/* roulang page: index */
:root {
  --primary: #6B4F3A;
  --primary-dark: #5C4033;
  --primary-darker: #2D241D;
  --accent: #7A8450;
  --accent-deep: #55603A;
  --gold: #C9A87C;
  --gold-deep: #B8894F;
  --bg-paper: #FAF6F0;
  --bg-cream: #F7F2EB;
  --text-main: #2D2A26;
  --text-sub: #6B6157;
  --text-light: #F7F2EB;
  --border-light: rgba(107, 79, 58, .14);
  --border-med: rgba(107, 79, 58, .25);
  --radius-lg: 14px;
  --radius-sm: 8px;
  --shadow-soft: 0 2px 8px rgba(90, 60, 30, .06), 0 10px 30px rgba(90, 60, 30, .08);
  --shadow-hover: 0 4px 16px rgba(90, 60, 30, .10), 0 16px 40px rgba(90, 60, 30, .12);
  --space-section: 90px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  background: var(--bg-paper);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-deep); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { position: relative; }
.section-pad { padding: var(--space-section) 0; }

.text-center { text-align: center; }

.eyebrow {
  display: inline-block;
  background: rgba(122,132,80,.14);
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: .02em;
  line-height: 1.3;
  margin-bottom: 14px;
  position: relative;
}
.section-title .num {
  font-size: 44px;
  font-weight: 800;
  color: var(--gold);
  opacity: .45;
  margin-right: 10px;
  vertical-align: middle;
}
.section-desc { font-size: 16px; color: var(--text-sub); max-width: 680px; line-height: 1.8; margin-bottom: 30px; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250,246,240,.72);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 12px rgba(90,60,30,.05);
  transition: all .3s ease;
}
.site-header.scrolled {
  background: rgba(250,246,240,.97);
  box-shadow: 0 4px 20px rgba(90,60,30,.10);
}
.site-header .header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: height .3s ease;
}
.site-header.scrolled .header-inner { height: 60px; }

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  flex-shrink: 0;
}
.logo-main {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: .02em;
}
.logo-sub {
  font-size: 11px;
  color: var(--accent-deep);
  letter-spacing: .12em;
  font-weight: 500;
}

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all .25s ease;
  position: relative;
}
.main-nav a:hover { color: var(--primary); background: rgba(107,79,58,.06); }
.main-nav a.active { color: var(--accent-deep); font-weight: 600; }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
}

.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-search { position: relative; }
.search-toggle {
  background: none; border: none;
  font-size: 18px;
  color: var(--text-sub);
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: all .25s ease;
}
.search-toggle:hover { color: var(--primary); background: rgba(107,79,58,.06); }
.search-box {
  position: absolute;
  top: 120%; right: 0;
  width: 260px;
  background: var(--bg-paper);
  border: 1px solid var(--border-med);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  padding: 8px;
  display: none;
  z-index: 50;
}
.search-box.open { display: block; animation: fadeSlide .2s ease; }
.search-box input[type="search"] {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-med);
  border-radius: 8px;
  background: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color .2s;
}
.search-box input[type="search"]:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(107,79,58,.12); }
.search-box button {
  position: absolute;
  right: 16px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-sub);
  cursor: pointer;
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: all .28s ease;
  border: 1px solid transparent;
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--gold-deep); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(107,79,58,.25); }
.btn-primary:focus, .btn:focus { outline: 2px solid rgba(107,79,58,.35); outline-offset: 2px; }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(107,79,58,.08); color: var(--primary); transform: translateY(-2px); }
.btn-light { background: var(--text-light); color: var(--primary-dark); }
.btn-light:hover { background: #fff; color: var(--primary); }
.btn-ghost-light { background: transparent; border: 1px solid rgba(250,246,240,.6); color: var(--text-light); }
.btn-ghost-light:hover { background: rgba(250,246,240,.15); color: #fff; }
.btn-lg { padding: 14px 32px; font-size: 15px; }

.nav-cta { padding: 9px 20px; font-size: 13px; }

.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger i { font-size: 24px; color: var(--text-main); }

/* 移动端菜单 */
.mobile-menu {
  display: none;
  background: var(--bg-paper);
  border-top: 1px solid var(--border-light);
  box-shadow: 0 10px 30px rgba(90,60,30,.08);
}
.mobile-menu.open { display: block; animation: fadeSlide .25s ease; }
.mobile-menu a {
  display: block;
  padding: 16px 28px;
  font-size: 18px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 1px solid rgba(107,79,58,.06);
}
.mobile-menu a:hover { background: rgba(107,79,58,.05); color: var(--primary); }
.mobile-menu a.active { color: var(--accent-deep); }
.mobile-menu .mobile-cta { margin: 20px; padding: 14px; text-align: center; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(60,40,25,.85) 0%, rgba(60,40,25,.65) 45%, rgba(60,40,25,.25) 100%), url('/assets/images/backpic/back-1.jpg') no-repeat center center / cover;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-inner { display: flex; align-items: center; gap: 60px; }
.hero-main { flex: 1; }
.hero-side { flex-shrink: 0; width: 340px; display: block; }

.hero-badge {
  display: inline-block;
  background: rgba(122,132,80,.25);
  color: #E8E4D8;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .05em;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 22px;
  border: 1px solid rgba(201,168,124,.35);
}
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  letter-spacing: .02em;
  margin-bottom: 16px;
  text-shadow: 0 2px 16px rgba(0,0,0,.2);
}
.hero h1 span { color: var(--gold); }
.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(250,246,240,.92);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 45px; }

.hero-metrics { display: flex; gap: 32px; }
.hero-metrics .metric { text-align: left; }
.hero-metrics .metric-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}
.hero-metrics .metric-label { font-size: 12px; color: rgba(250,246,240,.75); letter-spacing: .06em; }

.note-card {
  background: #FFFDF8;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 8px 36px rgba(45,36,29,.28), 0 2px 8px rgba(45,36,29,.15);
  transform: rotate(2deg);
  position: relative;
  border: 1px solid rgba(201,168,124,.25);
}
.note-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--primary));
  border-radius: 16px 16px 0 0;
}
.note-card .note-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.note-card .note-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
}
.note-score {
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.1;
  box-shadow: 0 4px 14px rgba(107,79,58,.3);
}
.note-score .score-val { font-size: 24px; font-weight: 800; }
.note-score .score-label { font-size: 10px; opacity: .85; }
.note-list { margin-top: 6px; }
.note-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(107,79,58,.12);
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.5;
}
.note-list li:last-child { border-bottom: none; }
.note-list li i { color: var(--accent); font-size: 13px; margin-top: 4px; }
.note-footer {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-sub);
  text-align: right;
  font-style: italic;
}

/* ===== 服务板块 ===== */
.services { background: var(--bg-paper); }
.services .grid-x { margin-top: 20px; }
.service-card {
  background: #FFFDF8;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-soft);
  transition: all .3s ease;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.service-card .card-no {
  position: absolute;
  top: -12px; left: 20px;
  font-size: 64px;
  font-weight: 800;
  color: rgba(107,79,58,.08);
  line-height: 1;
  z-index: 0;
  user-select: none;
}
.service-card .card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; position: relative; z-index: 1; }
.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(122,132,80,.12);
  color: var(--accent-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  line-height: 1.4;
}
.badge-tea { background: rgba(122,132,80,.14); color: var(--accent-deep); }
.badge-gold { background: rgba(185,137,79,.16); color: #8A5A24; }
.badge-light { background: rgba(250,246,240,.2); color: #E8E4D8; }
.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
  letter-spacing: .02em;
  position: relative;
  z-index: 1;
}
.service-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.75;
  flex: 1;
  position: relative;
  z-index: 1;
}
.service-card .card-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-deep);
  transition: gap .25s ease;
  position: relative;
  z-index: 1;
}
.service-card .card-link i { transition: transform .25s ease; }
.service-card .card-link:hover i { transform: translateX(4px); }

/* ===== 数据板块 ===== */
.stats-band {
  background: linear-gradient(135deg, #3E2F25 0%, #2D241D 100%);
  padding: 80px 0;
  position: relative;
}
.stats-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.stats-inner { position: relative; z-index: 2; }
.stats-band .section-title { color: #F7F2EB; }
.stats-band .section-desc { color: rgba(247,242,235,.7); }
.stats-row { display: flex; justify-content: space-between; gap: 40px; margin-top: 40px; flex-wrap: wrap; }
.stat-item { text-align: left; padding: 20px 24px; border-left: 3px solid var(--gold); background: rgba(255,255,255,.04); border-radius: 0 12px 12px 0; transition: all .3s ease; }
.stat-item:hover { background: rgba(255,255,255,.08); transform: translateX(4px); }
.stat-num { font-size: 52px; font-weight: 800; color: var(--gold); line-height: 1.1; }
.stat-num sup { font-size: 22px; font-weight: 600; }
.stat-label { font-size: 14px; color: rgba(247,242,235,.75); margin-top: 4px; letter-spacing: .04em; }
.stat-symbol { position: absolute; font-size: 30px; color: rgba(201,168,124,.4); }

/* ===== 案例板块 ===== */
.cases { background: var(--bg-cream); }
.case-block { display: flex; align-items: center; gap: 50px; margin-bottom: 70px; }
.case-block:last-child { margin-bottom: 0; }
.case-block.reverse { flex-direction: row-reverse; }
.case-media { flex: 1.1; position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-soft); }
.case-media img { width: 100%; height: 340px; object-fit: cover; transition: transform .5s ease; }
.case-media:hover img { transform: scale(1.03); }
.case-content { flex: 1; }
.case-content .badge { margin-right: 8px; margin-bottom: 8px; }
.case-content h3 { font-size: 24px; font-weight: 700; color: var(--primary-dark); line-height: 1.4; margin: 14px 0 12px; }
.case-content p { font-size: 15px; color: var(--text-sub); line-height: 1.8; margin-bottom: 18px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.case-tags .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #8A5A24;
  background: rgba(185,137,79,.14);
  padding: 4px 12px;
  border-radius: 999px;
}
.case-link { font-size: 14px; font-weight: 600; color: var(--accent-deep); display: inline-flex; align-items: center; gap: 6px; }
.case-link:hover i { transform: translateX(4px); }
.case-link i { transition: transform .25s ease; }

/* ===== 最新信息 ===== */
.updates { background: var(--bg-paper); }
.updates .section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 30px; flex-wrap: wrap; gap: 16px; }
.updates .section-head h2 { margin-bottom: 0; }
.view-all { font-size: 14px; font-weight: 600; color: var(--accent-deep); display: inline-flex; align-items: center; gap: 6px; }
.view-all i { transition: transform .25s ease; }
.view-all:hover i { transform: translateX(4px); }
.info-list { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  display: flex;
  gap: 20px;
  background: #FFFDF8;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 18px;
  transition: all .28s ease;
  box-shadow: 0 1px 4px rgba(90,60,30,.04);
}
.info-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: rgba(107,79,58,.2); }
.info-thumb { flex-shrink: 0; width: 130px; height: 88px; border-radius: 10px; overflow: hidden; }
.info-thumb img { width: 100%; height: 100%; object-fit: cover; }
.info-content { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.info-content h4 { font-size: 17px; font-weight: 600; color: var(--text-main); line-height: 1.45; margin-bottom: 4px; }
.info-content h4 a { color: inherit; }
.info-content h4 a:hover { color: var(--primary); }
.info-content p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.info-meta { display: flex; align-items: center; gap: 12px; margin-top: auto; font-size: 12px; color: var(--text-sub); }
.info-meta .badge { font-size: 11px; padding: 3px 10px; }
.info-date { display: inline-flex; align-items: center; gap: 4px; }
.info-empty {
  border: 2px dashed rgba(107,79,58,.2);
  border-radius: 12px;
  padding: 60px 30px;
  text-align: center;
  color: var(--text-sub);
  background: rgba(250,246,240,.5);
}
.info-empty i { font-size: 36px; color: rgba(107,79,58,.3); margin-bottom: 12px; display: block; }

/* ===== 方案流程 ===== */
.path-way { background: var(--bg-cream); }
.timeline { margin-top: 30px; position: relative; }
.timeline-line {
  position: absolute;
  left: 29px; top: 20px; bottom: 20px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--gold) 0 6px, transparent 6px 12px);
  opacity: .5;
}
.timeline-item { display: flex; gap: 30px; position: relative; padding-bottom: 36px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-num {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 2;
  box-shadow: 0 4px 14px rgba(107,79,58,.3);
  border: 3px solid var(--bg-cream);
}
.timeline-content { flex: 1; padding-top: 6px; background: #FFFDF8; border: 1px solid var(--border-light); border-radius: 12px; padding: 22px 28px; box-shadow: var(--shadow-soft); transition: all .3s ease; }
.timeline-content:hover { box-shadow: var(--shadow-hover); }
.timeline-content h3 { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.timeline-content p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* ===== FAQ ===== */
.faq { background: var(--bg-paper); }
.faq-layout { display: flex; gap: 50px; }
.faq-side { flex: 0 0 280px; }
.faq-side .section-title { font-size: 28px; }
.accordion-list { flex: 1; }
.accordion-item {
  background: #FFFDF8;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow .3s ease;
}
.accordion-item:hover { box-shadow: var(--shadow-soft); }
.accordion-item.is-active { box-shadow: var(--shadow-soft); border-color: rgba(107,79,58,.2); }
.accordion-head {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color .25s ease;
  user-select: none;
}
.accordion-head:hover { color: var(--primary); }
.accordion-icon {
  width: 22px; height: 22px;
  position: relative;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.accordion-icon::before, .accordion-icon::after {
  content: '';
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
}
.accordion-icon::before { width: 14px; height: 2px; top: 10px; left: 4px; }
.accordion-icon::after { width: 2px; height: 14px; top: 4px; left: 10px; }
.accordion-item.is-active .accordion-icon { transform: rotate(45deg); }
.accordion-body {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.accordion-item.is-active .accordion-body { padding: 0 22px 20px; max-height: 400px; }
.accordion-body p { font-size: 15px; line-height: 1.8; color: var(--text-sub); }

/* ===== 联系CTA ===== */
.contact { background: var(--bg-cream); }
.cta-banner {
  background: linear-gradient(135deg, #3E2F25, #2D241D);
  border-radius: 16px;
  padding: 50px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 60px;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 8%; right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.cta-banner h2 { color: #fff; font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-banner p { color: rgba(247,242,235,.75); font-size: 15px; max-width: 520px; margin: 0 auto 28px; line-height: 1.7; }
.cta-banner .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-banner .btn-light { padding: 14px 30px; font-size: 15px; }

.contact-layout { display: flex; gap: 50px; align-items: flex-start; }
.contact-info { flex: 0 0 360px; }
.contact-info .info-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--border-light);
}
.contact-info .info-item:last-child { border-bottom: none; }
.contact-info .icon-circle {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(122,132,80,.12);
  color: var(--accent-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}
.contact-info .info-label { font-size: 12px; color: var(--text-sub); }
.contact-info .info-value { font-size: 15px; font-weight: 600; color: var(--text-main); margin-top: 2px; }

.contact-form-wrap { flex: 1; background: #FFFDF8; border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow-soft); }
.contact-form-wrap h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.contact-form-wrap .form-sub { font-size: 13px; color: var(--text-sub); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text-main); margin-bottom: 6px; }
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-med);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  line-height: 1.5;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
  color: var(--text-main);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(107,79,58,.15);
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-submit { margin-top: 8px; }
.form-submit .btn-primary { width: 100%; }

/* ===== 页脚 ===== */
.site-footer {
  background: #2D241D;
  color: rgba(247,242,235,.8);
  padding-top: 60px;
  border-top: 4px solid var(--gold);
}
.footer-grid { display: flex; gap: 60px; padding-bottom: 40px; flex-wrap: wrap; }
.footer-brand { flex: 2; min-width: 260px; }
.footer-brand .logo-main { color: #F7F2EB; font-size: 20px; }
.footer-brand .logo-sub { color: var(--gold); }
.footer-brand p { font-size: 14px; color: rgba(247,242,235,.65); line-height: 1.8; margin-top: 14px; }
.footer-links { flex: 1; min-width: 160px; }
.footer-links h4, .footer-contact h4 { font-size: 15px; color: #F7F2EB; font-weight: 700; margin-bottom: 16px; letter-spacing: .04em; }
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(247,242,235,.65);
  padding: 5px 0;
  transition: all .25s ease;
}
.footer-links a:hover { color: var(--gold); padding-left: 6px; }
.footer-contact { flex: 1.2; min-width: 220px; }
.footer-contact p { font-size: 14px; color: rgba(247,242,235,.65); margin-bottom: 8px; line-height: 1.6; }
.footer-contact p i { color: var(--gold); margin-right: 8px; width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(247,242,235,.12);
  padding: 20px 0 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(247,242,235,.5);
}
.footer-bottom span { margin: 0 6px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 36px; }
  .hero-side { width: 300px; }
  .stats-row { gap: 20px; }
  .stat-item { flex: 1 1 40%; }
}

@media (max-width: 900px) {
  .hero-inner { flex-direction: column; gap: 30px; }
  .hero-side { display: none; }
  .main-nav { display: none; }
  .hamburger { display: block; }
  .nav-cta { display: none; }
  .mobile-menu { display: none; }
  .case-block, .case-block.reverse { flex-direction: column; gap: 24px; }
  .case-media img { height: 260px; }
  .faq-layout { flex-direction: column; gap: 30px; }
  .faq-side { flex: none; }
  .contact-layout { flex-direction: column; gap: 30px; }
  .contact-info { flex: none; width: 100%; }
  .footer-grid { gap: 30px; }
  .section-pad { padding: 60px 0; }
}

@media (max-width: 640px) {
  .section-title { font-size: 26px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .hero { padding: 110px 0 60px; }
  .hero-metrics { gap: 16px; }
  .hero-metrics .metric-value { font-size: 22px; }
  .hero-metrics .metric-label { font-size: 11px; }
  .stat-item { flex: 1 1 100%; }
  .case-media img { height: 200px; }
  .timeline-item { gap: 16px; }
  .timeline-num { width: 50px; height: 50px; font-size: 16px; }
  .timeline-line { left: 24px; }
  .timeline-content { padding: 16px 18px; }
  .section-pad { padding: 48px 0; }
  .info-card { flex-direction: column; gap: 12px; }
  .info-thumb { width: 100%; height: 140px; }
  .cta-banner { padding: 30px 20px; }
  .cta-banner h2 { font-size: 22px; }
  .contact-form-wrap { padding: 24px 18px; }
  .footer-grid { flex-direction: column; gap: 24px; }
  .btn-lg { padding: 12px 20px; font-size: 14px; }
  .hero-cta { gap: 10px; }
}

/* roulang page: article */
:root{
    --paper:#FAF6F0;
    --paper-2:#F7F2EB;
    --card-bg:#FFFDFA;
    --primary:#6B4F3A;
    --primary-dark:#5C4033;
    --primary-deep:#2D241D;
    --secondary:#7A8450;
    --secondary-dark:#55603A;
    --accent:#C9A87C;
    --accent-dark:#B8894F;
    --text-main:#2D2A26;
    --text-sub:#6B6157;
    --border:rgba(107,79,58,.14);
    --radius:14px;
    --radius-sm:8px;
    --radius-badge:999px;
    --shadow-1:0 2px 8px rgba(90,60,30,.06);
    --shadow-2:0 10px 30px rgba(90,60,30,.08);
    --shadow-hover:0 16px 40px rgba(90,60,30,.12);
    --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-main);background:var(--paper);color:var(--text-main);line-height:1.7;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:var(--secondary-dark);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--primary)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 22px}
section{position:relative}

/* 导航 */
.main-nav{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:rgba(250,246,240,.72);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(107,79,58,.16);
    box-shadow:0 2px 12px rgba(90,60,30,.05);
    transition:background .3s ease,box-shadow .3s ease;
}
.main-nav.scrolled{
    background:rgba(250,246,240,.97);
    box-shadow:0 4px 22px rgba(90,60,30,.1);
}
.nav-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:72px;transition:height .3s ease;
}
.main-nav.scrolled .nav-inner{height:60px}
.brand-logo{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:17px;font-weight:800;color:var(--primary);letter-spacing:.03em;white-space:nowrap}
.logo-sub{font-size:12px;color:var(--text-sub);letter-spacing:.08em;font-weight:500;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
    display:block;padding:10px 14px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:500;color:var(--text-main);transition:all .25s ease;
}
.nav-links a:hover{background:rgba(107,79,58,.08);color:var(--primary)}
.nav-links a.active{background:var(--primary);color:var(--paper)}
.nav-cta{display:flex;align-items:center;gap:12px}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--radius-sm);font-weight:600;
    font-size:14px;line-height:1.2;text-align:center;cursor:pointer;
    border:1px solid transparent;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--paper)}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(107,79,58,.1);color:var(--primary-dark)}
.btn-accent{background:var(--accent-dark);color:#fff}
.btn-accent:hover{background:var(--primary);color:var(--paper)}
.btn-ghost-light{background:transparent;border-color:rgba(250,246,240,.6);color:var(--paper)}
.btn-ghost-light:hover{background:rgba(250,246,240,.12);border-color:var(--paper);color:#fff}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-lg{padding:15px 34px;font-size:16px}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;width:42px;height:42px;border-radius:8px;align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(107,79,58,.08)}
.nav-toggle .hamburger{position:relative;width:22px;height:2px;background:var(--primary);border-radius:2px;display:block}
.nav-toggle .hamburger::before,.nav-toggle .hamburger::after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--primary);border-radius:2px;transition:all .3s ease}
.nav-toggle .hamburger::before{top:-7px}
.nav-toggle .hamburger::after{top:7px}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{
    width:0;opacity:0;border:1px solid transparent;background:transparent;
    padding:0;border-radius:var(--radius-sm);transition:all .35s ease;outline:none;
}
.search-box.open input{
    width:180px;opacity:1;padding:8px 12px;border-color:rgba(107,79,58,.3);
    background:#fff;color:var(--text-main);
}
.search-box .search-toggle{
    background:none;border:none;font-size:17px;color:var(--primary);cursor:pointer;
    width:38px;height:38px;border-radius:8px;transition:background .25s ease;
}
.search-box .search-toggle:hover{background:rgba(107,79,58,.08)}

/* 文章 Banner */
.article-banner{
    min-height:360px;display:flex;align-items:flex-end;padding-top:130px;padding-bottom:100px;
    background:
        linear-gradient(120deg,rgba(45,36,29,.9) 0%,rgba(61,43,33,.62) 55%,rgba(90,60,30,.25) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(250,246,240,.8)}
.breadcrumb a{color:rgba(250,246,240,.9);transition:color .25s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{font-size:10px;color:rgba(250,246,240,.55)}
.breadcrumb span{color:var(--accent)}

/* 文章正文区 */
.article-wrap{
    position:relative;z-index:2;max-width:800px;margin:-70px auto 0;padding:0 22px;
}
.article-card{
    background:var(--card-bg);border:1px solid var(--border);border-radius:18px;
    box-shadow:var(--shadow-2);padding:42px 46px;
}
.article-category{margin-bottom:16px;display:flex;gap:8px;flex-wrap:wrap}
.badge{
    display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--radius-badge);
    font-size:12px;font-weight:600;letter-spacing:.02em;
    background:rgba(122,132,80,.14);color:var(--secondary-dark);
}
.badge-green{background:rgba(122,132,80,.14);color:var(--secondary-dark)}
.badge-gold{background:rgba(185,137,79,.16);color:#8A5A24}
.article-title{
    font-size:36px;line-height:1.35;font-weight:800;color:var(--primary-dark);
    letter-spacing:.01em;margin-bottom:14px;
}
.article-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:20px;
    padding-bottom:22px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-sub);
}
.article-meta .article-meta-item{display:inline-flex;align-items:center;gap:6px}
.article-content{
    margin-top:32px;font-size:16px;line-height:1.9;color:var(--text-main);
}
.article-content h2{
    font-size:24px;margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--accent-dark);
    color:var(--primary-dark);font-weight:700;line-height:1.4;
}
.article-content h3{
    font-size:19px;margin:30px 0 12px;color:var(--primary-dark);font-weight:700;line-height:1.45;
}
.article-content p{margin-bottom:18px}
.article-content img{
    border-radius:12px;box-shadow:var(--shadow-2);max-width:100%;height:auto;margin:26px auto;
}
.article-content figure{margin:26px 0}
.article-content figcaption{
    font-size:13px;color:var(--text-sub);text-align:center;margin-top:8px;
}
.article-content blockquote{
    border-left:4px solid var(--secondary);background:rgba(122,132,80,.08);
    border-radius:0 8px 8px 0;padding:16px 22px;margin:26px 0;color:var(--text-secondary);
}
.article-content ul,.article-content ol{margin:18px 0;padding-left:24px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:8px}
.article-content table{
    width:100%;border-collapse:collapse;margin:26px 0;border-radius:8px;overflow:hidden;
    background:#fff;border:1px solid var(--border);
}
.article-content th,.article-content td{
    border:1px solid var(--border);padding:12px 16px;text-align:left;font-size:14px;
}
.article-content th{background:var(--paper-2);font-weight:600;color:var(--primary-dark)}
.article-content hr{border:none;border-top:1px solid var(--border);margin:38px 0}
.article-content .highlight-box{
    background:rgba(185,137,79,.12);border-left:4px solid var(--accent-dark);
    border-radius:0 8px 8px 0;padding:14px 20px;margin:26px 0;color:var(--primary-dark);
}
.article-content .note-box{
    background:rgba(122,132,80,.08);border-radius:8px;padding:14px 20px;margin:26px 0;
    color:var(--secondary-dark);font-size:14px;
}
.article-content a{text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary)}
.article-tags{
    display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;padding-top:24px;border-top:1px solid var(--border);
}
.article-back{margin-top:28px;text-align:center}
.article-empty{
    background:var(--card-bg);border:2px dashed rgba(107,79,58,.25);border-radius:18px;
    padding:70px 30px;text-align:center;box-shadow:var(--shadow-1);
}
.article-empty i{font-size:46px;color:var(--accent-dark);margin-bottom:18px;display:inline-block}
.article-empty h2{font-size:26px;color:var(--primary-dark);margin-bottom:10px}
.article-empty p{color:var(--text-sub);max-width:400px;margin:0 auto 10px}

/* 相关推荐 */
.recommend-section{padding:90px 0 60px}
.section-header{
    display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:38px;gap:20px;
}
.section-header .eyebrow{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
    padding:4px 14px;border-radius:var(--radius-badge);background:rgba(122,132,80,.14);
    color:var(--secondary-dark);margin-bottom:10px;text-transform:none;
}
.section-header h2{font-size:30px;font-weight:800;color:var(--primary-dark);line-height:1.3;letter-spacing:.02em}
.section-header .section-desc{color:var(--text-sub);font-size:15px;max-width:520px;margin-top:6px}
.section-more{
    display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
    padding:10px 22px;border-radius:var(--radius-sm);border:1px solid rgba(107,79,58,.25);color:var(--primary);
    transition:all .25s ease;
}
.section-more:hover{background:var(--primary);color:var(--paper);border-color:var(--primary)}
.recommend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.recommend-item{
    display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--border);
    border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;transition:all .3s ease;
}
.recommend-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.recommend-item .rec-thumb{position:relative;width:100%;height:180px;overflow:hidden}
.recommend-item .rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.recommend-item:hover .rec-thumb img{transform:scale(1.05)}
.recommend-item .rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.recommend-item .rec-body h3{font-size:17px;line-height:1.5;font-weight:700;color:var(--primary-dark);transition:color .25s}
.recommend-item .rec-body h3:hover{color:var(--accent-dark)}
.recommend-item .rec-body p{font-size:13px;color:var(--text-sub);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.recommend-item .rec-meta{
    display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-sub);
    margin-top:auto;padding-top:10px;border-top:1px solid rgba(107,79,58,.08);
}

/* CTA */
.cta-section{
    background:var(--primary-deep);padding:90px 0;position:relative;overflow:hidden;
}
.cta-section::before{
    content:"";position:absolute;top:0;left:0;right:0;height:4px;
    background:linear-gradient(90deg,var(--accent-dark),var(--secondary),var(--accent-dark));
}
.cta-inner{text-align:center;max-width:720px;margin:0 auto;position:relative}
.cta-inner h3{font-size:32px;color:var(--paper);font-weight:800;line-height:1.4;margin-bottom:14px;letter-spacing:.02em}
.cta-inner p{color:rgba(250,246,240,.75);font-size:16px;line-height:1.8;margin-bottom:32px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* Footer */
.site-footer{background:#2D241D;border-top:4px solid var(--accent-dark);color:rgba(250,246,240,.8)}
.site-footer .container{padding-top:56px;padding-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:44px;margin-bottom:36px}
.footer-brand .logo{display:inline-flex;flex-direction:column;line-height:1.25;margin-bottom:12px}
.footer-brand .logo .logo-main{color:var(--paper);font-size:18px;font-weight:800;letter-spacing:.03em}
.footer-brand .logo .logo-sub{color:rgba(250,246,240,.6);font-size:12px;letter-spacing:.08em}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(250,246,240,.65);max-width:420px}
.footer-links h4,.footer-contact h4{
    font-size:15px;color:var(--paper);font-weight:700;margin-bottom:14px;letter-spacing:.03em;
}
.footer-links a{
    display:block;color:rgba(250,246,240,.62);font-size:14px;padding:4px 0;transition:all .25s;
}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact p{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(250,246,240,.62);margin-bottom:6px}
.footer-contact p i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{
    display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;
    border-top:1px solid rgba(250,246,240,.1);padding-top:20px;font-size:13px;color:rgba(250,246,240,.45);
}

/* 响应式 */
@media screen and (max-width:63.9375em){
    .recommend-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    .nav-links{display:none;position:fixed;top:0;right:0;width:300px;height:100vh;background:var(--paper);flex-direction:column;align-items:flex-start;justify-content:flex-start;padding:90px 30px 30px;box-shadow:-8px 0 30px rgba(0,0,0,.12);z-index:999;border-left:1px solid var(--border)}
    .nav-links.is-open{display:flex}
    .nav-links a{font-size:18px;padding:12px 16px;width:100%;border-radius:8px}
    .nav-links .nav-cta-inner{margin-top:20px;width:100%}
    .nav-toggle{display:flex}
    .search-box{display:none}
    .article-card{padding:34px 28px}
    .article-title{font-size:30px}
}
@media screen and (max-width:39.9375em){
    .container{padding:0 16px}
    .nav-inner{height:64px}
    .logo-main{font-size:15px}
    .logo-sub{font-size:11px}
    .nav-cta .btn{display:none}
    .article-banner{min-height:300px;padding-bottom:80px}
    .article-wrap{margin-top:-50px}
    .article-card{padding:24px 18px;border-radius:14px}
    .article-title{font-size:26px}
    .article-meta{gap:14px}
    .section-header{flex-direction:column;align-items:flex-start}
    .section-header h2{font-size:24px}
    .recommend-grid{grid-template-columns:1fr}
    .cta-inner h3{font-size:24px}
    .cta-actions{flex-direction:column}
    .cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:420px){
    .article-content{font-size:15px;line-height:1.8}
    .article-content h2{font-size:21px}
    .article-content h3{font-size:17px}
    .article-card{padding:20px 14px}
    .breadcrumb{font-size:12px}
}