/* roulang page: index */
:root {
  --primary: #163a5f;
  --primary-rgb: 22, 58, 95;
  --primary-dark: #0e2944;
  --primary-light: #2a5d8f;
  --accent: #f0a035;
  --accent-rgb: 240, 160, 53;
  --accent-dark: #cc7f1a;
  --bg-main: #f5f8fb;
  --bg-card: #ffffff;
  --bg-deep: #0d2033;
  --text-strong: #122033;
  --text-body: #46586e;
  --text-weak: #7e8da0;
  --border: #e2e9f1;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 12px rgba(22, 58, 95, 0.06);
  --shadow-md: 0 10px 34px rgba(22, 58, 95, 0.10);
  --shadow-lg: 0 18px 54px rgba(22, 58, 95, 0.16);
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
  --space-xxl: 120px;
  --space-xl: 96px;
  --space-lg: 72px;
  --space-md: 48px;
  --space-sm: 24px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-body);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
:focus-visible { outline: 3px solid rgba(var(--accent-rgb), .5); outline-offset: 2px; }

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

/* ===== 导航 ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(22, 58, 95, .04);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 28px; }
.logo { flex-shrink: 0; }
.logo a {
  font-size: 21px; font-weight: 800; color: var(--primary);
  letter-spacing: .5px; display: flex; align-items: center; gap: 8px;
}
.logo a span { color: var(--accent); }
.logo-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(var(--accent-rgb), .15); color: var(--accent-dark);
  font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 30px;
  letter-spacing: .3px;
}
.main-nav {
  display: flex; align-items: center; gap: 6px;
  background: #f0f4f8; border-radius: 44px; padding: 5px;
  flex: 1; max-width: 620px; margin: 0 auto; justify-content: center;
}
.nav-item {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 22px; border-radius: 40px;
  font-size: 14px; font-weight: 600; color: var(--text-body);
  white-space: nowrap; transition: var(--transition); cursor: pointer;
}
.nav-item i { font-size: 13px; opacity: .75; }
.nav-item:hover { color: var(--primary); background: rgba(255, 255, 255, .85); }
.nav-item.active {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), .28);
}
.nav-item.active i { opacity: 1; }
.header-cta { flex-shrink: 0; display: flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 10px; font-size: 15px; font-weight: 700;
  border: 2px solid transparent; cursor: pointer; transition: var(--transition);
  line-height: 1.4;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(var(--primary-rgb), .24); }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(var(--primary-rgb), .32); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(var(--accent-rgb), .3); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); color: #fff; box-shadow: 0 8px 24px rgba(var(--accent-rgb), .4); }
.btn-outline { background: transparent; border-color: rgba(255, 255, 255, .7); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, .12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--primary); }
.btn-ghost:hover { border-color: var(--primary); background: rgba(var(--primary-rgb), .04); }

.menu-toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--border); background: #fff; color: var(--primary);
  font-size: 18px; cursor: pointer; align-items: center; justify-content: center;
}

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, rgba(14, 41, 68, .88), rgba(22, 58, 95, .78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 140px 0 120px; color: #fff;
}
.hero::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 80px;
  background: linear-gradient(to bottom, transparent, rgba(245, 248, 251, .7));
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .22);
  padding: 8px 20px; border-radius: 50px; font-size: 13px; font-weight: 600;
  letter-spacing: .5px; margin-bottom: 28px; color: #fde3b6;
}
.hero-eyebrow i { font-size: 12px; }
.hero h1 {
  font-size: clamp(38px, 5vw, 58px); font-weight: 800; color: #fff;
  line-height: 1.25; letter-spacing: .5px; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead {
  font-size: 18px; line-height: 1.8; color: rgba(255, 255, 255, .9);
  max-width: 580px; margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trust {
  display: flex; gap: 30px; margin-top: 56px;
  padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, .18);
  flex-wrap: wrap;
}
.hero-trust-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .85); }
.hero-trust-item i { color: var(--accent); font-size: 18px; }

/* ===== Section ===== */
.section { padding: var(--space-xl) 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 64px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(var(--primary-rgb), .08); color: var(--primary);
  font-size: 13px; font-weight: 700; padding: 6px 18px; border-radius: 40px;
  letter-spacing: .4px; margin-bottom: 18px;
}
.section-head h2 { font-size: clamp(30px, 3.4vw, 40px); font-weight: 800; color: var(--text-strong); line-height: 1.3; }
.section-head p { font-size: 16px; color: var(--text-weak); margin-top: 14px; }

/* ===== 核心优势卡片 ===== */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.feature-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 34px 28px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(var(--primary-rgb), .15); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), .1), rgba(var(--accent-rgb), .12));
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--primary); margin-bottom: 22px;
}
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--text-strong); margin-bottom: 12px; }
.feature-card p { font-size: 14px; line-height: 1.75; color: var(--text-weak); }

/* ===== 流程 ===== */
.process-section { background: var(--bg-card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; position: relative; }
.process-item { text-align: center; position: relative; padding: 30px 18px; }
.process-num {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 22px;
  background: var(--primary); color: #fff; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(var(--primary-rgb), .28);
  position: relative; z-index: 2;
}
.process-item::after {
  content: ''; position: absolute; top: 50%; left: 60%; width: calc(100% - 40px);
  border-top: 2px dashed #c6d4e4; z-index: 1;
}
.process-item:last-child::after { display: none; }
.process-item h3 { font-size: 18px; font-weight: 700; color: var(--text-strong); margin-bottom: 10px; }
.process-item p { font-size: 14px; color: var(--text-weak); max-width: 200px; margin: 0 auto; }

/* ===== 分类入口 ===== */
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.cat-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  min-height: 340px; display: flex; align-items: flex-end;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  background-size: cover; background-position: center;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cat-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10, 30, 50, .82), rgba(10, 30, 50, .15) 60%, rgba(10, 30, 50, .2));
  transition: var(--transition);
}
.cat-card:hover .cat-card-overlay { background: linear-gradient(to top, rgba(10, 30, 50, .88), rgba(10, 30, 50, .2) 65%, rgba(10, 30, 50, .25)); }
.cat-card-content { position: relative; z-index: 2; padding: 38px; width: 100%; }
.cat-card-tag {
  display: inline-block; background: var(--accent); color: #0b1a28;
  font-size: 12px; font-weight: 800; padding: 5px 14px; border-radius: 30px;
  letter-spacing: .4px; margin-bottom: 14px;
}
.cat-card h3 { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.cat-card p { font-size: 14px; color: rgba(255, 255, 255, .88); line-height: 1.7; max-width: 420px; margin-bottom: 22px; }
.cat-card-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: #fff; font-size: 14px; font-weight: 700;
}
.cat-card-link i { transition: transform .3s; }
.cat-card:hover .cat-card-link i { transform: translateX(5px); }
.cat-card-link:hover { color: var(--accent); }

/* ===== 资讯列表 ===== */
.news-section { background: var(--bg-main); }
.news-layout { display: grid; grid-template-columns: 1fr; gap: 18px; max-width: 860px; margin: 0 auto; }
.news-card {
  display: flex; align-items: center; gap: 22px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 24px 30px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(var(--primary-rgb), .18); }
.news-card-icon {
  width: 56px; height: 56px; border-radius: 14px; flex-shrink: 0;
  background: rgba(var(--primary-rgb), .08); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.news-card-body { flex: 1; min-width: 0; }
.news-card-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; flex-wrap: wrap; }
.news-cat-tag {
  font-size: 12px; font-weight: 700; color: var(--accent-dark);
  background: rgba(var(--accent-rgb), .12); padding: 3px 12px; border-radius: 20px;
}
.news-date { font-size: 13px; color: var(--text-weak); display: flex; align-items: center; gap: 5px; }
.news-card h3 { font-size: 17px; font-weight: 700; color: var(--text-strong); margin-bottom: 6px; line-height: 1.5; }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { font-size: 14px; color: var(--text-weak); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-empty { text-align: center; padding: 50px 30px; background: var(--bg-card); border-radius: var(--radius-md); border: 1px dashed var(--border); color: var(--text-weak); font-size: 15px; }

/* ===== 数据统计 ===== */
.stats-section {
  background: linear-gradient(135deg, rgba(13, 32, 51, .94), rgba(22, 58, 95, .88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: 88px 0; color: #fff;
  position: relative; overflow: hidden;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item { padding: 24px 10px; }
.stat-num { font-size: 46px; font-weight: 800; line-height: 1.2; color: #fff; position: relative; }
.stat-num span { color: var(--accent); }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, .75); margin-top: 10px; letter-spacing: .5px; }
.stat-divider { width: 40px; height: 3px; background: var(--accent); margin: 16px auto 0; border-radius: 4px; }

/* ===== FAQ ===== */
.faq-wrapper { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); margin-bottom: 16px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover { box-shadow: var(--shadow-md); border-color: rgba(var(--primary-rgb), .15); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 28px; cursor: pointer; list-style: none;
  font-size: 16px; font-weight: 700; color: var(--text-strong);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--accent); font-size: 14px; transition: transform .3s;
  background: rgba(var(--accent-rgb), .14); width: 32px; height: 32px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item[open] summary { border-bottom: 1px solid var(--border); }
.faq-answer { padding: 20px 28px 24px; font-size: 14px; line-height: 1.8; color: var(--text-body); }

/* ===== CTA ===== */
.cta-section {
  position: relative; padding: 96px 0;
  background: linear-gradient(135deg, rgba(14, 41, 68, .92), rgba(22, 58, 95, .85)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  color: #fff; text-align: center;
}
.cta-section h2 { font-size: clamp(30px, 3.6vw, 42px); font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 17px; color: rgba(255, 255, 255, .9); max-width: 560px; margin: 0 auto 40px; }
.cta-actions { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }
.cta-note { margin-top: 28px; font-size: 13px; color: rgba(255, 255, 255, .65); display: flex; align-items: center; justify-content: center; gap: 8px; }
.cta-note i { color: var(--accent); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep); color: rgba(255, 255, 255, .75);
  padding: 72px 0 32px; font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand .logo a { color: #fff; font-size: 20px; }
.footer-brand p { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 16px; max-width: 340px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 20px; letter-spacing: .4px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255, 255, 255, .6); font-size: 14px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 26px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  font-size: 13px; color: rgba(255, 255, 255, .5);
}
.footer-bottom a { color: rgba(255, 255, 255, .7); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-item::after { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { max-width: 440px; }
}

@media screen and (max-width: 768px) {
  :root { --space-xl: 72px; --space-lg: 56px; }
  .hero { padding: 100px 0 80px; }
  .header-inner { height: 68px; }
  .header-cta .btn { display: none; }
  .menu-toggle { display: flex; }
  .main-nav {
    position: absolute; top: 68px; left: 16px; right: 16px;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: #fff; border-radius: 16px; padding: 14px;
    box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    display: none; max-width: none;
  }
  .main-nav.open { display: flex; }
  .nav-item { justify-content: center; padding: 12px 18px; border-radius: 10px; }
  .nav-item.active { background: var(--primary); }
  .cat-grid { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; align-items: flex-start; padding: 22px; }
  .news-card-icon { width: 48px; height: 48px; font-size: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .features-grid { gap: 18px; }
  .feature-card { padding: 26px 20px; }
}

@media screen and (max-width: 520px) {
  :root { --space-xl: 56px; --space-lg: 44px; }
  .hero h1 { font-size: 32px; }
  .hero p.lead { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; gap: 20px; }
  .stats-grid { grid-template-columns: 1fr; gap: 20px; }
  .section-head h2 { font-size: 27px; }
  .cat-card { min-height: 280px; }
  .cat-card-content { padding: 26px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-answer { padding: 16px 20px 20px; }
  .cta-actions .btn { width: 100%; }
  .logo a { font-size: 18px; }
  .logo-badge { display: none; }
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-deep: #1e3a8a;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,.12);
  --transition: all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;line-height:1.75;color:var(--text-main);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{font-family:inherit;font-size:inherit;border:none;outline:none}
.grid-container{padding-left:1.5rem;padding-right:1.5rem}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(0,0,0,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:2rem;max-width:1200px}
.logo{flex-shrink:0}
.logo a{font-size:1.35rem;font-weight:800;color:var(--primary-deep);letter-spacing:.5px}
.logo a span{color:var(--primary);font-weight:700}
.main-nav{display:flex;align-items:center;gap:.6rem;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.nav-item{display:inline-flex;align-items:center;gap:.5rem;padding:.55rem 1.1rem;border-radius:999px;font-size:.925rem;font-weight:600;color:var(--text-muted);white-space:nowrap;border:1px solid transparent;transition:var(--transition)}
.nav-item i{font-size:.8rem;color:var(--text-muted);transition:var(--transition)}
.nav-item:hover{color:var(--primary);background:var(--primary-light);border-color:rgba(37,99,235,.12)}
.nav-item:hover i{color:var(--primary)}
.nav-item.active{color:#fff;background:var(--primary);border-color:var(--primary);box-shadow:0 4px 14px rgba(37,99,235,.28)}
.nav-item.active i{color:#fff}
.header-cta{flex-shrink:0}
.menu-toggle{display:none;background:transparent;padding:.6rem .8rem;border-radius:var(--radius-sm);font-size:1.15rem;color:var(--text-main);cursor:pointer}
.menu-toggle:hover{background:var(--primary-light);color:var(--primary)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.4rem;border-radius:999px;font-size:.93rem;font-weight:600;cursor:pointer;transition:var(--transition);line-height:1.4}
.btn i{font-size:.85rem}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(37,99,235,.28)}
.btn-outline{border:1.5px solid var(--border);color:var(--text-main);background:var(--bg-white)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.btn-light{background:#fff;color:var(--primary-deep)}
.btn-light:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.btn-lg{padding:.9rem 1.8rem;font-size:1rem}
.btn-sm{padding:.45rem 1rem;font-size:.85rem}

/* Banner */
.page-banner{position:relative;padding:5.5rem 0 4.5rem;background:linear-gradient(135deg,rgba(15,23,42,.88),rgba(30,58,138,.82)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;text-align:center}
.page-banner::after{content:'';position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.breadcrumb{display:flex;justify-content:center;align-items:center;gap:.6rem;font-size:.86rem;color:rgba(255,255,255,.7);margin-bottom:1.2rem}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:.7rem;opacity:.6}
.page-banner h1{font-size:2.6rem;font-weight:800;line-height:1.3;margin-bottom:.8rem;letter-spacing:.5px}
.page-banner h1 span{color:var(--accent)}
.page-banner p{font-size:1.05rem;color:rgba(255,255,255,.85);max-width:720px;margin:0 auto;line-height:1.8}
.banner-badge{display:inline-flex;align-items:center;gap:.4rem;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.16);padding:.35rem 1rem;border-radius:999px;font-size:.82rem;color:#fff;margin-bottom:1.5rem}
.banner-badge i{color:var(--accent)}

/* Section */
.section{padding:4.5rem 0}
.section-light{background:var(--bg-light)}
.section-white{background:var(--bg-white)}
.section-head{text-align:center;max-width:760px;margin:0 auto 3rem}
.section-tag{display:inline-flex;align-items:center;gap:.4rem;background:var(--primary-light);color:var(--primary);font-size:.82rem;font-weight:600;padding:.35rem 1rem;border-radius:999px;margin-bottom:.8rem}
.section-tag i{font-size:.75rem}
.section-head h2{font-size:2rem;font-weight:800;color:var(--text-main);line-height:1.35;margin-bottom:.7rem}
.section-head p{color:var(--text-muted);font-size:.98rem;line-height:1.8}

/* Stat Cards */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.stat-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-md);padding:2rem 1.6rem;text-align:center;transition:var(--transition);box-shadow:var(--shadow-sm)}
.stat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(37,99,235,.2)}
.stat-icon{width:56px;height:56px;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;border-radius:14px;background:var(--primary-light);font-size:1.4rem;color:var(--primary)}
.stat-card h3{font-size:1.05rem;font-weight:700;margin-bottom:.4rem;color:var(--text-main)}
.stat-card p{font-size:.88rem;color:var(--text-muted);line-height:1.7}

/* Entry Method Cards */
.entry-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem}
.entry-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.entry-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,235,.15)}
.entry-card .card-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.entry-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.entry-card:hover .card-img img{transform:scale(1.06)}
.entry-card .card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(15,23,42,.42),transparent 60%)}
.card-body{padding:1.6rem;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:1.15rem;font-weight:700;margin-bottom:.5rem;color:var(--text-main)}
.card-body p{font-size:.88rem;color:var(--text-muted);line-height:1.7;margin-bottom:1rem;flex:1}
.card-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.2rem}
.tag{display:inline-flex;align-items:center;gap:.3rem;background:var(--bg-light);border:1px solid var(--border);color:var(--text-muted);font-size:.75rem;font-weight:500;padding:.25rem .7rem;border-radius:999px}
.tag i{font-size:.65rem;color:var(--primary)}
.card-link{display:inline-flex;align-items:center;gap:.4rem;font-size:.87rem;font-weight:600;color:var(--primary)}
.card-link i{font-size:.75rem;transition:var(--transition)}
.card-link:hover i{transform:translateX(4px)}

/* Steps */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;position:relative}
.step-item{position:relative;text-align:center;padding:2rem 1.2rem;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-md);transition:var(--transition)}
.step-item:hover{box-shadow:var(--shadow-md);border-color:rgba(37,99,235,.2);transform:translateY(-4px)}
.step-num{width:44px;height:44px;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--primary);color:#fff;font-size:1rem;font-weight:700;box-shadow:0 6px 16px rgba(37,99,235,.3)}
.step-item h3{font-size:.98rem;font-weight:700;margin-bottom:.5rem;color:var(--text-main)}
.step-item p{font-size:.83rem;color:var(--text-muted);line-height:1.7}
.step-item::after{content:'\f061';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;right:-1.1rem;top:50%;transform:translateY(-50%);color:var(--primary);font-size:.85rem;z-index:2;opacity:.7}
.step-item:last-child::after{display:none}

/* Feature List */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem}
.feature-block{text-align:center;padding:2.2rem 1.5rem}
.feature-icon{width:64px;height:64px;margin:0 auto 1.2rem;display:flex;align-items:center;justify-content:center;border-radius:18px;background:linear-gradient(135deg,var(--primary-light),var(--accent-light));font-size:1.5rem;color:var(--primary)}
.feature-block h3{font-size:1.05rem;font-weight:700;margin-bottom:.5rem}
.feature-block p{font-size:.88rem;color:var(--text-muted);line-height:1.75}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:1rem;transition:var(--transition)}
.faq-item:hover{border-color:rgba(37,99,235,.18);box-shadow:var(--shadow-sm)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:1.2rem 1.5rem;cursor:pointer;font-size:.95rem;font-weight:600;color:var(--text-main)}
.faq-question i{font-size:.85rem;color:var(--text-muted);transition:var(--transition)}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--primary)}
.faq-answer{display:none;padding:0 1.5rem 1.2rem;font-size:.88rem;color:var(--text-muted);line-height:1.8;border-top:1px dashed var(--border);padding-top:1rem}
.faq-item.active .faq-answer{display:block}

/* CTA */
.cta-section{position:relative;padding:5rem 0;background:linear-gradient(135deg,var(--primary-deep),var(--primary-dark));border-radius:var(--radius-lg);text-align:center;color:#fff;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-section::after{content:'';position:absolute;bottom:-60px;left:-60px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.04)}
.cta-section h2{font-size:1.8rem;font-weight:800;margin-bottom:.8rem}
.cta-section p{font-size:.95rem;color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 1.8rem}
.cta-buttons{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;position:relative;z-index:2}

/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:4rem 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;padding-bottom:2.5rem}
.footer-brand .logo a{color:#fff}
.footer-brand .logo a span{color:var(--accent)}
.footer-brand p{font-size:.88rem;line-height:1.8;margin-top:1rem;color:rgba(255,255,255,.55);max-width:380px}
.footer-col h4{font-size:.95rem;font-weight:600;color:#fff;margin-bottom:1rem;letter-spacing:.5px}
.footer-col ul li{margin-bottom:.6rem}
.footer-col ul li a{font-size:.88rem;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--accent);padding-left:6px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.8rem;border-top:1px solid rgba(255,255,255,.08);padding:1.4rem 0;font-size:.82rem;color:rgba(255,255,255,.45)}
.footer-bottom i{font-size:.75rem}

/* Responsive */
@media(max-width:1024px){
  .header-inner{gap:1rem}
  .nav-item{padding:.5rem .8rem;font-size:.85rem}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:1.2rem}
  .step-item::after{display:none}
  .entry-cards{grid-template-columns:repeat(2,1fr);gap:1.2rem}
  .stat-grid{grid-template-columns:repeat(3,1fr);gap:1rem}
  .feature-grid{grid-template-columns:repeat(3,1fr);gap:1rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media(max-width:768px){
  .menu-toggle{display:block}
  .main-nav{position:fixed;top:76px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:1.2rem 1.5rem;border-bottom:1px solid var(--border);box-shadow:0 12px 30px rgba(0,0,0,.08);transform:translateY(-16px);opacity:0;visibility:hidden;transition:var(--transition);z-index:99;overflow-y:auto;gap:.4rem;max-height:calc(100vh - 76px)}
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-item{display:flex;padding:.8rem 1rem;border-radius:var(--radius-sm);font-size:.92rem}
  .header-inner{height:76px}
  .page-banner h1{font-size:1.75rem}
  .page-banner p{font-size:.92rem}
  .section{padding:3rem 0}
  .section-head h2{font-size:1.5rem}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-card{padding:1.4rem 1rem}
  .entry-cards{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:1.5rem}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-section{padding:3.5rem 1.2rem}
  .cta-section h2{font-size:1.4rem}
}
@media(max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .logo a{font-size:1.1rem}
  .page-banner{padding:3.5rem 0 3rem}
  .page-banner h1{font-size:1.5rem}
  .section-head h2{font-size:1.3rem}
  .grid-container{padding-left:1rem;padding-right:1rem}
}

/* roulang page: article */
:root {
  --primary: #1a4f9e;
  --primary-dark: #143c77;
  --primary-light: #e8f0fe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg-body: #f7f9fc;
  --surface: #ffffff;
  --surface-alt: #f0f4fa;
  --text-main: #13294b;
  --text-light: #5a6b8c;
  --text-muted: #8b9bb4;
  --border: #e3eaf3;
  --border-light: #eef2f7;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(20, 60, 119, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 60, 119, 0.14);
  --space-section: 96px;
  --space-section-mobile: 64px;
  --nav-height: 76px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--text-main);
  background: var(--bg-body);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: all .2s ease; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; }
.grid-container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

.site-header {
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(20, 60, 119, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: 24px;
}
.logo { flex-shrink: 0; }
.logo a {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  white-space: nowrap;
  line-height: 1.2;
}
.logo span { color: var(--accent); font-weight: 600; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--surface-alt);
  border-radius: 40px;
  border: 1px solid var(--border-light);
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
  justify-content: center;
}
.main-nav::-webkit-scrollbar { display: none; }
.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 32px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-light);
  white-space: nowrap;
  transition: all .25s ease;
}
.nav-item i { font-size: 13px; }
.nav-item:hover { color: var(--primary); background: rgba(255, 255, 255, 0.85); }
.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 79, 158, 0.3);
}
.header-actions { flex-shrink: 0; display: flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all .25s ease;
  cursor: pointer;
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 79, 158, 0.22);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(26, 79, 158, 0.3);
}
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #f0f4fa; transform: translateY(-2px); }
.btn-outline-light { border-color: rgba(255, 255, 255, 0.75); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.14); border-color: #fff; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  color: var(--text-main);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.article-hero {
  position: relative;
  padding: 92px 0 72px;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 27, 53, 0.9) 0%, rgba(26, 79, 158, 0.74) 100%);
}
.article-hero-inner { position: relative; z-index: 2; max-width: 880px; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a { color: #fff; font-weight: 600; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.5; }
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.32);
  letter-spacing: 0.5px;
}
.article-hero h1 {
  font-size: 34px;
  line-height: 1.4;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.86);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }

.article-main-section { padding: 80px 0 64px; }
.article-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
  border: 1px solid var(--border-light);
}
.article-body {
  font-size: 16px;
  line-height: 2;
  color: var(--text-main);
}
.article-body h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  margin: 30px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 26px 0 12px;
}
.article-body p { margin: 14px 0; }
.article-body ul, .article-body ol { margin: 14px 0 14px 24px; }
.article-body ul li, .article-body ol li { margin: 8px 0; padding-left: 4px; position: relative; }
.article-body ul li::before { content: "•"; color: var(--accent); font-weight: 700; position: absolute; left: -16px; }
.article-body ol { list-style: decimal; }
.article-body ol li::before { content: normal; }
.article-body img { border-radius: var(--radius-md); margin: 22px 0; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  color: var(--text-light);
}
.article-tags {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px dashed var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.not-found {
  text-align: center;
  padding: 60px 20px;
}
.not-found i { font-size: 52px; color: var(--accent); margin-bottom: 20px; }
.not-found h2 { font-size: 26px; margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 24px; }

.sidebar { display: flex; flex-direction: column; gap: 24px; }
.widget-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  padding: 26px;
}
.widget-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.widget-card h3 i { color: var(--primary); }
.widget-list { display: flex; flex-direction: column; }
.widget-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--border);
}
.widget-list li:last-child { border-bottom: none; }
.widget-list li span { color: var(--text-light); }
.widget-list li strong { color: var(--text-main); font-weight: 700; }
.quick-nav-list { display: flex; flex-direction: column; gap: 10px; }
.quick-nav-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  transition: all .25s ease;
}
.quick-nav-list a:hover {
  background: var(--primary);
  color: #fff;
  padding-left: 18px;
}
.widget-tip {
  background: linear-gradient(135deg, #fffbea 0%, #fff7d6 100%);
  border: 1px solid #f5e8b0;
}
.widget-tip h3 i { color: var(--accent); }
.widget-tip p { font-size: 14px; color: #7a6320; line-height: 1.8; margin: 0; }

.related-section { padding: var(--space-section) 0; background: var(--surface-alt); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 1.5px;
}
.section-head h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.section-head p { color: var(--text-light); font-size: 15px; max-width: 520px; margin: 0 auto; }
.related-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.related-img { overflow: hidden; aspect-ratio: 16 / 9; display: block; }
.related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.related-card:hover .related-img img { transform: scale(1.05); }
.related-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.related-cat {
  align-self: flex-start;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.related-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.5; }
.related-body p { font-size: 14px; color: var(--text-light); flex: 1; margin-bottom: 14px; }
.text-link { color: var(--primary); font-weight: 700; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.text-link i { transition: transform .2s ease; }
.text-link:hover i { transform: translateX(4px); }

.notice-section { padding: 64px 0; }
.notice-box {
  display: flex;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  color: #fff;
  box-shadow: 0 10px 30px rgba(26, 79, 158, 0.25);
}
.notice-icon {
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.notice-content { flex: 1; }
.notice-content h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.notice-content p { opacity: 0.88; font-size: 14px; margin: 0; }

.cta-section { padding: 0 0 var(--space-section); }
.cta-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  padding: 80px 60px;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-hover);
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 27, 53, 0.9), rgba(26, 79, 158, 0.7));
}
.cta-content { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; }
.cta-content h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.cta-content p { font-size: 16px; opacity: 0.92; margin-bottom: 28px; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.site-footer {
  background: #0d1f3a;
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}
.footer-brand .logo a { color: #fff; font-size: 26px; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.62);
  max-width: 340px;
}
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: rgba(255, 255, 255, 0.62); transition: all .2s ease; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-col span { font-size: 14px; color: rgba(255, 255, 255, 0.45); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding-bottom: 28px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 1024px) {
  :root { --space-section: 72px; }
  .article-hero { padding: 72px 0 56px; }
  .article-hero h1 { font-size: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .header-actions .btn { padding: 10px 16px; font-size: 13px; }
}

@media (max-width: 768px) {
  :root { --space-section: 60px; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 20px;
    border-radius: 0;
    box-shadow: 0 16px 28px rgba(0, 0, 0, 0.08);
    display: none;
    gap: 8px;
    align-items: stretch;
    border-bottom: 1px solid var(--border-light);
  }
  .main-nav.open { display: flex; }
  .nav-item { padding: 13px 18px; border-radius: 12px; font-size: 15px; }
  .nav-item:hover { background: var(--surface-alt); }
  .article-main-section { padding: 56px 0 48px; }
  .article-card { padding: 28px 22px; }
  .article-hero { padding: 56px 0 46px; }
  .article-hero h1 { font-size: 26px; }
  .widget-card { padding: 20px; }
  .related-card { margin-bottom: 20px; }
  .cta-card { padding: 60px 24px; }
  .cta-content h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .notice-box { flex-direction: column; text-align: center; padding: 28px 20px; }
  .section-head h2 { font-size: 26px; }
  .related-section, .cta-section, .notice-section { padding-bottom: 48px; }
  .site-footer { padding-top: 48px; }
}

@media (max-width: 520px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .logo a { font-size: 21px; }
  .header-inner { gap: 14px; }
  .article-hero { padding: 48px 0 40px; }
  .article-hero h1 { font-size: 22px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-card { padding: 22px 16px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 21px; }
  .related-body { padding: 18px; }
  .related-body h3 { font-size: 16px; }
  .btn { padding: 9px 16px; font-size: 13px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; }
  .cta-card { padding: 48px 18px; }
  .cta-content h2 { font-size: 23px; }
  .notice-icon { width: 48px; height: 48px; font-size: 20px; }
}

/* roulang page: category2 */
:root {
  --primary: #0A1A33;
  --primary-dark: #060F21;
  --primary-light: #12294D;
  --accent: #E8A317;
  --accent-dark: #C88612;
  --accent-light: #FFD166;
  --bg: #F4F6FB;
  --white: #FFFFFF;
  --text: #1B2437;
  --text-muted: #5C6B82;
  --text-light: #8A97A8;
  --border: #E2E8F0;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(10,26,51,.05);
  --shadow: 0 8px 30px rgba(10,26,51,.08);
  --shadow-lg: 0 18px 50px rgba(10,26,51,.14);
  --transition: all .3s ease;
  --container: 1200px;
}

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

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

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

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

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

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

ul, ol {
  list-style: none;
}

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

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 40px;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.2;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn:focus-visible,
.nav-item:focus-visible,
.nav-toggle:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid rgba(232,163,23,.45);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(10,26,51,.22);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(10,26,51,.28);
}

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

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(232,163,23,.32);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(232,163,23,.4);
}

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

.btn-outline {
  background: rgba(255,255,255,.1);
  color: #fff;
  border-color: rgba(255,255,255,.6);
  backdrop-filter: blur(6px);
}

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

.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: .88rem;
}

.btn-header {
  background: var(--accent);
  color: #fff;
  padding: 9px 24px;
  border-radius: 30px;
  font-weight: 700;
  font-size: .9rem;
  box-shadow: 0 4px 14px rgba(232,163,23,.3);
}

.btn-header:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(10,26,51,.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.site-brand {
  flex-shrink: 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
}

.logo i {
  color: var(--accent);
  font-size: 1.4rem;
}

.logo span {
  color: var(--accent);
}

.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #EDF1F8;
  border-radius: 40px;
  padding: 5px;
  max-width: 620px;
  margin: 0 auto;
}

.nav-item {
  padding: 9px 18px;
  border-radius: 32px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-item:hover {
  color: var(--primary);
  background: rgba(255,255,255,.85);
}

.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(10,26,51,.2);
}

.nav-item.active i {
  color: var(--accent-light);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--primary);
  flex-direction: column;
}

.nav-toggle .bar {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 4px;
  transition: var(--transition);
}

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

.nav-toggle.is-active .bar:nth-child(2) {
  opacity: 0;
}

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

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(8,20,40,.92) 0%, rgba(10,30,58,.78) 50%, rgba(15,42,80,.55) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 110px 0 96px;
  color: #fff;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(232,163,23,.18), transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 40px;
  padding: 7px 18px;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--accent-light);
}

.hero-tag i {
  font-size: .8rem;
}

.page-hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.25;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.page-hero h1 span {
  color: var(--accent-light);
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.85;
  color: rgba(255,255,255,.85);
  margin-bottom: 34px;
  max-width: 640px;
}

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

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 42px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.18);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  color: rgba(255,255,255,.75);
}

.hero-meta-item i {
  color: var(--accent);
}

/* ===== 通用 Section ===== */
.section {
  padding: 96px 0;
}

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

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

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: 2.5px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--primary);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}

.section-dark .section-title {
  color: #fff;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.85;
}

.section-dark .section-desc {
  color: rgba(255,255,255,.7);
}

/* ===== 官方入口介绍 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-image img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  transition: transform .6s ease;
}

.intro-image:hover img {
  transform: scale(1.03);
}

.intro-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(10,26,51,.72);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius);
  padding: 16px 18px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
}

.intro-badge i {
  color: var(--accent);
  font-size: 1.2rem;
}

.intro-text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 18px;
}

.intro-text p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 16px;
}

.intro-points {
  margin: 24px 0 0;
  display: grid;
  gap: 14px;
}

.intro-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: var(--transition);
}

.intro-point:hover {
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.intro-point-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(232,163,23,.14);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.intro-point strong {
  display: block;
  font-size: .96rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.intro-point p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ===== 步骤 ===== */
.steps-section {
  background: linear-gradient(140deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.steps-section::before {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,163,23,.14), transparent 70%);
  top: -160px;
  right: -80px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.step-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  background: rgba(255,255,255,.1);
  transform: translateY(-6px);
  border-color: rgba(232,163,23,.45);
}

.step-num {
  font-size: 3rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--accent);
  line-height: 1;
  margin-bottom: 18px;
  display: block;
}

.step-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.step-card p {
  font-size: .9rem;
  color: rgba(255,255,255,.68);
  line-height: 1.8;
}

/* ===== 特性 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(232,163,23,.3);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 20px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--accent);
  color: var(--primary);
  transform: rotate(-6deg) scale(1.05);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 资讯卡片 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.news-thumb {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.05);
}

.news-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,26,51,.45));
}

.news-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(10,26,51,.8);
  backdrop-filter: blur(6px);
  color: var(--accent-light);
  font-size: .78rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,.18);
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: .82rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

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

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

.news-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: var(--transition);
}

.news-card:hover .news-body h3 {
  color: var(--accent-dark);
}

.news-body p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--primary);
  transition: var(--transition);
}

.news-link:hover {
  color: var(--accent-dark);
  gap: 12px;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(232,163,23,.3);
}

.faq-item.open {
  border-color: rgba(232,163,23,.5);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  text-align: left;
  transition: var(--transition);
}

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

.faq-icon {
  font-size: .85rem;
  color: var(--accent);
  transition: transform .35s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-answer-inner {
  padding: 0 26px 24px;
  font-size: .94rem;
  color: var(--text-muted);
  line-height: 1.85;
  border-top: 1px dashed var(--border);
  margin: 0 26px 0;
  padding: 16px 0 20px;
}

.faq-answer-inner p {
  margin-bottom: 8px;
}

.faq-answer-inner p:last-child {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(140deg, var(--primary-dark), var(--primary) 45%, var(--primary-light));
  color: #fff;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  opacity: .12;
}

.cta-box {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 18px;
}

.cta-box h2 span {
  color: var(--accent-light);
}

.cta-box p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.75);
  line-height: 1.85;
  margin-bottom: 36px;
}

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

.cta-note {
  margin-top: 22px;
  font-size: .86rem;
  color: rgba(255,255,255,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.cta-note i {
  color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.65);
  padding: 72px 0 0;
  font-size: .9rem;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand .logo {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.footer-brand .logo span {
  color: var(--accent);
}

.footer-brand p {
  font-size: .92rem;
  line-height: 1.85;
  color: rgba(255,255,255,.55);
  max-width: 360px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: rgba(255,255,255,.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 22px 0;
  font-size: .83rem;
  color: rgba(255,255,255,.4);
}

.footer-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-bottom i {
  color: var(--accent);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section {
    padding: 76px 0;
  }

  .intro-grid {
    gap: 40px;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    min-height: 64px;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    padding: 14px;
    max-width: none;
    display: none;
    z-index: 100;
  }

  .main-nav.open {
    display: flex;
    animation: fadeIn .25s ease;
  }

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

  .nav-item {
    justify-content: center;
    padding: 13px 18px;
    border-radius: 12px;
  }

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

  .btn-header {
    display: none;
  }

  .page-hero {
    padding: 80px 0 72px;
  }

  .hero-meta {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

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

  .intro-image img {
    height: 320px;
  }

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

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

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

  .faq-question {
    padding: 18px 20px;
    font-size: .95rem;
  }

  .faq-answer-inner {
    padding: 14px 0 18px;
  }

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

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

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

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

  .page-hero h1 {
    font-size: 1.9rem;
  }

  .hero-desc {
    font-size: 1rem;
  }
}

@media (max-width: 520px) {
  .grid-container {
    padding: 0 18px;
  }

  .section {
    padding: 52px 0;
  }

  .page-hero {
    padding: 60px 0 56px;
  }

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

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

  .hero-meta {
    flex-direction: column;
    gap: 10px;
  }

  .intro-image img {
    height: 240px;
  }

  .intro-badge {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-card {
    padding: 28px 22px;
  }

  .news-body {
    padding: 20px;
  }

  .step-card {
    padding: 26px 22px;
  }

  .logo {
    font-size: 1.1rem;
  }

  .cta-section {
    padding: 70px 0;
  }

  .footer-grid {
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}