .band-white {
        background: #fff;
    }
    .section-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.82rem;
        font-weight: 700;
        color: var(--tea);
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-bottom: 10px;
    }
    .section-title {
        font-size: clamp(1.7rem, 3vw, 2.3rem);
        font-weight: 800;
        line-height: 1.35;
        margin-bottom: 14px;
        color: var(--ink);
    }
    .section-lead {
        max-width: 680px;
        color: var(--muted);
        margin-bottom: 48px;
        font-size: 1rem;
    }
    .entry-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 32px 26px;
        transition: transform .25s, box-shadow .25s, border-color .25s;
        position: relative;
        overflow: hidden;
    }
    .entry-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow);
        border-color: var(--tea-light);
    }
    .entry-card .card-icon {
        width: 54px;
        height: 54px;
        border-radius: 16px;
        background: rgba(45, 106, 79, 0.1);
        color: var(--tea);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        margin-bottom: 20px;
    }
    .entry-card h3 {
        font-size: 1.25rem;
        font-weight: 800;
        margin-bottom: 10px;
    }
    .entry-card p {
        color: var(--muted);
        font-size: 0.9rem;
        margin-bottom: 16px;
    }
    .entry-card a {
        font-weight: 700;
        font-size: 0.88rem;
        color: var(--tea);
    }
    .entry-card a:hover {
        color: var(--tea-dark);
    }
    .timeline-wrap {
        position: relative;
        max-width: 820px;
        margin: 0 auto;
        padding-left: 36px;
    }
    .timeline-wrap::before {
        content: '';
        position: absolute;
        left: 10px;
        top: 0;
        bottom: 0;
        width: 3px;
        background: linear-gradient(180deg, var(--tea), var(--clay));
        border-radius: 3px;
    }
    .timeline-item {
        position: relative;
        padding-bottom: 48px;
    }
    .timeline-item:last-child {
        padding-bottom: 0;
    }
    .timeline-item::before {
        content: '';
        position: absolute;
        left: -31px;
        top: 6px;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        background: var(--tea);
        border: 4px solid #fff;
        box-shadow: 0 0 0 3px var(--clay);
    }
    .timeline-year {
        display: inline-block;
        background: var(--tea);
        color: #fff;
        padding: 4px 14px;
        border-radius: 999px;
        font-size: 0.85rem;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .timeline-item h3 {
        font-size: 1.15rem;
        font-weight: 800;
        margin-bottom: 8px;
    }
    .timeline-item p {
        color: var(--muted);
        font-size: 0.92rem;
        max-width: 640px;
    }
    .news-wrap {
        display: grid;
        grid-template-columns: 1.6fr 1fr;
        gap: 48px;
    }
    .article-list {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .article-list li {
        border-bottom: 1px solid var(--border);
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        gap: 20px;
        transition: padding-left .2s;
    }
    .article-list li:hover {
        padding-left: 8px;
    }
    .article-list li:first-child {
        padding-top: 0;
    }
    .article-list .article-main {
        flex: 1;
    }
    .article-list .article-title {
        font-weight: 800;
        font-size: 1rem;
        margin-bottom: 6px;
        display: inline-block;
    }
    .article-list .article-title:hover {
        color: var(--tea);
    }
    .article-list .article-desc {
        color: var(--muted);
        font-size: 0.88rem;
    }
    .article-list .article-date {
        flex-shrink: 0;
        color: var(--muted);
        font-size: 0.8rem;
        padding-top: 4px;
    }
    .right-rail {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 28px;
    }
    .rail-title {
        font-weight: 800;
        font-size: 1.1rem;
        margin-bottom: 16px;
        padding-bottom: 10px;
        border-bottom: 2px solid var(--tea);
        display: inline-block;
    }
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 28px;
    }
    .tag {
        background: var(--cream);
        color: var(--ink);
        border: 1px solid var(--border);
        padding: 6px 14px;
        border-radius: 999px;
        font-size: 0.82rem;
        font-weight: 600;
        transition: background .2s, color .2s;
    }
    .tag:hover {
        background: var(--tea);
        color: #fff;
        border-color: var(--tea);
    }
    .rail-card {
        background: linear-gradient(135deg, var(--tea-dark), var(--tea));
        border-radius: var(--radius-sm);
        color: #fff;
        padding: 24px;
    }
    .rail-card strong {
        display: block;
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    .rail-card p {
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.82);
        margin-bottom: 18px;
    }
    .guarantee-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }
    .guarantee-item {
        text-align: center;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 30px 20px;
        transition: box-shadow .2s;
    }
    .guarantee-item:hover {
        box-shadow: var(--shadow);
    }
    .guarantee-item i {
        font-size: 1.8rem;
        color: var(--tea);
        margin-bottom: 14px;
    }
    .guarantee-item h3 {
        font-weight: 800;
        font-size: 1rem;
        margin-bottom: 8px;
    }
    .guarantee-item p {
        color: var(--muted);
        font-size: 0.84rem;
    }
    .visit-band {
        position: relative;
        background-image: linear-gradient(135deg, rgba(27, 67, 50, 0.92), rgba(64, 145, 108, 0.85)), url('/assets/images/backpic/back-2.jpg');
        background-size: cover;
        background-position: center;
        color: #fff;
    }
    .visit-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
    }
    .steps-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .steps-list li {
        display: flex;
        gap: 18px;
        margin-bottom: 24px;
    }
    .step-num {
        width: 44px;
        height: 44px;
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.18);
        border: 1px solid rgba(255, 255, 255, 0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 1rem;
        flex-shrink: 0;
    }
    .steps-list strong {
        display: block;
        font-size: 1rem;
        margin-bottom: 4px;
    }
    .steps-list p {
        margin: 0;
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.8);
    }
    .visit-side img {
        border-radius: var(--radius);
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    }
    .quote-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .quote-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 28px;
        position: relative;
        transition: transform .2s, box-shadow .2s;
    }
    .quote-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow);
    }
    .quote-card .stars {
        color: #d97706;
        font-size: 0.9rem;
        margin-bottom: 14px;
    }
    .quote-card .quote-text {
        font-size: 0.92rem;
        color: var(--ink);
        margin-bottom: 18px;
    }
    .quote-card .quote-source {
        color: var(--muted);
        font-size: 0.85rem;
        border-top: 1px solid var(--border);
        padding-top: 14px;
    }
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        margin-bottom: 14px;
        overflow: hidden;
    }
    .faq-item summary {
        list-style: none;
        cursor: pointer;
        padding: 20px 24px;
        font-weight: 700;
        font-size: 0.98rem;
        background: #fff;
        color: var(--ink);
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-item summary::after {
        content: '\f078';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        font-size: 0.8rem;
        color: var(--clay);
        transition: transform .2s;
    }
    .faq-item[open] summary::after {
        transform: rotate(180deg);
    }
    .faq-item .answer {
        padding: 0 24px 22px;
        color: var(--muted);
        font-size: 0.92rem;
        border-top: 1px solid var(--border);
        padding-top: 16px;
        margin-top: 0;
        background: #fff;
    }
    .cta-band {
        background: linear-gradient(135deg, var(--tea-dark), #143c2b);
        color: #fff;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-band::before {
        content: '';
        position: absolute;
        width: 400px;
        height: 400px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
        top: -180px;
        right: -120px;
    }
    .cta-band .cta-title {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        font-weight: 800;
        margin-bottom: 16px;
    }
    .cta-band .cta-text {
        color: rgba(255, 255, 255, 0.8);
        max-width: 500px;
        margin: 0 auto 28px;
    }
    .contact-grid {
        display: grid;
        grid-template-columns: 1fr 1.2fr;
        gap: 48px;
    }
    .contact-info-card {
        background: var(--cream);
        border-radius: var(--radius);
        padding: 36px 28px;
    }
    .contact-info-card h3 {
        font-size: 1.3rem;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .contact-info-card p {
        color: var(--muted);
        font-size: 0.92rem;
        margin-bottom: 24px;
    }
    .info-line {
        display: flex;
        gap: 14px;
        align-items: flex-start;
        margin-bottom: 16px;
    }
    .info-line i {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        background: #fff;
        color: var(--tea);
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border);
    }
    .info-line strong {
        display: block;
        font-size: 0.92rem;
    }
    .info-line span {
        font-size: 0.88rem;
        color: var(--muted);
    }
    .form-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 32px;
        box-shadow: var(--shadow);
    }
    .form-group {
        margin-bottom: 20px;
    }
    .form-group label {
        font-size: 0.88rem;
        font-weight: 700;
        display: block;
        margin-bottom: 8px;
        color: var(--ink);
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
        width: 100%;
        padding: 12px 14px;
        border: 1px solid var(--border);
        border-radius: 12px;
        background: var(--paper);
        font-size: 0.92rem;
        transition: border-color .2s, box-shadow .2s;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: var(--tea);
        box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.12);
    }
    .form-group textarea {
        resize: vertical;
        min-height: 90px;
    }
    .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .site-footer {
        background: #1c1917;
        color: #d6d3d1;
        padding: 56px 0 32px;
    }
    .footer-inner {
        display: flex;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
        padding-bottom: 28px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand {
        max-width: 300px;
    }
    .footer-brand .logo {
        color: #fff;
        margin-bottom: 10px;
    }
    .footer-brand p {
        font-size: 0.88rem;
        color: #a8a29e;
        margin: 0;
    }
    .footer-bottom {
        text-align: center;
        padding-top: 24px;
        font-size: 0.82rem;
        color: #78716c;
    }
    @media (max-width: 1024px) {
        .hero-grid {
            grid-template-columns: 1fr 1fr;
            padding: 60px 0 100px;
        }
        .hero-stage {
            order: 3;
            grid-column: 1 / -1;
        }
        .guarantee-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .news-wrap,
        .visit-grid,
        .contact-grid {
            grid-template-columns: 1fr;
        }
        .quote-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 768px) {
        .section {
            padding: 64px 0;
        }
        .site-header .inner {
            height: 64px;
        }
        .nav-links {
            display: none;
        }
        .menu-toggle {
            display: inline-flex;
        }
        .mobile-nav.open {
            display: block;
        }
        .hero-grid {
            grid-template-columns: 1fr;
            padding: 48px 0 80px;
            gap: 24px;
        }
        .hero-stage {
            order: initial;
            grid-column: auto;
        }
        .hero-stage img {
            height: 220px;
        }
        .hero-slant {
            height: 40px;
        }
        .quote-grid {
            grid-template-columns: 1fr;
        }
        .guarantee-grid {
            grid-template-columns: 1fr;
        }
        .form-row {
            grid-template-columns: 1fr;
        }
        .timeline-wrap {
            padding-left: 28px;
        }
        .timeline-item::before {
            left: -23px;
        }
    }
    @media (max-width: 520px) {
        .container-x {
            padding: 0 18px;
        }
        .btn {
            width: 100%;
            margin-bottom: 10px;
        }
        .hero-badge {
            font-size: 0.75rem;
        }
        .footer-inner {
            flex-direction: column;
        }
    }