/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --primary: #6C3EFF;
  --primary-warm: #8A5AFF;
  --primary-deep: #4622C0;
  --accent: #FF8A00;
  --accent-warm: #FFAB4A;
  --bg: #F7F8FC;
  --bg-deep: #151A2E;
  --bg-dark: #1C2138;
  --white: #FFFFFF;
  --text: #212734;
  --text-soft: #596379;
  --text-light: #8B94A8;
  --line: #E6E9F2;
  --line-soft: #F0F2F8;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 999px;
  --shadow-xs: 0 1px 4px rgba(20,24,40,0.04);
  --shadow-sm: 0 4px 16px rgba(20,24,40,0.06);
  --shadow: 0 12px 36px rgba(20,24,40,0.10);
  --shadow-lg: 0 24px 60px rgba(20,24,40,0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
  --section-space: 88px;
  --nav-height: 64px;
}

/* ===== Base Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; border: none; background: none; cursor: pointer; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }

/* ===== Container ===== */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Dock Navigation ===== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 20px;
  margin-top: 16px;
  pointer-events: none;
}
.nav-dock {
  pointer-events: auto;
  max-width: 1080px;
  margin: 0 auto;
  background: rgba(21, 26, 46, 0.82);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-radius: var(--radius-full);
  padding: 10px 14px 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 12px 36px rgba(10, 14, 30, 0.35);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
.brand-wrap { display: flex; align-items: center; min-width: 0; }
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.88; }
.logo-icon {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), #FF5E3A);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 14px rgba(255, 138, 0, 0.35);
}
.logo-text { overflow: hidden; text-overflow: ellipsis; }
.nav-menu { display: flex; align-items: center; gap: 2px; flex: 1; justify-content: center; }
.nav-menu a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  color: rgba(255,255,255,0.72);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
  cursor: pointer;
}
.nav-menu a i { font-size: 13px; opacity: 0.8; }
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-menu a.active { color: #fff; background: rgba(255,255,255,0.14); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08); }
.nav-cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-search {
  display: none;
  align-items: center;
  background: rgba(255,255,255,0.10);
  border-radius: var(--radius-full);
  padding: 0 6px 0 14px;
  height: 38px;
  gap: 6px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  width: 110px;
}
.nav-search input::placeholder { color: rgba(255,255,255,0.45); }
.nav-search button { color: rgba(255,255,255,0.65); padding: 6px 8px; }
.nav-search button:hover { color: #fff; }
.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(135deg, var(--primary), #9A6BFF);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(108, 62, 255, 0.35);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(108, 62, 255, 0.45); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; border-radius: 10px; }
.nav-toggle span { width: 22px; height: 2px; background: rgba(255,255,255,0.85); border-radius: 2px; transition: var(--transition); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #FF5E3A);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 138, 0, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(255, 138, 0, 0.45); }
.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.35); transform: translateY(-3px); }
.btn-dark {
  background: var(--bg-deep);
  color: #fff;
  box-shadow: 0 6px 20px rgba(21, 26, 46, 0.2);
}
.btn-dark:hover { background: #232A48; transform: translateY(-3px); }

/* ===== Section General ===== */
.section { padding: var(--section-space) 0; }
.section-white { background: var(--white); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(108, 62, 255, 0.08);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 14px;
}
.section-tag.light { background: rgba(255,255,255,0.12); color: #fff; }
.section-head h2 { font-size: 36px; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { color: var(--text-soft); font-size: 16px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 150px 0 110px;
  background: linear-gradient(135deg, #151A2E 0%, #1C1E3A 45%, #2B1D4E 100%);
  overflow: hidden;
  border-radius: 0 0 40px 40px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center 30%;
  opacity: 0.30;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(21, 26, 46, 0.88) 30%, rgba(21, 26, 46, 0.65) 75%, rgba(43, 29, 78, 0.7) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 780px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-full);
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.hero-badge i { color: var(--accent-warm); }
.hero h1 {
  color: #fff;
  font-size: 54px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  font-weight: 800;
}
.hero-sub {
  color: rgba(255,255,255,0.75);
  font-size: 18px;
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-bottom: 52px; }
.hero-trust {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 32px;
}
.trust-item { display: flex; flex-direction: column; gap: 4px; }
.trust-item strong { color: #fff; font-size: 26px; font-weight: 700; letter-spacing: -0.01em; }
.trust-item span { color: rgba(255,255,255,0.55); font-size: 13px; }

/* ===== Categories ===== */
.categories { padding: var(--section-space) 0 80px; background: var(--bg); }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.category-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: rgba(108, 62, 255, 0.15); }
.category-img { position: relative; height: 180px; overflow: hidden; }
.category-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .category-img img { transform: scale(1.05); }
.category-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(15, 18, 30, 0.35)); }
.cat-badge {
  position: absolute;
  bottom: 14px;
  left: 18px;
  z-index: 2;
  padding: 5px 14px;
  background: rgba(255,255,255,0.92);
  color: var(--text);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}
.category-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.category-body h3 { font-size: 20px; margin-bottom: 8px; }
.category-body p { color: var(--text-soft); font-size: 14px; line-height: 1.65; margin-bottom: 20px; flex: 1; }
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.cat-link i { transition: transform 0.3s; }
.cat-link:hover { color: var(--primary-deep); }
.cat-link:hover i { transform: translateX(4px); }

/* ===== Latest News ===== */
.latest { padding: var(--section-space) 0; background: var(--white); }
.latest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.latest-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.latest-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); border-color: rgba(108, 62, 255, 0.12); }
.latest-thumb { height: 160px; overflow: hidden; background: var(--bg-dark); }
.latest-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.latest-card:hover .latest-thumb img { transform: scale(1.04); }
.latest-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.latest-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.latest-tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(108, 62, 255, 0.08);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}
.latest-date { color: var(--text-light); font-size: 12px; display: inline-flex; align-items: center; gap: 5px; }
.latest-body h3 { font-size: 16px; line-height: 1.4; margin-bottom: 8px; }
.latest-body h3 a { transition: color 0.2s; }
.latest-body h3 a:hover { color: var(--primary); }
.latest-desc { color: var(--text-soft); font-size: 13px; line-height: 1.6; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.latest-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}
.latest-link:hover { color: var(--primary); }
.latest-link i { font-size: 12px; transition: transform 0.3s; }
.latest-link:hover i { transform: translateX(4px); }
.empty-list {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px dashed var(--line);
  color: var(--text-light);
  font-size: 15px;
}

/* ===== Features ===== */
.features { padding: var(--section-space) 0; background: var(--bg); }
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feat-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-sm); }
.feat-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, rgba(108,62,255,0.10), rgba(108,62,255,0.04));
  color: var(--primary);
}
.feat-card h3 { font-size: 18px; margin-bottom: 8px; }
.feat-card p { color: var(--text-soft); font-size: 13.5px; line-height: 1.65; }

/* ===== Stats Band ===== */
.stats-band {
  position: relative;
  padding: 80px 0;
  background: var(--bg-deep);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  overflow: hidden;
}
.stats-band::before { content: ''; position: absolute; inset: 0; background: rgba(21, 26, 46, 0.85); }
.stats-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; color: #fff; }
.stat-number { font-size: 46px; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; margin-bottom: 8px; }
.stat-number i { font-size: 30px; margin-right: 8px; color: var(--accent-warm); }
.stat-label { color: rgba(255,255,255,0.65); font-size: 15px; }
.stat-divider { display: none; }

/* ===== Process ===== */
.process { padding: var(--section-space) 0; background: var(--white); }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; position: relative; }
.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 18%;
  right: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(108,62,255,0.35), rgba(255,138,0,0.35), transparent);
}
.process-step { text-align: center; position: relative; z-index: 1; padding: 0 12px; }
.step-num {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #9A6BFF);
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(108, 62, 255, 0.35);
  border: 5px solid var(--white);
  transition: var(--transition);
}
.process-step:hover .step-num { transform: scale(1.06); box-shadow: 0 12px 32px rgba(108, 62, 255, 0.45); }
.process-step h3 { font-size: 19px; margin-bottom: 10px; }
.process-step p { color: var(--text-soft); font-size: 14px; line-height: 1.65; max-width: 260px; margin: 0 auto; }

/* ===== FAQ ===== */
.faq { padding: var(--section-space) 0; background: var(--bg); }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover { border-color: rgba(108,62,255,0.15); box-shadow: var(--shadow-xs); }
.faq-item.open { border-color: rgba(108,62,255,0.2); box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
}
.faq-question i { color: var(--text-light); font-size: 14px; transition: transform 0.3s, color 0.3s; flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(45deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer p { padding: 0 24px 22px; color: var(--text-soft); font-size: 14.5px; line-height: 1.7; }

/* ===== CTA ===== */
.cta-wrap { padding: 0 0 100px; background: var(--bg); }
.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--primary), #7B4DE8 50%, #9A6BFF);
  border-radius: var(--radius-xl);
  padding: 80px 48px;
  text-align: center;
  color: #fff;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(108, 62, 255, 0.3);
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 240px;
  height: 240px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -30px;
  width: 280px;
  height: 280px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.cta-box h2 { font-size: 34px; margin-bottom: 14px; position: relative; z-index: 2; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.82); max-width: 520px; margin: 0 auto 32px; position: relative; z-index: 2; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }
.cta-box .btn-primary { background: var(--bg-deep); box-shadow: 0 6px 20px rgba(21, 26, 46, 0.25); }
.cta-box .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(21, 26, 46, 0.35); }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  padding: 70px 0 0;
  color: rgba(255,255,255,0.66);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { font-size: 18px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.55); transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul a i { font-size: 11px; opacity: 0.6; }
.footer-col ul a:hover { color: var(--accent-warm); padding-left: 4px; }
.footer-bottom {
  padding: 26px 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom .legal { display: flex; gap: 18px; }
.footer-bottom .legal a { font-size: 13px; color: rgba(255,255,255,0.4); transition: opacity 0.2s; }
.footer-bottom .legal a:hover { color: rgba(255,255,255,0.7); }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #C4C9D4; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #9AA0AE; }

/* ===== Focus ===== */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-dock { max-width: 100%; }
  .nav-menu a { padding: 8px 13px; font-size: 13px; }
  .nav-cta-btn { padding: 9px 16px; font-size: 13px; }
  .hero h1 { font-size: 44px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid::before { left: 10%; right: 10%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --section-space: 68px; }
  .container { padding: 0 20px; }
  .site-header { padding: 0 12px; top: 10px; }
  .nav-dock { border-radius: 20px; padding: 10px 14px; align-items: center; }
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 12px;
    right: 12px;
    flex-direction: column;
    background: rgba(21, 26, 46, 0.97);
    border-radius: 20px;
    padding: 14px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
  }
  .nav-menu.open { display: flex; animation: menuFade 0.25s ease; }
  .nav-menu a { padding: 12px 16px; width: 100%; justify-content: center; border-radius: 12px; }
  .nav-cta .nav-cta-btn { display: none; }
  @keyframes menuFade { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
  .hero { padding: 120px 0 80px; border-radius: 0 0 28px 28px; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
  .category-grid { grid-template-columns: 1fr; gap: 20px; }
  .latest-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
  .process-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-grid::before { display: none; }
  .faq-list { gap: 12px; }
  .cta-box { padding: 56px 28px; }
  .cta-box h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-trust { gap: 24px; }
}
@media (max-width: 520px) {
  :root { --section-space: 56px; }
  .latest-grid { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-number { font-size: 34px; }
  .stat-number i { font-size: 24px; margin-right: 4px; }
  .hero-trust { gap: 16px; }
  .trust-item strong { font-size: 20px; }
  .hero-actions .btn { width: 100%; }
  .section-head h2 { font-size: 28px; }
  .logo-text { font-size: 15px; }
  .nav-cta { display: none; }
}

/* roulang page: category1 */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #22d3ee;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --light: #f8fafc;
  --gray: #5b6b7f;
  --border: #e2e8f0;
  --bg-soft: #f1f5f9;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 44px rgba(15, 23, 42, .12);
  --transition: all .28s cubic-bezier(.4, 0, .2, 1);
  --font-base: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-base);
  background: var(--light);
  color: var(--dark);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, .5) 0%, rgba(15, 23, 42, .12) 55%, transparent 100%);
}
.nav-dock {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 26px;
  height: 72px;
  background: rgba(15, 23, 42, .84);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 999px;
  box-shadow: 0 8px 36px rgba(0, 0, 0, .30);
}
.brand-wrap { flex-shrink: 0; }
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .4px;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, .4);
}
.logo-text { white-space: nowrap; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-menu a {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: 999px;
  color: rgba(255, 255, 255, .70);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-menu a:hover { color: #fff; background: rgba(255, 255, 255, .09); }
.nav-menu a.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(99, 102, 241, .38), rgba(236, 72, 153, .38));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
  font-weight: 600;
}
.nav-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 999px;
  padding: 0 6px 0 16px;
  height: 42px;
  transition: var(--transition);
}
.nav-search:focus-within {
  background: rgba(255, 255, 255, .16);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, .30);
}
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  width: 128px;
  font-size: 13px;
}
.nav-search input::placeholder { color: rgba(255, 255, 255, .35); }
.nav-search button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-search button:hover { transform: scale(1.06); }
.nav-cta-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(245, 158, 11, .35);
  white-space: nowrap;
  transition: var(--transition);
}
.nav-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(245, 158, 11, .50); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .10);
  align-items: center;
  justify-content: center;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 100px 0 70px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-color: var(--dark);
  overflow: hidden;
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, .85) 10%, rgba(99, 102, 241, .42) 100%);
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 560px;
  height: 160px;
  background: radial-gradient(ellipse, rgba(99, 102, 241, .35), transparent 70%);
  filter: blur(30px);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .26);
  backdrop-filter: blur(8px);
  border-radius: 999px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 22px;
}
.hero-tag i { color: var(--accent); }
.page-hero h1 {
  color: #fff;
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.page-hero h1 span {
  background: linear-gradient(90deg, #a5b4fc, #f0abfc, #a5b4fc);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 5s ease infinite;
}
@keyframes gradientMove {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.page-hero .sub {
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto 30px;
  line-height: 1.75;
}
.hero-meta {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.hero-meta .meta-item {
  color: rgba(255, 255, 255, .85);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-meta .meta-item i { color: var(--accent); font-size: 16px; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 14px 0;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
  color: var(--gray);
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { display: flex; align-items: center; gap: 5px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 12px; color: #9aa8b9; }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

/* ===== Section ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { margin-bottom: 40px; }
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 1.2px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.28;
  margin-bottom: 12px;
  letter-spacing: .5px;
}
.section-head p {
  color: var(--gray);
  font-size: 15.5px;
  max-width: 660px;
  line-height: 1.7;
}
.section-head.center { text-align: center; }
.section-head.center p { margin: 0 auto; }

/* ===== Cards ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.guide-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.guide-card .card-cover {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.guide-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.guide-card:hover .card-cover img { transform: scale(1.07); }
.card-cover .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(15, 23, 42, .72);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 5px;
}
.card-cover .badge i { font-size: 11px; }
.guide-card .card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.guide-card .card-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.45;
}
.guide-card .card-body p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}
.guide-card .card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  font-size: 13px;
  color: #8996a7;
}
.guide-card .card-foot a {
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13.5px;
}
.guide-card .card-foot a:hover { gap: 8px; }

/* ===== Tags ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.tag-item {
  padding: 9px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--gray);
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  box-shadow: var(--shadow-sm);
}
.tag-item i { color: var(--primary); font-size: 13px; transition: var(--transition); }
.tag-item:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(99, 102, 241, .30);
}
.tag-item:hover i { color: #fff; }

/* ===== Content Split ===== */
.content-split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: center;
}
.content-split .split-text h2 {
  font-size: 29px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}
.split-text p {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 14px;
  line-height: 1.75;
}
.split-text ul {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.split-text ul li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14.5px;
  color: var(--dark-2);
  font-weight: 500;
}
.split-text ul li i {
  color: var(--primary);
  font-size: 17px;
  flex-shrink: 0;
}
.split-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.split-img img { width: 100%; height: 340px; object-fit: cover; }

/* ===== List Rows ===== */
.guide-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.guide-row {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 16px 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.guide-row:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateX(6px);
}
.row-num {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(99, 102, 241, .12), rgba(236, 72, 153, .12));
  color: var(--primary);
}
.guide-row:nth-child(1) .row-num {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
}
.guide-row:nth-child(2) .row-num {
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  color: #fff;
}
.guide-row:nth-child(3) .row-num {
  background: linear-gradient(135deg, #0ea5e9, #22d3ee);
  color: #fff;
}
.row-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}
.row-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: #8b98a9;
  font-size: 13px;
  flex-shrink: 0;
}
.row-meta i { margin-right: 4px; }
.row-btn {
  color: var(--primary);
  font-size: 15px;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, .08);
  transition: var(--transition);
}
.row-btn:hover { background: var(--primary); color: #fff; }

/* ===== Stats ===== */
.stats-block {
  background: linear-gradient(135deg, #101b33 0%, #1e1b4b 100%);
  border-radius: var(--radius-lg);
  padding: 55px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.stats-block::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -15%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(99, 102, 241, .38), transparent 70%);
}
.stats-block::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(236, 72, 153, .25), transparent 70%);
}
.stats-item { position: relative; z-index: 2; text-align: center; }
.stats-item .num {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(135deg, #a5b4fc, #f0abfc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.stats-item .label { color: rgba(255, 255, 255, .68); font-size: 14px; margin-top: 6px; letter-spacing: .4px; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.faq-item:hover { border-color: rgba(99, 102, 241, .4); box-shadow: var(--shadow-md); }
.faq-item summary {
  padding: 20px 24px;
  font-size: 15.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
}
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: auto;
  color: #9aa8b9;
  font-size: 12px;
  transition: var(--transition);
}
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-answer {
  padding: 0 24px 22px 54px;
  color: var(--gray);
  font-size: 14.5px;
  line-height: 1.75;
  border-top: 1px dashed var(--border);
  margin-top: 2px;
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-block {
  text-align: center;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  padding: 70px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(79, 70, 229, .92), rgba(236, 72, 153, .86));
}
.cta-block > * { position: relative; z-index: 2; }
.cta-block h2 {
  color: #fff;
  font-size: 31px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: .5px;
}
.cta-block p {
  color: rgba(255, 255, 255, .86);
  font-size: 16px;
  max-width: 540px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-btn-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 4px 18px rgba(0, 0, 0, .14);
}
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 10px 30px rgba(0, 0, 0, .22); }
.btn-ghost {
  background: rgba(255, 255, 255, .14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .32);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .26); transform: translateY(-3px); }

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .72);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 44px;
  padding-bottom: 44px;
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, .48);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .68);
  font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, .3);
}
.footer-col h4 {
  color: #fff;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: .4px;
}
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul a {
  color: rgba(255, 255, 255, .50);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.footer-col ul a:hover { color: #fff; padding-left: 5px; }
.footer-col ul a i { color: var(--primary); font-size: 11px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .42);
}
.legal { display: flex; gap: 22px; }
.legal a { color: rgba(255, 255, 255, .42); transition: var(--transition); }
.legal a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-dock { padding: 0 18px; gap: 14px; }
  .nav-menu a { padding: 8px 12px; font-size: 13px; gap: 5px; }
  .nav-search input { width: 90px; }
  .nav-cta-btn { padding: 8px 14px; font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .content-split { grid-template-columns: 1fr; gap: 30px; }
  .stats-block { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 64px 0; }
}
@media (max-width: 768px) {
  .nav-dock {
    border-radius: 20px;
    height: auto;
    min-height: 64px;
    flex-wrap: wrap;
    padding: 10px 16px;
    gap: 10px;
  }
  .nav-toggle { display: flex; margin-left: auto; }
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, .08);
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { justify-content: center; padding: 13px; border-radius: 12px; }
  .nav-cta {
    display: none;
    width: 100%;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 4px;
  }
  .nav-cta.open { display: flex; }
  .nav-search { flex: 1; }
  .nav-search input { width: auto; flex: 1; }
  .page-hero { padding: 80px 0 50px; }
  .page-hero h1 { font-size: 30px; }
  .hero-meta { gap: 16px; }
  .cards-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 26px; }
  .section { padding: 52px 0; }
  .cta-block { padding: 50px 24px; }
  .cta-block h2 { font-size: 26px; }
  .guide-row { flex-wrap: wrap; gap: 12px; }
  .row-meta { width: calc(100% - 52px); padding-left: 0; flex-wrap: wrap; gap: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .stats-block { padding: 40px 20px; gap: 20px; }
  .stats-item .num { font-size: 32px; }
  .split-img img { height: 260px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .page-hero h1 { font-size: 24px; }
  .page-hero .sub { font-size: 15px; }
  .hero-meta { gap: 10px; }
  .section-head h2 { font-size: 22px; }
  .stats-block { grid-template-columns: 1fr 1fr; padding: 30px 16px; }
  .stats-item .num { font-size: 28px; }
  .guide-row { padding: 12px 14px; }
  .row-title { font-size: 14px; }
  .row-btn { width: 30px; height: 30px; }
  .tag-item { padding: 7px 14px; font-size: 12.5px; }
  .faq-item summary { font-size: 14.5px; padding: 16px 18px; }
  .faq-answer { padding: 12px 18px 18px 44px; font-size: 14px; }
  .cta-block { padding: 40px 18px; border-radius: 16px; }
  .btn { padding: 11px 20px; font-size: 14px; }
}

/* roulang page: article */
:root{
    --primary:#6366f1;
    --primary-dark:#4f46e5;
    --primary-light:#eef2ff;
    --accent:#f59e0b;
    --accent-dark:#d97706;
    --bg:#f5f7fb;
    --bg-alt:#eef1f7;
    --surface:#ffffff;
    --text:#1e293b;
    --text-weak:#64748b;
    --border:#e2e8f0;
    --radius:16px;
    --radius-sm:10px;
    --radius-lg:24px;
    --shadow:0 4px 24px rgba(30,41,59,.06);
    --shadow-lg:0 12px 40px rgba(30,41,59,.12);
    --spacing:80px;
    --spacing-lg:110px;
    --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);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:color .25s ease}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
/* ===== Header / Dock Nav ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:100;padding:0 20px}
.nav-dock{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.5);border-radius:60px;padding:10px 20px;box-shadow:0 8px 32px rgba(30,41,59,.10)}
.brand-wrap{flex-shrink:0}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--text)}
.logo-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:12px;color:#fff;font-size:1rem;box-shadow:0 4px 12px rgba(99,102,241,.35)}
.logo-text{white-space:nowrap;letter-spacing:.3px}
.nav-menu{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-menu a{display:flex;align-items:center;gap:7px;padding:9px 16px;border-radius:30px;font-size:.875rem;font-weight:600;color:var(--text-weak);transition:all .25s ease;white-space:nowrap}
.nav-menu a i{font-size:.9rem}
.nav-menu a:hover{color:var(--primary);background:var(--primary-light)}
.nav-menu a.active{color:var(--primary);background:var(--primary-light)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-search{display:flex;align-items:center;background:var(--bg-alt);border-radius:30px;padding:6px 8px 6px 16px;border:1px solid transparent;transition:border-color .25s}
.nav-search:focus-within{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 3px rgba(99,102,241,.12)}
.nav-search input{border:none;background:transparent;outline:none;font-size:.85rem;color:var(--text);width:140px}
.nav-search button{color:var(--text-weak);font-size:.9rem;padding:6px 8px;border-radius:50%;transition:background .25s}
.nav-search button:hover{background:var(--primary-light);color:var(--primary)}
.nav-cta-btn{display:flex;align-items:center;gap:7px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;font-weight:700;font-size:.875rem;padding:10px 20px;border-radius:30px;box-shadow:0 4px 16px rgba(245,158,11,.3);transition:all .25s ease;white-space:nowrap}
.nav-cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,.4);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px;border-radius:10px}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s ease}
/* ===== Page Hero ===== */
.page-hero{position:relative;padding:170px 0 70px;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.88),rgba(15,23,42,.65) 50%,rgba(99,102,241,.45))}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:rgba(255,255,255,.75);margin-bottom:20px;flex-wrap:wrap}
.crumb a{display:flex;align-items:center;gap:5px;padding:6px 14px;background:rgba(255,255,255,.12);border-radius:20px;backdrop-filter:blur(6px);transition:all .25s}
.crumb a:hover{background:rgba(255,255,255,.25);color:#fff}
.crumb span{color:rgba(255,255,255,.85)}
.crumb .sep{opacity:.5}
.page-hero .category-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(99,102,241,.25);border:1px solid rgba(255,255,255,.25);padding:8px 18px;border-radius:30px;font-size:.8rem;font-weight:600;color:#fff;margin-bottom:18px;backdrop-filter:blur(8px)}
.page-hero h1{font-size:2.6rem;line-height:1.3;color:#fff;font-weight:800;max-width:820px;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.2)}
.page-hero .article-meta{display:flex;align-items:center;gap:18px;font-size:.875rem;color:rgba(255,255,255,.85);flex-wrap:wrap;margin-top:18px}
.article-meta .meta-item{display:flex;align-items:center;gap:7px}
.article-meta .meta-item i{opacity:.8}
/* ===== Article Body ===== */
.article-section{padding:60px 0 var(--spacing)}
.article-layout{display:grid;grid-template-columns:1fr 350px;gap:40px;align-items:start}
.article-main{background:var(--surface);border-radius:var(--radius-lg);padding:48px;box-shadow:var(--shadow);border:1px solid var(--border)}
.article-content{font-size:1rem;color:var(--text);line-height:1.9}
.article-content p{margin-bottom:1.2em}
.article-content h2{font-size:1.5rem;font-weight:700;margin:1.6em 0 .8em;color:var(--text);padding-left:16px;border-left:4px solid var(--primary);line-height:1.4}
.article-content h3{font-size:1.2rem;font-weight:700;margin:1.4em 0 .7em;color:var(--text)}
.article-content ul{padding-left:1.2em;margin-bottom:1.2em}
.article-content ul li{position:relative;padding-left:1.4em;margin-bottom:.6em;color:#475569}
.article-content ul li::before{content:'';position:absolute;left:0;top:.62em;width:8px;height:8px;background:var(--primary);border-radius:50%}
.article-content blockquote{border-left:4px solid var(--accent);background:var(--bg-alt);padding:18px 22px;border-radius:0 12px 12px 0;margin:1.5em 0;font-style:normal;color:#475569}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--radius);margin:1.5em 0;box-shadow:var(--shadow)}
.article-content a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(99,102,241,.3)}
.article-content a:hover{color:var(--primary-dark);border-bottom-color:var(--primary)}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:28px;border-top:1px solid var(--border)}
.article-tags .tag{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;background:var(--bg-alt);border-radius:20px;font-size:.8rem;font-weight:600;color:var(--text-weak);transition:all .25s}
.article-tags .tag:hover{background:var(--primary-light);color:var(--primary)}
.share-box{display:flex;align-items:center;gap:12px;margin-top:30px;padding:20px 24px;background:var(--bg-alt);border-radius:var(--radius-sm)}
.share-box span{font-size:.875rem;font-weight:600;color:var(--text-weak)}
.share-btn{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--surface);color:var(--text-weak);box-shadow:var(--shadow);transition:all .25s;font-size:.9rem}
.share-btn:hover{transform:translateY(-3px);color:#fff}
.share-btn.weixin:hover{background:#07c160}
.share-btn.weibo:hover{background:#e6162d}
.share-btn.qq:hover{background:#12b7f5}
.share-btn.link:hover{background:var(--primary)}
/* Sidebar */
.article-sidebar{display:flex;flex-direction:column;gap:30px}
.widget{background:var(--surface);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border:1px solid var(--border)}
.widget-title{display:flex;align-items:center;gap:10px;font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:22px;padding-bottom:14px;border-bottom:2px solid var(--primary-light)}
.widget-title i{color:var(--primary)}
.widget-title::after{content:'';flex:1;height:2px;background:var(--border);margin-left:8px}
.widget-list li{margin-bottom:4px}
.widget-list a{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:10px;font-size:.9rem;color:var(--text-weak);transition:all .25s;font-weight:500}
.widget-list a i{color:var(--primary);font-size:.8rem}
.widget-list a:hover{background:var(--primary-light);color:var(--primary);padding-left:20px}
.widget-tags{display:flex;flex-wrap:wrap;gap:8px}
.widget-tags a{padding:7px 14px;background:var(--bg-alt);border-radius:20px;font-size:.78rem;font-weight:600;color:var(--text-weak);transition:all .25s}
.widget-tags a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.widget-card{border-radius:14px;overflow:hidden;margin-bottom:14px;position:relative;box-shadow:var(--shadow);transition:transform .3s}
.widget-card:hover{transform:translateY(-4px)}
.widget-card img{width:100%;height:150px;object-fit:cover}
.widget-card .card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,23,42,.8),transparent 70%);display:flex;align-items:flex-end;padding:18px}
.widget-card .card-overlay span{color:#fff;font-size:.85rem;font-weight:700}
.widget-cta{background:linear-gradient(135deg,var(--primary),var(--primary-dark));border:none;color:#fff}
.widget-cta .widget-title{border-bottom-color:rgba(255,255,255,.2);color:#fff}
.widget-cta .widget-title i{color:#fff}
.widget-cta p{font-size:.875rem;color:rgba(255,255,255,.85);margin-bottom:18px}
.widget-cta .btn-white{display:flex;align-items:center;justify-content:center;gap:8px;background:#fff;color:var(--primary);font-weight:700;font-size:.875rem;padding:12px 24px;border-radius:30px;transition:all .25s}
.widget-cta .btn-white:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.15)}
/* Not Found */
.not-found{text-align:center;padding:90px 0}
.not-found i{font-size:4rem;color:var(--border);margin-bottom:24px;display:block}
.not-found h2{font-size:1.8rem;font-weight:800;color:var(--text);margin-bottom:16px}
.not-found p{color:var(--text-weak);margin-bottom:30px}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-weight:700;font-size:.95rem;padding:14px 30px;border-radius:30px;box-shadow:0 6px 20px rgba(99,102,241,.35);transition:all .25s}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(99,102,241,.45);color:#fff}
/* ===== Related ===== */
.related-section{padding:0 0 var(--spacing)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-head .tag-pill{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);font-size:.78rem;font-weight:700;padding:5px 14px;border-radius:20px;margin-bottom:10px;letter-spacing:1px}
.section-head h2{font-size:1.9rem;font-weight:800;color:var(--text);line-height:1.3}
.section-head .sub{color:var(--text-weak);font-size:.925rem}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .3s ease}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.related-card .thumb{position:relative;overflow:hidden;height:190px}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .thumb img{transform:scale(1.06)}
.related-card .thumb .cat{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.92);color:var(--primary);font-size:.72rem;font-weight:800;padding:4px 12px;border-radius:16px;box-shadow:var(--shadow)}
.related-card .body{padding:22px}
.related-card .body h3{font-size:1rem;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:12px}
.related-card .body h3 a:hover{color:var(--primary)}
.related-card .meta{display:flex;align-items:center;gap:14px;font-size:.78rem;color:var(--text-weak)}
.related-card .meta span{display:flex;align-items:center;gap:5px}
/* ===== CTA ===== */
.cta-section{padding:0 0 var(--spacing)}
.cta-box{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:linear-gradient(135deg,#1e1b4b,#312e81 60%);padding:70px 60px;text-align:center}
.cta-box::before{content:'';position:absolute;width:300px;height:300px;background:radial-gradient(circle,rgba(99,102,241,.4),transparent 70%);top:-80px;right:-80px;border-radius:50%}
.cta-box::after{content:'';position:absolute;width:220px;height:220px;background:radial-gradient(circle,rgba(245,158,11,.3),transparent 70%);bottom:-60px;left:-40px;border-radius:50%}
.cta-box .inner{position:relative;z-index:2}
.cta-box .label{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);color:#c7d2fe;padding:7px 18px;border-radius:30px;font-size:.8rem;font-weight:600;margin-bottom:20px}
.cta-box h2{font-size:2rem;color:#fff;font-weight:800;margin-bottom:14px;line-height:1.3}
.cta-box p{color:#a5b4fc;font-size:1rem;max-width:600px;margin:0 auto 32px}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-btn-basic{background:var(--accent);color:#fff;font-weight:700;padding:14px 32px;border-radius:30px;box-shadow:0 6px 20px rgba(245,158,11,.35);transition:all .25s}
.cta-btn-basic:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(245,158,11,.45);color:#fff}
.cta-btn-ghost{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#e0e7ff;font-weight:700;padding:14px 32px;border-radius:30px;transition:all .25s;backdrop-filter:blur(6px)}
.cta-btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-3px)}
/* ===== Footer ===== */
.site-footer{background:#0f172a;color:#94a3b8;padding:70px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr .9fr 1.1fr;gap:40px;padding-bottom:46px}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo .logo-icon{background:linear-gradient(135deg,#6366f1,#8b5cf6)}
.footer-brand p{font-size:.9rem;line-height:1.8;max-width:340px;margin-bottom:22px;color:#94a3b8}
.footer-social{display:flex;gap:10px}
.footer-social a{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);color:#94a3b8;transition:all .25s}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px);box-shadow:0 6px 16px rgba(99,102,241,.4)}
.footer-col h4{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:22px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--primary);border-radius:2px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{display:flex;align-items:center;gap:8px;font-size:.875rem;color:#94a3b8;transition:all .25s}
.footer-col ul a i{font-size:.75rem;color:var(--primary);transition:transform .25s}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-col ul a:hover i{transform:translateX(3px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0;border-top:1px solid rgba(255,255,255,.08);flex-wrap:wrap}
.footer-bottom p{font-size:.8rem;color:#64748b}
.legal{display:flex;gap:20px}
.legal a{font-size:.8rem;color:#64748b;transition:color .25s}
.legal a:hover{color:#fff}
/* ===== Responsive ===== */
@media (max-width:1024px){
    .nav-search input{width:90px}
    .article-layout{grid-template-columns:1fr 300px}
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
    :root{--spacing:55px}
    .site-header{top:10px;padding:0 14px}
    .nav-dock{flex-wrap:wrap;border-radius:24px;padding:12px 16px}
    .nav-toggle{display:flex}
    .nav-menu{display:none;width:100%;flex-direction:column;align-items:stretch;padding-top:12px;border-top:1px solid var(--border)}
    .nav-menu.open{display:flex}
    .nav-menu a{padding:13px 16px;justify-content:flex-start;border-radius:12px}
    .nav-cta{display:none}
    .nav-cta.open{display:flex;width:100%;justify-content:space-between;padding-top:12px}
    .nav-search{flex:1}
    .nav-search input{width:100%}
    .page-hero{padding:150px 0 55px}
    .page-hero h1{font-size:1.8rem}
    .article-section{padding:40px 0 55px}
    .article-layout{grid-template-columns:1fr}
    .article-main{padding:28px 24px}
    .related-grid{grid-template-columns:1fr 1fr}
    .cta-box{padding:48px 24px}
    .cta-box h2{font-size:1.5rem}
}
@media (max-width:520px){
    .container{padding:0 16px}
    .page-hero h1{font-size:1.4rem;line-height:1.4}
    .page-hero .article-meta{flex-wrap:wrap;gap:10px}
    .article-main{padding:22px 18px;border-radius:16px}
    .article-content{font-size:.925rem}
    .related-grid{grid-template-columns:1fr}
    .section-head h2{font-size:1.5rem}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .share-box{flex-wrap:wrap}
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
    :root {
      --primary: #6c5ce7;
      --primary-dark: #5a4bd1;
      --primary-light: #a29bfe;
      --secondary: #fd79a8;
      --accent: #00cec9;
      --bg: #f8f7fc;
      --bg-alt: #ffffff;
      --bg-dark: #1e1b2e;
      --text: #2d2a3a;
      --text-light: #6c6a7a;
      --text-invert: #f8f7fc;
      --border: #e5e3ef;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 4px 12px rgba(45, 42, 58, 0.06);
      --shadow-md: 0 8px 24px rgba(45, 42, 58, 0.08);
      --shadow-lg: 0 16px 40px rgba(108, 92, 231, 0.14);
      --font: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Helvetica Neue", Arial, sans-serif;
      --space: 24px;
    }

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

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

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

    ul, ol {
      list-style: none;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.25s ease, background 0.25s ease, opacity 0.25s ease, transform 0.25s ease;
    }

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

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

    /* 可访问性焦点轮廓 */
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 3px solid var(--primary-light);
      outline-offset: 3px;
    }

    /* ========== 容器 ========== */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--space);
    }

    /* ========== 按钮 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 0.95rem;
      line-height: 1.4;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 2px solid transparent;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(108, 92, 231, 0.35);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(108, 92, 231, 0.2);
    }

    .btn-light {
      background: #fff;
      color: var(--primary);
    }
    .btn-light:hover {
      background: var(--bg);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(255, 255, 255, 0.35);
    }

    /* ========== 导航 Dock ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      padding: 18px 0 0;
      background: linear-gradient(to bottom, rgba(248, 247, 252, 0.95), rgba(248, 247, 252, 0));
    }

    .nav-dock {
      max-width: 1130px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      background: rgba(255, 255, 255, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border: 1px solid rgba(255, 255, 255, 0.65);
      box-shadow: 0 10px 40px rgba(45, 42, 58, 0.08);
      border-radius: 60px;
      padding: 10px 18px 10px 12px;
      margin: 0 24px;
      transition: box-shadow 0.3s ease;
    }

    .nav-dock:hover {
      box-shadow: 0 14px 48px rgba(108, 92, 231, 0.12);
    }

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

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

    .logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      box-shadow: 0 6px 16px rgba(108, 92, 231, 0.35);
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: var(--text);
      white-space: nowrap;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 4px;
      flex: 1;
      justify-content: center;
    }

    .nav-menu a {
      padding: 10px 16px;
      border-radius: 40px;
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 6px;
      transition: all 0.3s ease;
      white-space: nowrap;
    }

    .nav-menu a i {
      font-size: 0.85rem;
    }

    .nav-menu a:hover {
      background: rgba(108, 92, 231, 0.08);
      color: var(--primary);
    }

    .nav-menu a.active {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 16px rgba(108, 92, 231, 0.35);
    }

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

    .nav-search {
      position: relative;
      display: flex;
      align-items: center;
    }

    .nav-search input {
      width: 0;
      padding: 0;
      border: none;
      background: transparent;
      transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
      font-size: 0.9rem;
      border-radius: 40px;
      opacity: 0;
    }

    .nav-search.open input,
    .nav-search input:focus {
      width: 180px;
      padding: 9px 36px 9px 16px;
      border: 1px solid var(--border);
      background: var(--bg);
      opacity: 1;
    }

    .nav-search input:focus + button {
      color: var(--primary);
    }

    .nav-search button {
      position: absolute;
      right: 6px;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 10px rgba(108, 92, 231, 0.3);
    }

    .nav-search button:hover {
      background: var(--primary-dark);
      transform: scale(1.05);
    }

    .nav-cta-btn {
      padding: 10px 18px;
      border-radius: 40px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 6px 16px rgba(108, 92, 231, 0.35);
      transition: all 0.3s ease;
    }

    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(253, 121, 168, 0.4);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      padding: 8px;
      cursor: pointer;
      border-radius: 8px;
    }

    .nav-toggle span {
      width: 22px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all 0.3s ease;
    }

    /* ========== Hero 区域 ========== */
    .page-hero {
      position: relative;
      padding: 120px 0 160px;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      display: flex;
      align-items: center;
      min-height: 480px;
      color: #fff;
      isolation: isolate;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(30, 27, 46, 0.82), rgba(108, 92, 231, 0.45));
      z-index: -1;
      backdrop-filter: saturate(0.4);
    }

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

    .page-hero .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      border-radius: 40px;
      background: rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(8px);
      font-size: 0.85rem;
      font-weight: 500;
      border: 1px solid rgba(255, 255, 255, 0.25);
      margin-bottom: 20px;
    }

    .page-hero h1 {
      font-size: clamp(2.4rem, 5vw, 3.6rem);
      line-height: 1.18;
      font-weight: 800;
      margin-bottom: 18px;
      max-width: 640px;
      letter-spacing: -1px;
    }

    .page-hero p {
      font-size: 1.1rem;
      max-width: 560px;
      margin-bottom: 32px;
      opacity: 0.9;
      line-height: 1.8;
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      margin-top: 28px;
      opacity: 0.75;
    }

    .breadcrumb i {
      font-size: 0.7rem;
    }

    /* ========== 分类说明 ========== */
    .intro-section {
      padding: 80px 0;
      background: var(--bg);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .intro-content .section-label {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 30px;
      background: rgba(108, 92, 231, 0.1);
      color: var(--primary);
      font-weight: 600;
      font-size: 0.85rem;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }

    .intro-content h2 {
      font-size: 2.2rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 20px;
      color: var(--text);
    }

    .intro-content p {
      color: var(--text-light);
      margin-bottom: 16px;
      line-height: 1.8;
    }

    .intro-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 24px;
    }

    .intro-feature {
      display: flex;
      align-items: center;
      gap: 10px;
      background: #fff;
      padding: 14px 16px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
      font-size: 0.92rem;
      font-weight: 500;
    }

    .intro-feature i {
      color: var(--primary);
    }

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

    .intro-visual img {
      height: 400px;
      object-fit: cover;
    }

    .intro-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(108, 92, 231, 0.35), transparent);
    }

    /* ========== 应用推荐列表 ========== */
    .app-section {
      padding: 90px 0;
      background: #fff;
    }

    .section-head {
      text-align: center;
      margin-bottom: 56px;
    }

    .section-head .section-label {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 30px;
      background: rgba(108, 92, 231, 0.1);
      color: var(--primary);
      font-weight: 600;
      font-size: 0.85rem;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }

    .section-head h2 {
      font-size: 2.4rem;
      font-weight: 700;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-head p {
      max-width: 680px;
      margin: 0 auto;
      color: var(--text-light);
      font-size: 1rem;
    }

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

    .app-card {
      background: var(--bg);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid transparent;
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
    }

    .app-card:hover {
      background: #fff;
      border-color: var(--border);
      box-shadow: var(--shadow-lg);
      transform: translateY(-6px);
    }

    .app-card .app-cover {
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 20px;
      position: relative;
      aspect-ratio: 16/9;
    }

    .app-card .app-cover img {
      object-fit: cover;
      height: 100%;
      transition: transform 0.5s ease;
    }

    .app-card:hover .app-cover img {
      transform: scale(1.05);
    }

    .app-card .app-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(255, 255, 255, 0.92);
      color: var(--primary);
      font-size: 0.72rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 30px;
      backdrop-filter: blur(4px);
    }

    .app-card .app-category {
      display: flex;
      gap: 8px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }

    .app-card .app-category span {
      font-size: 0.75rem;
      padding: 3px 12px;
      border-radius: 30px;
      background: rgba(108, 92, 231, 0.08);
      color: var(--primary);
      font-weight: 600;
    }

    .app-card h3 {
      font-size: 1.2rem;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text);
    }

    .app-card .app-desc {
      color: var(--text-light);
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }

    .app-card .app-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-light);
      margin-bottom: 16px;
    }

    .app-card .app-meta i {
      color: var(--primary);
      margin-right: 4px;
    }

    .app-card .btn {
      width: 100%;
    }

    /* ========== 数据/统计区 ========== */
    .stats-section {
      padding: 80px 0;
      background: var(--bg-dark);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .stats-section::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -80px;
      width: 300px;
      height: 300px;
      background: rgba(108, 92, 231, 0.2);
      border-radius: 50%;
      filter: blur(60px);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      text-align: center;
      position: relative;
      z-index: 1;
    }

    .stat-item h3 {
      font-size: 2.8rem;
      font-weight: 700;
      background: linear-gradient(135deg, #a29bfe, #fd79a8);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      margin-bottom: 6px;
    }

    .stat-item p {
      font-size: 0.95rem;
      opacity: 0.8;
    }

    /* ========== 推荐理由/流程 ========== */
    .why-section {
      padding: 80px 0;
      background: var(--bg);
    }

    .why-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-bottom: 60px;
    }

    .why-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      transition: all 0.3s ease;
      text-align: center;
    }

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

    .why-icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin: 0 auto 18px;
      box-shadow: 0 8px 20px rgba(108, 92, 231, 0.2);
    }

    .why-card h3 {
      font-size: 1.1rem;
      margin-bottom: 12px;
    }

    .why-card p {
      color: var(--text-light);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    /* ========== 精选专题 ========== */
    .featured-section {
      padding: 80px 0;
      background: #fff;
    }

    .featured-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .featured-item {
      display: flex;
      gap: 20px;
      background: var(--bg);
      border-radius: var(--radius-md);
      padding: 22px;
      border: 1px solid transparent;
      transition: all 0.3s ease;
      align-items: center;
    }

    .featured-item:hover {
      border-color: var(--border);
      box-shadow: var(--shadow-md);
      background: #fff;
    }

    .featured-thumb {
      width: 110px;
      height: 88px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      flex-shrink: 0;
    }

    .featured-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .featured-content h3 {
      font-size: 1.05rem;
      margin-bottom: 6px;
      font-weight: 600;
    }

    .featured-content p {
      font-size: 0.85rem;
      color: var(--text-light);
      line-height: 1.6;
      margin-bottom: 8px;
    }

    .featured-content .tag-row {
      display: flex;
      gap: 8px;
    }

    .featured-content .tag-row span {
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 20px;
      background: rgba(108, 92, 231, 0.08);
      color: var(--primary);
      font-weight: 500;
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: 80px 0;
      background: var(--bg);
    }

    .faq-grid {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      padding: 24px 28px;
      transition: all 0.3s ease;
    }

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

    .faq-item h3 {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .faq-item h3::before {
      content: "Q";
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: 700;
      flex-shrink: 0;
    }

    .faq-item p {
      color: var(--text-light);
      font-size: 0.93rem;
      line-height: 1.8;
      margin-left: 40px;
    }

    /* ========== CTA ========== */
    .cta-section {
      padding: 80px 0;
      background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      position: relative;
      isolation: isolate;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(108, 92, 231, 0.92), rgba(253, 121, 168, 0.82));
      z-index: -1;
    }

    .cta-box {
      max-width: 680px;
      margin: 0 auto;
      text-align: center;
      color: #fff;
    }

    .cta-box h2 {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .cta-box p {
      font-size: 1.05rem;
      margin-bottom: 32px;
      opacity: 0.9;
    }

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

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--bg-dark);
      color: #a9a6c0;
      padding: 70px 0 0;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 44px;
      margin-bottom: 50px;
    }

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

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

    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 20px;
      max-width: 340px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #a9a6c0;
      transition: all 0.3s ease;
    }

    .footer-social a:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-4px);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

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

    .footer-col ul li a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #a9a6c0;
      transition: all 0.3s ease;
    }

    .footer-col ul li a i {
      font-size: 0.8rem;
    }

    .footer-col ul li a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 0.82rem;
    }

    .legal {
      display: flex;
      gap: 20px;
    }

    .legal a {
      color: #a9a6c0;
    }

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

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .nav-dock {
        margin: 0 16px;
        padding: 10px 14px 10px 10px;
      }

      .nav-menu {
        gap: 0;
      }

      .nav-menu a {
        padding: 8px 10px;
        font-size: 0.85rem;
      }

      .nav-menu a i {
        font-size: 0.8rem;
      }

      .nav-cta-btn {
        padding: 8px 14px;
        font-size: 0.82rem;
      }

      .nav-search.open input,
      .nav-search input:focus {
        width: 120px;
      }

      .intro-grid {
        gap: 36px;
      }

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

      .featured-list {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 768px) {
      .nav-dock {
        margin: 0 12px;
        flex-wrap: wrap;
        border-radius: 28px;
        padding: 12px;
        gap: 8px;
      }

      .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        padding: 12px 0 4px;
        order: 3;
        gap: 6px;
      }

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

      .nav-menu a {
        width: 100%;
        justify-content: center;
        padding: 12px;
        font-size: 0.95rem;
      }

      .nav-cta {
        display: none;
      }

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

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

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

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

      .page-hero {
        padding: 90px 0 120px;
        min-height: 420px;
      }

      .page-hero h1 {
        font-size: 2.1rem;
      }

      .page-hero p {
        font-size: 1rem;
      }

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

      .intro-features {
        grid-template-columns: 1fr;
      }

      .intro-visual img {
        height: 280px;
      }

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

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

      .featured-item {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
      }

      .featured-thumb {
        width: 100%;
        height: 160px;
      }

      .cta-box h2 {
        font-size: 1.7rem;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

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

      .container {
        padding: 0 20px;
      }
    }

    @media (max-width: 520px) {
      .nav-dock {
        margin: 0 8px;
      }

      .logo-text {
        font-size: 1.05rem;
      }

      .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 1rem;
      }

      .page-hero .hero-actions {
        flex-direction: column;
      }

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

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

      .faq-item h3 {
        font-size: 0.95rem;
      }

      .faq-item p {
        margin-left: 0;
        margin-top: 8px;
      }

      .cta-actions {
        flex-direction: column;
      }

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

/* roulang page: category3 */
:root{
  --primary:#f59e0b;
  --primary-dark:#d97706;
  --primary-light:#fef3c7;
  --secondary:#7c3aed;
  --secondary-light:#ede9fe;
  --dark:#1f1b2e;
  --dark-2:#2d2740;
  --bg:#f7f6fb;
  --card:#ffffff;
  --text:#1f1b2e;
  --muted:#6b7280;
  --border:#e6e4ef;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(31,27,46,.08);
  --shadow-lg:0 18px 50px rgba(31,27,46,.12);
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,button{outline:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:90px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:48px}
.section-title{font-size:32px;font-weight:800;line-height:1.25;color:var(--dark);letter-spacing:-.5px}
.section-title .highlight{color:var(--primary)}
.section-sub{color:var(--muted);font-size:15px;max-width:560px;margin-top:8px}
.section-link{font-size:14px;font-weight:600;color:var(--secondary);display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:1px solid var(--border);border-radius:999px;background:var(--card);transition:all var(--transition)}
.section-link:hover{border-color:var(--secondary);background:var(--secondary-light);transform:translateY(-2px)}
@media(max-width:768px){
  .section{padding:64px 0}
  .section-title{font-size:26px}
}

/* ============ HEADER / NAV-DOCK ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:18px 40px 0;
  pointer-events:none;
}
.nav-dock{
  pointer-events:auto;
  max-width:1200px;
  margin:0 auto;
  display:flex;align-items:center;
  justify-content:space-between;
  gap:20px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.6);
  border-radius:22px;
  padding:14px 22px;
  box-shadow:0 10px 40px rgba(31,27,46,.1);
  transition:box-shadow var(--transition);
}
.nav-dock:hover{box-shadow:0 14px 50px rgba(31,27,46,.14)}
.brand-wrap{flex-shrink:0}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{
  width:42px;height:42px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:18px;border-radius:13px;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.logo-text{font-size:19px;font-weight:800;color:var(--dark);letter-spacing:-.3px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:6px;background:var(--bg);border-radius:14px;padding:4px}
.nav-menu a{
  display:flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--muted);
  padding:9px 16px;border-radius:11px;
  transition:all var(--transition);
  white-space:nowrap;
}
.nav-menu a i{font-size:14px}
.nav-menu a:hover{color:var(--dark);background:var(--card);box-shadow:0 3px 12px rgba(31,27,46,.06)}
.nav-menu a.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-dark));box-shadow:0 6px 18px rgba(245,158,11,.35)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:999px;padding:6px 8px 6px 16px;
  transition:all var(--transition);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.nav-search input{
  border:none;background:transparent;font-size:13px;color:var(--text);
  width:120px;transition:width var(--transition);
}
.nav-search input::placeholder{color:#b0aec3}
.nav-search button{
  width:30px;height:30px;border-radius:50%;
  background:var(--dark);color:#fff;font-size:12px;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--transition);
}
.nav-search button:hover{background:var(--primary)}
.nav-cta-btn{
  display:inline-flex;align-items:center;gap:7px;
  background:linear-gradient(135deg,var(--secondary),#6d28d9);
  color:#fff;font-size:14px;font-weight:600;
  padding:10px 18px;border-radius:12px;
  box-shadow:0 6px 18px rgba(124,58,237,.3);
  transition:all var(--transition);white-space:nowrap;
}
.nav-cta-btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(124,58,237,.4)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--bg);border:1px solid var(--border);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--dark);border-radius:2px;transition:all .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:1024px){
  .site-header{padding:14px 20px 0}
  .nav-menu a{padding:8px 12px;font-size:13px}
  .nav-search input{width:80px}
}
@media(max-width:768px){
  .site-header{padding:12px 16px 0}
  .nav-dock{flex-wrap:wrap;padding:12px 16px;border-radius:18px}
  .nav-toggle{display:flex}
  .nav-menu{
    display:none;order:4;width:100%;flex-direction:column;
    background:var(--card);border-radius:16px;padding:10px;
    box-shadow:var(--shadow);margin-top:10px;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;justify-content:flex-start;padding:11px 14px}
  .nav-cta{margin-left:auto}
  .nav-search input{width:90px}
}
@media(max-width:520px){
  .logo-text{font-size:16px}
  .logo-icon{width:36px;height:36px;font-size:15px;border-radius:10px}
  .nav-cta-btn{padding:9px 12px;font-size:12px}
  .nav-cta-btn .fa-bolt{display:none}
  .nav-search{display:none}
}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;
  padding:190px 0 100px;
  background:linear-gradient(135deg,rgba(31,27,46,.88),rgba(45,39,64,.78)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;bottom:-60px;right:-30px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(245,158,11,.25),transparent 70%);
}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:rgba(255,255,255,.7);
  margin-bottom:28px;
}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:10px;opacity:.6}
.page-hero-content{max-width:680px;position:relative;z-index:2}
.page-hero .hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(245,158,11,.15);
  border:1px solid rgba(245,158,11,.4);
  color:var(--primary);font-size:13px;font-weight:600;
  padding:6px 16px;border-radius:999px;margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;font-weight:800;line-height:1.2;
  margin-bottom:18px;letter-spacing:-1px;
}
.page-hero h1 .light{color:var(--primary)}
.page-hero p{font-size:16px;color:rgba(255,255,255,.8);margin-bottom:32px;max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:15px;font-weight:700;
  padding:14px 28px;border-radius:14px;
  box-shadow:0 8px 24px rgba(245,158,11,.35);
  transition:all var(--transition);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(245,158,11,.45)}
.btn-secondary{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.25);
  color:#fff;font-size:15px;font-weight:600;
  padding:14px 28px;border-radius:14px;
  transition:all var(--transition);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.btn-secondary:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.4)}
@media(max-width:768px){
  .page-hero{padding:150px 0 70px}
  .page-hero h1{font-size:30px}
  .hero-btns .btn-primary,.hero-btns .btn-secondary{padding:12px 22px;font-size:14px}
}

/* ============ GIFT CATEGORIES ============ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.cat-card{
  position:relative;
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:32px 26px;
  overflow:hidden;
  transition:all var(--transition);
}
.cat-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  opacity:0;transition:opacity var(--transition);
}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.cat-card:hover::before{opacity:1}
.cat-icon{
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;color:#fff;margin-bottom:20px;
  box-shadow:0 8px 20px rgba(31,27,46,.12);
}
.cat-card:nth-child(1) .cat-icon{background:linear-gradient(135deg,#f59e0b,#f97316)}
.cat-card:nth-child(2) .cat-icon{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}
.cat-card:nth-child(3) .cat-icon{background:linear-gradient(135deg,#06b6d4,#0891b2)}
.cat-card:nth-child(4) .cat-icon{background:linear-gradient(135deg,#10b981,#059669)}
.cat-card h3{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--dark)}
.cat-card p{font-size:14px;color:var(--muted);line-height:1.6}
.cat-count{
  display:inline-block;margin-top:16px;
  font-size:12px;font-weight:600;color:var(--primary-dark);
  background:var(--primary-light);padding:4px 12px;border-radius:999px;
}
@media(max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .cat-grid{grid-template-columns:1fr}
  .cat-card{padding:24px 20px}
}

/* ============ FEATURED GIFTS ============ */
.bg-soft{background:linear-gradient(180deg,var(--primary-light) 0%,#fff 100%)}
.gift-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.gift-card{
  background:var(--card);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  transition:all var(--transition);
  display:flex;flex-direction:column;
}
.gift-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.gift-cover{
  position:relative;height:200px;overflow:hidden;
}
.gift-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gift-card:hover .gift-cover img{transform:scale(1.05)}
.gift-cover-overlay{
  position:absolute;bottom:0;left:0;right:0;padding:40px 18px 14px;
  background:linear-gradient(transparent,rgba(0,0,0,.55));
}
.gift-game{
  display:inline-block;color:#fff;font-size:13px;font-weight:600;
  background:rgba(0,0,0,.35);padding:3px 12px;border-radius:999px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.gift-body{padding:22px;display:flex;flex-direction:column;flex:1}
.gift-title{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:8px}
.gift-desc{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:14px;flex:1}
.gift-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  background:var(--bg);color:var(--muted);
  border:1px solid var(--border);
}
.tag.hot{background:#fef2f2;color:#dc2626;border-color:#fecaca}
.tag.limited{background:var(--secondary-light);color:var(--secondary);border-color:#ddd6fe}
.tag.new{background:#ecfdf5;color:#059669;border-color:#a7f3d0}
.gift-meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--border);
}
.gift-time{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.btn-sm{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  padding:8px 16px;border-radius:10px;
  box-shadow:0 4px 12px rgba(245,158,11,.3);
  transition:all var(--transition);
}
.btn-sm:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,158,11,.4)}
.btn-sm.outline{background:transparent;color:var(--primary-dark);border:1px solid var(--primary);box-shadow:none}
.btn-sm.outline:hover{background:var(--primary-light)}
@media(max-width:1024px){
  .gift-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .gift-grid{grid-template-columns:1fr}
  .gift-cover{height:180px}
}

/* ============ GIFT LIST ============ */
.gift-list-wrap{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.gift-list-item{
  display:flex;align-items:center;flex-wrap:wrap;gap:16px;
  padding:22px 26px;
  border-bottom:1px solid var(--border);
  transition:background var(--transition);
}
.gift-list-item:last-child{border-bottom:none}
.gift-list-item:hover{background:#faf9fe}
.gift-thumb{
  width:60px;height:60px;border-radius:14px;
  object-fit:cover;flex-shrink:0;
}
.gift-info{flex:1;min-width:200px}
.gift-info h4{font-size:16px;font-weight:700;margin-bottom:4px;color:var(--dark)}
.gift-info .gift-game-name{font-size:12px;color:var(--muted)}
.gift-type-tags{display:flex;gap:6px;flex-wrap:wrap}
.gift-status{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600}
.gift-status .dot{width:8px;height:8px;border-radius:50%}
.gift-status.active .dot{background:#10b981;box-shadow:0 0 0 4px rgba(16,185,129,.15)}
.gift-status.expired .dot{background:#9ca3af}
.gift-status .expired-text{color:var(--muted);font-weight:500}
.gift-code{
  font-size:13px;color:var(--dark);font-weight:600;
  background:var(--bg);border:1px dashed var(--border);
  padding:6px 16px;border-radius:10px;
}
@media(max-width:768px){
  .gift-list-item{padding:18px 16px;flex-direction:column;align-items:flex-start}
  .gift-thumb{width:52px;height:52px}
  .gift-status{flex:1}
}

/* ============ STEPS ============ */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:36px 26px 28px;
  transition:all var(--transition);
}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;top:20px;right:24px;
  font-size:42px;font-weight:800;color:var(--border);
  line-height:1;letter-spacing:-2px;
  transition:color var(--transition);
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.step:hover::before{color:var(--primary-light)}
.step-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,var(--secondary),var(--secondary-light));
  display:flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--secondary);
  margin-bottom:20px;
  box-shadow:0 6px 16px rgba(124,58,237,.15);
}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--dark)}
.step p{font-size:13px;color:var(--muted);line-height:1.6}
@media(max-width:1024px){
  .steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .steps-grid{grid-template-columns:1fr}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-q{
  width:100%;text-align:left;
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;
  font-size:15px;font-weight:600;color:var(--dark);
  transition:background var(--transition);
}
.faq-q:hover{background:#faf9fe}
.faq-q .faq-icon{
  width:28px;height:28px;border-radius:8px;flex-shrink:0;
  background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;transition:all var(--transition);
}
.faq-item.open .faq-icon{
  background:var(--primary);color:#fff;
  box-shadow:0 4px 12px rgba(245,158,11,.35);
}
.faq-a{
  display:none;
  padding:0 24px 20px 66px;
  font-size:14px;color:var(--muted);line-height:1.75;
}
.faq-item.open .faq-a{display:block}
@media(max-width:520px){
  .faq-a{padding:0 18px 18px 50px}
}

/* ============ CTA ============ */
.cta-box{
  position:relative;
  background:linear-gradient(135deg,#2d2740,#1f1b2e);
  border-radius:24px;
  padding:60px 50px;
  overflow:hidden;
  text-align:center;
  box-shadow:var(--shadow-lg);
}
.cta-box::before{
  content:"";
  position:absolute;top:-80px;right:-60px;
  width:280px;height:280px;border-radius:50%;
  background:rgba(245,158,11,.15);
}
.cta-box::after{
  content:"";
  position:absolute;bottom:-100px;left:-40px;
  width:280px;height:280px;border-radius:50%;
  background:rgba(124,58,237,.2);
}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:30px;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.5px}
.cta-content h2 .light{color:var(--primary)}
.cta-content p{color:rgba(255,255,255,.75);font-size:15px;max-width:520px;margin:0 auto 30px}
.cta-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.btn-light{
  display:inline-flex;align-items:center;gap:9px;
  background:#fff;color:var(--dark);
  font-size:15px;font-weight:700;
  padding:14px 28px;border-radius:14px;
  transition:all var(--transition);
}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(255,255,255,.2)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.3);
  font-size:15px;font-weight:600;
  padding:14px 28px;border-radius:14px;
  transition:all var(--transition);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5)}
@media(max-width:768px){
  .cta-box{padding:44px 26px;border-radius:18px}
  .cta-content h2{font-size:24px}
  .cta-btns .btn-light,.cta-btns .btn-ghost{padding:12px 20px;font-size:14px;width:100%;justify-content:center}
}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.7);
  padding-top:70px;
  margin-top:40px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:46px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:18px;color:rgba(255,255,255,.6)}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.8);font-size:16px;
  transition:all var(--transition);
}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.65);
  display:inline-flex;align-items:center;gap:8px;
  transition:all var(--transition);
}
.footer-col a i{font-size:11px;opacity:.6}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:26px 0;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom .legal{display:flex;gap:20px}
.footer-bottom .legal a{font-size:13px;color:rgba(255,255,255,.45);transition:color var(--transition)}
.footer-bottom .legal a:hover{color:var(--primary)}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ============ ANIMATIONS ============ */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
.page-hero-content,.cat-card,.gift-card,.step,.faq-item,.cta-box{
  animation:fadeUp .6s ease both;
}
.cat-card:nth-child(2),.gift-card:nth-child(2),.step:nth-child(2){animation-delay:.1s}
.cat-card:nth-child(3),.gift-card:nth-child(3),.step:nth-child(3){animation-delay:.2s}
.cat-card:nth-child(4),.gift-card:nth-child(4),.step:nth-child(4){animation-delay:.3s}