/* roulang page: index */
:root {
  --primary: #1a5bd4;
  --primary-dark: #0d3f9e;
  --primary-light: #e8f0ff;
  --accent: #f97316;
  --accent-dark: #ea6a0a;
  --accent-light: #fff3e8;
  --text: #17233c;
  --text-weak: #667a9c;
  --muted: #8fa0bd;
  --bg: #f4f7fc;
  --surface: #ffffff;
  --border: #e2e9f4;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(13, 63, 158, 0.06);
  --shadow-md: 0 10px 28px rgba(13, 63, 158, 0.08);
  --shadow-lg: 0 20px 48px rgba(13, 63, 158, 0.14);
  --section-space: 96px;
  --transition: all .28s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea { font: inherit; }
:focus-visible { outline: 3px solid rgba(26, 91, 212, .35); outline-offset: 2px; border-radius: 4px; }

.grid-container { max-width: 1200px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(13, 63, 158, .04);
}
.header-inner { min-height: 76px; gap: 16px; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: .5px;
  white-space: nowrap;
}
.logo-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #4f8fff);
  border-radius: 12px;
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 6px 16px rgba(26, 91, 212, .3);
}
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 6px; flex-wrap: wrap; }
.nav-link {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-weak);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, var(--primary), #2f6ff0); box-shadow: 0 6px 18px rgba(26, 91, 212, .24); }
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), #ff9a4d);
  box-shadow: 0 8px 22px rgba(249, 115, 22, .28);
  transition: var(--transition);
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(249, 115, 22, .36); color: #fff; }
.nav-toggle { display: none; padding: 8px 12px; font-size: 1.2rem; color: var(--primary); border-radius: 8px; }
.nav-toggle:hover { background: var(--primary-light); }

.hero-section {
  position: relative;
  background-image: linear-gradient(135deg, rgba(9, 48, 128, .94), rgba(13, 63, 158, .82) 48%, rgba(249, 115, 22, .26));
  background-size: cover;
  background-position: center;
  padding: 132px 0 118px;
  color: #fff;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  right: -140px;
  top: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 255, 255, .13), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-section::after {
  content: "";
  position: absolute;
  left: -70px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(249, 115, 22, .24), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 600;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 12px rgba(74, 222, 128, .8);
}
.hero-title { font-size: clamp(2.2rem, 4.5vw, 3.4rem); font-weight: 900; line-height: 1.2; letter-spacing: 1px; margin-bottom: 20px; text-shadow: 0 4px 24px rgba(0, 0, 0, .18); }
.hero-desc { font-size: 1.12rem; color: rgba(255, 255, 255, .88); max-width: 600px; margin-bottom: 34px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 36px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-size: .98rem;
  font-weight: 700;
  border-radius: 999px;
  transition: var(--transition);
  line-height: 1.4;
  border: 2px solid transparent;
}
.btn-lg { padding: 15px 34px; font-size: 1.05rem; }
.btn-sm { padding: 8px 16px; font-size: .88rem; }
.btn-accent { background: linear-gradient(135deg, var(--accent), #ff9b4a); color: #fff; box-shadow: 0 10px 26px rgba(249, 115, 22, .32); }
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(249, 115, 22, .4); color: #fff; }
.btn-outline { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .5); color: #fff; backdrop-filter: blur(6px); }
.btn-outline:hover { background: rgba(255, 255, 255, .14); border-color: #fff; color: #fff; transform: translateY(-3px); }
.hero-trust { display: flex; flex-wrap: wrap; gap: 26px; color: rgba(255, 255, 255, .82); font-size: .9rem; font-weight: 500; }
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; }
.hero-trust i { color: #ffb177; }

.section { padding: var(--section-space) 0; }
.section-alt { background: #fff; }
.section-head { max-width: 680px; margin: 0 auto 54px; text-align: center; }
.section-eyebrow { display: inline-block; font-size: .85rem; font-weight: 700; letter-spacing: 2px; color: var(--primary); background: var(--primary-light); padding: 6px 16px; border-radius: 999px; margin-bottom: 14px; }
.section-title { font-size: clamp(1.7rem, 2.8vw, 2.25rem); font-weight: 800; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-desc { font-size: 1rem; color: var(--text-weak); line-height: 1.75; }

.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 26px; box-shadow: var(--shadow-sm); transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-icon { width: 56px; height: 56px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary-light), #dcebff); color: var(--primary); border-radius: 16px; font-size: 1.4rem; margin-bottom: 18px; }
.feature-card:nth-child(2) .feature-icon { background: var(--accent-light); color: var(--accent); }
.feature-card:nth-child(3) .feature-icon { background: #e6f7ee; color: #0f9d63; }
.feature-card:nth-child(4) .feature-icon { background: #f0ebff; color: #7c3aed; }
.feature-title { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.feature-desc { font-size: .92rem; color: var(--text-weak); line-height: 1.65; }

.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.category-card { background: var(--surface); border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); position: relative; }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.category-media { overflow: hidden; position: relative; aspect-ratio: 16 / 10; }
.category-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-media img { transform: scale(1.06); }
.category-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(10, 34, 80, .35)); }
.category-tag { position: absolute; left: 18px; top: 18px; z-index: 2; background: rgba(255, 255, 255, .92); color: var(--primary); font-size: .8rem; font-weight: 700; padding: 5px 14px; border-radius: 999px; box-shadow: 0 4px 12px rgba(0, 0, 0, .12); }
.category-content { padding: 26px 26px 30px; }
.category-content h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; }
.category-content p { font-size: .93rem; color: var(--text-weak); line-height: 1.7; margin-bottom: 18px; }
.category-link { display: inline-flex; align-items: center; gap: 8px; font-size: .92rem; font-weight: 700; color: var(--primary); }
.category-link i { transition: transform .3s; }
.category-link:hover { color: var(--accent); }
.category-link:hover i { transform: translateX(4px); }

.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); transition: var(--transition); display: flex; flex-direction: column; }
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.news-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.tag { display: inline-block; padding: 4px 14px; font-size: .78rem; font-weight: 700; border-radius: 999px; }
.tag-accent { background: var(--accent-light); color: var(--accent); }
.tag-blue { background: var(--primary-light); color: var(--primary); }
.news-time { font-size: .82rem; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.news-title { font-size: 1.08rem; font-weight: 750; line-height: 1.5; margin-bottom: 8px; }
.news-title a { color: var(--text); }
.news-title a:hover { color: var(--primary); }
.news-desc { font-size: .92rem; color: var(--text-weak); line-height: 1.7; margin-bottom: 16px; flex: 1; }
.news-more { font-size: .88rem; font-weight: 700; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-more:hover { color: var(--accent); }
.news-more i { transition: transform .3s; }
.news-more:hover i { transform: translateX(3px); }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 44px 20px; background: var(--surface); border-radius: var(--radius-lg); border: 1px dashed var(--border); color: var(--text-weak); font-size: 1rem; }

.stats-section { background: linear-gradient(135deg, #0b2f6e, #134a9e 55%, #1b5bd4); padding: 80px 0; color: #fff; border-radius: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item { padding: 24px 10px; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius-lg); backdrop-filter: blur(6px); transition: var(--transition); }
.stat-item:hover { background: rgba(255, 255, 255, .14); transform: translateY(-4px); }
.stat-number { font-size: clamp(1.9rem, 3.2vw, 2.7rem); font-weight: 900; letter-spacing: 1px; }
.stat-label { font-size: .95rem; color: rgba(255, 255, 255, .82); margin-top: 6px; }
.stat-item i { font-size: 1.6rem; margin-bottom: 10px; color: #ffb177; }

.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: step; }
.step-item { position: relative; text-align: center; padding: 38px 20px 30px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: var(--transition); }
.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; font-size: .95rem; margin-bottom: 16px; box-shadow: 0 6px 16px rgba(26, 91, 212, .3); }
.step-icon { font-size: 1.5rem; color: var(--accent); margin-bottom: 12px; }
.step-title { font-size: 1.05rem; font-weight: 750; margin-bottom: 8px; }
.step-desc { font-size: .9rem; color: var(--text-weak); line-height: 1.65; }

.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.featured-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--border); background: #fff; transition: var(--transition); display: flex; flex-direction: column; }
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.featured-img { position: relative; overflow: hidden; aspect-ratio: 16 / 8; }
.featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.featured-card:hover .featured-img img { transform: scale(1.05); }
.featured-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(8, 30, 70, .45)); }
.featured-badge { position: absolute; z-index: 2; left: 18px; top: 18px; background: rgba(249, 115, 22, .95); color: #fff; font-size: .8rem; font-weight: 700; padding: 5px 14px; border-radius: 999px; box-shadow: 0 4px 14px rgba(249, 115, 22, .35); }
.featured-content { padding: 24px 28px 28px; }
.featured-content h3 { font-size: 1.22rem; font-weight: 800; margin-bottom: 8px; }
.featured-content p { font-size: .93rem; color: var(--text-weak); line-height: 1.7; margin-bottom: 14px; }
.featured-link { font-weight: 700; color: var(--primary); font-size: .92rem; display: inline-flex; align-items: center; gap: 6px; }
.featured-link:hover { color: var(--accent); }

.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item.open { box-shadow: var(--shadow-md); border-color: rgba(26, 91, 212, .3); }
.faq-q { display: flex; justify-content: space-between; align-items: center; padding: 20px 26px; font-size: 1rem; font-weight: 700; cursor: pointer; color: var(--text); gap: 16px; }
.faq-q i { color: var(--primary); transition: transform .3s; flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 26px 22px; color: var(--text-weak); font-size: .93rem; line-height: 1.75; }
.faq-item.open .faq-a { display: block; }

.cta-section { background-image: linear-gradient(135deg, rgba(13, 63, 158, .95), rgba(249, 115, 22, .55)), url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; padding: 96px 0; color: #fff; }
.cta-box { text-align: center; max-width: 720px; margin: 0 auto; }
.cta-title { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 900; margin-bottom: 16px; line-height: 1.3; }
.cta-desc { font-size: 1.05rem; color: rgba(255, 255, 255, .88); margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-actions .btn-outline { border-color: #fff; }

.site-footer { background: #0b1e3a; color: #aeb9d0; padding: 72px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 16px; }
.footer-brand .brand-logo .logo-icon { background: linear-gradient(135deg, var(--accent), #ff9a4d); }
.footer-desc { font-size: .92rem; color: #8b99b5; line-height: 1.75; max-width: 340px; }
.footer-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #aeb9d0; font-size: .9rem; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .85rem; color: #7988a5; }

@media (max-width: 1024px) {
  :root { --section-space: 72px; }
  .features-grid, .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header-inner { min-height: 64px; flex-wrap: nowrap; }
  .site-nav { position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 20px; border-bottom: 1px solid var(--border); box-shadow: 0 18px 30px rgba(0, 0, 0, .08); display: none; z-index: 99; gap: 8px; }
  .site-nav.open { display: flex; }
  .nav-link { display: block; text-align: center; padding: 12px 20px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-cta { display: none; }
  .hero-section { padding: 88px 0 76px; }
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid, .featured-grid { grid-template-columns: 1fr; }
  .section-head { margin-bottom: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  :root { --section-space: 56px; }
  .features-grid, .category-grid, .steps-grid, .stats-grid { grid-template-columns: 1fr; }
  .news-card { padding: 20px; }
  .category-content { padding: 20px; }
  .hero-actions .btn { width: 100%; }
  .cta-actions .btn { width: 100%; }
  .faq-q { padding: 16px 18px; font-size: .95rem; }
  .faq-a { padding: 0 18px 18px; }
  .brand-logo { font-size: 1.15rem; }
  .logo-icon { width: 36px; height: 36px; font-size: 1rem; }
}

/* roulang page: category1 */
:root {
  --primary: #6c3ef5;
  --primary-dark: #5628d0;
  --primary-light: #efe9fe;
  --accent: #ff6b35;
  --accent-light: #fff0e8;
  --bg: #f7f8fc;
  --bg-white: #ffffff;
  --bg-deep: #1d1333;
  --text: #1e1b2e;
  --text-light: #5f5b70;
  --text-lighter: #8a869a;
  --border: #e6e3f2;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(30, 27, 46, 0.06);
  --shadow-md: 0 8px 30px rgba(30, 27, 46, 0.08);
  --shadow-lg: 0 16px 50px rgba(30, 27, 46, 0.12);
  --shadow-primary: 0 8px 30px rgba(108, 62, 245, 0.25);
  --transition: all 0.3s ease;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* ===== Header & Nav ===== */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.brand-logo:hover { color: var(--primary); }

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  flex-shrink: 0;
  box-shadow: var(--shadow-primary);
}

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

.site-nav .nav-link {
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  position: relative;
  transition: var(--transition);
}

.site-nav .nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.site-nav .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-primary);
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(108, 62, 245, 0.35);
}

.nav-toggle {
  display: none;
  background: var(--primary-light);
  border: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

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

@media (max-width: 900px) {
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: none;
    z-index: 99;
  }
  .site-nav.open { display: flex; }
  .site-nav .nav-link { text-align: center; padding: 14px; }
  .header-cta { display: none; }
}

/* ===== Page Hero / Banner ===== */
.page-hero {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(135deg, #1d1333 0%, #3b1d7a 50%, #6c3ef5 100%);
  overflow: hidden;
  color: #fff;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.15;
  z-index: 0;
}

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

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

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

.page-hero p.lead {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin-bottom: 30px;
  line-height: 1.7;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 25px rgba(255, 107, 53, 0.35);
}

.btn-primary:hover { background: #e8551f; color: #fff; transform: translateY(-2px); box-shadow: 0 12px 35px rgba(255,107,53,0.45); }

.btn-outline {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  backdrop-filter: blur(10px);
}

.btn-outline:hover { background: rgba(255,255,255,0.2); color: #fff; transform: translateY(-2px); }

@media (max-width: 768px) {
  .page-hero { padding: 60px 0 50px; }
  .page-hero h1 { font-size: 32px; }
  .page-hero p.lead { font-size: 15px; }
  .page-hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-lighter);
}

.breadcrumb-bar a { color: var(--text-lighter); }
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar .sep { margin: 0 8px; color: var(--border); }
.breadcrumb-bar .current { color: var(--primary); font-weight: 500; }

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-light);
  max-width: 720px;
  line-height: 1.7;
  margin-bottom: 30px;
}

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

@media (max-width: 768px) {
  .section { padding: 50px 0; }
  .section-title { font-size: 26px; }
}

/* ===== New Game Cards ===== */
.newgame-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.newgame-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.newgame-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

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

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

.newgame-cover .tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.newgame-cover .tag.tag-hot { background: #ef4444; box-shadow: 0 4px 15px rgba(239,68,68,0.4); }
.newgame-cover .tag.tag-new { background: var(--primary); box-shadow: 0 4px 15px rgba(108,62,245,0.4); }

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

.newgame-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.newgame-body h3 a:hover { color: var(--primary); }

.newgame-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.newgame-meta .chip {
  font-size: 12px;
  color: var(--text-light);
  background: var(--bg);
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.newgame-meta .chip i { color: var(--primary); font-size: 11px; }

.newgame-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.newgame-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.newgame-rating {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stars { color: #f59e0b; font-size: 13px; letter-spacing: 1px; }

.rating-num { font-weight: 700; color: var(--text); font-size: 15px; }

.rating-count { font-size: 12px; color: var(--text-lighter); }

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

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

/* ===== Feature / How It Works ===== */
.feature-grid .feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }

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

.feature-card:nth-child(2) .feature-icon { background: var(--accent-light); color: var(--accent); }
.feature-card:nth-child(3) .feature-icon { background: #e8fbf0; color: var(--success); }
.feature-card:nth-child(4) .feature-icon { background: #fff7e6; color: var(--warning); }

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ===== Quick List ===== */
.quick-list-wrap {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.quick-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.quick-item:last-child { border-bottom: none; padding-bottom: 0; }
.quick-item:first-child { padding-top: 0; }

.quick-num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quick-item:nth-child(2) .quick-num { background: var(--accent-light); color: var(--accent); }
.quick-item:nth-child(3) .quick-num { background: #e8fbf0; color: var(--success); }

.quick-content { flex: 1; }
.quick-content h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.quick-content p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

.quick-arrow { color: var(--text-lighter); font-size: 18px; align-self: center; }

@media (max-width: 768px) {
  .quick-list-wrap { padding: 24px; }
  .quick-item { flex-wrap: wrap; gap: 12px; }
  .quick-arrow { display: none; }
}

/* ===== Stats ===== */
.stats-section {
  background: linear-gradient(135deg, #1d1333 0%, #3b1d7a 100%);
  padding: 70px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}

.stats-section .grid-container { position: relative; z-index: 1; }

.stat-item { text-align: center; padding: 30px 20px; }

.stat-num {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
  line-height: 1.2;
}

.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}

@media (max-width: 768px) {
  .stat-num { font-size: 34px; }
}

/* ===== Info Blocks ===== */
.info-block {
  display: flex;
  align-items: center;
  gap: 50px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
}

.info-block:nth-child(even) { flex-direction: row-reverse; }

.info-img {
  flex: 0 0 40%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.info-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.info-content { flex: 1; }

.info-content .tag-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.info-content h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.4;
}

.info-content p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.info-list {
  list-style: none;
  margin: 0;
}

.info-list li {
  padding: 6px 0;
  font-size: 14px;
  color: var(--text-light);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.info-list li i { color: var(--success); font-size: 14px; margin-top: 4px; }

@media (max-width: 900px) {
  .info-block, .info-block:nth-child(even) { flex-direction: column; gap: 24px; padding: 28px; }
  .info-img { flex: 0 0 auto; width: 100%; }
  .info-content h2 { font-size: 20px; }
}

/* ===== CTA ===== */
.cta-section {
  padding: 70px 0;
  background: linear-gradient(135deg, #6c3ef5 0%, #ff6b35 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  border: 40px solid rgba(255,255,255,0.1);
  border-radius: 50%;
}

.cta-box {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  line-height: 1.7;
}

.cta-box .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  font-size: 16px;
}

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

@media (max-width: 768px) {
  .cta-box h2 { font-size: 24px; }
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 850px;
  margin: 0 auto;
}

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

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

.faq-q {
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  transition: var(--transition);
}

.faq-q:hover { color: var(--primary); }

.faq-q i {
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-a p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 44px;
}

.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: 18px;
  font-size: 20px;
}

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

.footer-brand .brand-logo .logo-icon {
  background: var(--accent);
  box-shadow: 0 8px 25px rgba(255,107,53,0.4);
}

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

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-links {
  list-style: none;
  margin: 0;
}

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

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

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 520px) {
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Focus Accessibility ===== */
a:focus, button:focus, input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn:focus { outline: 2px solid #fff; outline-offset: 3px; }

/* ===== Misc ===== */
.text-gradient { background: linear-gradient(135deg, #fff 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.divider { border: none; height: 1px; background: var(--border); margin: 40px 0; }

@media (max-width: 520px) {
  .brand-logo { font-size: 18px; }
  .header-inner { padding: 12px 0; }
  .page-hero h1 { font-size: 28px; }
  .section-title { font-size: 23px; }
}

/* Foundation focus fix */
.row { max-width: 1200px; }

/* roulang page: article */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #eef2ff;
  --accent: #06b6d4;
  --accent-light: #ecfeff;
  --dark: #0f172a;
  --dark-bg: #101828;
  --bg: #f5f7fb;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --text-weak: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, .12);
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --transition: all .25s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.site-header { background: rgba(255, 255, 255, .92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { height: 76px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--dark); letter-spacing: .3px; }
.brand-logo .logo-icon { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: 0 4px 12px rgba(79, 70, 229, .35); }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
.nav-link { padding: 9px 18px; border-radius: 50px; font-weight: 600; font-size: 15px; color: var(--text-light); transition: var(--transition); }
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }
.header-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; padding: 10px 22px; border-radius: 50px; font-weight: 600; font-size: 14px; box-shadow: 0 4px 14px rgba(79, 70, 229, .3); transition: var(--transition); }
.header-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(79, 70, 229, .4); color: #fff; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--text); cursor: pointer; padding: 8px; }

.page-banner { position: relative; background-size: cover; background-position: center; padding: 88px 0 72px; }
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15, 23, 42, .86), rgba(15, 23, 42, .65)); }
.banner-content { position: relative; z-index: 2; color: #fff; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, .75); margin-bottom: 24px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255, 255, 255, .75); transition: var(--transition); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; opacity: .6; }
.banner-content h1 { font-size: 38px; font-weight: 800; line-height: 1.35; margin-bottom: 18px; letter-spacing: .5px; text-shadow: 0 2px 12px rgba(0, 0, 0, .25); }
.article-meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.meta-item { display: inline-flex; align-items: center; gap: 6px; background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .18); padding: 5px 14px; border-radius: 30px; font-size: 13px; color: rgba(255, 255, 255, .9); }
.meta-item i { font-size: 12px; }

.article-main-section { padding: 56px 0 32px; }
.article-panel { background: var(--card-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 40px 44px; border: 1px solid rgba(226, 232, 240, .6); }
.article-content-body { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-content-body h2 { font-size: 26px; font-weight: 700; margin: 36px 0 16px; color: var(--dark); padding-left: 16px; border-left: 4px solid var(--primary); }
.article-content-body h3 { font-size: 21px; font-weight: 700; margin: 28px 0 12px; color: var(--dark); }
.article-content-body p { margin-bottom: 18px; }
.article-content-body ul, .article-content-body ol { margin: 0 0 20px 20px; }
.article-content-body ul li { list-style: disc; margin-bottom: 8px; }
.article-content-body ol li { list-style: decimal; margin-bottom: 8px; }
.article-content-body img { border-radius: var(--radius-md); margin: 20px 0; box-shadow: var(--shadow-sm); }
.article-content-body blockquote { border-left: 4px solid var(--accent); background: var(--accent-light); padding: 16px 20px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 20px 0; color: var(--text-light); }
.article-footer-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--border); }
.tag { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-light); color: var(--primary); padding: 6px 14px; border-radius: 30px; font-size: 13px; font-weight: 600; }
.tag i { font-size: 11px; }
.not-found { text-align: center; padding: 48px 20px; }
.not-found i { font-size: 52px; color: var(--text-weak); margin-bottom: 18px; }
.not-found h2 { font-size: 26px; margin-bottom: 12px; }
.not-found p { color: var(--text-light); margin-bottom: 22px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; padding: 12px 28px; border-radius: 50px; font-weight: 600; transition: var(--transition); box-shadow: 0 4px 14px rgba(79, 70, 229, .3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; }

.article-sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--card-bg); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid rgba(226, 232, 240, .5); padding: 26px; }
.sidebar-card h3 { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 16px; position: relative; padding-bottom: 12px; }
.sidebar-card h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 32px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.sidebar-cat ul { display: flex; flex-direction: column; gap: 4px; }
.sidebar-cat li a { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 10px; font-size: 14px; font-weight: 500; color: var(--text); transition: var(--transition); }
.sidebar-cat li a:hover { background: var(--primary-light); color: var(--primary); padding-left: 20px; }
.sidebar-cat li a i { width: 30px; height: 30px; background: var(--primary-light); color: var(--primary); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }
.sidebar-img img { border-radius: 10px; margin-bottom: 14px; width: 100%; object-fit: cover; }
.sidebar-img p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 12px; }
.btn-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 14px; font-weight: 600; }
.btn-link:hover { color: var(--primary-dark); gap: 10px; }
.sidebar-tips { background: linear-gradient(135deg, var(--primary-light), var(--accent-light)); border: none; }
.sidebar-tips p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

.related-section { padding: 64px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 700; padding: 6px 18px; border-radius: 30px; margin-bottom: 14px; letter-spacing: 1px; }
.section-head h2 { font-size: 30px; font-weight: 800; color: var(--dark); }
.section-head p { color: var(--text-light); font-size: 15px; max-width: 640px; margin: 10px auto 0; }
.related-card { background: var(--card-bg); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid rgba(226, 232, 240, .6); transition: var(--transition); }
.related-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.related-card img { width: 100%; height: 190px; object-fit: cover; }
.related-card-body { padding: 22px; }
.related-card-body .related-cat { font-size: 12px; color: var(--primary); font-weight: 700; background: var(--primary-light); padding: 4px 10px; border-radius: 20px; display: inline-block; margin-bottom: 10px; }
.related-card-body h3 { font-size: 16px; line-height: 1.5; font-weight: 700; color: var(--dark); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 48px; }
.related-card-body p { font-size: 13px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.related-card-body .related-link { color: var(--primary); font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.related-card-body .related-link:hover { gap: 8px; }

.feature-dark { background: var(--dark-bg); padding: 72px 0; }
.feature-dark .section-head h2 { color: #fff; }
.feature-dark .section-head p { color: rgba(255, 255, 255, .6); }
.feature-card { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius-md); padding: 30px 26px; transition: var(--transition); text-align: center; }
.feature-card:hover { background: rgba(255, 255, 255, .1); transform: translateY(-6px); }
.feature-icon { width: 60px; height: 60px; border-radius: 16px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; color: #fff; font-size: 24px; box-shadow: 0 8px 24px rgba(79, 70, 229, .4); }
.feature-card h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: rgba(255, 255, 255, .6); font-size: 14px; line-height: 1.7; }

.faq-section { padding: 72px 0; }
.faq-panel { max-width: 860px; margin: 0 auto; }
.accordion { background: transparent; border: none; }
.accordion-item { margin-bottom: 14px; border: 1px solid var(--border); border-radius: var(--radius-md) !important; overflow: hidden; background: var(--card-bg) !important; transition: var(--transition); }
.accordion-item:hover { box-shadow: var(--shadow-sm); }
.accordion-title { background: var(--card-bg) !important; color: var(--text) !important; font-size: 15px; font-weight: 600; padding: 18px 22px !important; border: none !important; display: flex; align-items: center; gap: 12px; }
.accordion-title::before { content: "\f059"; font-family: "Font Awesome 6 Free"; font-weight: 400; color: var(--primary); }
.accordion-title:hover, .accordion-title:focus { background: var(--primary-light) !important; color: var(--primary) !important; }
.accordion-content { background: var(--card-bg); color: var(--text-light); padding: 0 22px 20px 46px; font-size: 14px; line-height: 1.8; border: none !important; }

.cta-section { position: relative; padding: 80px 0; background-size: cover; background-position: center; }
.cta-overlay { position: absolute; inset: 0; background: rgba(15, 23, 42, .8); }
.cta-content { position: relative; z-index: 2; text-align: center; color: #fff; max-width: 720px; margin: 0 auto; }
.cta-content h2 { font-size: 34px; font-weight: 800; margin-bottom: 16px; }
.cta-content p { font-size: 16px; color: rgba(255, 255, 255, .75); margin-bottom: 28px; }
.cta-btn { display: inline-flex; align-items: center; gap: 10px; background: #fff; color: var(--primary); padding: 14px 34px; border-radius: 50px; font-weight: 700; font-size: 15px; box-shadow: 0 8px 30px rgba(0, 0, 0, .2); transition: var(--transition); }
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0, 0, 0, .3); color: var(--primary-dark); }

.site-footer { background: var(--dark-bg); color: rgba(255, 255, 255, .7); padding: 60px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .5); max-width: 360px; }
.footer-title { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, .55); transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 24px; font-size: 13px; color: rgba(255, 255, 255, .35); flex-wrap: wrap; gap: 10px; }

@media screen and (max-width: 1024px) {
  .article-panel { padding: 32px; }
  .banner-content h1 { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media screen and (max-width: 768px) {
  .header-inner { height: 66px; }
  .site-nav { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 8px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); }
  .site-nav.open { display: flex; }
  .nav-link { display: block; padding: 12px 16px; font-size: 16px; border-radius: 10px; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .page-banner { padding: 64px 0 48px; }
  .banner-content h1 { font-size: 26px; }
  .article-main-section { padding: 36px 0 24px; }
  .article-panel { padding: 24px 20px; }
  .article-content-body { font-size: 15px; line-height: 1.85; }
  .article-content-body h2 { font-size: 21px; }
  .related-card img { height: 170px; }
  .feature-dark { padding: 52px 0; }
  .faq-section { padding: 52px 0; }
  .cta-section { padding: 56px 0; }
  .cta-content h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-sidebar { position: static; margin-top: 32px; }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .banner-content h1 { font-size: 22px; }
  .article-meta { gap: 10px; }
  .meta-item { font-size: 12px; padding: 4px 10px; }
  .article-panel { padding: 20px 16px; border-radius: 14px; }
  .related-card img { height: 150px; }
  .section-head h2 { font-size: 24px; }
  .cta-content h2 { font-size: 22px; }
  .cta-btn { padding: 12px 24px; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #818cf8;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --dark-bg: #0b1120;
  --dark-bg-2: #131c36;
  --light-bg: #f5f7fd;
  --white: #ffffff;
  --text-main: #0f172a;
  --text-muted: #5b6478;
  --border: #e4e9f2;
  --radius-lg: 22px;
  --radius-md: 15px;
  --radius-sm: 10px;
  --shadow-xs: 0 2px 8px rgba(15, 23, 42, .05);
  --shadow-sm: 0 6px 20px rgba(15, 23, 42, .07);
  --shadow-md: 0 16px 42px rgba(15, 23, 42, .10);
  --shadow-lg: 0 30px 70px rgba(79, 70, 229, .16);
  --section-space: 96px;
  --header-height: 80px;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .25s ease; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(79, 70, 229, .45);
  outline-offset: 2px;
  border-radius: 6px;
}
::selection { background: rgba(79, 70, 229, .18); }

/* ========== 容器与段距 ========== */
.grid-container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.section { padding: var(--section-space) 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--primary);
  background: rgba(79, 70, 229, .08);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 16px;
}
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; line-height: 1.3; color: var(--text-main); letter-spacing: -1px; margin-bottom: 12px; }
.section-subtitle { font-size: 16px; color: var(--text-muted); line-height: 1.8; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-weight: 700; font-size: 15px; line-height: 1;
  padding: 14px 30px; border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer; transition: all .28s ease;
  white-space: nowrap;
}
.btn i { font-size: 15px; }
.btn-main { background: var(--primary); color: #fff; box-shadow: 0 10px 28px rgba(79, 70, 229, .35); }
.btn-main:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 14px 36px rgba(79, 70, 229, .42); }
.btn-main:active { transform: translateY(0); box-shadow: 0 6px 18px rgba(79, 70, 229, .30); }
.btn-glass { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .35); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn-glass:hover { background: rgba(255, 255, 255, .24); color: #fff; border-color: rgba(255, 255, 255, .55); transform: translateY(-2px); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-dark { background: var(--dark-bg); color: #fff; }
.btn-dark:hover { background: var(--dark-bg-2); color: #fff; transform: translateY(-2px); }

/* ========== 导航 ========== */
.site-header {
  position: sticky; top: 0; z-index: 500;
  height: var(--header-height);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(228, 233, 242, .9);
  box-shadow: 0 4px 20px rgba(15, 23, 42, .04);
}
.site-header .grid-container { height: 100%; }
.header-inner { height: var(--header-height); display: flex; align-items: center; justify-content: space-between; }
.brand-logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 800; color: var(--dark-bg);
  letter-spacing: -.5px; line-height: 1.2;
}
.logo-icon {
  width: 40px; height: 40px; flex: 0 0 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-size: 18px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(79, 70, 229, .35);
}
.site-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-block; padding: 9px 18px;
  font-size: 15px; font-weight: 600; color: var(--text-muted);
  border-radius: 999px; transition: all .25s ease;
}
.nav-link:hover { color: var(--primary); background: rgba(79, 70, 229, .07); }
.nav-link.active { color: var(--primary); background: rgba(79, 70, 229, .12); }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 11px 22px; border-radius: 999px;
  box-shadow: 0 8px 22px rgba(79, 70, 229, .30);
  transition: all .28s ease;
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(79, 70, 229, .42); color: #fff; }
.nav-toggle {
  display: none; width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: var(--light-bg); color: var(--text-main);
  border: 1px solid var(--border); border-radius: 12px;
  font-size: 18px; cursor: pointer; transition: all .25s ease;
  margin-left: 10px;
}
.nav-toggle:hover { background: rgba(79, 70, 229, .08); border-color: rgba(79, 70, 229, .30); color: var(--primary); }

/* ========== 分类页 Hero ========== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(11, 17, 32, .94), rgba(30, 27, 75, .82)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  padding: 110px 0 100px;
  overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; bottom: -60px; right: -40px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(129, 140, 248, .35), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; max-width: 800px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 1px;
  color: #fff; background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .25);
  padding: 7px 18px; border-radius: 999px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  margin-bottom: 22px;
}
.hero-badge i { color: var(--accent-light); }
.hero-title {
  font-size: clamp(32px, 5vw, 52px); font-weight: 800;
  line-height: 1.2; color: #fff; letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-title span { color: var(--accent-light); }
.hero-desc {
  font-size: 16px; line-height: 1.9; color: rgba(255, 255, 255, .78);
  max-width: 640px; margin-bottom: 36px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 52px; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 0;
  max-width: 600px;
}
.stat-item {
  flex: 1 1 120px; position: relative;
  padding: 18px 24px 18px 0;
}
.stat-item + .stat-item { padding-left: 24px; }
.stat-item + .stat-item::before {
  content: ''; position: absolute; top: 20px; bottom: 20px; left: 0;
  width: 1px; background: rgba(255, 255, 255, .18);
}
.stat-item strong { display: block; font-size: 28px; font-weight: 800; color: #fff; line-height: 1.3; letter-spacing: -1px; }
.stat-item span { display: block; font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 4px; letter-spacing: .5px; }

/* ========== 标签导览 ========== */
.guide-tags { padding: 34px 0; border-bottom: 1px solid var(--border); }
.tag-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.tag-chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--text-muted);
  background: var(--light-bg); border: 1px solid transparent;
  padding: 9px 20px; border-radius: 999px;
  transition: all .25s ease;
}
.tag-chip i { font-size: 13px; color: var(--primary-light); }
.tag-chip:hover { color: var(--primary); border-color: rgba(79, 70, 229, .25); background: rgba(79, 70, 229, .05); transform: translateY(-2px); }
.tag-chip.active { color: #fff; background: var(--primary); box-shadow: 0 8px 20px rgba(79, 70, 229, .28); }
.tag-chip.active i { color: #fff; }

/* ========== 攻略精选卡片 ========== */
.guide-grid { row-gap: 32px; }
.guide-card {
  height: 100%; display: flex; flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(79, 70, 229, .25);
}
.card-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--light-bg); }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.guide-card:hover .card-cover img { transform: scale(1.06); }
.card-cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11, 17, 32, .28), transparent 45%);
}
.card-cat {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  display: inline-block; font-size: 12px; font-weight: 700;
  color: #fff; background: rgba(79, 70, 229, .9);
  padding: 5px 14px; border-radius: 999px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.card-body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.card-title { font-size: 19px; font-weight: 700; line-height: 1.5; color: var(--text-main); margin-bottom: 10px; letter-spacing: -.3px; transition: color .25s ease; }
.guide-card:hover .card-title { color: var(--primary); }
.card-desc { font-size: 14px; line-height: 1.8; color: var(--text-muted); margin-bottom: 18px; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border); }
.card-meta span { font-size: 13px; color: var(--text-muted); }
.card-meta span i { color: var(--primary-light); margin-right: 5px; }
.card-more {
  font-size: 13px; font-weight: 700; color: var(--primary);
  display: inline-flex; align-items: center; gap: 5px; transition: gap .25s ease;
}
.card-more:hover { gap: 9px; }

/* ========== 攻略教程步骤 ========== */
.howto-section { background: var(--dark-bg); position: relative; overflow: hidden; }
.howto-section::before {
  content: ''; position: absolute; top: -120px; left: -80px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(79, 70, 229, .35), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.howto-section .section-title { color: #fff; }
.howto-section .section-subtitle { color: rgba(255, 255, 255, .65); }
.howto-section .section-eyebrow {
  color: var(--accent-light); background: rgba(255, 255, 255, .10);
}
.steps-row { position: relative; z-index: 2; row-gap: 28px; }
.step-item {
  height: 100%; position: relative;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: all .3s ease;
}
.step-item:hover { background: rgba(255, 255, 255, .10); border-color: rgba(255, 255, 255, .22); transform: translateY(-4px); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px;
  font-size: 17px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 14px; margin-bottom: 20px;
  box-shadow: 0 10px 24px rgba(79, 70, 229, .35);
}
.step-item h3 { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; letter-spacing: -.2px; }
.step-item p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .68); }

/* ========== 排行板块 ========== */
.ranking-section { background: var(--light-bg); }
.ranking-image-wrap {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}
.ranking-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.ranking-image-wrap::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11, 17, 32, .55), transparent 50%);
}
.ranking-overlay {
  position: absolute; left: 24px; right: 24px; bottom: 24px; z-index: 2; color: #fff;
}
.ranking-overlay h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; letter-spacing: -.5px; }
.ranking-overlay p { font-size: 14px; color: rgba(255, 255, 255, .8); }
.ranking-list { display: flex; flex-direction: column; gap: 14px; }
.ranking-item {
  display: flex; align-items: center; gap: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-xs);
  transition: all .28s ease;
}
.ranking-item:hover { transform: translateX(6px); box-shadow: var(--shadow-md); border-color: rgba(79, 70, 229, .30); }
.rank-num {
  flex: 0 0 44px; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800;
  color: var(--primary); background: rgba(79, 70, 229, .10);
  border-radius: 12px;
}
.ranking-item:nth-child(1) .rank-num {
  color: #fff; background: linear-gradient(135deg, #f59e0b, #fbbf24);
  box-shadow: 0 8px 20px rgba(245, 158, 11, .35);
}
.ranking-item:nth-child(2) .rank-num {
  color: #fff; background: linear-gradient(135deg, #64748b, #94a3b8);
  box-shadow: 0 8px 20px rgba(100, 116, 139, .3);
}
.ranking-item:nth-child(3) .rank-num {
  color: #fff; background: linear-gradient(135deg, #b45309, #d97706);
  box-shadow: 0 8px 20px rgba(180, 83, 9, .3);
}
.rank-info { flex: 1; min-width: 0; }
.rank-info h4 {
  font-size: 15px; font-weight: 700; color: var(--text-main);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-bottom: 4px;
}
.rank-info p { font-size: 13px; color: var(--text-muted); }
.rank-badge {
  flex: 0 0 auto;
  font-size: 12px; font-weight: 700; color: var(--primary);
  background: rgba(79, 70, 229, .08);
  padding: 5px 14px; border-radius: 999px;
}

/* ========== FAQ ========== */
.faq-section { background: var(--white); }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .28s ease, border-color .28s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(79, 70, 229, .22); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 26px;
  font-size: 16px; font-weight: 700; color: var(--text-main);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
  font-size: 14px; color: var(--primary);
  width: 30px; height: 30px; flex: 0 0 30px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(79, 70, 229, .10);
  border-radius: 50%;
  transition: transform .3s ease;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] { border-color: rgba(79, 70, 229, .30); box-shadow: var(--shadow-sm); }
.faq-answer { padding: 0 26px 24px; font-size: 15px; line-height: 1.9; color: var(--text-muted); }

/* ========== CTA ========== */
.cta-section { padding: var(--section-space) 0; }
.cta-box {
  position: relative;
  background: linear-gradient(135deg, rgba(79, 70, 229, .95), rgba(55, 48, 163, .92)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border-radius: 28px;
  padding: 68px 56px;
  text-align: center; color: #fff;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; top: -100px; right: -60px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255, 255, 255, .28), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.cta-box h2 { font-size: clamp(26px, 3.5vw, 38px); font-weight: 800; letter-spacing: -1px; position: relative; z-index: 2; margin-bottom: 14px; }
.cta-box p { font-size: 16px; line-height: 1.8; color: rgba(255, 255, 255, .85); max-width: 580px; margin: 0 auto 32px; position: relative; z-index: 2; }
.cta-box .btn { position: relative; z-index: 2; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark-bg);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .10);
}
.footer-brand .brand-logo { color: #fff; margin-bottom: 18px; }
.footer-desc { font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, .55); max-width: 340px; }
.footer-title {
  font-size: 15px; font-weight: 700; color: #fff;
  margin-bottom: 18px; letter-spacing: .5px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links li a {
  font-size: 14px; color: rgba(255, 255, 255, .55);
  transition: all .25s ease; display: inline-flex; align-items: center; gap: 8px;
}
.footer-links li a:hover { color: var(--accent-light); padding-left: 5px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding-top: 28px;
  font-size: 13px; color: rgba(255, 255, 255, .4);
}
.footer-bottom span:last-child { opacity: .6; }

/* ========== 响应式断点 ========== */
@media (max-width: 1024px) {
  :root { --section-space: 80px; }
  .howto-section .step-item { padding: 26px 22px; }
  .cta-box { padding: 54px 36px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed; top: calc(var(--header-height) + 10px); right: -280px; z-index: 400;
    width: 240px; background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    flex-direction: column; align-items: stretch; gap: 6px;
    padding: 18px; transition: right .32s ease;
    border: 1px solid var(--border);
  }
  .site-nav.open { right: 16px; }
  .nav-link { display: block; padding: 12px 16px; border-radius: 12px; }
  .nav-link:hover { background: rgba(79, 70, 229, .07); }
  .nav-link.active { background: rgba(79, 70, 229, .12); }
  .header-cta { display: none; }
}

@media (max-width: 768px) {
  :root { --section-space: 64px; }
  .page-hero { padding: 84px 0 72px; }
  .hero-stats { gap: 12px; }
  .stat-item { flex: 1 1 100%; padding: 12px 0 !important; }
  .stat-item + .stat-item::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .steps-row .cell { margin-bottom: 8px; }
}

@media (max-width: 520px) {
  :root { --section-space: 56px; }
  body { font-size: 15px; }
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .brand-logo { font-size: 17px; }
  .logo-icon { width: 36px; height: 36px; flex-basis: 36px; font-size: 15px; }
  .page-hero { padding: 72px 0 60px; }
  .hero-title { font-size: 30px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .stat-item strong { font-size: 24px; }
  .tag-chip { padding: 8px 15px; font-size: 13px; }
  .card-body { padding: 20px; }
  .card-title { font-size: 17px; }
  .ranking-section .ranking-item { padding: 14px 16px; gap: 12px; }
  .rank-num { flex-basis: 38px; width: 38px; height: 38px; font-size: 16px; }
  .rank-badge { display: none; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-answer { padding: 0 20px 20px; }
  .cta-box { padding: 44px 24px; border-radius: 20px; }
  .cta-box .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category3 */
:root {
  --primary: #6D5EF3;
  --primary-dark: #4F3FD8;
  --primary-light: #EDEBFE;
  --accent: #F6B73C;
  --accent-hot: #F97316;
  --accent-2: #22D3EE;
  --dark-bg: #0B1120;
  --dark-bg-2: #121A2E;
  --text: #1E293B;
  --text-weak: #64748B;
  --border: #E8EAF1;
  --card-bg: #FFFFFF;
  --bg-light: #F6F7FB;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(109, 94, 243, 0.08);
  --shadow-hover: 0 16px 40px rgba(109, 94, 243, 0.16);
  --transition: 0.3s ease;
  --space-section: 96px;
  --space-section-mobile: 60px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 1rem;
}

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

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

ul,
ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.grid-container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 13px 0;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

.header-inner {
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.24rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hot));
  color: #fff;
  font-size: 1.05rem;
  box-shadow: 0 6px 16px rgba(246, 183, 60, 0.3);
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.nav-link {
  padding: 9px 18px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  font-size: 0.94rem;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 6px 16px rgba(109, 94, 243, 0.35);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hot));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 8px 20px rgba(246, 183, 60, 0.3);
  transition: var(--transition);
  white-space: nowrap;
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(246, 183, 60, 0.42);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
}

.page-banner {
  position: relative;
  padding: 130px 0 110px;
  background: linear-gradient(135deg, rgba(11, 17, 32, 0.92), rgba(36, 24, 108, 0.82)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
}

.banner-inner {
  max-width: 720px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
  margin-bottom: 18px;
}

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

.breadcrumb i {
  font-style: normal;
  color: rgba(255, 255, 255, 0.35);
}

.banner-title {
  font-size: 2.9rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 14px;
  background: linear-gradient(90deg, #fff, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.banner-sub {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.08rem;
  line-height: 1.8;
  max-width: 620px;
  margin-bottom: 30px;
}

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

.btn-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hot));
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 10px 24px rgba(246, 183, 60, 0.35);
  transition: var(--transition);
}

.btn-banner:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(246, 183, 60, 0.45);
  color: #fff;
}

.btn-banner-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: 999px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

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

.stats-bar {
  margin-top: -58px;
  position: relative;
  z-index: 5;
  padding-bottom: 10px;
}

.stats-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 18px 24px;
  text-align: center;
  border: 1px solid var(--border);
  height: 100%;
  transition: var(--transition);
}

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

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  color: var(--text-weak);
  font-size: 0.88rem;
  margin-top: 6px;
  font-weight: 500;
}

.section {
  padding: var(--space-section) 0;
}

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

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

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

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark .section-tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--accent);
}

.section-head {
  text-align: center;
  margin-bottom: 52px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark-bg);
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.section-desc {
  color: var(--text-weak);
  max-width: 620px;
  margin: 14px auto 0;
  font-size: 0.98rem;
  line-height: 1.8;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

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

.feature-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f1f2f6;
}

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

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

.feature-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.feature-body h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--dark-bg);
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-body p {
  color: var(--text-weak);
  font-size: 0.92rem;
  line-height: 1.75;
  flex: 1;
}

.feature-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.feature-meta span {
  color: var(--text-weak);
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-feature {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  box-shadow: 0 6px 14px rgba(109, 94, 243, 0.3);
  transition: var(--transition);
}

.btn-feature:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(109, 94, 243, 0.4);
  color: #fff;
}

.badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.badge-hot {
  background: linear-gradient(135deg, #F43F5E, #DC2626);
}

.badge-new {
  background: linear-gradient(135deg, #10B981, #059669);
}

.badge-time {
  background: linear-gradient(135deg, #F59E0B, #EA580C);
}

.activity-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

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

.activity-card .cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f1f2f6;
}

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

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

.activity-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.activity-type {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  align-self: flex-start;
  margin-bottom: 12px;
}

.activity-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--dark-bg);
  margin-bottom: 8px;
  line-height: 1.4;
}

.activity-body p {
  color: var(--text-weak);
  font-size: 0.9rem;
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 16px;
}

.activity-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 0.84rem;
  color: var(--text-weak);
}

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

.btn-activity {
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.82rem;
  transition: var(--transition);
}

.btn-activity:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

.timeline-wrap {
  position: relative;
  max-width: 840px;
  margin: 0 auto;
  padding-left: 34px;
}

.timeline-wrap::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 22px 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}

.timeline-item:hover {
  box-shadow: var(--shadow);
  transform: translateX(4px);
  border-color: rgba(109, 94, 243, 0.35);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--primary), 0 4px 10px rgba(109, 94, 243, 0.35);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-hot);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: inline-block;
  padding: 3px 12px;
  background: #FFF7ED;
  border-radius: 999px;
  margin-bottom: 8px;
}

.timeline-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark-bg);
  margin-bottom: 6px;
}

.timeline-item p {
  color: var(--text-weak);
  font-size: 0.9rem;
  line-height: 1.7;
}

.step-card {
  text-align: center;
  padding: 34px 22px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  height: 100%;
  transition: var(--transition);
}

.step-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
  border-color: rgba(246, 183, 60, 0.4);
}

.step-num {
  width: 54px;
  height: 54px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(109, 94, 243, 0.35);
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.step-card p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  line-height: 1.7;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  transition: border-color var(--transition);
}

.faq-item.active {
  border-color: rgba(109, 94, 243, 0.4);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: #fff;
  border: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--primary);
  flex-shrink: 0;
  font-size: 1rem;
}

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

.faq-question:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

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

.faq-item.active .faq-answer {
  max-height: 360px;
}

.faq-answer p {
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 0.92rem;
  line-height: 1.85;
}

.cta-section {
  background: linear-gradient(135deg, rgba(11, 17, 32, 0.95), rgba(79, 63, 216, 0.88)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  padding: 90px 0;
  color: #fff;
  text-align: center;
}

.cta-title {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.cta-desc {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.02rem;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn-primary-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 34px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hot));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 10px 24px rgba(246, 183, 60, 0.35);
  transition: var(--transition);
}

.btn-primary-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(246, 183, 60, 0.45);
  color: #fff;
}

.btn-outline-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  border-radius: 999px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

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

.site-footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand .brand-logo {
  color: #fff;
  font-size: 1.2rem;
}

.footer-desc {
  margin-top: 16px;
  font-size: 0.92rem;
  line-height: 1.85;
  max-width: 420px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.footer-links li {
  margin-bottom: 11px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

.grid-margin-x {
  margin-left: -10px;
  margin-right: -10px;
}

.grid-margin-x > .cell {
  padding-left: 10px;
  padding-right: 10px;
}

@media (max-width: 1024px) {
  :root {
    --space-section: 76px;
  }

  .banner-title {
    font-size: 2.4rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--dark-bg-2);
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.35);
  }

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

  .nav-toggle {
    display: block;
  }

  .site-nav .nav-link {
    display: block;
    width: 100%;
    padding: 13px 18px;
    border-radius: 10px;
  }

  .site-nav .nav-link.active {
    background: rgba(109, 94, 243, 0.25);
    color: #fff;
    box-shadow: none;
  }

  .header-inner .cell.auto {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 58px;
  }

  .page-banner {
    padding: 100px 0 90px;
  }

  .banner-title {
    font-size: 2rem;
  }

  .banner-sub {
    font-size: 1rem;
  }

  .stats-bar {
    margin-top: -40px;
  }

  .stats-card {
    padding: 22px 14px 18px;
    margin-bottom: 14px;
  }

  .stat-num {
    font-size: 1.6rem;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .cta-title {
    font-size: 1.7rem;
  }

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

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

@media (max-width: 640px) {
  .header-cta {
    padding: 10px 14px;
    font-size: 0;
  }

  .header-cta i {
    font-size: 1rem;
    margin-right: 0;
  }

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

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 0.95rem;
  }

  .page-banner {
    padding: 84px 0 76px;
  }

  .banner-title {
    font-size: 1.75rem;
  }

  .banner-actions {
    flex-direction: column;
    align-items: stretch;
    max-width: 320px;
  }

  .btn-banner,
  .btn-banner-ghost {
    justify-content: center;
    padding: 12px 24px;
  }

  .stat-num {
    font-size: 1.4rem;
  }

  .timeline-wrap {
    padding-left: 28px;
  }

  .timeline-item {
    padding: 18px 18px;
  }

  .timeline-item::before {
    left: -25px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
    max-width: 320px;
    margin: 28px auto 0;
  }

  .btn-primary-main,
  .btn-outline-main {
    justify-content: center;
  }
}