/* roulang page: index */
:root {
            --hth-primary: #1A1A2E;
            --hth-accent: #8C7A5B;
            --hth-accent-hover: #A08B6E;
            --hth-accent-active: #6E5F46;
            --hth-bg: #F9F7F3;
            --hth-bg-alt: #E8E3DA;
            --hth-text: #333344;
            --hth-text-secondary: #5A5A7A;
            --hth-text-muted: #8C8CA0;
            --hth-border: #C5C5D0;
            --hth-card-shadow: 0 4px 20px rgba(0,0,0,0.06);
            --hth-card-shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
            --hth-radius-card: 12px;
            --hth-radius-btn: 6px;
            --hth-radius-badge: 4px;
            --hth-radius-input: 8px;
            --hth-font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --hth-font-en: "Inter", -apple-system, sans-serif;
            --hth-nav-width: 240px;
            --hth-header-height: 64px;
            --hth-mobile-header-height: 56px;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--hth-font-sans);
            background: var(--hth-bg);
            color: var(--hth-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
        a:hover { color: var(--hth-accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        .container { max-width: 1320px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
        .container-fluid { padding-left: 24px; padding-right: 24px; }

        /* ===== Layout: Left Nav + Main ===== */
        .hth-app-wrapper { display: flex; min-height: 100vh; }

        /* ===== Left Navigation ===== */
        .hth-nav {
            position: fixed; top: 0; left: 0; width: var(--hth-nav-width); height: 100vh;
            background: var(--hth-primary); z-index: 1030;
            box-shadow: 2px 0 16px rgba(0,0,0,0.08);
            display: flex; flex-direction: column; overflow-y: auto;
        }
        .hth-nav-logo {
            height: var(--hth-header-height); padding: 0 20px;
            display: flex; align-items: center; flex-shrink: 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .hth-nav-logo a {
            font-size: 1.25rem; font-weight: 500; color: #FFFFFF;
            letter-spacing: 0.06em; white-space: nowrap;
        }
        .hth-nav-logo a:hover { color: var(--hth-accent); }
        .hth-nav-menu { flex: 1; padding: 16px 0; list-style: none; margin: 0; }
        .hth-nav-item { margin: 0; }
        .hth-nav-link {
            display: flex; align-items: center; padding: 12px 20px;
            font-size: 0.95rem; font-weight: 400; color: #8C8CA0;
            position: relative; transition: all 0.25s ease; border-left: 3px solid transparent;
        }
        .hth-nav-link:hover { color: #FFFFFF; background: rgba(255,255,255,0.04); }
        .hth-nav-link.active {
            color: #FFFFFF; background: #2A2A3E; font-weight: 500;
            border-left-color: var(--hth-accent);
        }
        .hth-nav-link i { width: 24px; margin-right: 12px; font-size: 1.1rem; text-align: center; }
        .hth-nav-divider {
            height: 1px; background: rgba(255,255,255,0.08); margin: 8px 20px;
        }
        .hth-nav-cta .hth-nav-link { color: var(--hth-accent); }
        .hth-nav-cta .hth-nav-link:hover { color: #FFFFFF; background: var(--hth-accent); }

        /* ===== Main Content Area ===== */
        .hth-main {
            margin-left: var(--hth-nav-width); flex: 1; min-height: 100vh;
            display: flex; flex-direction: column;
        }
        .hth-main-content { flex: 1; }

        /* ===== Mobile Header ===== */
        .hth-mobile-header {
            display: none; position: fixed; top: 0; left: 0; width: 100%;
            height: var(--hth-mobile-header-height); background: var(--hth-primary);
            z-index: 1020; padding: 0 16px; align-items: center; justify-content: space-between;
        }
        .hth-mobile-logo { font-size: 1.15rem; font-weight: 500; color: #FFFFFF; letter-spacing: 0.06em; }
        .hth-mobile-burger {
            background: none; border: none; color: #FFFFFF; font-size: 1.5rem;
            cursor: pointer; padding: 4px 8px; border-radius: var(--hth-radius-btn);
            transition: background 0.2s;
        }
        .hth-mobile-burger:hover { background: rgba(255,255,255,0.1); }
        .hth-mobile-overlay {
            display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5);
            z-index: 1040;
        }
        .hth-mobile-drawer {
            position: fixed; top: 0; left: -280px; width: 280px; height: 100vh;
            background: var(--hth-primary); z-index: 1050;
            transition: left 0.3s ease; padding-top: var(--hth-mobile-header-height);
            box-shadow: 2px 0 20px rgba(0,0,0,0.3);
        }
        .hth-mobile-drawer.open { left: 0; }
        .hth-mobile-drawer .hth-nav-menu { padding: 0; }
        .hth-mobile-drawer .hth-nav-link { padding: 14px 20px; }

        /* ===== Hero ===== */
        .hth-hero {
            position: relative; width: 100%; min-height: 80vh;
            display: flex; align-items: flex-end;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hth-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(to bottom, rgba(26,26,46,0.2) 0%, rgba(26,26,46,0.85) 100%);
            z-index: 1;
        }
        .hth-hero-content { position: relative; z-index: 2; width: 100%; padding: 60px 0 120px; }
        .hth-hero-content .container { max-width: 1320px; }
        .hth-hero-title {
            font-size: 3.5rem; font-weight: 500; color: #FFFFFF;
            letter-spacing: 0.04em; line-height: 1.2; margin: 0 0 16px;
            max-width: 800px;
        }
        .hth-hero-sub {
            font-size: 1.125rem; color: rgba(255,255,255,0.78);
            font-weight: 300; margin: 0 0 32px; max-width: 600px;
        }
        .hth-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hth-btn {
            display: inline-flex; align-items: center; justify-content: center;
            padding: 12px 32px; font-size: 1rem; font-weight: 500;
            border-radius: var(--hth-radius-btn); border: none;
            cursor: pointer; transition: all 0.25s ease; text-decoration: none;
        }
        .hth-btn-primary {
            background: var(--hth-accent); color: #FFFFFF;
        }
        .hth-btn-primary:hover { background: var(--hth-accent-hover); color: #FFFFFF; box-shadow: 0 4px 16px rgba(140,122,91,0.25); }
        .hth-btn-primary:active { background: var(--hth-accent-active); }
        .hth-btn-outline {
            background: transparent; color: rgba(255,255,255,0.9);
            border: 2px solid rgba(255,255,255,0.4);
        }
        .hth-btn-outline:hover { background: rgba(255,255,255,0.15); color: #FFFFFF; border-color: rgba(255,255,255,0.6); }
        .hth-btn-accent {
            background: var(--hth-accent); color: #FFFFFF;
        }
        .hth-btn-accent:hover { background: var(--hth-accent-hover); color: #FFFFFF; box-shadow: 0 4px 16px rgba(140,122,91,0.25); }

        /* ===== Section Common ===== */
        .hth-section { padding: 80px 0; }
        .hth-section-alt { background: var(--hth-bg-alt); }
        .hth-section-dark { background: var(--hth-primary); }
        .hth-section-title {
            font-size: 1.75rem; font-weight: 500; color: var(--hth-primary);
            margin: 0 0 40px; letter-spacing: 0.02em;
        }
        .hth-section-title-light { color: #FFFFFF; }

        /* ===== Horizontal Scroll ===== */
        .hth-scroll-wrap { position: relative; }
        .hth-scroll {
            display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
            padding-bottom: 16px; margin: 0 -24px; padding-left: 24px; padding-right: 24px;
            -webkit-overflow-scrolling: touch;
        }
        .hth-scroll::-webkit-scrollbar { display: none; }
        .hth-scroll-card {
            flex-shrink: 0; scroll-snap-align: start;
            width: 220px; background: #FFFFFF; border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            overflow: hidden; transition: box-shadow 0.3s ease;
        }
        .hth-scroll-card:hover { box-shadow: var(--hth-card-shadow-hover); }
        .hth-scroll-card-img {
            aspect-ratio: 3/4; background: var(--hth-bg-alt);
            display: flex; align-items: center; justify-content: center;
            overflow: hidden;
        }
        .hth-scroll-card-img img { width: 100%; height: 100%; object-fit: cover; }
        .hth-scroll-card-img .placeholder-icon { font-size: 2.5rem; color: var(--hth-text-muted); }
        .hth-scroll-card-body { padding: 12px; position: relative; }
        .hth-scroll-card-title {
            font-size: 0.875rem; font-weight: 400; color: var(--hth-text);
            white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin: 0 0 4px;
        }
        .hth-scroll-card-badge {
            position: absolute; top: 8px; right: 8px;
            font-size: 0.7rem; background: var(--hth-accent); color: #FFFFFF;
            padding: 2px 8px; border-radius: var(--hth-radius-badge); line-height: 1.4;
        }
        .hth-scroll-empty {
            flex: 1; text-align: center; padding: 40px 20px;
            color: var(--hth-text-muted); font-size: 1rem;
        }

        /* ===== Grid Cards (热播推荐) ===== */
        .hth-grid-cards { display: grid; gap: 24px; }
        .hth-grid-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
        .hth-grid-card {
            background: #FFFFFF; border-radius: var(--hth-radius-card);
            box-shadow: var(--hth-card-shadow); overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .hth-grid-card:hover { box-shadow: var(--hth-card-shadow-hover); transform: translateY(-4px); }
        .hth-grid-card-img {
            aspect-ratio: 16/9; background: var(--hth-bg-alt);
            display: flex; align-items: center; justify-content: center; overflow: hidden;
        }
        .hth-grid-card-img img { width: 100%; height: 100%; object-fit: cover; }
        .hth-grid-card-img .placeholder-icon { font-size: 3rem; color: var(--hth-text-muted); }
        .hth-grid-card-body { padding: 20px; }
        .hth-grid-card-title {
            font-size: 1.125rem; font-weight: 500; color: var(--hth-primary);
            margin: 0 0 8px; line-height: 1.3;
        }
        .hth-grid-card-desc {
            font-size: 0.875rem; color: var(--hth-text-secondary); line-height: 1.5;
            display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
            overflow: hidden; margin: 0 0 12px;
        }
        .hth-grid-card-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .hth-tag {
            font-size: 0.75rem; font-weight: 400; color: var(--hth-accent);
            background: #F5F0E8; padding: 3px 10px; border-radius: var(--hth-radius-badge);
            line-height: 1.4;
        }
        .hth-grid-card-link {
            font-size: 0.875rem; color: var(--hth-accent); font-weight: 500;
            position: relative; display: inline-block;
        }
        .hth-grid-card-link::after {
            content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
            background: var(--hth-accent); transition: width 0.3s ease;
        }
        .hth-grid-card-link:hover::after { width: 100%; }

        /* ===== 片单分区 ===== */
        .hth-shelf { margin-bottom: 48px; }
        .hth-shelf:last-child { margin-bottom: 0; }
        .hth-shelf-header {
            display: flex; align-items: center; justify-content: space-between;
            margin-bottom: 20px;
        }
        .hth-shelf-title {
            font-size: 1.5rem; font-weight: 500; color: var(--hth-primary);
            margin: 0; padding-left: 12px; position: relative;
        }
        .hth-shelf-title::before {
            content: ''; position: absolute; left: 0; top: 4px; bottom: 4px;
            width: 4px; background: var(--hth-accent); border-radius: 2px;
        }
        .hth-shelf-more {
            font-size: 0.875rem; color: var(--hth-accent); font-weight: 500;
            transition: color 0.2s;
        }
        .hth-shelf-more:hover { color: var(--hth-accent-hover); }
        .hth-shelf .hth-scroll-card { width: 240px; }

        /* ===== Latest News (CMS) ===== */
        .hth-news-list { display: flex; flex-direction: column; gap: 16px; }
        .hth-news-card {
            display: flex; gap: 16px; background: #FFFFFF;
            border-radius: var(--hth-radius-card); box-shadow: var(--hth-card-shadow);
            padding: 16px; transition: box-shadow 0.3s ease;
        }
        .hth-news-card:hover { box-shadow: var(--hth-card-shadow-hover); }
        .hth-news-thumb {
            width: 120px; height: 80px; flex-shrink: 0;
            border-radius: 6px; background: var(--hth-bg-alt);
            overflow: hidden; display: flex; align-items: center; justify-content: center;
        }
        .hth-news-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .hth-news-thumb .placeholder-icon { font-size: 1.8rem; color: var(--hth-text-muted); }
        .hth-news-body { flex: 1; min-width: 0; }
        .hth-news-title {
            font-size: 1rem; font-weight: 500; color: var(--hth-primary);
            margin: 0 0 6px; line-height: 1.4;
        }
        .hth-news-title a { color: inherit; }
        .hth-news-title a:hover { color: var(--hth-accent); }
        .hth-news-excerpt {
            font-size: 0.875rem; color: var(--hth-text-secondary); line-height: 1.5;
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
            overflow: hidden; margin: 0 0 8px;
        }
        .hth-news-footer {
            display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
        }
        .hth-news-date { font-size: 0.75rem; color: var(--hth-text-muted); }
        .hth-news-cat {
            font-size: 0.7rem; color: var(--hth-accent); background: #F5F0E8;
            padding: 2px 8px; border-radius: var(--hth-radius-badge);
        }
        .hth-news-empty {
            background: #F5F5F7; border-radius: 8px; padding: 40px;
            text-align: center; color: var(--hth-text-muted); font-size: 1rem;
        }

        /* ===== CTA Block ===== */
        .hth-cta {
            padding: 80px 0; background: var(--hth-primary);
            text-align: center;
        }
        .hth-cta-title {
            font-size: 2rem; font-weight: 400; color: #FFFFFF;
            letter-spacing: 0.06em; margin: 0 0 12px;
        }
        .hth-cta-desc {
            font-size: 1rem; color: rgba(255,255,255,0.7);
            margin: 0 0 32px; max-width: 600px; margin-left: auto; margin-right: auto;
        }
        .hth-cta .hth-btn-primary {
            background: var(--hth-accent);
        }
        .hth-cta .hth-btn-primary:hover { background: var(--hth-accent-hover); }

        /* ===== Footer ===== */
        .hth-footer {
            background: var(--hth-primary); padding: 48px 0 0; color: #8C8CA0;
            font-size: 0.875rem;
        }
        .hth-footer-brand { margin-bottom: 16px; }
        .hth-footer-logo {
            font-size: 1.25rem; font-weight: 500; color: #FFFFFF;
            letter-spacing: 0.06em; display: block; margin-bottom: 8px;
        }
        .hth-footer-desc { line-height: 1.6; color: #8C8CA0; font-size: 0.875rem; }
        .hth-footer-title {
            font-size: 0.95rem; font-weight: 500; color: #FFFFFF;
            margin: 0 0 12px;
        }
        .hth-footer-links { list-style: none; padding: 0; margin: 0; }
        .hth-footer-links li { margin-bottom: 8px; }
        .hth-footer-links a { color: #8C8CA0; font-size: 0.875rem; }
        .hth-footer-links a:hover { color: var(--hth-accent); }
        .hth-footer-social { display: flex; gap: 12px; margin-top: 8px; }
        .hth-footer-social a {
            width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
            border-radius: 50%; background: rgba(255,255,255,0.06);
            color: #8C8CA0; transition: all 0.25s ease;
        }
        .hth-footer-social a:hover { background: var(--hth-accent); color: #FFFFFF; }
        .hth-footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 16px 0; margin-top: 32px;
            font-size: 0.8rem; color: #6E6E8A; text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hth-nav { display: none; }
            .hth-mobile-header { display: flex; }
            .hth-main { margin-left: 0; padding-top: var(--hth-mobile-header-height); }
            .hth-hero { min-height: 60vh; }
            .hth-hero-content { padding: 40px 0 80px; }
            .hth-hero-title { font-size: 2.5rem; }
            .hth-section { padding: 60px 0; }
            .hth-cta { padding: 60px 0; }
            .hth-grid-cards.cols-3 { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .hth-hero-title { font-size: 2rem; }
            .hth-hero-sub { font-size: 1rem; }
            .hth-hero-content { padding: 24px 0 60px; }
            .hth-section { padding: 48px 0; }
            .hth-section-title { font-size: 1.5rem; margin-bottom: 28px; }
            .hth-grid-cards.cols-3 { grid-template-columns: 1fr; gap: 16px; }
            .hth-scroll-card { width: 180px; }
            .hth-shelf .hth-scroll-card { width: 200px; }
            .hth-news-card { flex-direction: column; }
            .hth-news-thumb { width: 100%; height: 120px; }
            .hth-cta { padding: 48px 0; }
            .hth-cta-title { font-size: 1.5rem; }
            .hth-footer .row > div { margin-bottom: 24px; }
        }
        @media (max-width: 576px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hth-hero-title { font-size: 1.75rem; }
            .hth-hero-actions { flex-direction: column; width: 100%; }
            .hth-hero-actions .hth-btn { width: 100%; justify-content: center; }
            .hth-scroll-card { width: 140px; }
            .hth-shelf .hth-scroll-card { width: 160px; }
            .hth-section { padding: 32px 0; }
            .hth-cta-title { font-size: 1.25rem; }
            .hth-news-thumb { height: 100px; }
        }

        /* ===== Image fallback ===== */
        .hth-img-fallback {
            background: var(--hth-bg-alt); display: flex;
            align-items: center; justify-content: center;
            color: var(--hth-text-muted); font-size: 2rem;
        }

        /* ===== Utility ===== */
        .hth-mb-0 { margin-bottom: 0 !important; }
        .hth-text-center { text-align: center; }

/* roulang page: category1 */
:root {
            --hth-primary: #1A1A2E;
            --hth-secondary: #8C7A5B;
            --hth-secondary-hover: #A08B6E;
            --hth-secondary-active: #6E5F46;
            --hth-bg: #F9F7F3;
            --hth-bg-alt: #E8E3DA;
            --hth-text: #333344;
            --hth-text-light: #5A5A7A;
            --hth-text-lighter: #8C8CA0;
            --hth-border: #C5C5D0;
            --hth-white: #FFFFFF;
            --hth-card-shadow: 0 4px 20px rgba(0,0,0,0.06);
            --hth-card-shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
            --hth-radius-card: 12px;
            --hth-radius-btn: 6px;
            --hth-radius-badge: 4px;
            --hth-radius-img: 8px;
            --hth-font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --hth-font-en: "Inter", -apple-system, sans-serif;
            --hth-transition: 0.25s ease;
            --hth-nav-width: 240px;
            --hth-header-height: 64px;
        }

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

        body {
            font-family: var(--hth-font-cn);
            background: var(--hth-bg);
            color: var(--hth-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            padding-left: var(--hth-nav-width);
            min-height: 100vh;
        }

        a {
            color: var(--hth-text);
            text-decoration: none;
            transition: var(--hth-transition);
        }
        a:hover {
            color: var(--hth-secondary);
        }

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

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

        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Navigation (Left App Shell) ===== */
        .hth-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--hth-nav-width);
            height: 100vh;
            background: var(--hth-primary);
            z-index: 1030;
            box-shadow: 2px 0 16px rgba(0, 0, 0, 0.08);
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .hth-nav-logo {
            height: var(--hth-header-height);
            padding: 0 20px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hth-nav-logo a {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
        }
        .hth-nav-logo a:hover {
            color: var(--hth-secondary);
        }

        .hth-nav-menu {
            list-style: none;
            padding: 12px 0;
            margin: 0;
            flex: 1;
        }

        .hth-nav-item {
            padding: 0;
        }

        .hth-nav-link {
            display: flex;
            align-items: center;
            padding: 12px 20px;
            font-size: 0.95rem;
            color: #8C8CA0;
            background: transparent;
            border: none;
            border-left: 3px solid transparent;
            transition: var(--hth-transition);
            gap: 10px;
        }
        .hth-nav-link i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
        }
        .hth-nav-link:hover {
            color: var(--hth-white);
            background: rgba(255, 255, 255, 0.04);
        }
        .hth-nav-link.active {
            background: #2A2A3E;
            color: var(--hth-white);
            border-left-color: var(--hth-secondary);
            font-weight: 500;
        }

        .hth-nav-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.08);
            margin: 8px 20px;
        }

        .hth-nav-cta .hth-nav-link {
            color: var(--hth-secondary);
        }
        .hth-nav-cta .hth-nav-link:hover {
            color: var(--hth-white);
            background: rgba(140, 122, 91, 0.15);
        }

        /* ===== Mobile Nav Toggle ===== */
        .hth-mobile-toggle {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--hth-primary);
            z-index: 1040;
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
        }
        .hth-mobile-toggle .hth-mobile-logo {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
        }
        .hth-mobile-toggle .hth-hamburger {
            background: none;
            border: none;
            color: var(--hth-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
        }

        .hth-mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1035;
        }
        .hth-mobile-overlay.show {
            display: block;
        }

        /* ===== Main Content ===== */
        .hth-main {
            min-height: 100vh;
            padding-bottom: 0;
        }

        /* ===== Category Hero ===== */
        .hth-category-hero {
            background: var(--hth-primary);
            background-image: linear-gradient(to bottom, rgba(26, 26, 46, 0.3), rgba(26, 26, 46, 0.92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 100px 0 80px;
            position: relative;
        }
        .hth-category-hero .hth-hero-title {
            font-size: 3rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .hth-category-hero .hth-hero-sub {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.78);
            font-weight: 300;
            max-width: 600px;
            line-height: 1.7;
        }

        /* ===== Section ===== */
        .hth-section {
            padding: 60px 0;
        }
        .hth-section-title {
            font-size: 1.75rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .hth-section-desc {
            font-size: 1rem;
            color: var(--hth-text-light);
            max-width: 720px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        /* ===== Card Grid (分类内容卡片) ===== */
        .hth-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .hth-card {
            background: var(--hth-white);
            border-radius: var(--hth-radius-card);
            box-shadow: var(--hth-card-shadow);
            overflow: hidden;
            transition: var(--hth-transition);
            cursor: default;
        }
        .hth-card:hover {
            box-shadow: var(--hth-card-shadow-hover);
            transform: translateY(-4px);
        }

        .hth-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--hth-bg-alt);
        }
        .hth-card-img-placeholder {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: var(--hth-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--hth-text-lighter);
            font-size: 2rem;
        }

        .hth-card-body {
            padding: 20px;
        }
        .hth-card-title {
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .hth-card-text {
            font-size: 0.875rem;
            color: var(--hth-text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .hth-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--hth-secondary);
            font-weight: 400;
            background: #F5F0E8;
            padding: 2px 10px;
            border-radius: var(--hth-radius-badge);
        }
        .hth-card-link {
            font-size: 0.875rem;
            color: var(--hth-secondary);
            font-weight: 400;
            display: inline-block;
            position: relative;
        }
        .hth-card-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--hth-secondary);
            transition: var(--hth-transition);
        }
        .hth-card-link:hover::after {
            width: 100%;
        }

        /* ===== Flow / Steps ===== */
        .hth-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .hth-flow-step {
            text-align: center;
            padding: 32px 16px;
            background: var(--hth-white);
            border-radius: var(--hth-radius-card);
            box-shadow: var(--hth-card-shadow);
            transition: var(--hth-transition);
        }
        .hth-flow-step:hover {
            box-shadow: var(--hth-card-shadow-hover);
            transform: translateY(-4px);
        }
        .hth-flow-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--hth-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--hth-secondary);
        }
        .hth-flow-step h4 {
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-bottom: 8px;
        }
        .hth-flow-step p {
            font-size: 0.875rem;
            color: var(--hth-text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .hth-faq {
            max-width: 800px;
            margin: 0 auto;
        }
        .hth-faq-item {
            border-bottom: 1px solid var(--hth-bg-alt);
            padding: 0;
        }
        .hth-faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--hth-primary);
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--hth-transition);
        }
        .hth-faq-question:hover {
            color: var(--hth-secondary);
        }
        .hth-faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--hth-secondary);
            transition: var(--hth-transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .hth-faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }
        .hth-faq-answer {
            padding: 0 0 18px 0;
            font-size: 0.9rem;
            color: var(--hth-text-light);
            line-height: 1.6;
        }

        /* ===== CTA Section ===== */
        .hth-cta-section {
            background: var(--hth-primary);
            padding: 80px 0;
            text-align: center;
        }
        .hth-cta-section h2 {
            font-size: 2rem;
            font-weight: 400;
            color: var(--hth-white);
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }
        .hth-cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hth-btn {
            display: inline-block;
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 400;
            border-radius: var(--hth-radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--hth-transition);
            text-align: center;
        }
        .hth-btn-primary {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }
        .hth-btn-primary:hover {
            background: var(--hth-secondary-hover);
            color: var(--hth-white);
            box-shadow: 0 4px 16px rgba(140, 122, 91, 0.25);
            transform: translateY(-1px);
        }
        .hth-btn-primary:active {
            background: var(--hth-secondary-active);
            transform: translateY(0);
        }

        .hth-btn-outline {
            background: transparent;
            color: var(--hth-secondary);
            border: 2px solid var(--hth-secondary);
        }
        .hth-btn-outline:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }

        /* ===== Footer ===== */
        .hth-footer {
            background: var(--hth-primary);
            padding: 48px 0 0;
            color: var(--hth-text-lighter);
            font-size: 0.875rem;
        }
        .hth-footer .hth-footer-logo {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
        }
        .hth-footer .hth-footer-logo:hover {
            color: var(--hth-secondary);
        }
        .hth-footer-desc {
            margin-top: 12px;
            line-height: 1.7;
            color: var(--hth-text-lighter);
            max-width: 360px;
        }
        .hth-footer-title {
            font-size: 1rem;
            font-weight: 500;
            color: var(--hth-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .hth-footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hth-footer-links li {
            margin-bottom: 10px;
        }
        .hth-footer-links a {
            color: var(--hth-text-lighter);
            font-size: 0.875rem;
        }
        .hth-footer-links a:hover {
            color: var(--hth-secondary);
        }
        .hth-footer-social {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }
        .hth-footer-social a {
            color: var(--hth-text-lighter);
            font-size: 1.3rem;
        }
        .hth-footer-social a:hover {
            color: var(--hth-secondary);
        }
        .hth-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            margin-top: 32px;
            font-size: 0.8rem;
            color: #6E6E8A;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            body {
                padding-left: 0;
                padding-top: 56px;
            }
            .hth-nav {
                display: none;
            }
            .hth-nav.mobile-open {
                display: flex;
                position: fixed;
                width: 280px;
                top: 56px;
                left: 0;
                height: calc(100vh - 56px);
                z-index: 1045;
            }
            .hth-mobile-toggle {
                display: flex;
            }
            .hth-category-hero {
                padding: 60px 0 50px;
            }
            .hth-category-hero .hth-hero-title {
                font-size: 2.2rem;
            }
            .hth-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hth-flow {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hth-category-hero .hth-hero-title {
                font-size: 1.8rem;
            }
            .hth-category-hero .hth-hero-sub {
                font-size: 1rem;
            }
            .hth-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hth-flow {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hth-section {
                padding: 40px 0;
            }
            .hth-section-title {
                font-size: 1.4rem;
            }
            .hth-cta-section {
                padding: 48px 0;
            }
            .hth-cta-section h2 {
                font-size: 1.5rem;
            }
            .hth-footer .col-lg-4,
            .hth-footer .col-lg-2,
            .hth-footer .col-lg-3 {
                margin-bottom: 24px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .hth-category-hero {
                padding: 40px 0 40px;
            }
            .hth-category-hero .hth-hero-title {
                font-size: 1.6rem;
            }
            .hth-section {
                padding: 32px 0;
            }
            .hth-card-body {
                padding: 16px;
            }
            .hth-flow-step {
                padding: 24px 16px;
            }
        }

        /* ===== Image fallback ===== */
        .hth-img-fallback {
            background: var(--hth-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--hth-text-lighter);
            font-size: 1.5rem;
            min-height: 120px;
        }

/* roulang page: article */
:root {
            --hth-primary: #1A1A2E;
            --hth-secondary: #8C7A5B;
            --hth-bg: #F9F7F3;
            --hth-bg-alt: #E8E3DA;
            --hth-text: #333344;
            --hth-text-light: #5A5A7A;
            --hth-text-muted: #8C8CA0;
            --hth-border: #C5C5D0;
            --hth-white: #FFFFFF;
            --hth-card-shadow: 0 4px 20px rgba(0,0,0,0.06);
            --hth-card-shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
            --hth-radius-card: 12px;
            --hth-radius-btn: 6px;
            --hth-radius-badge: 4px;
            --hth-radius-img: 8px;
            --hth-radius-input: 8px;
            --hth-transition: 0.25s ease;
            --hth-nav-width: 240px;
            --hth-font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --hth-font-en: "Inter", -apple-system, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { font-size: 16px; scroll-behavior: smooth; }
        body {
            font-family: var(--hth-font-cn);
            background: var(--hth-bg);
            color: var(--hth-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: color var(--hth-transition); }
        a:hover { color: var(--hth-secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--hth-radius-img); }
        .container { max-width: 1320px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
        .row { margin-left: -12px; margin-right: -12px; }
        .row > [class*="col-"] { padding-left: 12px; padding-right: 12px; }

        /* ===== Layout ===== */
        .hth-layout {
            display: flex;
            min-height: 100vh;
        }
        .hth-main {
            flex: 1;
            margin-left: var(--hth-nav-width);
            padding: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Nav ===== */
        .hth-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--hth-nav-width);
            height: 100vh;
            background: var(--hth-primary);
            z-index: 1030;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 2px 0 16px rgba(0,0,0,0.08);
            overflow-y: auto;
        }
        .hth-nav-logo {
            height: 64px;
            display: flex;
            align-items: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            flex-shrink: 0;
        }
        .hth-nav-logo a {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
            font-family: var(--hth-font-cn);
        }
        .hth-nav-logo a:hover { color: var(--hth-secondary); }
        .hth-nav-menu {
            list-style: none;
            padding: 12px 0;
            margin: 0;
            flex: 1;
        }
        .hth-nav-item { margin: 0; }
        .hth-nav-link {
            display: flex;
            align-items: center;
            padding: 12px 20px;
            font-size: 0.95rem;
            color: #8C8CA0;
            border-left: 3px solid transparent;
            transition: all var(--hth-transition);
            gap: 10px;
        }
        .hth-nav-link i { width: 20px; text-align: center; font-size: 1rem; }
        .hth-nav-link:hover {
            color: var(--hth-white);
            background: rgba(255,255,255,0.04);
        }
        .hth-nav-link.active,
        .hth-nav-link.active:hover {
            color: var(--hth-white);
            background: #2A2A3E;
            border-left-color: var(--hth-secondary);
            font-weight: 500;
        }
        .hth-nav-divider {
            height: 1px;
            background: rgba(255,255,255,0.08);
            margin: 12px 20px;
        }
        .hth-nav-cta .hth-nav-link {
            color: var(--hth-secondary);
        }
        .hth-nav-cta .hth-nav-link:hover {
            color: var(--hth-white);
            background: var(--hth-secondary);
        }

        /* ===== Mobile Nav ===== */
        .hth-mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--hth-primary);
            z-index: 1020;
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
        }
        .hth-mobile-header .hth-mobile-logo {
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
        }
        .hth-mobile-header .hth-mobile-toggle {
            background: none;
            border: none;
            color: var(--hth-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }
        .hth-mobile-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1040;
        }
        .hth-mobile-overlay.open { display: block; }
        .hth-mobile-drawer {
            position: fixed;
            top: 0;
            left: -300px;
            width: 280px;
            height: 100vh;
            background: var(--hth-primary);
            z-index: 1050;
            transition: left 0.3s ease;
            padding: 20px 0;
            overflow-y: auto;
        }
        .hth-mobile-drawer.open { left: 0; }
        .hth-mobile-drawer .hth-nav-menu { padding: 0; }
        .hth-mobile-drawer .hth-nav-link { padding: 14px 24px; }

        /* ===== Article Page ===== */
        .hth-article-page {
            flex: 1;
            padding: 40px 0 60px;
        }
        .hth-article-container {
            max-width: 720px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Breadcrumb */
        .hth-breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--hth-text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .hth-breadcrumb a { color: var(--hth-text-muted); }
        .hth-breadcrumb a:hover { color: var(--hth-secondary); }
        .hth-breadcrumb .sep { color: #CCC; margin: 0 4px; }

        /* Article Header */
        .hth-article-header {
            margin-bottom: 28px;
        }
        .hth-article-title {
            font-size: 2rem;
            font-weight: 500;
            color: var(--hth-primary);
            line-height: 1.3;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .hth-article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--hth-text-muted);
        }
        .hth-article-meta .hth-meta-date { }
        .hth-article-meta .hth-meta-cat {
            display: inline-block;
            background: #F5F0E8;
            color: var(--hth-secondary);
            padding: 4px 10px;
            border-radius: var(--hth-radius-badge);
            font-size: 0.8rem;
            font-weight: 400;
        }
        .hth-article-meta .hth-meta-read {
            font-size: 0.8rem;
            color: var(--hth-text-muted);
        }

        /* Article Content */
        .hth-article-content {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--hth-text);
        }
        .hth-article-content p {
            margin-bottom: 1.5em;
        }
        .hth-article-content h2 {
            font-size: 1.5rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-top: 2em;
            margin-bottom: 0.8em;
            line-height: 1.3;
        }
        .hth-article-content h3 {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-top: 1.5em;
            margin-bottom: 0.6em;
            line-height: 1.3;
        }
        .hth-article-content ul,
        .hth-article-content ol {
            padding-left: 1.5em;
            margin-bottom: 1.5em;
        }
        .hth-article-content li {
            margin-bottom: 0.5em;
        }
        .hth-article-content blockquote {
            border-left: 4px solid var(--hth-secondary);
            background: #F9F7F3;
            padding: 16px 20px;
            font-size: 0.95rem;
            font-style: italic;
            color: var(--hth-text-light);
            margin: 1.5em 0;
            border-radius: 0 var(--hth-radius-card) var(--hth-radius-card) 0;
        }
        .hth-article-content img {
            max-width: 100%;
            border-radius: var(--hth-radius-img);
            margin: 1em 0;
        }
        .hth-article-content code,
        .hth-article-content pre {
            font-family: monospace;
            font-size: 0.875rem;
            background: #F0F0F2;
            border-radius: var(--hth-radius-badge);
            padding: 2px 8px;
        }
        .hth-article-content pre {
            padding: 12px;
            overflow-x: auto;
            margin: 1em 0;
        }
        .hth-article-content a {
            color: var(--hth-secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .hth-article-content a:hover {
            color: var(--hth-primary);
        }

        /* Article Not Found */
        .hth-article-notfound {
            text-align: center;
            padding: 60px 20px;
            background: #F5F5F7;
            border-radius: var(--hth-radius-card);
            margin: 40px 0;
        }
        .hth-article-notfound p {
            font-size: 1.125rem;
            color: var(--hth-text-light);
            margin-bottom: 20px;
        }
        .hth-article-notfound .hth-btn-back {
            display: inline-block;
            padding: 10px 28px;
            border: 2px solid var(--hth-secondary);
            color: var(--hth-secondary);
            border-radius: var(--hth-radius-btn);
            font-size: 0.95rem;
            transition: all var(--hth-transition);
        }
        .hth-article-notfound .hth-btn-back:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }

        /* Related */
        .hth-related-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--hth-bg-alt);
        }
        .hth-related-title {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-bottom: 24px;
        }
        .hth-related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .hth-related-card {
            background: var(--hth-white);
            border-radius: var(--hth-radius-card);
            overflow: hidden;
            box-shadow: var(--hth-card-shadow);
            transition: all var(--hth-transition);
        }
        .hth-related-card:hover {
            box-shadow: var(--hth-card-shadow-hover);
            transform: translateY(-2px);
        }
        .hth-related-card .hth-rel-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .hth-related-card .hth-rel-body {
            padding: 14px 16px;
        }
        .hth-related-card .hth-rel-title {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hth-related-card .hth-rel-cat {
            font-size: 0.7rem;
            color: var(--hth-secondary);
            background: #F5F0E8;
            padding: 2px 8px;
            border-radius: var(--hth-radius-badge);
            display: inline-block;
        }

        /* Back Button */
        .hth-back-wrap {
            margin-top: 32px;
            text-align: center;
        }
        .hth-btn-back-list {
            display: inline-block;
            padding: 10px 28px;
            border: 2px solid var(--hth-secondary);
            color: var(--hth-secondary);
            border-radius: var(--hth-radius-btn);
            font-size: 0.9rem;
            transition: all var(--hth-transition);
            background: transparent;
        }
        .hth-btn-back-list:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }

        /* ===== Footer ===== */
        .hth-footer {
            background: var(--hth-primary);
            padding: 48px 0 0;
            color: #8C8CA0;
            font-size: 0.875rem;
            flex-shrink: 0;
        }
        .hth-footer-logo {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
        }
        .hth-footer-logo:hover { color: var(--hth-secondary); }
        .hth-footer-desc {
            margin-top: 12px;
            line-height: 1.7;
            color: #8C8CA0;
        }
        .hth-footer-title {
            font-size: 1rem;
            font-weight: 500;
            color: var(--hth-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .hth-footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hth-footer-links li { margin-bottom: 8px; }
        .hth-footer-links a {
            color: #8C8CA0;
            transition: color var(--hth-transition);
        }
        .hth-footer-links a:hover { color: var(--hth-white); }
        .hth-footer-social {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }
        .hth-footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
            color: #8C8CA0;
            font-size: 1.1rem;
            transition: all var(--hth-transition);
        }
        .hth-footer-social a:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }
        .hth-footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 16px 0;
            margin-top: 32px;
            font-size: 0.8rem;
            color: #6E6E8A;
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hth-nav { display: none; }
            .hth-mobile-header { display: flex; }
            .hth-main { margin-left: 0; padding-top: 56px; }
            .hth-article-page { padding: 32px 0 48px; }
            .hth-article-title { font-size: 1.65rem; }
            .hth-related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .hth-article-title { font-size: 1.4rem; }
            .hth-article-meta { gap: 10px; font-size: 0.8rem; }
            .hth-article-container { padding: 0 16px; }
            .hth-related-grid { grid-template-columns: 1fr; }
            .hth-footer { padding: 32px 0 0; }
            .hth-footer .col-md-6 { margin-bottom: 24px; }
        }
        @media (max-width: 576px) {
            .hth-article-page { padding: 24px 0 36px; }
            .hth-article-title { font-size: 1.25rem; }
            .hth-article-content { font-size: 0.95rem; }
            .hth-breadcrumb { font-size: 0.75rem; }
            .hth-related-grid { gap: 14px; }
            .hth-back-wrap { margin-top: 24px; }
            .hth-footer-bottom { font-size: 0.7rem; }
        }
        @media (max-width: 1024px) and (min-width: 769px) {
            .hth-related-grid { grid-template-columns: repeat(2, 1fr); }
        }

/* roulang page: category2 */
:root {
            --hth-primary: #1A1A2E;
            --hth-secondary: #8C7A5B;
            --hth-bg: #F9F7F3;
            --hth-bg-alt: #E8E3DA;
            --hth-text: #333344;
            --hth-text-light: #5A5A7A;
            --hth-text-muted: #8C8CA0;
            --hth-border: #C5C5D0;
            --hth-white: #FFFFFF;
            --hth-card-radius: 12px;
            --hth-btn-radius: 6px;
            --hth-shadow: 0 4px 20px rgba(0,0,0,0.06);
            --hth-shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
            --hth-transition: 0.3s ease;
            --hth-font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --hth-font-en: "Inter", -apple-system, sans-serif;
            --hth-nav-width: 240px;
        }

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

        body {
            font-family: var(--hth-font-sans);
            color: var(--hth-text);
            background: var(--hth-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-left: var(--hth-nav-width);
        }

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

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

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

        ul, ol {
            padding-left: 1.5em;
        }

        .container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 左侧导航 ===== */
        .hth-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--hth-nav-width);
            height: 100vh;
            background: var(--hth-primary);
            z-index: 1030;
            box-shadow: 2px 0 16px rgba(0,0,0,0.08);
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            padding: 0;
        }

        .hth-nav-logo {
            height: 64px;
            padding: 20px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .hth-nav-logo a {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
            font-family: var(--hth-font-sans);
        }

        .hth-nav-menu {
            list-style: none;
            padding: 12px 0;
            margin: 0;
            flex: 1;
        }

        .hth-nav-item {
            padding: 0;
            margin: 0;
        }

        .hth-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            font-size: 0.95rem;
            color: #8C8CA0;
            background: transparent;
            border: none;
            border-left: 3px solid transparent;
            transition: var(--hth-transition);
            cursor: pointer;
            font-family: var(--hth-font-sans);
        }

        .hth-nav-link i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
        }

        .hth-nav-link:hover {
            color: var(--hth-white);
            background: rgba(255,255,255,0.04);
        }

        .hth-nav-link.active {
            color: var(--hth-white);
            background: #2A2A3E;
            border-left-color: var(--hth-secondary);
            font-weight: 500;
        }

        .hth-nav-divider {
            height: 1px;
            background: rgba(255,255,255,0.08);
            margin: 12px 20px;
            list-style: none;
        }

        .hth-nav-cta .hth-nav-link {
            color: var(--hth-secondary);
        }

        .hth-nav-cta .hth-nav-link:hover {
            color: #A08B6E;
        }

        /* ===== 移动端导航 ===== */
        .hth-mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--hth-primary);
            z-index: 1035;
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
        }

        .hth-mobile-header .hth-nav-logo {
            height: 56px;
            padding: 0;
            border: none;
        }

        .hth-mobile-header .hth-nav-logo a {
            font-size: 1.15rem;
        }

        .hth-mobile-toggle {
            background: none;
            border: none;
            color: var(--hth-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
        }

        .hth-mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1032;
        }

        .hth-mobile-overlay.show {
            display: block;
        }

        .hth-mobile-drawer {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: var(--hth-primary);
            z-index: 1034;
            transition: left 0.3s ease;
            padding: 0;
            overflow-y: auto;
        }

        .hth-mobile-drawer.show {
            left: 0;
        }

        .hth-mobile-drawer .hth-nav-logo {
            height: 56px;
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .hth-mobile-drawer .hth-nav-menu {
            padding: 8px 0;
        }

        .hth-mobile-drawer .hth-nav-link {
            padding: 14px 20px;
            font-size: 1rem;
        }

        /* ===== Hero ===== */
        .hth-category-hero {
            position: relative;
            background: var(--hth-primary);
            padding: 80px 0 60px;
            overflow: hidden;
        }

        .hth-category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }

        .hth-category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hth-category-hero h1 {
            font-size: 2.5rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.04em;
            margin: 0 0 16px;
            line-height: 1.3;
        }

        .hth-category-hero p {
            font-size: 1.125rem;
            color: rgba(255,255,255,0.78);
            font-weight: 300;
            max-width: 680px;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 内容网格 ===== */
        .hth-section {
            padding: 60px 0;
        }

        .hth-section-title {
            font-size: 1.75rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin: 0 0 8px;
            letter-spacing: 0.02em;
        }

        .hth-section-sub {
            font-size: 1rem;
            color: var(--hth-text-light);
            margin: 0 0 40px;
            line-height: 1.6;
        }

        .hth-card {
            background: var(--hth-white);
            border-radius: var(--hth-card-radius);
            box-shadow: var(--hth-shadow);
            overflow: hidden;
            transition: box-shadow var(--hth-transition), transform var(--hth-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: none;
        }

        .hth-card:hover {
            box-shadow: var(--hth-shadow-hover);
            transform: translateY(-4px);
        }

        .hth-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--hth-bg-alt);
            position: relative;
        }

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

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

        .hth-card-img .hth-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--hth-white);
            background: var(--hth-secondary);
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }

        .hth-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .hth-card-body h3 {
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .hth-card-body p {
            font-size: 0.875rem;
            color: var(--hth-text-light);
            line-height: 1.5;
            margin: 0 0 12px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hth-card-body .hth-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: auto;
        }

        .hth-card-body .hth-card-meta .tag {
            font-size: 0.75rem;
            color: var(--hth-secondary);
            font-weight: 400;
            background: #F5F0E8;
            padding: 2px 10px;
            border-radius: 4px;
        }

        .hth-card-body .hth-card-meta .more {
            font-size: 0.875rem;
            color: var(--hth-secondary);
            margin-left: auto;
            font-weight: 400;
            position: relative;
        }

        .hth-card-body .hth-card-meta .more::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--hth-secondary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .hth-card:hover .hth-card-body .hth-card-meta .more::after {
            transform: scaleX(1);
        }

        /* ===== 服务特点 ===== */
        .hth-features {
            background: var(--hth-white);
            padding: 60px 0;
        }

        .hth-feature-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--hth-card-radius);
            background: var(--hth-bg);
            height: 100%;
            transition: var(--hth-transition);
        }

        .hth-feature-item:hover {
            box-shadow: var(--hth-shadow-hover);
            transform: translateY(-4px);
        }

        .hth-feature-item .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: var(--hth-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--hth-white);
            font-size: 1.4rem;
        }

        .hth-feature-item h4 {
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--hth-primary);
            margin: 0 0 8px;
        }

        .hth-feature-item p {
            font-size: 0.875rem;
            color: var(--hth-text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .hth-faq {
            padding: 60px 0;
            background: var(--hth-bg);
        }

        .hth-faq-item {
            border-bottom: 1px solid var(--hth-bg-alt);
            padding: 0;
        }

        .hth-faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--hth-primary);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-family: var(--hth-font-sans);
            transition: color 0.25s ease;
        }

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

        .hth-faq-question .faq-icon {
            color: var(--hth-secondary);
            font-size: 1.1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .hth-faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }

        .hth-faq-answer {
            padding: 0 0 18px 0;
            font-size: 0.9rem;
            color: var(--hth-text-light);
            line-height: 1.6;
        }

        /* ===== CTA ===== */
        .hth-cta-block {
            background: var(--hth-primary);
            padding: 80px 0;
            text-align: center;
        }

        .hth-cta-block h2 {
            font-size: 2rem;
            font-weight: 400;
            color: var(--hth-white);
            letter-spacing: 0.06em;
            margin: 0 0 12px;
        }

        .hth-cta-block p {
            font-size: 1rem;
            color: rgba(255,255,255,0.7);
            margin: 0 0 32px;
        }

        .hth-btn {
            display: inline-block;
            font-size: 1rem;
            font-weight: 400;
            padding: 12px 32px;
            border-radius: var(--hth-btn-radius);
            border: 2px solid transparent;
            cursor: pointer;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            font-family: var(--hth-font-sans);
            text-align: center;
            line-height: 1.5;
        }

        .hth-btn-primary {
            background: var(--hth-secondary);
            color: var(--hth-white);
            border-color: var(--hth-secondary);
        }

        .hth-btn-primary:hover {
            background: #A08B6E;
            border-color: #A08B6E;
            color: var(--hth-white);
            box-shadow: 0 4px 16px rgba(140,122,91,0.25);
        }

        .hth-btn-primary:active {
            background: #6E5F46;
            border-color: #6E5F46;
        }

        .hth-btn-outline {
            background: transparent;
            color: var(--hth-secondary);
            border-color: var(--hth-secondary);
        }

        .hth-btn-outline:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }

        .hth-btn-outline:active {
            background: #6E5F46;
            border-color: #6E5F46;
            color: var(--hth-white);
        }

        .hth-btn-white-outline {
            background: transparent;
            color: var(--hth-white);
            border-color: rgba(255,255,255,0.4);
        }

        .hth-btn-white-outline:hover {
            background: rgba(255,255,255,0.15);
            border-color: rgba(255,255,255,0.6);
        }

        /* ===== 页脚 ===== */
        .hth-footer {
            background: var(--hth-primary);
            padding: 48px 0 0;
            color: var(--hth-text-muted);
            font-size: 0.875rem;
        }

        .hth-footer-brand {
            margin-bottom: 16px;
        }

        .hth-footer-logo {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--hth-white);
            letter-spacing: 0.06em;
            display: block;
            margin-bottom: 12px;
        }

        .hth-footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: #8C8CA0;
            margin: 0;
        }

        .hth-footer-title {
            font-size: 1rem;
            font-weight: 500;
            color: var(--hth-white);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }

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

        .hth-footer-links li {
            margin-bottom: 8px;
        }

        .hth-footer-links a {
            color: #8C8CA0;
            transition: color 0.25s ease;
        }

        .hth-footer-links a:hover {
            color: var(--hth-white);
        }

        .hth-footer-social {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }

        .hth-footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #8C8CA0;
            font-size: 1.1rem;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .hth-footer-social a:hover {
            background: var(--hth-secondary);
            color: var(--hth-white);
        }

        .hth-footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 16px 0;
            margin-top: 32px;
            font-size: 0.8rem;
            color: #6E6E8A;
            text-align: center;
        }

        /* ===== 面包屑 ===== */
        .hth-breadcrumb {
            padding: 16px 0;
            font-size: 0.8rem;
            color: var(--hth-text-muted);
        }

        .hth-breadcrumb a {
            color: var(--hth-text-muted);
        }

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

        .hth-breadcrumb .sep {
            color: #CCC;
            margin: 0 8px;
        }

        .hth-breadcrumb .current {
            color: var(--hth-text-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            body {
                padding-left: 0;
                padding-top: 56px;
            }

            .hth-nav {
                display: none;
            }

            .hth-mobile-header {
                display: flex;
            }

            .hth-category-hero {
                padding: 60px 0 40px;
            }

            .hth-category-hero h1 {
                font-size: 2rem;
            }

            .hth-category-hero p {
                font-size: 1rem;
            }
        }

        @media (max-width: 768px) {
            .hth-category-hero h1 {
                font-size: 1.75rem;
            }

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

            .hth-section-title {
                font-size: 1.5rem;
            }

            .hth-section-sub {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }

            .hth-features {
                padding: 40px 0;
            }

            .hth-feature-item {
                padding: 24px 16px;
            }

            .hth-cta-block {
                padding: 48px 0;
            }

            .hth-cta-block h2 {
                font-size: 1.5rem;
            }

            .hth-footer {
                padding: 32px 0 0;
            }

            .hth-footer .col-md-6 {
                margin-bottom: 24px;
            }

            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 576px) {
            .hth-category-hero {
                padding: 40px 0 32px;
            }

            .hth-category-hero h1 {
                font-size: 1.5rem;
            }

            .hth-section {
                padding: 32px 0;
            }

            .hth-section-title {
                font-size: 1.25rem;
            }

            .hth-card-body {
                padding: 16px;
            }

            .hth-card-body h3 {
                font-size: 1rem;
            }

            .hth-cta-block {
                padding: 40px 0;
            }

            .hth-cta-block h2 {
                font-size: 1.25rem;
            }

            .hth-btn {
                padding: 10px 24px;
                font-size: 0.9rem;
            }

            .hth-mobile-drawer {
                width: 260px;
            }
        }

        /* 图片加载失败占位 */
        .hth-img-placeholder {
            background: var(--hth-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--hth-text-muted);
            font-size: 2rem;
            min-height: 120px;
        }

        /* 滚动条隐藏 */
        .hth-scroll-wrap::-webkit-scrollbar {
            display: none;
        }
        .hth-scroll-wrap {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        /* 辅助 */
        .text-secondary-custom {
            color: var(--hth-secondary);
        }
        .bg-secondary-custom {
            background: var(--hth-secondary);
        }