/* roulang page: index */
:root {
  --primary: #6B4A2F;
  --primary-dark: #4F3520;
  --accent: #B8823D;
  --accent-light: #C08A3E;
  --paper: #F6F1E7;
  --card-bg: #FFFFFF;
  --alt-bg: #EFE8DC;
  --dark: #29241E;
  --dark-text: #F0E9DD;
  --text: #2E2A24;
  --text-weak: #7A7369;
  --border: rgba(41, 36, 30, 0.10);
  --border-strong: rgba(107, 74, 47, 0.30);
  --success: #4A6B4F;
  --negative: #9A958C;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(41, 36, 30, 0.05), 0 8px 24px rgba(41, 36, 30, 0.04);
  --shadow-hover: 0 4px 8px rgba(41, 36, 30, 0.06), 0 16px 32px rgba(41, 36, 30, 0.08);
  --container: 1200px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, Georgia, serif;
  --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --section-space: 88px;
}
*, *::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: 1.7;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 16px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.3; color: var(--text); }
h1 { font-size: 42px; font-weight: 900; letter-spacing: -0.01em; }
h2 { font-size: 28px; font-weight: 700; }
h3 { font-size: 20px; font-weight: 600; }
:focus-visible { outline: 3px solid rgba(107, 74, 47, 0.25); outline-offset: 2px; border-radius: 4px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all .25s ease;
  cursor: pointer;
  text-align: center;
  line-height: 1.4;
  min-height: 44px;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--paper);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(107, 74, 47, 0.2);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(107, 74, 47, 0.06);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--accent);
  color: var(--dark);
}
.btn-dark:hover {
  background: var(--accent-light);
  color: var(--dark);
  transform: translateY(-2px);
}
.btn-lg { padding: 14px 36px; font-size: 16px; }

.section { padding: var(--section-space) 0; }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-index::before {
  content: '';
  width: 3px;
  height: 28px;
  background: var(--primary);
  border-radius: 2px;
}
.section-desc { color: var(--text-weak); margin-top: 14px; font-size: 16px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--primary);
  white-space: nowrap;
}
.logo:hover { color: var(--primary); }
.logo span {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-weak);
  margin-top: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: 24px;
  flex: 1;
}
.main-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 0;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .25s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.nav-cta { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav-cta .btn { padding: 9px 20px; font-size: 14px; min-height: 40px; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: 8px;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

/* Hero */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(246, 241, 231, 0.92);
}
.hero-banner {
  position: relative;
  padding: 64px 0 24px;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(107, 74, 47, 0.10);
  color: var(--primary);
  border: 1px solid rgba(107, 74, 47, 0.18);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.hero h1 { margin-bottom: 18px; }
.hero-desc {
  color: var(--text-weak);
  font-size: 16px;
  max-width: 620px;
  margin-bottom: 28px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 32px 0 56px;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  position: relative;
  box-shadow: var(--shadow);
  transition: border-color .25s ease, box-shadow .25s ease;
}
.stat-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}
.stat-card .stat-num {
  font-size: 34px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  display: block;
  line-height: 1.2;
}
.stat-card:hover .stat-num { color: var(--accent-light); }
.stat-card .stat-label { display: block; font-size: 14px; color: var(--text-weak); margin-top: 6px; }
.stat-card .stat-index {
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-weak);
  opacity: 0.6;
}
.stat-card .stat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(107, 74, 47, 0.25);
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}

/* Story */
.story { background: var(--card-bg); }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.story-text .section-index { margin-bottom: 16px; }
.story-text h2 { margin-bottom: 20px; font-size: 30px; }
.story-text p { color: var(--text-weak); margin-bottom: 16px; }
.story-text p:last-child { margin-bottom: 0; }
.story-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  position: relative;
}
.story-image img {
  display: block;
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.story-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

/* Services */
.services { background: var(--paper); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all .25s ease;
  position: relative;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-strong);
}
.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(107, 74, 47, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: background .25s ease;
}
.service-card:hover .service-icon { background: rgba(107, 74, 47, 0.15); }
.service-icon svg { width: 28px; height: 28px; stroke: var(--primary); }
.service-card h3 { margin-bottom: 10px; }
.service-card p { color: var(--text-weak); font-size: 14px; margin-bottom: 16px; line-height: 1.6; }
.service-card .card-divider { height: 1px; background: var(--border); margin-bottom: 14px; }
.service-badges { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  display: inline-block;
  background: rgba(107, 74, 47, 0.08);
  color: var(--primary);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  transition: background .25s ease, color .25s ease;
}
.badge:hover { background: var(--primary); color: var(--paper); }

/* Featured */
.featured { background: var(--alt-bg); }
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.featured-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .25s ease;
}
.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-strong);
}
.featured-image img {
  display: block;
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}
.featured-content { padding: 24px; }
.featured-content h3 { margin-bottom: 8px; font-size: 18px; }
.featured-content p { color: var(--text-weak); font-size: 14px; margin-bottom: 16px; }
.featured-meta { display: flex; justify-content: space-between; align-items: center; }
.featured-date { font-size: 13px; color: var(--text-weak); }

/* Compare */
.compare { background: var(--paper); }
.compare-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.compare-stat { text-align: center; }
.compare-stat .big {
  font-size: 40px;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.compare-stat .small { color: rgba(240, 233, 221, 0.8); font-size: 14px; margin-top: 6px; }
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  position: relative;
}
.compare-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.compare-card.left {
  background: #F0EDE8;
}
.compare-card.right {
  background: var(--card-bg);
  border-color: rgba(107, 74, 47, 0.12);
}
.compare-head { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.compare-head h3 { font-size: 18px; }
.compare-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.compare-icon.left { background: rgba(154, 149, 140, 0.15); color: var(--negative); }
.compare-icon.right { background: rgba(74, 107, 79, 0.1); color: var(--success); }
.compare-list { list-style: none; }
.compare-list li {
  position: relative;
  padding: 8px 0 8px 32px;
  font-size: 15px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.compare-list li:last-child { border-bottom: none; }
.compare-list li::before {
  position: absolute;
  left: 0;
  top: 10px;
  width: 20px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
}
.compare-card.left .compare-list li::before { content: '✕'; color: var(--negative); }
.compare-card.right .compare-list li::before { content: '✓'; color: var(--success); }
.vs-badge {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  background: var(--dark);
  color: var(--paper);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  z-index: 2;
  border: 3px solid var(--paper);
  box-shadow: var(--shadow);
}

/* Testimonials */
.testimonials { background: var(--card-bg); }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 6px;
  right: 16px;
  font-family: var(--font-serif);
  font-size: 56px;
  color: rgba(107, 74, 47, 0.12);
  line-height: 1;
  pointer-events: none;
}
.testimonial-card p { font-size: 15px; color: var(--text); margin-bottom: 16px; }
.testimonial-author { font-size: 14px; color: var(--text-weak); font-weight: 500; }
.testimonial-author::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  margin-right: 8px;
  vertical-align: middle;
}

/* News */
.news { background: var(--paper); }
.news-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: start;
}
.news-list { list-style: none; }
.news-item {
  display: flex;
  gap: 16px;
  padding: 18px 12px;
  border-bottom: 1px solid var(--border);
  transition: background .25s ease;
  border-radius: 8px;
  align-items: baseline;
}
.news-item:hover { background: rgba(107, 74, 47, 0.03); }
.news-item .news-index { font-size: 13px; color: var(--accent); font-weight: 600; min-width: 28px; }
.news-item a { flex: 1; font-size: 15px; color: var(--text); line-height: 1.5; }
.news-item a:hover { color: var(--primary); }
.news-item .news-date { font-size: 13px; color: var(--text-weak); white-space: nowrap; }
.sidebar { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.sidebar-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; color: var(--primary); position: relative; padding-left: 14px; }
.sidebar-title::before { content: ''; position: absolute; left: 0; top: 2px; width: 3px; height: 18px; background: var(--primary); border-radius: 2px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.tag-cloud a {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  color: var(--text);
  transition: all .25s ease;
}
.tag-cloud a:hover { background: var(--primary); color: var(--paper); border-color: var(--primary); }
.update-list { list-style: none; }
.update-list li { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.update-list li:last-child { border-bottom: none; }
.update-list .upd-date { color: var(--text-weak); font-size: 13px; white-space: nowrap; margin-left: 12px; }

/* FAQ */
.faq { background: var(--alt-bg); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .25s ease;
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  min-height: 60px;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .faq-q { font-family: var(--font-serif); font-weight: 700; color: var(--primary); font-size: 14px; min-width: 30px; }
.faq-item .faq-arrow { margin-left: auto; transition: transform .25s ease; color: var(--primary); font-size: 18px; font-weight: 400; }
details[open] .faq-arrow { transform: rotate(45deg); }
.faq-answer {
  padding: 0 24px 22px 70px;
  border-left: 2px solid rgba(107, 74, 47, 0.2);
  margin: 0 20px 20px;
  background: var(--paper);
  border-radius: 0 0 12px 12px;
}
.faq-answer p { font-size: 15px; color: var(--text); line-height: 1.75; }
.faq-answer ul { list-style: none; margin-top: 10px; }
.faq-answer ul li { position: relative; padding-left: 20px; font-size: 14px; color: var(--text-weak); margin-bottom: 8px; }
.faq-answer ul li::before { content: ''; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }

/* CTA Form */
.cta-form {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
}
.cta-form::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(246, 241, 231, 0.95);
}
.cta-form .container { position: relative; }
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: center;
}
.cta-info h2 { font-size: 30px; margin-bottom: 16px; }
.cta-info p { color: var(--text-weak); margin-bottom: 24px; }
.cta-contact { list-style: none; margin-bottom: 28px; }
.cta-contact li { display: flex; align-items: center; gap: 12px; padding: 8px 0; font-size: 15px; color: var(--text); }
.cta-contact li svg { width: 18px; height: 18px; stroke: var(--primary); flex-shrink: 0; }
.form-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  padding: 36px;
  border: 1px solid var(--border);
}
.form-card h3 { font-size: 22px; margin-bottom: 20px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-field input,
.form-field select,
.form-field textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #FBF9F5;
  font-size: 16px;
  color: var(--text);
  transition: border-color .25s ease, box-shadow .25s ease;
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 100px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(107, 74, 47, 0.12);
}
.form-note { font-size: 12px; color: var(--text-weak); margin-top: 14px; line-height: 1.5; }
.form-submit { width: 100%; margin-top: 16px; }
.form-extra { display: flex; gap: 16px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.form-extra a { font-size: 14px; color: var(--primary); font-weight: 500; }

/* Footer */
.site-footer { background: var(--dark); color: var(--dark-text); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 60px 0 40px;
}
.footer-brand .logo { color: var(--dark-text); margin-bottom: 14px; }
.footer-brand .logo span { color: rgba(240, 233, 221, 0.7); }
.footer-brand p { font-size: 14px; color: rgba(240, 233, 221, 0.7); line-height: 1.6; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(240, 233, 221, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
}
.footer-social a svg { width: 16px; height: 16px; stroke: rgba(240, 233, 221, 0.8); }
.footer-social a:hover { background: var(--accent); border-color: var(--accent); }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 16px; color: var(--dark-text); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(240, 233, 221, 0.7); font-size: 14px; transition: color .25s ease; }
.footer-col ul a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: rgba(240, 233, 221, 0.7); margin-bottom: 10px; }
.footer-contact svg { width: 16px; height: 16px; stroke: var(--accent); flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(240, 233, 221, 0.12);
  text-align: center;
  font-size: 14px;
  color: rgba(240, 233, 221, 0.5);
}
.footer-bottom a { color: rgba(240, 233, 221, 0.7); }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-stats .stat-card { animation: fadeUp .5s ease both; }
.hero-stats .stat-card:nth-child(2) { animation-delay: .1s; }
.hero-stats .stat-card:nth-child(3) { animation-delay: .2s; }
.hero-stats .stat-card:nth-child(4) { animation-delay: .3s; }

/* Responsive */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(246, 241, 231, 0.95);
    backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .menu-open .main-nav { display: flex; }
  .main-nav a { padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 16px; }
  .main-nav a::after { display: none; }
  .menu-toggle { display: flex; }
  .menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
  .menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-cta { gap: 8px; }
  .nav-cta .btn { padding: 8px 14px; font-size: 13px; }
  .hero-banner { padding-top: 44px; }
  .hero-stats { padding-bottom: 40px; }
  .story-grid { grid-template-columns: 1fr; gap: 32px; }
  .compare-grid { grid-template-columns: 1fr; }
  .vs-badge { display: none; }
  .compare-stats { grid-template-columns: 1fr; }
  .compare-stat { text-align: left; margin-bottom: 12px; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section { --section-space: 56px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
}

@media (max-width: 576px) {
  .container { padding: 0 16px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 16px; }
  .stat-card .stat-num { font-size: 26px; }
  .services-grid { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-cta .btn-outline { display: none; }
  .hero-cta .btn { width: 100%; }
  .section { --section-space: 48px; }
  .faq-answer { padding: 0 16px 16px 20px; margin: 0 12px 12px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #6B4A2F;
  --primary-dark: #55402A;
  --accent: #B8823D;
  --bg: #F6F1E7;
  --card-bg: #FFFFFF;
  --alt-bg: #EFE8DC;
  --dark: #29241E;
  --text: #29241E;
  --text-light: #6B655C;
  --border: rgba(41, 36, 30, 0.10);
  --border-hover: rgba(107, 74, 47, 0.30);
  --success: #4A6B4F;
  --negative: #9A958C;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(41, 36, 30, 0.05), 0 8px 24px rgba(41, 36, 30, 0.04);
  --shadow-hover: 0 4px 8px rgba(41, 36, 30, 0.06), 0 16px 32px rgba(41, 36, 30, 0.08);
  --font-serif: "Noto Serif SC", Georgia, serif;
  --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

/* ===== Reset / Base ===== */
*, *::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: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(107, 74, 47, 0.25);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}
.brand span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.06em;
}
.main-nav {
  display: flex;
  gap: 28px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 2px;
  position: relative;
  white-space: nowrap;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .25s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a.active {
  color: var(--primary);
}
.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all .25s ease;
  min-height: 44px;
}
.btn-primary {
  background: var(--primary);
  color: #F6F1E7;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 6px rgba(0,0,0,.18);
}
.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #F6F1E7;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-accent {
  background: var(--accent);
  color: #FFFFFF;
}
.btn-accent:hover {
  background: #C08A3E;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-accent:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 6px rgba(0,0,0,.16);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(240,233,221,.4);
  color: #F0E9DD;
}
.btn-outline-light:hover {
  background: rgba(240,233,221,.12);
  border-color: #F0E9DD;
  transform: translateY(-2px);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  display: block;
  transition: all .3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 分类页头 ===== */
.category-header {
  position: relative;
  background: var(--bg);
  padding: 72px 0 56px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.category-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 0;
}
.category-header .container {
  position: relative;
  z-index: 1;
}
.breadcrumb {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a {
  color: var(--text-light);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
  background: rgba(184,130,61,.12);
  padding: 4px 14px;
  border-radius: 999px;
}
.category-header h1 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 14px;
}
.category-desc {
  font-size: 17px;
  color: var(--text-light);
  max-width: 680px;
  line-height: 1.7;
}

/* ===== 主区域 Layout ===== */
.category-main {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 44px;
  padding-top: 44px;
  padding-bottom: 80px;
  align-items: start;
}
.category-content {
  min-width: 0;
}

/* ===== 工具栏 ===== */
.toolbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}
.toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.toolbar-left h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
}
.count-badge {
  background: rgba(107,74,47,.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}
.toolbar-right {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  background: var(--card-bg);
  border: 1px solid var(--border);
  transition: all .25s ease;
  min-height: 36px;
}
.filter-btn:hover {
  border-color: var(--border-hover);
  color: var(--primary);
}
.filter-btn.active {
  background: var(--primary);
  color: #F6F1E7;
  border-color: var(--primary);
}

/* ===== 列表卡片 ===== */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.post-card {
  display: flex;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  transition: all .25s ease;
  box-shadow: var(--shadow);
}
.post-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: rgba(107,74,47,.18);
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}
.post-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(107,74,47,.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.post-thumb {
  width: 200px;
  height: 130px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--alt-bg);
}
.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.post-card:hover .post-thumb img {
  transform: scale(1.04);
}
.post-body {
  flex: 1;
  min-width: 0;
}
.post-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
  color: var(--text);
  transition: color .2s ease;
}
.post-body h3 a:hover {
  color: var(--primary);
}
.post-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.post-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.post-tags span {
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(107,74,47,.08);
  padding: 3px 10px;
  border-radius: 999px;
}
.post-date {
  font-size: 13px;
  color: #A5A095;
}

/* ===== 侧边栏 ===== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.side-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
}
.side-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--primary);
}
.side-card h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
  padding-left: 10px;
}
.side-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  padding-left: 10px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-left: 10px;
}
.tag-cloud a {
  font-size: 13px;
  color: var(--primary);
  background: rgba(107,74,47,.08);
  padding: 6px 14px;
  border-radius: 999px;
  transition: all .25s ease;
}
.tag-cloud a:hover {
  background: var(--primary);
  color: #F6F1E7;
}
.update-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  line-height: 1.5;
  padding-left: 10px;
}
.update-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.update-list .date {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-right: 8px;
  font-variant-numeric: tabular-nums;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-link {
  min-width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  transition: all .25s ease;
}
.page-link:hover {
  border-color: var(--border-hover);
  color: var(--primary);
  box-shadow: var(--shadow);
}
.page-link.active {
  background: var(--primary);
  color: #F6F1E7;
  border-color: var(--primary);
}
.page-link.prev,
.page-link.next {
  min-width: auto;
}

/* ===== CTA 条带 ===== */
.cta-strip {
  background: var(--dark);
  color: var(--bg);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.cta-text {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
}
.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: var(--bg);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1.4fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--bg);
  display: inline-block;
}
.footer-brand .logo span {
  font-size: 13px;
  font-weight: 400;
  color: rgba(240,233,221,.55);
  margin-left: 4px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(240,233,221,.65);
  margin: 12px 0 16px;
  line-height: 1.7;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(240,233,221,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
}
.footer-social a:hover {
  border-color: var(--accent);
  background: rgba(184,130,61,.15);
  transform: translateY(-2px);
}
.footer-social svg {
  width: 16px;
  height: 16px;
  stroke: #F0E9DD;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--bg);
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  font-size: 14px;
  color: rgba(240,233,221,.65);
  transition: color .25s ease;
}
.footer-col ul a:hover {
  color: var(--accent);
}
.footer-contact li {
  font-size: 14px;
  color: rgba(240,233,221,.65);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(240,233,221,.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(240,233,221,.5);
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .category-main {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-collapse {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(246, 241, 231, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    display: none;
    flex-direction: column;
    gap: 20px;
    z-index: 99;
    box-shadow: 0 16px 32px rgba(41,36,30,.08);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .nav-collapse.open {
    display: flex;
  }
  .main-nav {
    flex-direction: column;
    gap: 16px;
  }
  .main-nav a {
    font-size: 17px;
    display: inline-block;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    width: 100%;
  }
  .nav-cta .btn {
    flex: 1;
  }
  .category-header {
    padding: 52px 0 44px;
  }
  .category-header h1 {
    font-size: 30px;
  }
  .toolbar-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .post-card {
    flex-direction: column;
  }
  .post-thumb {
    width: 100%;
    height: 190px;
  }
  .sidebar {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    justify-content: center;
  }
}
@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }
  .nav-wrap {
    height: 64px;
  }
  .nav-collapse {
    top: 64px;
    max-height: calc(100vh - 64px);
  }
  .brand {
    font-size: 18px;
  }
  .brand span {
    font-size: 11px;
  }
  .category-header h1 {
    font-size: 27px;
  }
  .category-main {
    padding-top: 32px;
    padding-bottom: 48px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .post-thumb {
    height: 160px;
  }
  .post-card {
    padding: 16px;
  }
  .btn {
    padding: 10px 18px;
    font-size: 14px;
    min-height: 44px;
  }
  .cta-text {
    font-size: 21px;
  }
}