/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root {
  --primary: #0a1035;
  --primary-light: #172a5e;
  --primary-dark: #050b22;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --gold: #f5c04a;
  --bg: #f5f7fc;
  --white: #ffffff;
  --text-main: #1c2437;
  --text-weak: #74809c;
  --text-white: #edf1fc;
  --border: #e4e9f3;
  --radius-s: 10px;
  --radius-m: 16px;
  --radius-lg: 28px;
  --shadow-xs: 0 1px 4px rgba(10, 20, 55, 0.05);
  --shadow-sm: 0 2px 12px rgba(10, 20, 55, 0.06);
  --shadow-md: 0 6px 28px rgba(10, 20, 55, 0.09);
  --shadow-lg: 0 18px 50px rgba(10, 20, 55, 0.14);
  --tr: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ==================== 基础重置 ==================== */
*, *::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); color: var(--text-main); background: var(--bg); line-height: 1.7; font-size: 16px; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: var(--tr); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-main); }

/* ==================== 容器 ==================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad { padding: 88px 0; }

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.4;
  transition: var(--tr);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; box-shadow: 0 6px 24px rgba(59, 130, 246, 0.45); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--text-white);
  border-color: rgba(255, 255, 255, 0.6);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary-light);
}
.btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(10, 16, 53, 0.2); }
.btn-gold {
  background: var(--gold);
  color: var(--primary);
  border-color: var(--gold);
  box-shadow: 0 4px 18px rgba(245, 192, 74, 0.4);
  font-weight: 700;
}
.btn-gold:hover { background: #e2a93a; border-color: #e2a93a; color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245, 192, 74, 0.5); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* ==================== 标签 / 徽章 ==================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.tag-blue { background: rgba(59, 130, 246, 0.1); color: var(--accent); }
.tag-gold { background: rgba(245, 192, 74, 0.15); color: #b8860b; }
.tag-dark { background: rgba(10, 16, 53, 0.08); color: var(--primary); }
.tag-outline { border: 1px solid var(--border); color: var(--text-weak); background: #fff; }

/* ==================== 导航（Mega Menu） ==================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: var(--tr);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); background: rgba(255, 255, 255, 0.97); }
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  position: relative;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--primary);
  z-index: 2;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}
.logo-icon i { color: var(--gold); }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.nav-item {
  position: relative;
}
.nav-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--tr);
  white-space: nowrap;
}
.nav-item > a:hover { background: rgba(59, 130, 246, 0.08); color: var(--accent); }
.nav-item.active > a { background: rgba(59, 130, 246, 0.12); color: var(--accent); font-weight: 600; }
.nav-item.has-dropdown .dropdown-icon { font-size: 0.7rem; transition: transform 0.3s; }
.nav-item.has-dropdown:hover .dropdown-icon { transform: rotate(180deg); }

/* Mega Panel */
.mega-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: #fff;
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  min-width: 420px;
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: var(--tr);
  z-index: 200;
}
.nav-item.has-dropdown:hover .mega-panel { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.mega-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-weak);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.mega-col ul li { margin-bottom: 4px; }
.mega-col ul a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.92rem;
  color: var(--text-main);
}
.mega-col ul a:hover { background: rgba(59, 130, 246, 0.08); color: var(--accent); }
.mega-col ul a i { color: var(--accent); font-size: 0.85rem; width: 16px; }

.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-cta { margin-left: 10px; }
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.08);
  color: var(--primary);
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  transition: var(--tr);
  border: none;
}
.mobile-toggle:hover { background: rgba(59, 130, 246, 0.15); }

/* ==================== Hero ==================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
  background: var(--primary);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.45;
  z-index: 1;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(5, 11, 34, 0.92) 0%, rgba(10, 16, 53, 0.78) 50%, rgba(23, 42, 94, 0.6) 100%);
  z-index: 2;
}
.hero-content { position: relative; z-index: 3; text-align: center; color: var(--text-white); width: 100%; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-white);
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.hero-badge i { color: var(--gold); }
.hero-section h1 {
  font-size: 3.6rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(237, 241, 252, 0.85);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.6;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 44px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.hero-stat {
  padding: 0 40px;
  text-align: center;
  position: relative;
}
.hero-stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 52px;
  background: rgba(255, 255, 255, 0.15);
}
.stat-num {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.2;
}
.stat-label {
  display: block;
  font-size: 0.85rem;
  color: rgba(237, 241, 252, 0.7);
  margin-top: 6px;
  letter-spacing: 0.05em;
}

/* ==================== 数据指标区 ==================== */
.stats-section { padding: 80px 0 40px; }
.stat-card {
  background: var(--white);
  border-radius: var(--radius-m);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--tr);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  opacity: 0;
  transition: var(--tr);
}
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.stat-card:hover::before { opacity: 1; }
.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(59, 130, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent);
  margin: 0 auto 18px;
}
.stat-number { font-size: 2rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-desc { font-size: 0.9rem; color: var(--text-weak); margin-top: 6px; }

/* ==================== 核心说明 ==================== */
.about-section { padding: 72px 0; }
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.section-title { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; color: var(--primary); }
.section-desc { color: var(--text-weak); max-width: 600px; margin: 0 auto 48px; font-size: 1.05rem; line-height: 1.7; }
.about-section .section-desc { margin: 0 0 24px; }
.about-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  object-fit: cover;
  min-height: 340px;
}
.about-content { padding: 20px 0; }
.about-content h2 { font-size: 2rem; font-weight: 800; color: var(--primary); margin: 12px 0 20px; line-height: 1.3; }
.about-content p { color: var(--text-weak); font-size: 1.02rem; line-height: 1.8; margin-bottom: 24px; }
.check-list { margin: 0 0 28px; padding: 0; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 0.98rem;
  color: var(--text-main);
  border-bottom: 1px dashed var(--border);
}
.check-list li:last-child { border-bottom: none; }
.check-list li i { color: var(--accent); font-size: 1.1rem; margin-top: 3px; }
.check-list li span { font-weight: 500; }

/* ==================== 分类入口 ==================== */
.category-section { background: var(--white); padding: 88px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .section-tag { margin-bottom: 12px; }
.section-head h2 { font-size: 2.2rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.section-head p { color: var(--text-weak); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.category-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  transition: var(--tr);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-card img { width: 100%; height: 220px; object-fit: cover; }
.category-body { padding: 32px 28px; flex: 1; display: flex; flex-direction: column; }
.category-num {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-weak);
  margin-bottom: 8px;
}
.category-body h3 { font-size: 1.35rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.category-body p { color: var(--text-weak); font-size: 0.95rem; line-height: 1.7; margin-bottom: 18px; }
.category-links { margin: 0 0 20px; padding: 0; }
.category-links li { margin-bottom: 2px; }
.category-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--text-main);
}
.category-links a:hover { color: var(--accent); padding-left: 4px; }
.category-links a i { color: var(--accent); font-size: 0.8rem; }
.category-body .btn { margin-top: auto; align-self: flex-start; }

/* ==================== 最新资讯 ==================== */
.news-section { padding: 88px 0; background: var(--bg); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.news-card {
  background: var(--white);
  border-radius: var(--radius-m);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--tr);
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.news-cat {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}
.news-date { font-size: 0.78rem; color: var(--text-weak); display: flex; align-items: center; gap: 6px; }
.news-date i { font-size: 0.72rem; }
.news-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.news-card h3 a { color: var(--text-main); }
.news-card h3 a:hover { color: var(--accent); }
.news-card p { color: var(--text-weak); font-size: 0.9rem; line-height: 1.65; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}
.news-more:hover { gap: 12px; color: var(--accent-hover); }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--white);
  border-radius: var(--radius-m);
  border: 1px dashed var(--border);
  color: var(--text-weak);
}
.news-empty i { font-size: 2.5rem; display: block; margin-bottom: 16px; color: var(--border); }
.news-empty p { font-size: 1rem; }

/* ==================== 流程步骤 ==================== */
.steps-section { padding: 88px 0; background: var(--primary); position: relative; overflow: hidden; }
.steps-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.15);
  filter: blur(80px);
}
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255, 255, 255, 0.7); }
.step-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-m);
  padding: 40px 28px;
  text-align: center;
  transition: var(--tr);
  position: relative;
  height: 100%;
  backdrop-filter: blur(8px);
}
.step-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-6px); border-color: rgba(59, 130, 246, 0.4); }
.step-num {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 3.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.08);
  line-height: 1;
}
.step-icon {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #60a5fa);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  margin: 0 auto 22px;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}
.step-card h3 { color: #fff; font-size: 1.2rem; margin-bottom: 10px; }
.step-card p { color: rgba(237, 241, 252, 0.7); font-size: 0.92rem; line-height: 1.7; }

/* ==================== FAQ ==================== */
.faq-section { padding: 88px 0; background: var(--bg); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-m);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  box-shadow: var(--shadow-xs);
  transition: var(--tr);
  overflow: hidden;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: #cbd5e1; }
.faq-item.active { box-shadow: var(--shadow-md); border-color: var(--accent); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  background: transparent;
  transition: var(--tr);
}
.faq-question:hover { color: var(--accent); }
.faq-question i { color: var(--accent); font-size: 0.8rem; transition: transform 0.3s; flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p {
  padding: 0 28px 22px;
  color: var(--text-weak);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ==================== CTA ==================== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  color: #fff;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5, 11, 34, 0.92), rgba(10, 16, 53, 0.8));
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.4rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 1.1rem; color: rgba(255, 255, 255, 0.8); margin-bottom: 36px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ==================== 页脚 ==================== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 0;
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
  opacity: 0.5;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-logo .logo-icon { width: 36px; height: 36px; border-radius: 10px; }
.footer-about { font-size: 0.9rem; line-height: 1.8; color: rgba(255, 255, 255, 0.55); max-width: 320px; }
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: var(--tr);
}
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-col ul a i { color: var(--accent); font-size: 0.75rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ==================== 焦点 / 可见性 ==================== */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.5);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .section-pad { padding: 64px 0; }
  .hero-section h1 { font-size: 2.8rem; }
  .mega-panel { min-width: 360px; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
  .mobile-toggle { display: flex; }
  .nav-list {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    box-shadow: 0 10px 40px rgba(10, 16, 53, 0.12);
    border-bottom: 1px solid var(--border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--tr);
    gap: 2px;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }
  .nav-list.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-item > a { padding: 14px 16px; font-size: 1rem; }
  .nav-item.has-dropdown .mega-panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 12px 16px;
    min-width: auto;
    display: none;
    background: var(--bg);
    border-radius: 12px;
  }
  .nav-item.has-dropdown.mega-open .mega-panel { display: block; }
  .nav-item.has-dropdown:hover .mega-panel { transform: none; opacity: 1; visibility: visible; }
  .mega-grid { grid-template-columns: 1fr; gap: 12px; }
  .nav-cta { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stat { padding: 0 24px; }
  .stat-num { font-size: 1.6rem; }
  .about-section .about-img { margin-bottom: 32px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section-pad { padding: 56px 0; }
  .hero-section { padding: 100px 0 60px; min-height: auto; }
  .hero-section h1 { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-stat { padding: 12px 18px; }
  .hero-stat::after { display: none; }
  .hero-stats { gap: 8px; }
  .section-title { font-size: 1.7rem; }
  .section-head h2 { font-size: 1.7rem; }
  .category-card img { height: 180px; }
  .news-grid { grid-template-columns: 1fr; }
  .step-card { padding: 28px 20px; }
  .cta-section h2 { font-size: 1.8rem; }
  .faq-question { padding: 18px 20px; font-size: 0.92rem; }
  .faq-answer p { padding: 0 20px 18px; }
  .tag { font-size: 0.75rem; }
  .btn { padding: 10px 20px; font-size: 0.88rem; }
  .btn-lg { padding: 14px 32px; font-size: 1rem; }
  .logo { font-size: 1rem; }
  .logo-icon { width: 34px; height: 34px; font-size: 0.85rem; }
  .footer-logo { font-size: 1rem; }
  .hero-stat:not(:last-child)::after { display: none; }
  .stat-num { font-size: 1.5rem; }
  .mega-panel { display: none; }
  .nav-item.has-dropdown.mega-open .mega-panel { display: block; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-section h1 { font-size: 1.7rem; }
  .hero-subtitle { font-size: 0.92rem; }
  .stat-number { font-size: 1.5rem; }
  .category-body { padding: 24px 20px; }
  .category-body h3 { font-size: 1.1rem; }
  .section-head h2 { font-size: 1.5rem; }
  .section-desc { font-size: 0.95rem; }
  .about-content h2 { font-size: 1.5rem; }
  .news-card { padding: 22px; }
  .faq-question { font-size: 0.88rem; padding: 16px 16px; }
  .faq-answer p { font-size: 0.88rem; }
  .cta-section { padding: 72px 0; }
  .cta-section h2 { font-size: 1.5rem; }
  .footer-bottom { font-size: 0.75rem; }
  .logo-icon { width: 30px; height: 30px; border-radius: 8px; }
  .main-nav { height: 64px; }
  .nav-list { top: 64px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0b1220;
            --text-dark: #1e293b;
            --text-gray: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.35;
            color: var(--text-dark);
            font-weight: 700;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 74px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #1d4ed8);
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            margin: 0;
            padding: 0;
            list-style: none;
            justify-content: center;
        }

        .nav-item {
            position: relative;
        }

        .nav-item>a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-gray);
            transition: var(--transition);
        }

        .nav-item>a:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.06);
        }

        .nav-item.active>a {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.08);
        }

        .nav-item.active>a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 99px;
            background: var(--primary);
        }

        .dropdown-icon {
            font-size: 0.7rem;
            margin-left: 2px;
            transition: var(--transition);
        }

        .has-dropdown:hover .dropdown-icon {
            transform: rotate(180deg);
        }

        /* Mega Menu */
        .mega-panel {
            display: block;
            visibility: hidden;
            opacity: 0;
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(226, 232, 240, 0.6);
            padding: 24px;
            min-width: 520px;
            z-index: 100;
            transition: all 0.25s ease;
        }

        .has-dropdown:hover .mega-panel {
            visibility: visible;
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .mega-col h4 {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--text-light);
            margin-bottom: 14px;
            font-weight: 700;
        }

        .mega-col ul li {
            margin-bottom: 4px;
        }

        .mega-col ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 10px;
            border-radius: 8px;
            font-size: 0.9rem;
            color: var(--text-gray);
            transition: var(--transition);
        }

        .mega-col ul li a:hover {
            background: var(--bg-light);
            color: var(--primary);
            transform: translateX(3px);
        }

        .mega-col ul li a i {
            color: var(--primary);
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        /* Nav Right */
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.92rem;
            padding: 10px 22px;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 10px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.28);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }

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

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg-light);
            color: var(--text-dark);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-color: var(--bg-dark);
            overflow: hidden;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.88) 0%, rgba(11, 18, 32, 0.65) 55%, rgba(37, 99, 235, 0.35) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 60px 0;
        }

        .banner-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 18px;
        }

        .banner-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            line-height: 1.8;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 22px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }

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

        .breadcrumb i {
            font-size: 0.65rem;
        }

        /* ===== Section 通用 ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }

        .section-dark .section-tag {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-light);
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .section-dark .section-head h2 {
            color: #fff;
        }

        .section-head p {
            color: var(--text-gray);
            font-size: 1rem;
            line-height: 1.7;
        }

        .section-dark .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== 登录方式卡片 ===== */
        .methods-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .method-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.25);
        }

        .method-card .card-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.03));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .method-card:hover .card-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            transform: scale(1.05);
        }

        .method-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .method-card p {
            color: var(--text-gray);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .card-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(245, 158, 11, 0.12);
            color: #b45309;
        }

        .card-badge.green {
            background: rgba(16, 185, 129, 0.1);
            color: #047857;
        }

        .card-badge.blue {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary-dark);
        }

        .method-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .method-card .card-link i {
            transition: transform 0.3s;
        }

        .method-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 登录流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-item {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            color: var(--text-gray);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* ===== 安全数据 ===== */
        .stats-section {
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            position: relative;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92), rgba(37, 99, 235, 0.55));
        }

        .stats-section .container {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-top: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
        }

        .stat-item .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.25);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-gray);
            font-size: 0.92rem;
            line-height: 1.8;
            border-top: 1px solid rgba(226, 232, 240, 0.5);
            margin-top: 0;
        }

        .faq-item .faq-answer p {
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.2), transparent 70%);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1120;
            color: rgba(255, 255, 255, 0.65);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.85rem;
            border-radius: 10px;
        }

        .footer-about {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
            transform: translateX(3px);
        }

        .footer-col ul li a i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .methods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                height: 64px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 100;
                gap: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-item>a {
                padding: 12px 14px;
                border-radius: 10px;
                width: 100%;
                justify-content: space-between;
            }
            .nav-item.active>a::after {
                display: none;
            }
            .mega-panel {
                position: static;
                visibility: visible;
                opacity: 1;
                transform: none;
                min-width: 0;
                box-shadow: none;
                border: none;
                padding: 8px 0 0 20px;
            }
            .mega-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .has-dropdown:hover .mega-panel {
                transform: none;
            }
            .nav-right {
                margin-left: auto;
            }
            .nav-cta .btn {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .page-banner {
                min-height: 280px;
            }
            .banner-content h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-btns {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 520px) {
            .methods-grid,
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .banner-content p {
                font-size: 0.95rem;
            }
            .nav-cta .btn {
                display: none;
            }
            .logo {
                font-size: 1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #3730a3;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --bg-body: #f4f6fc;
    --bg-white: #ffffff;
    --bg-dark: #0b1121;
    --bg-soft: #eef1f8;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    display: block;
    height: auto;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}
ul,
ol {
    list-style: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 80px 0;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.2;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(79, 70, 229, 0.4);
    color: #ffffff;
}
.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.6);
    color: #ffffff;
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #ffffff;
    color: #ffffff;
}
.btn-light {
    background: #ffffff;
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    color: var(--primary-dark);
}
.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
}
.btn-block {
    display: flex;
    width: 100%;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    background: var(--bg-soft);
    color: var(--primary);
}
.badge-accent {
    background: rgba(6, 182, 212, 0.12);
    color: #0891b2;
}
.badge-white {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary);
}
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-badge {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 30px;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 14px;
    text-transform: uppercase;
}
.section-header h2 {
    font-size: 36px;
    font-weight: 900;
    color: var(--text-main);
    line-height: 1.3;
    margin-bottom: 10px;
}
.section-header p {
    color: var(--text-muted);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    transition: var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 900;
    color: var(--text-main);
    letter-spacing: 0.5px;
    flex-shrink: 0;
}
.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 18px;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
}
.nav-list {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
}
.nav-item {
    position: relative;
}
.nav-item > a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 15px;
    color: var(--text-main);
}
.nav-item > a:hover {
    color: var(--primary);
    background: rgba(79, 70, 229, 0.06);
}
.nav-item.active > a {
    color: var(--primary);
    background: rgba(79, 70, 229, 0.1);
    font-weight: 600;
}
.dropdown-icon {
    font-size: 11px;
    transition: transform 0.3s;
}
.nav-item:hover .dropdown-icon {
    transform: rotate(180deg);
}
.mega-panel {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 24px;
    min-width: 420px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
    border: 1px solid var(--border);
}
.nav-item.has-dropdown:hover .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.mega-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.mega-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
}
.mega-col ul li {
    margin-bottom: 10px;
}
.mega-col ul li a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-main);
    padding: 6px 0;
    border-radius: 8px;
}
.mega-col ul li a:hover {
    color: var(--primary);
    transform: translateX(4px);
}
.mega-col ul li a i {
    color: var(--primary);
    width: 16px;
    text-align: center;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-main);
    cursor: pointer;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.mobile-toggle:hover {
    background: var(--bg-soft);
}
.page-hero {
    position: relative;
    padding: 70px 0 60px;
    background: linear-gradient(135deg, rgba(11, 17, 33, 0.92), rgba(30, 42, 80, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #ffffff;
}
.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, rgba(244, 246, 252, 1));
    pointer-events: none;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 28px;
}
.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
}
.breadcrumb a:hover {
    color: #ffffff;
}
.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
}
.page-hero h1 {
    font-size: 38px;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 20px;
    max-width: 860px;
    color: #ffffff;
}
.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}
.post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.post-meta i {
    font-size: 13px;
    color: var(--accent-light);
}
.article-layout {
    padding: 60px 0 80px;
    position: relative;
    z-index: 2;
}
.article-main {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    padding: 0;
}
.post-cover {
    width: 100%;
    height: 340px;
    overflow: hidden;
    position: relative;
}
.post-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.post-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 1));
}
.post-body {
    padding: 40px 48px 48px;
}
.post-content {
    font-size: 16px;
    line-height: 1.9;
    color: #374151;
}
.post-content p {
    margin-bottom: 20px;
}
.post-content h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-main);
    margin: 36px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
}
.post-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin: 28px 0 14px;
}
.post-content ul,
.post-content ol {
    margin: 0 0 20px 20px;
    padding: 0;
}
.post-content ul li {
    list-style: disc;
    margin-bottom: 8px;
    padding-left: 4px;
}
.post-content ol li {
    list-style: decimal;
    margin-bottom: 8px;
    padding-left: 4px;
}
.post-content a {
    color: var(--primary);
    font-weight: 500;
    border-bottom: 1px dashed var(--primary-light);
}
.post-content a:hover {
    color: var(--primary-dark);
    border-bottom-style: solid;
}
.post-content blockquote {
    margin: 24px 0;
    padding: 20px 24px;
    background: var(--bg-soft);
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    color: var(--text-main);
    font-style: normal;
}
.post-content img {
    border-radius: 16px;
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    border-radius: 12px;
    overflow: hidden;
}
.post-content th,
.post-content td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
}
.post-content th {
    background: var(--bg-soft);
    font-weight: 600;
}
.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 28px;
    margin-top: 32px;
    border-top: 1px solid var(--border);
}
.post-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
}
.post-share span {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}
.post-share a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 15px;
    transition: var(--transition);
}
.post-share a:hover {
    background: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
}
.not-found {
    text-align: center;
    padding: 80px 40px;
}
.not-found i {
    font-size: 64px;
    color: var(--border);
    margin-bottom: 20px;
}
.not-found h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
}
.not-found p {
    color: var(--text-muted);
    margin-bottom: 28px;
}
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.widget {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 240, 0.6);
}
.widget-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--bg-soft);
}
.widget-title i {
    color: var(--primary);
}
.widget-post-list li {
    margin-bottom: 12px;
    border-radius: 10px;
    transition: var(--transition);
}
.widget-post-list li:last-child {
    margin-bottom: 0;
}
.widget-post-list a {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px;
    border-radius: 10px;
    transition: var(--transition);
}
.widget-post-list a:hover {
    background: rgba(79, 70, 229, 0.05);
    transform: translateX(4px);
}
.widget-post-list .thumb {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(6, 182, 212, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
    font-size: 14px;
}
.widget-post-list .info {
    flex: 1;
    min-width: 0;
}
.widget-post-list .title {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.widget-post-list .date {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 3px;
}
.widget-empty {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
    padding: 20px 0;
}
.category-widget .category-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border-radius: 12px;
    background: var(--bg-body);
    margin-bottom: 12px;
    border: 1px solid transparent;
    transition: var(--transition);
}
.category-widget .category-card:last-child {
    margin-bottom: 0;
}
.category-widget .category-card:hover {
    border-color: rgba(79, 70, 229, 0.2);
    background: rgba(79, 70, 229, 0.04);
    transform: translateX(4px);
}
.category-widget .category-card > i {
    font-size: 20px;
    color: var(--primary);
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(79, 70, 229, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.category-widget .category-card strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 2px;
}
.category-widget .category-card small {
    font-size: 13px;
    color: var(--text-muted);
}
.help-card {
    text-align: center;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.06), rgba(6, 182, 212, 0.06));
    border: 1px solid rgba(79, 70, 229, 0.1);
}
.help-card > i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 12px;
}
.help-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}
.help-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}
.related-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, var(--bg-white), var(--bg-body));
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.related-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    display: block;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 70, 229, 0.15);
}
.related-thumb {
    position: relative;
    height: 160px;
    overflow: hidden;
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
    transform: scale(1.05);
}
.related-thumb .badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
}
.related-body {
    padding: 18px 20px 20px;
}
.related-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
}
.related-body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 40px;
}
.related-date {
    font-size: 12px;
    color: var(--text-light);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.section-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
}
.faq-section {
    padding: 80px 0;
    background: var(--bg-white);
}
.faq-wrap {
    max-width: 860px;
    margin: 0 auto;
}
.accordion {
    background: transparent;
    margin: 0;
    border: none;
}
.accordion-item {
    background: var(--bg-white);
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.accordion-item:hover {
    border-color: rgba(79, 70, 229, 0.3) !important;
    box-shadow: var(--shadow-sm);
}
.accordion-item.is-active {
    border-color: rgba(79, 70, 229, 0.4) !important;
    box-shadow: var(--shadow-sm);
}
.accordion-title {
    background: var(--bg-white) !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    color: var(--text-main) !important;
    padding: 18px 24px !important;
    border: none !important;
    border-radius: 0 !important;
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 1.4;
}
.accordion-title::before {
    content: '\f059';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 16px;
    color: var(--primary);
    margin-right: 8px;
}
.accordion-title::after {
    content: '\f107' !important;
    font-family: 'Font Awesome 6 Free' !important;
    font-weight: 900 !important;
    color: var(--text-muted) !important;
    transition: transform 0.3s !important;
}
.accordion-item.is-active .accordion-title::after {
    transform: rotate(180deg);
}
.accordion-content {
    background: var(--bg-body) !important;
    border: none !important;
    padding: 0 24px 22px !important;
    color: var(--text-muted) !important;
    font-size: 15px !important;
    line-height: 1.8 !important;
}
.accordion-content p {
    margin: 0;
}
.cta-section {
    padding: 90px 0;
    position: relative;
    background: linear-gradient(135deg, rgba(11, 17, 33, 0.93), rgba(30, 41, 82, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #ffffff;
    text-align: center;
}
.cta-section .section-header {
    margin-bottom: 30px;
}
.cta-section .section-badge {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}
.cta-section h2 {
    color: #ffffff;
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 16px;
}
.cta-section p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 17px;
    max-width: 600px;
    margin: 0 auto 36px;
}
.cta-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.stat-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 20px 32px;
    min-width: 150px;
    backdrop-filter: blur(4px);
}
.stat-item .num {
    font-size: 34px;
    font-weight: 900;
    color: #ffffff;
    display: block;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff, var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-item .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
    display: block;
}
.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 50px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 16px;
}
.footer-about {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 340px;
    margin: 0;
}
.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.footer-col ul li a:hover {
    color: #ffffff;
    transform: translateX(4px);
}
.footer-col ul li a i {
    font-size: 12px;
    color: var(--accent-light);
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
}
.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
    margin: 0;
}
@media (max-width: 1024px) {
    .section {
        padding: 60px 0;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .post-body {
        padding: 32px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
    .page-hero h1 {
        font-size: 32px;
    }
}
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    .nav-list {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 20px 30px rgba(15, 23, 42, 0.1);
        border-bottom: 1px solid var(--border);
        gap: 4px;
        align-items: stretch;
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }
    .nav-list.open {
        display: flex;
    }
    .nav-item > a {
        padding: 14px 16px;
        width: 100%;
        border-radius: 10px;
    }
    .nav-item.active > a {
        background: rgba(79, 70, 229, 0.1);
    }
    .mega-panel {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        min-width: 0;
        box-shadow: none;
        padding: 12px 16px;
        background: var(--bg-body);
        border: none;
        border-radius: 10px;
        margin-top: 4px;
    }
    .nav-item.has-dropdown.open .mega-panel {
        display: block;
    }
    .mega-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .article-layout {
        padding: 40px 0 60px;
    }
    .post-cover {
        height: 220px;
    }
    .post-body {
        padding: 28px 20px 36px;
    }
    .sidebar {
        margin-top: 30px;
    }
    .related-section,
    .faq-section,
    .cta-section {
        padding: 50px 0;
    }
    .related-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .related-thumb {
        height: 180px;
    }
    .section-header h2 {
        font-size: 28px;
    }
    .page-hero {
        padding: 50px 0 44px;
    }
    .page-hero h1 {
        font-size: 26px;
    }
    .cta-stats {
        gap: 20px;
    }
    .stat-item {
        padding: 16px 24px;
        min-width: 120px;
    }
    .stat-item .num {
        font-size: 26px;
    }
}
@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .logo {
        font-size: 17px;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 15px;
    }
    .main-nav {
        height: 64px;
    }
    .nav-list {
        top: 64px;
        padding: 16px;
    }
    .nav-cta .btn {
        display: none;
    }
    .page-hero h1 {
        font-size: 22px;
    }
    .post-meta {
        gap: 12px;
        font-size: 13px;
    }
    .post-cover {
        height: 170px;
    }
    .post-content {
        font-size: 15px;
    }
    .post-content h2 {
        font-size: 22px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .cta-section h2 {
        font-size: 26px;
    }
    .stat-item {
        min-width: 100px;
        padding: 14px 18px;
    }
    .stat-item .num {
        font-size: 22px;
    }
    .accordion-title {
        font-size: 14px !important;
        padding: 16px 18px !important;
    }
    .related-thumb {
        height: 200px;
    }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #2a7de1;
            --primary-dark: #1e5fb5;
            --primary-light: #e8f1fe;
            --accent: #7c5cff;
            --secondary: #00b594;
            --dark: #0c1426;
            --bg: #f5f7fb;
            --card-bg: #ffffff;
            --text: #1a2233;
            --text-light: #6b7686;
            --border: #e5e9f2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(15, 32, 70, 0.08);
            --shadow-lg: 0 16px 44px rgba(15, 32, 70, 0.12);
            --transition: 0.3s ease;
            --nav-h: 72px;
        }

        /* ========== 基础 Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

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

        img {
            max-width: 100%;
            display: block;
            border: 0;
        }

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

        button {
            border: none;
            background: none;
            font-family: inherit;
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--dark);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border-radius: 50px;
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
            transition: all 0.3s ease;
            outline: none;
        }

        .btn i {
            font-size: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(42, 125, 225, 0.35);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(42, 125, 225, 0.35);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(42, 125, 225, 0.45);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(42, 125, 225, 0.3);
        }

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

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

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

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

        .btn-light {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
        }

        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

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

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

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

        .btn-block {
            width: 100%;
        }

        /* ========== 标签 / 徽章 ========== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 50px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .tag i {
            font-size: 12px;
        }

        .badge {
            display: inline-block;
            padding: 5px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 50px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-warn {
            background: #fff4e5;
            color: #d97706;
        }

        .badge-success {
            background: #e1f8f1;
            color: #0d9668;
        }

        .badge-danger {
            background: #fde8e8;
            color: #d64545;
        }

        /* ========== Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-h);
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(42, 125, 225, 0.35);
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            flex: 1;
            justify-content: center;
        }

        .nav-item {
            position: relative;
        }

        .nav-item>a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 50px;
            transition: all var(--transition);
        }

        .nav-item>a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-item.active>a {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .dropdown-icon {
            font-size: 10px;
            margin-left: 2px;
            transition: transform var(--transition);
        }

        .nav-item.has-dropdown:hover .dropdown-icon,
        .nav-item.has-dropdown.active .dropdown-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 520px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 100;
        }

        .nav-item.has-dropdown:hover .mega-panel,
        .nav-item.has-dropdown:focus-within .mega-panel,
        .nav-item.has-dropdown.open .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .mega-col h4 {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .mega-col ul li {
            margin-bottom: 4px;
        }

        .mega-col ul a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 10px;
            font-size: 14px;
            color: var(--text);
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
        }

        .mega-col ul a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mega-col ul a i {
            width: 18px;
            text-align: center;
            color: var(--primary);
            font-size: 13px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-cta .btn {
            box-shadow: 0 4px 12px rgba(42, 125, 225, 0.3);
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            transition: background var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ========== Hero / Banner ========== */
        .category-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 120px 0 100px;
            color: #fff;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(12, 20, 38, 0.88) 0%, rgba(12, 20, 38, 0.62) 55%, rgba(42, 125, 225, 0.35) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero-badge i {
            color: #fff;
        }

        .category-hero h1 {
            font-size: 46px;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 800;
        }

        .category-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.9);
            max-width: 620px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }

        .hero-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 50px;
        }

        .section-sub {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 34px;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 16px;
        }

        /* ========== 服务卡片 ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

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

        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .card-img {
            position: relative;
            height: 170px;
            overflow: hidden;
        }

        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .card-item:hover .card-img img {
            transform: scale(1.06);
        }

        .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12, 20, 38, 0.45), transparent 60%);
        }

        .card-icon {
            position: absolute;
            bottom: 16px;
            left: 16px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: #fff;
            color: var(--primary);
            border-radius: 12px;
            font-size: 17px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
        }

        .card-body {
            padding: 22px;
        }

        .card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

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

        .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ========== 服务流程 ========== */
        .section-process {
            background: #fff;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .process-step {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            position: relative;
            transition: background var(--transition), transform var(--transition);
        }

        .process-step:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
        }

        .step-num {
            position: absolute;
            top: 18px;
            right: 20px;
            font-size: 40px;
            font-weight: 800;
            color: rgba(42, 125, 225, 0.15);
            line-height: 1;
        }

        .step-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 20px;
            background: #fff;
            color: var(--primary);
            font-size: 24px;
            box-shadow: var(--shadow);
        }

        .process-step h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== 数据指标 ========== */
        .section-stats {
            padding: 0;
            margin: 80px 0;
        }

        .stats-panel {
            position: relative;
            border-radius: 24px;
            background-size: cover;
            background-position: center;
            padding: 64px 48px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .stats-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 20, 38, 0.92) 0%, rgba(30, 50, 90, 0.78) 100%);
        }

        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
            color: #fff;
        }

        .stat-item {
            padding: 20px 10px;
        }

        .stat-number {
            display: block;
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
            color: #fff;
            background: linear-gradient(135deg, #fff, #cfe0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ========== 公告列表 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .news-img {
            height: 180px;
            overflow: hidden;
        }

        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.06);
        }

        .news-body {
            padding: 22px;
        }

        .news-body .badge {
            margin-bottom: 12px;
        }

        .news-body h3 {
            font-size: 17px;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-light);
        }

        .news-meta i {
            color: var(--primary);
        }

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

        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            background: #fff;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.12);
        }

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

        .faq-question i {
            color: var(--text-light);
            font-size: 14px;
            transition: transform var(--transition), color var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .section-cta {
            padding-top: 0;
        }

        .cta-panel {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(42, 125, 225, 0.35);
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

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

        .cta-content h2 {
            font-size: 30px;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 28px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 340px;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-col ul a i {
            font-size: 12px;
            color: var(--primary);
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-bottom {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .mega-panel {
                min-width: 440px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .main-nav {
                gap: 10px;
            }

            .nav-list {
                position: absolute;
                top: var(--nav-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                display: none;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
            }

            .nav-list.open {
                display: flex;
            }

            .nav-item>a {
                justify-content: space-between;
                padding: 12px 14px;
                border-radius: 12px;
            }

            .nav-cta {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .mega-panel {
                position: static;
                transform: none;
                min-width: 0;
                box-shadow: none;
                border: none;
                border-left: 2px solid var(--primary-light);
                border-radius: 0;
                padding: 4px 0 4px 12px;
                opacity: 1;
                visibility: visible;
                display: none;
                background: transparent;
            }

            .nav-item.has-dropdown.open .mega-panel {
                display: block;
            }

            .nav-item.has-dropdown:hover .mega-panel {
                opacity: 1;
                visibility: visible;
                transform: none;
            }

            .mega-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .category-hero {
                padding: 80px 0 60px;
            }

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

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

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

            .section {
                padding: 60px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

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

            .footer-about-col {
                grid-column: 1 / -1;
            }

            .stats-panel {
                padding: 48px 24px;
            }

            .cta-panel {
                padding: 44px 24px;
            }
        }

        @media (max-width: 520px) {
            .cards-grid {
                grid-template-columns: 1fr;
            }

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

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

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

            .stat-number {
                font-size: 28px;
            }

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

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

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

            .hero-tags {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-actions .btn {
                width: 100%;
            }
        }