/* roulang page: index */
/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #232621;
  background-color: #F5F3EE;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #1E4D3B; text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
a:hover { color: #C9962A; }
a:focus, button:focus, input:focus { outline: 2px solid #C9962A; outline-offset: 2px; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; color: #1E4D3B; }
h1, h2, h3 { letter-spacing: 0.02em; }
h1 { font-family: "Noto Serif SC", "Source Han Serif SC", SimSun, serif; font-size: 38px; line-height: 1.3; }
h2 { font-family: "Noto Serif SC", "Source Han Serif SC", SimSun, serif; font-size: 28px; line-height: 1.35; }
h3 { font-size: 20px; line-height: 1.4; }

/* ===== 设计变量 ===== */
:root {
  --primary: #1E4D3B;
  --accent: #C9962A;
  --bg: #F5F3EE;
  --dark: #15342A;
  --body: #232621;
  --secondary: #6B716A;
  --divider: #E3DFD6;
  --danger: #B8503E;
  --success: #2E7D5B;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(21,52,42,0.05);
  --shadow-hover: 0 8px 24px rgba(21,52,42,0.10);
  --shadow-cta: 0 6px 20px rgba(201,150,42,0.35);
  --space-section: 96px;
}

/* ===== 通用容器 ===== */
.container, .site-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all .25s ease;
  text-decoration: none;
  line-height: 1.5;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: #b07f1f; border-color: #b07f1f; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-cta); }
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-ghost:hover { background: rgba(30,77,59,.08); border-color: var(--primary); color: var(--primary); }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-solid-dark {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-solid-dark:hover { background: var(--dark); color: #fff; border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-lg { padding: 14px 36px; font-size: 16px; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: rgba(245,243,238,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(227,223,214,.7);
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(21,52,42,0.08);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 72px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo:hover { color: var(--primary); }
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  flex: 1;
}
.nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--body);
  text-decoration: none;
  border-radius: 6px;
  position: relative;
  transition: color .2s ease;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--accent); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--accent); font-weight: 600; }
.nav-solutions {
  position: relative;
}
.solutions-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--body);
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
  transition: color .2s ease;
}
.solutions-trigger:hover { color: var(--accent); }
.solutions-trigger i { font-size: 12px; }
.solutions-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: var(--radius-card);
  box-shadow: 0 12px 32px rgba(21,52,42,.12);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .25s ease;
  z-index: 999;
}
.nav-solutions:hover .solutions-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.solutions-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--body);
  text-decoration: none;
  font-size: 14px;
  transition: background .2s ease, color .2s ease;
}
.solutions-menu a:hover { background: var(--bg); color: var(--primary); }
.solutions-menu a i { color: var(--accent); width: 18px; text-align: center; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box i {
  position: absolute;
  left: 12px;
  color: var(--secondary);
  font-size: 13px;
  pointer-events: none;
}
.search-box input {
  height: 40px;
  width: 160px;
  padding: 0 14px 0 34px;
  border: 1px solid var(--divider);
  border-radius: 20px;
  background: #fff;
  font-size: 14px;
  color: var(--body);
  transition: border-color .2s ease, box-shadow .2s ease, width .3s ease;
}
.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,150,42,.15);
  width: 200px;
  outline: none;
}
.btn-login {
  padding: 8px 18px;
  font-size: 14px;
  border: 1px solid var(--primary);
  background: transparent;
  color: var(--primary);
  border-radius: var(--radius-btn);
  font-weight: 600;
  text-decoration: none;
  transition: all .2s ease;
}
.btn-login:hover { background: var(--primary); color: #fff; }
.btn-start {
  padding: 9px 20px;
  font-size: 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .2s ease;
}
.btn-start:hover { background: #b07f1f; transform: translateY(-1px); box-shadow: var(--shadow-cta); color: #fff; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  border-radius: 8px;
  font-size: 20px;
  color: var(--primary);
  align-items: center;
  justify-content: center;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  height: calc(100vh - 72px);
  background: var(--bg);
  z-index: 999;
  flex-direction: column;
  padding: 24px 20px 40px;
  overflow-y: auto;
  box-shadow: inset 0 2px 8px rgba(21,52,42,.06);
}
.mobile-menu.open { display: flex; }
.mobile-menu .mobile-search {
  margin-bottom: 20px;
}
.mobile-menu .mobile-search input {
  width: 100%;
  height: 44px;
  padding: 0 16px;
  border: 1px solid var(--divider);
  border-radius: 22px;
  font-size: 15px;
}
.mobile-menu a.mobile-link {
  display: block;
  padding: 12px 8px;
  border-bottom: 1px solid var(--divider);
  color: var(--body);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  line-height: 48px;
}
.mobile-menu a.mobile-link:hover { color: var(--accent); }
.mobile-menu .mobile-links-group {
  margin-top: 8px;
  padding: 8px 0;
}
.mobile-menu .group-label {
  font-size: 13px;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 4px 8px;
  font-weight: 600;
}
.mobile-menu .mobile-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}
.mobile-menu .mobile-actions .btn { flex: 1; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 640px;
  background: var(--dark);
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(245,243,238,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(245,243,238,.06) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,243,238,.95);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 28px;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.hero-badge i { font-size: 13px; }
.hero h1 {
  color: #fff;
  font-size: 40px;
  max-width: 780px;
  margin-bottom: 18px;
}
.hero h1 .highlight { color: var(--accent); }
.hero-sub {
  color: rgba(245,243,238,.85);
  font-size: 18px;
  max-width: 460px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat .num {
  font-family: "Noto Serif SC", serif;
  font-size: 40px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  display: block;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(245,243,238,.65);
  margin-top: 4px;
}
.hero-window {
  width: 100%;
  max-width: 760px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  overflow: hidden;
  margin: 0 auto;
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #EDEAE4;
  border-bottom: 1px solid #ddd;
}
.browser-dot { width: 12px; height: 12px; border-radius: 50%; display: block; }
.browser-dot.red { background: #E06C5B; }
.browser-dot.yellow { background: #E3B54A; }
.browser-dot.green { background: #4FB477; }
.browser-address {
  flex: 1;
  background: #fff;
  border-radius: 6px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--secondary);
  text-align: center;
  margin-left: 8px;
}
.browser-body {
  padding: 40px;
  display: flex;
  justify-content: center;
}
.login-form-skel { width: 320px; }
.skel-line { height: 14px; border-radius: 4px; background: #E8E5DE; margin-bottom: 10px; }
.skel-line.w-40 { width: 40%; }
.skel-line.w-30 { width: 30%; }
.skel-input {
  height: 38px;
  border-radius: 6px;
  border: 1px solid #DAD6CE;
  margin-bottom: 16px;
  background: #fff;
}
.skel-btn {
  height: 40px;
  border-radius: 6px;
  background: var(--accent);
  margin-top: 8px;
}

/* ===== 通用板块 ===== */
.section { padding: 96px 0; }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 14px; }
.section-header p { color: var(--secondary); font-size: 16px; }

/* ===== 卖点区 ===== */
.features { background: var(--bg); }
.feature-grid {
  display: flex;
  gap: 24px;
  align-items: stretch;
}
.feature-main {
  flex: 0 0 58%;
  background: var(--dark);
  border-radius: var(--radius-card);
  padding: 36px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 360px;
}
.feature-main::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(201,150,42,.15);
}
.feature-main .feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  margin-bottom: 20px;
}
.feature-main h3 { color: #fff; font-size: 22px; margin-bottom: 12px; }
.feature-main p { color: rgba(245,243,238,.75); font-size: 15px; line-height: 1.8; max-width: 400px; }
.feature-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.feature-item {
  flex: 1;
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}
.feature-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
  transform: translateY(-3px);
}
.feature-item .feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(30,77,59,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 14px;
}
.feature-item h3 { font-size: 17px; margin-bottom: 8px; }
.feature-item p { font-size: 14px; color: var(--secondary); line-height: 1.7; margin: 0; }

/* ===== 演示区 ===== */
.demo { background: #fff; }
.demo-layout {
  display: flex;
  align-items: center;
  gap: 60px;
}
.demo-text { flex: 1; }
.demo-image { flex: 1; }
.demo-image img {
  border-radius: var(--radius-card);
  box-shadow: 0 16px 40px rgba(21,52,42,.12);
  width: 100%;
  object-fit: cover;
  height: 380px;
}
.steps {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  display: flex;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--divider);
}
.steps li:last-child { border-bottom: none; }
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-family: "Noto Serif SC", serif;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-content h4 { font-size: 16px; color: var(--primary); margin-bottom: 4px; }
.step-content p { font-size: 14px; color: var(--secondary); margin: 0; }

/* ===== 证据区 ===== */
.evidence {
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 96px 0;
}
.evidence::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(245,243,238,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(245,243,238,.05) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.evidence .section-header h2 { color: #fff; }
.evidence .section-header p { color: rgba(245,243,238,.6); }
.stats-row {
  display: flex;
  justify-content: center;
  gap: 80px;
  padding: 40px 0 56px;
  flex-wrap: wrap;
  text-align: center;
}
.stat-box .num {
  font-family: "Noto Serif SC", serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1.2;
}
.stat-box .label { font-size: 14px; color: rgba(245,243,238,.65); }
.review-slider {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 8px 4px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) rgba(245,243,238,.1);
}
.review-slider::-webkit-scrollbar { height: 6px; }
.review-slider::-webkit-scrollbar-track { background: rgba(245,243,238,.1); border-radius: 10px; }
.review-slider::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 10px; }
.review-card {
  flex: 0 0 340px;
  background: rgba(245,243,238,.08);
  border: 1px solid rgba(245,243,238,.1);
  border-radius: var(--radius-card);
  padding: 28px;
  backdrop-filter: blur(4px);
  transition: background .3s ease, border-color .3s ease;
}
.review-card:hover { background: rgba(245,243,238,.12); border-color: rgba(201,150,42,.4); }
.review-card p { color: rgba(245,243,238,.88); font-size: 14px; line-height: 1.8; margin: 0 0 16px; }
.review-author { color: var(--accent); font-size: 13px; font-weight: 600; }

/* ===== 价格区 ===== */
.pricing { background: var(--bg); }
.pricing-grid {
  display: flex;
  gap: 24px;
  align-items: stretch;
  justify-content: center;
}
.pricing-card {
  flex: 1;
  max-width: 360px;
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}
.pricing-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--accent);
}
.pricing-card.recommended {
  border: 2px solid var(--accent);
  box-shadow: 0 12px 32px rgba(201,150,42,.15);
  position: relative;
}
.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: .04em;
}
.pricing-name { font-size: 18px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
.pricing-price {
  font-family: "Noto Serif SC", serif;
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.pricing-price .currency { font-size: 18px; color: var(--secondary); font-weight: 400; }
.pricing-price .period { font-size: 14px; color: var(--secondary); font-weight: 400; }
.pricing-desc { font-size: 13px; color: var(--secondary); margin-bottom: 20px; }
.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  flex: 1;
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--body);
}
.pricing-features li i { color: var(--accent); margin-top: 4px; font-size: 13px; }
.pricing-card .btn { width: 100%; margin-top: auto; }

/* ===== FAQ ===== */
.faq { background: #fff; }
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--divider);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--bg);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item:hover { border-color: var(--accent); }
.faq-item.active { border-color: var(--accent); box-shadow: var(--shadow-card); }
.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  text-align: left;
  cursor: pointer;
  transition: color .2s ease;
}
.faq-question:hover { color: var(--accent); }
.faq-question i {
  font-size: 14px;
  color: var(--secondary);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--accent); }
.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--secondary);
  line-height: 1.8;
  display: none;
}
.faq-item.active .faq-answer { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 资讯区 ===== */
.news { background: var(--bg); }
.news-list { max-width: 860px; margin: 0 auto; }
.news-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
  text-decoration: none;
  color: var(--body);
}
.news-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  text-decoration: none;
}
.news-card:hover h3 { color: var(--accent); }
.news-date {
  flex-shrink: 0;
  text-align: center;
  min-width: 64px;
  padding: 8px 0;
  border-right: 1px solid var(--divider);
}
.news-date .day { font-family: "Noto Serif SC", serif; font-size: 24px; font-weight: 700; color: var(--primary); line-height: 1; display: block; }
.news-date .month { font-size: 12px; color: var(--secondary); }
.news-body { flex: 1; }
.news-body h3 { font-size: 16px; color: var(--primary); margin-bottom: 4px; transition: color .2s ease; }
.news-body p {
  font-size: 13px;
  color: var(--secondary);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.news-cat {
  background: rgba(30,77,59,.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
}
.news-link {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}
.news-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--secondary);
  background: #fff;
  border: 1px dashed var(--divider);
  border-radius: var(--radius-card);
}
.news-empty i { font-size: 32px; color: #ccc; margin-bottom: 12px; display: block; }

/* ===== CTA区 ===== */
.cta-section {
  background: var(--dark);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(245,243,238,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(245,243,238,.05) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; padding: 0 20px; }
.cta-section h2 { color: #fff; font-size: 30px; margin-bottom: 14px; }
.cta-section p { color: rgba(245,243,238,.75); font-size: 16px; margin-bottom: 32px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: #C8CFC9;
  padding: 64px 0 0;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(245,243,238,.1);
}
.footer-brand { flex: 0 0 300px; }
.footer-brand .site-logo { color: #fff; margin-bottom: 12px; }
.footer-brand .logo-icon { background: var(--accent); }
.footer-brand p { font-size: 14px; color: rgba(245,243,238,.55); margin: 0; }
.footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; font-weight: 600; }
.footer-col a {
  display: block;
  padding: 4px 0;
  color: rgba(245,243,238,.6);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(245,243,238,.4);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom .icp { color: rgba(245,243,238,.4); }

/* ===== 浮动CTA ===== */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 18px;
  box-shadow: var(--shadow-cta);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all .3s ease;
}
.float-cta.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.float-cta:hover { background: #b07f1f; transform: translateY(-2px); }

/* ===== 登录弹窗 ===== */
.login-modal {
  position: fixed;
  inset: 0;
  background: rgba(21,52,42,.5);
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-modal.open { display: flex; }
.login-modal-content {
  background: #fff;
  border-radius: var(--radius-card);
  max-width: 420px;
  width: 100%;
  padding: 36px 32px;
  position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,.25);
}
.login-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg);
  color: var(--secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s ease, color .2s ease;
}
.login-modal-close:hover { background: var(--accent); color: #fff; }
.login-modal-content h2 { font-size: 22px; margin-bottom: 20px; text-align: center; }
.login-modal-content form { display: flex; flex-direction: column; gap: 14px; }
.login-modal-content label { font-size: 13px; color: var(--secondary); margin-bottom: -8px; font-weight: 600; }
.login-modal-content input {
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--divider);
  border-radius: var(--radius-btn);
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.login-modal-content input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,150,42,.15);
  outline: none;
}
.login-modal-content .btn { margin-top: 6px; width: 100%; }
.login-modal-tip { font-size: 12px; color: var(--secondary); text-align: center; margin-top: 14px; }

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .search-box input { width: 120px; }
  .search-box input:focus { width: 150px; }
  .header-actions { gap: 8px; }
  .main-nav { gap: 2px; }
  .nav-link, .solutions-trigger { padding: 8px 10px; font-size: 14px; }
}
@media (max-width: 880px) {
  .main-nav, .header-actions .search-box, .header-actions .btn-login, .header-actions .btn-start { display: none; }
  .menu-toggle { display: flex; }
  .site-header { height: 64px; }
  .header-inner { height: 64px; }
  .mobile-menu { top: 64px; height: calc(100vh - 64px); }
  .section { padding: 64px 0; }
  .feature-grid { flex-direction: column; }
  .feature-main, .feature-side { flex: auto; }
  .demo-layout { flex-direction: column; gap: 32px; }
  .demo-image img { height: 260px; }
  .pricing-grid { flex-direction: column; align-items: center; }
  .pricing-card { max-width: 420px; width: 100%; }
  .stats-row { gap: 32px 48px; }
  .hero-stats { gap: 24px; }
  .hero h1 { font-size: 30px; }
  .footer-top { flex-direction: column; gap: 32px; }
  .footer-links { gap: 40px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .news-card { flex-wrap: wrap; gap: 12px; }
  .news-meta { width: 100%; justify-content: flex-start; border-top: 1px solid var(--divider); padding-top: 12px; }
}
@media (max-width: 640px) {
  .section { padding: 48px 0; }
  .container, .site-container { padding: 0 16px; }
  .hero { padding: 100px 0 40px; min-height: auto; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; }
  .hero-stats { gap: 16px 32px; }
  .hero-stat .num { font-size: 28px; }
  .hero-window { max-width: 100%; }
  .browser-body { padding: 24px; }
  .section-header h2 { font-size: 22px; }
  .feature-main, .feature-item, .pricing-card { padding: 24px; }
  .stats-row { gap: 24px; }
  .stat-box .num { font-size: 32px; }
  .review-card { flex-basis: 260px; padding: 20px; }
  .steps li { padding: 12px 0; }
  .btn { width: 100%; }
  .btn-primary, .btn-ghost, .btn-outline-light, .btn-solid-dark, .btn-login, .btn-start { width: auto; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn { width: 100%; }
  .float-cta { width: 48px; height: 48px; right: 16px; bottom: 16px; font-size: 16px; }
  body { padding-bottom: 0; }
  .footer-bottom { flex-direction: column; }
  .news-card { padding: 18px; }
  .news-date { min-width: 48px; }
  .news-date .day { font-size: 20px; }
  .mobile-menu .mobile-actions { flex-direction: column; }
}

/* roulang page: article */
:root{
  --primary:#1E4D3B;
  --primary-dark:#15342A;
  --accent:#C9962A;
  --accent-dark:#A87A1E;
  --bg:#F5F3EE;
  --bg-white:#FFFFFF;
  --body:#232621;
  --secondary:#6B716A;
  --divider:#E3DFD6;
  --danger:#B8503E;
  --success:#2E7D5B;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-sm:0 2px 10px rgba(21,52,42,0.05);
  --shadow-md:0 8px 24px rgba(21,52,42,0.10);
  --shadow-nav:0 2px 12px rgba(21,52,42,0.08);
  --shadow-cta:0 6px 20px rgba(201,150,42,0.35);
  --font-heading:'Noto Serif SC','Source Han Serif SC','Songti SC',SimSun,serif;
  --font-body:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --container:1200px;
  --header-h:72px;
  --transition:0.3s ease;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-top:var(--header-h);
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{background:none;border:none;cursor:pointer}
:focus{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.row{max-width:var(--container)}
.row .columns{padding-left:14px;padding-right:14px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:all var(--transition);
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:6px}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(201,150,42,0.45);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(201,150,42,0.3)}
.btn-secondary{
  background:var(--primary);
  color:#fff;
}
.btn-secondary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.btn-secondary:active{transform:translateY(0)}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.btn-outline:active{background:var(--primary-dark)}
.btn-block{width:100%}

/* ===== Header & Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--header-h);
  z-index:1000;
  background:rgba(245,243,238,0.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow 0.3s ease,border-color 0.3s ease;
}
.site-header.scrolled{
  box-shadow:var(--shadow-nav);
  border-color:var(--divider);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:var(--header-h);
}
.site-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--primary);
  font-family:var(--font-heading);
  font-size:18px;
  font-weight:700;
  letter-spacing:0.02em;
}
.site-logo:hover{color:var(--primary)}
.logo-icon{
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:var(--accent);
  border-radius:10px;
  font-size:16px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  display:block;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--body);
  border-radius:6px;
  position:relative;
  transition:color var(--transition);
}
.nav-link::after{
  content:'';
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--transition);
}
.nav-link:hover{
  color:var(--primary);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--accent);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-solutions{position:relative}
.solutions-trigger{
  display:flex;align-items:center;gap:6px;
  padding:8px 14px;
  font-size:15px;font-weight:500;
  color:var(--body);
  border-radius:6px;
  cursor:pointer;
  transition:color var(--transition);
}
.solutions-trigger:hover{color:var(--primary)}
.solutions-trigger i{font-size:11px;color:var(--secondary)}
.solutions-menu{
  position:absolute;
  top:calc(100% + 8px);
  left:0;
  min-width:220px;
  background:var(--bg-white);
  border:1px solid var(--divider);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  padding:8px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:all 0.28s ease;
  z-index:100;
}
.solutions-menu a{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;
  font-size:14px;
  color:var(--body);
  border-radius:8px;
  transition:background var(--transition),color var(--transition);
}
.solutions-menu a i{
  width:22px;text-align:center;
  color:var(--accent);
  font-size:14px;
}
.solutions-menu a:hover{
  background:rgba(30,77,59,0.06);
  color:var(--primary);
}
.nav-solutions:hover .solutions-menu,
.nav-solutions:focus-within .solutions-menu{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-box{
  position:relative;
  width:160px;
}
.search-box i{
  position:absolute;
  left:12px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--secondary);
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:38px;
  padding:0 14px 0 34px;
  border:1px solid var(--divider);
  border-radius:20px;
  background:var(--bg-white);
  font-size:14px;
  color:var(--body);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search-box input::placeholder{color:var(--secondary)}
.search-box input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(201,150,42,0.25);
}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--primary);
  border-radius:8px;
  border:1px solid var(--divider);
  background:var(--bg-white);
  transition:all var(--transition);
}
.menu-toggle:hover{
  border-color:var(--accent);
  color:var(--accent);
}

/* Mobile menu */
.mobile-menu{
  display:none;
  position:fixed;
  top:var(--header-h);
  left:0;right:0;bottom:0;
  background:var(--bg);
  z-index:999;
  overflow-y:auto;
  padding:20px 0 40px;
  box-shadow:var(--shadow-nav);
}
.mobile-menu.open{display:block}
.mobile-search{
  position:relative;
  margin-bottom:16px;
}
.mobile-search i{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  font-size:14px;
  color:var(--secondary);
}
.mobile-search input{
  width:100%;
  height:44px;
  padding:0 16px 0 40px;
  border:1px solid var(--divider);
  border-radius:22px;
  background:var(--bg-white);
  font-size:15px;
}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.mobile-nav-link{
  display:block;
  padding:12px 16px;
  font-size:16px;
  font-weight:500;
  color:var(--body);
  border-radius:8px;
  line-height:1.4;
  transition:background var(--transition),color var(--transition);
}
.mobile-nav-link:hover{
  background:rgba(30,77,59,0.06);
  color:var(--primary);
}
.mobile-nav-link.sub{padding-left:32px;font-size:15px;color:var(--secondary)}
.mobile-nav-label{
  display:block;
  padding:14px 16px 6px;
  font-size:13px;
  font-weight:600;
  color:var(--secondary);
  text-transform:uppercase;
  letter-spacing:0.05em;
}
.mobile-actions{display:flex;flex-direction:column;gap:10px}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap{
  background:var(--bg);
  border-bottom:1px solid var(--divider);
  padding:16px 0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--secondary);
}
.breadcrumb a{color:var(--primary);font-weight:500}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{font-size:11px;color:var(--secondary)}
.breadcrumb .current{
  max-width:280px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--secondary);
}

/* ===== Article Main ===== */
.article-main{
  padding:40px 0 80px;
  background:var(--bg);
}
.article{max-width:900px;margin:0 auto}
.article-header{text-align:center;padding:20px 0 28px}
.article-header h1{
  font-family:var(--font-heading);
  font-size:38px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:0.02em;
  color:var(--primary-dark);
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:8px 22px;
  font-size:13px;
  color:var(--secondary);
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.meta-item i{color:var(--accent);font-size:13px}
.article-cover{
  position:relative;
  width:100%;
  height:auto;
  max-height:440px;
  overflow:hidden;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  margin-bottom:36px;
}
.article-cover img{
  width:100%;
  height:440px;
  object-fit:cover;
  border-radius:var(--radius-card);
}
.article-cover::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to bottom,rgba(21,52,42,0.06),transparent 55%);
  border-radius:var(--radius-card);
  pointer-events:none;
}

/* Article Content */
.article-content{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
}
.article-content p{margin-bottom:24px}
.article-content p:last-child{margin-bottom:0}
.article-content h2{
  font-family:var(--font-heading);
  font-size:28px;
  font-weight:700;
  color:var(--primary-dark);
  margin:48px 0 20px;
  padding-top:32px;
  border-top:1px solid var(--divider);
  letter-spacing:0.02em;
}
.article-content h3{
  font-size:20px;
  font-weight:600;
  color:var(--primary);
  margin:32px 0 14px;
}
.article-content h4{
  font-size:17px;
  font-weight:600;
  color:var(--body);
  margin:24px 0 10px;
}
.article-content a{
  color:var(--accent-dark);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-content a:hover{color:var(--accent)}
.article-content ul,.article-content ol{
  margin:0 0 24px;
  padding-left:24px;
}
.article-content ul li,.article-content ol li{margin-bottom:8px}
.article-content ul li::marker{color:var(--accent)}
.article-content ol li::marker{color:var(--primary);font-weight:600}
.article-content blockquote{
  padding:18px 22px;
  margin:28px 0;
  border-left:4px solid var(--accent);
  background:rgba(201,150,42,0.07);
  border-radius:0 10px 10px 0;
  font-style:italic;
  color:var(--primary-dark);
}
.article-content blockquote p{margin-bottom:0}
.article-content pre{
  background:var(--primary-dark);
  color:#E8EDE9;
  padding:20px;
  border-radius:10px;
  overflow-x:auto;
  margin:24px 0;
  font-size:14px;
  line-height:1.7;
  font-family:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
}
.article-content code{
  background:rgba(30,77,59,0.08);
  color:var(--primary);
  padding:2px 6px;
  border-radius:4px;
  font-size:0.92em;
  font-family:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
}
.article-content pre code{
  background:transparent;
  color:inherit;
  padding:0;
}
.article-content img{
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  margin:28px auto;
}
.article-content figcaption{
  text-align:center;
  font-size:13px;
  color:var(--secondary);
  margin-top:-18px;
  margin-bottom:24px;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.article-content th{
  background:var(--primary);
  color:#fff;
  text-align:left;
  padding:10px 14px;
  font-weight:600;
}
.article-content td{
  padding:10px 14px;
  border-bottom:1px solid var(--divider);
}
.article-content tr:nth-child(even) td{background:rgba(21,52,42,0.03)}
.article-content hr{
  border:none;
  border-top:1px solid var(--divider);
  margin:36px 0;
}

/* Article Tags */
.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:36px auto 24px;
  max-width:760px;
}
.tag{
  display:inline-block;
  padding:5px 14px;
  background:rgba(30,77,59,0.08);
  color:var(--primary);
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:500;
  transition:all var(--transition);
}
.tag:hover{
  background:var(--primary);
  color:#fff;
}

/* Article Nav Buttons */
.article-nav{
  display:flex;
  justify-content:center;
  gap:14px;
  margin-top:28px;
  padding-top:28px;
  border-top:1px solid var(--divider);
}

/* ===== Not Found ===== */
.not-found{
  max-width:560px;
  margin:80px auto;
  text-align:center;
  background:var(--bg-white);
  border:1px solid var(--divider);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:60px 40px;
}
.not-found-icon{
  width:72px;height:72px;
  margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(201,150,42,0.1);
  color:var(--accent);
  border-radius:50%;
  font-size:30px;
}
.not-found h2{
  font-family:var(--font-heading);
  font-size:26px;
  color:var(--primary-dark);
  margin-bottom:12px;
}
.not-found p{color:var(--secondary);margin-bottom:24px}

/* ===== Related Section ===== */
.related-section{
  max-width:var(--container);
  margin:72px auto 0;
}
.section-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:28px;
}
.section-title{
  font-family:var(--font-heading);
  font-size:28px;
  font-weight:700;
  color:var(--primary-dark);
  letter-spacing:0.02em;
}
.section-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:color var(--transition);
}
.section-more i{font-size:13px;transition:transform var(--transition)}
.section-more:hover{color:var(--accent)}
.section-more:hover i{transform:translateX(3px)}
.related-grid{display:flex;flex-wrap:wrap;margin:0 -14px}
.related-col{
  width:calc(33.333% - 28px);
  margin:0 14px;
}
.related-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--bg-white);
  border:1px solid var(--divider);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:all var(--transition);
}
.related-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:var(--accent);
}
.related-img{
  position:relative;
  height:190px;
  overflow:hidden;
}
.related-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.related-card:hover .related-img img{transform:scale(1.05)}
.related-tag{
  position:absolute;
  top:12px;left:12px;
  background:rgba(21,52,42,0.82);
  color:#fff;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:500;
  backdrop-filter:blur(4px);
}
.related-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:20px;
}
.related-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--body);
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--transition);
}
.related-card:hover .related-body h3{color:var(--primary)}
.related-body p{
  font-size:14px;
  color:var(--secondary);
  line-height:1.6;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.related-link{
  font-size:13px;
  font-weight:600;
  color:var(--accent-dark);
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.related-link i{font-size:12px;transition:transform var(--transition)}
.related-link:hover i{transform:translateX(3px)}

/* ===== CTA Strip ===== */
.cta-strip{
  background:var(--primary-dark);
  position:relative;
  overflow:hidden;
  margin-top:72px;
}
.cta-strip::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:30px 30px;
  pointer-events:none;
}
.cta-strip-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:48px 0;
  flex-wrap:wrap;
}
.cta-strip-text h2{
  font-family:var(--font-heading);
  font-size:28px;
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
}
.cta-strip-text p{
  color:rgba(200,207,201,0.9);
  font-size:15px;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:#C8CFC9;
  padding:64px 0 32px;
}
.site-footer a{color:#C8CFC9}
.site-footer a:hover{color:var(--accent)}
.footer-top{
  display:flex;
  gap:40px;
  justify-content:space-between;
  flex-wrap:wrap;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,0.1);
}
.footer-brand{flex:0 0 280px}
.footer-brand .site-logo{color:#fff}
.footer-brand .site-logo .logo-icon{background:rgba(255,255,255,0.1);color:var(--accent)}
.footer-brand p{
  font-size:14px;
  line-height:1.7;
  margin-top:16px;
  color:rgba(200,207,201,0.75);
}
.footer-links{
  display:flex;
  gap:56px;
  flex-wrap:wrap;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:0.02em;
}
.footer-col a{
  display:block;
  font-size:14px;
  padding:5px 0;
  color:rgba(200,207,201,0.8);
  transition:color var(--transition);
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(200,207,201,0.6);
}
.icp{color:rgba(200,207,201,0.5)}

/* ===== Back to Top ===== */
.back-to-top{
  position:fixed;
  bottom:32px;
  right:32px;
  width:52px;
  height:52px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  font-size:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-cta);
  opacity:0;
  visibility:hidden;
  transform:translateY(16px);
  transition:all 0.35s ease;
  z-index:999;
}
.back-to-top.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-to-top:hover{
  background:var(--accent-dark);
  transform:translateY(-3px);
  box-shadow:0 10px 30px rgba(201,150,42,0.45);
}
.back-to-top:active{transform:translateY(-1px)}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  :root{--space-section:72px}
  .search-box{width:130px}
  .nav-link{padding:8px 10px;font-size:14px}
  .solutions-trigger{padding:8px 10px;font-size:14px}
  .header-actions .btn{padding:0 14px}
}
@media screen and (max-width:880px){
  .main-nav,.header-actions .search-box,.header-actions .btn{display:none}
  .menu-toggle{display:flex}
  .article-header h1{font-size:32px}
  .related-col{
    width:calc(50% - 28px);
    margin:0 14px 24px;
  }
  .cta-strip-inner{flex-direction:column;align-items:flex-start}
  .footer-top{flex-direction:column;gap:32px}
  .footer-links{gap:32px}
  body{padding-top:var(--header-h)}
}
@media screen and (max-width:640px){
  :root{--space-section:56px}
  .container{padding:0 16px}
  .article-main{padding:24px 0 56px}
  .article-header h1{font-size:26px;line-height:1.35}
  .article-meta{gap:6px 14px;font-size:12px}
  .article-cover{margin-bottom:24px}
  .article-cover img{height:220px}
  .article-content{font-size:15px;line-height:1.75}
  .article-content h2{font-size:22px;margin:32px 0 16px;padding-top:24px}
  .article-content h3{font-size:18px}
  .related-col{
    width:100%;
    margin:0 0 20px;
  }
  .related-img{height:180px}
  .article-nav{flex-direction:column;gap:10px}
  .article-nav .btn{width:100%}
  .not-found{padding:40px 24px;margin:48px auto}
  .cta-strip-inner{padding:36px 0}
  .cta-strip-text h2{font-size:22px}
  .footer-top{padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-to-top{
    width:44px;height:44px;
    bottom:24px;right:16px;
    font-size:15px;
  }
  .breadcrumb .current{max-width:160px}
  .section-title{font-size:22px}
}

/* roulang page: category1 */
:root {
            --primary: #1E4D3B;
            --accent: #C9962A;
            --bg: #F5F3EE;
            --dark: #15342A;
            --text: #232621;
            --text-secondary: #6B716A;
            --divider: #E3DFD6;
            --danger: #B8503E;
            --success: #2E7D5B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 2px 10px rgba(21, 52, 42, 0.05);
            --shadow-hover: 0 8px 24px rgba(21, 52, 42, 0.10);
            --shadow-cta: 0 6px 20px rgba(201, 150, 42, 0.35);
            --nav-height: 72px;
            --container-max: 1200px;
            --spacer-lg: 96px;
            --spacer-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.8;
            background: var(--bg);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .3s ease, border-color .3s ease, background-color .3s ease, box-shadow .3s ease, transform .3s ease, opacity .3s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
            border: none;
            outline: none;
            background: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all .3s ease;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: #b07f1f;
            border-color: #b07f1f;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(201, 150, 42, 0.35);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            border-color: var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(21, 52, 42, 0.15);
        }

        .btn-outline:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.85);
            color: #fff;
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--nav-height);
            background: rgba(245, 243, 238, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(227, 223, 214, 0.7);
            transition: box-shadow .3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(21, 52, 42, 0.08);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 24px;
        }

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

        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }

        .site-logo span:last-child {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            margin-left: 16px;
        }

        .nav-link {
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 6px;
            position: relative;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }

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

        .nav-link:hover::after {
            transform: scaleX(1);
        }

        .nav-solutions {
            position: relative;
            margin-left: 4px;
        }

        .solutions-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 6px;
            cursor: pointer;
            white-space: nowrap;
            transition: all .3s ease;
        }

        .solutions-trigger i {
            font-size: 12px;
            color: var(--text-secondary);
            transition: transform .3s ease;
        }

        .solutions-trigger:hover,
        .solutions-trigger.active {
            color: var(--accent);
        }

        .solutions-trigger.active i {
            color: var(--accent);
        }

        .nav-solutions:hover .solutions-trigger i {
            transform: rotate(180deg);
        }

        .solutions-menu {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(21, 52, 42, 0.12);
            padding: 8px;
            min-width: 230px;
            opacity: 0;
            visibility: hidden;
            transition: all .3s ease;
            z-index: 120;
        }

        .nav-solutions:hover .solutions-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .solutions-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text);
            transition: all .25s ease;
        }

        .solutions-menu a i {
            width: 20px;
            text-align: center;
            color: var(--primary);
            font-size: 15px;
        }

        .solutions-menu a:hover {
            background: rgba(201, 150, 42, 0.10);
            color: var(--accent);
        }

        .solutions-menu a.active {
            color: var(--accent);
            font-weight: 600;
            background: rgba(201, 150, 42, 0.08);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            width: 160px;
        }

        .search-box input {
            width: 100%;
            height: 36px;
            border: 1px solid var(--divider);
            border-radius: 20px;
            padding: 0 38px 0 16px;
            font-size: 13px;
            background: #fff;
            color: var(--text);
            transition: all .3s ease;
        }

        .search-box input::placeholder {
            color: var(--text-secondary);
        }

        .search-box input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 150, 42, 0.15);
        }

        .search-box i {
            position: absolute;
            right: 13px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 13px;
            color: var(--text-secondary);
            pointer-events: none;
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: 1px solid var(--divider);
            border-radius: 8px;
            background: #fff;
            color: var(--primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
        }

        .menu-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== Category Hero ===== */
        .cat-hero {
            min-height: 40vh;
            padding: 150px 0 60px;
            background: linear-gradient(125deg, rgba(21, 52, 42, 0.92) 0%, rgba(30, 77, 59, 0.88) 70%), url('/assets/images/backpic/back-1.webp') center/cover;
            position: relative;
            display: flex;
            align-items: center;
            color: #fff;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
            background-size: 20px 20px;
            pointer-events: none;
        }

        .cat-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color .3s;
        }

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

        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .cat-hero h1 {
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 16px;
        }

        .cat-hero .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
        }

        /* ===== Category Content ===== */
        .cat-content {
            padding: 64px 0 96px;
        }

        .content-main {
            padding-right: 16px;
        }

        .content-block {
            margin-bottom: 56px;
        }

        .section-title {
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.02em;
            color: var(--primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .section-title .title-mark {
            display: inline-block;
            width: 6px;
            height: 26px;
            background: var(--accent);
            border-radius: 3px;
            flex-shrink: 0;
        }

        .content-block p {
            margin-bottom: 16px;
            line-height: 1.9;
            color: var(--text);
        }

        .content-block .text-secondary {
            color: var(--text-secondary);
            font-size: 15px;
        }

        /* Intro image */
        .intro-media {
            margin: 24px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--divider);
        }

        .intro-media img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        /* Protocol cards */
        .protocol-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .protocol-card {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            padding: 24px 24px 20px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .protocol-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .protocol-card .protocol-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(30, 77, 59, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 6px;
        }

        .protocol-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
        }

        .protocol-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin: 0;
        }

        .protocol-card .tag {
            align-self: flex-start;
            margin-top: 6px;
        }

        /* Tags */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            background: rgba(201, 150, 42, 0.12);
            color: #8a6a1a;
            border: 1px solid rgba(201, 150, 42, 0.25);
            line-height: 1.6;
        }

        /* Compare table */
        .table-wrap {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .compare-table th {
            background: var(--primary);
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
        }

        .compare-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--divider);
            color: var(--text);
            line-height: 1.7;
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table tr:hover td {
            background: rgba(201, 150, 42, 0.05);
        }

        .compare-table .protocol-name {
            font-weight: 600;
            color: var(--primary);
        }

        /* Scenarios */
        .scenario-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .scenario-card {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            padding: 26px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
        }

        .scenario-card.first {
            grid-column: span 2;
            display: flex;
            gap: 24px;
            align-items: center;
            background: linear-gradient(120deg, #fff 60%, rgba(30, 77, 59, 0.04) 100%);
        }

        .scenario-card.first .scenario-icon {
            flex-shrink: 0;
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        .scenario-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(201, 150, 42, 0.12);
            color: #8a6a1a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* Flow steps */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: flow;
        }

        .flow-step {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            padding: 28px 20px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
        }

        .flow-step:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .flow-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--dark);
            color: #fff;
            font-family: 'Noto Serif SC', 'SimSun', serif;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
        }

        .flow-step .step-num::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 1px solid rgba(201, 150, 42, 0.35);
        }

        .flow-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .flow-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            margin-top: 8px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(201, 150, 42, 0.4);
        }

        .faq-item.active {
            border-color: var(--accent);
            box-shadow: 0 4px 16px rgba(201, 150, 42, 0.10);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: transparent;
            border: none;
            text-align: left;
            transition: color .3s ease;
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            font-size: 14px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            border-left: 4px solid var(--accent);
            background: rgba(245, 243, 238, 0.7);
            margin: 0 16px 16px;
            border-radius: 0 8px 8px 0;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 20px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: #fff;
            border: 1px solid var(--divider);
            border-radius: var(--radius-card);
            padding: 26px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--divider);
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            letter-spacing: 0.02em;
        }

        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text);
            transition: all .25s ease;
        }

        .sidebar-links a i {
            width: 18px;
            text-align: center;
            color: var(--primary);
            font-size: 14px;
        }

        .sidebar-links a:hover {
            background: rgba(201, 150, 42, 0.10);
            color: var(--accent);
        }

        .sidebar-links a.active {
            background: rgba(30, 77, 59, 0.06);
            color: var(--primary);
            font-weight: 600;
            border-left: 3px solid var(--accent);
        }

        .sidebar-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .sidebar-card .media {
            margin-top: 16px;
            border-radius: 8px;
            overflow: hidden;
        }

        /* ===== Bottom CTA ===== */
        .cat-cta {
            background: var(--dark);
            border-radius: 16px;
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-top: 16px;
        }

        .cat-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 20px 20px;
            pointer-events: none;
        }

        .cat-cta .container-cta {
            position: relative;
            z-index: 1;
        }

        .cat-cta h2 {
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .cat-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cat-cta .btn {
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #C8CFC9;
            padding: 60px 0 24px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            pointer-events: none;
        }

        .site-footer .container {
            position: relative;
            z-index: 1;
        }

        .footer-top {
            display: flex;
            gap: 60px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            flex: 0 0 360px;
        }

        .footer-brand .site-logo {
            margin-bottom: 14px;
        }

        .footer-brand .site-logo .logo-icon {
            background: var(--accent);
        }

        .footer-brand .site-logo span:last-child {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-links {
            flex: 1;
            display: flex;
            gap: 40px;
            justify-content: flex-end;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: none;
        }

        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color .3s ease;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .icp {
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Modal ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(21, 52, 42, 0.5);
            z-index: 300;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal-card {
            width: 440px;
            max-width: 100%;
            background: #fff;
            border-radius: 16px;
            padding: 36px 32px 32px;
            position: relative;
            box-shadow: 0 20px 50px rgba(21, 52, 42, 0.25);
            animation: modalIn .3s ease;
        }

        @keyframes modalIn {
            from {
                opacity: 0;
                transform: translateY(16px) scale(0.96);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
        }

        .modal-close:hover {
            background: rgba(184, 80, 62, 0.12);
            color: var(--danger);
        }

        .modal-card h3 {
            font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            text-align: center;
        }

        .modal-card label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 8px;
        }

        .modal-card input[type="text"],
        .modal-card input[type="password"] {
            width: 100%;
            height: 42px;
            border: 1px solid var(--divider);
            border-radius: 8px;
            padding: 0 14px;
            font-size: 14px;
            background: var(--bg);
            color: var(--text);
            margin-bottom: 18px;
            transition: all .3s ease;
        }

        .modal-card input:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(201, 150, 42, 0.15);
        }

        .modal-card .btn {
            margin-top: 6px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1100px) {
            .search-box {
                width: 130px;
            }

            .nav-link {
                padding: 10px 8px;
                font-size: 14px;
            }

            .main-nav {
                gap: 2px;
                margin-left: 8px;
            }

            .footer-brand {
                flex-basis: 300px;
            }
        }

        @media (max-width: 880px) {
            .cat-content {
                padding: 56px 0 80px;
            }

            .content-main {
                padding-right: 0;
            }

            .sidebar {
                position: static;
                margin-top: 40px;
                gap: 20px;
            }

            .sidebar-card {
                padding: 22px;
            }

            .main-nav,
            .nav-actions {
                display: none;
            }

            .menu-toggle {
                display: flex;
                margin-left: auto;
            }

            .site-header.nav-open .main-nav {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(245, 243, 238, 0.98);
                padding: 20px;
                gap: 6px;
                border-bottom: 1px solid var(--divider);
                box-shadow: 0 12px 30px rgba(21, 52, 42, 0.10);
                margin: 0;
            }

            .site-header.nav-open .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                display: block;
            }

            .nav-link::after {
                display: none;
            }

            .site-header.nav-open .nav-solutions {
                display: block;
            }

            .site-header.nav-open .solutions-trigger {
                font-size: 15px;
                padding: 12px 16px;
                width: 100%;
                justify-content: space-between;
            }

            .solutions-menu {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                border: none;
                border-left: 2px solid rgba(201, 150, 42, 0.3);
                border-radius: 0;
                margin-left: 16px;
                padding: 4px 0 4px 12px;
                min-width: 0;
                display: block;
                background: transparent;
            }

            .solutions-trigger i {
                display: none;
            }

            .site-header.nav-open .nav-actions {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                position: absolute;
                top: auto;
                left: 0;
                right: 0;
                background: rgba(245, 243, 238, 0.98);
                padding: 0 20px 20px;
                border-bottom: 1px solid var(--divider);
                box-shadow: 0 12px 30px rgba(21, 52, 42, 0.08);
                margin: 0;
            }

            .search-box {
                width: 100%;
                margin-bottom: 12px;
            }

            .site-header.nav-open .nav-actions .btn {
                width: 100%;
                margin-bottom: 8px;
            }

            .nav-inner {
                gap: 12px;
            }
        }

        @media (max-width: 640px) {
            .cat-hero {
                min-height: 50vh;
                padding: 120px 0 48px;
            }

            .cat-hero h1 {
                font-size: 30px;
            }

            .cat-hero .hero-desc {
                font-size: 15px;
            }

            .cat-content {
                padding: 40px 0 64px;
            }

            .section-title {
                font-size: 24px;
            }

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

            .scenario-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scenario-card.first {
                grid-column: span 1;
                flex-direction: column;
                align-items: flex-start;
            }

            .flow-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .flow-step {
                padding: 22px 18px;
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
            }

            .flow-step .step-num {
                margin: 0;
                flex-shrink: 0;
            }

            .table-wrap {
                overflow-x: auto;
            }

            .compare-table {
                min-width: 600px;
            }

            .cat-cta {
                padding: 36px 24px;
            }

            .cat-cta h2 {
                font-size: 24px;
            }

            .footer-top {
                flex-direction: column;
                gap: 32px;
            }

            .footer-brand {
                flex-basis: auto;
            }

            .footer-links {
                flex-wrap: wrap;
                gap: 24px;
                justify-content: flex-start;
            }

            .footer-col {
                min-width: 120px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .btn {
                width: 100%;
                max-width: 100%;
            }

            .btn-sm {
                width: auto;
                padding: 10px 18px;
            }

            .modal-card {
                padding: 28px 20px 24px;
            }
        }

/* roulang page: category3 */
:root{
  --primary:#1E4D3B;
  --accent:#C9962A;
  --bg:#F5F3EE;
  --dark:#15342A;
  --text:#232621;
  --text-secondary:#6B716A;
  --divider:#E3DFD6;
  --danger:#B8503E;
  --success:#2E7D5B;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-search:20px;
  --radius-badge:999px;
  --shadow-card:0 2px 10px rgba(21,52,42,0.05);
  --shadow-hover:0 8px 24px rgba(21,52,42,0.10);
  --shadow-cta:0 6px 20px rgba(201,150,42,0.35);
  --shadow-nav:0 2px 12px rgba(21,52,42,0.08);
  --font-serif:"Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px;outline:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 4px rgba(201,150,42,.15)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.row{max-width:1200px;margin:0 auto}
h1,h2,h3,h4{font-weight:700;line-height:1.4;letter-spacing:.02em}
/* ===== Header Nav ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(245,243,238,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(227,223,214,.6);transition:var(--transition)}
.site-header.scrolled{box-shadow:var(--shadow-nav)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 20px;height:72px;display:flex;align-items:center;gap:20px;position:relative}
.site-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--primary);white-space:nowrap;flex-shrink:0}
.site-logo .logo-icon{display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:var(--primary);color:var(--bg);border-radius:8px;font-size:14px}
.site-logo:hover{color:var(--primary)}
.menu-toggle{display:none;background:none;border:none;font-size:22px;color:var(--primary);padding:8px;border-radius:6px}
.header-nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1;gap:16px}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-link{display:block;padding:8px 12px;font-size:15px;color:var(--text);font-weight:500;border-radius:6px;position:relative}
.nav-link:hover{color:var(--primary);background:rgba(30,77,59,.06)}
.nav-link.active{color:var(--accent);font-weight:600}
.nav-solutions{position:relative}
.solutions-trigger{display:flex;align-items:center;gap:6px;padding:8px 12px;font-size:15px;color:var(--text);font-weight:500;border-radius:6px;cursor:pointer}
.solutions-trigger:hover{color:var(--primary);background:rgba(30,77,59,.06)}
.solutions-trigger i{font-size:11px;transition:var(--transition)}
.nav-solutions:hover .solutions-trigger i{transform:rotate(180deg)}
.solutions-menu{position:absolute;top:100%;left:0;min-width:220px;background:var(--bg);border:1px solid var(--divider);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:6px;opacity:0;visibility:hidden;transform:translateY(8px);transition:var(--transition);z-index:100}
.nav-solutions:hover .solutions-menu{opacity:1;visibility:visible;transform:translateY(0)}
.solutions-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;font-size:14px;color:var(--text)}
.solutions-menu a i{width:18px;text-align:center;color:var(--primary)}
.solutions-menu a:hover{background:rgba(30,77,59,.06);color:var(--primary)}
.solutions-menu a.active{background:rgba(201,150,42,.1);color:var(--accent);font-weight:600}
.solutions-menu a.active i{color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{position:relative;width:160px}
.search-box input{width:100%;height:40px;border:1px solid var(--divider);border-radius:var(--radius-search);background:#fff;padding:0 34px 0 14px;font-size:14px;color:var(--text);transition:var(--transition)}
.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(201,150,42,.12)}
.search-box i{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:14px;color:var(--text-secondary);pointer-events:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;border-radius:var(--radius-btn);font-size:14px;font-weight:600;border:1px solid transparent;transition:var(--transition);white-space:nowrap;cursor:pointer}
.btn-ghost{background:transparent;border-color:var(--divider);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(30,77,59,.06);transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--dark);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-cta)}
.btn-accent:hover{background:#b58420;transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,150,42,.4)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-2px)}
.btn-lg{height:48px;padding:0 30px;font-size:16px}
/* ===== Category Hero ===== */
.cat-hero{position:relative;min-height:40vh;background:var(--dark);display:flex;align-items:center;justify-content:center;text-align:center;margin-top:72px;padding:80px 20px 90px;overflow:hidden}
.cat-hero .hero-bg{position:absolute;top:0;left:0;right:0;bottom:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.25}
.cat-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(rgba(245,243,238,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(245,243,238,.03) 1px,transparent 1px);background-size:20px 20px;z-index:1}
.cat-hero-content{position:relative;z-index:2;max-width:780px}
.cat-hero .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,243,238,.15);border:1px solid rgba(201,150,42,.4);color:var(--accent);font-size:13px;font-weight:600;padding:6px 16px;border-radius:var(--radius-badge);margin-bottom:20px;letter-spacing:.05em;backdrop-filter:blur(6px)}
.cat-hero h1{font-family:var(--font-serif);font-size:38px;color:#fff;margin-bottom:14px;line-height:1.3}
.cat-hero .hero-sub{font-size:16px;color:rgba(255,255,255,.75);max-width:600px;margin:0 auto;line-height:1.8}
/* ===== Main Layout ===== */
.cat-main{padding:80px 0;background:var(--bg)}
.cat-main .row{display:flex;flex-wrap:wrap;gap:40px}
.cat-content{flex:1 1 0;min-width:0}
.cat-sidebar{width:300px;flex-shrink:0}
/* ===== Content modules ===== */
.content-module{margin-bottom:72px}
.content-module:last-child{margin-bottom:0}
.module-title{font-family:var(--font-serif);font-size:28px;color:var(--primary);margin-bottom:10px;position:relative;padding-bottom:16px}
.module-title::after{content:'';position:absolute;bottom:0;left:0;width:48px;height:3px;background:var(--accent);border-radius:2px}
.module-desc{color:var(--text-secondary);font-size:15px;margin-bottom:28px;line-height:1.8}
.intro-block{display:flex;flex-wrap:wrap;gap:32px;align-items:center;background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-card)}
.intro-block .intro-text{flex:1 1 380px}
.intro-block .intro-media{flex:0 0 320px}
.intro-block .intro-media img{border-radius:var(--radius-card);width:100%;height:220px;object-fit:cover;box-shadow:var(--shadow-card)}
.intro-block p{font-size:15px;line-height:1.9;color:var(--text)}
.intro-block p + p{margin-top:14px}
.intro-block .quote-line{border-left:4px solid var(--accent);background:rgba(201,150,42,.06);padding:12px 18px;border-radius:0 8px 8px 0;font-size:15px;line-height:1.8;color:var(--primary);margin-top:18px;font-weight:500}
/* ===== Capability asymmetric grid ===== */
.cap-grid{display:grid;grid-template-columns:1.1fr .9fr;grid-template-rows:auto auto;gap:20px}
.cap-card{background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);padding:28px;position:relative;transition:var(--transition)}
.cap-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.cap-card.featured{grid-row:span 2}
.cap-card .cap-icon{width:48px;height:48px;border-radius:12px;background:rgba(30,77,59,.08);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--primary);margin-bottom:18px;transition:var(--transition)}
.cap-card:hover .cap-icon{background:var(--primary);color:#fff}
.cap-card h3{font-size:19px;font-weight:700;color:var(--text);margin-bottom:10px}
.cap-card p{font-size:14px;color:var(--text-secondary);line-height:1.8}
.cap-card .cap-tag{display:inline-block;background:rgba(201,150,42,.1);color:var(--accent);font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--radius-badge);margin-bottom:14px}
.cap-card ul{list-style:none;padding:0;margin:14px 0 0}
.cap-card ul li{font-size:14px;color:var(--text);padding:5px 0 5px 24px;position:relative}
.cap-card ul li::before{content:'\2713';position:absolute;left:0;top:5px;color:var(--accent);font-weight:700}
/* ===== Policy types ===== */
.policy-list{display:flex;flex-direction:column;gap:16px}
.policy-item{display:flex;gap:20px;background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);padding:24px 28px;transition:var(--transition)}
.policy-item:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateX(4px)}
.policy-number{flex-shrink:0;width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:18px;font-weight:700}
.policy-text{flex:1}
.policy-text h3{font-size:18px;color:var(--primary);margin-bottom:6px}
.policy-text p{font-size:14px;color:var(--text-secondary);line-height:1.8}
.policy-text .policy-tags{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.policy-text .policy-tags span{font-size:12px;background:rgba(30,77,59,.08);color:var(--primary);padding:2px 10px;border-radius:var(--radius-badge);font-weight:500}
/* ===== Process steps ===== */
.steps-wrap{position:relative;display:flex;flex-wrap:wrap;gap:0;background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);padding:36px 24px;box-shadow:var(--shadow-card)}
.step-item{flex:1 1 200px;text-align:center;position:relative;padding:0 18px}
.step-item::after{content:'';position:absolute;top:24px;right:-10px;width:20px;height:2px;background:var(--divider)}
.step-item:last-child::after{display:none}
.step-num{width:48px;height:48px;margin:0 auto 14px;border-radius:50%;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:19px;font-weight:700;position:relative;z-index:1;box-shadow:0 0 0 4px var(--bg)}
.step-item h3{font-size:16px;color:var(--text);margin-bottom:8px}
.step-item p{font-size:13px;color:var(--text-secondary);line-height:1.7}
/* ===== FAQ ===== */
.faq-wrap{background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item:last-child{border-bottom:none}
.faq-question{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:22px 28px;background:none;border:none;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{width:28px;height:28px;border-radius:50%;background:rgba(30,77,59,.08);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--primary);transition:var(--transition);flex-shrink:0}
.faq-item.active .faq-icon{background:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;background:var(--bg);border-left:4px solid var(--accent)}
.faq-answer-inner{padding:18px 28px 22px;font-size:14px;color:var(--text-secondary);line-height:1.9}
/* ===== Sidebar ===== */
.sidebar-card{background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);padding:24px;margin-bottom:24px;box-shadow:var(--shadow-card);transition:var(--transition)}
.sidebar-card:hover{box-shadow:var(--shadow-hover)}
.sidebar-card .side-title{font-size:16px;font-weight:700;color:var(--primary);padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--divider);display:flex;align-items:center;gap:8px}
.sidebar-card .side-title i{color:var(--accent)}
.side-links{display:flex;flex-direction:column;gap:6px}
.side-link{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;font-size:14px;color:var(--text);background:var(--bg);transition:var(--transition);border:1px solid transparent}
.side-link i{color:var(--primary);width:18px;text-align:center}
.side-link:hover{background:rgba(30,77,59,.06);color:var(--primary);border-color:var(--divider);transform:translateX(3px)}
.side-link.active{background:rgba(201,150,42,.1);color:var(--accent);border-color:rgba(201,150,42,.2);font-weight:600}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{font-size:13px;background:var(--bg);border:1px solid var(--divider);padding:5px 12px;border-radius:var(--radius-badge);color:var(--text-secondary);transition:var(--transition)}
.side-tags a:hover{border-color:var(--accent);color:var(--accent);background:rgba(201,150,42,.06)}
.side-cta{background:linear-gradient(135deg,var(--primary),var(--dark));color:#fff;border:none}
.side-cta h3{font-family:var(--font-serif);font-size:19px;color:#fff;margin-bottom:8px}
.side-cta p{font-size:13px;color:rgba(255,255,255,.75);line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%}
/* ===== Bottom CTA ===== */
.cat-cta{background:linear-gradient(135deg,var(--dark),var(--primary));padding:70px 20px;text-align:center;position:relative;overflow:hidden}
.cat-cta::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(rgba(245,243,238,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(245,243,238,.03) 1px,transparent 1px);background-size:20px 20px}
.cat-cta .cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cat-cta h2{font-family:var(--font-serif);font-size:28px;color:#fff;margin-bottom:12px}
.cat-cta p{color:rgba(255,255,255,.8);font-size:15px;margin-bottom:28px;line-height:1.8}
.cat-cta .btn-group{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
/* ===== Footer ===== */
.site-footer{background:var(--dark);color:#C8CFC9;padding:60px 0 0;position:relative}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{max-width:320px}
.footer-brand .site-logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;color:#8A948E;line-height:1.8;margin-top:14px}
.footer-links{display:flex;gap:60px;flex-wrap:wrap}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--accent);border-radius:2px}
.footer-col a{display:block;font-size:14px;color:#8A948E;padding:5px 0;transition:var(--transition)}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;flex-wrap:wrap;gap:8px;font-size:13px;color:#6B716A}
.footer-bottom .icp{font-size:12px}
/* ===== Floating CTA ===== */
.float-cta{position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;border:none;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--shadow-cta);z-index:500;transition:var(--transition);opacity:0;visibility:hidden;transform:translateY(20px)}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{transform:translateY(-4px) scale(1.05);background:#b58420;color:#fff}
.float-cta:active{transform:translateY(0) scale(.95)}
/* ===== Responsive ===== */
@media(max-width:880px){
  .menu-toggle{display:block}
  .header-nav-wrap{position:fixed;top:72px;left:0;right:0;bottom:0;background:var(--bg);flex-direction:column;justify-content:flex-start;align-items:stretch;padding:20px;display:flex;max-height:0;overflow:hidden;opacity:0;transition:max-height .35s ease,opacity .3s ease;box-shadow:var(--shadow-nav)}
  .header-nav-wrap.open{max-height:calc(100vh - 72px);opacity:1;overflow-y:auto}
  .main-nav{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{padding:14px 16px;font-size:16px}
  .nav-solutions{margin-top:8px;border-top:1px solid var(--divider);padding-top:8px}
  .solutions-trigger{padding:14px 16px;font-size:16px}
  .solutions-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 0 16px;background:transparent}
  .solutions-menu a{padding:12px 14px;font-size:15px}
  .header-actions{margin-top:16px;flex-wrap:wrap;gap:12px;border-top:1px solid var(--divider);padding-top:16px}
  .search-box{flex:1 1 100%}
  .cat-sidebar{width:100%;margin-top:20px}
  .cap-grid{grid-template-columns:1fr}
  .cap-card.featured{grid-row:auto}
  .steps-wrap{flex-direction:column;align-items:stretch;padding:24px}
  .step-item{display:flex;gap:16px;text-align:left;padding:12px 0}
  .step-item::after{top:auto;right:auto;bottom:-14px;left:24px;width:2px;height:16px}
  .step-item:last-child::after{display:none}
  .step-num{margin:0;flex-shrink:0;width:40px;height:40px;font-size:16px}
  .intro-block .intro-media{flex:1 1 100%}
}
@media(max-width:640px){
  .site-header .header-inner{height:64px}
  .site-logo{font-size:15px}
  .site-logo .logo-icon{width:26px;height:26px;font-size:12px}
  .header-nav-wrap{top:64px}
  .cat-hero{margin-top:64px;min-height:50vh;padding:60px 16px 70px}
  .cat-hero h1{font-size:30px}
  .cat-hero .hero-sub{font-size:15px}
  .cat-main{padding:48px 0}
  .container{padding:0 16px}
  .content-module{margin-bottom:48px}
  .module-title{font-size:24px}
  .float-cta{width:48px;height:48px;right:16px;bottom:16px;font-size:16px}
  body{padding-bottom:0}
  .footer-top{gap:32px;flex-direction:column}
  .footer-links{gap:32px;flex-direction:column}
  .footer-bottom{justify-content:center;text-align:center}
  .btn-lg{width:100%}
  .cat-cta{padding:48px 16px}
  .cat-cta h2{font-size:24px}
}

/* roulang page: category2 */
:root {
      --primary: #1E4D3B;
      --accent: #C9962A;
      --bg: #F5F3EE;
      --dark: #15342A;
      --body: #232621;
      --muted: #6B716A;
      --divider: #E3DFD6;
      --danger: #B8503E;
      --success: #2E7D5B;
      --white: #FFFFFF;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-pill: 999px;
      --shadow-card: 0 2px 10px rgba(21, 52, 42, 0.05);
      --shadow-hover: 0 8px 24px rgba(21, 52, 42, 0.10);
      --shadow-cta: 0 6px 20px rgba(201, 150, 42, 0.35);
      --shadow-nav: 0 2px 12px rgba(21, 52, 42, 0.08);
      --font-serif: "Noto Serif SC", "Source Han Serif SC", SimSun, serif;
      --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
      --transition: 0.25s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.8;
      color: var(--body);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      font-family: var(--font-serif);
      color: var(--primary);
      margin: 0 0 16px;
      letter-spacing: 0.02em;
      line-height: 1.35;
    }

    h1 {
      font-size: 38px;
      font-weight: 700;
    }

    h2 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 32px;
    }

    h3 {
      font-family: var(--font-sans);
      font-size: 20px;
      font-weight: 600;
    }

    h4 {
      font-family: var(--font-sans);
      font-size: 16px;
      font-weight: 600;
    }

    p {
      margin: 0 0 24px;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

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

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

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

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

    input:focus,
    button:focus,
    a:focus {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-btn);
      border: 1px solid transparent;
      cursor: pointer;
      text-align: center;
      transition: all var(--transition);
      line-height: 1.4;
    }

    .btn-sm {
      padding: 9px 20px;
      font-size: 14px;
    }

    .btn-accent {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
      box-shadow: 0 2px 8px rgba(201, 150, 42, 0.25);
    }

    .btn-accent:hover {
      background: #b07e1e;
      border-color: #b07e1e;
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-cta);
    }

    .btn-accent:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-outline:active {
      transform: translateY(0);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.6);
      color: #fff;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.2);
      border-color: #fff;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-ghost:active {
      transform: translateY(0);
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      height: 72px;
      background: rgba(245, 243, 238, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--divider);
      transition: box-shadow var(--transition);
    }

    .site-header.scrolled {
      box-shadow: var(--shadow-nav);
    }

    .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .site-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      color: var(--primary);
      font-size: 18px;
      font-weight: 700;
    }

    .site-logo .logo-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--primary);
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      flex-shrink: 0;
    }

    .site-logo:hover {
      color: var(--primary);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-left: auto;
    }

    .nav-link {
      padding: 8px 12px;
      font-size: 15px;
      font-weight: 500;
      color: var(--body);
      border-bottom: 2px solid transparent;
      position: relative;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 12px;
      right: 100%;
      bottom: 6px;
      height: 2px;
      background: var(--accent);
      transition: right var(--transition);
    }

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

    .nav-link:hover::after {
      right: 12px;
    }

    .nav-solutions {
      position: relative;
      margin-left: 4px;
    }

    .solutions-trigger {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      font-size: 15px;
      font-weight: 500;
      color: var(--body);
      border-radius: 6px;
      border-bottom: 2px solid transparent;
    }

    .solutions-trigger.active,
    .solutions-trigger:hover {
      color: var(--accent);
    }

    .solutions-menu {
      position: absolute;
      top: calc(100% + 8px);
      left: 0;
      min-width: 240px;
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-nav);
      padding: 10px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all var(--transition);
      z-index: 20;
    }

    .nav-solutions:hover .solutions-menu,
    .nav-solutions:focus-within .solutions-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .solutions-menu a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 14px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--body);
    }

    .solutions-menu a i {
      width: 20px;
      color: var(--accent);
      text-align: center;
    }

    .solutions-menu a:hover,
    .solutions-menu a.active {
      background: var(--bg);
      color: var(--primary);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 8px;
      flex-shrink: 0;
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 6px;
      width: 180px;
      height: 36px;
      padding: 0 14px;
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: 20px;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .search-box i {
      color: var(--muted);
      font-size: 13px;
    }

    .search-box input {
      border: none;
      outline: none;
      background: transparent;
      width: 100%;
      font-size: 13px;
      color: var(--body);
    }

    .search-box:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(201, 150, 42, 0.15);
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--divider);
      background: #fff;
      border-radius: 8px;
      font-size: 18px;
      color: var(--primary);
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .nav-toggle:hover {
      border-color: var(--accent);
      color: var(--accent);
    }

    .hero {
      min-height: 40vh;
      padding: 152px 0 88px;
      background-color: var(--dark);
      background-image: url("/assets/images/backpic/back-1.webp"), linear-gradient(45deg, #1E4D3B 0%, #15342A 100%);
      background-size: cover;
      background-position: center;
      background-blend-mode: multiply;
      position: relative;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(245, 243, 238, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 243, 238, 0.05) 1px, transparent 1px);
      background-size: 20px 20px;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 800px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      background: #fff;
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 18px;
      border-radius: var(--radius-pill);
      letter-spacing: 0.05em;
      margin-bottom: 24px;
    }

    .hero h1 {
      color: #fff;
      margin-bottom: 18px;
    }

    .hero-sub {
      color: rgba(245, 243, 238, 0.88);
      font-size: 17px;
      max-width: 560px;
      margin: 0 auto 34px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .content-section {
      padding: 64px 0 88px;
    }

    .category-layout {
      display: grid;
      grid-template-columns: 1fr 320px;
      gap: 32px;
      align-items: start;
    }

    .main-content {
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 44px 44px 48px;
    }

    .prose-block p {
      color: var(--body);
      margin-bottom: 24px;
    }

    .prose-block p:last-child {
      margin-bottom: 0;
    }

    .capability-grid {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 24px;
      margin: 40px 0 56px;
    }

    .capability-card {
      background: var(--bg);
      border: 1px solid var(--divider);
      border-radius: var(--radius-card);
      padding: 28px;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .capability-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .capability-card:nth-child(3) {
      grid-column: 1 / -1;
      display: flex;
      gap: 20px;
      align-items: flex-start;
    }

    .capability-card:nth-child(3) .cap-icon {
      flex-shrink: 0;
    }

    .cap-icon {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 16px;
    }

    .capability-card h3 {
      margin-bottom: 10px;
    }

    .capability-card p {
      font-size: 15px;
      color: var(--muted);
      margin: 0;
      line-height: 1.7;
    }

    .flow-block {
      margin: 0 0 56px;
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 28px;
    }

    .flow-step {
      position: relative;
      padding: 24px 20px;
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: var(--radius-card);
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .flow-step:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .step-num {
      display: block;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: var(--accent);
      font-family: var(--font-serif);
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .flow-step h3 {
      font-size: 16px;
      margin-bottom: 8px;
    }

    .flow-step p {
      font-size: 14px;
      color: var(--muted);
      margin: 0;
      line-height: 1.65;
    }

    .scenario-section {
      margin-bottom: 48px;
    }

    .scenario-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
      margin-bottom: 40px;
    }

    .scenario-row.reversed .scenario-media {
      order: 2;
    }

    .scenario-media {
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--divider);
    }

    .scenario-media img {
      width: 100%;
      height: 230px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .scenario-media:hover img {
      transform: scale(1.03);
    }

    .scenario-text h3 {
      margin-bottom: 12px;
    }

    .scenario-text p {
      color: var(--muted);
      font-size: 15px;
      margin-bottom: 16px;
    }

    .scenario-text ul li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 8px;
      font-size: 14px;
      color: var(--body);
    }

    .scenario-text ul li::before {
      content: "\f00c";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      left: 0;
      top: 0;
      color: var(--accent);
      font-size: 13px;
    }

    .security-band {
      background: var(--dark);
      border-radius: var(--radius-card);
      padding: 36px 28px;
      display: flex;
      align-items: center;
      gap: 32px;
      flex-wrap: wrap;
    }

    .security-stats {
      display: flex;
      gap: 28px;
      flex-wrap: wrap;
    }

    .stat {
      text-align: center;
    }

    .stat-num {
      display: block;
      font-family: var(--font-serif);
      font-size: 40px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1.1;
    }

    .stat-label {
      display: block;
      font-size: 13px;
      color: rgba(245, 243, 238, 0.75);
      margin-top: 4px;
    }

    .security-band p {
      flex: 1;
      color: rgba(245, 243, 238, 0.88);
      font-size: 15px;
      margin: 0;
      min-width: 220px;
    }

    .sidebar {
      position: sticky;
      top: 96px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .side-card {
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: var(--radius-card);
      padding: 24px 22px;
      box-shadow: var(--shadow-card);
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .side-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
    }

    .side-card h4 {
      color: var(--primary);
      font-size: 15px;
      margin-bottom: 18px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--divider);
      letter-spacing: 0.03em;
    }

    .side-card > a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 0;
      font-size: 14px;
      color: var(--body);
      border-radius: 6px;
    }

    .side-card > a i {
      color: var(--accent);
      width: 20px;
      text-align: center;
      font-size: 14px;
    }

    .side-card > a:hover,
    .side-card > a.active {
      color: var(--accent);
    }

    .side-card ul li {
      position: relative;
      padding: 6px 0 6px 24px;
      font-size: 14px;
      color: var(--body);
    }

    .side-card ul li::before {
      content: "\f058";
      font-family: "Font Awesome 6 Free";
      font-weight: 400;
      position: absolute;
      left: 0;
      top: 7px;
      color: var(--accent);
      font-size: 14px;
    }

    .highlight-card {
      background: var(--bg);
      border-left: 4px solid var(--accent);
    }

    .highlight-card h4 {
      color: var(--accent);
    }

    .faq-section {
      padding: 72px 0 88px;
      background: #fff;
    }

    .faq-section h2 {
      text-align: center;
    }

    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      border-top: 1px solid var(--divider);
    }

    .faq-item {
      border-bottom: 1px solid var(--divider);
      background: #fff;
    }

    .accordion-title.faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-family: var(--font-sans);
      font-size: 16px;
      font-weight: 600;
      color: var(--body);
      padding: 18px 4px;
      background: transparent;
      border: 0;
      line-height: 1.5;
    }

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

    .accordion-title.faq-question::before {
      content: "\f067";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 14px;
      color: var(--accent);
      width: 22px;
      text-align: center;
      order: 2;
      transition: transform var(--transition);
    }

    .accordion-item.is-active > .accordion-title.faq-question::before {
      content: "\f068";
      transform: rotate(180deg);
    }

    .accordion-content.faq-answer {
      background: var(--bg);
      border-left: 4px solid var(--accent);
      border-radius: 0 8px 8px 0;
      padding: 16px 22px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.75;
    }

    .accordion-content.faq-answer p {
      margin: 0;
    }

    .cta-section {
      background-color: var(--dark);
      background-image: linear-gradient(45deg, #15342A 0%, #1E4D3B 100%);
      position: relative;
      padding: 88px 0;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(245, 243, 238, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 243, 238, 0.05) 1px, transparent 1px);
      background-size: 20px 20px;
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 680px;
    }

    .cta-section h2 {
      color: #fff;
      margin-bottom: 16px;
    }

    .cta-section p {
      color: rgba(245, 243, 238, 0.85);
      font-size: 16px;
      margin-bottom: 30px;
    }

    .site-footer {
      background: var(--dark);
      color: #C8CFC9;
      padding: 64px 0 24px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 2fr;
      gap: 48px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand .site-logo {
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand .site-logo .logo-icon {
      background: var(--accent);
      color: var(--dark);
    }

    .footer-brand p {
      font-size: 14px;
      color: rgba(200, 207, 201, 0.8);
      margin: 14px 0 0;
      max-width: 360px;
      line-height: 1.7;
    }

    .footer-links {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.04em;
    }

    .footer-col a {
      display: block;
      padding: 4px 0;
      font-size: 14px;
      color: #C8CFC9;
    }

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

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding-top: 24px;
      font-size: 13px;
      color: rgba(200, 207, 201, 0.6);
      flex-wrap: wrap;
    }

    .footer-bottom .icp {
      color: rgba(200, 207, 201, 0.5);
    }

    .back-to-top {
      position: fixed;
      right: 28px;
      bottom: 36px;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--accent);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: var(--shadow-cta);
      z-index: 90;
      opacity: 0;
      visibility: hidden;
      transform: translateY(12px);
      transition: opacity var(--transition), transform var(--transition), background var(--transition), visibility var(--transition);
    }

    .back-to-top.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .back-to-top:hover {
      background: #b07e1e;
      color: #fff;
      transform: translateY(-3px);
    }

    .back-to-top:active {
      transform: translateY(0);
    }

    @media (max-width: 1024px) {
      .category-layout {
        grid-template-columns: 1fr 280px;
      }

      .main-content {
        padding: 32px 28px;
      }

      .header-actions .search-box {
        width: 140px;
      }

      .header-inner {
        gap: 16px;
      }
    }

    @media (max-width: 880px) {
      .nav-toggle {
        display: inline-flex;
      }

      .header-inner {
        gap: 12px;
      }

      .main-nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--divider);
        box-shadow: var(--shadow-nav);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 24px;
        gap: 4px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.35s ease, opacity 0.3s ease;
      }

      .main-nav.open {
        max-height: 560px;
        opacity: 1;
      }

      .nav-link,
      .solutions-trigger {
        padding: 12px 8px;
        font-size: 15px;
        display: block;
      }

      .nav-link::after {
        display: none;
      }

      .nav-solutions {
        margin: 0;
      }

      .solutions-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: 0;
        padding: 0 0 0 12px;
        background: transparent;
      }

      .solutions-menu a {
        padding: 10px 8px;
      }

      .header-actions {
        margin-left: auto;
      }

      .header-actions .btn-text {
        display: none;
      }
    }

    @media (max-width: 640px) {
      body {
        font-size: 15px;
      }

      h1 {
        font-size: 30px;
      }

      h2 {
        font-size: 24px;
        margin-bottom: 24px;
      }

      .header-inner {
        gap: 8px;
      }

      .header-actions .search-box {
        display: none;
      }

      .header-actions .btn-outline {
        padding: 8px 14px;
        font-size: 13px;
      }

      .header-actions .btn-accent {
        padding: 8px 14px;
        font-size: 13px;
      }

      .hero {
        padding: 120px 0 64px;
        min-height: 56vh;
      }

      .hero-actions {
        flex-direction: column;
        align-items: center;
      }

      .hero-actions .btn {
        width: 100%;
        max-width: 280px;
      }

      .content-section {
        padding: 40px 0 56px;
      }

      .category-layout {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .main-content {
        padding: 24px 18px;
      }

      .capability-grid {
        grid-template-columns: 1fr;
      }

      .capability-card:nth-child(3) {
        grid-column: 1;
        flex-direction: column;
      }

      .flow-steps {
        grid-template-columns: 1fr;
      }

      .scenario-row,
      .scenario-row.reversed {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .scenario-row.reversed .scenario-media {
        order: 0;
      }

      .scenario-media img {
        height: 190px;
      }

      .security-band {
        padding: 24px 18px;
        gap: 20px;
      }

      .security-stats {
        gap: 20px;
        justify-content: space-between;
        width: 100%;
      }

      .stat-num {
        font-size: 30px;
      }

      .sidebar {
        position: static;
      }

      .faq-section {
        padding: 56px 0;
      }

      .cta-section {
        padding: 64px 0;
      }

      .cta-section .btn {
        width: 100%;
        max-width: 280px;
      }

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

      .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .back-to-top {
        right: 16px;
        bottom: 20px;
        width: 44px;
        height: 44px;
        font-size: 16px;
      }
    }

    @media (max-width: 520px) {
      .header-actions .btn-outline {
        display: none;
      }

      .header-actions .btn-accent {
        padding: 8px 16px;
      }

      .hero-sub {
        font-size: 15px;
      }

      .footer-links {
        grid-template-columns: 1fr;
      }

      .main-nav {
        padding-left: 16px;
        padding-right: 16px;
      }
    }