/* roulang page: index */
:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --night: #0b1526;
  --bg: #f8fafc;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 4px 20px rgba(15,23,42,.07);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
input:focus, button:focus, a:focus { outline: 2px solid rgba(99,102,241,.4); outline-offset: 2px; }

.header-main { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.86); backdrop-filter: blur(14px); border-bottom: 1px solid #eef2f7; }
.nav-link { position: relative; padding: 6px 2px; font-size: 15px; font-weight: 500; color: #475569; transition: color .2s; }
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { content:''; position:absolute; left:0; right:0; bottom:-4px; height:2px; background:var(--primary); border-radius:2px; }
.btn-primary { display:inline-flex; align-items:center; gap:.5rem; background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; font-weight:600; font-size:15px; padding:.7rem 1.5rem; border-radius:999px; border:none; cursor:pointer; transition:all .25s; box-shadow:0 4px 16px rgba(99,102,241,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow:0 8px 24px rgba(99,102,241,.4); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { display:inline-flex; align-items:center; gap:.5rem; background:transparent; color:#fff; font-weight:600; font-size:15px; padding:.7rem 1.5rem; border-radius:999px; border:1.5px solid rgba(255,255,255,.6); cursor:pointer; transition:all .25s; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color:#fff; }
.btn-secondary { display:inline-flex; align-items:center; gap:.5rem; background:#fff; color:var(--primary); font-weight:600; font-size:15px; padding:.7rem 1.5rem; border-radius:999px; border:1.5px solid #e0e7ff; cursor:pointer; transition:all .25s; }
.btn-secondary:hover { border-color:var(--primary); background:#f5f3ff; }

.search-box { display:flex; align-items:center; gap:.5rem; background:#f1f5f9; border-radius:999px; padding:.45rem .9rem; border:1px solid transparent; transition:all .25s; }
.search-box:focus-within { background:#fff; border-color:#c7d2fe; box-shadow:0 0 0 3px rgba(99,102,241,.12); }
.search-box input { background:transparent; border:none; outline:none; font-size:14px; color:var(--text); width:150px; }
.search-box .fa { color:var(--muted); font-size:14px; }

.card { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); border:1px solid #f1f5f9; transition:all .3s ease; }
.card-hover:hover { transform: translateY(-4px); box-shadow:0 12px 40px rgba(15,23,42,.12); }

.hero-section { position:relative; background:url('/assets/images/backpic/back-1.png') center/cover no-repeat; color:#fff; overflow:hidden; }
.hero-overlay { position:absolute; inset:0; background:linear-gradient(120deg, rgba(11,21,38,.95) 0%, rgba(15,23,42,.82) 45%, rgba(99,102,241,.35) 100%); }

.info-list-item { display:flex; align-items:center; justify-content:space-between; gap:.75rem; padding:.9rem 1rem; border-bottom:1px solid #f1f5f9; transition:background .2s; }
.info-list-item:last-child { border-bottom:none; }
.info-list-item:hover { background:#f8fafc; }
.info-tag { flex-shrink:0; font-size:12px; font-weight:600; color:var(--primary); background:#eef2ff; padding:3px 10px; border-radius:999px; }
.info-title { flex:1; font-size:14px; color:var(--text); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.info-date { flex-shrink:0; font-size:13px; color:#94a3b8; }

.faq-item { background:#fff; border-radius:12px; border:1px solid #e9eef5; overflow:hidden; margin-bottom:.75rem; transition:border-color .2s; }
.faq-item.open { border-color:#c7d2fe; }
.faq-q { display:flex; justify-content:space-between; align-items:center; padding:1rem 1.25rem; cursor:pointer; font-weight:600; font-size:15px; color:var(--text); }
.faq-q .fa { color:var(--muted); transition:transform .3s; }
.faq-item.open .fa { transform:rotate(180deg); color:var(--primary); }
.faq-a { display:none; padding:0 1.25rem 1.1rem; font-size:14px; color:var(--muted); line-height:1.7; }
.faq-item.open .faq-a { display:block; }

.footer-bg { background:var(--night); color:#94a3b8; }
.footer-link { color:#94a3b8; font-size:14px; transition:color .2s; }
.footer-link:hover { color:#e2e8f0; }

.hero-card { background:rgba(255,255,255,.1); backdrop-filter:blur(18px); border-radius:20px; border:1px solid rgba(255,255,255,.18); box-shadow:0 20px 60px rgba(0,0,0,.25); }

.section-title-center { text-align:center; }
.section-title-center h2 { font-size:32px; font-weight:800; color:var(--text); letter-spacing:-.5px; }
.section-title-center p { font-size:16px; color:var(--muted); max-width:560px; margin:0 auto; }
@media (max-width:768px){
  .section-title-center h2 { font-size:26px; }
}

.mobile-menu { display:none; }
.mobile-menu.open { display:block; position:fixed; top:64px; left:0; right:0; background:#fff; border-bottom:1px solid #eef2f7; padding:1rem; z-index:49; box-shadow:0 12px 32px rgba(15,23,42,.1); }
.mobile-menu a { display:block; padding:.75rem 1rem; border-radius:10px; font-size:15px; font-weight:500; color:var(--text); }
.mobile-menu a:hover { background:#f8fafc; color:var(--primary); }
.mobile-menu a.active { background:#eef2ff; color:var(--primary); }

@media (max-width:1024px){
  .desktop-nav { display:none; }
  .search-box input { width:100px; }
}
@media (max-width:520px){
  .btn-primary { padding:.55rem 1.1rem; font-size:14px; }
  .hero-card { padding:1rem !important; }
  .info-title { font-size:13px; }
}

/* roulang page: category1 */
:root {
    --brand-50: #eef2ff;
    --brand-100: #e0e7ff;
    --brand-500: #6366f1;
    --brand-600: #4f46e5;
    --brand-700: #4338ca;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --radius-lg: 0.75rem;
    --radius-xl: 1.25rem;
    --shadow-card: 0 8px 30px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 18px 40px rgba(79, 70, 229, 0.12);
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #fff;
    color: var(--slate-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; }
  button { cursor: pointer; font-family: inherit; }
  input:focus { outline: none; }

  .container { width: 100%; max-width: 1280px; margin: 0 auto; }

  /* ========== 导航 ========== */
  .header-main {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    transition: box-shadow .3s ease;
  }
  .header-main.scrolled { box-shadow: 0 6px 28px rgba(15, 23, 42, 0.07); }

  .nav-link {
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--slate-600);
    padding: 0.45rem 0.95rem;
    border-radius: 0.6rem;
    transition: background .2s, color .2s;
  }
  .nav-link:hover { color: var(--brand-600); background: var(--brand-50); }
  .nav-link.active { color: var(--brand-700); background: var(--brand-50); font-weight: 600; }

  .search-box {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--slate-100);
    border: 1px solid var(--slate-200);
    border-radius: 9999px;
    padding: 0.4rem 1.1rem;
    transition: border .2s, box-shadow .2s;
    height: 40px;
  }
  .search-box:focus-within {
    border-color: var(--brand-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  }
  .search-box i { color: var(--slate-400); font-size: 0.875rem; }
  .search-box input {
    background: transparent;
    border: none;
    outline: none;
    font-size: 0.875rem;
    width: 140px;
    color: var(--slate-700);
  }
  .search-box input::placeholder { color: var(--slate-400); }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--brand-600), #7c3aed);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.65rem 1.3rem;
    border-radius: 9999px;
    transition: transform .2s, box-shadow .2s;
    box-shadow: 0 4px 18px rgba(79, 70, 229, 0.32);
    white-space: nowrap;
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(79, 70, 229, 0.4);
  }
  .btn-primary:focus-visible, .nav-link:focus-visible, .btn-outline:focus-visible {
    outline: 3px solid rgba(99, 102, 241, 0.45);
    outline-offset: 2px;
  }

  .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #fff;
    border: 1.5px solid var(--slate-200);
    color: var(--slate-700);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.6rem 1.3rem;
    border-radius: 9999px;
    transition: border .2s, color .2s, transform .2s, box-shadow .2s;
  }
  .btn-outline:hover {
    border-color: var(--brand-500);
    color: var(--brand-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  }

  /* 移动端导航 */
  .mobile-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--slate-100);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.1);
    padding: 0.5rem 1.25rem 1rem;
    z-index: 40;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform .28s ease, opacity .28s ease, visibility .28s;
    border-radius: 0 0 1rem 1rem;
  }
  .mobile-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .mobile-nav a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 0.9rem;
    border-radius: 0.6rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--slate-700);
    transition: background .2s, color .2s;
  }
  .mobile-nav a:hover { background: var(--brand-50); color: var(--brand-600); }
  .mobile-nav a.active { background: var(--brand-50); color: var(--brand-700); font-weight: 600; }

  /* ========== Hero Banner ========== */
  .page-hero {
    position: relative;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 120px 0 80px;
    overflow: hidden;
  }
  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 27, 75, 0.85) 48%, rgba(67, 56, 202, 0.55) 100%);
  }
  .page-hero::after {
    content: '';
    position: absolute;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.25) 0%, transparent 70%);
    top: -120px;
    right: -80px;
    pointer-events: none;
  }
  .page-hero .hero-content {
    position: relative;
    z-index: 1;
  }

  .breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    padding: 0.4rem 1.2rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.14);
  }
  .breadcrumb a:hover { color: #fff; }
  .breadcrumb .sep { color: rgba(255, 255, 255, 0.4); font-size: 0.7rem; }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.18);
    border: 1px solid rgba(129, 140, 248, 0.35);
    color: #c7d2fe;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    backdrop-filter: blur(4px);
  }

  /* ========== 卡片 ========== */
  .card-modern {
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    padding: 1.75rem;
    transition: transform .25s ease, box-shadow .25s ease, border .25s;
    height: 100%;
  }
  .card-modern:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(99, 102, 241, 0.3);
  }

  .icon-badge {
    width: 56px;
    height: 56px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    background: linear-gradient(135deg, var(--brand-600), #7c3aed);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.28);
  }

  /* 步骤 */
  .step-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem 1.25rem;
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: 1rem;
    box-shadow: var(--shadow-card);
    transition: transform .25s, box-shadow .25s;
  }
  .step-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-hover);
  }
  .step-num {
    width: 44px;
    height: 44px;
    border-radius: 0.9rem;
    background: linear-gradient(135deg, var(--brand-600), #7c3aed);
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
  }

  /* 兼容性列表 */
  .compat-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.85rem;
  }
  .compat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.1rem;
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: 0.85rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--slate-700);
    transition: background .2s, border .2s, transform .2s;
  }
  .compat-item:hover {
    background: var(--brand-50);
    border-color: rgba(99, 102, 241, 0.35);
    transform: translateY(-2px);
  }
  .compat-item i {
    color: var(--brand-600);
    width: 20px;
    text-align: center;
  }

  /* ========== FAQ ========== */
  .faq-item {
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: 1rem;
    margin-bottom: 0.85rem;
    overflow: hidden;
    transition: border .22s, box-shadow .22s;
  }
  .faq-item.open {
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 6px 24px rgba(79, 70, 229, 0.1);
  }
  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.2rem 1.4rem;
    background: transparent;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--slate-800);
    text-align: left;
    transition: color .2s;
  }
  .faq-question:hover { color: var(--brand-600); }
  .faq-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--slate-500);
    transition: background .2s, color .2s, transform .3s;
    flex-shrink: 0;
  }
  .faq-item.open .faq-icon {
    background: var(--brand-600);
    color: #fff;
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  .faq-answer-inner {
    padding: 0 1.4rem 1.4rem;
    color: var(--slate-500);
    font-size: 0.93rem;
    line-height: 1.75;
  }

  /* ========== CTA ========== */
  .cta-section {
    position: relative;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    border-radius: 1.5rem;
    overflow: hidden;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, rgba(15, 23, 42, 0.95) 0%, rgba(49, 46, 129, 0.92) 60%, rgba(67, 56, 202, 0.7) 100%);
  }
  .cta-section .cta-inner { position: relative; z-index: 1; }

  /* ========== 页脚 ========== */
  .footer-bg {
    background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 100%);
    color: rgba(255, 255, 255, 0.7);
  }
  .footer-link {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
    transition: color .2s, padding-left .2s;
    display: inline-block;
  }
  .footer-link:hover {
    color: #a5b4fc;
    padding-left: 4px;
  }

  /* ========== 页头板块通用 ========== */
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand-600);
    background: var(--brand-50);
    padding: 0.35rem 1rem;
    border-radius: 9999px;
  }

  .stat-card {
    background: #fff;
    border: 1px solid var(--slate-200);
    border-radius: 1.25rem;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease;
  }
  .stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }

  /* 响应式 */
  @media (max-width: 640px) {
    .page-hero { padding: 90px 0 60px; }
    .search-box { display: none !important; }
    .card-modern { padding: 1.25rem; }
    .faq-question { padding: 1.1rem 1.2rem; }
  }

/* roulang page: article */
:root {
  --brand-50: #eef4ff;
  --brand-100: #d9e6ff;
  --brand-500: #3b82f6;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  --purple-500: #8b5cf6;
  --ink-900: #0f172a;
  --ink-600: #475569;
  --ink-400: #94a3b8;
  --soft: #f8fafc;
  --line: #e2e8f0;
  --radius: 1rem;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.1);
  --shadow-md: 0 4px 14px rgba(15,23,42,.08);
  --shadow-lg: 0 16px 32px rgba(15,23,42,.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--soft);
  color: var(--ink-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button,
input,
select,
textarea {
  font-family: inherit;
}

.header-main {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226,232,240,.8);
}

.nav-link {
  position: relative;
  font-size: .925rem;
  font-weight: 600;
  color: var(--ink-600);
  padding: .35rem 0;
  transition: color .2s;
}

.nav-link:hover {
  color: var(--brand-600);
}

.nav-link.active {
  color: var(--brand-700);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--purple-500));
}

.search-box {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .5rem .95rem;
  gap: .5rem;
  color: var(--ink-400);
  transition: border-color .2s, box-shadow .2s, background .2s;
}

.search-box:focus-within {
  border-color: var(--brand-500);
  box-shadow: 0 0 0 4px rgba(59,130,246,.12);
  background: #fff;
}

.search-box input {
  background: transparent;
  border: none;
  outline: none;
  font-size: .875rem;
  color: var(--ink-900);
  min-width: 140px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  padding: .6rem 1.1rem;
  border-radius: .75rem;
  box-shadow: 0 4px 12px rgba(59,130,246,.28);
  transition: transform .2s, box-shadow .2s;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(59,130,246,.36);
  color: #fff;
}

.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(59,130,246,.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-600);
  font-weight: 600;
  font-size: .9rem;
  padding: .6rem 1.1rem;
  border-radius: .75rem;
  transition: all .2s;
  white-space: nowrap;
}

.btn-ghost:hover {
  border-color: var(--brand-500);
  color: var(--brand-600);
  background: #fff;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(59,130,246,.35);
}

.card-cover img {
  transition: transform .4s ease;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: var(--brand-50);
  color: var(--brand-700);
  font-size: .78rem;
  font-weight: 600;
  padding: .22rem .65rem;
  border-radius: 999px;
  border: 1px solid rgba(59,130,246,.16);
}

.section {
  padding: 4.5rem 0;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.section-subtitle {
  color: var(--ink-600);
  margin-top: .5rem;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  border: none;
}

.article-body {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-600);
}

.article-body h1,
.article-body h2,
.article-body h3 {
  color: var(--ink-900);
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: .6rem;
}

.article-body p {
  margin-bottom: 1rem;
}

.article-body ul {
  list-style: disc;
  padding-left: 1.3rem;
  margin-bottom: 1rem;
}

.article-body ol {
  list-style: decimal;
  padding-left: 1.3rem;
  margin-bottom: 1rem;
}

.article-body a {
  color: var(--brand-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  border-left: 3px solid var(--brand-500);
  background: var(--soft);
  padding: .8rem 1rem;
  border-radius: .5rem;
  margin: 1rem 0;
  color: var(--ink-600);
}

.article-body img {
  border-radius: .75rem;
  margin: 1rem 0;
}

.footer-bg {
  background: linear-gradient(135deg, #0f172a, #1e1b4b);
}

.footer-link {
  color: #cbd5e1;
  font-size: .9rem;
  transition: color .2s, padding-left .2s;
}

.footer-link:hover {
  color: #fff;
  padding-left: 2px;
}

.mobile-nav-link {
  display: block;
  padding: .7rem .5rem;
  font-weight: 600;
  color: var(--ink-600);
  border-bottom: 1px solid var(--soft);
  transition: color .2s, background .2s;
}

.mobile-nav-link:hover {
  color: var(--brand-600);
  background: var(--soft);
}

.step-number {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--brand-500), var(--purple-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: .9rem;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s, box-shadow .2s;
}

.faq-item[open] {
  border-color: rgba(59,130,246,.35);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink-900);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

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

.faq-item summary i {
  transition: transform .2s;
  color: var(--brand-500);
}

.faq-item[open] summary i {
  transform: rotate(180deg);
}

.faq-item p {
  margin-top: .75rem;
  color: var(--ink-600);
  font-size: .95rem;
  line-height: 1.75;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brand-500);
  outline-offset: 2px;
  border-radius: .25rem;
}

@media (max-width: 640px) {
  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .article-body {
    font-size: .95rem;
  }
}

/* roulang page: category2 */
:root {
            --brand-50: #f5f3ff;
            --brand-100: #ede9fe;
            --brand-500: #8b5cf6;
            --brand-600: #7c3aed;
            --brand-700: #6d28d9;
            --text-main: #1e1b2e;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --shadow-sm: 0 1px 2px rgba(30, 27, 46, .06), 0 1px 3px rgba(30, 27, 46, .08);
            --shadow-md: 0 4px 12px rgba(30, 27, 46, .08), 0 2px 4px rgba(30, 27, 46, .04);
            --shadow-lg: 0 12px 28px rgba(30, 27, 46, .10), 0 4px 8px rgba(30, 27, 46, .06);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background-color: #fafafc;
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        .header-main {
            background: rgba(255, 255, 255, .82);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, .7);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow .3s ease;
        }

        .header-main.scrolled {
            box-shadow: 0 4px 18px rgba(30, 27, 46, .06);
        }

        .nav-link {
            font-size: .9rem;
            font-weight: 600;
            color: #475569;
            text-decoration: none;
            padding: .4rem 0;
            border-bottom: 2px solid transparent;
            transition: color .2s, border-color .2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--brand-600);
        }

        .nav-link.active {
            color: var(--brand-700);
            border-bottom-color: var(--brand-600);
        }

        .search-box {
            align-items: center;
            background: #f1f5f9;
            border-radius: 999px;
            padding: .45rem .9rem;
            gap: .5rem;
            border: 1px solid transparent;
            transition: border-color .2s, background .2s, box-shadow .2s;
            width: 190px;
        }

        .search-box:focus-within {
            border-color: var(--brand-300);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(139, 92, 246, .12);
        }

        .search-box i {
            font-size: .85rem;
            color: #94a3b8;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            font-size: .85rem;
            color: var(--text-main);
            width: 100%;
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            background: linear-gradient(135deg, #7c3aed, #8b5cf6);
            color: #fff;
            font-weight: 600;
            font-size: .88rem;
            border-radius: 999px;
            padding: .6rem 1.3rem;
            text-decoration: none;
            transition: transform .2s, box-shadow .2s, filter .2s;
            box-shadow: 0 4px 12px rgba(124, 58, 237, .28);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(124, 58, 237, .35);
            filter: brightness(1.05);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(124, 58, 237, .25);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            background: transparent;
            border: 1.5px solid rgba(139, 92, 246, .35);
            color: var(--brand-700);
            font-weight: 600;
            font-size: .88rem;
            border-radius: 999px;
            padding: .6rem 1.3rem;
            text-decoration: none;
            transition: background .2s, border-color .2s, transform .2s;
        }

        .btn-ghost:hover {
            background: var(--brand-50);
            border-color: var(--brand-500);
            transform: translateY(-2px);
        }

        .mobile-menu {
            background: #fff;
            border-top: 1px solid var(--border-color);
            padding: 1rem 1.5rem 1.5rem;
            box-shadow: 0 12px 24px rgba(30, 27, 46, .08);
        }

        .mobile-menu a {
            display: block;
            padding: .7rem .6rem;
            border-radius: .5rem;
            color: #475569;
            font-weight: 600;
            font-size: .95rem;
            text-decoration: none;
            transition: background .2s, color .2s;
        }

        .mobile-menu a:hover {
            background: var(--brand-50);
            color: var(--brand-700);
        }

        .mobile-menu a.active {
            background: var(--brand-50);
            color: var(--brand-700);
            border-left: 3px solid var(--brand-600);
        }

        .category-hero {
            background-image: linear-gradient(to bottom, rgba(30, 27, 46, .78), rgba(30, 27, 46, .85)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, .35), transparent 60%);
            border-radius: 50%;
        }

        .category-hero .badge {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(139, 92, 246, .22);
            border: 1px solid rgba(196, 181, 253, .35);
            color: #ddd6fe;
            font-size: .85rem;
            font-weight: 600;
            border-radius: 999px;
            padding: .35rem .85rem;
            backdrop-filter: blur(4px);
        }

        .category-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -.02em;
            margin-top: 1.2rem;
            margin-bottom: .8rem;
        }

        .category-hero p {
            color: #cbd5e1;
            font-size: 1.05rem;
            max-width: 560px;
            margin-bottom: 2rem;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
            max-width: 460px;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, .12);
        }

        .hero-stats strong {
            font-size: 1.5rem;
            font-weight: 800;
            display: block;
            background: linear-gradient(135deg, #c4b5fd, #f5f3ff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-stats span {
            font-size: .82rem;
            color: #94a3b8;
            margin-top: .2rem;
            display: block;
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: var(--brand-50);
            border: 1px solid var(--brand-100);
            color: var(--brand-700);
            font-size: .8rem;
            font-weight: 600;
            border-radius: 999px;
            padding: .3rem .8rem;
            margin-bottom: 1rem;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -.02em;
            margin-bottom: .8rem;
            color: #1e1b2e;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 640px;
            line-height: 1.7;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.6rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s, border-color .25s;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 100px;
            height: 100px;
            background: radial-gradient(circle, rgba(139, 92, 246, .10), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: .6rem;
            color: #1e1b2e;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .module-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
            margin-bottom: 3rem;
        }

        .module-grid.reverse {
            direction: rtl;
        }

        .module-grid.reverse>* {
            direction: ltr;
        }

        .module-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

        .module-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform .4s;
        }

        .module-image:hover img {
            transform: scale(1.02);
        }

        .module-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: .8rem;
            color: #1e1b2e;
        }

        .module-content p {
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 1.2rem;
        }

        .module-list {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }

        .module-list li {
            display: flex;
            gap: .7rem;
            align-items: flex-start;
            padding: .5rem 0;
            color: #334155;
            font-size: .95rem;
        }

        .module-list li i {
            color: var(--brand-600);
            margin-top: .2rem;
            font-size: .85rem;
        }

        .process-step {
            position: relative;
            padding: 1.8rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s;
            height: 100%;
        }

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

        .process-num {
            font-size: .85rem;
            font-weight: 700;
            color: var(--brand-600);
            background: var(--brand-50);
            border-radius: 999px;
            padding: .2rem .75rem;
            display: inline-block;
            margin-bottom: 1rem;
        }

        .process-step h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: .5rem;
            color: #1e1b2e;
        }

        .process-step p {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.6;
            margin: 0;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .compare-card.recommended {
            border-color: var(--brand-300);
            box-shadow: 0 8px 24px rgba(139, 92, 246, .12);
            position: relative;
        }

        .compare-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--brand-600);
            color: #fff;
            font-size: .7rem;
            font-weight: 700;
            border-radius: 999px;
            padding: .25rem .7rem;
        }

        .compare-card .compare-head {
            padding: 1.5rem 1.8rem;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-card .compare-head h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0;
        }

        .compare-card .compare-body {
            padding: 1.5rem 1.8rem;
        }

        .compare-card .compare-body ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .compare-card .compare-body ul li {
            padding: .5rem 0;
            color: #334155;
            font-size: .9rem;
            display: flex;
            gap: .6rem;
            align-items: center;
        }

        .compare-card .compare-body ul li i {
            color: var(--brand-600);
            font-size: .85rem;
            width: 16px;
            text-align: center;
        }

        .compare-card.other .compare-body ul li i {
            color: #94a3b8;
        }

        .content-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform .25s, box-shadow .25s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .content-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .content-card-body {
            padding: 1.4rem 1.5rem 1.6rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #1e1b2e;
            margin-bottom: .5rem;
            line-height: 1.45;
        }

        .content-card-body p {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.65;
            flex: 1;
            margin-bottom: 1rem;
        }

        .content-card-link {
            color: var(--brand-600);
            font-size: .88rem;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            transition: gap .2s, color .2s;
        }

        .content-card-link:hover {
            gap: .7rem;
            color: var(--brand-700);
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.4rem;
            margin-bottom: 1rem;
            transition: box-shadow .2s, border-color .2s;
        }

        .faq-item:hover {
            border-color: var(--brand-200);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            font-size: .95rem;
            font-weight: 700;
            color: #1e1b2e;
            margin-bottom: .4rem;
        }

        .faq-answer {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.7;
        }

        .cta-section {
            background: linear-gradient(135deg, #1e1b2e 0%, #2d2657 50%, #4c1d95 100%);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(139, 92, 246, .35), transparent 60%);
            border-radius: 50%;
        }

        .cta-section h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.9rem);
            font-weight: 800;
            margin-bottom: .6rem;
        }

        .cta-section p {
            color: #cbd5e1;
            margin-bottom: 1.8rem;
            max-width: 540px;
        }

        .footer-bg {
            background: #141020;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-link {
            color: #94a3b8;
            text-decoration: none;
            font-size: .9rem;
            transition: color .2s, padding-left .2s;
            padding-left: 0;
        }

        .footer-link:hover {
            color: #c4b5fd;
            padding-left: 4px;
        }

        .table-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .table-card table {
            width: 100%;
            border-collapse: collapse;
            font-size: .9rem;
        }

        .table-card th,
        .table-card td {
            padding: .9rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #f1f5f9;
        }

        .table-card th {
            background: #fafafc;
            font-weight: 700;
            color: #334155;
            white-space: nowrap;
        }

        .table-card td {
            color: #475569;
        }

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

        .table-card .check {
            color: var(--brand-600);
        }

        .table-card .minus {
            color: #cbd5e1;
        }

        .pill {
            display: inline-block;
            padding: .35rem .75rem;
            border-radius: 999px;
            font-size: .75rem;
            font-weight: 600;
            background: #f1f5f9;
            color: #475569;
            margin-right: .4rem;
        }

        .pill-brand {
            background: var(--brand-50);
            color: var(--brand-700);
            border: 1px solid var(--brand-100);
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none !important;
            }
            .module-grid {
                grid-template-columns: 1fr;
            }
            .module-grid.reverse {
                direction: ltr;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .hero-stats {
                grid-template-columns: 1fr;
                gap: .5rem;
                max-width: 100%;
            }
            .hero-stats strong {
                font-size: 1.2rem;
            }
            .btn-primary,
            .btn-ghost {
                width: 100%;
                justify-content: center;
                margin-bottom: .6rem;
            }
            .hero-actions {
                display: flex;
                flex-direction: column;
            }
            .cta-section {
                padding: 2rem 1.5rem;
            }
            .compare-card .compare-head,
            .compare-card .compare-body {
                padding: 1.2rem;
            }
            .table-card th,
            .table-card td {
                padding: .7rem .8rem;
                font-size: .8rem;
            }
            .search-box {
                display: none !important;
            }
        }

        @media (max-width: 520px) {
            .header-main .btn-primary {
                display: none !important;
            }
        }

/* roulang page: category3 */
:root {
            --brand-50: #eef2ff;
            --brand-500: #6366f1;
            --brand-600: #4f46e5;
            --brand-700: #4338ca;
            --bg-body: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 1rem;
            --shadow-card: 0 4px 24px rgba(94, 112, 150, 0.08);
            --shadow-hover: 0 16px 40px rgba(79, 70, 229, 0.14);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
        }

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

        a {
            text-decoration: none;
            transition: color .2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input,
        button {
            outline: none;
        }

        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }

        .desktop-nav .nav-link {
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            padding: 0.45rem 0.85rem;
            border-radius: 999px;
            transition: all .2s ease;
        }

        .desktop-nav .nav-link:hover {
            color: var(--brand-600);
            background: var(--brand-50);
        }

        .desktop-nav .nav-link.active {
            color: var(--brand-700);
            background: var(--brand-50);
            font-weight: 600;
        }

        .search-box {
            align-items: center;
            gap: 0.5rem;
            background: #f1f5f9;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 0.4rem 0.85rem;
            color: #94a3b8;
            transition: all .2s ease;
        }

        .search-box:focus-within {
            background: #ffffff;
            border-color: var(--brand-300);
            box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
        }

        .search-box input {
            background: transparent;
            border: none;
            font-size: 0.875rem;
            width: 130px;
            color: #334155;
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .search-box input:focus {
            outline: none;
            width: 150px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--brand-500), #8b5cf6);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            transition: all .25s ease;
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(99, 102, 241, 0.4);
            outline-offset: 2px;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, var(--brand-500), #8b5cf6);
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            padding: 0.85rem 2rem;
            border-radius: 999px;
            transition: all .25s ease;
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
        }

        .btn-primary-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(99, 102, 241, 0.42);
        }

        .btn-secondary-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            padding: 0.85rem 2rem;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            transition: all .25s ease;
        }

        .btn-secondary-lg:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.55);
            transform: translateY(-2px);
        }

        .mobile-menu-wrapper {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0.5rem 1rem 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
            transform: translateY(-120%);
            visibility: hidden;
            transition: all .3s ease;
            z-index: 49;
        }

        .mobile-menu-wrapper.open {
            transform: translateY(0);
            visibility: visible;
        }

        .mobile-nav-link {
            display: block;
            padding: 0.65rem 0.75rem;
            border-radius: 0.65rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: #334155;
            transition: all .2s;
        }

        .mobile-nav-link:hover {
            background: var(--brand-50);
            color: var(--brand-700);
        }

        .mobile-nav-link.active {
            background: var(--brand-50);
            color: var(--brand-700);
            font-weight: 600;
        }

        .mobile-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 0.6rem;
            background: linear-gradient(135deg, var(--brand-500), #8b5cf6);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.7rem 1rem;
            border-radius: 999px;
        }

        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(15, 23, 42, 0.78), rgba(30, 27, 75, 0.72));
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            margin-bottom: 1.2rem;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--brand-50);
            color: var(--brand-700);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            padding: 0.35rem 1rem;
            border-radius: 999px;
            margin-bottom: 1rem;
        }

        .section-badge .badge-icon {
            font-size: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #0f172a;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 0.85rem;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .safe-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem 1.4rem;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .safe-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(99, 102, 241, 0.3);
        }

        .safe-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-50), #ede9fe);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .safe-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
        }

        .safe-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .safe-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.825rem;
            font-weight: 600;
            color: var(--brand-600);
            margin-top: 1rem;
        }

        .safe-card-link i {
            transition: transform .2s ease;
        }

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

        .step-item {
            display: flex;
            gap: 1rem;
            padding: 1.1rem 0;
            border-bottom: 1px solid #f1f5f9;
        }

        .step-item:last-child {
            border-bottom: none;
        }

        .step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-500), #8b5cf6);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.25rem;
        }

        .step-item p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 0.5rem;
        }

        .stat-num {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
            background: linear-gradient(120deg, #c7d2fe, #a5b4fc, #f0abfc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.85rem;
            color: #94a3b8;
            margin-top: 0.4rem;
            font-weight: 500;
        }

        .warn-item {
            display: flex;
            gap: 1rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            padding: 1.1rem 1.25rem;
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
            align-items: flex-start;
        }

        .warn-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .warn-icon {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: #fef3c7;
            color: #d97706;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }

        .warn-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.25rem;
        }

        .warn-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            box-shadow: var(--shadow-card);
            margin-bottom: 0.85rem;
            overflow: hidden;
            transition: box-shadow .25s ease;
        }

        .faq-item.active {
            box-shadow: var(--shadow-hover);
            border-color: rgba(99, 102, 241, 0.25);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            background: transparent;
            border: none;
            padding: 1.1rem 1.3rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #0f172a;
            text-align: left;
        }

        .faq-q i {
            font-size: 0.75rem;
            color: #94a3b8;
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--brand-500);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-a p {
            padding: 0 1.3rem 1.2rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .cta-box {
            background: linear-gradient(135deg, #312e81, #4f46e5 55%, #7c3aed);
            border-radius: 2rem;
            padding: 3.5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(49, 46, 129, 0.3);
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover;
            opacity: 0.15;
        }

        .cta-box>* {
            position: relative;
        }

        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }

        .cta-box p {
            color: #c7d2fe;
            margin-bottom: 1.5rem;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: #fff;
            color: #4338ca;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.85rem 2rem;
            border-radius: 999px;
            transition: all .25s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(0, 0, 0, 0.2);
        }

        .footer-bg {
            background: #0f172a;
        }

        .footer-link {
            color: #94a3b8;
            font-size: 0.875rem;
            transition: color .2s ease;
        }

        .footer-link:hover {
            color: #a5b4fc;
        }

        @media (max-width: 1024px) {
            .section-title {
                font-size: 1.65rem;
            }
            .stat-num {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .btn-primary-lg,
            .btn-secondary-lg {
                width: 100%;
                justify-content: center;
                padding: 0.8rem 1.4rem;
                font-size: 0.95rem;
            }
            .stat-num {
                font-size: 1.3rem;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .stat-num {
                font-size: 1.15rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .cta-box {
                padding: 2.5rem 1.2rem;
                border-radius: 1.4rem;
            }
        }

        @media (min-width: 1025px) {
            .mobile-menu-wrapper {
                display: none;
            }
        }