/* roulang page: index */
:root {
  --primary: #2E6B67;
  --primary-dark: #214A47;
  --primary-light: #E7EFED;
  --accent: #C9973F;
  --bg: #F5F4EF;
  --card-bg: #FFFFFF;
  --text-main: #1B2625;
  --text-secondary: #5D6B69;
  --text-muted: #8A9593;
  --border: #E3E0D8;
  --radius-sm: 8px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(20,40,38,0.06);
  --shadow-lg: 0 8px 24px rgba(20,40,38,0.10);
  --sidebar-width: 264px;
  --space-section: 80px;
  --space-section-mobile: 48px;
  --font-sans: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.75; color: var(--text-main); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container-wide { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; }
.section-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
.section-label::before { content: ""; width: 24px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-title { font-size: 28px; font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; margin-bottom: 16px; color: var(--text-main); }
.section-desc { font-size: 15px; color: var(--text-secondary); max-width: 640px; line-height: 1.75; margin-bottom: 32px; }

.site-shell { display: flex; min-height: 100vh; }

/* ==================== 左侧导航 ==================== */
.site-sidebar { width: var(--sidebar-width); background: var(--primary-dark); position: fixed; left: 0; top: 0; bottom: 0; z-index: 200; display: flex; flex-direction: column; padding: 0; overflow-y: auto; }
.sidebar-brand { padding: 36px 28px 24px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.brand-logo { display: flex; flex-direction: column; gap: 6px; }
.brand-mark { width: 44px; height: 44px; background: var(--accent); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; color: var(--primary-dark); margin-bottom: 10px; letter-spacing: -0.02em; }
.brand-text { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: 0.02em; line-height: 1.4; }
.brand-sub { font-size: 12px; color: rgba(255,255,255,0.55); letter-spacing: 0.04em; margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 24px 16px; display: flex; flex-direction: column; gap: 2px; }
.nav-link { display: flex; align-items: center; gap: 12px; padding: 13px 18px; border-radius: var(--radius-sm); color: rgba(255,255,255,0.75); font-size: 15px; font-weight: 500; position: relative; transition: all .2s ease; }
.nav-link i { width: 20px; text-align: center; font-size: 15px; color: rgba(255,255,255,0.5); transition: color .2s ease; }
.nav-link:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-link:hover i { color: var(--accent); }
.nav-link.active { background: rgba(255,255,255,0.08); color: #fff; font-weight: 600; }
.nav-link.active::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 24px; background: var(--accent); border-radius: 0 3px 3px 0; }
.nav-link.active i { color: var(--accent); }
.sidebar-footer { padding: 20px 28px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 12px; color: rgba(255,255,255,0.4); }

/* ==================== 移动端导航 ==================== */
.mobile-header { display: none; }
.mobile-menu-wrap { display: none; }

/* ==================== 主内容区 ==================== */
.main-content { flex: 1; margin-left: var(--sidebar-width); min-width: 0; }
.main-inner { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ==================== Hero ==================== */
.hero-section { position: relative; min-height: 540px; background: linear-gradient(to top, rgba(33,74,71,0.85) 0%, rgba(33,74,71,0.4) 55%, rgba(33,74,71,0.55) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; display: flex; align-items: center; padding: 80px 0; margin-bottom: 0; }
.hero-container { max-width: 1200px; margin: 0 auto; padding: 0 32px; width: 100%; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.14); backdrop-filter: blur(4px); padding: 6px 16px; border-radius: 999px; font-size: 13px; color: #fff; letter-spacing: .05em; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.2); }
.hero-badge i { color: var(--accent); font-size: 12px; }
.hero-title { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.25; letter-spacing: -0.01em; margin-bottom: 16px; font-family: var(--font-serif); }
.hero-subtitle { font-size: 17px; color: rgba(255,255,255,0.85); max-width: 560px; line-height: 1.7; margin-bottom: 32px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; cursor: pointer; border: none; transition: all .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible, .nav-link:focus-visible, .accordion-title:focus-visible, input:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(46,107,103,0.3); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(46,107,103,0.4); }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-accent { background: var(--accent); color: var(--primary-dark); box-shadow: 0 4px 14px rgba(201,151,63,0.3); }
.btn-accent:hover { background: #b8873a; }
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost:hover { background: var(--primary-light); }

/* ==================== 数据统计 ==================== */
.stats-section { background: var(--card-bg); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 40px 0; }
.stat-item { text-align: center; padding: 16px; }
.stat-icon { width: 52px; height: 52px; background: var(--primary-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 20px; color: var(--primary); }
.stat-value { font-size: 32px; font-weight: 800; color: var(--text-main); line-height: 1.2; letter-spacing: -0.02em; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ==================== 核心优势 ==================== */
.features-section { background: var(--bg); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--card-bg); border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow-sm); transition: all .25s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-icon { width: 56px; height: 56px; background: var(--primary-light); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary); margin-bottom: 20px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ==================== 服务分类入口 ==================== */
.category-section { background: var(--bg); }
.category-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.category-card { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--card-bg); box-shadow: var(--shadow-sm); transition: all .25s ease; }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.category-card .cat-img { height: 180px; overflow: hidden; position: relative; }
.category-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.category-card:hover .cat-img img { transform: scale(1.03); }
.category-card .cat-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(33,74,71,0.35), transparent 60%); }
.cat-num { position: absolute; top: 14px; right: 14px; background: var(--accent); color: var(--primary-dark); font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; z-index: 2; }
.cat-body { padding: 20px 22px 24px; }
.cat-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.cat-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }
.cat-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--primary); }
.cat-link i { transition: transform .2s ease; }
.cat-link:hover i { transform: translateX(4px); }

/* ==================== 最新信息 ==================== */
.news-section { background: var(--card-bg); }
.news-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item { padding: 20px 0; border-bottom: 1px solid var(--border); transition: background .2s ease; }
.news-item:last-child { border-bottom: none; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.news-category { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 999px; }
.news-date { font-size: 13px; color: var(--text-muted); }
.news-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; line-height: 1.5; }
.news-title a:hover { color: var(--primary); }
.news-summary { font-size: 14px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.news-empty i { font-size: 40px; margin-bottom: 16px; display: block; }
.news-empty p { font-size: 15px; }
.news-side { background: var(--primary-light); border-radius: var(--radius); padding: 28px; }
.news-side h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--text-main); display: flex; align-items: center; gap: 8px; }
.news-side h3 i { color: var(--accent); }
.news-tips { display: flex; flex-direction: column; gap: 14px; }
.news-tip { display: flex; gap: 12px; align-items: flex-start; padding: 12px; background: rgba(255,255,255,0.7); border-radius: var(--radius-sm); }
.news-tip i { color: var(--primary); font-size: 16px; margin-top: 2px; }
.news-tip span { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ==================== 服务流程 ==================== */
.process-section { background: var(--bg); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-step { text-align: center; padding: 32px 20px; background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow-sm); position: relative; transition: all .25s ease; }
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-num { width: 40px; height: 40px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; margin: 0 auto 16px; }
.step-icon { font-size: 24px; color: var(--accent); margin-bottom: 14px; }
.process-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ==================== 精选推荐 ==================== */
.recommend-section { background: var(--card-bg); }
.recommend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.recommend-card { border-radius: var(--radius); overflow: hidden; background: var(--card-bg); box-shadow: var(--shadow-sm); transition: all .25s ease; position: relative; }
.recommend-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.rec-img { height: 170px; overflow: hidden; position: relative; }
.rec-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.recommend-card:hover .rec-img img { transform: scale(1.03); }
.rec-badge { position: absolute; top: 12px; left: 12px; background: var(--accent); color: var(--primary-dark); font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; z-index: 2; }
.rec-body { padding: 18px 20px; }
.rec-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; line-height: 1.4; }
.rec-body p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ==================== FAQ ==================== */
.faq-section { background: var(--bg); }
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-accordion { background: transparent; }
.faq-accordion .accordion-item { background: var(--card-bg); border-radius: var(--radius); margin-bottom: 14px; box-shadow: var(--shadow-sm); overflow: hidden; transition: box-shadow .25s ease; }
.faq-accordion .accordion-item:hover { box-shadow: var(--shadow-lg); }
.faq-accordion .accordion-item.is-active { box-shadow: var(--shadow-lg); }
.faq-accordion .accordion-title { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--text-main); border: none; background: transparent; min-height: 48px; }
.faq-accordion .accordion-title:hover { background: var(--primary-light); }
.faq-accordion .accordion-title::after { content: "+"; font-size: 22px; color: var(--primary); font-weight: 400; transition: transform .2s ease; background: transparent; }
.faq-accordion .accordion-item.is-active .accordion-title::after { content: "−"; }
.faq-accordion .accordion-content { padding: 0 22px 20px; border-top: none; background: transparent; color: var(--text-secondary); font-size: 15px; line-height: 1.75; }
.faq-accordion .accordion-content p { padding: 0; margin: 0; }

/* ==================== CTA ==================== */
.cta-section { background: var(--primary-dark); position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px; background: rgba(201,151,63,0.15); border-radius: 50%; }
.cta-section::after { content: ""; position: absolute; bottom: -40px; left: 40px; width: 120px; height: 120px; background: rgba(255,255,255,0.05); border-radius: 50%; }
.cta-inner { position: relative; z-index: 2; text-align: center; padding: 72px 24px; }
.cta-title { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 14px; font-family: var(--font-serif); }
.cta-desc { font-size: 16px; color: rgba(255,255,255,0.75); max-width: 520px; margin: 0 auto 32px; line-height: 1.7; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ==================== 页脚 ==================== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.75); }
.footer-top { padding: 60px 0 40px; display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 48px; }
.footer-brand .brand-text { font-size: 22px; color: #fff; font-weight: 700; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--accent); }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.6); transition: all .2s ease; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--accent); width: 16px; }
.footer-subscribe { margin-top: 20px; display: flex; gap: 8px; }
.footer-subscribe input { flex: 1; padding: 10px 14px; border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-sm); background: rgba(255,255,255,0.1); color: #fff; font-size: 14px; transition: all .2s ease; }
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.4); }
.footer-subscribe input:focus { border-color: var(--accent); outline: none; background: rgba(255,255,255,0.15); box-shadow: 0 0 0 2px rgba(201,151,63,0.2); }
.footer-subscribe .btn { padding: 10px 18px; font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }

/* ==================== 响应式 ==================== */
@media (max-width: 1023.98px) {
  .site-sidebar { display: none; }
  .main-content { margin-left: 0; }
  .mobile-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; background: var(--card-bg); box-shadow: 0 2px 8px rgba(20,40,38,0.08); position: sticky; top: 0; z-index: 300; }
  .mobile-header .brand-logo { flex-direction: row; align-items: center; gap: 10px; }
  .mobile-header .brand-mark { width: 34px; height: 34px; font-size: 11px; margin-bottom: 0; }
  .mobile-header .brand-text { font-size: 16px; color: var(--text-main); font-weight: 700; }
  .mobile-header .brand-sub { display: none; }
  .mobile-menu-toggle { background: none; border: none; font-size: 24px; color: var(--text-main); cursor: pointer; padding: 8px; border-radius: 6px; }
  .mobile-menu-toggle:hover { background: var(--primary-light); }
  .mobile-menu-wrap { display: block; background: var(--primary-dark); padding: 0; max-height: 0; overflow: hidden; transition: max-height .3s ease; }
  .mobile-menu-wrap.open { max-height: 360px; }
  .mobile-menu-wrap a { display: block; padding: 14px 20px; color: rgba(255,255,255,0.8); font-size: 16px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .mobile-menu-wrap a:hover { background: rgba(255,255,255,0.06); color: #fff; }
  .mobile-menu-wrap a.active { background: rgba(255,255,255,0.08); color: var(--accent); font-weight: 600; border-right: 3px solid var(--accent); }
  .hero-section { min-height: 440px; padding: 60px 0; }
  .hero-title { font-size: 36px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .category-cards { grid-template-columns: 1fr 1fr; }
  .news-layout { grid-template-columns: 1fr; gap: 32px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767.98px) {
  .section { padding: var(--space-section-mobile) 0; }
  .main-inner { padding: 0 20px; }
  .hero-container { padding: 0 20px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-section { min-height: 380px; padding: 48px 0; }
  .btn { padding: 12px 22px; font-size: 14px; }
  .features-grid { grid-template-columns: 1fr; }
  .category-cards { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .recommend-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .section-title { font-size: 24px; }
  .stats-grid { gap: 12px; }
  .stat-value { font-size: 24px; }
  .cta-title { font-size: 26px; }
  .cta-inner { padding: 48px 20px; }
  .faq-accordion .accordion-title { font-size: 15px; padding: 16px; }
  .faq-accordion .accordion-content { padding: 0 16px 16px; font-size: 14px; }
}

/* roulang page: category1 */
:root {
  --primary: #2E6B67;
  --primary-dark: #214A47;
  --primary-dark-2: #183936;
  --primary-light: #E7EFED;
  --accent: #C9973F;
  --accent-light: #F4E8D3;
  --bg: #F5F4EF;
  --card-bg: #FFFFFF;
  --text-main: #1B2625;
  --text-sub: #5D6B69;
  --text-muted: #8A9593;
  --border: #E3E0D8;
  --radius: 10px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(20, 40, 38, 0.06);
  --shadow-hover: 0 8px 24px rgba(20, 40, 38, 0.10);
  --space-sec: 80px;
  --space-sec-mobile: 48px;
  --font-main: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
p { margin: 0 0 1.2em; }
h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.01em; margin: 0 0 0.6em; }
h1 { font-size: 40px; font-weight: 800; }
h2 { font-size: 28px; font-weight: 700; }
h3 { font-size: 20px; font-weight: 700; }
h4 { font-size: 16px; font-weight: 700; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

.site-shell { display: flex; min-height: 100vh; }

/* =================== Sidebar =================== */
.sidebar {
  width: 264px;
  flex-shrink: 0;
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 100;
}
.sidebar-brand {
  padding: 32px 24px 28px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-dot {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #b37f2e);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(201,151,63,0.35);
}
.brand-dot i { color: #fff; font-size: 14px; }
.brand-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.brand-sub { font-size: 11px; color: rgba(255,255,255,0.45); margin-top: 4px; letter-spacing: 0.08em; }

.sidebar-nav {
  flex: 1;
  padding: 20px 0;
  overflow-y: auto;
}
.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 24px;
  color: rgba(255,255,255,0.65);
  font-size: 15px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all .2s ease;
  position: relative;
}
.sidebar-nav .nav-link i { width: 18px; text-align: center; font-size: 15px; }
.sidebar-nav .nav-link:hover { color: #fff; background: rgba(255,255,255,0.06); }
.sidebar-nav .nav-link.active {
  color: #fff;
  border-left-color: var(--accent);
  background: rgba(255,255,255,0.08);
  font-weight: 600;
}
.sidebar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.sidebar-foot {
  padding: 20px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  line-height: 1.6;
}

/* =================== Mobile Top Nav =================== */
.mobile-topbar { display: none; }

/* =================== Main Content =================== */
.main-content {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: calc(100% - 264px);
  padding: 0 0 0 0;
}

/* =================== Hero =================== */
.page-hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary-dark);
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.55;
  transform: scale(1.02);
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(24,57,54,0.82) 0%, rgba(33,74,71,0.45) 55%, rgba(33,74,71,0.2) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  padding: 60px 48px;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: #F4E8D3;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.hero-inner h1 {
  font-size: 40px;
  color: #fff;
  margin-bottom: 16px;
  font-family: var(--font-serif);
}
.hero-inner h1 span { color: var(--accent); }
.hero-sub { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.85); margin-bottom: 30px; max-width: 620px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .2s ease;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(46,107,103,0.3);
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(46,107,103,0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* =================== Section Common =================== */
.section { padding: var(--space-sec) 0; }
.section-tight { padding: 0 0 var(--space-sec); }
.container-inner { max-width: 1120px; padding: 0 48px; margin: 0 auto; }
.section-head { margin-bottom: 40px; }
.section-head .sec-kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: block;
}
.section-head h2 { font-size: 30px; margin-bottom: 10px; font-family: var(--font-serif); }
.section-head p { color: var(--text-sub); font-size: 15px; max-width: 680px; }

/* =================== Overview =================== */
.overview-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.overview-text p { font-size: 15.5px; color: var(--text-sub); }
.overview-text .lead { font-size: 17px; color: var(--text-main); font-weight: 500; }
.overview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all .25s ease;
  border: 1px solid transparent;
}
.stat-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--primary-light); }
.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-serif);
  line-height: 1.2;
}
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* =================== Service Cards =================== */
.section-services { background: var(--bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  border: 1px solid transparent;
}
.service-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); border-color: var(--primary-light); }
.service-card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.service-card:hover .service-card-img img { transform: scale(1.04); }
.service-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(24,57,54,0.25), transparent 55%);
  pointer-events: none;
}
.service-card-body { padding: 22px 22px 20px; display: flex; flex-direction: column; flex: 1; }
.service-card-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  margin-bottom: 14px;
  transition: all .25s ease;
}
.service-card:hover .service-card-icon { background: var(--primary); color: #fff; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; flex: 1; }
.service-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.service-card-meta .tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}

/* =================== Process =================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  counter-reset: process;
}
.process-step {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px 20px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all .25s ease;
  border: 1px solid transparent;
}
.process-step:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--accent); }
.process-step::before {
  counter-increment: process;
  content: counter(process, decimal-leading-zero);
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-serif);
  margin-bottom: 10px;
  display: block;
  opacity: 0.9;
}
.process-step h4 { font-size: 15px; margin-bottom: 6px; }
.process-step p { font-size: 12.5px; color: var(--text-muted); line-height: 1.6; margin: 0; }
.process-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
  position: absolute;
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  background: var(--bg);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  align-items: center;
  justify-content: center;
}

/* =================== Feature / Promise =================== */
.section-promise {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.9);
  position: relative;
  overflow: hidden;
}
.section-promise::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,151,63,0.18), transparent 70%);
  top: -120px;
  right: -100px;
}
.promise-inner { position: relative; z-index: 2; }
.promise-head { margin-bottom: 40px; }
.promise-head h2 { color: #fff; }
.promise-head p { color: rgba(255,255,255,0.6); max-width: 640px; }
.promise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.promise-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all .3s ease;
}
.promise-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); border-color: rgba(201,151,63,0.4); }
.promise-item i { font-size: 26px; color: var(--accent); margin-bottom: 16px; }
.promise-item h4 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.promise-item p { font-size: 13.5px; color: rgba(255,255,255,0.55); line-height: 1.7; margin: 0; }

/* =================== FAQ =================== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow .25s ease;
  border: 1px solid transparent;
}
.faq-item:hover { box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  font-weight: 600;
  font-size: 15.5px;
  cursor: pointer;
  min-height: 56px;
  color: var(--text-main);
  transition: color .2s ease;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: all .3s ease;
}
.faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-a-inner {
  padding: 0 26px 22px;
  color: var(--text-sub);
  font-size: 14.5px;
  line-height: 1.8;
}
.faq-a-inner p:last-child { margin-bottom: 0; }

/* =================== CTA =================== */
.section-cta {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  text-align: center;
}
.cta-inner { max-width: 680px; margin: 0 auto; }
.cta-inner h2 { font-family: var(--font-serif); font-size: 28px; }
.cta-inner p { color: var(--text-sub); font-size: 15px; margin-bottom: 30px; }
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(201,151,63,0.35);
}
.btn-accent:hover { background: #b5852f; color: #fff; transform: translateY(-2px); }
.btn-accent:active { transform: translateY(0); }
.btn-outline-dark {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline-dark:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline-dark:active { transform: translateY(0); }

/* =================== Footer =================== */
.site-footer {
  background: var(--primary-dark-2);
  color: rgba(255,255,255,0.6);
  padding: 64px 0 0;
}
.footer-top {
  max-width: 1120px;
  padding: 0 48px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-text {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  display: block;
  font-family: var(--font-serif);
}
.footer-brand p { font-size: 13.5px; line-height: 1.8; color: rgba(255,255,255,0.5); margin: 0; }
.footer-col h4 {
  font-size: 15px;
  color: #fff;
  margin-bottom: 18px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.5); font-size: 14px; transition: all .2s ease; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.5); margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent); width: 16px; }
.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.footer-subscribe input {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06);
  color: #fff;
  font-size: 13.5px;
  transition: all .2s ease;
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.35); }
.footer-subscribe input:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 2px rgba(201,151,63,0.2);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.35); margin: 0; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* =================== Responsive =================== */
@media screen and (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .process-arrow { display: none; }
  .promise-grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 1023px) {
  .site-shell { flex-direction: column; }
  .sidebar { display: none; }
  .main-content { width: 100%; }
  .mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary-dark);
    color: #fff;
    padding: 14px 20px;
    position: sticky;
    top: 0;
    z-index: 200;
    box-shadow: 0 2px 12px rgba(20,40,38,0.18);
  }
  .mobile-brand { font-weight: 800; font-size: 16px; color: #fff; font-family: var(--font-serif); display: flex; align-items: center; gap: 8px; }
  .mobile-brand i { color: var(--accent); }
  .hamburger {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 22px;
    padding: 6px 10px;
    border-radius: 6px;
    transition: background .2s ease;
  }
  .hamburger:hover { background: rgba(255,255,255,0.1); }
  .mobile-menu {
    display: none;
    background: var(--primary-dark);
    padding: 12px 20px 24px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
  }
  .mobile-menu.open { display: block; }
  .mobile-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255,255,255,0.7);
    padding: 14px 8px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: all .2s ease;
  }
  .mobile-menu a i { width: 18px; text-align: center; color: rgba(255,255,255,0.4); }
  .mobile-menu a:last-child { border-bottom: none; }
  .mobile-menu a:hover, .mobile-menu a.active { color: #fff; background: rgba(255,255,255,0.05); }
  .mobile-menu a.active { border-left: 3px solid var(--accent); }
  .pages-hero { min-height: 380px; }
}
@media screen and (max-width: 768px) {
  :root { --space-sec: 48px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .container-inner { padding: 0 20px; }
  .footer-top { padding: 0 20px 40px; grid-template-columns: 1fr; gap: 32px; }
  .hero-inner { padding: 40px 20px; }
  .hero-inner h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .overview-grid { grid-template-columns: 1fr; gap: 28px; }
  .overview-stats { gap: 10px; }
  .stat-num { font-size: 22px; }
  .services-grid { grid-template-columns: 1fr; gap: 18px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .promise-grid { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}
@media screen and (max-width: 520px) {
  .container-inner { padding: 0 16px; }
  .overview-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .stat-card { padding: 16px 8px; }
  .stat-num { font-size: 19px; }
  .stat-label { font-size: 11px; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-subscribe { flex-direction: column; }
  .page-hero { min-height: 320px; }
}

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

/* roulang page: article */
:root {
  --primary: #2E6B67;
  --primary-dark: #214A47;
  --primary-light: #E7EFED;
  --accent: #C9973F;
  --bg: #F5F4EF;
  --card-bg: #FFFFFF;
  --text-main: #1B2625;
  --text-sub: #5D6B69;
  --text-weak: #8A9593;
  --border: #E3E0D8;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 2px 8px rgba(20,40,38,0.06);
  --shadow-lg: 0 8px 24px rgba(20,40,38,0.10);
  --transition: 0.2s ease;
  --sidebar-w: 264px;
  --font-main: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container, .main-inner { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* ========== 整体布局 ========== */
.site-shell { display: flex; min-height: 100vh; background: var(--bg); }
.main-content { margin-left: var(--sidebar-w); flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* ========== 侧边栏 ========== */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--primary-dark);
  color: #fff;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 22px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #aa7f32);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.18);
  flex-shrink: 0;
}
.brand-name { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.35; letter-spacing: 0.01em; }
.sidebar-toggle {
  display: none;
  background: none; border: 0; color: #fff; font-size: 20px;
  padding: 8px 10px; border-radius: 6px;
  transition: background var(--transition);
}
.sidebar-toggle:hover { background: rgba(255,255,255,0.1); }
.sidebar-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.sidebar-nav { padding: 18px 14px 12px; display: flex; flex-direction: column; gap: 3px; }
.nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  color: rgba(255,255,255,0.74);
  border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
}
.nav-link i { width: 20px; text-align: center; font-size: 15px; opacity: 0.9; }
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; color: #fff; }
.nav-link.active { background: rgba(255,255,255,0.08); color: #fff; font-weight: 600; }
.nav-link.active::after {
  content: "";
  position: absolute; right: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 26px;
  background: var(--accent);
  border-radius: 3px 0 0 3px;
}
.sidebar-foot {
  margin-top: auto;
  padding: 20px 22px;
  border-top: 1px solid rgba(255,255,255,0.07);
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ========== 移动端导航 ========== */
@media (max-width: 1023px) {
  .sidebar { width: 100%; height: auto; overflow: visible; }
  .sidebar-head { padding: 14px 18px; }
  .sidebar-nav { display: none; padding: 6px 16px 16px; }
  .sidebar.open .sidebar-nav { display: flex; }
  .sidebar-foot { display: none; }
  .sidebar-toggle { display: inline-flex; }
  .main-content { margin-left: 0; padding-top: 62px; }
  .brand-name { font-size: 16px; }
  .nav-link { padding: 13px 16px; font-size: 16px; }
}

/* ========== 文章英雄横幅 ========== */
.article-hero {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  padding: 64px 0 56px;
  overflow: hidden;
  background: var(--primary-dark);
}
.article-hero-bg {
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.article-hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(33,74,71,0.56) 0%, rgba(33,74,71,0.88) 100%);
  z-index: 1;
}
.article-hero .container { position: relative; z-index: 2; }

.breadcrumb {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: rgba(255,255,255,0.86); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.breadcrumb .sep { opacity: 0.45; margin: 0 3px; }
.breadcrumb .current { color: var(--accent); font-weight: 500; max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.article-h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  margin: 0;
  max-width: 860px;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255,255,255,0.72);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { font-size: 13px; opacity: 0.85; }

@media (max-width: 639px) {
  .article-hero { min-height: 280px; padding: 48px 0 40px; }
  .article-h1 { -webkit-line-clamp: 4; }
}

/* ========== 文章主体 ========== */
.article-main {
  padding: 48px 0 80px;
  flex: 1;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
}
.article-content {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px 56px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  word-wrap: break-word;
}
@media (max-width: 639px) {
  .article-content { padding: 28px 22px; border-radius: var(--radius-md); }
  .article-main { padding: 24px 0 48px; }
}
.article-content p { margin: 0 0 1.5em; }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 1.9em 0 0.8em;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-light);
}
.article-content h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin: 1.6em 0 0.7em; }
.article-content h4 { font-size: 17px; font-weight: 700; color: var(--primary-dark); margin: 1.4em 0 0.5em; }
.article-content ul, .article-content ol { margin: 0 0 1.5em 1.4em; padding: 0; }
.article-content li { margin-bottom: 0.45em; }
.article-content img { border-radius: 10px; box-shadow: var(--shadow-sm); margin: 1.6em 0; }
.article-content blockquote {
  margin: 1.8em 0;
  padding: 20px 26px;
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  color: var(--text-sub);
  font-style: italic;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content a { text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 14px; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--primary-light); font-weight: 600; }
.article-content code { background: #F0EFEA; padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.article-content pre { background: var(--primary-dark); color: #fff; padding: 18px 20px; border-radius: 10px; overflow-x: auto; margin: 1.6em 0; }
.article-content pre code { background: none; color: inherit; padding: 0; }

/* ========== 文章标签 ========== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.tag-label { font-size: 14px; font-weight: 600; color: var(--text-sub); margin-right: 2px; }
.tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-light);
  border: 1px solid transparent;
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}
.tag:hover { border-color: var(--primary); background: transparent; color: var(--primary); }
.tag:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ========== 内容未找到 ========== */
.article-empty {
  text-align: center;
  padding: 72px 40px;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.empty-icon {
  font-size: 52px;
  color: var(--accent);
  margin-bottom: 20px;
}
.article-empty h3 { font-size: 24px; font-weight: 700; margin: 0 0 10px; color: var(--primary-dark); }
.article-empty p { color: var(--text-sub); font-size: 15px; margin: 0 0 26px; }

/* ========== 相关推荐 ========== */
.related-section {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  letter-spacing: -0.01em;
}
.more-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}
.more-link:hover { color: var(--accent); gap: 10px; }
.more-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.related-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.related-card .card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-light);
}
.related-card .card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .card-thumb img { transform: scale(1.04); }
.thumb-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.card-body { padding: 22px 22px 24px; }
.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-main);
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 1023px) {
  .related-section { padding: 56px 0 48px; }
  .related-col { margin-bottom: 20px; }
}
@media (max-width: 639px) {
  .section-head h2 { font-size: 24px; }
}

/* ========== 返回入口 ========== */
.back-nav {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 24px 0 0;
  margin-top: 40px;
}
@media (max-width: 639px) {
  .back-nav { flex-direction: column; align-items: center; }
}

/* ========== CTA 区块 ========== */
.article-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
}
.cta-box h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 800;
  margin: 0 0 14px;
}
.cta-box p {
  font-size: 15px;
  color: rgba(255,255,255,0.82);
  margin: 0 0 30px;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 639px) {
  .article-cta { padding: 48px 0; }
  .cta-box h2 { font-size: 24px; }
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  line-height: 1.4;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff !important;
  border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(33,74,71,0.25); }
.btn-outline-light { background: transparent; color: #fff !important; border: 1px solid rgba(255,255,255,0.65); }
.btn-outline-light:hover { background: rgba(255,255,255,0.14); color: #fff !important; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff !important; border-color: var(--accent); }
.btn-accent:hover { background: #b58532; border-color: #b58532; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(201,151,63,0.3); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn.saved { background: var(--primary); border-color: var(--primary); color: #fff !important; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.72);
  padding: 60px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  font-family: var(--font-serif);
  letter-spacing: 0.01em;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.58);
  margin: 0;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.62);
  font-size: 14px;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a::before { content: "›"; color: var(--accent); font-size: 15px; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin: 0 0 10px;
}
.footer-contact i { color: var(--accent); font-size: 14px; width: 18px; text-align: center; }
.footer-subscribe { display: flex; gap: 8px; margin-top: 18px; }
.footer-subscribe input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.4); }
.footer-subscribe input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,151,63,0.18); }
.footer-subscribe .btn { padding: 0.625rem 1.25rem; font-size: 14px; }
.footer-bottom {
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.42);
  text-align: center;
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }
.footer-bottom a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 639px) {
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .site-footer { padding-top: 44px; }
}

/* ========== 通用 ========== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
@media (max-width: 520px) {
  .container, .main-inner { padding-left: 16px; padding-right: 16px; }
  .breadcrumb { font-size: 13px; }
  .meta-item { gap: 4px; }
  .article-cta p { font-size: 14px; }
}

/* roulang page: category2 */
:root {
  --color-primary: #2E6B67;
  --color-primary-dark: #214A47;
  --color-primary-light: #E7EFED;
  --color-accent: #C9973F;
  --color-bg: #F5F4EF;
  --color-white: #FFFFFF;
  --color-text: #1B2625;
  --color-text-secondary: #5D6B69;
  --color-text-muted: #8A9593;
  --color-border: #E3E0D8;
  --radius-card: 10px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 8px rgba(20, 40, 38, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(20, 40, 38, 0.10);
  --section-space: 80px;
  --section-space-mobile: 48px;
  --sidebar-width: 264px;
  --font-base: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-title: "Noto Serif SC", serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
a:hover {
  color: var(--color-primary-dark);
}
button,
input {
  font-family: inherit;
  font-size: inherit;
}
ul {
  list-style: none;
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.site-shell {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-primary-dark);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.sidebar-inner {
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: space-between;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
  padding: 0 4px;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), #3a8b86);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}
.brand-name {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  transition: all 0.2s ease;
  position: relative;
}
.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 15px;
}
.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.nav-link:active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}
.nav-link.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  right: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 2px;
}
.sidebar-footer {
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
}
.main-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.mobile-header {
  display: none;
}
.mobile-nav {
  display: none;
}
.cat-hero {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: flex-end;
  padding: 56px;
  margin: 32px auto 0;
  background-size: cover;
  background-position: center;
  box-shadow: 0 4px 24px rgba(20, 40, 38, 0.12);
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(27, 38, 37, 0.25) 0%, rgba(27, 38, 37, 0.72) 60%, rgba(27, 38, 37, 0.88) 100%);
}
.cat-hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.cat-hero h1 {
  font-family: var(--font-title);
  color: #fff;
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.cat-hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 580px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  line-height: 1.5;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(33, 74, 71, 0.25);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(0);
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: #b5832f;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(201, 151, 63, 0.3);
}
.section-block {
  padding: var(--section-space) 0 0;
}
.section-head {
  margin-bottom: 40px;
  max-width: 720px;
}
.section-badge {
  display: inline-flex;
  align-items: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.section-head h2 {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}
.benefit-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.benefit-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-5px);
}
.benefit-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 24px;
  margin-bottom: 18px;
  transition: background 0.2s ease;
}
.benefit-card:hover .benefit-icon {
  background: var(--color-primary);
  color: #fff;
}
.benefit-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.4;
}
.benefit-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}
.benefit-num {
  font-family: var(--font-title);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.level-card {
  background: var(--color-white);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.level-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}
.level-card .level-name {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.level-card .level-sub {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}
.level-card ul {
  text-align: left;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.level-card ul li {
  position: relative;
  padding-left: 28px;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}
.level-card ul li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--color-primary);
  font-size: 14px;
}
.level-card.featured {
  background: var(--color-primary-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.level-card.featured::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}
.level-card.featured .level-name,
.level-card.featured .level-sub,
.level-card.featured ul li {
  color: #fff;
  position: relative;
}
.level-card.featured ul li::before {
  color: var(--color-accent);
}
.level-card.featured .level-sub {
  color: rgba(255, 255, 255, 0.6);
}
.level-card .btn {
  margin-top: auto;
}
.feature-row {
  display: flex;
  align-items: center;
  gap: 56px;
  margin-bottom: 56px;
}
.feature-row:last-child {
  margin-bottom: 0;
}
.feature-media {
  flex: 1.1;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(20, 40, 38, 0.1);
}
.feature-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.feature-media:hover img {
  transform: scale(1.03);
}
.feature-text {
  flex: 1;
}
.feature-tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.feature-text h3 {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  line-height: 1.4;
}
.feature-text p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.85;
}
.feature-row.reverse {
  flex-direction: row-reverse;
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-white);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-card-hover);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  line-height: 1.5;
  transition: background 0.2s ease;
  min-height: 56px;
}
.faq-question:hover {
  background: var(--color-primary-light);
}
.faq-question:active {
  background: rgba(46, 107, 103, 0.15);
}
.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 28px 24px;
}
.cta-block {
  background: var(--color-primary-dark);
  border-radius: 20px;
  text-align: center;
  color: #fff;
  padding: 64px 48px;
  margin-top: var(--section-space);
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}
.cta-block::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -40px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}
.cta-block h2 {
  font-family: var(--font-title);
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.cta-block p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--section-space);
  padding: 56px 0 24px;
}
.site-footer .main-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.6fr;
  gap: 48px;
  margin-bottom: 36px;
}
.footer-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  font-family: var(--font-title);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact p {
  margin-bottom: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}
.footer-contact i {
  width: 20px;
  color: var(--color-accent);
  margin-right: 6px;
}
.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.footer-subscribe input {
  flex: 1;
  padding: 11px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.footer-subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}
.footer-subscribe input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.12);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.8);
}
.footer-bottom a:hover {
  color: #fff;
}
.pull-quote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-light);
  padding: 24px 28px;
  border-radius: 0 12px 12px 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  margin: 24px 0;
}
.pull-quote p {
  color: var(--color-text);
}
@media (max-width: 1024px) {
  .site-shell {
    display: block;
  }
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    width: 100%;
  }
  .mobile-header {
    display: flex;
    position: sticky;
    top: 0;
    z-index: 99;
    background: var(--color-white);
    padding: 14px 20px;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(20, 40, 38, 0.08);
  }
  .mobile-brand {
    font-weight: 700;
    color: var(--color-primary-dark);
    font-size: 17px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .mobile-brand .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 12px;
    border-radius: 10px;
  }
  .mobile-toggle {
    width: 42px;
    height: 42px;
    border: none;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    border-radius: 8px;
  }
  .mobile-toggle:hover {
    background: var(--color-primary-light);
  }
  .mobile-toggle:active {
    background: rgba(46, 107, 103, 0.2);
  }
  .mobile-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-primary-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
  }
  .mobile-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .mobile-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary-dark);
    z-index: 98;
    display: none;
    padding: 84px 28px 24px;
    overflow-y: auto;
  }
  .mobile-nav.open {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .mobile-nav .nav-link {
    font-size: 18px;
    padding: 16px;
    color: rgba(255, 255, 255, 0.8);
  }
  .mobile-nav .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
  }
  .mobile-nav .nav-link.active::after {
    display: none;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 768px) {
  .main-inner {
    padding: 0 20px;
  }
  .cat-hero {
    padding: 32px 24px;
    min-height: 340px;
    margin-top: 20px;
  }
  .cat-hero h1 {
    font-size: 30px;
  }
  .cat-hero p {
    font-size: 15px;
  }
  .section-block {
    padding: var(--section-space-mobile) 0 0;
  }
  .section-head {
    margin-bottom: 28px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .feature-row {
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
  }
  .feature-row.reverse {
    flex-direction: column;
  }
  .feature-media img {
    height: 220px;
  }
  .feature-text h3 {
    font-size: 20px;
  }
  .level-card {
    padding: 32px 24px;
  }
  .cta-block {
    padding: 48px 24px;
    margin-top: var(--section-space-mobile);
  }
  .cta-block h2 {
    font-size: 24px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: auto;
  }
  .site-footer {
    margin-top: var(--section-space-mobile);
  }
  .site-footer .main-inner {
    padding: 0 20px;
  }
  .footer-subscribe {
    flex-direction: column;
  }
  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }
  .faq-item.open .faq-answer {
    padding: 0 20px 20px;
  }
}
@media (max-width: 520px) {
  .main-inner {
    padding: 0 16px;
  }
  .cat-hero {
    padding: 28px 20px;
    border-radius: 14px;
    min-height: 300px;
  }
  .cat-hero h1 {
    font-size: 26px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .benefit-card {
    padding: 28px 20px;
  }
  .cta-block {
    padding: 36px 20px;
  }
  .footer-bottom {
    font-size: 12px;
  }
  .pull-quote {
    padding: 18px 20px;
    font-size: 15px;
  }
}

/* roulang page: category3 */
:root {
  --primary: #2E6B67;
  --primary-dark: #214A47;
  --primary-light: #E7EFED;
  --accent: #C9973F;
  --bg: #F5F4EF;
  --card-bg: #FFFFFF;
  --text-main: #1B2625;
  --text-sub: #5D6B69;
  --text-light: #8A9593;
  --border: #E3E0D8;
  --radius-card: 10px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --shadow-card: 0 2px 8px rgba(20, 40, 38, 0.06);
  --shadow-hover: 0 8px 24px rgba(20, 40, 38, 0.10);
  --space-section: 80px;
  --space-section-mobile: 48px;
  --font-main: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--primary-dark);
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 38px;
  font-weight: 800;
}

h2 {
  font-size: 28px;
  font-family: var(--font-serif);
}

h3 {
  font-size: 20px;
}

h4 {
  font-size: 17px;
}

p {
  margin: 0 0 1em;
  line-height: 1.75;
}

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

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

::selection {
  background: var(--primary-light);
  color: var(--primary-dark);
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.site-shell {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 264px;
  z-index: 100;
  background: var(--primary-dark);
  display: flex;
  flex-direction: column;
  padding: 32px 0 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-brand {
  padding: 0 28px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}

.brand-logo {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  padding-left: 22px;
}

.brand-logo::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 26px;
  background: var(--accent);
  border-radius: 2px;
}

.brand-logo i {
  color: var(--accent);
  font-size: 20px;
}

.sidebar-nav {
  flex: 1;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-radius: var(--radius-card);
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: all var(--transition);
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition);
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

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

.nav-link.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px 0 0 2px;
}

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

.sidebar-footer {
  padding: 20px 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  line-height: 1.6;
}

.main-content {
  margin-left: 264px;
  min-height: 100vh;
  background: var(--bg);
}

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

.section {
  padding: var(--space-section) 0;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head::before {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  margin: 0 auto 20px;
}

.section-head h2 {
  font-size: 28px;
  margin-bottom: 14px;
  font-weight: 700;
}

.section-head p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}

/* 移动端顶部导航 */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 99;
  background: var(--card-bg);
  padding: 14px 20px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 12px rgba(20, 40, 38, 0.08);
}

.mobile-brand {
  font-weight: 800;
  font-size: 16px;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-brand::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--accent);
  border-radius: 2px;
}

.hamburger {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--primary-dark);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: background var(--transition);
}

.hamburger:hover {
  background: var(--primary-light);
}

.hamburger:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary-dark);
  z-index: 98;
  padding: 76px 28px 30px;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

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

.mobile-menu a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 18px;
  line-height: 2.5;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all var(--transition);
  font-weight: 500;
}

.mobile-menu a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.mobile-menu a.active {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  font-weight: 700;
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 24px;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
}

/* Hero 区块 */
.cat-hero {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary-dark);
}

.cat-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.45;
}

.cat-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(33, 74, 71, 0.92) 0%, rgba(33, 74, 71, 0.6) 50%, rgba(33, 74, 71, 0.35) 100%);
}

.cat-hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.hero-badge i {
  color: var(--accent);
  font-size: 14px;
}

.cat-hero-content h1 {
  color: #fff;
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 18px;
  max-width: 640px;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.cat-hero-content .hero-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 1.8;
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  position: relative;
}

.btn i {
  font-size: 15px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(46, 107, 103, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(46, 107, 103, 0.32);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(46, 107, 103, 0.2);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
}

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

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(201, 151, 63, 0.3);
}

.btn-accent:hover {
  background: #b07f2e;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(201, 151, 63, 0.36);
}

/* 核心保障卡片 */
.guarantee-grid {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.guarantee-col {
  margin-bottom: 24px;
}

.guarantee-card {
  background: var(--bg);
  border-radius: var(--radius-card);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.guarantee-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.guarantee-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
}

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

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

.guarantee-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(33, 74, 71, 0.25), transparent 45%);
}

.guarantee-card-body {
  padding: 24px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.guarantee-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

/* 图文交替区块 */
.details-block {
  background: var(--bg);
}

.detail-media {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 4 / 3;
}

.detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.detail-media:hover img {
  transform: scale(1.02);
}

.detail-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(46, 107, 103, 0.08), transparent 60%);
}

.detail-content {
  padding-left: 32px;
}

.detail-content h2 {
  font-size: 28px;
  margin-bottom: 16px;
  font-family: var(--font-serif);
}

.detail-content .detail-intro {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.detail-list {
  display: grid;
  gap: 14px;
}

.detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  padding: 16px 18px;
  box-shadow: 0 1px 4px rgba(20, 40, 38, 0.04);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.detail-list li:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
  transform: translateX(2px);
}

.detail-list li i {
  color: var(--accent);
  font-size: 17px;
  margin-top: 4px;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
}

.detail-list li span {
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
}

/* 流程步骤区块 */
.process-block {
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.process-block::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

.process-block::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.02);
}

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

.process-block .section-head p {
  color: rgba(255, 255, 255, 0.65);
}

.process-step {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 30px 24px 28px;
  text-align: center;
  height: 100%;
  backdrop-filter: blur(4px);
  transition: all var(--transition);
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(201, 151, 63, 0.4);
  transform: translateY(-4px);
}

.step-num {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 18px;
}

.step-num::after {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: rgba(255, 255, 255, 0.2);
  margin: 14px auto 0;
  border-radius: 2px;
  transition: all var(--transition);
}

.process-step:hover .step-num::after {
  background: var(--accent);
  width: 48px;
}

.process-step h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}

/* FAQ 区块 */
.faq-block {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
}

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

.accordion {
  margin: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

.accordion-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition);
}

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

.accordion-item.is-active {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
}

.accordion-title {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: 16px 52px 16px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  line-height: 1.5;
  border: none;
  border-radius: 0;
  transition: color var(--transition);
}

.accordion-title:hover,
.accordion-title:focus {
  color: var(--primary);
  background: transparent;
}

.accordion-title::before,
.accordion-title::after {
  content: '';
  position: absolute;
  right: 22px;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--primary);
  transition: transform 0.3s ease;
}

.accordion-title::after {
  transform: rotate(90deg);
}

.accordion-item.is-active .accordion-title::after {
  transform: rotate(0deg);
}

.accordion-content {
  padding: 0 22px 20px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
  border: none;
  background: transparent;
}

.accordion-content p {
  line-height: 1.8;
  margin: 0;
}

/* CTA 区块 */
.cta-block {
  background: var(--bg);
  padding: 0;
}

.cta-inner {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius-card);
  padding: 56px 40px;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(33, 74, 71, 0.18);
}

.cta-inner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.cta-inner::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(201, 151, 63, 0.15);
}

.cta-inner h2 {
  color: #fff;
  font-size: 28px;
  font-family: var(--font-serif);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}

.cta-btns {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.share-row {
  margin-top: 28px;
  position: relative;
  z-index: 1;
}

.share-row span {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin-bottom: 12px;
}

.share-btns {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.share-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

/* 面包屑 */
.breadcrumbs-wrap {
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--text-light);
}

.breadcrumbs-wrap a {
  color: var(--text-sub);
}

.breadcrumbs-wrap a:hover {
  color: var(--primary);
}

.breadcrumbs-wrap .divider {
  margin: 0 8px;
  color: var(--border);
}

/* 页脚 */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 40px;
  padding: 56px 0 36px;
}

.footer-brand .brand-text {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  display: block;
  letter-spacing: 0.01em;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 380px;
  margin: 0;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

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

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.footer-contact p {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
  width: 16px;
  text-align: center;
  font-size: 14px;
}

.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.footer-subscribe input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-input);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 13px;
  transition: all var(--transition);
}

.footer-subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.footer-subscribe input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(201, 151, 63, 0.15);
}

.footer-bottom {
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom p {
  margin: 0;
  text-align: center;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

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

/* 响应式断点 */
@media (max-width: 1023.98px) {
  .sidebar {
    display: none;
  }

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

  .mobile-header {
    display: flex;
  }

  .cat-hero {
    min-height: 400px;
  }

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

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

  .detail-content {
    padding-left: 0;
    padding-top: 24px;
  }

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

@media (max-width: 767.98px) {
  :root {
    --space-section: var(--space-section-mobile);
  }

  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 24px;
  }

  .section {
    padding: var(--space-section-mobile) 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .cat-hero {
    min-height: 360px;
  }

  .cat-hero-content h1 {
    font-size: 27px;
  }

  .hero-desc {
    font-size: 14px !important;
  }

  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 14px;
  }

  .hero-btns {
    gap: 10px;
  }

  .cta-inner {
    padding: 36px 20px;
  }

  .cta-inner h2 {
    font-size: 22px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 0 28px;
  }

  .footer-brand p {
    max-width: 100%;
  }

  .main-inner {
    padding: 0 16px;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  .cat-hero-content h1 {
    font-size: 24px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 5px 12px;
  }

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

  .guarantee-card-body {
    padding: 20px 18px 22px;
  }

  .detail-list li {
    padding: 14px 14px;
  }

  .process-step {
    padding: 24px 18px;
  }

  .step-num {
    font-size: 34px;
  }

  .footer-subscribe {
    flex-direction: column;
  }

  .footer-subscribe .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}