/* roulang page: index */
:root {
        --color-bg: #f7f2ea;
        --color-surface: #fffdf8;
        --color-accent: #b0522a;
        --color-accent-dark: #8a3d1e;
        --color-secondary: #4a6b52;
        --color-secondary-dark: #35493a;
        --color-dark: #2c2420;
        --color-text: #2b2118;
        --color-muted: #7a6e5e;
        --color-border: #d4c5b0;
        --color-light-line: #e8dfd0;
        --radius-md: 14px;
        --radius-lg: 24px;
        --radius-sm: 8px;
        --shadow-sm: 0 2px 8px rgba(44, 36, 32, .08);
        --shadow-md: 0 6px 20px rgba(44, 36, 32, .12);
        --shadow-lg: 0 16px 40px rgba(44, 36, 32, .18);
        --space-section: 110px;
        --font-serif: "Georgia", "Songti SC", "SimSun", serif;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    body {
        margin: 0;
        font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        background: var(--color-bg);
        color: var(--color-text);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color .2s ease;
    }
    a:hover {
        color: var(--color-accent);
    }
    button,
    input {
        font-family: inherit;
    }
    .container {
        max-width: 1240px;
        padding-left: 20px;
        padding-right: 20px;
    }
    .section {
        padding: var(--space-section) 0;
    }
    .section-head {
        text-align: center;
        max-width: 720px;
        margin: 0 auto 56px;
    }
    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 3px;
        text-transform: uppercase;
        color: var(--color-accent);
        background: rgba(176, 82, 42, .1);
        padding: 6px 16px;
        border-radius: 30px;
        margin-bottom: 16px;
        border: 1px solid rgba(176, 82, 42, .2);
    }
    .section-title {
        font-size: 40px;
        font-weight: 700;
        line-height: 1.25;
        margin: 0 0 12px;
        letter-spacing: -0.5px;
    }
    .section-desc {
        font-size: 16px;
        color: var(--color-muted);
        margin: 0;
    }
    .site-header {
        padding: 18px 0;
        background: rgba(247, 242, 234, .96);
        border-bottom: 3px double var(--color-border);
        position: sticky;
        top: 0;
        z-index: 100;
        backdrop-filter: blur(10px);
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .logo {
        font-family: var(--font-serif);
        font-size: 22px;
        font-weight: 700;
        color: var(--color-dark);
        letter-spacing: .5px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .logo i {
        color: var(--color-accent);
        font-size: 24px;
    }
    .logo:hover {
        color: var(--color-accent);
    }
    .site-nav {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .site-nav a {
        padding: 8px 18px;
        border-radius: 30px;
        font-size: 15px;
        font-weight: 500;
        color: var(--color-text);
        border: 1px solid transparent;
        transition: all .25s ease;
    }
    .site-nav a:hover {
        color: var(--color-accent);
        background: rgba(176, 82, 42, .06);
        border-color: rgba(176, 82, 42, .2);
    }
    .site-nav a.active {
        color: #fff;
        background: var(--color-accent);
        border-color: var(--color-accent-dark);
        box-shadow: 0 3px 12px rgba(176, 82, 42, .3);
    }
    .nav-toggle {
        display: none;
        background: none;
        border: 2px solid var(--color-border);
        border-radius: var(--radius-sm);
        width: 44px;
        height: 40px;
        cursor: pointer;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        transition: all .3s;
    }
    .nav-toggle span {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--color-text);
        border-radius: 2px;
        transition: all .3s;
    }
    .nav-toggle:hover {
        border-color: var(--color-accent);
    }
    .hero {
        position: relative;
        background: url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
        padding: 170px 0 170px;
        color: #fff;
        text-align: center;
        border-bottom: 4px solid var(--color-accent);
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(140deg, rgba(44, 36, 32, .85), rgba(44, 36, 32, .55), rgba(176, 82, 42, .3));
    }
    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 850px;
        margin: 0 auto;
    }
    .hero-badge {
        display: inline-block;
        background: rgba(255, 255, 255, .14);
        border: 1px solid rgba(255, 255, 255, .3);
        backdrop-filter: blur(4px);
        padding: 7px 20px;
        border-radius: 40px;
        font-size: 13px;
        letter-spacing: 2px;
        margin-bottom: 26px;
        text-transform: uppercase;
    }
    .hero-title {
        font-family: var(--font-serif);
        font-size: 54px;
        font-weight: 800;
        line-height: 1.2;
        margin: 0 0 20px;
        text-shadow: 0 4px 24px rgba(0, 0, 0, .4);
    }
    .hero-subtitle {
        font-size: 18px;
        line-height: 1.7;
        max-width: 640px;
        margin: 0 auto 36px;
        color: rgba(255, 255, 255, .88);
    }
    .hero-buttons {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .btn-retro {
        display: inline-block;
        background: var(--color-accent);
        color: #fff;
        border: 2px solid var(--color-accent-dark);
        padding: 14px 34px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        font-size: 15px;
        box-shadow: 3px 3px 0 var(--color-accent-dark);
        transition: all .2s ease;
        cursor: pointer;
    }
    .btn-retro:hover {
        transform: translate(2px, 2px);
        box-shadow: 1px 1px 0 var(--color-accent-dark);
        color: #fff;
        background: var(--color-accent-dark);
    }
    .btn-outline-light {
        display: inline-block;
        background: transparent;
        color: #fff;
        border: 2px solid rgba(255, 255, 255, .6);
        padding: 14px 34px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        font-size: 15px;
        transition: all .2s ease;
        cursor: pointer;
    }
    .btn-outline-light:hover {
        background: rgba(255, 255, 255, .14);
        color: #fff;
        border-color: #fff;
    }
    .about-section {
        background: var(--color-surface);
    }
    .about-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }
    .about-media {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 3px double var(--color-border);
        box-shadow: var(--shadow-md);
    }
    .about-media img {
        width: 100%;
        height: 380px;
        object-fit: cover;
    }
    .about-media::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(transparent 60%, rgba(44, 36, 32, .3));
        pointer-events: none;
    }
    .about-content h2 {
        font-size: 34px;
        font-weight: 700;
        margin: 0 0 18px;
        line-height: 1.3;
        font-family: var(--font-serif);
    }
    .about-content p {
        color: var(--color-muted);
        margin-bottom: 16px;
        font-size: 15px;
        line-height: 1.85;
    }
    .about-list {
        list-style: none;
        padding: 0;
        margin: 24px 0 0;
        display: grid;
        gap: 14px;
    }
    .about-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 15px;
        line-height: 1.6;
        color: var(--color-text);
    }
    .about-list i {
        color: var(--color-secondary);
        font-size: 18px;
        margin-top: 2px;
        min-width: 20px;
        text-align: center;
    }
    .categories-section {
        background: var(--color-bg);
    }
    .categories-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
    .category-card {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 3px double var(--color-border);
        background: var(--color-surface);
        box-shadow: var(--shadow-sm);
        transition: all .3s ease;
        display: block;
    }
    .category-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        color: inherit;
    }
    .category-card img {
        width: 100%;
        height: 260px;
        object-fit: cover;
        transition: transform .5s ease;
    }
    .category-card:hover img {
        transform: scale(1.03);
    }
    .category-body {
        padding: 28px 30px 32px;
    }
    .category-body h3 {
        font-size: 22px;
        font-weight: 700;
        margin: 0 0 10px;
        font-family: var(--font-serif);
    }
    .category-body p {
        color: var(--color-muted);
        font-size: 14px;
        line-height: 1.7;
        margin: 0 0 18px;
    }
    .category-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--color-accent);
        font-weight: 600;
        font-size: 14px;
    }
    .category-link i {
        transition: transform .2s ease;
    }
    .category-card:hover .category-link i {
        transform: translateX(4px);
    }
    .news-section {
        background: var(--color-surface);
    }
    .news-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .news-card {
        background: var(--color-surface);
        border: 2px solid var(--color-light-line);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all .3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .news-card:hover {
        border-color: var(--color-border);
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }
    .news-cover {
        height: 180px;
        overflow: hidden;
    }
    .news-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }
    .news-card:hover .news-cover img {
        transform: scale(1.04);
    }
    .news-body {
        padding: 22px 24px 24px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .news-badge {
        display: inline-block;
        background: rgba(176, 82, 42, .1);
        color: var(--color-accent);
        font-size: 12px;
        font-weight: 600;
        padding: 3px 12px;
        border-radius: 20px;
        margin-bottom: 12px;
        align-self: flex-start;
        border: 1px solid rgba(176, 82, 42, .15);
    }
    .news-body h3 {
        font-size: 17px;
        font-weight: 600;
        line-height: 1.4;
        margin: 0 0 10px;
        font-family: var(--font-serif);
    }
    .news-body h3 a {
        color: var(--color-text);
    }
    .news-body h3 a:hover {
        color: var(--color-accent);
    }
    .news-body p {
        color: var(--color-muted);
        font-size: 14px;
        line-height: 1.65;
        margin: 0 0 16px;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .news-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: var(--color-muted);
        border-top: 1px solid var(--color-light-line);
        padding-top: 14px;
    }
    .process-section {
        position: relative;
        background: url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
        padding: 110px 0;
        color: #fff;
        border-top: 4px solid var(--color-secondary);
    }
    .process-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(44, 36, 32, .86);
    }
    .process-section .container {
        position: relative;
        z-index: 2;
    }
    .process-section .section-tag {
        color: #e8b494;
        background: rgba(255, 255, 255, .1);
        border-color: rgba(255, 255, 255, .2);
    }
    .process-section .section-title {
        color: #fff;
    }
    .process-section .section-desc {
        color: rgba(255, 255, 255, .75);
    }
    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        margin-top: 20px;
    }
    .process-step {
        text-align: center;
        padding: 32px 20px;
        background: rgba(255, 255, 255, .08);
        border: 1px solid rgba(255, 255, 255, .15);
        border-radius: var(--radius-md);
        backdrop-filter: blur(4px);
        transition: all .3s ease;
    }
    .process-step:hover {
        background: rgba(255, 255, 255, .14);
        transform: translateY(-4px);
    }
    .process-num {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: var(--color-accent);
        border: 2px solid #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-serif);
        font-size: 22px;
        font-weight: 700;
        margin: 0 auto 18px;
        box-shadow: 0 4px 14px rgba(176, 82, 42, .4);
    }
    .process-step h3 {
        font-size: 18px;
        font-weight: 600;
        margin: 0 0 10px;
        font-family: var(--font-serif);
    }
    .process-step p {
        font-size: 14px;
        color: rgba(255, 255, 255, .7);
        margin: 0;
        line-height: 1.7;
    }
    .stats-section {
        background: var(--color-bg);
        padding: 80px 0;
        border-bottom: 3px double var(--color-border);
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 36px;
    }
    .stats-card {
        text-align: center;
        padding: 36px 20px;
        background: var(--color-surface);
        border: 3px double var(--color-border);
        border-radius: var(--radius-md);
        transition: all .3s ease;
    }
    .stats-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .stats-number {
        font-family: var(--font-serif);
        font-size: 40px;
        font-weight: 800;
        color: var(--color-accent);
        line-height: 1.2;
        display: block;
        margin-bottom: 8px;
    }
    .stats-label {
        font-size: 14px;
        color: var(--color-muted);
        display: block;
        letter-spacing: 1px;
    }
    .faq-section {
        background: var(--color-surface);
    }
    .faq-list {
        max-width: 780px;
        margin: 0 auto;
        display: grid;
        gap: 16px;
    }
    .faq-item {
        border: 2px solid var(--color-light-line);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        overflow: hidden;
        transition: all .3s ease;
    }
    .faq-item:hover {
        border-color: var(--color-border);
        box-shadow: var(--shadow-sm);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 26px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        color: var(--color-text);
        background: none;
        border: none;
        width: 100%;
        text-align: left;
    }
    .faq-question i {
        color: var(--color-accent);
        font-size: 18px;
        transition: transform .3s ease;
    }
    .faq-item.active .faq-question i {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease;
    }
    .faq-answer p {
        padding: 0 26px 22px;
        margin: 0;
        color: var(--color-muted);
        font-size: 14px;
        line-height: 1.85;
    }
    .cta-section {
        background: var(--color-dark);
        padding: 90px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        opacity: .2;
    }
    .cta-box {
        position: relative;
        z-index: 2;
        max-width: 640px;
        margin: 0 auto;
        padding: 50px 50px 54px;
        background: rgba(255, 255, 255, .06);
        border: 3px double rgba(255, 255, 255, .3);
        border-radius: var(--radius-lg);
        backdrop-filter: blur(6px);
    }
    .cta-box h2 {
        color: #fff;
        font-size: 32px;
        font-family: var(--font-serif);
        margin: 0 0 14px;
    }
    .cta-box p {
        color: rgba(255, 255, 255, .8);
        font-size: 15px;
        margin: 0 0 30px;
        line-height: 1.8;
    }
    .cta-buttons {
        display: flex;
        gap: 14px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .site-footer {
        background: #221c19;
        color: rgba(255, 255, 255, .6);
        padding: 70px 0 30px;
        border-top: 4px solid var(--color-accent);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 50px;
        margin-bottom: 40px;
    }
    .footer-brand .logo {
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-brand .logo i {
        color: #e8b494;
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        max-width: 320px;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 600;
        color: #fff;
        margin: 0 0 18px;
        font-family: var(--font-serif);
    }
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
        display: grid;
        gap: 10px;
    }
    .footer-links a {
        color: rgba(255, 255, 255, .6);
        font-size: 14px;
        transition: all .2s;
    }
    .footer-links a:hover {
        color: #e8b494;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .1);
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
    }
    @media (max-width: 991px) {
        .about-grid {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .news-grid {
            grid-template-columns: 1fr 1fr;
        }
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 767px) {
        .site-header {
            position: sticky;
            top: 0;
        }
        .nav-toggle {
            display: flex;
        }
        .site-nav {
            position: fixed;
            top: 74px;
            right: 0;
            width: 250px;
            background: var(--color-surface);
            border-left: 3px double var(--color-border);
            border-bottom: 3px double var(--color-border);
            flex-direction: column;
            padding: 20px;
            gap: 8px;
            transform: translateX(100%);
            transition: transform .35s ease;
            box-shadow: var(--shadow-lg);
            border-radius: 0 0 0 var(--radius-md);
            z-index: 99;
        }
        .site-nav.open {
            transform: translateX(0);
        }
        .site-nav a {
            width: 100%;
            text-align: center;
        }
        .hero {
            padding: 120px 0 110px;
        }
        .hero-title {
            font-size: 36px;
        }
        .hero-subtitle {
            font-size: 16px;
        }
        .hero-buttons {
            flex-direction: column;
            align-items: center;
        }
        .btn-retro,
        .btn-outline-light {
            width: 100%;
            text-align: center;
            max-width: 280px;
        }
        .section {
            padding: 70px 0;
        }
        .section-title {
            font-size: 28px;
        }
        .categories-grid {
            grid-template-columns: 1fr;
        }
        .news-grid {
            grid-template-columns: 1fr;
        }
        .process-grid {
            grid-template-columns: 1fr;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stats-number {
            font-size: 32px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .cta-box {
            padding: 36px 24px;
        }
        .cta-box h2 {
            font-size: 26px;
        }
    }
    @media (max-width: 520px) {
        .site-nav {
            width: 220px;
            top: 68px;
        }
        .hero-title {
            font-size: 30px;
        }
        .hero-subtitle {
            font-size: 15px;
        }
        .news-cover {
            height: 160px;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .category-body {
            padding: 22px 20px;
        }
        .process-step {
            padding: 26px 16px;
        }
        .faq-question {
            padding: 16px 18px;
            font-size: 15px;
        }
        .faq-answer p {
            padding: 0 18px 18px;
        }
        .cta-buttons {
            flex-direction: column;
            align-items: center;
        }
    }

/* roulang page: category1 */
:root {
            --primary: #2c4a3e;
            --primary-dark: #1f352c;
            --primary-light: #3d6354;
            --secondary: #a97d52;
            --secondary-light: #c9a17a;
            --accent: #c45b3a;
            --bg: #f6f1e7;
            --bg-alt: #efe6d6;
            --dark: #1a2e29;
            --text: #2b2b26;
            --text-weak: #7d786a;
            --border: #ddd1bf;
            --border-dark: #b3a38c;
            --white: #fdfaf4;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 30px rgba(26, 46, 41, 0.08);
            --shadow-hover: 0 18px 44px rgba(26, 46, 41, 0.14);
            --shadow-btn: 0 4px 0 var(--primary-dark);
            --transition: all 0.3s ease;
            --font-heading: "Noto Serif SC", "Songti SC", "SimSun", "Georgia", serif;
            --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "STHeiti", sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            background-image: radial-gradient(rgba(44,74,62,.05) 1px, transparent 1px);
            background-size: 26px 26px;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        button { font-family: inherit; }
        .container { max-width: 1200px; }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--dark);
            border-bottom: 3px solid var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 2px 18px rgba(0,0,0,.25);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .logo {
            font-family: var(--font-heading);
            font-size: 1.32rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .logo i {
            color: var(--secondary-light);
            font-size: 1.55rem;
            transition: transform .3s ease;
        }
        .logo:hover { color: #fff; }
        .logo:hover i { transform: rotate(-6deg) scale(1.08); }
        .site-nav {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .site-nav a {
            display: inline-flex;
            padding: 8px 20px;
            color: rgba(255,255,255,.72);
            border-radius: 999px;
            font-weight: 500;
            font-size: .95rem;
            position: relative;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .site-nav a:hover {
            color: #fff;
            background: rgba(255,255,255,.08);
            border-color: rgba(255,255,255,.12);
        }
        .site-nav a.active {
            color: var(--dark);
            background: var(--secondary-light);
            font-weight: 700;
            box-shadow: 0 2px 10px rgba(0,0,0,.18);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: 2px solid rgba(255,255,255,.25);
            border-radius: 8px;
            width: 42px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .25s;
        }
        .nav-toggle:hover { border-color: var(--secondary-light); }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all .3s;
        }
        .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        @media (max-width: 991.98px) {
            .nav-toggle { display: flex; }
            .site-nav {
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                padding: 18px 24px 24px;
                gap: 10px;
                border-top: 1px solid rgba(255,255,255,.1);
                border-bottom: 3px solid var(--secondary);
                box-shadow: 0 16px 30px rgba(0,0,0,.35);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: all .3s ease;
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .site-nav a {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 1rem;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background-image: linear-gradient(135deg, rgba(26,46,41,.88) 0%, rgba(44,74,62,.78) 55%, rgba(169,125,82,.55) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            border-bottom: 4px solid var(--secondary);
        }
        .page-banner::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 8px;
            background: repeating-linear-gradient(45deg, var(--secondary), var(--secondary) 8px, var(--secondary-light) 8px, var(--secondary-light) 16px);
            opacity: .5;
        }
        .breadcrumb-nav {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 22px;
            border: 1px solid rgba(255,255,255,.35);
            border-radius: 999px;
            background: rgba(0,0,0,.2);
            backdrop-filter: blur(6px);
            font-size: .9rem;
            margin-bottom: 32px;
            color: rgba(255,255,255,.85);
        }
        .breadcrumb-nav a { color: var(--secondary-light); }
        .breadcrumb-nav a:hover { color: #fff; }
        .breadcrumb-nav span { opacity: .7; }
        .page-banner h1 {
            font-family: var(--font-heading);
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            letter-spacing: 3px;
            margin-bottom: 18px;
            text-shadow: 0 4px 20px rgba(0,0,0,.35);
        }
        .page-banner .banner-sub {
            font-size: 1.12rem;
            color: rgba(255,255,255,.82);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .page-banner .banner-sub i { color: var(--secondary-light); }

        /* ===== Section common ===== */
        .section { padding: 96px 0; position: relative; }
        .section-alt { background: var(--bg-alt); }
        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 60px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 7px 22px;
            background: var(--white);
            border: 1px solid var(--border-dark);
            border-radius: 999px;
            font-size: .82rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            position: relative;
        }
        .section-tag::before {
            content: "✦";
            color: var(--secondary);
            font-size: .85rem;
        }
        .section-head h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--dark);
            margin: 22px 0 14px;
            letter-spacing: 1px;
            position: relative;
            display: inline-block;
        }
        .section-head h2::after {
            content: "";
            display: block;
            width: 60%;
            height: 3px;
            margin: 14px auto 0;
            background: linear-gradient(90deg, transparent, var(--secondary), transparent);
            border-radius: 2px;
        }
        .section-head p {
            color: var(--text-weak);
            font-size: 1.06rem;
            line-height: 1.85;
            margin-top: 8px;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
        }
        .img-frame {
            border: 3px solid var(--border-dark);
            border-radius: var(--radius);
            box-shadow: 10px 10px 0 var(--border);
            transition: all .35s ease;
            width: 100%;
            object-fit: cover;
        }
        .img-frame:hover {
            transform: translate(-3px, -3px);
            box-shadow: 14px 14px 0 var(--border);
        }
        .intro-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .intro-item {
            display: flex;
            gap: 18px;
            padding: 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-left: 4px solid var(--secondary);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            transition: all .3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,.03);
        }
        .intro-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(6px);
            border-left-color: var(--accent);
        }
        .intro-index {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--border-dark);
            line-height: 1;
            min-width: 44px;
            border-right: 2px dotted var(--border-dark);
            padding-right: 16px;
        }
        .intro-item h3 {
            font-family: var(--font-heading);
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--dark);
        }
        .intro-item p {
            font-size: .95rem;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== Entry Types ===== */
        .entry-card {
            background: var(--white);
            border: 2px solid var(--border-dark);
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            position: relative;
            height: 100%;
            transition: all .35s ease;
            box-shadow: 4px 4px 0 var(--border);
        }
        .entry-card::before {
            content: "";
            position: absolute;
            top: 10px;
            left: 10px;
            right: 10px;
            border-top: 2px dashed rgba(169,125,82,.4);
        }
        .entry-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(44,74,62,.16), 4px 4px 0 var(--border);
            border-color: var(--secondary);
        }
        .entry-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 50%;
            color: #fff;
            font-size: 1.7rem;
            border: 3px solid var(--secondary-light);
            box-shadow: 0 6px 16px rgba(44,74,62,.25);
            transition: all .3s;
        }
        .entry-card:hover .entry-icon {
            transform: rotate(-8deg) scale(1.08);
        }
        .entry-card h3 {
            font-family: var(--font-heading);
            font-size: 1.22rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .entry-card p {
            color: var(--text-weak);
            font-size: .95rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .text-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .95rem;
            border-bottom: 2px solid transparent;
            padding-bottom: 2px;
        }
        .text-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
            gap: 12px;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: linear-gradient(180deg, var(--bg) 0%, var(--white) 100%);
        }
        .steps-row { counter-reset: step; }
        .step-item {
            text-align: center;
            padding: 34px 22px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            position: relative;
            height: 100%;
            transition: all .3s;
        }
        .step-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow);
            transform: translateY(-6px);
        }
        .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            background: var(--bg-alt);
            border: 2px solid var(--border-dark);
            border-radius: 50%;
            box-shadow: 3px 3px 0 var(--border);
            transition: all .3s;
        }
        .step-item:hover .step-num {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary-dark);
            transform: rotate(6deg);
        }
        .step-connector {
            display: none;
        }
        .step-item h3 {
            font-family: var(--font-heading);
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .step-item p {
            font-size: .92rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin: 0;
        }
        @media (min-width: 992px) {
            .step-item { padding: 40px 26px; }
        }

        /* ===== Entry List ===== */
        .entry-list-section { background: var(--bg-alt); }
        .topic-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all .35s ease;
            box-shadow: 0 2px 10px rgba(0,0,0,.04);
        }
        .topic-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }
        .topic-card .cover-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            border-bottom: 3px solid var(--border);
        }
        .topic-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .topic-card:hover .cover-wrap img {
            transform: scale(1.06);
        }
        .topic-card .cover-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26,46,41,.25) 0%, transparent 50%);
            opacity: 0;
            transition: opacity .3s;
        }
        .topic-card:hover .cover-wrap::after { opacity: 1; }
        .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 5px 16px;
            background: var(--primary);
            color: #fff;
            font-size: .78rem;
            font-weight: 600;
            border-radius: 999px;
            z-index: 2;
            letter-spacing: 1px;
            box-shadow: 0 3px 10px rgba(0,0,0,.2);
            border: 1px solid rgba(255,255,255,.3);
        }
        .topic-card .card-body {
            padding: 24px 24px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .topic-tag {
            padding: 3px 12px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: .78rem;
            color: var(--text-weak);
            transition: all .25s;
        }
        .topic-card:hover .topic-tag {
            border-color: var(--secondary);
            color: var(--primary);
            background: #fff;
        }
        .topic-card h3 {
            font-family: var(--font-heading);
            font-size: 1.14rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .topic-card p {
            font-size: .92rem;
            color: var(--text-weak);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 16px;
        }
        .topic-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: .82rem;
            color: var(--text-weak);
            border-top: 1px dashed var(--border);
            padding-top: 14px;
        }
        .topic-meta i { color: var(--secondary); margin-right: 4px; }
        .topic-meta span { display: inline-flex; align-items: center; }

        /* ===== Notice Section ===== */
        .notice-section {
            background: linear-gradient(120deg, rgba(26,46,41,.94) 0%, rgba(44,74,62,.88) 100%), url('/assets/images/backpic/back-1.png') center/cover;
            background-attachment: fixed;
            color: #fff;
            border-top: 4px solid var(--secondary);
            border-bottom: 4px solid var(--secondary);
        }
        .notice-box { padding: 20px 0; }
        .notice-box .notice-title {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 18px;
        }
        .notice-box .notice-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 64px;
            height: 3px;
            background: var(--secondary-light);
            border-radius: 2px;
        }
        .notice-box .notice-desc {
            color: rgba(255,255,255,.8);
            line-height: 1.85;
            margin-bottom: 0;
            font-size: 1rem;
        }
        .notice-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .notice-item {
            display: flex;
            gap: 14px;
            padding: 18px 20px;
            background: rgba(255,255,255,.09);
            border: 1px solid rgba(255,255,255,.18);
            border-radius: var(--radius-sm);
            backdrop-filter: blur(6px);
            transition: all .3s;
        }
        .notice-item:hover {
            background: rgba(255,255,255,.15);
            border-color: var(--secondary-light);
            transform: translateX(4px);
        }
        .notice-item i {
            color: var(--secondary-light);
            font-size: 1.2rem;
            margin-top: 4px;
            min-width: 22px;
        }
        .notice-item p {
            margin: 0;
            font-size: .9rem;
            line-height: 1.65;
            color: rgba(255,255,255,.92);
        }
        @media (max-width: 767.98px) {
            .notice-list { grid-template-columns: 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg); }
        .accordion {
            --bs-accordion-border-color: var(--border);
            --bs-accordion-bg: var(--white);
            --bs-accordion-border-radius: var(--radius-sm);
            --bs-accordion-inner-border-radius: var(--radius-sm);
            --bs-accordion-btn-focus-box-shadow: 0 0 0 4px rgba(44,74,62,.12);
            --bs-accordion-active-bg: #fbf6ec;
            --bs-accordion-active-color: var(--primary);
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 2px solid var(--border) !important;
            margin-bottom: 16px;
            border-radius: var(--radius-sm) !important;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,.03);
            transition: all .3s;
        }
        .accordion-item:has(.accordion-collapse.show) {
            border-color: var(--secondary) !important;
            box-shadow: var(--shadow);
        }
        .accordion-button {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            padding: 20px 26px;
            background: var(--white);
        }
        .accordion-button:not(.collapsed) {
            background: var(--white);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button::after {
            background-size: 1rem;
            filter: sepia(.3);
        }
        .accordion-button:focus {
            box-shadow: var(--bs-accordion-btn-focus-box-shadow);
        }
        .accordion-body {
            padding: 4px 26px 24px;
            color: var(--text-weak);
            font-size: .95rem;
            line-height: 1.8;
            background: #fff;
        }
        .accordion-body p { margin-bottom: 8px; }
        .accordion-body ul {
            padding-left: 18px;
            margin-bottom: 0;
        }
        .accordion-body li { margin-bottom: 4px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "◆";
            position: absolute;
            font-size: 22rem;
            opacity: .08;
            right: -60px;
            bottom: -80px;
            transform: rotate(15deg);
        }
        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .cta-box h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .cta-box p {
            color: rgba(255,255,255,.9);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: var(--dark);
            color: #fff !important;
            border: 2px solid var(--dark);
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 4px 0 rgba(0,0,0,.2);
            transition: all .25s;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0,0,0,.25), 0 4px 0 rgba(0,0,0,.2);
            background: #111;
        }
        .btn-cta:active {
            transform: translateY(2px);
            box-shadow: 0 1px 0 rgba(0,0,0,.2);
        }
        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255,255,255,.7);
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: all .25s;
        }
        .btn-outline-cta:hover {
            background: rgba(255,255,255,.15);
            border-color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255,255,255,.75);
            border-top: 4px solid var(--secondary);
            padding: 64px 0 0;
        }
        .site-footer .logo { color: #fff; margin-bottom: 16px; }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255,255,255,.1);
        }
        .footer-brand p {
            font-size: .95rem;
            color: rgba(255,255,255,.6);
            max-width: 360px;
            line-height: 1.85;
        }
        .footer-title {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--secondary);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,.65);
            font-size: .92rem;
            transition: all .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a::before { content: "›"; color: var(--secondary); font-weight: 700; }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 24px 0;
            font-size: .86rem;
            color: rgba(255,255,255,.45);
            flex-wrap: wrap;
        }
        @media (max-width: 991.98px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 575.98px) {
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Responsive ===== */
        @media (max-width: 767.98px) {
            .section { padding: 68px 0; }
            .page-banner { padding: 88px 0 76px; }
            .section-head { margin-bottom: 44px; }
            .section-head h2 { font-size: 1.7rem; }
            .intro-item { padding: 18px; flex-direction: column; gap: 10px; }
            .intro-index { border-right: 0; border-bottom: 2px dotted var(--border-dark); padding: 0 0 6px; }
            .steps-row { row-gap: 24px; }
        }
        @media (max-width: 520px) {
            .logo { font-size: 1.05rem; gap: 7px; }
            .logo i { font-size: 1.2rem; }
            .cta-actions { flex-direction: column; }
            .btn-cta, .btn-outline-cta { width: 100%; justify-content: center; }
            .page-banner h1 { font-size: 1.8rem; }
        }

/* roulang page: article */
:root {
    --primary: #a35c2a;
    --primary-dark: #7d421c;
    --primary-light: #d9a05b;
    --secondary: #2d4a3e;
    --secondary-dark: #1f2a26;
    --bg: #f7f2ea;
    --bg-deep: #efe6d8;
    --card-bg: #fffdf7;
    --text: #2b2118;
    --text-light: #4d4135;
    --text-weak: #8a7a66;
    --border: #e0d3bc;
    --border-dark: #b8a88f;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 10px rgba(43, 33, 24, 0.06);
    --shadow: 0 8px 28px rgba(43, 33, 24, 0.09);
    --shadow-lg: 0 16px 40px rgba(43, 33, 24, 0.14);
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-display: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

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

button,
input,
select,
textarea {
    font-family: inherit;
}

.container {
    max-width: 1200px;
}

/* ========== 导航 ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1040;
    background: rgba(247, 242, 234, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 2px solid var(--border);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--primary-dark);
    white-space: nowrap;
}

.logo i {
    color: var(--primary);
    font-size: 1.4rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    border: 1px solid transparent;
    transition: all 0.25s ease;
}

.site-nav a:hover {
    background: var(--bg-deep);
    border-color: var(--border);
    color: var(--primary-dark);
}

.site-nav a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 4px 14px rgba(163, 92, 42, 0.3);
}

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

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========== 页面 Banner ========== */
.page-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 110px 0 90px;
    color: #fff;
    border-bottom: 4px solid var(--primary-light);
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(31, 42, 38, 0.94) 0%, rgba(31, 42, 38, 0.72) 55%, rgba(163, 92, 42, 0.45) 100%);
    backdrop-filter: blur(2px);
}

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

.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 22px;
}

.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.85);
}

.breadcrumb-nav a:hover {
    color: var(--primary-light);
}

.breadcrumb-nav .sep {
    opacity: 0.5;
}

.breadcrumb-nav .current {
    color: var(--primary-light);
    max-width: 280px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(217, 160, 91, 0.22);
    border: 1px solid rgba(217, 160, 91, 0.55);
    color: #f3d5ac;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 16px;
    backdrop-filter: blur(4px);
}

.page-banner h1 {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.3;
    max-width: 800px;
    margin-bottom: 18px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.banner-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.85);
}

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

.banner-meta i {
    color: var(--primary-light);
}

/* ========== 文章主体 ========== */
.article-section {
    padding: 64px 0;
}

.article-main {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 44px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.article-main::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 32px;
    width: 84px;
    height: 4px;
    background: var(--primary);
    border-radius: 0 0 4px 4px;
}

.article-metadata {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px dashed var(--border);
}

.article-metadata .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-weak);
}

.article-metadata .meta-item i {
    color: var(--primary);
}

.article-metadata .tag {
    display: inline-block;
    background: var(--bg-deep);
    color: var(--primary-dark);
    border: 1px solid var(--border);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
}

/* 正文排版 */
.article-content {
    font-size: 1.02rem;
    line-height: 1.95;
    color: var(--text-light);
}

.article-content p {
    margin-bottom: 1.3rem;
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 700;
    margin: 2.2rem 0 1.1rem;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    color: var(--primary-dark);
    line-height: 1.4;
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.8rem 0 0.9rem;
    color: var(--text);
    line-height: 1.4;
}

.article-content h4 {
    font-size: 1.08rem;
    font-weight: 700;
    margin: 1.4rem 0 0.7rem;
    color: var(--text);
}

.article-content ul,
.article-content ol {
    margin: 1.1rem 0 1.4rem;
    padding-left: 1.6rem;
}

.article-content ul li,
.article-content ol li {
    margin-bottom: 0.5rem;
}

.article-content ul li::marker {
    color: var(--primary);
}

.article-content blockquote {
    background: var(--bg-deep);
    border-left: 4px solid var(--primary-light);
    padding: 18px 22px;
    margin: 1.6rem 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--text-weak);
}

.article-content blockquote p {
    margin-bottom: 0;
}

.article-content img {
    border-radius: var(--radius);
    margin: 1.6rem 0;
    box-shadow: var(--shadow);
}

.article-content a {
    color: var(--primary);
    border-bottom: 1px solid rgba(163, 92, 42, 0.35);
}

.article-content a:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6rem 0;
    font-size: 0.95rem;
}

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

.article-content table th {
    background: var(--bg-deep);
    font-weight: 700;
    color: var(--primary-dark);
}

.article-content code {
    background: var(--bg-deep);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: "SFMono-Regular", Consolas, monospace;
}

/* 文章底部提示 */
.article-footer-note {
    margin-top: 40px;
    padding: 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.article-footer-note p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-weak);
    flex: 1;
    min-width: 240px;
}

.article-footer-note .btn-group-note {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* 空内容 / 未找到 */
.not-found-box,
.empty-content {
    text-align: center;
    padding: 60px 30px;
}

.not-found-box i {
    font-size: 3rem;
    color: var(--border-dark);
    margin-bottom: 18px;
}

.not-found-box h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 12px;
    color: var(--text);
}

.not-found-box p {
    color: var(--text-weak);
    max-width: 400px;
    margin: 0 auto 24px;
}

.empty-content p {
    color: var(--text-weak);
    text-align: center;
    padding: 30px;
}

/* ========== 按钮 ========== */
.btn-torch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--primary-dark);
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
    cursor: pointer;
}

.btn-torch:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(163, 92, 42, 0.3);
    color: #fff;
}

.btn-torch:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(163, 92, 42, 0.25);
}

.btn-ghost-torch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    color: var(--primary-dark);
    border: 2px solid var(--primary);
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
    cursor: pointer;
}

.btn-ghost-torch:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(163, 92, 42, 0.22);
}

.btn-light-torch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
    backdrop-filter: blur(6px);
    cursor: pointer;
}

.btn-light-torch:hover {
    background: rgba(255, 255, 255, 0.24);
    border-color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ========== 侧边栏 ========== */
.sidebar-widget {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.sidebar-widget::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20px;
    width: 50px;
    height: 3px;
    background: var(--primary-light);
    border-radius: 0 0 3px 3px;
}

.sidebar-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    padding-bottom: 12px;
    margin-bottom: 18px;
    border-bottom: 2px dashed var(--border);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-title i {
    color: var(--primary);
    font-size: 1rem;
}

.steps-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.steps-list li {
    display: flex;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
    line-height: 1.6;
}

.steps-list li:last-child {
    border-bottom: none;
}

.step-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.tips-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tips-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 8px 0;
    font-size: 0.93rem;
    color: var(--text-light);
    line-height: 1.6;
}

.tips-list li i {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
}

.category-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-links li {
    margin-bottom: 10px;
}

.category-links li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    transition: all 0.25s ease;
}

.category-links li a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(163, 92, 42, 0.25);
}

.category-links li a i {
    color: var(--primary);
    transition: color 0.2s;
}

.category-links li a:hover i {
    color: #fff;
}

.category-links li a small {
    margin-left: auto;
    color: var(--text-weak);
    font-size: 0.8rem;
    transition: color 0.2s;
}

.category-links li a:hover small {
    color: rgba(255, 255, 255, 0.8);
}

/* ========== 探索区域 ========== */
.explore-section {
    padding: 72px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-heading {
    margin-bottom: 40px;
}

.section-heading .sub-title {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.section-heading h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.section-heading p {
    color: var(--text-weak);
    max-width: 620px;
    font-size: 1rem;
}

.related-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.related-card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

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

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

.related-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(31, 42, 38, 0.4), transparent 60%);
}

.related-card-tag {
    position: absolute;
    z-index: 2;
    top: 16px;
    left: 16px;
    background: rgba(31, 42, 38, 0.8);
    color: #fff;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

.related-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    border-top: 2px solid var(--border);
}

.related-card-body h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
}

.related-card-body p {
    color: var(--text-weak);
    font-size: 0.93rem;
    line-height: 1.7;
    flex: 1;
}

.related-card-body .related-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.2s ease;
}

.related-card-body .related-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}

/* ========== FAQ ========== */
.faq-section {
    padding: 72px 0;
    background: var(--bg);
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 26px;
    margin-bottom: 14px;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-dark);
}

.faq-item h3 {
    font-size: 1.03rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h3 i {
    color: var(--primary);
    font-size: 0.9rem;
}

.faq-item p {
    color: var(--text-weak);
    font-size: 0.95rem;
    line-height: 1.75;
    margin: 0;
    padding-left: 24px;
}

/* ========== CTA ========== */
.cta-section {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 90px 0;
    color: #fff;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(31, 42, 38, 0.92), rgba(31, 42, 38, 0.72));
}

.cta-section .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-section h2 {
    font-family: var(--font-display);
    font-size: 2.1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto 32px;
    font-size: 1.05rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--secondary-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand .logo {
    color: #f3d5ac;
    margin-bottom: 14px;
}

.footer-brand .logo i {
    color: var(--primary-light);
}

.footer-brand p {
    font-size: 0.92rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.65);
    max-width: 400px;
}

.footer-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--primary-light);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.92rem;
    transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 20px 0 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
}

/* ========== 响应式 ========== */
@media (max-width: 991px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .page-banner {
        padding: 90px 0 70px;
    }

    .page-banner h1 {
        font-size: 2rem;
    }
}

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

    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: var(--bg);
        padding: 16px;
        border-bottom: 2px solid var(--border);
        box-shadow: var(--shadow-lg);
        gap: 8px;
    }

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

    .site-nav a {
        padding: 14px 20px;
        border-radius: var(--radius);
        justify-content: center;
    }

    .site-nav a.active {
        background: var(--primary);
    }

    .page-banner {
        padding: 72px 0 56px;
    }

    .page-banner h1 {
        font-size: 1.7rem;
    }

    .article-section {
        padding: 40px 0;
    }

    .article-main {
        padding: 28px 22px;
        border-radius: var(--radius);
    }

    .sidebar-widget {
        padding: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .cta-section {
        padding: 64px 0;
    }

    .cta-section h2 {
        font-size: 1.7rem;
    }
}

@media (max-width: 520px) {
    .logo {
        font-size: 1.05rem;
        gap: 8px;
    }

    .logo i {
        font-size: 1.1rem;
    }

    .page-banner h1 {
        font-size: 1.45rem;
    }

    .banner-meta {
        gap: 10px;
        font-size: 0.85rem;
    }

    .article-main {
        padding: 22px 16px;
    }

    .article-content {
        font-size: 0.98rem;
    }

    .article-content h2 {
        font-size: 1.3rem;
    }

    .article-content h3 {
        font-size: 1.1rem;
    }

    .article-footer-note {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px;
    }

    .btn-torch,
    .btn-ghost-torch {
        padding: 10px 22px;
        font-size: 0.9rem;
    }

    .section-heading h2 {
        font-size: 1.6rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: category2 */
:root {
            --c-primary: #8a5a2b;
            --c-primary-dark: #5f3d1c;
            --c-accent: #c47a3e;
            --c-ink: #3a342c;
            --c-muted: #8c8173;
            --c-bg: #f4ede1;
            --c-card: #fcf8f1;
            --c-border: #d6c7a9;
            --c-dark: #26221c;
            --c-dark-soft: #322d25;
            --c-cream: #f8f2e7;
            --radius: 8px;
            --radius-sm: 4px;
            --shadow: 0 10px 28px rgba(58, 52, 44, .08);
            --shadow-hover: 0 18px 40px rgba(58, 52, 44, .14);
            --section-pad: 92px;
            --font-serif: "Iowan Old Style", "Palatino Linotype", "Noto Serif SC", "Songti SC", serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--c-ink);
            background-color: var(--c-bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color .22s ease;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--c-dark);
            border-bottom: 3px solid var(--c-accent);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            flex-wrap: wrap;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: var(--c-cream);
            letter-spacing: .5px;
            font-family: var(--font-serif);
            white-space: nowrap;
        }

        .logo i {
            color: var(--c-accent);
            font-size: 22px;
        }

        .logo:hover {
            color: #fff;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .site-nav a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 600;
            color: rgba(244, 237, 225, .82);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: background .22s ease, color .22s ease, border-color .22s ease;
        }

        .site-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .site-nav a.active {
            color: #fff;
            background: var(--c-primary);
            border-color: var(--c-primary-dark);
            box-shadow: 0 2px 0 rgba(0, 0, 0, .2);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            flex-direction: column;
            gap: 5px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--c-cream);
            border-radius: 2px;
            transition: transform .25s ease, opacity .25s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .help-hero {
            background:
                linear-gradient(180deg, rgba(38, 34, 28, .9), rgba(38, 34, 28, .75)),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 116px 0 108px;
            color: var(--c-cream);
            text-align: center;
            border-bottom: 4px solid var(--c-accent);
            position: relative;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(196, 122, 62, .18);
            border: 1px solid rgba(196, 122, 62, .45);
            color: #f0c49a;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 22px;
        }

        .help-hero h1 {
            font-family: var(--font-serif);
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 18px;
            color: #fff;
        }

        .help-hero p.lead-text {
            font-size: 17px;
            line-height: 1.85;
            max-width: 680px;
            margin: 0 auto 34px;
            color: rgba(244, 237, 225, .85);
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-vintage {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            background: var(--c-primary);
            border: 2px solid var(--c-primary-dark);
            border-radius: 0;
            box-shadow: 4px 4px 0 var(--c-primary-dark);
            transition: all .22s ease;
            cursor: pointer;
        }

        .btn-vintage:hover {
            background: var(--c-accent);
            color: #fff;
            box-shadow: 2px 2px 0 var(--c-primary-dark);
            transform: translate(2px, 2px);
        }

        .btn-outline-vintage {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 700;
            color: var(--c-cream);
            background: transparent;
            border: 2px solid rgba(244, 237, 225, .7);
            border-radius: 0;
            box-shadow: 4px 4px 0 rgba(244, 237, 225, .25);
            transition: all .22s ease;
            cursor: pointer;
        }

        .btn-outline-vintage:hover {
            background: rgba(244, 237, 225, .12);
            color: #fff;
            border-color: #fff;
            box-shadow: 2px 2px 0 rgba(244, 237, 225, .35);
            transform: translate(2px, 2px);
        }

        .hero-meta {
            display: flex;
            gap: 22px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 42px;
            padding-top: 28px;
            border-top: 1px solid rgba(244, 237, 225, .14);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(244, 237, 225, .68);
        }

        .hero-meta i {
            color: var(--c-accent);
        }

        /* ===== 板块通用 ===== */
        .help-section {
            padding: var(--section-pad) 0;
            border-bottom: 1px solid var(--c-border);
        }

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

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            background: rgba(138, 90, 43, .1);
            color: var(--c-primary);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 1px;
            padding: 4px 14px;
            border: 1px solid rgba(138, 90, 43, .22);
            border-radius: 100px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-family: var(--font-serif);
            font-size: 34px;
            font-weight: 800;
            color: var(--c-ink);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== 诊断卡片 ===== */
        .diagnose-section {
            background: var(--c-bg);
        }

        .card-vintage {
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-radius: 0;
            padding: 34px 28px 28px;
            position: relative;
            height: 100%;
            box-shadow: 4px 4px 0 rgba(58, 52, 44, .05);
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .card-vintage::before {
            content: "";
            position: absolute;
            inset: 7px;
            border: 1px dashed rgba(138, 90, 43, .25);
            pointer-events: none;
            border-radius: 0;
        }

        .card-vintage:hover {
            transform: translateY(-6px);
            box-shadow: 8px 8px 0 rgba(58, 52, 44, .1);
        }

        .card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--c-primary);
            color: #fff;
            font-size: 21px;
            border: 2px solid var(--c-primary-dark);
            box-shadow: 3px 3px 0 rgba(58, 52, 44, .18);
            margin-bottom: 20px;
        }

        .card-vintage h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--c-ink);
        }

        .card-vintage p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--c-muted);
            margin: 0 0 16px;
        }

        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--c-primary);
            background: rgba(138, 90, 43, .08);
            border: 1px solid rgba(138, 90, 43, .18);
            padding: 3px 10px;
            border-radius: 100px;
        }

        .card-tag i {
            margin-right: 4px;
            font-size: 11px;
        }

        /* ===== 流程时间线 ===== */
        .steps-section {
            background: var(--c-dark);
            border-bottom: 4px solid var(--c-accent);
        }

        .steps-section .section-tag {
            background: rgba(196, 122, 62, .16);
            color: #f0c49a;
            border-color: rgba(196, 122, 62, .32);
        }

        .steps-section .section-head h2 {
            color: var(--c-cream);
        }

        .steps-section .section-head p {
            color: rgba(244, 237, 225, .62);
        }

        .step-timeline {
            position: relative;
            padding: 10px 0 6px;
        }

        .step-timeline::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 30px;
            bottom: 30px;
            width: 2px;
            background: rgba(214, 199, 169, .3);
        }

        .step-item {
            position: relative;
            padding-left: 88px;
            padding-bottom: 34px;
        }

        .step-item:last-child {
            padding-bottom: 0;
        }

        .step-dot {
            position: absolute;
            left: 12px;
            top: 2px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--c-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
            border: 3px solid var(--c-dark);
            box-shadow: 0 0 0 2px rgba(196, 122, 62, .65);
        }

        .step-item h3 {
            font-family: var(--font-serif);
            font-size: 21px;
            font-weight: 800;
            color: var(--c-cream);
            margin: 0 0 8px;
        }

        .step-item p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(244, 237, 225, .68);
            margin: 0;
            max-width: 560px;
        }

        .step-note {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-size: 13px;
            color: #f0c49a;
        }

        .step-note i {
            font-size: 12px;
        }

        /* ===== 帮助笔记 ===== */
        .notes-section {
            background: var(--c-bg);
        }

        .log-card {
            display: flex;
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-left: 4px solid var(--c-primary);
            box-shadow: 4px 4px 0 rgba(58, 52, 44, .06);
            overflow: hidden;
            height: 100%;
            transition: box-shadow .25s ease, transform .25s ease;
        }

        .log-card:hover {
            box-shadow: 8px 8px 0 rgba(58, 52, 44, .1);
            transform: translateY(-3px);
        }

        .log-card .log-media {
            width: 44%;
            min-height: 200px;
            flex-shrink: 0;
            overflow: hidden;
        }

        .log-card .log-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            filter: saturate(.85) sepia(.06);
        }

        .log-card .log-body {
            padding: 26px 26px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .log-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .log-meta .log-tag {
            background: rgba(138, 90, 43, .1);
            color: var(--c-primary);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border: 1px solid rgba(138, 90, 43, .18);
            border-radius: 100px;
        }

        .log-meta .log-date {
            font-size: 12px;
            color: var(--c-muted);
        }

        .log-body h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            font-weight: 800;
            margin: 0 0 10px;
            line-height: 1.4;
            color: var(--c-ink);
        }

        .log-body p {
            font-size: 14px;
            color: var(--c-muted);
            line-height: 1.7;
            margin: 0 0 14px;
        }

        .log-link {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .log-link i {
            font-size: 12px;
            transition: transform .22s ease;
        }

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

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--c-cream);
            border-bottom: 1px solid var(--c-border);
        }

        .stat-block {
            text-align: center;
            padding: 34px 16px;
            border: 1px solid var(--c-border);
            background: var(--c-card);
            box-shadow: 4px 4px 0 rgba(58, 52, 44, .05);
            position: relative;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .stat-block:hover {
            transform: translateY(-4px);
            box-shadow: 8px 8px 0 rgba(58, 52, 44, .08);
        }

        .stat-number {
            font-family: var(--font-serif);
            font-size: 38px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-muted);
        }

        .stat-icon {
            font-size: 22px;
            color: var(--c-accent);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--c-bg);
        }

        .vintage-accordion .accordion-item {
            background: var(--c-card);
            border: 1px solid var(--c-border);
            border-radius: 0;
            margin-bottom: 14px;
            box-shadow: 2px 2px 0 rgba(58, 52, 44, .04);
        }

        .vintage-accordion .accordion-item:first-child .accordion-button {
            border-radius: 0;
        }

        .vintage-accordion .accordion-button {
            background: transparent;
            color: var(--c-ink);
            font-size: 16px;
            font-weight: 700;
            padding: 20px 26px;
            box-shadow: none;
            border: none;
            font-family: var(--font-sans);
        }

        .vintage-accordion .accordion-button:not(.collapsed) {
            color: var(--c-primary);
            background: rgba(138, 90, 43, .05);
            box-shadow: none;
        }

        .vintage-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(138, 90, 43, .15);
            border-radius: 0;
        }

        .vintage-accordion .accordion-button::after {
            background: none;
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            width: auto;
            height: auto;
            color: var(--c-primary);
        }

        .vintage-accordion .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: none;
        }

        .vintage-accordion .accordion-body {
            padding: 4px 26px 24px;
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.85;
            border-top: 1px dashed rgba(138, 90, 43, .18);
        }

        .vintage-accordion .accordion-body strong {
            color: var(--c-ink);
        }

        /* ===== CTA ===== */
        .help-cta {
            background:
                linear-gradient(180deg, rgba(38, 34, 28, .92), rgba(38, 34, 28, .82)),
                url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 92px 0;
            text-align: center;
            border-top: 4px solid var(--c-accent);
        }

        .help-cta h2 {
            font-family: var(--font-serif);
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .help-cta p {
            color: rgba(244, 237, 225, .8);
            font-size: 16px;
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--c-dark);
            color: rgba(244, 237, 225, .7);
            padding: 68px 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(244, 237, 225, .1);
        }

        .site-footer .logo {
            font-size: 19px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(244, 237, 225, .6);
            max-width: 360px;
            margin: 0;
        }

        .footer-title {
            font-family: var(--font-serif);
            font-size: 16px;
            font-weight: 700;
            color: var(--c-cream);
            margin: 0 0 16px;
            letter-spacing: .5px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: rgba(244, 237, 225, .62);
            transition: color .2s ease;
        }

        .footer-links a:hover {
            color: #f0c49a;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(244, 237, 225, .45);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            :root {
                --section-pad: 72px;
            }

            .site-header .container {
                min-height: 62px;
            }

            .nav-toggle {
                display: flex;
            }

            .site-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--c-dark);
                padding: 10px 0 18px;
                border-top: 1px solid rgba(244, 237, 225, .08);
                gap: 2px;
            }

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

            .site-nav a {
                width: 100%;
                text-align: center;
                padding: 13px 12px;
                font-size: 15px;
            }

            .help-hero {
                padding: 80px 0 74px;
            }

            .help-hero h1 {
                font-size: 36px;
            }

            .log-card {
                flex-direction: column;
            }

            .log-card .log-media {
                width: 100%;
                min-height: 180px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 58px;
            }

            .section-head h2 {
                font-size: 27px;
            }

            .help-hero {
                padding: 62px 0 58px;
            }

            .help-hero h1 {
                font-size: 30px;
            }

            .help-hero p.lead-text {
                font-size: 15px;
            }

            .hero-meta {
                gap: 10px;
            }

            .step-item {
                padding-left: 64px;
            }

            .step-timeline::before {
                left: 19px;
            }

            .step-dot {
                left: 8px;
                width: 24px;
                height: 24px;
                font-size: 12px;
            }

            .stat-block {
                margin-bottom: 20px;
            }

            .help-cta h2 {
                font-size: 27px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .logo {
                font-size: 16px;
                gap: 7px;
            }

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

            .help-hero h1 {
                font-size: 25px;
            }

            .btn-vintage,
            .btn-outline-vintage {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
            }

            .log-card .log-media {
                min-height: 150px;
            }

            .log-body {
                padding: 20px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }