/* roulang page: index */
:root {
  --primary-600: #0B6B5A;
  --primary-500: #12806C;
  --primary-100: #E6F4F0;
  --primary-200: #C9E7DF;
  --accent: #D9A441;
  --accent-100: #FAF2E0;
  --bg: #F8FAF9;
  --card-bg: #FFFFFF;
  --dark: #0E3E35;
  --dark-800: #163F36;
  --heading: #10241F;
  --body: #2E3D38;
  --muted: #6B7C76;
  --border: #E3EEE9;
  --success: #1F9D6B;
  --warning: #D9A441;
  --danger: #D9534F;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 8px 24px rgba(16, 36, 31, 0.06);
  --shadow-md: 0 16px 40px rgba(16, 36, 31, 0.12);
  --shadow-lg: 0 24px 60px rgba(16, 36, 31, 0.16);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
  --container: 1140px;
  --space-section: 96px;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary-600); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-500); }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5 { color: var(--heading); line-height: 1.3; font-weight: 700; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* 复用按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: #095246;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-primary:focus-visible,
.btn-outline:focus-visible,
.btn-ghost:focus-visible,
.nav-toggle:focus-visible,
.faq-toggle:focus-visible,
a:focus-visible,
input:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(11, 107, 90, 0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--primary-600);
  border: 1.5px solid var(--primary-600);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-outline:hover {
  background: rgba(11, 107, 90, 0.08);
  border-color: #095246;
  color: #095246;
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--primary-600);
  border: none;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-ghost:hover {
  background: rgba(11, 107, 90, 0.08);
  color: #095246;
}

.btn-lg { padding: 15px 36px; font-size: 16px; }

/* 导航卡片面板 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 24px 0;
}

.nav-panel {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 0 20px 0 28px;
  height: 68px;
  transition: all var(--transition);
}

.site-header .nav-panel.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.92);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--heading);
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: var(--primary-600);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.logo-mark svg { width: 24px; height: 24px; }

.logo-text {
  font-weight: 700;
  font-size: 18px;
  color: var(--heading);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
  padding: 0 16px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  color: var(--body);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  background: var(--primary-100);
  color: var(--primary-600);
}
.nav-link.active {
  background: var(--primary-600);
  color: #fff;
}
.nav-link.active:hover {
  background: var(--primary-600);
  color: #fff;
}

.nav-cta {
  margin-left: auto;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 12px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: all var(--transition);
}
.nav-toggle:hover { background: var(--primary-100); }
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--heading);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hero */
.hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding: 128px 0 112px;
  margin-top: -16px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255,255,255,0.94) 0%, rgba(255,255,255,0.88) 45%, rgba(255,255,255,0.55) 100%);
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-left { flex: 1.05; }
.hero-right { flex: 0.95; }

.hero h1 {
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1.25;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.hero h1 .hl {
  color: var(--primary-600);
  position: relative;
}
.hero-sub {
  font-size: 18px;
  color: var(--body);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
  height: 380px;
}

.hero-deco {
  position: absolute;
  right: 24px;
  bottom: 24px;
  z-index: 1;
  color: rgba(11, 107, 90, 0.25);
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  writing-mode: vertical-rl;
}

/* 证据条 */
.stats-section {
  padding: 32px 0 16px;
  position: relative;
  z-index: 3;
}

.stats-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  gap: 32px;
  flex-wrap: wrap;
}

.stat-item {
  flex: 1;
  min-width: 120px;
  text-align: left;
  padding-left: 24px;
  border-left: 2px solid var(--primary-100);
}
.stat-item:first-child { border-left: none; padding-left: 0; }

.stat-item strong {
  display: block;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1.2;
  margin-bottom: 4px;
}
.stat-item span { font-size: 14px; color: var(--muted); }

/* 通用区块 */
.section-block { padding: var(--space-section) 0; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  margin-bottom: 8px;
}
.section-head p {
  color: var(--muted);
  font-size: 16px;
}

/* 卖点区 2+1 非对称 */
.features-section { background: var(--bg); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.features-grid .feature-card:last-child {
  grid-row: span 2;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.feature-card .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-100);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-card .feature-icon svg { width: 24px; height: 24px; }
.feature-card h3 { font-size: 20px; margin-bottom: 12px; }
.feature-card p { color: var(--muted); font-size: 15px; line-height: 1.8; }

.feature-card.feature-wide {
  background: var(--dark);
  border-color: var(--dark);
  color: rgba(255,255,255,0.8);
  display: flex;
  flex-direction: column;
}
.feature-card.feature-wide h3 { color: #fff; }
.feature-card.feature-wide p { color: rgba(255,255,255,0.7); }
.feature-card.feature-wide .feature-icon { background: rgba(255,255,255,0.12); color: var(--accent); }
.feature-wide-img {
  margin-top: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.feature-wide-img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.feature-card.feature-wide:hover .feature-wide-img img { transform: scale(1.03); }
.feature-card .feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.feature-card .feature-link:hover { color: #D9A441aa; }

/* 流程区 */
.process-section { background: #fff; }

.process-wrap {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.process-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.process-step {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 28px;
  top: 68px;
  bottom: -12px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--primary-200) 0 4px, transparent 4px 8px);
}

.step-num {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--primary-600);
  color: #fff;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(11,107,90,0.3);
  position: relative;
  z-index: 1;
}
.process-step:nth-child(even) .step-num {
  background: var(--accent);
  box-shadow: 0 6px 16px rgba(217,164,65,0.3);
}

.step-content { padding-top: 6px; }
.step-content h3 { font-size: 18px; margin-bottom: 6px; }
.step-content p { color: var(--muted); font-size: 14px; line-height: 1.7; }

.process-demo {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: rgba(255,255,255,0.75);
  position: relative;
  overflow: hidden;
}
.process-demo::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(217,164,65,0.12);
}
.process-demo h3 { color: #fff; margin-bottom: 20px; font-size: 20px; }
.process-demo-idle {
  background: rgba(255,255,255,0.06);
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 16px;
}
.process-demo-idle .demo-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(217,164,65,0.25);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.process-demo-idle p { font-size: 14px; color: rgba(255,255,255,0.7); }
.process-demo-tip {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
}

/* 评价区 */
.testimonials-section { background: var(--bg); }

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.testimonials-grid .t-card:nth-child(even) {
  transform: translateY(32px);
}
.t-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.t-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.t-card:nth-child(even):hover { transform: translateY(28px); }
.t-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--primary-100);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 16px;
}
.t-card blockquote {
  font-size: 15px;
  line-height: 1.9;
  color: var(--body);
  margin-bottom: 16px;
  font-style: normal;
}
.t-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.t-user strong { font-size: 14px; color: var(--heading); }
.t-user span { font-size: 13px; color: var(--muted); }

/* 价格区 */
.pricing-section { background: #fff; }

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.price-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}
.price-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.price-card .price-name { font-size: 18px; font-weight: 700; color: var(--heading); margin-bottom: 6px; }
.price-card .price-desc { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 24px; }
.price-num {
  font-family: var(--font-num);
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1.2;
  margin-bottom: 4px;
}
.price-num small { font-size: 16px; font-weight: 500; color: var(--muted); }
.price-features { list-style: none; margin-top: 24px; flex: 1; }
.price-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--body);
  padding: 6px 0;
  line-height: 1.6;
}
.price-features li::before {
  content: '✓';
  color: var(--primary-600);
  font-weight: 700;
  flex-shrink: 0;
}
.price-card .btn-primary,
.price-card .btn-outline {
  margin-top: 28px;
  width: 100%;
}

.price-card.price-featured {
  background: var(--dark);
  border-color: var(--dark);
  position: relative;
  overflow: hidden;
}
.price-card.price-featured::before {
  content: '推荐';
  position: absolute;
  top: 20px;
  right: -32px;
  background: var(--accent);
  color: var(--heading);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 40px;
  transform: rotate(45deg);
}
.price-card.price-featured .price-name,
.price-card.price-featured .price-num {
  color: #fff;
}
.price-card.price-featured .price-desc { color: rgba(255,255,255,0.6); }
.price-card.price-featured .price-features li { color: rgba(255,255,255,0.8); }
.price-card.price-featured .price-features li::before { color: var(--accent); }
.price-card.price-featured .btn-primary { background: var(--accent); color: var(--heading); }
.price-card.price-featured .btn-primary:hover { background: #c8942f; color: var(--heading); }

.price-card.price-custom {
  background: linear-gradient(145deg, rgba(11,107,90,0.05), rgba(217,164,65,0.05));
  border: 1px dashed var(--primary-200);
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
}
.price-card.price-custom .price-custom-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-600);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}
.price-card.price-custom h3 { font-size: 22px; margin-bottom: 12px; }
.price-card.price-custom p { color: var(--muted); font-size: 14px; line-height: 1.8; margin-bottom: 24px; }

/* 资讯区 */
.news-section { background: var(--bg); position: relative; }

.news-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
}
.news-search {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0 18px;
  height: 44px;
  transition: all var(--transition);
}
.news-search:focus-within {
  border-color: var(--primary-600);
  box-shadow: 0 0 0 4px rgba(11,107,90,0.12);
}
.news-search svg { width: 18px; height: 18px; color: var(--muted); flex-shrink: 0; }
.news-search input {
  border: none;
  outline: none;
  background: transparent;
  padding: 0 10px;
  font-size: 14px;
  font-family: var(--font-cn);
  color: var(--body);
  width: 220px;
}
.news-search input::placeholder { color: var(--muted); }

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.news-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  color: var(--body);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  color: var(--body);
}
.news-thumb {
  overflow: hidden;
  height: 180px;
  background: var(--primary-100);
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-thumb img { transform: scale(1.03); }
.news-tag {
  display: inline-block;
  background: var(--primary-100);
  color: var(--primary-600);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin: 20px 24px 0;
}
.news-card h3 {
  font-size: 18px;
  margin: 12px 24px 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.news-card:hover h3 { color: var(--primary-600); }
.news-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0 24px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px 20px;
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
  border-top: 1px solid var(--border);
}
.read-more {
  font-weight: 600;
  color: var(--primary-600);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}
.news-card:hover .read-more { gap: 8px; }

.news-empty {
  grid-column: 1 / -1;
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.empty-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary-600);
}
.news-empty p { font-size: 16px; font-weight: 600; color: var(--heading); margin-bottom: 4px; }
.news-empty span { font-size: 14px; color: var(--muted); }

/* FAQ 区 */
.faq-section { background: #fff; }

.faq-wrap {
  display: grid;
  grid-template-columns: 0.35fr 0.65fr;
  gap: 48px;
}
.faq-intro { position: sticky; top: 100px; align-self: start; }
.faq-intro h2 { margin-bottom: 12px; }
.faq-intro p { color: var(--muted); font-size: 15px; line-height: 1.8; margin-bottom: 24px; }
.faq-intro .btn-outline { margin-top: 8px; }

.faq-list { display: flex; flex-direction: column; gap: 16px; }

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.active {
  border-color: var(--primary-200);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--heading);
  font-family: var(--font-cn);
  text-align: left;
  transition: all var(--transition);
}
.faq-toggle:hover { color: var(--primary-600); }
.faq-toggle .faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-toggle .faq-q::before {
  content: 'Q';
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-600);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-arrow {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  font-size: 14px;
  color: var(--muted);
}
.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
}
.faq-answer-inner {
  padding: 0 24px 24px 62px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body);
}

/* CTA 区 */
.cta-section {
  background: var(--dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(217,164,65,0.1);
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: 40%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(11,107,90,0.4);
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-content h2 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 16px; }
.cta-content p { color: rgba(255,255,255,0.7); font-size: 16px; margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-content .btn-primary { background: var(--accent); color: var(--heading); }
.cta-content .btn-primary:hover { background: #c8942f; color: var(--heading); }
.cta-content .btn-outline { border-color: rgba(255,255,255,0.5); color: #fff; }
.cta-content .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  border-top: 4px solid var(--accent);
  padding: 72px 0 32px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.9fr 1.1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { color: rgba(255,255,255,0.6); line-height: 1.8; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-col ul li { padding: 6px 0; }
.footer-col a { color: rgba(255,255,255,0.6); transition: all var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-subscribe { display: flex; gap: 8px; margin-top: 12px; }
.footer-subscribe input {
  flex: 1;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  padding: 0 16px;
  color: #fff;
  font-size: 14px;
  font-family: var(--font-cn);
  outline: none;
  transition: border-color var(--transition);
}
.footer-subscribe input:focus {
  border-color: var(--accent);
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.4); }
.footer-subscribe button {
  height: 44px;
  background: var(--accent);
  color: var(--heading);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 18px;
  font-weight: 600;
  font-size: 14px;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all var(--transition);
}
.footer-subscribe button:hover { background: #c8942f; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
}

/* 浮动 CTA */
.floating-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-cn);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.4s ease;
}
.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.floating-cta:hover {
  background: #095246;
  color: #fff;
  transform: translateY(-2px);
}

/* 响应式 */
@media (max-width: 1200px) {
  .hero-inner { gap: 32px; }
  .hero h1 { font-size: 36px; }
}

@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
  }
  .main-nav {
    position: fixed;
    top: 96px;
    left: 24px;
    right: 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    display: none;
    z-index: 100;
  }
  .main-nav.open { display: flex; }
  .nav-link {
    padding: 14px 20px;
    justify-content: center;
    border-radius: var(--radius-md);
  }
  .nav-cta { display: none; }
  .hero-inner { flex-direction: column; }
  .hero-right { display: none; }
  .hero { padding: 90px 0 80px; }
  .hero-sub { max-width: 100%; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .features-grid .feature-card:last-child { grid-column: 1 / -1; }
  .process-wrap { grid-template-columns: 1fr; gap: 40px; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .price-card.price-custom { grid-column: 1 / -1; }
  .faq-wrap { grid-template-columns: 1fr; gap: 32px; }
  .faq-intro { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .container { padding: 0 16px; }
  .nav-panel { height: 64px; padding: 0 16px 0 20px; }
  .logo-text { font-size: 16px; }
  .hero { padding: 72px 0 56px; margin-top: 0; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 16px; }
  .stats-row { flex-direction: column; gap: 16px; }
  .stat-item { border-left: none; padding-left: 0; padding-top: 16px; border-top: 1px solid var(--border); }
  .stat-item:first-child { border-top: none; padding-top: 0; }
  .stat-item strong { font-size: 26px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid .feature-card:last-child { grid-column: 1; }
  .feature-card { padding: 28px 24px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .testimonials-grid .t-card:nth-child(even) { transform: none; }
  .testimonials-grid .t-card:nth-child(even):hover { transform: translateY(-4px); }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card.price-custom { grid-column: 1; }
  .news-grid { grid-template-columns: 1fr; }
  .news-toolbar { flex-direction: column; align-items: stretch; }
  .news-search input { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .floating-cta {
    left: 16px;
    right: 16px;
    bottom: 16px;
    justify-content: center;
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
}

@media (max-width: 520px) {
  .process-step { gap: 16px; }
  .step-num { width: 46px; height: 46px; font-size: 14px; }
  .process-step:not(:last-child)::after { left: 23px; }
  .price-card { padding: 28px 20px; }
  .faq-answer-inner { padding-left: 24px; }
}

/* 打印样式 */
@media print {
  .site-header, .floating-cta, .site-footer, .cta-section, .news-section { display: none !important; }
  body { background: #fff; }
  .container { max-width: 100%; }
}

/* roulang page: category1 */
:root {
  --primary-600: #0B6B5A;
  --primary-500: #0E7A67;
  --primary-400: #13836F;
  --primary-200: #BFDED6;
  --primary-100: #E4F2EE;
  --primary-50: #F1F8F6;
  --accent: #D9A441;
  --accent-hover: #C4923A;
  --accent-light: #FBF3E0;
  --bg: #F8FAF9;
  --card-bg: #FFFFFF;
  --dark-bg: #0E3E35;
  --dark-bg-2: #123E37;
  --text-title: #10241F;
  --text-body: #2E3D38;
  --text-muted: #6B7C76;
  --border: #E3EEE9;
  --success: #1F9D6B;
  --warning: #D9A441;
  --danger: #D9534F;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-card: 0 8px 24px rgba(16,36,31,0.06);
  --shadow-hover: 0 16px 40px rgba(16,36,31,0.12);
  --shadow-footer: 0 12px 32px rgba(0,0,0,0.18);
  --transition: 0.25s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
input:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 3px solid rgba(11,107,90,0.35);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Button System ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition);
  box-shadow: 0 4px 14px rgba(11,107,90,0.18);
}
.btn-primary:hover {
  background: #095246;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(11,107,90,0.24);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--primary-600);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 26px;
  border-radius: var(--radius-md);
  border: 2px solid var(--primary-600);
  transition: all var(--transition);
}
.btn-outline:hover {
  background: var(--primary-50);
  border-color: #095246;
  color: #095246;
  transform: translateY(-1px);
}
.btn-outline:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-600);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.btn-ghost:hover { background: var(--primary-50); color: #095246; }

/* ===== Header / Nav Panel ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0 10px;
  background: transparent;
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 0 24px;
  height: 68px;
  transition: box-shadow var(--transition);
}

.site-header.scrolled .nav-panel {
  box-shadow: 0 10px 30px rgba(16,36,31,0.1);
}

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

.logo-mark {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-600);
  border-radius: 12px;
  color: #fff;
  transition: transform var(--transition);
}

.logo:hover .logo-mark { transform: rotate(-4deg) scale(1.05); }

.logo-mark svg { width: 22px; height: 22px; }

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav .nav-link {
  display: inline-block;
  padding: 7px 18px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.main-nav .nav-link:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  border-color: var(--primary-200);
}

.main-nav .nav-link.active {
  background: var(--primary-600);
  color: #fff;
  border-color: var(--primary-600);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(11,107,90,0.22);
}

.nav-cta {
  padding: 10px 24px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px 12px;
  background: var(--primary-50);
  border-radius: 10px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--primary-600);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  background-color: var(--primary-100);
  padding: 68px 0 56px;
  margin: 0 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255,255,255,0.94) 0%, rgba(255,255,255,0.86) 42%, rgba(255,255,255,0.52) 100%);
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.crumbs {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.crumbs a { color: var(--primary-600); font-weight: 500; }
.crumbs a:hover { color: var(--primary-400); text-decoration: underline; }
.crumbs .current { color: var(--text-body); font-weight: 600; }

.page-banner h1 {
  font-size: clamp(30px, 4.6vw, 44px);
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.3;
  margin-bottom: 14px;
  max-width: 680px;
}

.page-banner h1 span { color: var(--primary-600); }

.page-banner .banner-desc {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.8;
  max-width: 560px;
}

/* ===== Category Layout ===== */
.category-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 48px;
  padding: 80px 24px 0;
}

.toc {
  position: sticky;
  top: 110px;
  align-self: start;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-card);
}

.toc-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.toc-list li + li { margin-top: 4px; }

.toc-list a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-body);
  border-left: 3px solid transparent;
  transition: all var(--transition);
}

.toc-list a:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  border-left-color: var(--primary-200);
}

.toc-list a.active {
  background: var(--primary-50);
  color: var(--primary-600);
  border-left-color: var(--primary-600);
  font-weight: 600;
}

.category-content {
  max-width: 100%;
  min-width: 0;
}

.content-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  box-shadow: var(--shadow-card);
  margin-bottom: 28px;
  scroll-margin-top: 120px;
}

.content-section:last-child { margin-bottom: 0; }

.content-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.content-section h2 .section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--primary-600);
  color: #fff;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-num);
  flex-shrink: 0;
}

.content-section .section-intro {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.content-section p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-body);
  margin-bottom: 16px;
}

.content-section p:last-child { margin-bottom: 0; }

.steps-list {
  margin-top: 12px;
  counter-reset: step;
}

.steps-list li {
  position: relative;
  padding: 16px 20px 16px 68px;
  background: var(--primary-50);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  border: 1px solid var(--primary-100);
}

.steps-list li:last-child { margin-bottom: 0; }

.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 36px;
  height: 36px;
  background: var(--primary-600);
  color: #fff;
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.steps-list li strong {
  display: block;
  font-size: 15px;
  color: var(--text-title);
  margin-bottom: 4px;
}

.steps-list li span {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 12px;
}

.security-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
}

.security-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.security-card .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--accent);
}

.security-card .card-icon svg { width: 22px; height: 22px; }

.security-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
}

.security-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.7;
}

.tip-block {
  display: flex;
  gap: 14px;
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 18px 22px;
  margin-top: 20px;
}

.tip-block svg { width: 22px; height: 22px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }

.tip-block p {
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 0;
}

.problem-list {
  margin-top: 8px;
}

.problem-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.problem-list li:last-child { border-bottom: none; }

.problem-list li h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-title);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.problem-list li h3::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-500);
  flex-shrink: 0;
}

.problem-list li p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
  padding-left: 16px;
}

.enterprise-box {
  background: var(--dark-bg);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  color: #fff;
  margin-top: 12px;
}

.enterprise-box h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.enterprise-box p {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  margin-bottom: 16px;
}

.enterprise-box .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-title);
}

.enterprise-box .btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== Related Cards ===== */
.related-section {
  padding: 80px 24px 0;
}

.related-section .section-header {
  text-align: center;
  margin-bottom: 40px;
}

.related-section .section-header .eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-600);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.related-section .section-header h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  color: var(--text-title);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 860px;
  margin: 0 auto;
}

.related-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

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

.related-card .card-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.related-card:hover .card-img img { transform: scale(1.04); }

.related-card .card-body {
  padding: 22px 24px 26px;
}

.related-card .card-body .tag {
  display: inline-block;
  background: var(--primary-50);
  color: var(--primary-600);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.related-card .card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 10px;
  line-height: 1.5;
}

.related-card .card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.related-card .card-link:hover { gap: 10px; color: #095246; }

/* ===== FAQ Section ===== */
.faq-section {
  padding: 80px 24px;
}

.faq-section .faq-wrap {
  display: grid;
  grid-template-columns: 30% 70%;
  gap: 48px;
  max-width: 1020px;
  margin: 0 auto;
}

.faq-title-block .eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-600);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.faq-title-block h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 14px;
  line-height: 1.4;
}

.faq-title-block p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item.active {
  border-left: 4px solid var(--primary-600);
  box-shadow: var(--shadow-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-title);
  background: transparent;
  transition: background var(--transition);
}

.faq-question:hover { background: var(--primary-50); }

.faq-question .q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--primary-100);
  color: var(--primary-600);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-question .arrow {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-muted);
}

.faq-item.active .arrow { transform: rotate(180deg); color: var(--primary-600); }

.faq-answer {
  display: none;
  padding: 0 24px 22px 58px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.85;
}

.faq-item.active .faq-answer { display: block; animation: fadeIn 0.25s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 0 24px 90px;
}

.cta-box {
  position: relative;
  background: var(--dark-bg);
  border-radius: var(--radius-lg);
  padding: 52px 56px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-footer);
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.15;
}

.cta-box .cta-inner {
  position: relative;
  z-index: 1;
}

.cta-box h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  color: #fff;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-box p {
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

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

.cta-box .btn-primary {
  background: var(--accent);
  color: var(--text-title);
  border-color: var(--accent);
}

.cta-box .btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.cta-box .btn-outline {
  border-color: rgba(255,255,255,0.85);
  color: #fff;
}

.cta-box .btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-bg);
  color: #fff;
  border-top: 4px solid var(--accent);
}

.site-footer .container {
  padding-top: 64px;
  padding-bottom: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 14px;
  color: #fff;
}

.footer-brand .logo .logo-text { color: #fff; }

.footer-brand p {
  color: rgba(255,255,255,0.62);
  font-size: 13px;
  line-height: 1.8;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  letter-spacing: 0.03em;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a {
  color: rgba(255,255,255,0.65);
  font-size: 13px;
  transition: all var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.footer-subscribe input {
  flex: 1;
  min-width: 0;
  height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}

.footer-subscribe input::placeholder { color: rgba(255,255,255,0.45); }

.footer-subscribe input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(217,164,65,0.2);
}

.footer-subscribe button {
  height: 42px;
  padding: 0 20px;
  background: var(--accent);
  color: var(--text-title);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--transition);
}

.footer-subscribe button:hover {
  background: var(--accent-hover);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}

.footer-bottom span { display: inline-block; }

/* ===== Floating CTA ===== */
.float-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  padding: 13px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 26px rgba(11,107,90,0.34);
  opacity: 0;
  transform: translateY(16px);
  visibility: hidden;
  transition: all var(--transition);
}

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

.float-cta:hover {
  background: #095246;
  transform: translateY(-2px);
  color: #fff;
}

.float-cta svg { width: 16px; height: 16px; }

/* ===== Mobile TOC Tabs ===== */
.mobile-toc {
  display: none;
  padding: 40px 0 0;
}

.mobile-toc .toc-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.mobile-toc .toc-tabs::-webkit-scrollbar { height: 4px; }
.mobile-toc .toc-tabs::-webkit-scrollbar-thumb { background: var(--primary-200); border-radius: 4px; }

.mobile-toc .toc-tabs a {
  flex-shrink: 0;
  padding: 8px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-body);
  transition: all var(--transition);
}

.mobile-toc .toc-tabs a:hover,
.mobile-toc .toc-tabs a.active {
  background: var(--primary-600);
  color: #fff;
  border-color: var(--primary-600);
}

/* ===== Responsive ===== */
@media (max-width: 1090px) {
  .main-nav .nav-link { padding: 7px 13px; font-size: 13px; }
  .nav-cta { padding: 9px 18px; font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 991px) {
  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: 100px;
    left: 24px;
    right: 24px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-hover);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    border: 1px solid var(--border);
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .main-nav .nav-link {
    padding: 12px 18px;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }

  .main-nav .nav-link.active {
    background: var(--primary-600);
    color: #fff;
  }

  .category-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .toc { display: none; }
  .mobile-toc { display: block; }

  .faq-section .faq-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .faq-title-block p { max-width: none; }
}

@media (max-width: 767px) {
  .container { padding-left: 16px; padding-right: 16px; }

  .nav-panel { height: 62px; padding: 0 16px; }
  .logo-text { font-size: 16px; }
  .logo-mark { width: 34px; height: 34px; }
  .nav-cta { padding: 8px 16px; font-size: 13px; }

  .page-banner {
    margin: 0 12px;
    padding: 44px 0 38px;
  }

  .page-banner h1 { font-size: 28px; }
  .page-banner .banner-desc { font-size: 14px; }

  .category-layout { padding: 36px 12px 0; }
  .content-section { padding: 26px 20px; }
  .content-section h2 { font-size: 20px; gap: 8px; }

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

  .related-grid { grid-template-columns: 1fr; gap: 20px; }

  .related-section { padding: 56px 16px 0; }

  .faq-section { padding: 56px 16px; }

  .faq-question { flex-wrap: wrap; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 18px 46px; }

  .cta-section { padding: 0 16px 70px; }
  .cta-box { padding: 40px 24px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer .container { padding-top: 48px; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }

  .float-cta {
    right: 12px;
    bottom: 12px;
    left: 12px;
    justify-content: center;
    border-radius: var(--radius-md);
    width: auto;
  }

  .mobile-toc { padding: 32px 12px 0; }
}

@media (max-width: 420px) {
  .logo-text { font-size: 15px; }
  .nav-cta { display: none; }
  .nav-panel { justify-content: flex-start; gap: 12px; }
  .main-nav { top: 90px; left: 12px; right: 12px; }
  .steps-list li { padding: 14px 16px 14px 58px; }
  .steps-list li::before { width: 30px; height: 30px; left: 14px; font-size: 14px; }
}

/* ===== Print ===== */
@media print {
  .site-header, .site-footer, .float-cta, .mobile-toc, .toc, .cta-section { display: none !important; }
  .category-layout { display: block; }
  .content-section { box-shadow: none; border: 1px solid #ccc; }
  body { background: #fff; }
}

/* roulang page: article */
:root {
  --primary-600: #0B6B5A;
  --primary-500: #12836E;
  --primary-400: #2E9B82;
  --primary-300: #6BBFAA;
  --primary-200: #D0EAE3;
  --primary-100: #E8F5F1;
  --primary-hover: #095246;
  --accent: #D9A441;
  --accent-hover: #C08E32;
  --bg: #F8FAF9;
  --card: #FFFFFF;
  --dark: #0E3E35;
  --dark-light: #145247;
  --text: #10241F;
  --text-body: #2E3D38;
  --text-muted: #6B7C76;
  --border: #E3EEE9;
  --success: #1F9D6B;
  --warning: #D9A441;
  --error: #D9534F;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-card: 0 8px 24px rgba(16,36,31,0.06);
  --shadow-hover: 0 16px 40px rgba(16,36,31,0.12);
  --shadow-dark: 0 12px 32px rgba(0,0,0,0.18);
  --transition: 0.25s ease;
  --container: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 780px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

:focus-visible {
  outline: 4px solid rgba(11,107,90,0.2);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Header / Nav ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0 6px;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(16,36,31,0.08);
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(16,36,31,0.06);
  padding: 12px 24px;
  min-height: 68px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.nav-panel:hover {
  box-shadow: 0 12px 32px rgba(16,36,31,0.1);
}

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

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary-600);
  color: #fff;
  transition: background var(--transition), transform var(--transition);
}

.logo:hover .logo-mark {
  background: var(--primary-hover);
  transform: scale(1.04);
}

.logo-mark svg {
  width: 22px;
  height: 22px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  justify-content: center;
  padding: 0 16px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--primary-100);
  color: var(--primary-600);
}

.nav-link.active {
  background: var(--primary-600);
  color: #fff;
  box-shadow: 0 4px 14px rgba(11,107,90,0.28);
}

.nav-link.active:hover {
  background: var(--primary-hover);
  color: #fff;
}

.nav-cta {
  flex-shrink: 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(11,107,90,0.22);
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11,107,90,0.3);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--primary-600);
  padding: 11px 26px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: 1.5px solid var(--primary-600);
  transition: all var(--transition);
  cursor: pointer;
}

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

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-600);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.btn-ghost:hover {
  background: var(--primary-100);
  color: var(--primary-hover);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--primary-100);
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--primary-200);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--primary-600);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Article Hero ── */
.article-hero {
  position: relative;
  padding: 72px 0 56px;
  overflow: hidden;
  border-radius: 0 0 40px 40px;
}

.article-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  z-index: 0;
  animation: heroFadeIn 0.8s ease;
}

.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,62,53,0.9) 0%, rgba(14,62,53,0.72) 55%, rgba(11,107,90,0.6) 100%);
  z-index: 1;
}

@keyframes heroFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.article-hero .container {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 24px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-full);
  backdrop-filter: blur(6px);
  display: inline-flex;
  border: 1px solid rgba(255,255,255,0.18);
}

.breadcrumb a {
  color: #fff;
  font-weight: 500;
  transition: opacity var(--transition);
}

.breadcrumb a:hover {
  opacity: 0.8;
  color: #fff;
}

.breadcrumb .sep {
  color: rgba(255,255,255,0.4);
}

.breadcrumb .current {
  color: rgba(255,255,255,0.85);
  max-width: 360px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-hero-title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  max-width: 720px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  margin-top: 8px;
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta .meta-item + .meta-item::before {
  content: "·";
  margin-right: 4px;
  color: rgba(255,255,255,0.4);
}

.article-meta .meta-icon {
  width: 15px;
  height: 15px;
  opacity: 0.6;
}

/* ── Article Body ── */
.article-wrap {
  padding: 56px 0 24px;
}

.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: clamp(28px, 4vw, 56px);
  max-width: 820px;
  margin: 0 auto;
  transition: box-shadow var(--transition);
}

.article-card:hover {
  box-shadow: var(--shadow-hover);
}

.article-body {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text-body);
}

.article-body p {
  margin-bottom: 1.6em;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 1.8em 0 0.8em;
  line-height: 1.4;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-100);
}

.article-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 1.6em 0 0.7em;
  line-height: 1.4;
}

.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 1.4em 0 0.6em;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.6em;
  padding-left: 1.4em;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 0.5em;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 0.5em;
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 18px 24px;
  background: var(--primary-100);
  border-left: 4px solid var(--primary-600);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-body);
  font-style: normal;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body code {
  font-family: "SF Mono", "Consolas", "Courier New", monospace;
  background: #EFF5F2;
  color: var(--primary-hover);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 0.9em;
}

.article-body pre {
  background: #10241F;
  color: #D9E8E2;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 1.8em 0;
  font-size: 14px;
  line-height: 1.7;
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-body img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin: 1.8em 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 15px;
}

.article-body table th,
.article-body table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}

.article-body table th {
  background: var(--primary-100);
  font-weight: 600;
  color: var(--text);
}

.article-body table tr:nth-child(even) {
  background: #FAFCFB;
}

.article-body a {
  color: var(--primary-600);
  border-bottom: 1px solid rgba(11,107,90,0.3);
  padding-bottom: 1px;
  transition: border-color var(--transition);
}

.article-body a:hover {
  border-bottom-color: var(--primary-600);
  color: var(--primary-hover);
}

/* Empty state */
.article-empty {
  text-align: center;
  padding: 60px 24px;
}

.empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-600);
  font-size: 32px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.article-empty h2 {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 10px;
}

.article-empty p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ── Article Pager ── */
.article-pager {
  max-width: 820px;
  margin: 32px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pager-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.pager-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--primary-200);
}

.pager-card.pager-next {
  text-align: right;
}

.pager-label {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.pager-next .pager-label {
  justify-content: flex-end;
}

.pager-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.pager-card:hover .pager-title {
  color: var(--primary-600);
}

/* ── Related Section ── */
.related-section {
  padding: 72px 0 88px;
}

.section-header {
  text-align: center;
  margin-bottom: 44px;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-600);
  background: var(--primary-100);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.section-header h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 10px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}

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

.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--primary-200);
}

.related-thumb {
  position: relative;
  height: 170px;
  overflow: hidden;
  background: var(--primary-100);
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.04);
}

.related-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(16,36,31,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.related-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255,255,255,0.92);
  color: var(--primary-600);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

.related-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.related-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover .related-body h3 {
  color: var(--primary-600);
}

.related-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid #F0F5F2;
}

/* ── CTA Section ── */
.cta-section {
  background: var(--dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(11,107,90,0.28);
  top: -160px;
  right: -100px;
}

.cta-section::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(217,164,65,0.14);
  bottom: -100px;
  left: -60px;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.cta-inner p {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.cta-inner .btn-primary {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 6px 20px rgba(217,164,65,0.3);
}

.cta-inner .btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ── Footer ── */
.site-footer {
  background: var(--dark);
  border-top: 4px solid var(--primary-600);
  padding: 64px 0 28px;
  color: rgba(255,255,255,0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-brand .logo-mark {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.footer-subscribe input {
  flex: 1;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.16);
  color: #fff;
  padding: 0 14px;
  font-size: 14px;
  transition: border-color var(--transition), background var(--transition);
}

.footer-subscribe input::placeholder {
  color: rgba(255,255,255,0.4);
}

.footer-subscribe input:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,0.16);
}

.footer-subscribe button {
  height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--dark);
  font-weight: 600;
  font-size: 14px;
  transition: background var(--transition);
  white-space: nowrap;
}

.footer-subscribe button:hover {
  background: var(--accent-hover);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ── Floating CTA ── */
.float-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-600);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 8px 30px rgba(11,107,90,0.35);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: all 0.3s ease;
}

.float-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

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

.float-cta svg {
  width: 18px;
  height: 18px;
}

/* ── Responsive ── */
@media (max-width: 991px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    background: #fff;
    box-shadow: -8px 0 32px rgba(16,36,31,0.12);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 8px;
    padding: 100px 24px 24px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 98;
    border-radius: 24px 0 0 24px;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-panel {
    position: relative;
    z-index: 100;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 14px 18px;
    font-size: 16px;
  }

  .nav-cta {
    display: none;
  }

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

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

@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .container-narrow {
    padding-left: 16px;
    padding-right: 16px;
  }

  .nav-panel {
    padding: 10px 14px;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
  }

  .article-hero {
    padding: 48px 0 40px;
  }

  .breadcrumb {
    font-size: 13px;
    margin-bottom: 16px;
  }

  .breadcrumb .current {
    max-width: 180px;
  }

  .article-hero-title {
    font-size: 26px;
  }

  .article-meta {
    font-size: 13px;
    gap: 6px 10px;
  }

  .article-wrap {
    padding: 32px 0 16px;
  }

  .article-card {
    padding: 24px 20px;
    border-radius: var(--radius-md);
  }

  .article-body {
    font-size: 15.5px;
    line-height: 1.85;
  }

  .article-body h2 {
    font-size: 21px;
  }

  .article-body h3 {
    font-size: 17.5px;
  }

  .article-pager {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .pager-card.pager-next {
    text-align: left;
  }

  .pager-next .pager-label {
    justify-content: flex-start;
  }

  .related-section {
    padding: 48px 0 60px;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .related-thumb {
    height: 180px;
  }

  .cta-section {
    padding: 52px 0;
  }

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

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

  .float-cta {
    right: 16px;
    bottom: 16px;
    padding: 12px 20px;
    font-size: 14px;
  }

  .float-cta span {
    display: none;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 15px;
    letter-spacing: 0;
  }

  .nav-panel {
    min-height: 60px;
    gap: 8px;
  }

  .btn-primary {
    padding: 10px 20px;
    font-size: 14px;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .article-meta .meta-item + .meta-item::before {
    content: none;
    margin: 0;
  }

  .related-grid {
    gap: 16px;
  }
}

@media print {
  .site-header,
  .site-footer,
  .float-cta,
  .cta-section,
  .related-section,
  .article-pager {
    display: none !important;
  }

  .article-hero {
    border-radius: 0;
    padding: 24px 0;
    background: #fff !important;
  }

  .article-hero-overlay,
  .article-hero-bg {
    display: none;
  }

  .article-hero-title,
  .article-meta,
  .breadcrumb {
    color: var(--text);
  }

  .breadcrumb a {
    color: var(--primary-600);
  }

  .article-card {
    box-shadow: none;
    border: none;
    padding: 0;
  }

  .article-wrap {
    padding: 24px 0;
  }

  .article-body {
    font-size: 12pt;
  }
}

/* roulang page: category2 */
:root {
      --primary: #0B6B5A;
      --primary-dark: #095246;
      --primary-light: #E8F4F0;
      --primary-100: #D3EBE4;
      --accent: #D9A441;
      --accent-light: #FDF6E7;
      --bg: #F8FAF9;
      --card-bg: #FFFFFF;
      --dark: #0E3E35;
      --text: #10241F;
      --text-body: #2E3D38;
      --text-muted: #6B7C76;
      --border: #E3EEE9;
      --success: #1F9D6B;
      --warning: #D9A441;
      --danger: #D9534F;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 999px;
      --shadow-sm: 0 8px 24px rgba(16,36,31,0.06);
      --shadow-md: 0 16px 40px rgba(16,36,31,0.12);
      --shadow-dark: 0 12px 32px rgba(0,0,0,0.18);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
      --transition: 0.25s ease;
      --container: 1140px;
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-body);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
    }

    ul,
    ol {
      list-style: none;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      border: none;
      outline: none;
    }

    button {
      cursor: pointer;
      background: none;
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }

    ::selection {
      background: var(--primary);
      color: #fff;
    }

    :focus-visible {
      outline: 3px solid rgba(11,107,90,0.35);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--primary);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-md);
      border: 1.5px solid var(--primary);
      transition: all var(--transition);
      white-space: nowrap;
      letter-spacing: 0.02em;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(11,107,90,0.25);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--primary);
      font-size: 15px;
      font-weight: 600;
      padding: 11px 26px;
      border-radius: var(--radius-md);
      border: 1.5px solid var(--primary);
      transition: all var(--transition);
      white-space: nowrap;
    }
    .btn-outline:hover {
      background: rgba(11,107,90,0.08);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      color: var(--primary);
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: background var(--transition);
    }
    .btn-ghost:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 24px;
    }

    .nav-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      height: 68px;
      padding: 0 24px;
      gap: 12px;
    }

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

    .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #fff;
      border-radius: var(--radius-sm);
      flex-shrink: 0;
    }
    .logo-mark svg {
      width: 22px;
      height: 22px;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: 0.01em;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0 auto;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      color: var(--text-body);
      background: transparent;
      transition: all var(--transition);
      white-space: nowrap;
    }
    .nav-link:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .nav-link.active {
      background: var(--primary);
      color: #fff;
    }
    .nav-link.active:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    .nav-cta {
      flex-shrink: 0;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      transition: background var(--transition);
    }
    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: transform var(--transition), opacity var(--transition);
    }
    .nav-toggle:hover {
      background: var(--primary-100);
    }

    @media (max-width: 991px) {
      .site-header {
        top: 12px;
        padding: 0 16px;
      }
      .nav-panel {
        height: 60px;
        padding: 0 16px;
      }
      .main-nav {
        position: fixed;
        top: 84px;
        left: 16px;
        right: 16px;
        background: rgba(255,255,255,0.97);
        backdrop-filter: blur(14px);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        padding: 20px;
        gap: 12px;
        transform: translateY(-16px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1001;
        margin: 0;
      }
      .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }
      .nav-link {
        width: 100%;
        justify-content: center;
        padding: 12px;
        font-size: 15px;
      }
      .nav-cta {
        display: none;
      }
      .nav-toggle {
        display: flex;
      }
    }

    @media (max-width: 520px) {
      .nav-panel {
        padding: 0 14px;
      }
      .logo-text {
        font-size: 17px;
      }
      .logo-mark {
        width: 32px;
        height: 32px;
      }
      .logo-mark svg {
        width: 18px;
        height: 18px;
      }
    }

    /* ===== Page Banner ===== */
    .page-banner {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 76px 0 72px;
      border-radius: 0 0 var(--radius-lg) var(--radius-lg);
      margin: 12px 24px 0;
      overflow: hidden;
      min-height: 280px;
      display: flex;
      align-items: center;
    }
    .banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(255,255,255,0.9) 20%, rgba(255,255,255,0.65) 60%, rgba(255,255,255,0.4) 100%);
    }
    .banner-content {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .breadcrumb a {
      color: var(--primary);
      font-weight: 500;
    }
    .breadcrumb a:hover {
      text-decoration: underline;
    }
    .breadcrumb span {
      color: var(--text);
      font-weight: 600;
    }

    .banner-content h1 {
      font-family: var(--font-sans);
      font-size: clamp(30px, 4.2vw, 46px);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text);
      margin-bottom: 14px;
    }
    .banner-content h1 .highlight {
      color: var(--primary);
    }
    .banner-content p {
      font-size: 16px;
      color: var(--text-body);
      max-width: 640px;
      line-height: 1.7;
    }

    @media (max-width: 768px) {
      .page-banner {
        margin: 8px 12px 0;
        padding: 56px 0 48px;
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        min-height: 220px;
      }
      .banner-content h1 {
        font-size: 28px;
      }
      .banner-content p {
        font-size: 15px;
      }
    }

    /* ===== Category Layout ===== */
    .category-main {
      padding: 64px 0 40px;
    }

    .category-layout {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 40px;
      align-items: start;
    }

    .category-sidebar {
      position: sticky;
      top: 110px;
    }

    .sidebar-inner {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      box-shadow: var(--shadow-sm);
    }
    .sidebar-inner h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
      position: relative;
    }
    .sidebar-inner h3::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 32px;
      height: 3px;
      background: var(--accent);
      border-radius: 2px;
    }
    .sidebar-inner ul li {
      margin-bottom: 4px;
    }
    .sidebar-inner ul li a {
      display: block;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-body);
      font-weight: 500;
      transition: all var(--transition);
      border-left: 3px solid transparent;
    }
    .sidebar-inner ul li a:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-left-color: var(--primary);
    }

    .sidebar-cta {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      text-align: center;
    }
    .sidebar-cta p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .category-content {
      min-width: 0;
    }

    .content-section {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 28px;
      box-shadow: var(--shadow-sm);
    }
    .content-section > h2 {
      font-size: clamp(22px, 2.6vw, 30px);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 18px;
      position: relative;
      padding-left: 18px;
    }
    .content-section > h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 4px;
      background: var(--primary);
      border-radius: 2px;
    }
    .content-section > p {
      font-size: 15px;
      line-height: 1.85;
      color: var(--text-body);
      margin-bottom: 18px;
    }

    @media (max-width: 991px) {
      .category-layout {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .category-sidebar {
        position: static;
      }
      .sidebar-inner {
        padding: 16px;
      }
      .sidebar-inner h3 {
        margin-bottom: 12px;
        font-size: 15px;
      }
      .sidebar-inner ul {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
      }
      .sidebar-inner ul li {
        margin-bottom: 0;
        flex-shrink: 0;
      }
      .sidebar-inner ul li a {
        padding: 6px 14px;
        border-radius: var(--radius-full);
        border: 1px solid var(--border);
        white-space: nowrap;
        background: var(--bg);
        font-size: 13px;
      }
      .sidebar-inner ul li a:hover {
        border-color: var(--primary);
      }
      .sidebar-cta {
        display: none;
      }
      .content-section {
        padding: 28px 22px;
      }
    }

    @media (max-width: 520px) {
      .category-main {
        padding: 36px 0 24px;
      }
      .content-section {
        padding: 22px 16px;
        border-radius: var(--radius-md);
      }
      .content-section > h2 {
        font-size: 20px;
        padding-left: 14px;
      }
    }

    /* ===== Overview Grid ===== */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }
    .overview-item {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .overview-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .overview-item .ov-icon {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }
    .overview-item .ov-icon svg {
      width: 22px;
      height: 22px;
      stroke-width: 1.8;
    }
    .overview-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }
    .overview-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    @media (max-width: 768px) {
      .overview-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== Process Steps ===== */
    .process-list {
      margin-top: 20px;
    }
    .process-item {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 20px;
      padding: 20px 0;
      border-bottom: 1px dashed var(--border);
      position: relative;
    }
    .process-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .process-num {
      font-family: var(--font-num);
      font-size: 30px;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      border-radius: var(--radius-md);
      width: 52px;
      height: 52px;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
    }
    .process-info h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 6px;
    }
    .process-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    @media (max-width: 768px) {
      .process-item {
        grid-template-columns: 44px 1fr;
        gap: 14px;
        padding: 16px 0;
      }
      .process-num {
        font-size: 22px;
        width: 42px;
        height: 42px;
      }
    }

    /* ===== Standard Table ===== */
    .table-wrap {
      overflow-x: auto;
      margin-top: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
    }
    .standard-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 14px;
      min-width: 480px;
    }
    .standard-table th {
      background: var(--dark);
      color: #fff;
      font-weight: 600;
      text-align: left;
      padding: 14px 18px;
      white-space: nowrap;
    }
    .standard-table td {
      padding: 14px 18px;
      border-top: 1px solid var(--border);
      color: var(--text-body);
      line-height: 1.6;
    }
    .standard-table tr:nth-child(even) {
      background: var(--bg);
    }
    .standard-table tr:hover td {
      background: var(--primary-light);
    }

    /* ===== Security Grid ===== */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .security-card {
      display: flex;
      gap: 14px;
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--bg);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .security-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .security-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: var(--accent-light);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .security-icon svg {
      width: 20px;
      height: 20px;
      stroke-width: 1.8;
    }
    .security-card h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 4px;
    }
    .security-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    @media (max-width: 768px) {
      .security-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== FAQ ===== */
    .faq-list {
      margin-top: 20px;
    }
    .faq-item {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color var(--transition);
    }
    .faq-item details {
      padding: 0;
    }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      list-style: none;
      transition: background var(--transition);
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: "+";
      font-size: 22px;
      font-weight: 400;
      color: var(--primary);
      transition: transform var(--transition), color var(--transition);
      flex-shrink: 0;
    }
    .faq-item details[open] summary::after {
      transform: rotate(45deg);
      color: var(--accent);
    }
    .faq-item details[open] summary {
      background: var(--primary-light);
    }
    .faq-answer {
      padding: 0 22px 18px;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-body);
      border-top: 1px solid var(--border);
      padding-top: 14px;
      margin-top: 0;
      background: var(--bg);
    }
    .faq-item:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(11,107,90,0.15);
    }

    /* ===== Gallery ===== */
    .gallery-section {
      margin-top: 28px;
    }
    .gallery-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .gallery-grid figure {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .gallery-grid figure:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .gallery-grid img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .gallery-grid figure:hover img {
      transform: scale(1.03);
    }
    .gallery-grid figcaption {
      padding: 12px 16px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      background: var(--card-bg);
    }

    @media (max-width: 768px) {
      .gallery-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== Related ===== */
    .related-section {
      margin-top: 28px;
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .related-section > h2 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 20px;
    }
    .related-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .related-card {
      display: flex;
      flex-direction: column;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg);
      transition: all var(--transition);
    }
    .related-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
      border-color: var(--primary-100);
    }
    .related-card img {
      width: 100%;
      height: 140px;
      object-fit: cover;
    }
    .related-card .related-body {
      padding: 16px 18px 18px;
    }
    .related-cat {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      border-radius: var(--radius-full);
      padding: 3px 10px;
      margin-bottom: 10px;
    }
    .related-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 6px;
      line-height: 1.4;
    }
    .related-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    @media (max-width: 768px) {
      .related-grid {
        grid-template-columns: 1fr;
      }
      .related-section {
        padding: 22px 16px;
      }
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 60px 0 80px;
    }
    .cta-card {
      background: var(--dark);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-card::before {
      content: "";
      position: absolute;
      top: -60px;
      right: -60px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(217,164,65,0.12);
    }
    .cta-card::after {
      content: "";
      position: absolute;
      bottom: -40px;
      left: -40px;
      width: 120px;
      height: 120px;
      border-radius: 50%;
      background: rgba(255,255,255,0.04);
    }
    .cta-card h2 {
      font-size: clamp(24px, 3vw, 32px);
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      position: relative;
      z-index: 1;
    }
    .cta-card p {
      color: rgba(255,255,255,0.75);
      font-size: 15px;
      margin-bottom: 28px;
      max-width: 520px;
      margin-left: auto;
      margin-right: auto;
      position: relative;
      z-index: 1;
    }
    .cta-card .btn-primary {
      background: var(--accent);
      border-color: var(--accent);
      color: var(--dark);
      position: relative;
      z-index: 1;
    }
    .cta-card .btn-primary:hover {
      background: #c7952f;
      border-color: #c7952f;
    }

    @media (max-width: 768px) {
      .cta-section {
        padding: 40px 0 60px;
      }
      .cta-card {
        padding: 40px 24px;
        border-radius: var(--radius-md);
      }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      color: rgba(255,255,255,0.8);
      padding: 56px 0 28px;
      border-top: 4px solid var(--accent);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand .logo-text {
      color: #fff;
    }
    .footer-brand .logo-mark {
      background: var(--accent);
      color: var(--dark);
    }
    .footer-brand p {
      margin-top: 16px;
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255,255,255,0.6);
      max-width: 280px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: rgba(255,255,255,0.6);
      font-size: 14px;
      transition: color var(--transition), padding-left var(--transition);
    }
    .footer-col ul li a:hover {
      color: var(--accent);
      padding-left: 4px;
    }
    .footer-subscribe {
      display: flex;
      gap: 8px;
      margin-top: 14px;
    }
    .footer-subscribe input {
      flex: 1;
      height: 44px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255,255,255,0.2);
      background: rgba(255,255,255,0.08);
      color: #fff;
      padding: 0 14px;
      font-size: 14px;
      transition: border-color var(--transition);
    }
    .footer-subscribe input::placeholder {
      color: rgba(255,255,255,0.4);
    }
    .footer-subscribe input:focus {
      border-color: var(--accent);
    }
    .footer-subscribe button {
      height: 44px;
      padding: 0 20px;
      background: var(--accent);
      color: var(--dark);
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-sm);
      transition: background var(--transition);
      white-space: nowrap;
    }
    .footer-subscribe button:hover {
      background: #c7952f;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.12);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      font-size: 13px;
      color: rgba(255,255,255,0.4);
      flex-wrap: wrap;
    }

    @media (max-width: 991px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 768px) {
      .site-footer {
        padding: 40px 0 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-subscribe {
        flex-direction: column;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

    /* ===== Floating CTA ===== */
    .floating-cta {
      position: fixed;
      bottom: 28px;
      right: 28px;
      z-index: 999;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: var(--primary);
      color: #fff;
      padding: 14px 26px;
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 600;
      box-shadow: 0 8px 24px rgba(11,107,90,0.35);
      opacity: 0;
      transform: translateY(20px);
      pointer-events: none;
      transition: all 0.3s ease;
      border: none;
    }
    .floating-cta.visible {
      opacity: 1;
      transform: translateY(0);
      pointer-events: auto;
    }
    .floating-cta:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(11,107,90,0.4);
    }
    .floating-cta svg {
      width: 18px;
      height: 18px;
    }

    @media (max-width: 768px) {
      .floating-cta {
        bottom: 0;
        right: 0;
        left: 0;
        border-radius: 0;
        justify-content: center;
        padding: 18px;
        box-shadow: 0 -4px 20px rgba(16,36,31,0.15);
        width: 100%;
      }
      .floating-cta.visible {
        transform: translateY(0);
      }
    }

    /* ===== Misc ===== */
    .section-divider {
      height: 1px;
      background: var(--border);
      border: none;
      margin: 0;
    }

    @media print {
      .site-header,
      .floating-cta,
      .site-footer,
      .related-section,
      .cta-section {
        display: none !important;
      }
      .category-main {
        padding: 0;
      }
      .content-section {
        box-shadow: none;
        border: none;
        padding: 20px 0;
      }
      .category-layout {
        display: block;
      }
      .category-sidebar {
        display: none;
      }
    }