/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --bg: #F6F4EC;
  --surface: #FFFFFF;
  --ink-1: #1C2421;
  --ink-2: #53605A;
  --border: #E6DFD0;
  --gold-700: #8A6932;
  --gold-500: #B98A44;
  --gold-300: #D9B36A;
  --gold-100: #F1E7D3;
  --pine-900: #131C18;
  --pine-700: #20302A;
  --pine-500: #3A6B5C;
  --success: #2F7D5A;
  --warning: #B98A44;
  --danger: #B4553C;
  --radius-lg: 18px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(20,29,26,0.06);
  --shadow-hover: 0 12px 32px rgba(20,29,26,0.12);
  --shadow-btn: 0 8px 20px rgba(185,138,68,0.28);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container: 1200px;
  --spacer: 120px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
table { border-collapse: collapse; width: 100%; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 32px; border-radius: var(--radius-pill);
  font-weight: 600; font-size: 15px; letter-spacing: .04em;
  border: 1px solid transparent; cursor: pointer;
  transition: all .25s ease; line-height: 1.4;
}
.btn-primary { background: var(--gold-500); color: var(--pine-900); }
.btn-primary:hover { background: var(--gold-300); transform: translateY(-2px); box-shadow: var(--shadow-btn); }
.btn-primary:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 2px; }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-outline-dark { background: transparent; border-color: var(--gold-500); color: var(--gold-700); }
.btn-outline-dark:hover { background: var(--gold-100); }
.btn-gold-light { background: var(--gold-300); color: var(--pine-900); }
.btn-gold-light:hover { background: #E8C97F; transform: translateY(-2px); box-shadow: var(--shadow-btn); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 42px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }

/* ===== 徽章 ===== */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 12px; border-radius: var(--radius-pill);
  background: var(--gold-100); color: var(--gold-700);
  font-size: 12px; font-weight: 600; line-height: 1.6;
  letter-spacing: .02em;
}

/* ===== Header/Nav ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 72px; background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(20,29,26,.08);
  backdrop-filter: blur(8px);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(20,29,26,.08); }
.header-inner {
  max-width: var(--container); height: 72px; margin: 0 auto;
  padding: 0 24px; display: flex; align-items: center; gap: 32px;
}
.brand {
  display: flex; align-items: center; gap: 12px; flex-shrink: 0;
}
.brand-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: var(--pine-900);
}
.brand-text {
  font-family: var(--font-serif); font-size: 20px; font-weight: 600;
  color: var(--pine-700); letter-spacing: .02em; white-space: nowrap;
}
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav a {
  display: inline-flex; align-items: center; padding: 10px 18px;
  font-size: 15px; font-weight: 500; color: var(--ink-1);
  border-radius: 8px; transition: all .25s ease; position: relative;
}
.main-nav a:hover { color: var(--gold-700); background: rgba(185,138,68,.06); }
.main-nav a.active {
  color: var(--gold-700); font-weight: 600;
}
.main-nav a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 18px; right: 18px;
  height: 2px; background: var(--gold-500); border-radius: 2px;
}
.header-right { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; }
.search-box input {
  width: 160px; height: 38px; padding: 0 14px 0 36px;
  border: 1px solid var(--border); border-radius: var(--radius-pill);
  background: var(--bg); font-size: 14px; color: var(--ink-1);
  transition: all .3s ease; outline: none;
}
.search-box input::placeholder { color: var(--ink-2); opacity: .7; }
.search-box input:focus {
  width: 220px; border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(185,138,68,.15); background: #fff;
}
.search-box i {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--gold-500); font-size: 14px; pointer-events: none;
}
.header-cta { height: 42px; padding: 0 24px; }
.hamburger {
  display: none; width: 44px; height: 44px; border: none; background: none;
  border-radius: 8px; cursor: pointer; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
}
.hamburger span {
  width: 22px; height: 2px; background: var(--ink-1); border-radius: 2px;
  transition: all .3s ease;
}

/* ===== Mobile Drawer ===== */
.mobile-drawer {
  display: none; position: fixed; top: 72px; right: 0; left: 0; z-index: 999;
  background: var(--surface); padding: 32px 24px; max-height: calc(100vh - 72px);
  overflow-y: auto; box-shadow: 0 16px 40px rgba(20,29,26,.14);
  transform: translateY(-16px); opacity: 0; transition: all .3s ease;
  pointer-events: none;
}
.mobile-drawer.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-drawer a.m-nav-link {
  display: block; padding: 14px 8px; font-size: 18px; font-weight: 500;
  color: var(--ink-1); border-bottom: 1px solid var(--border);
  transition: color .2s;
}
.mobile-drawer a.m-nav-link:hover { color: var(--gold-700); }
.mobile-drawer .m-search { margin: 20px 0; }
.mobile-drawer .m-search input {
  width: 100%; height: 44px; padding: 0 16px 0 40px;
  border: 1px solid var(--border); border-radius: var(--radius-pill);
  font-size: 14px;
}
.mobile-drawer .m-search .fa { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--gold-500); }
.mobile-drawer .m-cta { width: 100%; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    linear-gradient(rgba(19,28,24,.85), rgba(19,28,24,.45)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding-top: 72px; position: relative; text-align: center;
}
.hero-content { max-width: 880px; padding: 40px 24px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 20px; border-radius: var(--radius-pill);
  background: rgba(185,138,68,.18); color: var(--gold-300);
  font-size: 14px; font-weight: 500; letter-spacing: .06em;
  border: 1px solid rgba(217,179,106,.4); margin-bottom: 32px;
}
.hero h1 {
  font-family: var(--font-serif); font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700; color: #fff; line-height: 1.25;
  letter-spacing: .02em; margin-bottom: 24px;
}
.hero-divider { width: 48px; height: 2px; background: var(--gold-500); margin: 0 auto 24px; }
.hero-sub {
  font-size: clamp(1.125rem, 1.6vw, 1.25rem); font-weight: 400;
  color: rgba(255,255,255,.88); line-height: 1.7; margin-bottom: 40px;
}
.hero-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.7); font-size: 13px; letter-spacing: .1em;
  animation: floatDown 2s ease-in-out infinite;
}
.scroll-indicator i { font-size: 16px; }
@keyframes floatDown { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 10px); } }

/* ===== Section ===== */
.section { padding: var(--spacer) 0; }
.section-pine { background: var(--pine-700); }
.section-dark { background: var(--pine-900); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 72px; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--gold-500);
  letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-label i { font-size: 14px; }
.section-title {
  font-family: var(--font-serif); font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700; color: var(--ink-1); line-height: 1.35;
  letter-spacing: .02em; margin-bottom: 16px;
}
.section-desc { font-size: 16px; color: var(--ink-2); line-height: 1.8; }
.section-head-light .section-title { color: #fff; }
.section-head-light .section-desc { color: rgba(255,255,255,.75); }

/* ===== Features ===== */
.features-list .feature-item {
  display: grid; grid-template-columns: 1fr 1fr; gap: 72px;
  align-items: center; margin-bottom: 96px;
}
.features-list .feature-item:last-child { margin-bottom: 0; }
.feature-item.reverse .feature-media { order: 2; }
.feature-media { position: relative; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-card); }
.feature-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .4s ease; }
.feature-media:hover img { transform: scale(1.03); }
.feature-media::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(19,28,24,.2));
}
.feature-content { position: relative; }
.feature-num {
  font-family: var(--font-serif); font-size: 48px; font-weight: 700;
  color: var(--gold-500); line-height: 1; margin-bottom: 16px; display: block;
}
.feature-content h3 {
  font-size: 22px; font-weight: 600; margin-bottom: 12px;
  font-family: var(--font-serif); color: var(--ink-1);
}
.feature-content p { font-size: 15px; line-height: 1.9; color: var(--ink-2); }

/* ===== Demo ===== */
.demo-section { background: var(--pine-700); }
.demo-section .section-title { color: #fff; }
.demo-section .section-desc { color: rgba(255,255,255,.75); }
.demo-browser {
  max-width: 960px; margin: 0 auto; border-radius: 12px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.35); border: 1px solid rgba(255,255,255,.1);
}
.demo-browser-bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 20px;
  background: #f0eeea; border-bottom: 1px solid var(--border);
}
.demo-browser-bar span { width: 12px; height: 12px; border-radius: 50%; }
.demo-browser-bar span:nth-child(1) { background: #E06C5A; }
.demo-browser-bar span:nth-child(2) { background: #E0B34A; }
.demo-browser-bar span:nth-child(3) { background: #4CAF7D; }
.demo-browser-bar .addr {
  flex: 1; margin-left: 12px; padding: 4px 16px; background: #fff;
  border-radius: 6px; font-size: 13px; color: var(--ink-2); border: 1px solid var(--border);
}
.demo-browser img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.demo-steps {
  display: flex; justify-content: space-between; gap: 40px;
  margin-top: 64px; position: relative; max-width: 960px; margin-left: auto; margin-right: auto;
}
.demo-steps::before {
  content: ''; position: absolute; top: 24px; left: 10%; right: 10%;
  height: 2px; background: linear-gradient(90deg, var(--gold-500), var(--gold-300), var(--gold-500));
}
.demo-step {
  position: relative; text-align: center; flex: 1; background: var(--pine-700);
  padding: 16px 8px 0; z-index: 1;
}
.demo-step .step-icon {
  width: 48px; height: 48px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--gold-500); color: var(--pine-900);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  box-shadow: 0 4px 12px rgba(185,138,68,.3);
}
.demo-step h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.demo-step p { color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.7; }

/* ===== Stats ===== */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px;
  margin-bottom: 72px;
}
.stat-item { text-align: center; padding: 32px 16px; }
.stat-num {
  font-family: var(--font-serif); font-size: 52px; font-weight: 700;
  color: var(--gold-300); line-height: 1.2; font-variant-numeric: tabular-nums;
}
.stat-label { display: block; margin-top: 8px; color: rgba(255,255,255,.7); font-size: 14px; letter-spacing: .06em; }
.testimonial {
  max-width: 720px; margin: 0 auto; text-align: center;
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 56px;
}
.testimonial blockquote {
  font-family: var(--font-serif); font-size: 22px; line-height: 1.8;
  color: rgba(255,255,255,.9); font-style: normal;
}
.testimonial .author { margin-top: 24px; color: var(--gold-300); font-size: 14px; letter-spacing: .04em; }

/* ===== News ===== */
.news-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.news-feature {
  grid-column: 1 / -1; display: grid; grid-template-columns: 55% 1fr;
  gap: 0; background: var(--surface); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
  transition: box-shadow .3s ease, transform .3s ease; margin-bottom: 24px;
}
.news-feature:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-feature .nf-img { position: relative; overflow: hidden; min-height: 260px; }
.news-feature .nf-img img {
  width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16/9;
  transition: transform .4s ease;
}
.news-feature:hover .nf-img img { transform: scale(1.03); }
.news-feature .nf-content { padding: 40px; display: flex; flex-direction: column; justify-content: center; }
.news-feature .nf-content .badge { margin-bottom: 16px; align-self: flex-start; }
.news-feature .nf-content h3 {
  font-size: 24px; font-weight: 600; font-family: var(--font-serif);
  line-height: 1.4; margin-bottom: 12px; color: var(--ink-1);
  transition: color .2s; display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.news-feature:hover .nf-content h3 { color: var(--gold-700); }
.news-feature .nf-content p {
  color: var(--ink-2); font-size: 14px; line-height: 1.8; margin-bottom: 20px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-meta { display: flex; justify-content: space-between; align-items: center; }
.news-meta .date { color: var(--ink-2); font-size: 13px; font-variant-numeric: tabular-nums; }
.read-more {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--gold-700); font-size: 14px; font-weight: 600;
  transition: gap .2s;
}
.read-more i { font-size: 12px; }
.news-feature:hover .read-more i { transform: translateX(4px); }
.news-card {
  display: flex; flex-direction: column; background: var(--surface);
  border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border);
  transition: box-shadow .3s ease, transform .3s ease; height: 100%;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-card .nc-img { overflow: hidden; aspect-ratio: 16/9; }
.news-card .nc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .nc-img img { transform: scale(1.03); }
.news-card .nc-content { padding: 20px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.news-card .nc-content .badge { margin-bottom: 12px; align-self: flex-start; }
.news-card .nc-content h4 {
  font-size: 16px; font-weight: 600; line-height: 1.5; margin-bottom: 8px;
  color: var(--ink-1); font-family: var(--font-serif);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.news-card:hover .nc-content h4 { color: var(--gold-700); }
.news-card .nc-content p {
  font-size: 13px; color: var(--ink-2); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
  flex: 1;
}
.news-card .nc-content .date { margin-top: 16px; font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.news-empty {
  grid-column: 1 / -1; border: 2px dashed var(--gold-300); border-radius: var(--radius-lg);
  padding: 80px 24px; text-align: center; background: rgba(185,138,68,.04);
}
.news-empty i { font-size: 40px; color: var(--gold-300); margin-bottom: 16px; display: block; }
.news-empty p { color: var(--ink-2); font-size: 16px; }

/* ===== Pricing ===== */
.price-summary {
  display: flex; gap: 24px; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 40px; margin-bottom: 56px;
}
.price-summary-icon {
  width: 64px; height: 64px; border-radius: 16px; flex-shrink: 0;
  background: var(--gold-100); color: var(--gold-700);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.price-summary-text p { color: var(--ink-2); font-size: 15px; line-height: 1.8; }
.price-summary-text strong { color: var(--gold-700); font-weight: 600; }
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch;
}
.price-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 32px;
  display: flex; flex-direction: column; position: relative;
  transition: box-shadow .3s ease, transform .3s ease;
}
.price-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.price-card.featured {
  transform: translateY(-20px); border-color: var(--gold-500);
  box-shadow: 0 16px 48px rgba(185,138,68,.18); background: linear-gradient(180deg, #fff, #FDFAF4);
}
.price-card.featured:hover { transform: translateY(-24px); }
.price-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gold-500); color: var(--pine-900); padding: 4px 20px;
  border-radius: var(--radius-pill); font-size: 13px; font-weight: 600;
  letter-spacing: .04em; white-space: nowrap;
}
.price-name { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--ink-1); }
.price-desc { font-size: 14px; color: var(--ink-2); margin-bottom: 24px; line-height: 1.7; }
.price-value { margin-bottom: 24px; }
.price-value .amount {
  font-family: var(--font-serif); font-size: 40px; font-weight: 700;
  color: var(--gold-700); line-height: 1.2;
}
.price-value .period { font-size: 14px; color: var(--ink-2); }
.price-features { flex: 1; margin-bottom: 32px; }
.price-features li {
  padding: 8px 0; font-size: 14px; color: var(--ink-1);
  display: flex; gap: 10px; align-items: flex-start; line-height: 1.6;
}
.price-features li i { color: var(--gold-500); font-size: 14px; margin-top: 4px; flex-shrink: 0; }
.price-features li.dim { color: var(--ink-2); opacity: .6; }
.price-features li.dim i { color: var(--ink-2); }

/* ===== FAQ ===== */
.faq-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden; transition: border-color .3s;
}
.faq-item.open { border-color: var(--gold-300); }
.faq-q {
  display: flex; align-items: center; gap: 14px; padding: 18px 20px;
  cursor: pointer; user-select: none; min-height: 56px;
}
.faq-q i.fa-question-circle { color: var(--gold-500); font-size: 15px; flex-shrink: 0; }
.faq-q .q-text {
  flex: 1; font-size: 16px; font-weight: 600; color: var(--ink-1);
  line-height: 1.5;
}
.faq-item.open .faq-q .q-text { color: var(--gold-700); }
.faq-q .fa-chevron-down {
  color: var(--ink-2); font-size: 14px; transition: transform .3s ease; flex-shrink: 0;
}
.faq-item.open .fa-chevron-down { transform: rotate(180deg); color: var(--gold-500); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease;
}
.faq-a-inner { padding: 0 20px 20px 49px; font-size: 15px; color: var(--ink-2); line-height: 1.85; }

/* ===== CTA Section ===== */
.cta-section {
  padding: 96px 0; background:
    linear-gradient(rgba(19,28,24,.9), rgba(19,28,24,.7)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align: center;
}
.cta-section h2 {
  font-family: var(--font-serif); font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  color: #fff; margin-bottom: 16px;
}
.cta-section p { color: rgba(255,255,255,.75); font-size: 16px; margin-bottom: 40px; }

/* ===== Footer ===== */
.site-footer { background: var(--pine-900); color: rgba(255,255,255,.7); }
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
  padding: 72px 0 56px;
}
.footer-brand .brand-text { color: #fff; }
.footer-brand p {
  margin-top: 20px; font-size: 14px; line-height: 1.9;
  color: rgba(255,255,255,.55); max-width: 360px;
}
.footer-col h4 {
  color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px;
  font-family: var(--font-serif);
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
  font-size: 14px; color: rgba(255,255,255,.6);
  transition: color .2s, padding-left .2s;
}
.footer-col ul a:hover { color: var(--gold-300); padding-left: 4px; }
.footer-contact li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 14px;
}
.footer-contact i { color: var(--gold-500); margin-top: 4px; flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0; text-align: center; font-size: 14px;
  color: rgba(255,255,255,.4);
}

/* ===== Float CTA ===== */
.float-cta {
  position: fixed; z-index: 900; opacity: 0; visibility: hidden;
  transition: all .4s ease; pointer-events: none;
}
.float-cta.show { opacity: 1; visibility: visible; pointer-events: auto; }
.float-cta-desktop {
  right: 28px; bottom: 28px; width: 56px; height: 56px; border-radius: 50%;
  background: var(--gold-500); color: var(--pine-900); font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-btn); border: none; cursor: pointer;
  transition: transform .3s, background .3s;
}
.float-cta-desktop:hover { background: var(--gold-300); transform: translateY(-4px); }
.float-cta-mobile {
  display: none; left: 0; right: 0; bottom: 0; padding: 12px 16px;
  background: rgba(255,255,255,.95); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .main-nav a { padding: 10px 12px; font-size: 14px; }
  .header-inner { gap: 16px; }
}
@media (max-width: 992px) {
  .main-nav { display: none; }
  .header-right .search-box { display: none; }
  .header-right .header-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-drawer { display: block; }
  .features-list .feature-item { grid-template-columns: 1fr; gap: 40px; margin-bottom: 72px; }
  .feature-item.reverse .feature-media { order: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .price-card.featured:hover { transform: translateY(-8px); }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .news-feature { grid-template-columns: 1fr; }
  .news-feature .nf-img { min-height: 200px; max-height: 260px; }
  .demo-steps { flex-direction: column; gap: 32px; }
  .demo-steps::before { display: none; }
}
@media (max-width: 768px) {
  :root { --spacer: 64px; }
  .container { padding: 0 16px; }
  .brand-text { font-size: 17px; }
  .hero { padding-top: 72px; }
  .hero h1 { font-size: 28px; }
  .section-title { font-size: 24px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-feature { grid-column: auto; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .price-summary { flex-direction: column; text-align: center; padding: 24px; }
  .float-cta-desktop { display: none; }
  .float-cta-mobile { display: flex; justify-content: center; }
  .cta-section { padding: 72px 16px; }
}
@media (max-width: 520px) {
  .brand-text { font-size: 15px; letter-spacing: 0; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; }
  .hero-btns .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-num { font-size: 36px; }
  .news-feature .nf-content { padding: 24px 20px; }
  .news-card .nc-content { padding: 16px; }
}

/* roulang page: article */
:root {
  --bg: #F6F4EC;
  --surface: #FFFFFF;
  --ink-1: #1C2421;
  --ink-2: #53605A;
  --border: #E6DFD0;
  --gold-700: #8A6932;
  --gold-500: #B98A44;
  --gold-300: #D9B36A;
  --gold-100: #F1E7D3;
  --pine-900: #131C18;
  --pine-700: #20302A;
  --pine-500: #3A6B5C;
  --success: #2E7D5B;
  --warning: #C28A2E;
  --danger: #B4473A;
  --radius-card: 18px;
  --radius-img: 20px;
  --shadow-card: 0 4px 20px rgba(20,29,26,0.06);
  --shadow-hover: 0 12px 32px rgba(20,29,26,0.12);
  --shadow-gold: 0 8px 20px rgba(185,138,68,0.28);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-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: 1.85;
  color: var(--ink-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; transition: color 0.25s ease; }

ul, ol { list-style: none; }

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

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

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: var(--surface);
  border-bottom: 1px solid rgba(20,29,26,0.08);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(20,29,26,0.06);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pine-900);
  font-size: 18px;
}

.brand-text {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink-1);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  position: relative;
  padding: 22px 2px;
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold-500);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}

.main-nav a:hover {
  color: var(--gold-700);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.main-nav a.active {
  color: var(--gold-700);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.search-box {
  position: relative;
  width: 160px;
  transition: width 0.4s ease;
}

.search-box:focus-within {
  width: 220px;
}

.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold-500);
  font-size: 13px;
}

.search-box input {
  width: 100%;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 16px 0 38px;
  font-size: 14px;
  color: var(--ink-1);
  background: var(--bg);
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.search-box input::placeholder {
  color: #9AA39E;
}

.search-box input:focus {
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(185,138,68,0.15);
  background: var(--surface);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 24px;
  border: none;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-gold {
  background: var(--gold-500);
  color: var(--pine-900);
}

.btn-gold:hover {
  background: var(--gold-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
  color: var(--pine-900);
}

.btn-gold:focus {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--gold-500);
  color: var(--gold-700);
}

.btn-outline:hover {
  background: var(--gold-100);
  color: var(--gold-700);
  transform: translateY(-2px);
}

.btn-outline:focus {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

.btn-dark {
  background: var(--gold-300);
  color: var(--pine-900);
}

.btn-dark:hover {
  background: #E8C97F;
  transform: translateY(-2px);
}

.btn-dark:focus {
  outline: 2px solid var(--gold-300);
  outline-offset: 2px;
}

/* 移动端导航 */
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-1);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.menu-toggle:hover {
  border-color: var(--gold-500);
  color: var(--gold-700);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--surface);
  z-index: 200;
  padding: 24px;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
}

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

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 24px;
}

.drawer-nav a {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink-1);
  padding: 14px 0;
  border-bottom: 1px solid rgba(20,29,26,0.06);
}

.drawer-nav a.active {
  color: var(--gold-700);
}

.drawer-actions {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.drawer-actions .btn {
  width: 100%;
}

.drawer-close {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-1);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.drawer-close:hover {
  border-color: var(--gold-500);
  color: var(--gold-700);
}

/* 面包屑 */
.breadcrumb {
  padding: 32px 0 0;
}

.breadcrumb nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-2);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--ink-2);
  transition: color 0.25s ease;
}

.breadcrumb a:hover {
  color: var(--gold-700);
}

.breadcrumb .sep {
  color: #C4C7C2;
}

.breadcrumb .current {
  color: var(--gold-700);
  font-weight: 500;
}

/* 文章页头部 */
.article-header {
  padding: 40px 0 48px;
}

.article-header .container {
  max-width: 860px;
}

.article-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink-1);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.6;
}

.article-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-meta i {
  color: var(--gold-500);
  font-size: 13px;
}

.article-meta .category-link {
  color: var(--gold-700);
  font-weight: 500;
}

.divider-gold {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  border-radius: 3px;
  margin: 0 0 32px;
}

/* 正文阅读区 */
.article-main {
  padding: 0 0 64px;
  background: var(--bg);
}

.article-body-wrap {
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px;
  max-width: 860px;
  margin: 0 auto;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 2;
  color: var(--ink-1);
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-1);
  margin: 48px 0 20px;
  padding-left: 16px;
  border-left: 3px solid var(--gold-500);
}

.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-1);
  margin: 36px 0 16px;
}

.article-content p {
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.article-content a {
  color: var(--gold-700);
  border-bottom: 1px solid var(--gold-300);
  transition: border-color 0.25s ease, color 0.25s ease;
}

.article-content a:hover {
  color: var(--gold-500);
  border-color: var(--gold-500);
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.article-content ul li {
  list-style: disc;
  margin-bottom: 10px;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 10px;
}

.article-content blockquote {
  margin: 32px 0;
  padding: 24px 32px;
  background: var(--gold-100);
  border-left: 4px solid var(--gold-500);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--ink-2);
}

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

.article-content img {
  border-radius: var(--radius-img);
  margin: 32px 0;
  width: 100%;
  height: auto;
  box-shadow: var(--shadow-card);
}

.article-content table {
  width: 100%;
  margin: 32px 0;
  border-collapse: collapse;
  font-size: 15px;
  overflow-x: auto;
  display: block;
  white-space: nowrap;
}

.article-content table th,
.article-content table td {
  padding: 14px 18px;
  border: 1px solid var(--border);
  text-align: left;
}

.article-content table th {
  background: var(--gold-100);
  font-weight: 600;
  color: var(--gold-700);
}

.article-content table tr:nth-child(even) {
  background: var(--bg);
}

.article-content table::-webkit-scrollbar {
  height: 6px;
}

.article-content table::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* 相关推荐 */
.related-section {
  max-width: 860px;
  margin: 48px auto 0;
  padding: 0 24px;
}

.section-title-sm {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title-sm::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.related-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.related-card .card-img span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--pine-500), var(--pine-700));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 32px;
  transition: transform 0.4s ease;
}

.related-card:hover .card-img span {
  transform: scale(1.03);
}

.related-card .card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-card .card-body h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-1);
  transition: color 0.25s ease;
  flex: 1;
}

.related-card:hover .card-body h3 {
  color: var(--gold-700);
}

.related-card .card-meta {
  font-size: 13px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-card .card-meta i {
  color: var(--gold-500);
  font-size: 12px;
}

/* 返回链接 */
.back-links {
  max-width: 860px;
  margin: 32px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 20px;
}

.back-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-2);
  transition: all 0.25s ease;
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.back-links a:hover {
  color: var(--gold-700);
  border-color: var(--gold-500);
  background: var(--gold-100);
}

.back-links a i {
  font-size: 12px;
}

/* 内容未找到 */
.not-found {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 80px 24px;
}

.not-found .icon-box {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: var(--gold-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--gold-500);
  font-size: 28px;
}

.not-found h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--ink-1);
}

.not-found p {
  color: var(--ink-2);
  margin-bottom: 24px;
}

/* 页脚前 CTA */
.site-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--pine-900), var(--pine-700));
  position: relative;
  overflow: hidden;
}

.site-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(19,28,24,0.85), rgba(19,28,24,0.4));
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.3;
}

.cta-inner {
  position: relative;
  text-align: center;
}

.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--surface);
  margin-bottom: 16px;
}

.cta-inner p {
  color: rgba(255,255,255,0.8);
  font-size: 17px;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

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

/* 页脚 */
.site-footer {
  background: var(--pine-900);
  padding: 64px 0 0;
  color: rgba(255,255,255,0.7);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .brand-text {
  color: var(--surface);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 20px;
  max-width: 360px;
  color: rgba(255,255,255,0.6);
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--surface);
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color 0.25s ease;
}

.footer-col ul a:hover {
  color: var(--gold-300);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.footer-contact i {
  color: var(--gold-500);
  margin-top: 4px;
  font-size: 13px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

/* 浮动 CTA */
.floating-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.4s ease;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gold-500);
  color: var(--pine-900);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold);
  cursor: pointer;
  border: none;
}

.floating-cta.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.floating-cta:hover {
  background: var(--gold-300);
  transform: translateY(-2px) scale(1.05);
}

/* FAQ */
.faq-section {
  padding: 96px 0;
  background: var(--bg);
}

.faq-section .container {
  max-width: 1000px;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold-700);
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--ink-1);
  margin: 12px 0 16px;
  line-height: 1.35;
}

.section-desc {
  color: var(--ink-2);
  font-size: 16px;
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 48px;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--gold-300);
  box-shadow: var(--shadow-card);
}

.faq-item.open {
  border-color: var(--gold-300);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  min-height: 56px;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-1);
  transition: color 0.25s ease;
}

.faq-question i {
  color: var(--gold-500);
  font-size: 14px;
  flex-shrink: 0;
}

.faq-arrow {
  margin-left: auto;
  color: var(--ink-2);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-item.open .faq-question {
  color: var(--gold-700);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* 响应式 */
@media (min-width: 1200px) {
  .container {
    padding: 0 24px;
  }
}

@media (max-width: 1199px) {
  .main-nav { gap: 20px; }
  .main-nav a { font-size: 14px; }
  .header-actions { gap: 12px; }
}

@media (max-width: 991px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .search-box { display: none; }
  .header-cta { display: none; }
  .container { padding: 0 20px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-grid .related-card:not(:first-child) { display: none; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid .related-card:not(:first-child) { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .site-header, .header-inner { height: 64px; }
  .header-inner { gap: 12px; }
  .brand-text { font-size: 17px; }
  .brand-icon { width: 36px; height: 36px; font-size: 16px; border-radius: 10px; }
  .container { padding: 0 16px; }
  .article-body-wrap { padding: 28px 20px; }
  .article-title { font-size: 1.5rem; }
  .article-meta { gap: 12px; flex-direction: column; align-items: flex-start; }
  .breadcrumb { padding-top: 20px; }
  .article-content { font-size: 1rem; }
  .article-content h2 { font-size: 1.3rem; }
  .article-content h3 { font-size: 1.15rem; }
  .back-links { flex-direction: column; }
  .back-links a { justify-content: center; }
  .related-grid { grid-template-columns: 1fr; }
  .related-grid .related-card:not(:first-child) { display: flex; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom p { font-size: 13px; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn { width: 100%; }
  .floating-cta { right: 16px; bottom: 16px; width: 50px; height: 50px; font-size: 18px; }
  .faq-section { padding: 56px 0; }
}

@media (max-width: 520px) {
  .header-inner { gap: 8px; }
  .brand-text { font-size: 15px; letter-spacing: 0; }
}

/* 移动端底部悬浮条 */
@media (max-width: 767px) {
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 56px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(20,29,26,0.08);
    z-index: 100;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    gap: 12px;
  }
  .mobile-bottom-bar .bar-text {
    font-size: 13px;
    color: var(--ink-2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .mobile-bottom-bar .btn {
    height: 38px;
    padding: 0 20px;
    font-size: 14px;
    border-radius: 999px;
    flex-shrink: 0;
  }
  .floating-cta { display: none; }
  /* 底部预留空间 */
  .article-main { padding-bottom: 88px; }
  .site-cta { padding-bottom: 56px; }
}

@media (min-width: 768px) {
  .mobile-bottom-bar { display: none; }
}

/* roulang page: category1 */
:root {
  --bg: #F6F4EC;
  --surface: #FFFFFF;
  --ink-1: #1C2421;
  --ink-2: #53605A;
  --border: #E6DFD0;
  --gold-700: #8A6932;
  --gold-500: #B98A44;
  --gold-300: #D9B36A;
  --gold-100: #F1E7D3;
  --pine-900: #131C18;
  --pine-700: #20302A;
  --pine-500: #3A6B5C;
  --success: #2F7D5A;
  --warning: #B98A44;
  --danger: #A44A3F;
  --radius: 18px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(20,29,26,0.06);
  --shadow-hover: 0 12px 32px rgba(20,29,26,0.12);
  --shadow-btn: 0 8px 20px rgba(185,138,68,0.28);
  --container: 1200px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink-1);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
section { position: relative; }
main { display: block; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: all 0.3s ease;
  line-height: 1.5;
  white-space: nowrap;
}
.btn i { font-size: 0.9em; transition: transform 0.3s ease; }
.btn:hover i { transform: translateX(4px); }
.btn-gold {
  background: var(--gold-500);
  color: var(--ink-1);
}
.btn-gold:hover { background: var(--gold-300); transform: translateY(-2px); box-shadow: var(--shadow-btn); }
.btn-gold:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 2px; }
.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}
.btn-outline-light:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-outline {
  background: transparent;
  border-color: var(--gold-500);
  color: var(--gold-700);
}
.btn-outline:hover { background: var(--gold-100); }
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }

/* ── Header / Nav ── */
.site-header {
  background: var(--surface);
  height: 72px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(20,29,26,0.08);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(20,29,26,0.08); }
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gold-500);
  color: var(--ink-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.brand-text {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
  color: var(--ink-1);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.main-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  position: relative;
  transition: color 0.25s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold-500);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.main-nav a:hover { color: var(--gold-700); }
.main-nav a:hover::after { width: 24px; }
.main-nav a.active {
  color: var(--gold-700);
  font-weight: 600;
}
.main-nav a.active::after { width: 100%; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box i {
  position: absolute;
  left: 14px;
  color: var(--gold-500);
  font-size: 0.875rem;
  pointer-events: none;
}
.search-box input {
  width: 160px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0 16px 0 38px;
  font-size: 0.875rem;
  color: var(--ink-1);
  background: var(--surface);
  transition: all 0.35s ease;
  outline: none;
}
.search-box input:focus {
  width: 220px;
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(185,138,68,0.15);
}
.search-box input::placeholder { color: #A9A296; }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 1.2rem;
  color: var(--ink-1);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Category Hero ── */
.page-hero {
  height: 320px;
  background: linear-gradient(135deg, rgba(19,28,24,0.92) 0%, rgba(19,28,24,0.75) 55%, rgba(32,48,42,0.5) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(185,138,68,0.4);
}
.page-hero-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  width: 100%;
}
.page-hero-text { flex: 1 1 55%; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold-300);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--gold-300);
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.25;
  color: #fff;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.page-hero p {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.85);
  max-width: 520px;
  line-height: 1.8;
}
.page-hero-media {
  flex: 1 1 45%;
  display: flex;
  justify-content: flex-end;
}
.page-hero-media img {
  max-width: 420px;
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.15);
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* ── Page Body Grid ── */
.page-body { padding: 80px 0 40px; }
.body-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 48px;
  align-items: start;
}
.content-main { display: flex; flex-direction: column; gap: 56px; }
.sidebar { position: sticky; top: 96px; }

/* ── Intro Block ── */
.intro-block h2,
.feature-pair h2,
.process-block h2,
.sidebar h3 {
  font-family: var(--font-serif);
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--ink-1);
  line-height: 1.45;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 14px;
}
.intro-block h2::after,
.feature-pair h2::after,
.process-block h2::after,
.sidebar h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 3px;
  background: var(--gold-500);
  border-radius: 3px;
}
.intro-block p {
  font-size: 1rem;
  color: var(--ink-2);
  line-height: 2;
  margin-bottom: 16px;
}
.intro-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.highlight-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--gold-100);
  color: var(--gold-700);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.3s ease;
}
.highlight-tag:hover { background: var(--gold-300); }
.highlight-tag i { font-size: 0.8125rem; }

/* ── Feature Pair ── */
.feature-pair h2 { margin-bottom: 32px; }
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  margin-bottom: 48px;
}
.feature-row.reverse .feature-media { order: 2; }
.feature-row.reverse .feature-text { order: 1; }
.feature-media {
  overflow: hidden;
  border-radius: 20px;
  box-shadow: var(--shadow-card);
}
.feature-media img {
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
  transition: transform 0.4s ease;
}
.feature-media:hover img { transform: scale(1.03); }
.feature-text h3 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--ink-1);
  line-height: 1.5;
  margin-bottom: 12px;
}
.feature-text p {
  font-size: 0.9375rem;
  color: var(--ink-2);
  line-height: 1.9;
}

/* ── Process ── */
.process-block { margin-top: 8px; }
.process-steps {
  border-left: 2px solid var(--gold-300);
  margin: 24px 0 0 8px;
  padding-left: 0;
}
.process-step {
  position: relative;
  padding: 0 0 36px 36px;
}
.process-step:last-child { padding-bottom: 0; }
.process-step::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold-500);
  border: 3px solid var(--gold-100);
}
.step-label {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gold-700);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.process-step h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink-1);
  margin-bottom: 6px;
  line-height: 1.5;
}
.process-step p {
  font-size: 0.875rem;
  color: var(--ink-2);
  line-height: 1.8;
}

/* ── Sidebar Picks ── */
.sidebar { background: var(--surface); border-radius: 24px; padding: 28px; box-shadow: var(--shadow-card); }
.sidebar h3 { font-size: 1.25rem; margin-bottom: 24px; }
.pick-list { display: flex; flex-direction: column; gap: 20px; }
.pick-card {
  display: flex;
  gap: 16px;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all 0.3s ease;
  align-items: center;
}
.pick-card:hover {
  border-color: var(--gold-300);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.pick-card:hover .pick-img img { transform: scale(1.06); }
.pick-img {
  width: 110px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 12px;
}
.pick-img img {
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
  transition: transform 0.4s ease;
}
.pick-content { display: flex; flex-direction: column; gap: 6px; }
.badge {
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: var(--gold-100);
  color: var(--gold-700);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.6;
}
.pick-content h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-1);
  line-height: 1.5;
}
.pick-content p {
  font-size: 0.8125rem;
  color: var(--ink-2);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Sub Navigation ── */
.sub-nav {
  background: var(--gold-100);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.sub-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.sub-nav-text { font-size: 0.9375rem; color: var(--ink-2); }
.sub-nav-links { display: flex; gap: 12px; flex-wrap: wrap; }
.sub-nav-links a.btn { padding: 8px 20px; font-size: 0.875rem; }

/* ── FAQ ── */
.faq-section { padding: 80px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .eyebrow { justify-content: center; }
.section-head .eyebrow::before,
.section-head .eyebrow::after {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--gold-500);
}
.section-head .eyebrow::before { margin-right: 12px; }
.section-head .eyebrow::after { margin-left: 12px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  color: var(--ink-1);
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-head p { color: var(--ink-2); font-size: 1rem; max-width: 560px; margin: 0 auto; }
.faq-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item.active {
  border-color: var(--gold-300);
  box-shadow: 0 8px 24px rgba(185,138,68,0.1);
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 20px;
  text-align: left;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-1);
  line-height: 1.5;
  transition: color 0.3s ease;
}
.faq-question i.fa-circle-question {
  color: var(--gold-500);
  font-size: 1.0625rem;
  flex-shrink: 0;
}
.faq-question .faq-icon {
  margin-left: auto;
  color: var(--gold-500);
  font-size: 0.875rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon { transform: rotate(180deg); }
.faq-item.active .faq-question { color: var(--gold-700); }
.faq-answer {
  display: none;
  padding: 0 20px 20px 52px;
  font-size: 0.875rem;
  color: var(--ink-2);
  line-height: 1.85;
}
.faq-item.active .faq-answer { display: block; }

/* ── CTA ── */
.cta-section {
  background: var(--pine-900);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: 0.18;
}
.cta-inner {
  position: relative;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}
.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 16px;
}
.cta-inner p {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 32px;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
.site-footer {
  background: var(--pine-900);
  color: rgba(255,255,255,0.72);
  padding: 64px 0 0;
  border-top: 1px solid rgba(185,138,68,0.3);
}
.site-footer .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-icon {
  background: rgba(185,138,68,0.2);
  color: var(--gold-300);
  border: 1px solid rgba(185,138,68,0.3);
}
.footer-brand .brand-text {
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
}
.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.65);
  max-width: 380px;
}
.footer-col h4 {
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  transition: color 0.25s ease;
}
.footer-col ul a:hover { color: var(--gold-300); }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
}
.footer-contact i { color: var(--gold-300); width: 16px; text-align: center; }
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .container { padding: 0 32px; }
  .body-grid { gap: 36px; }
  .header-actions .search-box { display: none; }
}
@media (max-width: 991px) {
  .header-inner { gap: 16px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 8px;
    box-shadow: 0 20px 40px rgba(20,29,26,0.15);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border);
    margin: 0;
    z-index: 99;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a { font-size: 1.0625rem; padding: 12px 0; }
  .main-nav a::after { display: none; }
  .header-actions .btn-sm { display: none; }
  .header-actions {
    margin-left: auto;
    padding-right: 4px;
  }
  .body-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .page-hero-media { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .page-hero { height: 380px; text-align: left; }
  .page-hero-inner { padding: 40px 0; }
  .page-hero h1 { font-size: 2rem; }
  .page-hero p { font-size: 0.9375rem; }
  .page-body { padding: 48px 0 24px; }
  .feature-row { grid-template-columns: 1fr; gap: 24px; }
  .feature-row.reverse .feature-media { order: 0; }
  .feature-row.reverse .feature-text { order: 0; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .cta-buttons .btn { width: 100%; max-width: 320px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .sub-nav-inner { flex-direction: column; align-items: flex-start; }
  .pick-card { padding: 10px; }
  .pick-img { width: 92px; }
  .sidebar { padding: 20px; }
}
@media (max-width: 520px) {
  .brand-text { font-size: 1.0625rem; }
  .brand-icon { width: 36px; height: 36px; font-size: 18px; }
  .btn { padding: 12px 22px; font-size: 0.875rem; }
  .page-hero { height: 400px; }
  .process-step { padding: 0 0 32px 28px; }
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
      --bg: #F6F4EC;
      --surface: #FFFFFF;
      --ink-1: #1C2421;
      --ink-2: #53605A;
      --border: #E6DFD0;
      --gold-700: #8A6932;
      --gold-500: #B98A44;
      --gold-300: #D9B36A;
      --gold-100: #F1E7D3;
      --pine-900: #131C18;
      --pine-700: #20302A;
      --pine-500: #3A6B5C;
      --success: #3A6B5C;
      --warning: #B98A44;
      --danger: #B34A4A;
      --radius-card: 18px;
      --radius-btn: 999px;
      --radius-input: 10px;
      --shadow-card: 0 4px 20px rgba(20, 29, 26, 0.06);
      --shadow-card-hover: 0 12px 32px rgba(20, 29, 26, 0.12);
      --shadow-btn: 0 8px 20px rgba(185, 138, 68, 0.28);
      --font-title: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
      --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --spacer-section: 120px;
    }

    /* ===== 基础 Reset ===== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-body);
      background: var(--bg);
      color: var(--ink-1);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      color: var(--gold-700);
      text-decoration: none;
      transition: all 0.3s ease;
    }
    a:hover {
      color: var(--gold-500);
    }
    ul, ol {
      list-style: none;
    }
    h1, h2, h3, h4, h5 {
      font-family: var(--font-title);
      line-height: 1.35;
    }
    button {
      font-family: var(--font-body);
      cursor: pointer;
      border: none;
      background: none;
    }
    input {
      font-family: var(--font-body);
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== Header 导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: #FFFFFF;
      height: 72px;
      border-bottom: 1px solid rgba(20, 29, 26, 0.08);
      box-shadow: 0 2px 12px rgba(20, 29, 26, 0.04);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 32px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--pine-900);
      font-size: 20px;
      flex-shrink: 0;
    }
    .brand-text {
      font-family: var(--font-title);
      font-weight: 600;
      font-size: 20px;
      color: var(--ink-1);
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--ink-2);
      padding: 22px 0;
      position: relative;
      letter-spacing: 0.02em;
    }
    .main-nav a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--gold-500);
      transition: width 0.3s ease;
    }
    .main-nav a:hover {
      color: var(--gold-700);
    }
    .main-nav a:hover::after {
      width: 100%;
    }
    .main-nav a.active {
      color: var(--gold-700);
      font-weight: 600;
    }
    .main-nav a.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .search-box {
      position: relative;
    }
    .search-box input {
      width: 160px;
      height: 38px;
      border: 1px solid var(--gold-300);
      border-radius: var(--radius-btn);
      padding: 0 38px 0 16px;
      font-size: 14px;
      color: var(--ink-1);
      background: #FFFFFF;
      transition: all 0.3s ease;
      outline: none;
    }
    .search-box input:focus {
      width: 220px;
      border-color: var(--gold-500);
      box-shadow: 0 0 0 3px rgba(185, 138, 68, 0.15);
    }
    .search-box i {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--gold-500);
      font-size: 14px;
      pointer-events: none;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 15px;
      letter-spacing: 0.04em;
      padding: 12px 28px;
      transition: all 0.3s ease;
      border: 1px solid transparent;
      line-height: 1.4;
    }
    .btn-primary {
      background: var(--gold-500);
      color: var(--pine-900);
    }
    .btn-primary:hover {
      background: var(--gold-300);
      transform: translateY(-2px);
      box-shadow: var(--shadow-btn);
      color: var(--pine-900);
    }
    .btn-primary:focus-visible {
      outline: 2px solid var(--gold-500);
      outline-offset: 2px;
    }
    .btn-outline {
      background: transparent;
      border-color: var(--gold-500);
      color: var(--gold-500);
    }
    .btn-outline:hover {
      background: var(--gold-100);
      color: var(--gold-700);
      transform: translateY(-2px);
    }
    .btn-outline-light {
      background: transparent;
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      color: #FFFFFF;
      transform: translateY(-2px);
    }
    .btn-light {
      background: var(--gold-300);
      color: var(--pine-900);
    }
    .btn-light:hover {
      background: #E8C97F;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(217, 179, 106, 0.3);
      color: var(--pine-900);
    }
    .header-cta {
      height: 42px;
      padding: 0 24px;
      font-size: 14px;
    }
    /* 汉堡按钮 */
    .hamburger {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 8px;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--ink-1);
      border: 1px solid var(--border);
      background: var(--surface);
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      width: 100%;
      height: calc(100vh - 72px);
      background: var(--pine-900);
      z-index: 99;
      padding: 40px 32px;
      flex-direction: column;
      gap: 8px;
      overflow-y: auto;
    }
    .mobile-drawer.open {
      display: flex;
    }
    .mobile-drawer a {
      font-family: var(--font-title);
      font-size: 24px;
      font-weight: 600;
      color: #FFFFFF;
      padding: 16px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .mobile-drawer a:hover {
      color: var(--gold-300);
    }
    .mobile-drawer a.active {
      color: var(--gold-300);
    }
    .mobile-drawer .btn {
      margin-top: 24px;
      justify-content: center;
    }

    /* ===== 分类页 Hero 横幅 ===== */
    .category-hero {
      background: linear-gradient(135deg, var(--pine-900) 0%, var(--pine-700) 100%);
      padding: 72px 0 64px;
      position: relative;
      overflow: hidden;
      color: #FFFFFF;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      top: 0;
      right: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      z-index: 0;
    }
    .category-hero::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, rgba(19, 28, 24, 0.9) 0%, rgba(19, 28, 24, 0.6) 60%, rgba(19, 28, 24, 0.3) 100%);
      z-index: 1;
    }
    .category-hero .container {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 48px;
    }
    .category-hero-content {
      flex: 1;
    }
    .category-hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(185, 138, 68, 0.2);
      border: 1px solid var(--gold-500);
      border-radius: var(--radius-btn);
      padding: 6px 16px;
      font-size: 13px;
      letter-spacing: 0.1em;
      color: var(--gold-300);
      margin-bottom: 20px;
    }
    .category-hero h1 {
      font-size: clamp(2rem, 3.5vw, 3rem);
      font-weight: 600;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .category-hero h1 .gold-line {
      display: inline-block;
      width: 48px;
      height: 3px;
      background: var(--gold-500);
      vertical-align: middle;
      margin: 0 16px;
      border-radius: 2px;
    }
    .category-hero p {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.85);
      max-width: 600px;
      line-height: 1.8;
    }
    .category-hero .hero-meta {
      display: flex;
      gap: 24px;
      margin-top: 24px;
    }
    .hero-meta-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
    }
    .hero-meta-item i {
      color: var(--gold-300);
    }
    .category-hero-media {
      flex: 0 0 380px;
      height: 240px;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(217, 179, 106, 0.3);
      position: relative;
      z-index: 2;
    }
    .category-hero-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-wrap {
      padding: 20px 0 0;
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--ink-2);
    }
    .breadcrumb a {
      color: var(--ink-2);
    }
    .breadcrumb a:hover {
      color: var(--gold-700);
    }
    .breadcrumb i {
      font-size: 12px;
      color: var(--gold-500);
    }
    .breadcrumb .current {
      color: var(--gold-700);
      font-weight: 500;
    }

    /* ===== 分类页正文区域 ===== */
    .category-main {
      padding: 64px 0 var(--spacer-section);
    }
    .category-main .container {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 48px;
      align-items: start;
    }
    .category-content {
      background: var(--surface);
      border-radius: var(--radius-card);
      padding: 48px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border);
    }
    .category-content .section-tag {
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.12em;
      color: var(--gold-700);
      text-transform: uppercase;
      margin-bottom: 12px;
      display: block;
    }
    .category-content h2 {
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--ink-1);
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 16px;
    }
    .category-content h2::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 56px;
      height: 3px;
      background: var(--gold-500);
      border-radius: 2px;
    }
    .category-content h3 {
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--ink-1);
      margin: 32px 0 16px;
    }
    .category-content p {
      color: var(--ink-2);
      line-height: 1.9;
      margin-bottom: 20px;
      font-size: 15px;
    }
    .content-image {
      border-radius: 14px;
      overflow: hidden;
      margin: 32px 0;
      position: relative;
    }
    .content-image img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .content-image:hover img {
      transform: scale(1.03);
    }
    .content-image figcaption {
      font-size: 13px;
      color: var(--ink-2);
      padding: 12px 16px;
      background: var(--bg);
      text-align: center;
    }
    .feature-list {
      margin: 24px 0;
    }
    .feature-list li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      margin-bottom: 16px;
      font-size: 15px;
      color: var(--ink-2);
      line-height: 1.7;
    }
    .feature-list li i {
      color: var(--gold-500);
      font-size: 16px;
      margin-top: 4px;
      flex-shrink: 0;
    }
    .step-flow {
      margin: 32px 0;
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .step-item {
      display: flex;
      gap: 20px;
      position: relative;
      padding-bottom: 28px;
    }
    .step-item:not(:last-child)::before {
      content: "";
      position: absolute;
      left: 19px;
      top: 42px;
      bottom: 0;
      width: 2px;
      background: var(--gold-300);
    }
    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--gold-100);
      border: 1px solid var(--gold-500);
      color: var(--gold-700);
      font-family: var(--font-title);
      font-weight: 700;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      z-index: 1;
    }
    .step-body {
      padding-top: 4px;
    }
    .step-body h4 {
      font-family: var(--font-body);
      font-size: 15px;
      font-weight: 600;
      color: var(--ink-1);
      margin-bottom: 6px;
    }
    .step-body p {
      font-size: 14px;
      color: var(--ink-2);
      margin-bottom: 0;
      line-height: 1.7;
    }
    .tips-box {
      background: var(--gold-100);
      border-left: 4px solid var(--gold-500);
      border-radius: 0 12px 12px 0;
      padding: 20px 24px;
      margin: 28px 0;
    }
    .tips-box h4 {
      font-size: 15px;
      color: var(--gold-700);
      margin-bottom: 8px;
      font-family: var(--font-body);
      font-weight: 600;
    }
    .tips-box p {
      font-size: 14px;
      color: var(--ink-2);
      margin-bottom: 0;
    }

    /* 右侧精选 */
    .category-sidebar {
      position: sticky;
      top: 100px;
    }
    .sidebar-card {
      background: var(--surface);
      border-radius: var(--radius-card);
      padding: 32px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
      margin-bottom: 32px;
    }
    .sidebar-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--ink-1);
      margin-bottom: 8px;
      font-family: var(--font-title);
    }
    .sidebar-card .sidebar-sub {
      font-size: 13px;
      color: var(--ink-2);
      margin-bottom: 24px;
    }
    .pick-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .pick-list li {
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid var(--border);
      background: var(--surface);
      transition: all 0.3s ease;
    }
    .pick-list li:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-3px);
      border-color: var(--gold-300);
    }
    .pick-card {
      display: block;
    }
    .pick-card .pick-img {
      width: 100%;
      height: 140px;
      overflow: hidden;
      position: relative;
    }
    .pick-card .pick-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .pick-card:hover .pick-img img {
      transform: scale(1.04);
    }
    .pick-card .pick-body {
      padding: 16px;
    }
    .pick-badge {
      display: inline-block;
      background: var(--gold-100);
      color: var(--gold-700);
      font-size: 12px;
      padding: 3px 10px;
      border-radius: var(--radius-btn);
      font-weight: 500;
      margin-bottom: 10px;
    }
    .pick-card h4 {
      font-family: var(--font-body);
      font-size: 15px;
      font-weight: 600;
      color: var(--ink-1);
      line-height: 1.5;
      margin-bottom: 8px;
      transition: color 0.3s ease;
    }
    .pick-card:hover h4 {
      color: var(--gold-700);
    }
    .pick-card .pick-time {
      font-size: 13px;
      color: var(--ink-2);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .pick-card .pick-time i {
      color: var(--gold-500);
      font-size: 12px;
    }
    .sidebar-contact {
      background: var(--pine-700);
      border: none;
      color: #FFFFFF;
    }
    .sidebar-contact h3 {
      color: var(--gold-300);
    }
    .sidebar-contact .sidebar-sub {
      color: rgba(255, 255, 255, 0.65);
    }
    .sidebar-contact .contact-info {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .contact-info li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.8);
    }
    .contact-info li i {
      width: 32px;
      height: 32px;
      background: rgba(217, 179, 106, 0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--gold-300);
      font-size: 14px;
      flex-shrink: 0;
    }
    .sidebar-contact .btn {
      margin-top: 24px;
      width: 100%;
    }

    /* ===== CTA 区块 ===== */
    .category-cta {
      background: linear-gradient(135deg, var(--pine-900), var(--pine-700));
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }
    .category-cta::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      opacity: 0.15;
    }
    .category-cta .container {
      position: relative;
      z-index: 2;
      text-align: center;
    }
    .category-cta h2 {
      font-size: clamp(1.75rem, 3vw, 2.4rem);
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .category-cta p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 600px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }
    .category-cta .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== 相关分类入口 ===== */
    .related-categories {
      padding: 80px 0;
    }
    .related-categories .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .related-categories .section-tag {
      display: block;
      font-size: 13px;
      letter-spacing: 0.12em;
      color: var(--gold-700);
      margin-bottom: 8px;
      font-weight: 600;
    }
    .related-categories h2 {
      font-size: clamp(1.75rem, 3vw, 2.2rem);
    }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .related-item {
      background: var(--surface);
      border-radius: var(--radius-card);
      padding: 32px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
      display: block;
      position: relative;
      overflow: hidden;
    }
    .related-item::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
      transform: scaleX(0);
      transition: transform 0.4s ease;
      transform-origin: left;
    }
    .related-item:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .related-item:hover::before {
      transform: scaleX(1);
    }
    .related-item .related-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--gold-100);
      color: var(--gold-700);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .related-item h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--ink-1);
    }
    .related-item p {
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .related-item .link-more {
      font-size: 14px;
      color: var(--gold-700);
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .related-item .link-more i {
      transition: transform 0.3s ease;
    }
    .related-item:hover .link-more i {
      transform: translateX(4px);
    }

    /* ===== FAQ 区块 ===== */
    .category-faq {
      padding: 80px 0;
      background: var(--surface);
      border-top: 1px solid var(--border);
    }
    .category-faq .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .category-faq .section-tag {
      display: block;
      font-size: 13px;
      letter-spacing: 0.12em;
      color: var(--gold-700);
      margin-bottom: 8px;
      font-weight: 600;
    }
    .category-faq h2 {
      font-size: clamp(1.75rem, 3vw, 2.2rem);
    }
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      max-width: 1000px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .faq-item:hover {
      border-color: var(--gold-300);
    }
    .faq-item.open {
      border-color: var(--gold-500);
    }
    .faq-question {
      width: 100%;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      font-size: 15px;
      font-weight: 600;
      color: var(--ink-1);
      font-family: var(--font-body);
    }
    .faq-question .faq-q {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .faq-question .faq-q i {
      color: var(--gold-500);
      font-size: 16px;
    }
    .faq-question .faq-toggle {
      font-size: 14px;
      color: var(--gold-500);
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }
    .faq-item.open .faq-toggle {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.85;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 22px 20px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--pine-900);
      color: rgba(255, 255, 255, 0.7);
      padding-top: 64px;
    }
    .footer-top {
      display: flex;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand {
      flex: 2;
    }
    .footer-brand .brand {
      margin-bottom: 16px;
    }
    .footer-brand .brand-text {
      color: #FFFFFF;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      max-width: 400px;
    }
    .footer-col {
      flex: 1;
    }
    .footer-col h4 {
      color: var(--gold-300);
      font-family: var(--font-body);
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-col a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
    }
    .footer-col a:hover {
      color: var(--gold-300);
    }
    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
    }
    .footer-contact i {
      color: var(--gold-500);
      width: 16px;
      text-align: center;
    }
    .footer-bottom {
      padding: 24px 0;
      text-align: center;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: 8px;
    }
    .footer-bottom p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.5);
    }

    /* ===== 浮动 CTA ===== */
    .floating-cta {
      position: fixed;
      bottom: 32px;
      right: 32px;
      z-index: 90;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .floating-cta .btn {
      box-shadow: 0 8px 24px rgba(19, 28, 24, 0.3);
      padding: 14px 28px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1199px) {
      :root {
        --spacer-section: 80px;
      }
      .header-actions .search-box {
        display: none;
      }
      .category-hero-media {
        flex-basis: 320px;
        height: 200px;
      }
    }
    @media (max-width: 991px) {
      .main-nav, .header-actions .btn {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .category-main .container {
        grid-template-columns: 1fr;
      }
      .category-sidebar {
        position: static;
      }
      .category-hero {
        padding: 56px 0 48px;
      }
      .category-hero .container {
        flex-direction: column;
        align-items: flex-start;
      }
      .category-hero-media {
        flex-basis: auto;
        width: 100%;
        height: 220px;
        margin-top: 8px;
      }
      .related-grid {
        grid-template-columns: 1fr 1fr;
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        flex-direction: column;
        gap: 32px;
      }
      .floating-cta .btn-text {
        display: none;
      }
      .floating-cta .btn {
        padding: 14px 20px;
        border-radius: 50%;
      }
      .floating-cta .btn i {
        margin: 0;
      }
    }
    @media (max-width: 767px) {
      :root {
        --spacer-section: 56px;
      }
      .header-inner {
        padding: 0 16px;
      }
      .container {
        padding: 0 16px;
      }
      .category-content {
        padding: 28px 20px;
      }
      .category-hero {
        padding: 40px 0 32px;
      }
      .category-hero h1 {
        font-size: 1.8rem;
      }
      .category-hero h1 .gold-line {
        margin: 0 8px;
      }
      .category-hero-media {
        height: 180px;
      }
      .related-grid {
        grid-template-columns: 1fr;
      }
      .content-image img {
        height: 200px;
      }
      .category-cta {
        padding: 56px 0;
      }
      .btn {
        padding: 12px 22px;
        font-size: 14px;
      }
      .floating-cta {
        bottom: 16px;
        right: 16px;
        left: 16px;
        justify-content: center;
      }
      .floating-cta .btn {
        width: 100%;
        border-radius: var(--radius-btn);
        padding: 14px 24px;
        justify-content: center;
      }
      .floating-cta .btn-text {
        display: inline;
      }
      .floating-cta .btn i {
        margin-right: 8px;
      }
    }

/* roulang page: category2 */
:root {
  --bg: #F6F4EC;
  --surface: #FFFFFF;
  --ink-1: #1C2421;
  --ink-2: #53605A;
  --border: #E6DFD0;
  --gold-700: #8A6932;
  --gold-500: #B98A44;
  --gold-300: #D9B36A;
  --gold-100: #F1E7D3;
  --pine-900: #131C18;
  --pine-700: #20302A;
  --pine-500: #3A6B5C;
  --radius-card: 18px;
  --radius-btn: 999px;
  --radius-input: 10px;
  --shadow-card: 0 4px 20px rgba(20,29,26,0.06);
  --shadow-hover: 0 12px 32px rgba(20,29,26,0.12);
  --shadow-btn: 0 8px 20px rgba(185,138,68,0.28);
  --font-serif: "Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--font-sans); background:var(--bg); color:var(--ink-1); line-height:1.8; font-size:16px; -webkit-font-smoothing:antialiased; }
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
ul, ol { list-style:none; }
button, input { font-family:inherit; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline:2px solid var(--gold-500); outline-offset:2px; }

/* Header */
.site-header { position:sticky; top:0; z-index:100; height:72px; background:#fff; border-bottom:1px solid rgba(20,29,26,0.08); transition:box-shadow .3s ease; }
.site-header.scrolled { box-shadow:0 6px 24px rgba(20,29,26,0.08); }
.header-inner { height:72px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand { display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-icon { width:40px; height:40px; border-radius:12px; background:var(--gold-500); display:flex; align-items:center; justify-content:center; color:var(--pine-900); font-size:18px; }
.brand-text { font-family:var(--font-serif); font-weight:600; font-size:20px; color:var(--ink-1); white-space:nowrap; }
.main-nav { display:flex; align-items:center; gap:28px; }
.main-nav a { font-size:15px; color:var(--ink-1); font-weight:400; position:relative; padding:8px 2px; transition:color .25s; }
.main-nav a::after { content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--gold-500); transition:width .25s; }
.main-nav a:hover { color:var(--gold-700); }
.main-nav a:hover::after { width:100%; }
.main-nav a.active { color:var(--gold-700); font-weight:500; }
.main-nav a.active::after { width:100%; }
.header-actions { display:flex; align-items:center; gap:16px; }
.search-box { width:160px; height:38px; display:flex; align-items:center; gap:8px; background:#fff; border:1px solid var(--gold-300); border-radius:999px; padding:0 14px; transition:width .3s ease,border-color .3s ease,box-shadow .3s ease; }
.search-box i { color:var(--gold-500); font-size:14px; }
.search-box input { border:none; outline:none; width:100%; font-size:14px; color:var(--ink-1); background:transparent; }
.search-box input::placeholder { color:#9AA29E; }
.search-box:focus-within { width:220px; border-color:var(--gold-500); box-shadow:0 0 0 3px rgba(185,138,68,0.18); }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; font-size:15px; font-weight:600; letter-spacing:0.04em; border-radius:999px; padding:0 28px; height:42px; border:1px solid transparent; cursor:pointer; transition:all .3s ease; }
.btn-gold { background:var(--gold-500); color:var(--pine-900); }
.btn-gold:hover { background:var(--gold-300); transform:translateY(-2px); box-shadow:var(--shadow-btn); }
.btn-light { background:var(--gold-300); color:var(--pine-900); }
.btn-light:hover { background:#E8C97F; transform:translateY(-2px); box-shadow:var(--shadow-btn); }
.btn-white-outline { background:transparent; border-color:rgba(255,255,255,0.75); color:#fff; }
.btn-white-outline:hover { background:rgba(255,255,255,0.12); border-color:#fff; }
.nav-toggle { display:none; background:none; border:none; font-size:22px; color:var(--ink-1); cursor:pointer; }
.mobile-nav-cta { display:none; }

/* Category Hero */
.category-hero { background:linear-gradient(120deg,rgba(19,28,24,0.93) 0%,rgba(32,48,42,0.82) 55%,rgba(19,28,24,0.62) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat; min-height:320px; padding:64px 0; border-bottom:3px solid var(--gold-500); }
.category-hero-inner { display:flex; align-items:center; gap:60px; }
.category-hero-text { flex:1; }
.category-hero-img { flex:0 0 300px; }
.category-hero-img img { border-radius:20px; box-shadow:0 16px 48px rgba(0,0,0,0.3); aspect-ratio:4/3; object-fit:cover; }
.eyebrow { display:inline-block; font-size:12px; letter-spacing:0.1em; color:var(--gold-300); text-transform:uppercase; margin-bottom:12px; font-weight:500; }
.category-hero h1 { font-family:var(--font-serif); font-size:clamp(2.2rem,4vw,3rem); color:#fff; line-height:1.25; margin-bottom:12px; }
.category-hero p { font-size:18px; color:rgba(255,255,255,0.85); margin-bottom:24px; max-width:480px; }
.hero-hero-cta { display:flex; gap:16px; flex-wrap:wrap; }

/* Category Body */
.category-body { padding:72px 0 40px; }
.two-col { display:grid; grid-template-columns:7fr 5fr; gap:56px; }
.cat-main { min-width:0; }
.cat-side { min-width:0; }
.cat-block { margin-bottom:52px; }
.cat-block h2 { font-family:var(--font-serif); font-size:clamp(1.4rem,2.4vw,1.9rem); line-height:1.4; color:var(--ink-1); margin-bottom:16px; position:relative; padding-left:20px; }
.cat-block h2::before { content:''; position:absolute; left:0; top:0.35em; width:4px; height:1em; background:var(--gold-500); border-radius:2px; }
.cat-block p { color:var(--ink-2); font-size:16px; line-height:1.95; margin-bottom:14px; }
.cat-block .lead-img { width:100%; aspect-ratio:16/9; object-fit:cover; border-radius:20px; margin-top:16px; }

/* Benefit List */
.benefit-list { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:20px; }
.benefit-item { background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:20px; display:flex; gap:14px; transition:all .3s ease; }
.benefit-item:hover { box-shadow:var(--shadow-card); border-color:var(--gold-300); }
.benefit-item i { color:var(--gold-500); font-size:20px; margin-top:3px; flex-shrink:0; }
.benefit-item h3 { font-size:16px; margin-bottom:4px; color:var(--ink-1); }
.benefit-item p { font-size:14px; color:var(--ink-2); line-height:1.7; margin:0; }

/* Tier List */
.tier-list { display:flex; flex-direction:column; gap:12px; margin-top:20px; }
.tier-row { display:flex; align-items:center; gap:20px; background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:18px 24px; transition:all .3s ease; }
.tier-row:hover { border-color:var(--gold-300); box-shadow:var(--shadow-card); }
.tier-name { flex:0 0 120px; font-weight:600; font-size:16px; color:var(--pine-700); font-family:var(--font-serif); }
.tier-desc { flex:1; color:var(--ink-2); font-size:14px; line-height:1.7; }
.tier-flag { font-size:13px; color:var(--gold-700); background:var(--gold-100); border-radius:999px; padding:3px 12px; white-space:nowrap; }

/* Process Steps */
.process-steps { display:flex; align-items:flex-start; justify-content:space-between; margin-top:32px; position:relative; flex-wrap:wrap; gap:16px; }
.process-steps::before { content:''; position:absolute; top:24px; left:8%; right:8%; height:2px; background:var(--gold-300); }
.process-step { position:relative; z-index:1; flex:1; text-align:center; min-width:110px; }
.step-num { width:48px; height:48px; border-radius:50%; background:var(--gold-500); color:var(--pine-900); font-weight:700; display:flex; align-items:center; justify-content:center; margin:0 auto 12px; font-size:18px; position:relative; box-shadow:0 4px 12px rgba(185,138,68,0.3); }
.process-step h3 { font-size:15px; color:var(--ink-1); margin-bottom:4px; }
.process-step p { font-size:13px; color:var(--ink-2); margin:0; line-height:1.6; }

/* Side Cards */
.side-card-heading { display:flex; align-items:center; gap:8px; font-family:var(--font-serif); font-size:20px; font-weight:600; margin-bottom:24px; padding-bottom:12px; border-bottom:2px solid var(--gold-300); }
.side-card-heading i { color:var(--gold-500); }
.side-cards { display:flex; flex-direction:column; gap:16px; }
.side-card { display:flex; align-items:stretch; background:var(--surface); border:1px solid var(--border); border-radius:16px; overflow:hidden; transition:all .3s ease; }
.side-card:hover { box-shadow:var(--shadow-hover); border-color:var(--gold-300); transform:translateY(-2px); }
.side-card-img { flex:0 0 96px; }
.side-card-img img { width:96px; height:100%; object-fit:cover; }
.side-card-body { padding:12px 14px; display:flex; flex-direction:column; justify-content:center; gap:4px; }
.side-card-body h3 { font-size:15px; font-weight:600; color:var(--ink-1); }
.side-card-body p { font-size:13px; color:var(--ink-2); line-height:1.6; margin:0; }
.side-card-link { font-size:13px; color:var(--gold-700); font-weight:500; display:inline-flex; align-items:center; gap:4px; transition:gap .3s ease; }
.side-card-link i { font-size:11px; transition:transform .3s ease; }
.side-card:hover .side-card-link i { transform:translateX(4px); }

/* FAQ */
.faq-section { padding:72px 0; }
.section-head { text-align:center; margin-bottom:48px; }
.section-head .eyebrow { color:var(--gold-700); }
.section-head h2 { font-family:var(--font-serif); font-size:clamp(1.75rem,3vw,2.4rem); color:var(--ink-1); }
.section-head p { color:var(--ink-2); font-size:16px; margin-top:8px; max-width:560px; margin-left:auto; margin-right:auto; }
.faq-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.faq-item { background:var(--surface); border:1px solid var(--border); border-radius:16px; transition:border-color .3s ease; }
.faq-item.open { border-color:var(--gold-300); }
.faq-q { display:flex; align-items:center; gap:12px; padding:18px 20px; cursor:pointer; font-size:16px; font-weight:600; color:var(--ink-1); }
.faq-q i { color:var(--gold-500); font-size:14px; transition:transform .3s ease; }
.faq-item.open .faq-q i { transform:rotate(180deg); }
.faq-a { padding:0 20px; max-height:0; overflow:hidden; transition:max-height .3s ease,padding .3s ease; }
.faq-item.open .faq-a { max-height:320px; padding-bottom:20px; }
.faq-a p { font-size:15px; color:var(--ink-2); line-height:1.85; margin:0; }

/* Category Footer Links */
.cat-footer-links { padding:48px 0; text-align:center; border-top:1px solid var(--border); }
.cat-footer-links a { margin:0 12px; color:var(--gold-700); font-weight:500; }
.cat-footer-links a:hover { color:var(--gold-500); }
.cat-footer-links .sep { color:var(--border); }

/* CTA */
.cta-section { background:linear-gradient(120deg,rgba(19,28,24,0.95),rgba(32,48,42,0.85)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat; padding:80px 0; text-align:center; }
.cta-section h2 { font-family:var(--font-serif); font-size:clamp(1.75rem,3vw,2.4rem); color:#fff; margin-bottom:16px; }
.cta-section p { color:rgba(255,255,255,0.8); font-size:17px; margin-bottom:32px; max-width:600px; margin-left:auto; margin-right:auto; }
.cta-actions { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }

/* Footer */
.site-footer { background:var(--pine-900); color:rgba(255,255,255,0.8); padding:64px 0 0; }
.footer-top { display:grid; grid-template-columns:3fr 2fr 2fr; gap:48px; padding-bottom:40px; }
.footer-brand .brand { margin-bottom:16px; }
.footer-brand .brand-text { color:#fff; }
.footer-brand p { font-size:14px; line-height:1.8; color:rgba(255,255,255,0.65); max-width:360px; }
.footer-col h4 { font-size:16px; color:#fff; margin-bottom:16px; font-weight:600; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul a { color:rgba(255,255,255,0.65); font-size:14px; transition:color .3s ease; }
.footer-col ul a:hover { color:var(--gold-300); }
.footer-contact li { display:flex; align-items:center; gap:10px; color:rgba(255,255,255,0.65); font-size:14px; }
.footer-contact i { color:var(--gold-500); width:16px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.1); padding:20px 0; text-align:center; font-size:13px; color:rgba(255,255,255,0.5); }

/* Responsive */
@media (max-width:1200px) {
  .container { padding:0 20px; }
}
@media (max-width:992px) {
  .search-box { display:none; }
  .main-nav { display:none; position:absolute; top:72px; left:0; right:0; background:#fff; flex-direction:column; align-items:stretch; gap:8px; padding:24px; border-bottom:1px solid var(--border); box-shadow:0 16px 32px rgba(0,0,0,0.08); }
  .main-nav.open { display:flex; }
  .main-nav a { padding:12px 8px; font-size:17px; border-bottom:1px solid var(--border); }
  .main-nav a::after { display:none; }
  .main-nav a.active { background:var(--gold-100); border-radius:12px; }
  .mobile-nav-cta { display:inline-flex; margin-top:16px; justify-content:center; border:none; }
  .nav-toggle { display:block; }
  .header-actions { display:none; }
  .two-col { grid-template-columns:1fr; gap:40px; }
  .category-hero-inner { flex-direction:column; gap:24px; }
  .category-hero { min-height:auto; padding:48px 0; }
  .category-hero-img { flex:auto; width:100%; }
  .faq-grid { grid-template-columns:1fr; }
  .footer-top { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .container { padding:0 16px; }
  .brand-text { font-size:17px; }
  .category-hero h1 { font-size:2rem; }
  .category-hero p { font-size:16px; }
  .benefit-list { grid-template-columns:1fr; }
  .tier-row { flex-direction:column; align-items:flex-start; gap:8px; }
  .tier-flag { align-self:flex-start; }
  .process-steps { flex-direction:column; align-items:stretch; text-align:left; }
  .process-steps::before { display:none; }
  .process-step { text-align:left; display:flex; align-items:center; gap:14px; min-width:0; }
  .step-num { margin:0; flex-shrink:0; }
  .process-step h3 { margin-bottom:0; }
  .process-step p { flex:1; }
  .footer-top { grid-template-columns:1fr; gap:32px; }
  .cta-section { padding:56px 0; }
  .side-card { align-items:stretch; }
  .side-card-img { flex:0 0 84px; }
  .side-card-img img { width:84px; }
  .btn { width:auto; }
  .hero-hero-cta .btn { flex:1; justify-content:center; }
}