/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --primary: #0F5C4E;
  --primary-dark: #0A4238;
  --accent: #FF6B3D;
  --accent-dark: #F25A2C;
  --dark: #0B2D26;
  --dark-light: #123A31;
  --bg: #FAF7F2;
  --bg-light: #F0EBE3;
  --card-bg: #FFFFFF;
  --text: #1C2B27;
  --text-sec: #5B6B64;
  --text-weak: #9AA8A2;
  --border: #E3DDD3;
  --link: #2D8C76;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 4px rgba(11,45,38,0.06);
  --shadow-lg: 0 10px 30px rgba(11,45,38,0.12);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container-w: 1200px;
  --header-h: 64px;
  --nav-h: 44px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  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: var(--link); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary); }
button { font-family: var(--font); cursor: pointer; }
input, textarea { font-family: var(--font); }
ul, ol { list-style: none; }

/* ===== Container ===== */
.grid-container { max-width: var(--container-w); padding-left: 24px; padding-right: 24px; }
.grid-container-fluid { padding-left: 24px; padding-right: 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 600;
  border: none;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255,107,61,.25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.7); }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-dark { background: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(15,92,78,.25); }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }

/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}
.badge-soft { background: rgba(15,92,78,.1); color: var(--primary); }
.badge-orange { background: rgba(255,107,61,.1); color: var(--accent); }
.badge-white { background: rgba(255,255,255,.15); color: #fff; }

/* ===== Section common ===== */
.section { padding: 96px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--primary);
  text-transform: uppercase;
}
.section-label::before { content: ""; width: 24px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-top: 16px;
  letter-spacing: .01em;
}
.section-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-sec);
  margin-top: 12px;
  max-width: 560px;
}
.section-header { margin-bottom: 48px; }
.section-header-center { text-align: center; }
.section-header-center .section-desc { margin-left: auto; margin-right: auto; }
.section-header-center .section-label { justify-content: center; }
.section-header-center .section-label::before { display: none; }

/* ===== Header Top ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--bg);
  transition: box-shadow .4s ease, background .4s ease;
}
.site-header.scrolled {
  background: rgba(250,247,242,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(11,45,38,.08);
}
.header-top { border-bottom: 1px solid var(--border); transition: all .3s ease; }
.header-nav { border-bottom: 1px solid var(--border); background: rgba(250,247,242,.85); transition: all .3s ease; }
.site-header.scrolled .header-top { border-bottom-color: transparent; }
.site-header.scrolled .header-nav { border-bottom-color: transparent; box-shadow: 0 2px 12px rgba(11,45,38,.04); }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
  transition: height .3s ease;
}
.site-header.scrolled .header-top-inner { height: 48px; }

/* Brand Logo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  box-shadow: 0 4px 12px rgba(15,92,78,.25);
  transition: transform .3s ease;
}
.brand-logo:hover .logo-icon { transform: rotate(-6deg) scale(1.04); }
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .02em;
  line-height: 1;
}
.logo-text .logo-dot { color: var(--accent); }

/* Header Search */
.header-search { flex: 1; max-width: 420px; position: relative; }
.header-search form { position: relative; }
.header-search input {
  width: 100%;
  height: 36px;
  padding: 0 44px 0 18px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: var(--bg-light);
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: all .3s ease;
}
.header-search input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15,92,78,.12);
}
.header-search button {
  position: absolute;
  right: 4px; top: 50%;
  transform: translateY(-50%);
  width: 30px; height: 30px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-weak);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
}
.header-search button:hover { color: var(--primary); background: rgba(15,92,78,.08); }

/* Header Trends */
.header-trends {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-size: 13px;
}
.header-trends .trends-label {
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.header-trends a {
  color: var(--text-sec);
  text-decoration: none;
  transition: color .2s ease;
}
.header-trends a:hover { color: var(--primary); }
.header-trends .trends-divider { color: var(--border); }

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  width: 40px; height: 40px;
  border: none;
  background: transparent;
  position: relative;
  flex-shrink: 0;
}
.mobile-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  margin: 4px auto;
  transition: all .3s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===== Header Nav ===== */
.header-nav-inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; transition: height .3s ease; }
.site-header.scrolled .header-nav-inner { height: 38px; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  position: relative;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color .25s ease;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }
.nav-link:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: 4px; }

/* ===== Mobile Drawer ===== */
.mobile-drawer {
  position: fixed;
  top: 0; right: -100%;
  width: min(360px, 88vw);
  height: 100vh;
  background: var(--bg);
  z-index: 1100;
  box-shadow: -8px 0 40px rgba(11,45,38,.15);
  padding: 32px 28px;
  overflow-y: auto;
  transition: right .4s cubic-bezier(.4,0,.2,1);
}
.mobile-drawer.open { right: 0; }
.drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.drawer-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--bg-light);
  color: var(--text);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
}
.drawer-close:hover { background: var(--accent); color: #fff; }
.drawer-search { margin-bottom: 28px; }
.drawer-search input {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
  outline: none;
}
.drawer-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15,92,78,.1); }
.drawer-nav { display: flex; flex-direction: column; gap: 4px; }
.drawer-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 12px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: background .2s ease;
}
.drawer-nav a i { width: 20px; text-align: center; color: var(--primary); font-size: 15px; }
.drawer-nav a:hover { background: var(--bg-light); }
.drawer-nav a.active { background: rgba(15,92,78,.08); color: var(--primary); font-weight: 600; }
.drawer-bottom { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.drawer-hot-title { font-size: 13px; color: var(--text-weak); margin-bottom: 12px; }
.drawer-hot-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.drawer-hot-tags a {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--bg-light);
  font-size: 13px;
  color: var(--text-sec);
  text-decoration: none;
  transition: all .2s ease;
}
.drawer-hot-tags a:hover { background: rgba(15,92,78,.1); color: var(--primary); }
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,45,38,.4);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
}
.drawer-overlay.open { opacity: 1; visibility: visible; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  max-height: 720px;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-h) + var(--nav-h) + 40px);
  padding-bottom: 60px;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center 40%;
  z-index: 0;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,45,38,.92), rgba(15,92,78,.68));
}
.hero-content { position: relative; z-index: 2; padding-top: 40px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .04em;
  margin-bottom: 24px;
}
.hero-badge i { color: var(--accent); }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  max-width: 640px;
  margin-bottom: 20px;
  letter-spacing: .01em;
}
.hero h1 .highlight { color: var(--accent); position: relative; }
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.8);
  max-width: 540px;
  margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-points { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-point { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.75); font-size: 14px; }
.hero-point i { color: var(--accent); font-size: 14px; }

/* Floating data card */
.hero-float {
  position: absolute;
  right: 8%;
  bottom: 80px;
  z-index: 3;
  background: rgba(11,45,38,.55);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 16px;
  padding: 24px 28px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  max-width: 260px;
  animation: floatCard 5s ease-in-out infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-float .float-num { font-size: 32px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-float .float-label { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 4px; }
.hero-float .float-sep { width: 100%; height: 1px; background: rgba(255,255,255,.15); margin: 12px 0; }

/* Hero route decoration */
.hero-route {
  position: absolute;
  right: 16%;
  top: 30%;
  z-index: 2;
  opacity: .5;
  pointer-events: none;
}

/* ===== Stats Strip ===== */
.stats-strip { background: #fff; border-bottom: 1px solid var(--border); padding: 32px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; position: relative; padding: 8px 0; }
.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: -16px; top: 20%;
  height: 60%;
  width: 1px;
  background: var(--border);
}
.stat-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-num .stat-unit { font-size: 18px; color: var(--accent); font-weight: 700; }
.stat-label { font-size: 14px; color: var(--text-sec); margin-top: 6px; }

/* ===== Services Bento ===== */
.services-section { background: var(--bg); }
.bento-grid { display: grid; grid-template-columns: 1.3fr .7fr; grid-template-rows: auto auto; gap: 24px; }
.bento-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  box-shadow: var(--shadow-sm);
}
.bento-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.bento-card-wide { grid-column: span 1; }
.bento-card-narrow { grid-column: span 1; }
.bento-card-2 { grid-row: 2; }
.bento-num {
  position: absolute;
  right: 24px; top: 12px;
  font-size: 72px;
  font-weight: 800;
  color: rgba(15,92,78,.06);
  line-height: 1;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.bento-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: rgba(15,92,78,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 24px;
  margin-bottom: 20px;
  transition: background .3s ease, color .3s ease;
}
.bento-card:hover .bento-icon { background: var(--primary); color: #fff; }
.bento-title { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.bento-desc { font-size: 14px; line-height: 1.7; color: var(--text-sec); max-width: 90%; }
.bento-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.bento-tags span {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-light);
  font-size: 12px;
  color: var(--text-sec);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.bento-tags span i { color: var(--accent); font-size: 10px; }

/* ===== Advantages Dark ===== */
.advantages-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding: 96px 0;
}
.advantages-section::before {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: rgba(255,107,61,.05);
}
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
.adv-item { text-align: center; padding: 32px 16px; border-radius: var(--radius-lg); transition: background .3s ease; }
.adv-item:hover { background: rgba(255,255,255,.03); }
.adv-icon {
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: rgba(255,107,61,.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.adv-num {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}
.adv-num .adv-suffix { color: var(--accent); font-size: 22px; }
.adv-label { font-size: 15px; color: rgba(255,255,255,.75); font-weight: 500; }
.adv-desc { font-size: 13px; color: rgba(255,255,255,.45); margin-top: 4px; }

/* ===== News Section ===== */
.news-section { background: var(--bg); }
.news-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  box-shadow: var(--shadow-sm);
}
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: rgba(15,92,78,.3); }
.news-card-main { display: block; height: 100%; }
.news-card-thumb { position: relative; overflow: hidden; aspect-ratio: 3/2; }
.news-card-main .news-card-thumb { aspect-ratio: 16/10; }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-card-thumb img { transform: scale(1.04); }
.news-card-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,45,38,.15), transparent 40%);
}
.news-card-body { padding: 20px 24px 24px; }
.news-side-stack { display: flex; flex-direction: column; gap: 24px; height: 100%; }
.news-card-side { display: flex; gap: 16px; flex: 1; align-items: stretch; border-radius: var(--radius-lg); }
.news-card-side .news-card-thumb { width: 140px; flex-shrink: 0; aspect-ratio: 4/3; border-radius: 8px; overflow: hidden; margin: 12px; position: relative; }
.news-card-side .news-card-body { padding: 16px 16px 16px 0; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-card-side .news-card-thumb::after { display: none; }
.news-card-title { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.5; margin: 12px 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-title-sm { font-size: 15px; font-weight: 600; color: var(--text); line-height: 1.5; margin: 8px 0 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-summary { font-size: 14px; line-height: 1.7; color: var(--text-sec); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.news-card-meta { font-size: 12px; color: var(--text-weak); display: flex; align-items: center; gap: 6px; }
.news-card-meta i { font-size: 11px; }
.news-card:hover .news-card-title { color: var(--primary); }
.news-card:hover .news-card-title-sm { color: var(--primary); }
.news-empty {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  background: var(--bg-light);
  color: var(--text-sec);
  font-size: 15px;
}
.news-empty i { font-size: 32px; color: var(--text-weak); margin-bottom: 12px; display: block; }
.news-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  margin-top: 24px;
  transition: gap .3s ease;
}
.news-view-all:hover { gap: 12px; color: var(--primary); }

/* ===== Cases ===== */
.cases-section { background: #fff; }
.case-row {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 56px;
  align-items: center;
  padding: 48px 0;
}
.case-row + .case-row { border-top: 1px solid var(--border); }
.case-row-alt { grid-template-columns: 4fr 5fr; }
.case-row-alt .case-media { order: 2; }
.case-row-alt .case-text { order: 1; }
.case-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.case-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .6s ease; }
.case-media:hover img { transform: scale(1.03); }
.case-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,45,38,.1), transparent 60%);
}
.case-badge {
  position: absolute;
  left: 16px; bottom: 16px;
  z-index: 2;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}
.case-text .case-tag-row { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.case-text .case-tag-row span {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-light);
  font-size: 12px;
  color: var(--text-sec);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.case-text .case-tag-row span i { color: var(--accent); font-size: 10px; }
.case-title { font-size: 26px; font-weight: 800; color: var(--text); line-height: 1.4; margin-bottom: 14px; }
.case-desc { font-size: 15px; line-height: 1.8; color: var(--text-sec); margin-bottom: 20px; }
.case-metric-row { display: flex; gap: 32px; margin-top: 20px; }
.case-metric .metric-num { font-size: 28px; font-weight: 800; color: var(--primary); line-height: 1.2; font-variant-numeric: tabular-nums; }
.case-metric .metric-label { font-size: 13px; color: var(--text-weak); margin-top: 2px; }

/* ===== Process ===== */
.process-section { background: var(--bg); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-grid::before {
  content: "";
  position: absolute;
  top: 20px; left: 8%; right: 8%;
  height: 0;
  border-top: 2px dashed #C9D4CF;
  z-index: 0;
}
.process-item { text-align: center; position: relative; z-index: 1; }
.process-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border: 3px solid #fff;
  box-shadow: 0 4px 12px rgba(15,92,78,.25);
  transition: all .3s ease;
}
.process-item:hover .process-num { background: var(--accent); transform: scale(1.08); }
.process-title { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.process-desc { font-size: 14px; line-height: 1.7; color: var(--text-sec); max-width: 220px; margin: 0 auto; }
.process-item:hover .process-desc { color: var(--text); }

/* ===== FAQ ===== */
.faq-section { background: #fff; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-grid .faq-item:nth-child(2) { border-top: 1px solid var(--border); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s ease;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: all .3s ease;
}
.faq-item.open .faq-q .faq-icon { background: var(--accent); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease, opacity .3s ease;
  opacity: 0;
  padding: 0 24px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sec);
}
.faq-item.open .faq-a { max-height: 300px; opacity: 1; padding-bottom: 20px; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 96px 0;
  background: var(--primary);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -120px; right: -60px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -100px; left: 30%;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255,107,61,.1);
}
.cta-inner { text-align: center; position: relative; z-index: 2; }
.cta-title { font-size: 36px; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 14px; }
.cta-desc { font-size: 16px; color: rgba(255,255,255,.75); line-height: 1.7; max-width: 540px; margin: 0 auto 32px; }
.cta-btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 4fr 3fr 3fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  margin-bottom: 16px;
}
.footer-brand .footer-logo .logo-text { color: #fff; }
.footer-brand .footer-logo .logo-icon { background: var(--accent); }
.footer-about { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.6); margin-bottom: 24px; max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all .25s ease;
  text-decoration: none;
}
.footer-social a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-2px); }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  text-decoration: none;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact-info { display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: rgba(255,255,255,.6); }
.footer-contact-info span { display: flex; align-items: center; gap: 12px; }
.footer-contact-info i { color: var(--accent); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.35);
}
.footer-bottom a { color: rgba(255,255,255,.5); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Scroll Reveal ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }

/* ===== Responsive ===== */
@media screen and (min-width: 1024px) {
  .bento-card-2, .bento-card-4 { grid-column: span 1; }
}

@media screen and (max-width: 1023px) {
  .section { padding: 80px 0; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .process-grid::before { display: none; }
  .case-row, .case-row-alt { grid-template-columns: 1fr; gap: 32px; }
  .case-row-alt .case-media { order: 0; }
  .case-row-alt .case-text { order: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-item + .stat-item::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 40px; }
  .hero-float { display: none; }
  .adv-item { padding: 24px 12px; }
}

@media screen and (max-width: 767px) {
  .section { padding: 64px 0; }
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .header-search { display: none; }
  .header-trends { display: none; }
  .mobile-toggle { display: block; }
  .main-nav { display: none; }
  .header-top-inner { height: 56px; }
  .site-header.scrolled .header-top-inner { height: 48px; }
  .hero { min-height: auto; padding-top: calc(56px + 44px + 48px); padding-bottom: 40px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 15px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-points { gap: 16px; }
  .hero-point { font-size: 13px; }
  .section-title { font-size: 26px; }
  .bento-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .stat-num { font-size: 30px; }
  .advantages-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .adv-num { font-size: 32px; }
  .adv-item { padding: 20px 12px; }
  .news-side-stack { margin-top: 24px; }
  .process-grid { grid-template-columns: 1fr; gap: 32px; }
  .faq-grid { grid-template-columns: 1fr; gap: 0; }
  .faq-grid .faq-item:nth-child(2) { border-top: none; }
  .cta-title { font-size: 28px; }
  .cta-btn-row .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { padding: 16px 0; }
  .case-row { padding: 32px 0; }
  .case-metric-row { gap: 20px; }
  .news-card-side .news-card-thumb { width: 100px; margin: 8px; }
  .news-card-side .news-card-body { padding: 12px 12px 12px 0; }
  .section-header { margin-bottom: 32px; }
}

@media screen and (max-width: 575px) {
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 14px; line-height: 1.7; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .advantages-grid { grid-template-columns: 1fr 1fr; }
  .news-card-side { flex-direction: column; }
  .news-card-side .news-card-thumb { width: 100%; aspect-ratio: 16/9; margin: 0; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .news-card-side .news-card-body { padding: 16px; }
  .faq-q { font-size: 14px; }
  .cta-title { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root{
  --primary:#0F5C4E;
  --primary-dark:#0B2D26;
  --accent:#FF6B3D;
  --accent-dark:#F25A2C;
  --bg:#FAF7F2;
  --bg-muted:#F0EBE3;
  --white:#FFFFFF;
  --text:#1C2B27;
  --text-secondary:#5B6B64;
  --text-weak:#9AA8A2;
  --border:#E3DDD3;
  --link:#2D8C76;
  --shadow:0 1px 4px rgba(11,45,38,0.06);
  --shadow-lg:0 10px 30px rgba(11,45,38,0.12);
  --radius:12px;
  --radius-btn:999px;
  --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:var(--link);transition:var(--transition)}
a:hover{color:var(--primary)}
ul,ol{list-style:none}
button{background:none;border:none;cursor:pointer;font-family:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.grid-container{max-width:1200px}
.text-center{text-align:center}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.site-header.scrolled{
  background:rgba(250,247,242,0.92);
  backdrop-filter:blur(12px);
  box-shadow:0 4px 20px rgba(11,45,38,0.08);
}
.header-top{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;padding:0 24px;max-width:1200px;margin:0 auto;
  transition:var(--transition);
}
.site-header.scrolled .header-top{height:48px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{
  width:38px;height:38px;background:var(--primary);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.02em;
  transition:var(--transition);
}
.site-header.scrolled .logo-icon{width:32px;height:32px;font-size:11px}
.logo-text{font-size:20px;font-weight:800;color:var(--text);letter-spacing:.01em;transition:var(--transition)}
.site-header.scrolled .logo-text{font-size:18px}
.header-search{
  display:flex;align-items:center;background:var(--bg-muted);
  border-radius:var(--radius-btn);height:36px;padding:0 4px 0 16px;
  width:320px;border:1px solid var(--border);transition:var(--transition);
  margin:0 16px;
}
.header-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,92,78,0.15);background:#fff}
.header-search input{
  flex:1;background:transparent;border:none;outline:none;
  font-size:13px;color:var(--text);height:100%;
}
.header-search input::placeholder{color:var(--text-weak)}
.header-search button{
  width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-secondary);transition:var(--transition);
}
.header-search button:hover{color:var(--primary);background:rgba(15,92,78,0.08)}
.header-hot{
  display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-weak);
  margin-left:auto;white-space:nowrap;overflow:hidden;
}
.header-hot .hot-label{color:var(--accent);font-weight:600;flex-shrink:0}
.hot-tags{display:flex;gap:4px;overflow:hidden}
.hot-tags a{color:var(--text-secondary);font-size:12px;background:var(--bg-muted);padding:2px 10px;border-radius:999px;transition:var(--transition);flex-shrink:0}
.hot-tags a:hover{color:#fff;background:var(--primary)}
.mobile-toggle{display:none;width:40px;height:40px;border-radius:50%;align-items:center;justify-content:center;color:var(--text);font-size:20px;flex-shrink:0}

.header-nav{
  border-top:1px solid var(--border);
  transition:var(--transition);
}
.site-header.scrolled .header-nav{border-top-color:rgba(227,221,211,0.6)}
.main-nav{
  display:flex;align-items:center;gap:32px;
  height:44px;max-width:1200px;margin:0 auto;padding:0 24px;
  transition:var(--transition);
}
.site-header.scrolled .main-nav{height:38px}
.nav-link{
  color:var(--text-secondary);font-size:15px;font-weight:500;
  position:relative;padding:10px 0;white-space:nowrap;
  transition:var(--transition);
}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--primary);border-radius:2px;transition:var(--transition);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{width:100%}

/* ===== Hero ===== */
.category-hero{
  position:relative;
  background:linear-gradient(135deg, rgba(11,45,38,0.9), rgba(15,92,78,0.6)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:180px 0 80px;
  margin-top:108px;
  color:#fff;
}
.category-hero::before{
  content:'';position:absolute;right:0;top:0;bottom:0;width:45%;
  background:radial-gradient(circle at 70% 30%, rgba(255,107,61,0.18), transparent 70%);
  pointer-events:none;
}
.category-hero-content{position:relative;z-index:2;max-width:680px}
.category-hero .hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;font-size:13px;font-weight:600;
  padding:6px 18px;border-radius:999px;margin-bottom:24px;
  letter-spacing:.04em;
}
.category-hero .hero-tag i{color:var(--accent)}
.category-hero h1{
  font-size:44px;font-weight:800;line-height:1.2;
  margin-bottom:20px;letter-spacing:.01em;
}
.category-hero h1 span{color:var(--accent)}
.category-hero p.hero-desc{
  font-size:16px;line-height:1.8;color:rgba(255,255,255,0.85);
  margin-bottom:32px;max-width:560px;
}
.category-hero .hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 32px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:var(--transition);white-space:nowrap;border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,107,61,0.35)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.hero-stats{
  display:flex;gap:40px;margin-top:48px;padding-top:32px;
  border-top:1px solid rgba(255,255,255,0.15);
}
.hero-stats .stat-item .num{font-size:28px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.hero-stats .stat-item .label{font-size:13px;color:rgba(255,255,255,0.7);margin-top:2px}

/* ===== Section ===== */
.section{padding:96px 0}
.section-alt{background:var(--bg-muted)}
.section-dark{background:var(--primary-dark);color:#fff}
.section-head{max-width:640px;margin-bottom:56px}
.section-head .section-sub{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:rgba(15,92,78,0.08);padding:4px 16px;border-radius:999px;
  margin-bottom:16px;letter-spacing:.05em;
}
.section-head .section-sub i{font-size:12px}
.section-head h2{font-size:32px;font-weight:800;color:var(--text);line-height:1.3;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--text-secondary);line-height:1.7}
.section-head.light h2{color:#fff}
.section-head.light .section-sub{background:rgba(255,255,255,0.12);color:#fff}
.section-head.light p{color:rgba(255,255,255,0.7)}

/* ===== Guide List (左右图文) ===== */
.guide-list{display:flex;flex-direction:column;gap:48px}
.guide-item{
  display:grid;grid-template-columns:52% 48%;gap:48px;align-items:center;
  background:var(--white);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);border:1px solid var(--border);
  transition:var(--transition);
}
.guide-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:rgba(15,92,78,0.3)}
.guide-item:nth-child(even){direction:rtl}
.guide-item:nth-child(even) .guide-content{direction:ltr}
.guide-item:nth-child(even) .guide-media{direction:ltr}
.guide-media{border-radius:10px;overflow:hidden;height:100%;min-height:260px}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;aspect-ratio:3/2}
.guide-item:hover .guide-media img{transform:scale(1.03)}
.guide-content{padding:8px 4px}
.guide-meta{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.guide-badge{
  display:inline-flex;align-items:center;gap:4px;
  background:rgba(15,92,78,0.1);color:var(--primary);
  font-size:12px;font-weight:600;padding:3px 12px;border-radius:4px;
}
.guide-time{font-size:12px;color:var(--text-weak);display:flex;align-items:center;gap:4px}
.guide-time i{font-size:11px}
.guide-content h3{font-size:22px;font-weight:800;color:var(--text);margin-bottom:12px;line-height:1.4}
.guide-content h3 a{color:var(--text)}
.guide-content h3 a:hover{color:var(--primary)}
.guide-content p.desc{
  font-size:14px;color:var(--text-secondary);line-height:1.8;
  margin-bottom:16px;display:inline;
}
.guide-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.guide-tags span{
  background:var(--bg-muted);color:var(--text-secondary);
  font-size:12px;padding:3px 10px;border-radius:4px;
}
.guide-link{
  font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}

/* ===== 数据特色 ===== */
.feature-data{padding:80px 0}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.data-item{position:relative;padding:24px 16px}
.data-item:not(:last-child)::after{
  content:'';position:absolute;right:-16px;top:50%;transform:translateY(-50%);
  width:1px;height:64px;background:rgba(255,255,255,0.1);
}
.data-num{
  font-size:42px;font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
  font-family:"DIN Alternate","Georgia",serif;
}
.data-num .suffix{color:var(--accent)}
.data-label{font-size:14px;color:rgba(255,255,255,0.7);margin-top:8px}
.data-desc{font-size:12px;color:rgba(255,255,255,0.4);margin-top:2px}

/* ===== 流程 ===== */
.process-section{background:var(--bg)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative}
.process-item{position:relative;text-align:center;padding:32px 16px 0}
.process-step{
  width:56px;height:56px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;margin:0 auto 20px;
  box-shadow:0 0 0 6px rgba(15,92,78,0.12);
  font-variant-numeric:tabular-nums;
}
.process-item::before{
  content:'';position:absolute;top:56px;left:calc(50% + 32px);
  width:calc(100% - 64px);height:2px;
  background-image:linear-gradient(90deg,var(--border) 60%,transparent 60%);
  background-size:10px 2px;background-repeat:repeat-x;
}
.process-item:last-child::before{display:none}
.process-item h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:8px}
.process-item p{font-size:13px;color:var(--text-secondary);line-height:1.6}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);margin-bottom:16px;overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(15,92,78,0.3)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;cursor:pointer;gap:16px;
}
.faq-question .q-icon{
  width:28px;height:28px;border-radius:50%;
  background:rgba(15,92,78,0.1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;flex-shrink:0;
}
.faq-question h3{font-size:15px;font-weight:600;color:var(--text);flex:1;line-height:1.5}
.faq-question .faq-toggle{
  width:24px;height:24px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-weak);font-size:14px;transition:var(--transition);
}
.faq-item.active .faq-toggle{transform:rotate(45deg);color:var(--accent)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
  padding:0 24px;
}
.faq-item.active .faq-answer{max-height:240px;padding:0 24px 20px}
.faq-answer p{font-size:14px;color:var(--text-secondary);line-height:1.8}

/* ===== CTA ===== */
.cta-section{
  position:relative;background:var(--primary);
  padding:80px 0;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;right:-10%;top:-50%;width:60%;height:200%;
  background:radial-gradient(circle, rgba(255,107,61,0.25), transparent 60%);
  pointer-events:none;
}
.cta-inner{text-align:center;position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:32px;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.3}
.cta-inner p{font-size:15px;color:rgba(255,255,255,0.85);margin-bottom:32px;line-height:1.7}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-actions .btn-primary:hover{box-shadow:0 8px 24px rgba(255,255,255,0.15)}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  padding:64px 0 0;color:rgba(255,255,255,0.8);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-icon{
  background:var(--accent);width:36px;height:36px;border-radius:10px;
  font-size:12px;font-weight:800;
}
.footer-logo .logo-text{font-size:20px;font-weight:800;color:#fff}
.footer-about{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.6);margin-bottom:24px;max-width:280px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.15);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,0.7);font-size:15px;transition:var(--transition);
}
.footer-social a:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,0.6);font-size:14px;transition:var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact-info{display:flex;flex-direction:column;gap:12px}
.footer-contact-info span{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,0.6)}
.footer-contact-info i{width:20px;color:var(--accent);font-size:14px;text-align:center}
.footer-bottom{
  padding:24px 0;display:flex;align-items:center;
  font-size:12px;color:rgba(255,255,255,0.4);flex-wrap:wrap;gap:8px;
}
.footer-bottom a{color:rgba(255,255,255,0.4);transition:var(--transition)}
.footer-bottom a:hover{color:var(--accent)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .header-search{width:220px;margin:0 8px}
  .header-hot .hot-tags a:nth-child(n+3){display:none}
  .guide-item{grid-template-columns:1fr 1fr;gap:32px;padding:20px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .data-item:nth-child(2)::after{display:none}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .process-item::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:768px){
  .header-top{padding:0 16px}
  .header-search{display:none}
  .header-hot{display:none}
  .mobile-toggle{display:flex}
  .header-nav{
    display:none;position:fixed;top:64px;left:0;right:0;
    background:var(--bg);box-shadow:var(--shadow);
    border-top:1px solid var(--border);
  }
  .header-nav.open{display:block}
  .site-header.scrolled .header-nav{top:48px}
  .main-nav{
    flex-direction:column;align-items:flex-start;gap:0;
    padding:0;height:auto;
  }
  .nav-link{width:100%;padding:16px 24px;font-size:16px;border-bottom:1px solid var(--border)}
  .nav-link::after{display:none}
  .nav-link.active{background:rgba(15,92,78,0.06)}
  .category-hero{padding:140px 0 56px;margin-top:64px}
  .category-hero h1{font-size:32px}
  .category-hero p.hero-desc{font-size:15px}
  .hero-stats{flex-wrap:wrap;gap:24px}
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .guide-item,.guide-item:nth-child(even){grid-template-columns:1fr;gap:20px;direction:ltr}
  .guide-media{min-height:0;aspect-ratio:3/2}
  .guide-media img{aspect-ratio:3/2}
  .guide-content h3{font-size:19px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .data-num{font-size:32px}
  .process-grid{grid-template-columns:1fr;gap:32px}
  .process-item{padding:16px;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .category-hero h1{font-size:26px}
  .category-hero .hero-actions .btn{width:100%}
  .hero-stats .stat-item{width:calc(50% - 12px)}
  .guide-item{padding:16px}
  .data-grid{grid-template-columns:1fr 1fr;gap:12px}
  .data-item{padding:16px 8px}
  .data-item:nth-child(even)::after{display:none}
  .btn{width:100%}
  .cta-inner h2{font-size:24px}
}

/* roulang page: category2 */
:root{
  --primary:#0F5C4E;
  --primary-light:#2D8C76;
  --accent:#FF6B3D;
  --accent-dark:#F25A2C;
  --dark:#0B2D26;
  --dark-2:#113A30;
  --bg:#FAF7F2;
  --bg-alt:#F0EBE3;
  --card:#FFFFFF;
  --text:#1C2B27;
  --text-sub:#5B6B64;
  --text-weak:#9AA8A2;
  --border:#E3DDD3;
  --radius:12px;
  --radius-btn:999px;
  --shadow:0 1px 4px rgba(11,45,38,.06);
  --shadow-hover:0 10px 30px rgba(11,45,38,.12);
  --transition:.25s ease;
  --font:"PingFang SC","Hiragino Sans GB","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);font-size:15px;line-height:1.7;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
input::placeholder{color:var(--text-weak)}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 32px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;line-height:1;cursor:pointer;transition:all var(--transition);text-decoration:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(255,107,61,.25)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 18px rgba(255,107,61,.35)}
.btn-outline{border:1px solid rgba(255,255,255,.75);color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-outline-dark{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline-dark:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:#E8EFEB}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--primary);background:rgba(15,92,78,.08);border-radius:4px;padding:4px 12px;margin-bottom:16px}
.section-head .eyebrow{background:rgba(15,92,78,.08)}
.section-dark .eyebrow{background:rgba(255,107,61,.2);color:#FF8D5E}
.section-title{font-size:32px;line-height:1.3;font-weight:700;color:var(--text)}
.section-sub{font-size:15px;color:var(--text-sub);margin-top:12px;line-height:1.7}
.section-dark .section-title{color:#fff}
.section-dark .section-sub{color:rgba(232,239,235,.72)}

/* Header */
.site-header{position:sticky;top:0;z-index:999;background:rgba(250,247,242,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow var(--transition),background var(--transition)}
.site-header.scrolled{box-shadow:var(--shadow-hover);background:rgba(250,247,242,.96)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0;transition:padding var(--transition)}
.logo-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;letter-spacing:-.02em;text-transform:uppercase}
.logo-text{font-size:20px;font-weight:800;color:var(--primary);letter-spacing:.01em}
.header-search{display:flex;align-items:center;flex:1;max-width:420px;background:var(--bg-alt);border-radius:999px;height:38px;padding:0 8px 0 16px;border:1px solid transparent;transition:border-color var(--transition)}
.header-search input{flex:1;font-size:14px;background:transparent;color:var(--text);height:100%}
.header-search input:focus{outline:none}
.header-search button{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--transition)}
.header-search button:hover{background:var(--accent)}
.header-trends{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-sub);white-space:nowrap}
.trend-label{background:var(--accent);color:#fff;font-size:11px;font-weight:700;border-radius:4px;padding:2px 6px}
.header-trends a{color:var(--text-sub);transition:color var(--transition)}
.header-trends a:hover{color:var(--accent)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:8px;background:var(--bg-alt);color:var(--text);font-size:18px;cursor:pointer;align-items:center;justify-content:center;transition:background var(--transition)}
.menu-toggle:hover{background:var(--border)}
.main-nav{display:flex;align-items:center;gap:28px;padding-bottom:14px;flex-wrap:wrap}
.nav-link{font-size:15px;font-weight:500;color:var(--text);position:relative;padding-bottom:8px;transition:color var(--transition)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--primary);opacity:0;transform:scaleX(.4);transition:all var(--transition)}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.site-header.scrolled .header-top{padding:10px 0}
.site-header.scrolled .main-nav{padding-bottom:10px}

/* Hero */
.cat-hero{position:relative;min-height:480px;display:flex;align-items:center;overflow:hidden;background:var(--dark)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,45,38,.92),rgba(15,92,78,.72) 55%)}
.hero-content{position:relative;z-index:2;padding:80px 24px}
.hero-eyebrow{display:inline-block;background:rgba(255,107,61,.25);color:#FFB08D;font-size:13px;font-weight:600;letter-spacing:.06em;border-radius:4px;padding:6px 14px;margin-bottom:20px}
.cat-hero h1{font-size:48px;font-weight:800;color:#fff;line-height:1.2;max-width:640px;margin-bottom:16px}
.cat-hero .hero-sub{font-size:17px;line-height:1.7;color:rgba(255,255,255,.85);max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{display:flex;gap:24px;margin-top:40px;color:rgba(255,255,255,.65);font-size:13px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}

/* Data Stats */
.stats-section{background:var(--bg);padding:48px 0;border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center;padding:16px;position:relative}
.stat-item:nth-child(n+2)::before{content:"";position:absolute;left:0;top:20%;height:60%;width:1px;background:var(--border)}
.stat-num{font-size:40px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;font-family:"DIN Alternate",Georgia,"PingFang SC",sans-serif;line-height:1.2}
.stat-num .unit{font-size:20px;margin-left:2px}
.stat-label{font-size:14px;color:var(--text-sub);margin-top:8px}

/* Card Grid */
.cards-section{background:var(--bg);padding:96px 0}
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:all var(--transition);border:1px solid var(--border)}
.info-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:rgba(15,92,78,.3)}
.card-stripe{height:6px;flex-shrink:0}
.card-stripe.c-st-1{background:var(--primary)}
.card-stripe.c-st-2{background:var(--accent)}
.card-stripe.c-st-3{background:#4E7CB1}
.card-stripe.c-st-4{background:#7B8D2A}
.card-stripe.c-st-5{background:#9A5AA0}
.card-stripe.c-st-6{background:#D68C2C}
.info-card-img{aspect-ratio:3/2;overflow:hidden;position:relative}
.info-card-img img{width:100%;height:100%;transition:transform .4s ease}
.info-card:hover .info-card-img img{transform:scale(1.04)}
.card-badge{position:absolute;top:12px;left:12px;background:rgba(11,45,38,.8);color:#fff;font-size:12px;font-weight:600;border-radius:4px;padding:4px 10px;backdrop-filter:blur(4px)}
.info-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.info-card-body h3{font-size:18px;font-weight:700;color:var(--text);line-height:1.4;margin-bottom:10px;transition:color var(--transition)}
.info-card:hover .info-card-body h3{color:var(--primary)}
.info-card-body p{font-size:14px;color:var(--text-sub);line-height:1.65;margin-bottom:16px;flex:1}
.card-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-weak)}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-weak)}
.card-tag{font-size:12px;color:var(--primary);background:rgba(15,92,78,.08);border-radius:4px;padding:3px 8px;font-weight:500}

/* Dark Feature */
.dark-feature{background:var(--dark);color:#E8EFEB;position:relative;overflow:hidden}
.dark-feature::before{content:"";position:absolute;top:-40%;right:-20%;width:480px;height:480px;border-radius:50%;background:rgba(255,107,61,.08);pointer-events:none}
.dark-feature::after{content:"";position:absolute;bottom:-60%;left:-10%;width:520px;height:520px;border-radius:50%;background:rgba(15,92,78,.25);pointer-events:none}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;z-index:1}
.feature-item{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:36px 28px;transition:transform var(--transition),border-color var(--transition)}
.feature-item:hover{transform:translateY(-4px);border-color:rgba(255,107,61,.4)}
.feature-icon{width:56px;height:56px;border-radius:14px;background:rgba(255,107,61,.18);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--accent);margin-bottom:24px}
.feature-item h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px}
.feature-item p{font-size:14px;line-height:1.65;color:rgba(232,239,235,.7)}

/* Showcase / Featured */
.showcase-section{background:var(--bg-alt);padding:96px 0}
.showcase-item{display:flex;align-items:center;gap:64px;margin-bottom:64px}
.showcase-item:last-child{margin-bottom:0}
.showcase-item.reverse .showcase-media{order:2}
.showcase-item.reverse .showcase-text{order:1}
.showcase-media{flex:0 0 56%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-hover)}
.showcase-media img{width:100%;aspect-ratio:16/10}
.showcase-text{flex:1}
.showcase-text .eyebrow{margin-bottom:12px}
.showcase-text h3{font-size:28px;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:16px}
.showcase-text p{font-size:15px;color:var(--text-sub);line-height:1.75;margin-bottom:20px}
.showcase-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:12px;color:var(--primary);background:#fff;border:1px solid var(--border);border-radius:4px;padding:4px 10px;transition:all var(--transition)}
.tag:hover{border-color:var(--primary);background:rgba(15,92,78,.05)}

/* Flow */
.flow-section{background:var(--bg)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;counter-reset:step}
.flow-step{position:relative;padding-top:16px}
.flow-step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-20px;right:0;font-size:56px;font-weight:800;color:rgba(15,92,78,.08);font-family:"DIN Alternate",Georgia,sans-serif;line-height:1;z-index:0}
.step-num{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;margin-bottom:20px;position:relative;z-index:1;box-shadow:0 4px 12px rgba(15,92,78,.2)}
.flow-step h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--text-sub);line-height:1.65}
.flow-connector{position:absolute;top:24px;left:-32px;right:auto;width:32px;border-top:1px dashed #C9D4CF;z-index:0}

/* FAQ */
.faq-section{background:var(--bg-alt)}
.faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:0 64px}
.faq-item{border-top:1px solid var(--border);padding:20px 0;transition:background var(--transition)}
.faq-item:last-child{border-bottom:1px solid var(--border)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;font-size:15px;font-weight:600;color:var(--text);transition:color var(--transition)}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--primary);border:1px solid var(--border);transition:all .3s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff;border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:500px;padding-top:12px}
.faq-a p{font-size:14px;color:var(--text-sub);line-height:1.7;padding:0 8px 4px 0}
.faq-column-gap{}

/* CTA */
.cta-section{background:var(--primary);color:#fff;text-align:center;padding:80px 0;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-80px;left:10%;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-section::after{content:"";position:absolute;bottom:-100px;right:5%;width:320px;height:320px;border-radius:50%;background:rgba(255,107,61,.12)}
.cta-title{font-size:36px;font-weight:800;margin-bottom:16px;position:relative;z-index:1}
.cta-sub{font-size:16px;color:rgba(255,255,255,.8);max-width:520px;margin:0 auto 32px;position:relative;z-index:1;line-height:1.7}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}
.cta-actions .btn-primary{background:var(--accent)}
.cta-actions .btn-primary:hover{background:var(--accent-dark)}

/* Footer */
.site-footer{background:var(--dark);color:rgba(232,239,235,.8);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:56px;padding-bottom:48px}
.footer-logo{display:inline-flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-logo .logo-icon{background:rgba(255,255,255,.15);color:#fff}
.footer-logo .logo-text{color:#fff;font-size:20px}
.footer-about{font-size:14px;color:rgba(232,239,235,.65);line-height:1.7;margin-bottom:20px;max-width:320px}
.footer-social{display:flex;gap:12px}
.footer-social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);font-size:14px;transition:all var(--transition)}
.footer-social a:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(232,239,235,.65);transition:color var(--transition)}
.footer-links a:hover{color:var(--accent)}
.footer-contact-info{display:flex;flex-direction:column;gap:12px}
.footer-contact-info span{font-size:14px;color:rgba(232,239,235,.65);display:inline-flex;align-items:center;gap:10px}
.footer-contact-info i{font-size:14px;color:var(--accent);width:16px}
.footer-bottom{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:12px;color:rgba(232,239,235,.45)}
.footer-bottom a{color:rgba(232,239,235,.45);transition:color var(--transition)}
.footer-bottom a:hover{color:var(--accent)}

/* Responsive */
@media (max-width:1023px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .stat-item:nth-child(n+2)::before{display:none}
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr 1fr;gap:24px}
  .showcase-item{flex-direction:column;gap:32px}
  .showcase-item.reverse{flex-direction:column}
  .showcase-item.reverse .showcase-media{order:0}
  .showcase-item.reverse .showcase-text{order:0}
  .showcase-media{flex:0 0 auto;width:100%}
  .flow-grid{grid-template-columns:1fr 1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .grid-container{padding-left:16px;padding-right:16px}
  .header-top{flex-wrap:wrap;gap:12px;padding:12px 0}
  .logo-text{font-size:18px}
  .header-search{order:3;max-width:100%;flex-basis:100%}
  .header-trends{display:none}
  .menu-toggle{display:flex}
  .main-nav{display:none;flex-direction:column;width:100%;align-items:flex-start;gap:0;padding:8px 0 16px}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 0;width:100%;font-size:16px;border-bottom:1px solid rgba(227,221,211,.4)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--primary);font-weight:700}
  .cat-hero{min-height:520px}
  .cat-hero h1{font-size:32px}
  .cat-hero .hero-sub{font-size:15px}
  .hero-content{padding:56px 16px}
  .hero-meta{flex-direction:column;gap:8px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-num{font-size:28px}
  .cards-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .cta-title{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .flow-grid{grid-template-columns:1fr}
  .showcase-text h3{font-size:22px}
  .section-title{font-size:26px}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-num{font-size:24px}
  .btn{height:44px;padding:0 24px;font-size:15px}
  .cat-hero h1{font-size:28px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
}

/* roulang page: article */
:root {
        --primary: #0F5C4E;
        --primary-dark: #0B2D26;
        --primary-light: rgba(15, 92, 78, 0.08);
        --accent: #FF6B3D;
        --accent-dark: #F25A2C;
        --bg-page: #FAF7F2;
        --bg-light: #F0EBE3;
        --card-bg: #FFFFFF;
        --text-primary: #1C2B27;
        --text-secondary: #5B6B64;
        --text-muted: #9AA8A2;
        --border: #E3DDD3;
        --link: #2D8C76;
        --radius-card: 12px;
        --radius-btn: 999px;
        --radius-input: 8px;
        --shadow-sm: 0 1px 4px rgba(11, 45, 38, 0.06);
        --shadow-md: 0 10px 30px rgba(11, 45, 38, 0.12);
        --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        --container-w: 1200px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--bg-page);
        color: var(--text-primary);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: var(--link);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--primary);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }
    ul,
    ol {
        list-style: none;
    }
    .container {
        max-width: var(--container-w);
        margin: 0 auto;
        padding: 0 24px;
    }
    .grid-container {
        max-width: var(--container-w);
        padding-left: 24px;
        padding-right: 24px;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 44px;
        padding: 0 28px;
        border-radius: var(--radius-btn);
        border: 1px solid transparent;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        white-space: nowrap;
    }
    .btn:hover {
        transform: translateY(-2px);
    }
    .btn:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        color: #fff;
    }
    .btn-accent {
        background: var(--accent);
        color: #fff;
    }
    .btn-accent:hover {
        background: var(--accent-dark);
        color: #fff;
    }
    .btn-outline {
        background: transparent;
        border-color: var(--primary);
        color: var(--primary);
    }
    .btn-outline:hover {
        background: var(--primary);
        color: #fff;
    }
    .btn-light {
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.6);
        color: #fff;
    }
    .btn-light:hover {
        background: rgba(255, 255, 255, 0.28);
        color: #fff;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        padding: 3px 10px;
        border-radius: 4px;
        font-size: 12px;
        font-weight: 600;
        background: var(--primary-light);
        color: var(--primary);
        letter-spacing: 0.02em;
        line-height: 1.5;
    }
    .tag {
        display: inline-flex;
        align-items: center;
        padding: 4px 12px;
        border-radius: 4px;
        font-size: 13px;
        font-weight: 500;
        background: var(--bg-light);
        color: var(--text-secondary);
        border: 1px solid var(--border);
        transition: var(--transition);
    }
    .tag:hover {
        background: var(--primary-light);
        color: var(--primary);
        border-color: rgba(15, 92, 78, 0.25);
    }
    .section-title {
        font-size: 28px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.3;
        letter-spacing: 0.01em;
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--text-secondary);
        margin-top: 8px;
    }

    /* ============ Header ============ */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(250, 247, 242, 0.92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 1px 8px rgba(11, 45, 38, 0.05);
        transition: box-shadow 0.3s ease;
    }
    .site-header.scrolled {
        box-shadow: 0 4px 20px rgba(11, 45, 38, 0.1);
    }
    .site-header.scrolled .header-top {
        height: 48px;
    }
    .site-header.scrolled .header-bottom {
        min-height: 38px;
    }
    .header-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        height: 64px;
        transition: height 0.3s ease;
    }
    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        background: var(--primary);
        color: #fff;
        font-weight: 800;
        font-size: 14px;
        border-radius: 8px;
        letter-spacing: 0.02em;
    }
    .logo-text {
        font-size: 20px;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: 0.02em;
    }
    .header-search {
        display: flex;
        align-items: center;
        flex: 0 0 360px;
        max-width: 400px;
        height: 36px;
        background: var(--bg-light);
        border-radius: 999px;
        border: 1px solid transparent;
        transition: var(--transition);
    }
    .header-search:focus-within {
        background: var(--card-bg);
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(15, 92, 78, 0.15);
    }
    .header-search input {
        flex: 1;
        min-width: 0;
        border: none;
        outline: none;
        background: transparent;
        padding: 0 16px;
        font-size: 14px;
        color: var(--text-primary);
        height: 100%;
    }
    .header-search input::placeholder {
        color: var(--text-muted);
    }
    .header-search button {
        width: 36px;
        height: 36px;
        border: none;
        background: transparent;
        color: var(--text-secondary);
        cursor: pointer;
        border-radius: 0 999px 999px 0;
        font-size: 14px;
        transition: var(--transition);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .header-search button:hover {
        color: var(--primary);
    }
    .header-hot {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        white-space: nowrap;
        overflow: hidden;
    }
    .hot-label {
        color: var(--accent);
        font-weight: 600;
    }
    .header-hot a {
        color: var(--text-secondary);
        padding: 2px 6px;
        border-radius: 4px;
        transition: var(--transition);
    }
    .header-hot a:hover {
        color: var(--primary);
        background: var(--primary-light);
    }
    .nav-toggle {
        display: none;
        width: 40px;
        height: 40px;
        border-radius: 8px;
        border: 1px solid var(--border);
        background: var(--card-bg);
        cursor: pointer;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        transition: var(--transition);
    }
    .nav-toggle span {
        display: block;
        width: 18px;
        height: 2px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: var(--transition);
    }
    .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);
    }
    .header-bottom {
        border-top: 1px solid var(--border);
        min-height: 44px;
        transition: min-height 0.3s ease;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 4px;
        min-height: 44px;
    }
    .nav-link {
        display: inline-flex;
        align-items: center;
        padding: 8px 16px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-primary);
        border-radius: 6px;
        position: relative;
        transition: var(--transition);
    }
    .nav-link:hover {
        color: var(--primary);
        background: var(--primary-light);
    }
    .nav-link.active {
        color: var(--primary);
        font-weight: 600;
    }
    .nav-link.active::after {
        content: '';
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: -2px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }
    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(11, 45, 38, 0.5);
        z-index: 1090;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    .nav-overlay.open {
        opacity: 1;
        visibility: visible;
    }

    /* ============ Breadcrumb ============ */
    .breadcrumb-area {
        background: var(--bg-light);
        border-bottom: 1px solid var(--border);
        padding: 16px 0;
        margin-top: 108px;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        font-size: 13px;
        color: var(--text-muted);
    }
    .breadcrumb a {
        color: var(--text-secondary);
        transition: var(--transition);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .sep {
        color: var(--border);
        font-size: 12px;
    }
    .breadcrumb .current {
        color: var(--text-primary);
        font-weight: 500;
        max-width: 260px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* ============ Article Layout ============ */
    .article-section {
        padding: 40px 0 64px;
        background: var(--bg-page);
    }
    .article-main {
        min-width: 0;
    }
    .article-sidebar {
        min-width: 0;
    }
    .article-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-sm);
        border: 1px solid rgba(227, 221, 211, 0.6);
        overflow: hidden;
    }
    .article-header {
        padding: 40px 44px 24px;
        border-bottom: 1px solid var(--border);
    }
    .article-title {
        font-size: 30px;
        font-weight: 800;
        line-height: 1.35;
        color: var(--text-primary);
        letter-spacing: 0.01em;
        margin-bottom: 16px;
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 20px;
        font-size: 13px;
        color: var(--text-secondary);
    }
    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .article-meta i {
        color: var(--text-muted);
        font-size: 12px;
        width: 14px;
        text-align: center;
    }
    .article-content {
        padding: 32px 44px 40px;
        font-size: 16px;
        line-height: 1.85;
        color: var(--text-primary);
        word-break: break-word;
    }
    .article-content p {
        margin-bottom: 22px;
    }
    .article-content h2 {
        font-size: 24px;
        font-weight: 700;
        margin-top: 48px;
        margin-bottom: 18px;
        color: var(--text-primary);
        line-height: 1.4;
    }
    .article-content h3 {
        font-size: 20px;
        font-weight: 700;
        margin-top: 36px;
        margin-bottom: 16px;
        color: var(--text-primary);
        line-height: 1.4;
    }
    .article-content h4 {
        font-size: 16px;
        font-weight: 700;
        margin-top: 28px;
        margin-bottom: 12px;
        color: var(--text-primary);
        line-height: 1.5;
    }
    .article-content img {
        border-radius: 8px;
        margin: 28px 0;
        box-shadow: var(--shadow-sm);
    }
    .article-content blockquote {
        border-left: 4px solid var(--primary);
        background: var(--bg-light);
        padding: 18px 24px;
        border-radius: 0 8px 8px 0;
        margin: 28px 0;
        font-style: italic;
        color: var(--text-secondary);
    }
    .article-content ul,
    .article-content ol {
        margin: 18px 0 24px;
        padding-left: 24px;
    }
    .article-content ul {
        list-style: disc;
    }
    .article-content ol {
        list-style: decimal;
    }
    .article-content li {
        margin-bottom: 8px;
        line-height: 1.7;
    }
    .article-content a {
        color: var(--link);
        text-decoration: underline;
        text-underline-offset: 2px;
    }
    .article-content a:hover {
        color: var(--primary);
    }
    .article-content table {
        width: 100%;
        border-collapse: collapse;
        margin: 28px 0;
        font-size: 14px;
    }
    .article-content th,
    .article-content td {
        border: 1px solid var(--border);
        padding: 12px 16px;
        text-align: left;
    }
    .article-content th {
        background: var(--bg-light);
        font-weight: 600;
        color: var(--text-primary);
    }
    .article-content hr {
        border: none;
        border-top: 1px solid var(--border);
        margin: 32px 0;
    }
    .article-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        padding: 20px 44px;
        border-top: 1px solid var(--border);
    }
    .article-pager {
        display: flex;
        gap: 16px;
        padding: 20px 44px 28px;
        border-top: 1px solid var(--border);
    }
    .post-nav-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 4px;
        background: var(--bg-light);
        border-radius: 8px;
        padding: 14px 18px;
        border: 1px solid transparent;
        transition: var(--transition);
        min-width: 0;
    }
    .post-nav-item:hover {
        border-color: rgba(15, 92, 78, 0.25);
        background: var(--primary-light);
    }
    .pager-label {
        font-size: 12px;
        color: var(--text-muted);
        font-weight: 500;
    }
    .pager-title {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-primary);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .article-back {
        padding: 0 44px 32px;
    }
    .article-empty {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-sm);
        border: 1px dashed var(--border);
        padding: 80px 40px;
        text-align: center;
    }
    .article-empty i {
        font-size: 48px;
        color: var(--text-muted);
        margin-bottom: 20px;
        display: block;
    }
    .article-empty h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 12px;
    }
    .article-empty p {
        font-size: 15px;
        color: var(--text-secondary);
        margin-bottom: 24px;
    }

    /* ============ Sidebar ============ */
    .sidebar-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid rgba(227, 221, 211, 0.6);
        box-shadow: var(--shadow-sm);
        padding: 24px;
        margin-bottom: 24px;
    }
    .sidebar-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 18px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary);
        display: inline-block;
        letter-spacing: 0.01em;
    }
    .hot-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        transition: var(--transition);
    }
    .hot-list li:last-child {
        border-bottom: none;
    }
    .hot-list a {
        flex: 1;
        font-size: 14px;
        line-height: 1.55;
        color: var(--text-primary);
        transition: var(--transition);
    }
    .hot-list a:hover {
        color: var(--primary);
    }
    .hot-num {
        font-size: 14px;
        font-weight: 800;
        color: var(--border);
        font-variant-numeric: tabular-nums;
        line-height: 1.4;
        flex-shrink: 0;
    }
    .hot-list li:hover .hot-num {
        color: var(--accent);
    }
    .category-entry {
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
    }
    .category-entry:last-child {
        border-bottom: none;
    }
    .category-entry a {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-primary);
        transition: var(--transition);
    }
    .category-entry a::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--primary);
        flex-shrink: 0;
    }
    .category-entry a:hover {
        color: var(--primary);
        transform: translateX(4px);
    }
    .category-entry p {
        font-size: 13px;
        color: var(--text-muted);
        margin-top: 4px;
        padding-left: 14px;
    }

    /* ============ Related ============ */
    .related-section {
        background: var(--bg-light);
        padding: 64px 0;
        border-top: 1px solid var(--border);
    }
    .section-head {
        text-align: center;
        margin-bottom: 40px;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        border: 1px solid transparent;
    }
    .related-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
        border-color: rgba(15, 92, 78, 0.12);
    }
    .related-cover {
        position: relative;
        aspect-ratio: 3 / 2;
        overflow: hidden;
        background: var(--bg-light);
    }
    .related-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .related-card:hover .related-cover img {
        transform: scale(1.03);
    }
    .related-cover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 60%, rgba(11, 45, 38, 0.2));
        pointer-events: none;
    }
    .related-body {
        padding: 20px 24px 24px;
    }
    .related-body .badge {
        margin-bottom: 10px;
        display: inline-flex;
    }
    .related-body h3 {
        font-size: 17px;
        font-weight: 700;
        line-height: 1.45;
        margin-bottom: 8px;
    }
    .related-body h3 a {
        color: var(--text-primary);
        transition: var(--transition);
    }
    .related-body h3 a:hover {
        color: var(--primary);
    }
    .related-body p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.65;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* ============ Why Section ============ */
    .why-section {
        padding: 64px 0;
        background: var(--bg-page);
    }
    .why-layout {
        display: grid;
        grid-template-columns: 1fr 1.4fr;
        gap: 48px;
        align-items: center;
    }
    .why-intro h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.3;
        margin-bottom: 12px;
    }
    .why-intro p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.7;
    }
    .why-features {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
    }
    .feature-row {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 22px 28px;
        border-bottom: 1px solid var(--border);
        transition: var(--transition);
    }
    .feature-row:last-child {
        border-bottom: none;
    }
    .feature-row:hover {
        background: var(--primary-light);
    }
    .feature-row i {
        width: 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--primary);
        color: #fff;
        border-radius: 10px;
        font-size: 18px;
        flex-shrink: 0;
    }
    .feature-row h3 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 2px;
    }
    .feature-row p {
        font-size: 14px;
        color: var(--text-secondary);
    }

    /* ============ CTA ============ */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        padding: 64px 0;
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 200px;
        height: 200px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 50%;
    }
    .cta-section::after {
        content: '';
        position: absolute;
        bottom: -80px;
        left: 20%;
        width: 160px;
        height: 160px;
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 50%;
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
        text-align: center;
    }
    .cta-section h2 {
        font-size: 30px;
        font-weight: 800;
        margin-bottom: 12px;
        color: #fff;
        letter-spacing: 0.01em;
    }
    .cta-section p {
        font-size: 15px;
        opacity: 0.85;
        margin-bottom: 32px;
    }
    .cta-buttons {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    /* ============ Footer ============ */
    .site-footer {
        background: var(--primary-dark);
        color: rgba(255, 255, 255, 0.7);
        padding: 64px 0 0;
        font-size: 14px;
    }
    .site-footer .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .site-footer .footer-brand {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .site-footer .footer-logo {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #fff;
    }
    .site-footer .footer-logo .logo-icon {
        width: 30px;
        height: 30px;
        font-size: 13px;
    }
    .site-footer .footer-logo .logo-text {
        color: #fff;
        font-size: 18px;
    }
    .footer-about {
        font-size: 14px;
        line-height: 1.7;
        opacity: 0.7;
        max-width: 320px;
    }
    .footer-social {
        display: flex;
        gap: 12px;
    }
    .footer-social a {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255, 255, 255, 0.7);
        font-size: 14px;
        transition: var(--transition);
    }
    .footer-social a:hover {
        background: var(--accent);
        color: #fff;
        border-color: var(--accent);
        transform: translateY(-2px);
    }
    .site-footer .footer-title {
        color: #fff;
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 20px;
        letter-spacing: 0.02em;
    }
    .site-footer .footer-links,
    .site-footer .footer-contact-info {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .site-footer .footer-links a,
    .site-footer .footer-contact-info span {
        color: rgba(255, 255, 255, 0.7);
        transition: var(--transition);
        font-size: 14px;
    }
    .site-footer .footer-links a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .site-footer .footer-contact-info span {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .site-footer .footer-contact-info i {
        width: 16px;
        font-size: 13px;
        text-align: center;
        color: var(--accent);
    }
    .site-footer .footer-bottom {
        padding: 20px 0;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.5);
    }
    .site-footer .footer-bottom a {
        color: rgba(255, 255, 255, 0.5);
        transition: var(--transition);
    }
    .site-footer .footer-bottom a:hover {
        color: var(--accent);
    }

    /* ============ Responsive ============ */
    @media (max-width: 1023px) {
        .article-section {
            padding: 32px 0 48px;
        }
        .article-sidebar {
            margin-top: 32px;
        }
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .why-layout {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
        .header-hot {
            display: none;
        }
        .header-search {
            flex: 0 1 auto;
            max-width: 280px;
        }
        .breadcrumb-area {
            margin-top: 104px;
        }
    }
    @media (max-width: 640px) {
        .container,
        .grid-container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .header-top {
            height: 56px;
        }
        .header-search {
            display: none;
        }
        .nav-toggle {
            display: flex;
        }
        .header-bottom {
            position: relative;
        }
        .main-nav {
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100vh;
            background: var(--card-bg);
            flex-direction: column;
            align-items: flex-start;
            padding: 88px 24px 24px;
            z-index: 1200;
            gap: 4px;
            transition: right 0.35s cubic-bezier(0.39, 0.575, 0.565, 1);
            box-shadow: -8px 0 30px rgba(11, 45, 38, 0.18);
            border-radius: 16px 0 0 16px;
            overflow-y: auto;
        }
        .main-nav.open {
            right: 0;
        }
        .main-nav .nav-link {
            font-size: 17px;
            padding: 14px 12px;
            width: 100%;
            border-bottom: 1px solid var(--border);
            border-radius: 8px;
        }
        .main-nav .nav-link.active::after {
            display: none;
        }
        .main-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            padding-left: 16px;
            font-weight: 600;
        }
        .breadcrumb-area {
            margin-top: 92px;
            padding: 12px 0;
        }
        .article-header {
            padding: 24px 20px 18px;
        }
        .article-title {
            font-size: 22px;
            line-height: 1.4;
        }
        .article-meta {
            gap: 12px;
            font-size: 12px;
        }
        .article-content {
            padding: 22px 20px 28px;
            font-size: 15px;
            line-height: 1.8;
        }
        .article-content h2 {
            font-size: 20px;
            margin-top: 32px;
        }
        .article-content h3 {
            font-size: 18px;
            margin-top: 28px;
        }
        .article-tags {
            padding: 16px 20px;
        }
        .article-pager {
            padding: 16px 20px 24px;
            flex-direction: column;
        }
        .article-back {
            padding: 0 20px 24px;
        }
        .article-empty {
            padding: 48px 24px;
        }
        .sidebar-card {
            padding: 20px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .related-body h3 {
            font-size: 16px;
        }
        .why-intro h2 {
            font-size: 24px;
        }
        .cta-section {
            padding: 48px 0;
        }
        .cta-section h2 {
            font-size: 24px;
        }
        .cta-buttons {
            flex-direction: column;
            align-items: center;
        }
        .cta-buttons .btn {
            width: 100%;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-brand {
            grid-column: auto;
        }
        .section-title {
            font-size: 24px;
        }
    }
    @media (min-width: 641px) and (max-width: 1023px) {
        .related-card:last-child {
            grid-column: 1 / -1;
            max-width: 420px;
            margin: 0 auto;
            width: 100%;
        }
    }

/* roulang page: category3 */
:root {
            --primary: #0F5C4E;
            --primary-light: #2D8C76;
            --accent: #FF6B3D;
            --accent-hover: #F25A2C;
            --dark: #0B2D26;
            --page-bg: #FAF7F2;
            --light-bg: #F0EBE3;
            --card-bg: #FFFFFF;
            --text-main: #1C2B27;
            --text-secondary: #5B6B64;
            --text-weak: #9AA8A2;
            --border: #E3DDD3;
            --radius: 12px;
            --radius-btn: 999px;
            --shadow: 0 1px 4px rgba(11, 45, 38, 0.06);
            --shadow-hover: 0 10px 30px rgba(11, 45, 38, 0.12);
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        body.no-scroll {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-head .section-overline {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            padding: 4px 14px;
            background: rgba(255, 107, 61, 0.1);
            border-radius: 4px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(250, 247, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 8px rgba(11, 45, 38, 0.08);
            transition: var(--transition);
        }
        .site-header.scrolled .header-top {
            padding: 8px 0;
        }
        .site-header.scrolled .header-nav {
            padding: 4px 0;
        }
        .header-top {
            padding: 14px 0;
            transition: padding 0.3s ease;
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: -0.02em;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            white-space: nowrap;
        }
        .header-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin-left: auto;
        }
        .header-search input {
            width: 100%;
            height: 36px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--light-bg);
            padding: 0 44px 0 18px;
            font-size: 13px;
            color: var(--text-main);
            transition: var(--transition);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(15, 92, 78, 0.12);
        }
        .header-search .search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 30px;
            height: 30px;
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .header-search .search-btn:hover {
            color: var(--primary);
            background: rgba(15, 92, 78, 0.08);
        }
        .header-trends {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            white-space: nowrap;
        }
        .trend-label {
            color: var(--accent);
            font-weight: 700;
            padding: 2px 6px;
            background: rgba(255, 107, 61, 0.1);
            border-radius: 4px;
            margin-right: 2px;
        }
        .header-trends a {
            color: var(--text-secondary);
            padding: 4px 6px;
            border-radius: 4px;
        }
        .header-trends a:hover {
            color: var(--primary);
            background: rgba(15, 92, 78, 0.06);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .header-nav {
            border-top: 1px solid rgba(227, 221, 211, 0.7);
            padding: 6px 0;
            transition: padding 0.3s ease;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 92, 78, 0.05);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ===== Mobile drawer ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(11, 45, 38, 0.5);
            z-index: 1090;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            width: 82%;
            max-width: 360px;
            height: 100%;
            background: var(--page-bg);
            padding: 32px 24px;
            box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
        }
        .mobile-drawer.open .mobile-drawer-panel {
            transform: translateX(0);
        }
        .mobile-drawer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 32px;
        }
        .mobile-drawer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 13px;
        }
        .mobile-drawer-logo .logo-text {
            font-size: 18px;
        }
        .mobile-drawer-search {
            margin-bottom: 24px;
        }
        .mobile-drawer-search input {
            width: 100%;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: #fff;
            padding: 0 16px;
            font-size: 14px;
        }
        .mobile-drawer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-drawer-links a {
            padding: 14px 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-drawer-links a.active {
            color: var(--primary);
            background: rgba(15, 92, 78, 0.08);
        }
        .mobile-drawer-links a:hover {
            background: var(--light-bg);
        }
        .mobile-drawer-close {
            position: absolute;
            top: 18px;
            right: 18px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .mobile-drawer-close:hover {
            background: var(--border);
            color: var(--text-main);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            margin-top: 106px;
            background: linear-gradient(135deg, rgba(11, 45, 38, 0.92), rgba(15, 92, 78, 0.7)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 96px 0;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            border: 2px dashed rgba(255, 255, 255, 0.18);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-btn);
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .page-hero p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 600px;
        }
        .hero-search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-btn);
            padding: 6px 6px 6px 20px;
            max-width: 460px;
            backdrop-filter: blur(4px);
        }
        .hero-search-box input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
            height: 36px;
            outline: none;
        }
        .hero-search-box input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-search-box button {
            height: 38px;
            padding: 0 22px;
            background: var(--accent);
            border-radius: var(--radius-btn);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .hero-search-box button:hover {
            background: var(--accent-hover);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            padding: 18px 0;
            background: var(--page-bg);
            border-bottom: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-weak);
        }
        .breadcrumb-bar a {
            color: var(--text-secondary);
        }
        .breadcrumb-bar a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .sep {
            margin: 0 10px;
            color: var(--border);
        }
        .breadcrumb-bar .cur {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ===== Timeline Section ===== */
        .timeline-section {
            padding: 96px 0 80px;
            background: var(--page-bg);
        }
        .timeline {
            position: relative;
            max-width: 980px;
            margin: 0 auto;
            padding-top: 16px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 180px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: repeating-linear-gradient(to bottom, var(--primary) 0 6px, transparent 6px 12px);
            opacity: 0.3;
        }
        .timeline-item {
            display: flex;
            position: relative;
            margin-bottom: 56px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-date-col {
            width: 180px;
            flex: 0 0 180px;
            text-align: right;
            padding-right: 44px;
            padding-top: 8px;
            position: relative;
        }
        .timeline-date-col::after {
            content: '';
            position: absolute;
            right: -7px;
            top: 18px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--page-bg);
            box-shadow: 0 0 0 2px var(--accent);
            z-index: 2;
        }
        .timeline-month {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .timeline-year {
            font-size: 13px;
            color: var(--text-weak);
            display: block;
            margin-top: 2px;
        }
        .timeline-content {
            flex: 1;
            padding-left: 44px;
        }
        .timeline-card {
            display: flex;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            max-width: 680px;
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .timeline-card-img {
            width: 240px;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }
        .timeline-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .timeline-card:hover .timeline-card-img img {
            transform: scale(1.04);
        }
        .timeline-card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .timeline-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(15, 92, 78, 0.1);
            padding: 3px 10px;
            border-radius: 4px;
            line-height: 1.4;
        }
        .timeline-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .timeline-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .timeline-meta i {
            margin-right: 4px;
        }
        .link-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .link-more:hover {
            color: var(--accent);
            gap: 8px;
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: var(--dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '01';
            position: absolute;
            right: -30px;
            top: -40px;
            font-size: 180px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.04);
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stat-card {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            margin-bottom: 8px;
        }
        .stat-num span {
            color: var(--accent);
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Process Section ===== */
        .process-section {
            padding: 96px 0;
            background: var(--light-bg);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-item {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .process-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 18px;
        }
        .process-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .process-line {
            position: absolute;
            top: 52px;
            left: calc(50% + 30px);
            width: calc(100% - 60px);
            height: 2px;
            border-top: 2px dashed rgba(15, 92, 78, 0.3);
            z-index: 0;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--page-bg);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0 48px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }
        .faq-item:nth-child(-n+2) {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 4px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
            background: transparent;
            border: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--light-bg);
            transition: var(--transition);
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--text-main);
            transition: var(--transition);
        }
        .faq-icon::before {
            width: 10px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 10px;
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
        }
        .faq-item.open .faq-icon::before,
        .faq-item.open .faq-icon::after {
            background: #fff;
        }
        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 4px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-bottom: 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            left: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            border: 2px dashed rgba(255, 255, 255, 0.12);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 180px;
            height: 180px;
            border: 2px dashed rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .btn-accent {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 40px;
            border-radius: var(--radius-btn);
            box-shadow: 0 4px 16px rgba(255, 107, 61, 0.4);
            transition: var(--transition);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 61, 0.5);
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 13px 36px;
            border-radius: var(--radius-btn);
            border: 1.5px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 56px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo .logo-icon {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-radius: 10px;
        }
        .footer-logo .logo-text {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }
        .footer-about {
            font-size: 14px;
            line-height: 1.7;
            opacity: 0.75;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-title {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact-info {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-contact-info span {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-contact-info i {
            color: var(--accent);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1023px) {
            .header-search {
                max-width: 300px;
            }
            .header-trends {
                display: none;
            }
            .section {
                padding: 72px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-line {
                display: none;
            }
            .timeline::before {
                left: 120px;
            }
            .timeline-date-col {
                width: 120px;
                flex: 0 0 120px;
                padding-right: 32px;
            }
            .timeline-date-col::after {
                right: -7px;
            }
            .timeline-content {
                padding-left: 32px;
            }
            .timeline-card {
                flex-direction: column;
                max-width: 100%;
            }
            .timeline-card-img {
                width: 100%;
                height: 180px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .faq-item:nth-child(-n+2) {
                border-top: none;
            }
            .faq-item:first-child {
                border-top: 1px solid var(--border);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        @media screen and (max-width: 767px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header {
                position: fixed;
            }
            .header-top-inner {
                gap: 12px;
            }
            .header-search {
                display: none;
            }
            .hamburger {
                display: flex;
                margin-left: auto;
            }
            .header-nav {
                display: none;
            }
            .mobile-drawer {
                display: block;
            }
            .page-hero {
                margin-top: 60px;
                padding: 64px 0;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .hero-search-box {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                background: transparent;
                border: none;
                padding: 0;
            }
            .hero-search-box input {
                background: rgba(255, 255, 255, 0.16);
                border: 1px solid rgba(255, 255, 255, 0.3);
                border-radius: var(--radius-btn);
                padding: 0 16px;
            }
            .hero-search-box button {
                width: 100%;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head p {
                font-size: 14px;
            }
            .timeline {
                padding-top: 0;
            }
            .timeline::before {
                display: none;
            }
            .timeline-item {
                flex-direction: column;
                margin-bottom: 40px;
            }
            .timeline-date-col {
                width: auto;
                flex: none;
                text-align: left;
                padding: 0;
                margin-bottom: 12px;
                display: flex;
                align-items: center;
                gap: 12px;
            }
            .timeline-date-col::after {
                display: none;
            }
            .timeline-month {
                font-size: 20px;
            }
            .timeline-year {
                font-size: 12px;
                margin-top: 0;
            }
            .timeline-content {
                padding-left: 0;
            }
            .timeline-card-body {
                padding: 20px;
            }
            .timeline-card-body h3 {
                font-size: 17px;
            }
            .timeline-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .stats-section {
                padding: 56px 0;
            }
            .stat-num {
                font-size: 32px;
            }
            .process-section {
                padding: 64px 0;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-item {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 16px;
                padding: 20px;
            }
            .process-item .process-num {
                margin-bottom: 0;
                flex-shrink: 0;
            }
            .faq-section {
                padding: 64px 0;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }
        @media screen and (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .stat-num {
                font-size: 28px;
            }
            .timeline-card-img {
                height: 150px;
            }
        }