/* roulang page: index */
:root {
  --bi-gold: #B98A4E;
  --bi-gold-dark: #8A6131;
  --bi-gold-light: #E7D6BC;
  --bi-teal: #1C5A68;
  --bi-teal-light: #DCEAE9;
  --bi-bg: #F6F3ED;
  --bi-card: #FFFFFF;
  --bi-text: #2B2B28;
  --bi-body: #4E4A45;
  --bi-muted: #8E897F;
  --bi-success: #4E7E5A;
  --bi-dark: #1F2F36;
  --bi-gradient: linear-gradient(135deg, #C9A05C 0%, #1C5A68 100%);
  --bi-r-lg: 20px;
  --bi-r-md: 16px;
  --bi-r-sm: 12px;
  --bi-shadow: 0 6px 20px rgba(138, 97, 49, 0.10);
  --bi-shadow-hover: 0 14px 40px rgba(28, 90, 104, 0.18);
  --bi-sidebar-w: 230px;
  --bi-font-title: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --bi-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: hidden; }
body { font-family: var(--bi-font-body); background-color: var(--bi-bg); color: var(--bi-body); line-height: 1.8; font-size: 16px; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; transition: color .3s; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }
h1, h2, h3, h4, h5, h6 { font-family: var(--bi-font-title); color: var(--bi-text); line-height: 1.35; font-weight: 600; }
p { line-height: 1.8; }
:focus-visible { outline: 3px solid rgba(185, 138, 78, 0.4); outline-offset: 2px; }

/* ===== Sidebar ===== */
.sidebar { position: fixed; top: 0; left: 0; width: var(--bi-sidebar-w); height: 100vh; background: #F0EBE1; border-right: 1px solid #E2D9CA; z-index: 1040; display: flex; flex-direction: column; }
.sidebar-brand { height: 72px; display: flex; align-items: center; gap: 10px; padding: 0 16px; border-bottom: 1px solid #E2D9CA; flex-shrink: 0; }
.sidebar-brand svg { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-cn { font-family: var(--bi-font-title); font-size: 20px; font-weight: 700; color: var(--bi-text); letter-spacing: 2px; }
.brand-en { font-size: 10px; color: var(--bi-muted); letter-spacing: 1.2px; text-transform: uppercase; }
.sidebar-nav { flex: 1; padding: 16px 0; display: flex; flex-direction: column; gap: 4px; }
.sidebar-nav-item { display: flex; align-items: center; gap: 12px; height: 52px; padding: 0 20px; color: var(--bi-body); font-size: 15px; font-weight: 500; margin: 0 0; border-radius: 0; transition: background .3s, color .3s; }
.sidebar-nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-nav-item:hover { background: var(--bi-gold-light); color: var(--bi-gold-dark); }
.sidebar-nav-item.active { background: var(--bi-teal); color: #fff; border-radius: 999px; margin: 0 12px; padding-left: 20px; padding-right: 20px; box-shadow: 0 4px 14px rgba(28, 90, 104, 0.25); }
.sidebar-bottom { padding: 16px; border-top: 1px solid #E2D9CA; }
.sidebar-contact { background: var(--bi-gold-light); border-radius: var(--bi-r-md); padding: 16px; text-align: center; margin-bottom: 12px; }
.sidebar-contact .phone-line { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--bi-gold-dark); margin-bottom: 8px; }
.sidebar-contact .phone-line svg { width: 16px; height: 16px; }
.sidebar-qr { background: #fff; border-radius: 8px; padding: 8px; width: 84px; height: 84px; margin: 0 auto; display: flex; align-items: center; justify-content: center; border: 1px solid #D8CFC0; }
.sidebar-qr svg { width: 100%; height: 100%; }
.sidebar .btn-custom { width: 100%; }

/* ===== Mobile Header ===== */
.mobile-header { display: none; position: sticky; top: 0; z-index: 1050; height: 64px; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(8px); border-bottom: 1px solid #EAE3D6; }
.mobile-header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0 16px; height: 64px; }
.mobile-logo { display: flex; align-items: center; gap: 8px; }
.mobile-logo svg { width: 36px; height: 36px; }
.mobile-logo span { font-family: var(--bi-font-title); font-size: 20px; font-weight: 700; color: var(--bi-text); }
.mobile-toggle { background: none; border: none; width: 40px; height: 40px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px; cursor: pointer; padding: 0; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--bi-text); border-radius: 2px; transition: all .3s; }
.mobile-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.mobile-menu { display: none; background: var(--bi-bg); border-bottom: 1px solid #E2D9CA; padding: 12px 16px 20px; }
.mobile-menu.open { display: block; }
.mobile-menu-item { display: flex; align-items: center; height: 44px; font-size: 16px; color: var(--bi-body); padding: 0 8px; border-radius: 10px; transition: background .3s; }
.mobile-menu-item:hover { background: var(--bi-gold-light); }
.mobile-menu-item.active { background: var(--bi-teal); color: #fff; border-radius: 999px; padding: 0 20px; }
.mobile-menu-btn { width: 100%; margin-top: 12px; }

/* ===== Main Content ===== */
.main-content { margin-left: var(--bi-sidebar-w); min-height: 100vh; }
.main-content-inner { max-width: 1200px; padding: 0 32px; }

/* ===== Hero ===== */
.hero { position: relative; height: 520px; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; display: flex; align-items: center; border-radius: 0 0 0 0; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(28, 90, 104, 0.80) 0%, rgba(201, 160, 92, 0.35) 100%); }
.hero-content { position: relative; z-index: 2; padding-left: 48px; max-width: 700px; padding-top: 40px; padding-bottom: 40px; }
.hero h1 { font-size: 40px; color: #fff; margin-bottom: 14px; letter-spacing: 1px; line-height: 1.3; }
.hero h1 .highlight { background: linear-gradient(transparent 60%, rgba(231, 214, 188, 0.65) 60%); }
.hero-sub { font-size: 17px; color: rgba(255, 255, 255, 0.92); line-height: 1.8; margin-bottom: 28px; max-width: 560px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.btn-custom { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 28px; border-radius: var(--bi-r-sm); font-size: 15px; font-weight: 600; cursor: pointer; border: none; transition: all .3s ease; letter-spacing: 1px; }
.btn-custom:active { transform: scale(0.98); }
.btn-primary-custom { background: var(--bi-gold); color: #fff; box-shadow: 0 4px 16px rgba(185, 138, 78, 0.3); }
.btn-primary-custom:hover { background: var(--bi-gold-dark); color: #fff; box-shadow: 0 8px 24px rgba(138, 97, 49, 0.35); }
.btn-outline-custom { background: transparent; color: var(--bi-gold-dark); border: 1.5px solid var(--bi-gold); }
.btn-outline-custom:hover { background: var(--bi-gold-light); color: var(--bi-gold-dark); }
.btn-white-custom { background: #fff; color: var(--bi-teal); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15); }
.btn-white-custom:hover { background: var(--bi-gold-light); color: var(--bi-gold-dark); }
.btn-outline-white { background: transparent; color: #fff; border: 1.5px solid #fff; }
.btn-outline-white:hover { background: rgba(255, 255, 255, 0.15); color: #fff; }
.btn-teal-custom { background: var(--bi-teal); color: #fff; box-shadow: 0 4px 16px rgba(28, 90, 104, 0.3); }
.btn-teal-custom:hover { background: #154650; color: #fff; }
.hero-badges { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-badge { background: rgba(255, 255, 255, 0.15); border: 1px solid var(--bi-gold); border-radius: 999px; padding: 8px 18px; font-size: 13px; color: #fff; backdrop-filter: blur(4px); display: flex; align-items: center; gap: 4px; }
.hero-badge b { font-size: 16px; font-weight: 700; }

/* ===== Section ===== */
.section { padding: 80px 0; }
.section-header { margin-bottom: 40px; }
.section-header .section-kicker { font-size: 13px; text-transform: uppercase; letter-spacing: 3px; color: var(--bi-gold); font-weight: 600; margin-bottom: 6px; }
.section-header h2 { font-size: 30px; margin-bottom: 8px; }
.section-header p { color: var(--bi-muted); font-size: 15px; margin: 0; }

/* ===== Advantage ===== */
.advantage-card { background: var(--bi-card); border-radius: var(--bi-r-lg); padding: 32px 28px; height: 100%; box-shadow: var(--bi-shadow); transition: all .4s; border: 1px solid #F1EBE0; }
.advantage-card:hover { box-shadow: var(--bi-shadow-hover); transform: translateY(-4px); }
.advantage-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--bi-teal-light); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.advantage-icon svg { width: 26px; height: 26px; }
.advantage-card h3 { font-size: 19px; margin-bottom: 10px; }
.advantage-card p { font-size: 14px; color: var(--bi-body); margin: 0; line-height: 1.7; }

/* ===== Directory ===== */
.directory-card { background: var(--bi-card); border-radius: var(--bi-r-lg); padding: 28px; height: 100%; box-shadow: var(--bi-shadow); transition: all .4s; border: 1px solid #F1EBE0; display: flex; flex-direction: column; }
.directory-card:hover { box-shadow: var(--bi-shadow-hover); transform: translateY(-4px); }
.directory-num { font-family: var(--bi-font-title); font-size: 40px; font-weight: 400; color: var(--bi-gold); line-height: 1; margin-bottom: 18px; }
.directory-card h3 { font-size: 22px; margin-bottom: 8px; }
.directory-card p { font-size: 14px; color: var(--bi-body); margin-bottom: 16px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.directory-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--bi-gold-dark); transition: all .3s; }
.directory-link svg { width: 18px; height: 18px; transition: transform .3s; }
.directory-link:hover { color: var(--bi-teal); }
.directory-link:hover svg { transform: translateX(4px); }

/* ===== Featured ===== */
.featured-card { background: var(--bi-card); border-radius: var(--bi-r-lg); overflow: hidden; box-shadow: var(--bi-shadow); transition: all .4s; height: 100%; display: flex; flex-direction: column; border: 1px solid #F1EBE0; }
.featured-card:hover { box-shadow: var(--bi-shadow-hover); transform: translateY(-6px); }
.featured-img { position: relative; height: 200px; overflow: hidden; background: var(--bi-gold-light); }
.featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.featured-card:hover .featured-img img { transform: scale(1.03); }
.featured-img .featured-tag { position: absolute; left: 12px; bottom: 12px; background: var(--bi-teal); color: #fff; border-radius: 999px; padding: 4px 14px; font-size: 12px; font-weight: 500; letter-spacing: 0.5px; }
.featured-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.featured-body h3 { font-size: 20px; margin-bottom: 8px; transition: color .3s; }
.featured-card:hover .featured-body h3 { color: var(--bi-gold-dark); }
.featured-body .featured-desc { font-size: 14px; color: var(--bi-body); margin-bottom: 16px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.featured-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.meta-badge { background: var(--bi-teal-light); color: var(--bi-teal); font-size: 13px; font-weight: 600; border-radius: 999px; padding: 4px 12px; display: inline-flex; align-items: center; gap: 4px; }
.featured-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; border-top: 1px solid #F1EBE0; }
.featured-price { font-size: 15px; font-weight: 700; color: var(--bi-gold-dark); }
.featured-price small { font-size: 12px; font-weight: 400; color: var(--bi-muted); }
.featured-link { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; color: var(--bi-teal); transition: all .3s; }
.featured-link svg { width: 16px; height: 16px; transition: transform .3s; }
.featured-link:hover { color: var(--bi-gold-dark); }
.featured-link:hover svg { transform: translateX(3px); }

/* ===== Related ===== */
.related-slider { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; scrollbar-width: thin; scrollbar-color: var(--bi-gold-light) transparent; }
.related-slider::-webkit-scrollbar { height: 6px; }
.related-slider::-webkit-scrollbar-thumb { background: var(--bi-gold-light); border-radius: 999px; }
.related-card { flex-shrink: 0; width: calc(33.333% - 14px); background: var(--bi-card); border-radius: var(--bi-r-md); box-shadow: var(--bi-shadow); transition: all .4s; display: flex; align-items: center; gap: 14px; padding: 14px; scroll-snap-align: start; cursor: pointer; border: 1px solid #F1EBE0; }
.related-card:hover { box-shadow: var(--bi-shadow-hover); transform: translateY(-3px); }
.related-thumb { width: 96px; height: 84px; border-radius: 12px; background: var(--bi-gold-light); overflow: hidden; flex-shrink: 0; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-info h4 { font-size: 16px; margin-bottom: 4px; line-height: 1.3; }
.related-info p { font-size: 13px; color: var(--bi-muted); margin: 0; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== News ===== */
.news-list { background: var(--bi-card); border-radius: var(--bi-r-lg); box-shadow: var(--bi-shadow); padding: 24px 28px; border: 1px solid #F1EBE0; }
.news-row { display: flex; align-items: center; gap: 16px; min-height: 72px; padding: 8px 0; border-bottom: 1px solid #EAE3D6; }
.news-row:last-child { border-bottom: none; }
.news-date { width: 100px; flex-shrink: 0; font-size: 14px; color: var(--bi-muted); }
.news-title { flex: 1; font-size: 18px; color: var(--bi-text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: color .3s; text-decoration: none; }
.news-title:hover { color: var(--bi-teal); }
.news-cat { background: var(--bi-teal-light); color: var(--bi-teal); font-size: 12px; font-weight: 600; border-radius: 999px; padding: 4px 12px; flex-shrink: 0; }
.news-arrow { color: var(--bi-muted); flex-shrink: 0; transition: all .3s; width: 20px; height: 20px; }
.news-row:hover .news-arrow { color: var(--bi-teal); transform: translateX(3px); }
.news-empty { height: 240px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1.5px dashed #C9C0B2; border-radius: var(--bi-r-lg); background: rgba(255, 255, 255, 0.5); text-align: center; padding: 20px; }
.news-empty svg { width: 48px; height: 48px; color: #C9C0B2; margin-bottom: 12px; }
.news-empty p { color: var(--bi-muted); font-size: 15px; margin: 0; }

/* ===== CTA Banner ===== */
.cta-banner { border-radius: 24px; background: linear-gradient(135deg, #C9A05C 0%, #1C5A68 100%); padding: 56px 48px; position: relative; overflow: hidden; text-align: center; }
.cta-banner::before { content: ''; position: absolute; top: -40px; right: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255, 255, 255, 0.08); }
.cta-banner::after { content: ''; position: absolute; bottom: -60px; left: -30px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255, 255, 255, 0.05); }
.cta-banner h2 { font-size: 30px; color: #fff; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-banner p { color: rgba(255, 255, 255, 0.9); font-size: 16px; margin-bottom: 28px; position: relative; z-index: 1; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: var(--bi-dark); color: #C7D0CE; padding: 60px 0 0; margin-left: var(--bi-sidebar-w); }
.footer-grid { max-width: 1200px; padding: 0 32px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand-name { font-family: var(--bi-font-title); font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.footer-brand-desc { font-size: 14px; line-height: 1.7; color: #9AA6A8; }
.footer-col h4 { font-size: 16px; color: #fff; margin-bottom: 16px; font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; font-size: 14px; }
.footer-col a { color: #9AA6A8; transition: color .3s; }
.footer-col a:hover { color: var(--bi-gold-light); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; text-align: center; font-size: 13px; color: #849296; max-width: 1200px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.footer-bottom a { color: #9AA6A8; }
.footer-bottom a:hover { color: #fff; }

/* ===== Back to Top ===== */
.back-top { position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px; border-radius: 50%; background: var(--bi-gold); color: #fff; border: none; box-shadow: 0 6px 20px rgba(185, 138, 78, 0.4); display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transition: all .4s; z-index: 999; }
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--bi-gold-dark); transform: translateY(-3px); }
.back-top svg { width: 20px; height: 20px; }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; }
  .site-footer { margin-left: 0; }
  .mobile-header { display: block; }
  .main-content-inner { padding: 0 20px; }
  .hero { height: 420px; }
  .hero-content { padding-left: 24px; padding-right: 24px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .section { padding: 48px 0; }
  .related-card { width: 80vw; }
  .related-card:first-child { margin-left: 4px; }
  .footer-grid { grid-template-columns: 1fr 1fr; padding: 40px 20px 20px; gap: 30px; }
  .footer-bottom { padding-left: 20px; padding-right: 20px; }
}
@media (max-width: 767.98px) {
  .hero-buttons .btn-custom { width: 100%; }
  .hero-badges { flex-direction: column; align-items: flex-start; }
  .hero-badge { width: auto; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 24px; }
  .news-row { flex-wrap: wrap; gap: 6px 12px; }
  .news-date { width: auto; }
  .news-title { flex-basis: 100%; order: 3; white-space: normal; }
  .news-cat { order: 2; }
  .footer-grid { grid-template-columns: 1fr; }
  .back-top { bottom: 16px; right: 16px; width: 40px; height: 40px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #B98A4E;
            --primary-dark: #8A6131;
            --primary-light: #E7D6BC;
            --accent: #1C5A68;
            --accent-light: #DCEAE9;
            --bg: #F6F3ED;
            --card-bg: #FFFFFF;
            --text-dark: #2B2B28;
            --text-body: #4E4A45;
            --text-muted: #8E897F;
            --border: #E2D9CA;
            --dark-bg: #1F2F36;
            --success: #4E7E5A;
            --gradient: linear-gradient(135deg, #C9A05C 0%, #1C5A68 100%);
            --radius-card: 20px;
            --radius-small: 16px;
            --radius-pill: 999px;
            --shadow: 0 6px 20px rgba(138, 97, 49, 0.10);
            --shadow-hover: 0 14px 40px rgba(28, 90, 104, 0.18);
            --sidebar-width: 230px;
            --transition: all 0.3s ease;
            --font-title: "Noto Serif SC", "Songti SC", "SimSun", serif;
            --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        /* ===== 基础 Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-title);
            color: var(--text-dark);
            line-height: 1.35;
            margin-top: 0;
            font-weight: 700;
        }

        p {
            margin-top: 0;
        }

        .container-xl {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== 左侧竖向导航 ===== */
        .sidebar-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #F0EBE1;
            border-right: 1px solid #E2D9CA;
            display: flex;
            flex-direction: column;
            z-index: 1040;
        }

        .sidebar-brand {
            height: 72px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 20px;
            border-bottom: 1px solid var(--border);
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }

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

        .brand-cn {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 1px;
        }

        .brand-en {
            font-size: 9px;
            letter-spacing: 1.6px;
            color: var(--text-muted);
            text-transform: uppercase;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 20px 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }

        .sidebar-nav-item {
            height: 52px;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-body);
            font-size: 15px;
            font-weight: 500;
            border-radius: 12px;
            margin: 0 12px;
            transition: var(--transition);
        }

        .sidebar-nav-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        .sidebar-nav-item:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .sidebar-nav-item:hover svg {
            opacity: 1;
        }

        .sidebar-nav-item.active {
            background: var(--accent);
            color: #FFFFFF;
            border-radius: 999px;
            box-shadow: 0 4px 16px rgba(28, 90, 104, 0.22);
        }

        .sidebar-nav-item.active svg {
            opacity: 1;
        }

        .sidebar-contact {
            padding: 16px 12px 24px;
            flex-shrink: 0;
        }

        .contact-card {
            background: var(--primary-light);
            border-radius: 16px;
            padding: 18px 16px;
            text-align: center;
        }

        .contact-phone {
            font-size: 13px;
            color: var(--text-body);
            margin-bottom: 10px;
        }

        .contact-phone strong {
            display: block;
            font-size: 18px;
            color: var(--primary-dark);
            font-family: var(--font-title);
            margin-top: 2px;
        }

        .contact-phone svg {
            width: 18px;
            height: 18px;
            vertical-align: -3px;
            margin-right: 4px;
        }

        .contact-qr {
            margin-bottom: 12px;
        }

        .qr-placeholder {
            width: 72px;
            height: 72px;
            background: #FFFFFF;
            border-radius: 12px;
            margin: 0 auto 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #D8CFC0;
            color: var(--text-muted);
        }

        .qr-placeholder svg {
            width: 36px;
            height: 36px;
        }

        .contact-qr span {
            font-size: 12px;
            color: var(--text-muted);
        }

        .btn-plan {
            display: inline-block;
            width: 100%;
            height: 44px;
            line-height: 44px;
            text-align: center;
            background: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-plan:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(138, 97, 49, 0.28);
            transform: translateY(-2px);
            color: #FFFFFF;
        }

        .btn-plan:active {
            transform: scale(0.98);
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--bg);
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 64px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .mobile-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            padding: 0 20px;
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .mobile-brand svg {
            width: 28px;
            height: 28px;
        }

        .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            background: transparent;
            border: none;
            border-radius: 8px;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition);
        }

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

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

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

        .mobile-menu {
            display: none;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 20px 20px;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu-item {
            display: block;
            height: 44px;
            line-height: 44px;
            padding: 0 14px;
            color: var(--text-body);
            font-size: 15px;
            border-radius: 10px;
            transition: var(--transition);
        }

        .mobile-menu-item:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .mobile-menu-item.active {
            background: var(--accent);
            color: #FFFFFF;
        }

        .mobile-plan {
            margin-top: 12px;
            display: block;
            text-align: center;
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--accent);
        }

        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(120deg, rgba(28, 90, 104, 0.82) 0%, rgba(201, 160, 92, 0.32) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 48px;
            max-width: 1200px;
            width: 100%;
        }

        .hero-crumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 16px;
        }

        .hero-crumb a {
            color: #FFFFFF;
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
        }

        .hero-crumb span {
            margin: 0 8px;
            opacity: 0.6;
        }

        .category-hero h1 {
            color: #FFFFFF;
            font-size: 42px;
            font-family: var(--font-title);
            margin: 0 0 12px;
            letter-spacing: 2px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, 0.92);
            font-size: 17px;
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .btn-primary-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: 12px;
            background: #FFFFFF;
            color: var(--accent);
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }

        .btn-primary-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
            color: var(--primary-dark);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: 12px;
            background: transparent;
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid rgba(255, 255, 255, 0.75);
            transition: var(--transition);
        }

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

        .hero-stats {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .stat-badge {
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(4px);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            color: #FFFFFF;
        }

        .stat-badge strong {
            font-size: 18px;
            font-family: var(--font-title);
            margin-right: 2px;
        }

        /* ===== 区块通用 ===== */
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 999px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-head h2 {
            font-size: 30px;
            margin: 0 0 12px;
        }

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

        /* ===== 分类简介大卡 ===== */
        .intro-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
        }

        .intro-card .intro-image {
            width: 100%;
            height: 240px;
            overflow: hidden;
        }

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

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

        .intro-card .intro-text {
            padding: 36px 40px;
        }

        .intro-card .intro-text h2 {
            font-size: 28px;
            margin-bottom: 16px;
        }

        .intro-card .intro-text p {
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .intro-points {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .intro-points .point {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            color: var(--text-body);
            border: 1px solid var(--border);
        }

        .intro-points .point svg {
            width: 16px;
            height: 16px;
            color: var(--success);
        }

        @media (min-width: 768px) {
            .intro-card {
                flex-direction: row;
                align-items: stretch;
            }
            .intro-card .intro-image {
                width: 46%;
                height: auto;
                max-height: 380px;
            }
            .intro-card .intro-text {
                width: 54%;
                display: flex;
                flex-direction: column;
                justify-content: center;
            }
        }

        /* ===== 精选路线列表 ===== */
        .route-list-section {
            background: linear-gradient(0deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)), var(--bg);
        }

        .route-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 960px;
            margin: 0 auto;
        }

        .route-item {
            display: flex;
            flex-direction: column;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            gap: 14px;
        }

        .route-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .route-num {
            font-family: var(--font-title);
            font-size: 36px;
            color: var(--primary);
            font-weight: 700;
            line-height: 1;
            flex-shrink: 0;
        }

        .route-info h3 {
            font-size: 22px;
            margin: 0 0 4px;
            color: var(--text-dark);
        }

        .route-info .route-meta {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .route-info p {
            font-size: 15px;
            color: var(--text-body);
            margin: 0;
            line-height: 1.7;
        }

        .route-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .route-tags .tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
        }

        .route-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }

        .route-link svg {
            width: 16px;
            height: 16px;
            transition: transform 0.3s ease;
        }

        .route-item:hover .route-link svg {
            transform: translateX(4px);
        }

        @media (min-width: 992px) {
            .route-item {
                flex-direction: row;
                align-items: center;
                gap: 24px;
                padding: 30px 36px;
            }
            .route-num {
                width: 60px;
            }
            .route-info {
                flex: 1;
            }
            .route-tags {
                width: 180px;
                justify-content: flex-end;
            }
        }

        /* ===== 服务特色 ===== */
        .feature-section {
            background: var(--card-bg);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            max-width: 960px;
            margin: 0 auto;
        }

        .feature-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: #FFFFFF;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: #FFFFFF;
        }

        .feature-icon svg {
            width: 26px;
            height: 26px;
        }

        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1200px) {
            .feature-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* ===== 行程规划流程 ===== */
        .steps-section {
            background: var(--bg);
        }

        .steps-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            max-width: 960px;
            margin: 0 auto;
            counter-reset: step;
        }

        .step-card {
            position: relative;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .step-card::before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            font-family: var(--font-title);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary-light);
            line-height: 1;
            position: absolute;
            top: 20px;
            right: 24px;
        }

        .step-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-hover);
        }

        .step-card h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .steps-wrap {
                grid-template-columns: repeat(4, 1fr);
            }
        }

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

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

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-small) !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }

        .accordion-button {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            background: var(--card-bg);
            line-height: 1.5;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: #F9F6F0;
            color: var(--primary-dark);
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .accordion-button::after {
            background-image: none;
            content: '+';
            font-size: 26px;
            font-weight: 300;
            color: var(--primary);
            width: auto;
            height: auto;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.35s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--primary-dark);
        }

        .accordion-body {
            padding: 4px 28px 24px;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA + 联系表单 ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(135deg, rgba(31, 47, 54, 0.92) 0%, rgba(28, 90, 104, 0.80) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
            padding: 0 24px;
        }

        .cta-inner h2 {
            color: #FFFFFF;
            font-size: 32px;
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 16px;
            margin-bottom: 36px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-card);
            padding: 36px;
            text-align: left;
        }

        .cta-form .form-label {
            color: rgba(255, 255, 255, 0.92);
            font-size: 14px;
            margin-bottom: 6px;
        }

        .cta-form .form-control {
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            height: 48px;
            border-radius: 12px;
            padding: 0 16px;
            font-size: 15px;
        }

        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(231, 214, 188, 0.25);
            color: #FFFFFF;
        }

        .cta-form textarea.form-control {
            height: auto;
            padding: 12px 16px;
            resize: vertical;
        }

        .btn-cta-submit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            height: 50px;
            border: none;
            border-radius: 12px;
            background: var(--gradient);
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-cta-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
            color: #FFFFFF;
        }

        @media (max-width: 575px) {
            .cta-section {
                padding: 60px 0;
            }
        }

        /* ===== 相邻分类互链区 ===== */
        .category-nav-section {
            background: var(--bg);
            padding: 40px 0;
        }

        .category-nav-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .category-nav-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 52px;
            padding: 0 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--primary);
            color: var(--primary-dark);
            background: #FFFFFF;
            transition: var(--transition);
        }

        .category-nav-btn:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        .category-nav-btn .arrow-left {
            transition: transform 0.3s ease;
        }

        .category-nav-btn:hover .arrow-left {
            transform: translateX(-4px);
        }

        .category-nav-btn .arrow-down {
            transition: transform 0.3s ease;
        }

        .category-nav-btn:hover .arrow-down {
            transform: translateY(4px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: #C7D0CE;
            padding: 60px 0 30px;
            margin-top: auto;
        }

        .site-footer .container-xl {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand-name {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #A8B4B1;
            max-width: 280px;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 16px;
            color: #FFFFFF;
            margin-bottom: 16px;
            font-family: var(--font-body);
            font-weight: 600;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: #A8B4B1;
        }

        .footer-col a {
            color: #A8B4B1;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #93A19E;
        }

        .footer-bottom a {
            color: #93A19E;
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (min-width: 576px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
            }
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .sidebar-wrapper {
                display: none;
            }

            .mobile-header {
                display: block;
            }

            .main-wrapper {
                margin-left: 0;
            }

            .category-hero {
                min-height: 380px;
            }

            .category-hero .hero-content {
                padding: 40px 24px;
            }

            .category-hero h1 {
                font-size: 32px;
            }

            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }

            .container-xl {
                padding: 0 20px;
            }

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

            .intro-card .intro-text {
                padding: 28px 24px;
            }
        }

        @media (max-width: 575.98px) {
            .category-hero {
                min-height: 340px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-actions .btn-primary-light,
            .hero-actions .btn-outline-white {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                flex-direction: column;
                align-items: flex-start;
            }

            .stat-badge {
                width: 100%;
                justify-content: center;
                text-align: center;
            }

            .route-item {
                padding: 24px 20px;
            }

            .route-info p {
                font-size: 14px;
            }

            .feature-card {
                padding: 24px 20px;
            }

            .step-card {
                padding: 28px 20px;
            }

            .cta-form {
                padding: 24px 16px;
            }

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

        @media (max-width: 380px) {
            .category-hero h1 {
                font-size: 24px;
            }
        }

        /* ===== 辅助与动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

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

        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: article */
:root {
  --primary: #B98A4E;
  --primary-dark: #8A6131;
  --primary-light: #E7D6BC;
  --secondary: #1C5A68;
  --secondary-light: #DCEAE9;
  --bg: #F6F3ED;
  --card: #FFFFFF;
  --text: #2B2B28;
  --text-body: #4E4A45;
  --text-muted: #8E897F;
  --success: #4E7E5A;
  --dark: #1F2F36;
  --border: #E2D9CA;
  --radius: 20px;
  --radius-sm: 16px;
  --radius-pill: 999px;
  --shadow: 0 6px 20px rgba(138, 97, 49, 0.10);
  --shadow-hover: 0 14px 40px rgba(28, 90, 104, 0.18);
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: var(--secondary); transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }

.btn {
  height: 48px; padding: 0 28px; border-radius: 12px;
  font-weight: 600; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: all .25s ease; border: none; cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(138,97,49,.32); }
.btn-primary:active { transform: scale(.98); }
.btn-outline-primary { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary-light); border-color: var(--primary-dark); color: var(--primary-dark); }
.btn-outline-secondary { background: transparent; border: 1.5px solid var(--secondary); color: var(--secondary); }
.btn-outline-secondary:hover { background: var(--secondary-light); border-color: var(--secondary); color: var(--secondary); }
.btn:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }

.site-sidebar {
  position: fixed; top: 0; left: 0; width: 230px; height: 100vh;
  background: #F0EBE1; border-right: 1px solid var(--border);
  flex-direction: column; z-index: 1040;
}
.sidebar-brand {
  height: 72px; padding: 0 20px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; }
.sidebar-brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-cn { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: 1px; }
.brand-en { font-size: 10px; color: var(--text-muted); letter-spacing: .8px; text-transform: uppercase; }
.sidebar-nav { padding: 20px 12px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.sidebar-nav-item {
  display: flex; align-items: center; gap: 12px; height: 52px; padding: 0 16px;
  color: var(--text-body); border-radius: var(--radius-pill);
  font-size: 15px; font-weight: 500; transition: all .25s ease;
}
.sidebar-nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-nav-item:hover { background: var(--primary-light); color: var(--text); }
.sidebar-nav-item.active { background: var(--secondary); color: #fff; box-shadow: 0 4px 14px rgba(28,90,104,.25); }
.sidebar-contact { padding: 16px; flex-shrink: 0; }
.contact-card { background: var(--primary-light); border-radius: var(--radius-sm); padding: 20px 16px; text-align: center; }
.contact-card svg { width: 24px; height: 24px; margin-bottom: 8px; }
.contact-label { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.contact-phone { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 2px; white-space: nowrap; }
.contact-time { font-size: 12px; color: var(--text-muted); margin-bottom: 14px; }

.mobile-header {
  position: sticky; top: 0; left: 0; right: 0; height: 64px;
  background: rgba(255,255,255,.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; z-index: 1030;
}
.mobile-brand { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--text); }
.mobile-menu-toggle {
  width: 40px; height: 40px; border: none; background: transparent;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 5px; cursor: pointer; border-radius: 8px;
}
.mobile-menu-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s ease; }
.mobile-menu-toggle:hover { background: var(--primary-light); }
.mobile-menu-toggle:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }
.mobile-menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu-panel { display: none; }
.mobile-menu-panel.open {
  display: block; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
  background: var(--bg); z-index: 1020; padding: 24px 20px; overflow-y: auto;
}
.mobile-nav { display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.mobile-nav-item {
  display: flex; align-items: center; gap: 12px; height: 44px; padding: 0 16px;
  border-radius: 12px; color: var(--text-body); font-size: 15px; font-weight: 500;
  transition: background .2s ease;
}
.mobile-nav-item svg { width: 20px; height: 20px; }
.mobile-nav-item:hover { background: var(--primary-light); }
.mobile-nav-item.active { background: var(--secondary); color: #fff; }
.mobile-cta { width: 100%; }

.site-main { margin-left: 230px; min-height: 70vh; background: var(--bg); }
.container-xl { max-width: 1200px; padding-left: 32px; padding-right: 32px; }

.breadcrumb-nav { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-muted); margin-bottom: 24px; flex-wrap: wrap; }
.breadcrumb-nav a { color: var(--text-muted); }
.breadcrumb-nav a:hover { color: var(--primary-dark); }
.breadcrumb-nav .current { color: var(--text-body); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }
.breadcrumb-sep { color: #C9C0B2; }

.article-hero-img {
  border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9;
  box-shadow: var(--shadow); margin-bottom: 32px; background: var(--primary-light);
}
.article-hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.article-header { margin-bottom: 32px; }
.article-header h1 {
  font-family: var(--font-serif); font-size: 36px; font-weight: 700;
  color: var(--text); line-height: 1.3; margin-bottom: 20px; letter-spacing: .5px;
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 20px;
  background: #F0EBE1; border-radius: var(--radius-sm);
  padding: 14px 20px; align-items: center;
}
.meta-item { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-body); }
.meta-item svg { width: 16px; height: 16px; color: var(--primary); }
.meta-category {
  display: inline-flex; align-items: center;
  background: var(--secondary-light); color: var(--secondary);
  border-radius: var(--radius-pill); padding: 4px 14px;
  font-size: 13px; font-weight: 600;
}

.article-content {
  max-width: 760px; margin: 0 auto 48px;
  font-size: 16px; line-height: 1.8; color: var(--text-body);
}
.article-content p { margin-bottom: 28px; }
.article-content h2 {
  font-family: var(--font-serif); font-size: 28px; font-weight: 700;
  color: var(--text); margin: 48px 0 20px; line-height: 1.4;
}
.article-content h3 {
  font-family: var(--font-serif); font-size: 22px; font-weight: 600;
  color: var(--text); margin: 36px 0 16px; line-height: 1.4;
}
.article-content h4 { font-size: 18px; font-weight: 600; color: var(--text); margin: 28px 0 12px; }
.article-content a { color: var(--secondary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--primary-dark); }
.article-content blockquote {
  border-left: 4px solid var(--primary); background: #F9F6F0;
  padding: 20px 24px; margin: 28px 0; border-radius: 0 16px 16px 0;
  color: var(--text-body);
}
.article-content ul, .article-content ol { margin: 20px 0 28px; padding-left: 24px; }
.article-content li { margin-bottom: 10px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content th { background: #F0EBE1; font-weight: 600; color: var(--text); }
.article-content img { border-radius: var(--radius-sm); margin: 28px 0; max-width: 100%; height: auto; }
.article-content pre { background: var(--dark); color: #E5E7E6; border-radius: var(--radius-sm); padding: 20px 24px; overflow-x: auto; margin: 28px 0; }
.article-content code { background: var(--primary-light); color: var(--primary-dark); padding: 2px 8px; border-radius: 6px; font-size: 14px; }
.article-content pre code { background: transparent; color: inherit; padding: 0; }

.section-block { margin-top: 64px; }

.related-section .section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.related-section .section-heading h2 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--text); margin: 0; }
.section-link { font-size: 14px; font-weight: 600; color: var(--secondary); }
.section-link:hover { color: var(--primary-dark); }
.related-scroll { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
  display: flex; background: var(--card); border-radius: var(--radius-sm);
  overflow: hidden; box-shadow: var(--shadow); transition: all .3s ease;
  text-decoration: none; color: var(--text);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); color: var(--primary-dark); }
.related-thumb { width: 96px; min-height: 100px; flex-shrink: 0; background: var(--primary-light); }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.related-info { padding: 14px 16px; display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.related-info h3 { font-size: 16px; font-weight: 600; margin: 0; line-height: 1.4; }
.related-info p { font-size: 13px; color: var(--text-muted); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.article-back-actions { display: flex; gap: 16px; justify-content: center; margin-top: 48px; }

.article-faq .section-heading h2 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 24px; }
.article-faq .accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  margin-bottom: 16px; overflow: hidden; background: var(--card);
}
.article-faq .accordion-button {
  background: var(--card); color: var(--text); font-weight: 600;
  padding: 20px 24px; font-size: 16px; box-shadow: none; border: none;
}
.article-faq .accordion-button:focus { box-shadow: none; border-color: var(--primary); }
.article-faq .accordion-button:not(.collapsed) { background: #F9F6F0; color: var(--primary-dark); }
.article-faq .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B98A4E'%3e%3cpath d='M8 3v10M3 8h10' stroke='%23B98A4E' stroke-width='1.6' stroke-linecap='round'/%3e%3c/svg%3e");
  transition: transform .3s ease;
}
.article-faq .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%238A6131'%3e%3cpath d='M8 3v10M3 8h10' stroke='%238A6131' stroke-width='1.6' stroke-linecap='round'/%3e%3c/svg%3e");
}
.article-faq .accordion-body { color: var(--text-body); padding: 0 24px 20px; font-size: 15px; line-height: 1.7; }

.article-not-found {
  max-width: 640px; margin: 60px auto; text-align: center;
  background: var(--card); border: 1.5px dashed #C9C0B2;
  border-radius: var(--radius); padding: 64px 32px;
}
.article-not-found svg { width: 56px; height: 56px; color: #C9C0B2; margin-bottom: 16px; }
.article-not-found h2 { font-family: var(--font-serif); font-size: 24px; color: var(--text); margin-bottom: 12px; }
.article-not-found p { color: var(--text-muted); margin-bottom: 24px; }

.site-footer { margin-left: 230px; background: var(--dark); color: #C7D0CE; padding: 64px 32px 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: 1136px; margin: 0 auto 40px; }
.footer-brand-name { font-family: var(--font-serif); font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-brand-desc { font-size: 14px; line-height: 1.7; color: #9AA8A6; max-width: 320px; margin: 0; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; font-size: 14px; color: #9AA8A6; }
.footer-col a { color: #9AA8A6; text-decoration: none; transition: color .25s ease; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; text-align: center; font-size: 13px; color: #6F7E7C; max-width: 1136px; margin: 0 auto; }
.footer-bottom a { color: #6F7E7C; }
.footer-bottom a:hover { color: var(--primary-light); }

@media (max-width: 991.98px) {
  .site-sidebar { display: none !important; }
  .site-main { margin-left: 0; }
  .site-footer { margin-left: 0; }
  .container-xl { padding-left: 20px; padding-right: 20px; }
  .article-header h1 { font-size: 30px; }
}

@media (max-width: 767.98px) {
  .container-xl { padding-left: 16px; padding-right: 16px; }
  .article-header h1 { font-size: 26px; }
  .article-meta { gap: 12px; padding: 12px 16px; }
  .related-scroll { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 16px; padding-bottom: 8px; }
  .related-card { flex: 0 0 80vw; scroll-snap-align: start; }
  .article-back-actions { flex-direction: column; align-items: stretch; padding: 0 20px; }
  .article-content { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .article-faq .accordion-button { font-size: 15px; padding: 16px 20px; }
}