/* roulang page: index */
:root {
  --bg-main: #081426;
  --bg-secondary: #0B1E3F;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-card-hover: rgba(255, 255, 255, 0.10);
  --border-card: rgba(255, 255, 255, 0.10);
  --border-hover: rgba(0, 168, 255, 0.40);
  --brand: #00A8FF;
  --brand-secondary: #7B5CFF;
  --gradient-brand: linear-gradient(135deg, #00A8FF, #7B5CFF);
  --success: #00E5A0;
  --warning: #FFB800;
  --text-main: #E8F0FF;
  --text-secondary: #8CA3C8;
  --text-weak: #5A7399;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.20);
  --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.30);
  --shadow-btn: 0 4px 24px rgba(0, 168, 255, 0.30);
  --transition-base: all 0.25s ease;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition-base); }
button { font-family: inherit; cursor: pointer; border: none; outline: none; }
input { font-family: inherit; outline: none; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding-left: clamp(16px, 4vw, 48px); padding-right: clamp(16px, 4vw, 48px); }
.section { padding: clamp(64px, 10vw, 120px) 0; }
.section-alt { background: var(--bg-secondary); position: relative; }
.text-gradient { background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius-btn); font-weight: 600; font-size: 1rem;
  transition: var(--transition-base); border: 1px solid transparent; letter-spacing: 0.02em;
}
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-2px); box-shadow: 0 6px 32px rgba(0, 168, 255, 0.50); }
.btn-primary:active { transform: translateY(0); filter: brightness(0.95); }
.btn-outline { background: transparent; color: var(--text-main); border-color: rgba(255, 255, 255, 0.25); }
.btn-outline:hover { border-color: var(--brand); background: rgba(0, 168, 255, 0.08); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-ghost { background: rgba(0, 168, 255, 0.12); color: var(--brand); padding: 8px 20px; font-size: 0.875rem; border-radius: 10px; }
.btn-ghost:hover { background: rgba(0, 168, 255, 0.22); transform: translateY(-1px); }
.btn-sm { padding: 8px 20px; font-size: 0.875rem; border-radius: 10px; height: 40px; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.8125rem; background: rgba(255, 255, 255, 0.08); color: var(--text-secondary); border: 1px solid rgba(255, 255, 255, 0.08); }
.badge-hot { background: rgba(255, 184, 0, 0.15); color: var(--warning); border-color: rgba(255, 184, 0, 0.25); }
.badge-new { background: rgba(0, 229, 160, 0.12); color: var(--success); border-color: rgba(0, 229, 160, 0.25); }
.badge-brand { background: rgba(0, 168, 255, 0.14); color: var(--brand); border-color: rgba(0, 168, 255, 0.25); }
.card {
  background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-card);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: var(--shadow-card);
  transition: var(--transition-base);
}
.card:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.section-header { margin-bottom: clamp(32px, 5vw, 56px); max-width: 720px; }
.section-header .badge { margin-bottom: 16px; }
.section-header h2 { font-size: clamp(1.5rem, 2vw + 0.75rem, 2.25rem); font-weight: 600; line-height: 1.3; margin: 12px 0; letter-spacing: 0.01em; }
.section-header p { color: var(--text-secondary); font-size: 1.0625rem; margin-top: 12px; }
/* ---------- Header & Nav ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; height: 72px; z-index: 1000;
  background: rgba(8, 20, 38, 0.82); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; font-weight: 700; white-space: nowrap; }
.brand-icon { width: 34px; height: 34px; flex-shrink: 0; }
.brand-name strong { background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; }
.brand-name span { color: var(--text-main); font-weight: 600; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a { padding: 8px 16px; font-size: 0.9375rem; color: var(--text-secondary); border-radius: 8px; position: relative; font-weight: 500; }
.nav-menu a:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.05); }
.nav-menu a.active { color: var(--brand); font-weight: 600; }
.nav-menu a.active::after { content: ''; position: absolute; left: 16px; right: 16px; bottom: 0; height: 2px; background: var(--gradient-brand); border-radius: 2px; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; }
.search-box input {
  width: 180px; height: 40px; border-radius: 20px; background: rgba(0, 0, 0, 0.30);
  border: 1px solid rgba(255, 255, 255, 0.15); color: var(--text-main); padding: 0 42px 0 16px; font-size: 0.875rem;
  transition: var(--transition-base);
}
.search-box input::placeholder { color: var(--text-weak); }
.search-box input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.15); width: 220px; }
.search-box i { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-weak); font-size: 0.875rem; pointer-events: none; }
.nav-login { color: var(--text-secondary); font-size: 0.9375rem; }
.nav-login:hover { color: var(--brand); }
.nav-cta { padding: 9px 22px; font-size: 0.9rem; border-radius: 10px; }
.hamburger { display: none; background: none; border: 1px solid rgba(255, 255, 255, 0.15); border-radius: 8px; width: 42px; height: 42px; align-items: center; justify-content: center; color: var(--text-main); font-size: 1.1rem; }
.mobile-drawer { position: fixed; top: 72px; left: 0; right: 0; bottom: 0; background: rgba(8, 20, 38, 0.98); z-index: 999; padding: 32px clamp(16px, 4vw, 48px); display: none; overflow-y: auto; }
.mobile-drawer.open { display: block; }
.mobile-drawer a { display: block; padding: 16px 8px; font-size: 1.25rem; font-weight: 600; color: var(--text-main); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.mobile-drawer a.active { color: var(--brand); }
.mobile-drawer .drawer-actions { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
/* ---------- Hero ---------- */
.hero { min-height: 92vh; display: flex; align-items: center; position: relative; padding-top: 72px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8, 20, 38, 0.95) 20%, rgba(8, 20, 38, 0.72) 55%, rgba(8, 20, 38, 0.35) 100%); }
.hero-overlay::after { content: ''; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(/%23n)' opacity='0.06'/%3E%3C/svg%3E"); }
.hero-content { position: relative; z-index: 2; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.hero-text { max-width: 560px; flex: 1; animation: fadeInUp 0.6s ease; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: var(--radius-pill); background: rgba(0, 168, 255, 0.10); border: 1px solid rgba(0, 168, 255, 0.30); color: var(--brand); font-size: 0.9375rem; margin-bottom: 24px; }
.hero h1 { font-size: clamp(2.2rem, 4vw + 1rem, 3.5rem); font-weight: 700; line-height: 1.2; margin-bottom: 20px; letter-spacing: 0.01em; }
.hero-sub { font-size: 1.125rem; color: var(--text-secondary); margin-bottom: 36px; max-width: 42ch; line-height: 1.8; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-art { position: relative; flex: 0 0 380px; height: 460px; display: flex; align-items: center; justify-content: center; }
.hero-art .glow { position: absolute; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 168, 255, 0.20) 0%, transparent 70%); filter: blur(20px); animation: pulseGlow 3s ease-in-out infinite; }
.hero-art .ring { position: absolute; width: 340px; height: 340px; border-radius: 50%; border: 1px solid rgba(0, 168, 255, 0.30); animation: spin 20s linear infinite; }
.hero-art .ring::before { content: ''; position: absolute; top: -6px; left: 50%; width: 12px; height: 12px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 16px var(--brand); }
.float-card { position: absolute; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-hover); transition: transform 0.4s ease; }
.float-card:hover { transform: translateY(-8px) rotate(0deg) !important; }
.float-card img { width: 100%; height: 100%; object-fit: cover; }
.float-card-1 { width: 150px; height: 200px; top: 16px; left: 24px; transform: rotate(-6deg); z-index: 3; }
.float-card-2 { width: 140px; height: 186px; top: 60px; right: 20px; transform: rotate(4deg); z-index: 2; }
.float-card-3 { width: 120px; height: 160px; bottom: 24px; left: 90px; transform: rotate(8deg); z-index: 1; }
.scroll-indicator { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; flex-direction: column; align-items: center; gap: 6px; color: var(--text-weak); font-size: 0.8125rem; }
.scroll-mouse { width: 26px; height: 42px; border: 2px solid rgba(255, 255, 255, 0.25); border-radius: 14px; display: flex; justify-content: center; padding-top: 6px; }
.scroll-mouse span { width: 4px; height: 8px; border-radius: 4px; background: var(--brand); animation: scrollDot 1.5s infinite; }
/* ---------- 爆款片段卡 ---------- */
.hot-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hot-card { overflow: hidden; display: flex; flex-direction: column; }
.hot-cover { position: relative; aspect-ratio: 3 / 4; overflow: hidden; border-radius: var(--radius-card) var(--radius-card) 0 0; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.hot-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(8, 20, 38, 0.80) 0%, transparent 50%); opacity: 0.7; transition: opacity 0.3s; }
.hot-card:hover .hot-cover img { transform: scale(1.05); }
.hot-card:hover .hot-cover::after { opacity: 0.9; }
.hot-badge { position: absolute; top: 12px; left: 12px; z-index: 2; }
.hot-play { position: absolute; right: 14px; bottom: 14px; z-index: 2; width: 40px; height: 40px; border-radius: 50%; background: rgba(0, 0, 0, 0.50); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.9rem; border: 1px solid rgba(255, 255, 255, 0.25); transition: var(--transition-base); }
.hot-card:hover .hot-play { background: rgba(0, 168, 255, 0.85); border-color: var(--brand); box-shadow: 0 0 24px rgba(0, 168, 255, 0.50); }
.hot-info { padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.hot-title { font-size: 0.95rem; font-weight: 600; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hot-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8125rem; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.hot-meta .trend { color: #FF6B6B; display: inline-flex; align-items: center; gap: 4px; font-size: 0.75rem; }
/* ---------- 种草清单 ---------- */
.seed-list { max-width: 960px; margin: 0 auto; }
.seed-row { display: flex; align-items: center; gap: 20px; padding: 20px 16px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); transition: var(--transition-base); border-radius: 8px; position: relative; }
.seed-row:last-child { border-bottom: none; }
.seed-row:hover { background: rgba(0, 168, 255, 0.06); }
.seed-row::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--brand); border-radius: 4px; opacity: 0; transition: var(--transition-base); }
.seed-row:hover::before { opacity: 1; }
.seed-thumb { width: 96px; height: 96px; flex-shrink: 0; border-radius: 12px; overflow: hidden; position: relative; }
.seed-thumb img { width: 100%; height: 100%; object-fit: cover; }
.seed-body { flex: 1; min-width: 0; }
.seed-title { font-size: 1rem; font-weight: 600; color: var(--text-main); margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seed-desc { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seed-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.seed-tag { padding: 2px 10px; font-size: 0.75rem; border-radius: var(--radius-pill); background: rgba(255, 255, 255, 0.07); color: var(--text-secondary); }
.seed-action { flex-shrink: 0; }
/* ---------- 评论口碑 ---------- */
.review-scroll { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; scrollbar-width: none; }
.review-scroll::-webkit-scrollbar { display: none; }
.review-card { flex: 0 0 280px; min-height: 200px; scroll-snap-align: center; padding: 24px; border-left: 4px solid var(--success); position: relative; }
.review-stars { display: flex; gap: 4px; margin-bottom: 16px; color: var(--success); font-size: 1rem; }
.review-text { font-size: 0.9375rem; color: var(--text-main); line-height: 1.8; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.review-user { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.review-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--gradient-brand); display: flex; align-items: center; justify-content: center; font-size: 0.9375rem; font-weight: 700; color: #fff; }
.review-name { font-size: 0.875rem; color: var(--text-main); font-weight: 500; }
.review-date { font-size: 0.75rem; color: var(--text-weak); margin-top: 2px; }
/* ---------- CTA ---------- */
.cta-banner { position: relative; border: 1px solid rgba(0, 168, 255, 0.40); border-radius: 24px; padding: clamp(48px, 8vw, 96px) clamp(24px, 5vw, 64px); text-align: center; overflow: hidden; background: linear-gradient(135deg, rgba(0, 168, 255, 0.08), rgba(123, 92, 255, 0.08)); box-shadow: 0 0 60px rgba(0, 168, 255, 0.15); }
.cta-banner::before { content: ''; position: absolute; bottom: -80px; left: 50%; transform: translateX(-50%); width: 400px; height: 200px; background: radial-gradient(ellipse, rgba(0, 168, 255, 0.25) 0%, transparent 70%); filter: blur(40px); }
.cta-banner h2 { font-size: clamp(1.5rem, 2vw + 0.75rem, 2.25rem); font-weight: 600; margin-bottom: 12px; }
.cta-banner p { color: var(--text-secondary); font-size: 1.0625rem; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
/* ---------- 最新资讯 ---------- */
.news-layout { display: grid; grid-template-columns: 7fr 3fr; gap: 32px; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item { display: flex; align-items: flex-start; gap: 16px; padding: 20px; border-radius: var(--radius-card); background: var(--bg-card); border: 1px solid var(--border-card); transition: var(--transition-base); }
.news-item:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateX(4px); }
.news-cover { width: 120px; height: 84px; border-radius: 12px; overflow: hidden; flex-shrink: 0; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; }
.news-content { flex: 1; min-width: 0; }
.news-cat { font-size: 0.75rem; padding: 2px 10px; border-radius: var(--radius-pill); background: rgba(0, 168, 255, 0.12); color: var(--brand); display: inline-block; margin-bottom: 6px; }
.news-cat.cat-2 { background: rgba(255, 184, 0, 0.12); color: var(--warning); }
.news-cat.cat-3 { background: rgba(0, 229, 160, 0.12); color: var(--success); }
.news-title { font-size: 1rem; font-weight: 600; margin-bottom: 4px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-title a:hover { color: var(--brand); }
.news-summary { font-size: 0.875rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.news-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8125rem; color: var(--text-weak); }
.news-meta a { color: var(--brand); font-size: 0.8125rem; display: inline-flex; align-items: center; gap: 4px; }
.news-meta a:hover { gap: 8px; }
.hot-rank { padding: 24px; border-radius: var(--radius-card); background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border-card); }
.hot-rank-title { font-size: 1.125rem; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.hot-rank-title i { color: var(--warning); }
.rank-item { display: flex; align-items: center; gap: 12px; padding: 12px 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); transition: var(--transition-base); border-radius: 8px; }
.rank-item:last-child { border-bottom: none; }
.rank-item:hover { background: rgba(0, 168, 255, 0.05); }
.rank-num { width: 24px; height: 24px; border-radius: 6px; background: rgba(255, 255, 255, 0.08); display: flex; align-items: center; justify-content: center; font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); flex-shrink: 0; }
.rank-item:nth-child(-n+4) .rank-num { background: rgba(255, 184, 0, 0.15); color: var(--warning); }
.rank-title { flex: 1; font-size: 0.875rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-heat { font-size: 0.75rem; color: var(--text-weak); font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty-state { text-align: center; padding: 60px 24px; background: rgba(255, 255, 255, 0.03); border-radius: var(--radius-card); border: 1px dashed rgba(255, 255, 255, 0.12); }
.empty-state i { font-size: 2.5rem; color: var(--text-weak); display: block; margin-bottom: 16px; }
.empty-state p { color: var(--text-secondary); font-size: 0.9375rem; }
/* ---------- FAQ ---------- */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.faq-item:first-child { border-top: 1px solid rgba(255, 255, 255, 0.08); }
.faq-q { padding: 24px 8px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 1rem; font-weight: 600; transition: var(--transition-base); border-radius: 8px; }
.faq-q:hover { background: rgba(255, 255, 255, 0.04); }
.faq-item.open .faq-q { color: var(--brand); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: rgba(0, 168, 255, 0.12); display: flex; align-items: center; justify-content: center; font-size: 0.875rem; transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(0, 168, 255, 0.25); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a-inner { padding: 0 8px 24px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.8; }
/* ---------- Footer ---------- */
.site-footer { background: #06101F; border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 64px; position: relative; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-desc { font-size: 0.9375rem; color: var(--text-secondary); max-width: 280px; line-height: 1.8; }
.footer-col h4 { font-size: 0.9375rem; font-weight: 600; color: var(--text-main); margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: 0.875rem; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul a:hover { color: var(--brand); }
.footer-col ul a::before { content: ''; width: 2px; height: 0; background: var(--brand); border-radius: 2px; transition: height 0.2s ease; }
.footer-col ul a:hover::before { height: 14px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 16px; }
.footer-contact i { color: var(--brand); margin-top: 4px; width: 16px; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 24px 0; text-align: center; font-size: 0.8125rem; color: var(--text-weak); }
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--brand); }
/* ---------- Animations ---------- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulseGlow { 0%, 100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 1; transform: scale(1.1); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes scrollDot { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(14px); } }
/* ---------- Responsive ---------- */
@media screen and (max-width: 1024px) {
  .hero-art { display: none; }
  .hero-text { max-width: 100%; }
  .hot-cards { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 768px) {
  .site-header { height: 64px; }
  .nav-wrap { height: 64px; }
  .nav-menu, .nav-login, .search-box { display: none; }
  .hamburger { display: flex; }
  .nav-cta { padding: 8px 16px; font-size: 0.8125rem; }
  .hero { min-height: 80vh; padding-top: 64px; }
  .hero h1 { font-size: clamp(1.8rem, 6vw, 2.4rem); }
  .hero-ctas .btn { width: 100%; }
  .seed-row { flex-wrap: wrap; gap: 14px; }
  .seed-thumb { width: 80px; height: 80px; }
  .seed-action { width: 100%; }
  .seed-action .btn { width: 100%; }
  .news-cover { width: 96px; height: 72px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hot-cards { gap: 16px; }
  .section { padding: 56px 0; }
}
@media screen and (max-width: 520px) {
  .hot-cards { grid-template-columns: 1fr; }
  .brand-name span { display: none; }
  .brand-name strong { font-size: 1rem; }
  .hero-badge { font-size: 0.8125rem; }
  .news-item { flex-direction: column; }
  .news-cover { width: 100%; height: auto; aspect-ratio: 16 / 9; }
  .cta-banner { padding: 40px 20px; }
}

/* roulang page: article */
:root {
            --primary: #00A8FF;
            --primary-dark: #0091E0;
            --accent: #7B5CFF;
            --success: #00E5A0;
            --warning: #FFB800;
            --bg-main: #081426;
            --bg-secondary: #0B1E3F;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --bg-input: rgba(0, 0, 0, 0.30);
            --border: rgba(255, 255, 255, 0.10);
            --border-hover: rgba(0, 168, 255, 0.40);
            --text-primary: #E8F0FF;
            --text-secondary: #8CA3C8;
            --text-muted: #5A7399;
            --text-dark: #06101F;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.20);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.30);
            --shadow-glow: 0 4px 24px rgba(0, 168, 255, 0.30);
            --shadow-glow-strong: 0 6px 32px rgba(0, 168, 255, 0.50);
            --gradient-primary: linear-gradient(135deg, #00A8FF, #7B5CFF);
            --gradient-success: linear-gradient(135deg, #00E5A0, #00A8FF);
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --spacing-section: clamp(64px, 10vw, 120px);
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 1rem;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: clamp(16px, 4vw, 48px);
            padding-right: clamp(16px, 4vw, 48px);
        }

        body.dark-theme {
            background-color: var(--bg-main);
        }

        ::selection {
            background: rgba(0, 168, 255, 0.30);
            color: #fff;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: relative;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 20, 38, 0.80);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-size: 1.1rem;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand:hover {
            opacity: 0.85;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
        }

        .brand-name {
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .brand-name strong {
            font-size: 1.2rem;
            font-weight: 700;
            background: linear-gradient(135deg, #00A8FF, #7B5CFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .brand-name span {
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-primary);
        }

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

        .nav-menu a {
            position: relative;
            padding: 8px 16px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            font-weight: 500;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .nav-menu a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-menu a.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-wrap {
            position: relative;
        }

        .search-wrap .search-input {
            width: 200px;
            height: 40px;
            padding: 0 40px 0 16px;
            background: var(--bg-input);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            color: var(--text-primary);
            font-size: 0.875rem;
            transition: var(--transition);
        }

        .search-wrap .search-input::placeholder {
            color: var(--text-muted);
        }

        .search-wrap .search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.15);
            width: 220px;
        }

        .search-wrap .search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.875rem;
            pointer-events: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-md);
            padding: 14px 32px;
            font-size: 0.9375rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            border: none;
            line-height: 1.4;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

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

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: var(--shadow-glow-strong);
            color: #fff;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(0, 168, 255, 0.08);
            color: var(--text-primary);
        }

        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 0.875rem;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 1rem;
        }

        .btn-block {
            width: 100%;
        }

        .btn-gradient {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(0, 168, 255, 0.35);
            padding: 12px 28px;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition);
        }

        .btn-gradient:hover {
            box-shadow: 0 6px 28px rgba(0, 168, 255, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .header-actions .btn-sm {
            height: 40px;
        }

        .header-actions .link-login {
            color: var(--text-secondary);
            font-size: 0.875rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-pill);
            transition: var(--transition);
        }

        .header-actions .link-login:hover {
            color: var(--primary);
            background: rgba(0, 168, 255, 0.08);
        }

        /* Mobile Menu */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 1002;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            height: calc(100vh - 72px);
            background: rgba(8, 20, 38, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            z-index: 1001;
            padding: 40px 32px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            font-size: 1.25rem;
            padding: 16px 20px;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: var(--transition);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .mobile-menu a:hover {
            background: rgba(0, 168, 255, 0.08);
            color: var(--primary);
            padding-left: 24px;
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(0, 168, 255, 0.06);
            border-left: 3px solid var(--primary);
        }

        .mobile-search {
            margin: 16px 0 24px;
            position: relative;
        }

        .mobile-search input {
            width: 100%;
            height: 48px;
            padding: 0 44px 0 16px;
            background: var(--bg-input);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            color: var(--text-primary);
        }

        .mobile-search i {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
        }

        /* ===== Article Page ===== */
        .article-hero-wrapper {
            background: var(--bg-secondary);
            padding: 48px 0 0;
            position: relative;
            overflow: hidden;
        }

        .article-hero-wrapper::before {
            content: "";
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 168, 255, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-header {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px 36px;
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .article-breadcrumbs {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-breadcrumbs a {
            color: var(--text-secondary);
        }

        .article-breadcrumbs a:hover {
            color: var(--primary);
        }

        .article-breadcrumbs .sep {
            color: var(--text-muted);
        }

        .article-breadcrumbs .current {
            color: var(--text-muted);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 200px;
        }

        .article-header h1 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px 16px;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

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

        .article-meta .meta-item i {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .meta-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(0, 168, 255, 0.12);
            border: 1px solid rgba(0, 168, 255, 0.25);
            color: var(--primary);
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            font-weight: 500;
        }

        .meta-date {
            font-variant-numeric: tabular-nums;
        }

        .article-body-wrapper {
            background: var(--bg-main);
            padding: 48px 0 32px;
            position: relative;
        }

        .article-body-inner {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(0, 168, 255, 0.10);
            border: 1px solid rgba(0, 168, 255, 0.25);
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            color: var(--primary);
            margin-bottom: 24px;
            font-weight: 500;
        }

        .article-featured-image {
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.10);
            overflow: hidden;
            margin-bottom: 32px;
            position: relative;
            background: var(--bg-secondary);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        .article-featured-image .image-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 32px 16px 10px;
            background: linear-gradient(to top, rgba(8, 20, 38, 0.85), transparent);
            font-size: 0.8rem;
            color: var(--text-secondary);
            text-align: center;
        }

        .article-content {
            font-size: 1.0625rem;
            line-height: 1.85;
            color: var(--text-primary);
        }

        .article-content p {
            margin-bottom: 1.5em;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2em 0 0.8em;
            color: var(--text-primary);
            line-height: 1.4;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            border-radius: 0 4px 4px 0;
            letter-spacing: 0.01em;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.8em 0 0.6em;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-content h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin: 1.5em 0 0.5em;
            color: var(--text-primary);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-thickness: 1px;
        }

        .article-content a:hover {
            color: var(--accent);
            text-decoration-thickness: 2px;
        }

        .article-content img {
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.10);
            margin: 1.5em 0;
            width: 100%;
            height: auto;
        }

        .article-content img + em {
            display: block;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-style: normal;
            margin-top: -1.2em;
            margin-bottom: 1.5em;
            line-height: 1.5;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(0, 168, 255, 0.08);
            padding: 16px 24px;
            margin: 1.8em 0;
            border-radius: 0 8px 8px 0;
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .article-content ul {
            margin: 1.5em 0;
            padding-left: 0;
        }

        .article-content ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 8px;
            line-height: 1.75;
        }

        .article-content ul li::before {
            content: "";
            position: absolute;
            left: 6px;
            top: 14px;
            width: 7px;
            height: 7px;
            background: var(--gradient-primary);
            border-radius: 50%;
        }

        .article-content ol {
            margin: 1.5em 0;
            padding-left: 24px;
            counter-reset: article-counter;
        }

        .article-content ol li {
            position: relative;
            padding-left: 8px;
            margin-bottom: 8px;
            counter-increment: article-counter;
        }

        .article-content ol li::before {
            content: counter(article-counter) ".";
            position: absolute;
            left: -18px;
            color: var(--primary);
            font-weight: 600;
        }

        .article-content table {
            width: 100%;
            margin: 1.5em 0;
            border-collapse: collapse;
            font-size: 0.9375rem;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }

        .article-content table th {
            background: rgba(0, 168, 255, 0.10);
            color: var(--primary);
            font-weight: 600;
        }

        .article-content table tr:nth-child(even) {
            background: rgba(255, 255, 255, 0.03);
        }

        .article-content code {
            font-family: "JetBrains Mono", "Fira Code", "Menlo", monospace;
            font-size: 0.875em;
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }

        .article-content pre {
            background: rgba(0, 0, 0, 0.40);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            overflow-x: auto;
            margin: 1.5em 0;
            line-height: 1.6;
        }

        .article-content pre code {
            background: none;
            border: none;
            padding: 0;
            font-size: 0.875rem;
            color: var(--text-primary);
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 2.5em auto;
            width: 60%;
        }

        .article-content strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .article-content em {
            color: var(--text-secondary);
        }

        .article-empty-state {
            text-align: center;
            padding: 80px 24px;
            max-width: 560px;
            margin: 0 auto;
        }

        .article-empty-state .empty-icon {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .article-empty-state h2 {
            font-size: 1.5rem;
            color: var(--text-primary);
            margin-bottom: 12px;
            border: none;
            padding: 0;
        }

        .article-empty-state p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .article-tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .article-tag:hover {
            border-color: rgba(0, 168, 255, 0.40);
            color: var(--primary);
            background: rgba(0, 168, 255, 0.08);
        }

        .article-share-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .article-share-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-share-actions {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-secondary);
            font-size: 0.875rem;
            transition: var(--transition);
            cursor: pointer;
        }

        .icon-btn:hover {
            background: rgba(0, 168, 255, 0.15);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .article-pagination {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 32px;
            padding: 24px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .pagination-item {
            flex: 1;
            max-width: 260px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .pagination-item .dir {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 4px;
        }

        .pagination-item a,
        .pagination-item span {
            font-size: 0.9375rem;
            color: var(--text-secondary);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .pagination-item a:hover {
            color: var(--primary);
        }

        .pagination-item.next {
            text-align: right;
            margin-left: auto;
        }

        .pagination-item.back {
            margin-right: auto;
        }

        /* ===== Related Section ===== */
        .related-section {
            background: var(--bg-secondary);
            padding: clamp(56px, 8vw, 96px) 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-header-content {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: fit-content;
            padding: 4px 14px;
            background: rgba(0, 168, 255, 0.10);
            border: 1px solid rgba(0, 168, 255, 0.25);
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            color: var(--primary);
            font-weight: 500;
        }

        .section-header h2 {
            font-size: clamp(1.5rem, 2vw + 0.75rem, 2.25rem);
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .related-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }

        .related-card .card-media {
            aspect-ratio: 4/3;
            overflow: hidden;
            position: relative;
            background: var(--bg-secondary);
        }

        .related-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .related-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .related-card .card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .related-card .card-excerpt {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .related-card .card-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .related-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.875rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #06101F;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
            font-size: 1.15rem;
        }

        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.875rem;
            transition: var(--transition);
            position: relative;
            padding-left: 0;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 12px;
        }

        .footer-col ul li a:hover::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 4px;
            background: var(--primary);
            border-radius: 50%;
        }

        .footer-contact li {
            color: var(--text-secondary);
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-contact li i {
            color: var(--primary);
            width: 16px;
            font-size: 0.9375rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8125rem;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(135deg, rgba(0, 168, 255, 0.08), rgba(123, 92, 255, 0.08));
            border: 1px solid rgba(0, 168, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: clamp(40px, 6vw, 64px);
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 120px;
            background: radial-gradient(ellipse, rgba(0, 168, 255, 0.25), transparent 70%);
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: clamp(1.5rem, 2vw + 0.75rem, 2rem);
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }

        /* ===== Story / Navigation Breadcrumb ===== */
        .breadcrumb-list {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

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

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

            .search-wrap .search-input {
                width: 160px;
            }
        }

        @media screen and (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .header-inner {
                height: 64px;
            }

            .search-wrap {
                display: none;
            }

            .header-actions .btn-sm {
                display: none;
            }

            .header-actions .link-login {
                display: none;
            }

            .mobile-search {
                display: block;
            }

            .related-cards-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }

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

            .footer-brand .footer-desc {
                max-width: 100%;
            }

            .article-header {
                padding: 0 16px 28px;
                text-align: left;
            }

            .article-breadcrumbs {
                justify-content: flex-start;
            }

            .article-meta {
                justify-content: flex-start;
            }

            .article-header h1 {
                text-align: left;
            }

            .article-body-inner {
                padding: 0 16px;
            }

            .article-content {
                font-size: 1rem;
            }

            .article-pagination {
                flex-direction: column;
                gap: 8px;
            }

            .pagination-item {
                max-width: 100%;
            }

            .pagination-item.next {
                text-align: left;
            }

            .cta-banner {
                padding: 32px 24px;
            }
        }

        @media screen and (max-width: 520px) {
            .related-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .section-header {
                align-items: flex-start;
                margin-bottom: 24px;
            }

            .article-meta {
                font-size: 0.8125rem;
                gap: 10px;
            }
        }

        @media screen and (max-width: 480px) {
            .brand-name strong {
                font-size: 1.1rem;
            }

            .brand-name span {
                font-size: 1rem;
            }
        }

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

        .skip-link {
            position: absolute;
            top: -100%;
            left: 16px;
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            z-index: 9999;
            font-size: 0.875rem;
            font-weight: 600;
            transition: top 0.3s ease;
        }

        .skip-link:focus {
            top: 8px;
        }

/* roulang page: category1 */
:root {
  --bg: #081426;
  --bg-2: #0B1E3F;
  --card-bg: rgba(255, 255, 255, 0.06);
  --card-hover: rgba(255, 255, 255, 0.10);
  --border: rgba(255, 255, 255, 0.10);
  --border-hover: rgba(0, 168, 255, 0.40);
  --primary: #00A8FF;
  --gradient: linear-gradient(135deg, #00A8FF, #7B5CFF);
  --success: #00E5A0;
  --warning: #FFB800;
  --text: #E8F0FF;
  --text-2: #8CA3C8;
  --text-3: #5A7399;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.20);
  --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.30);
  --transition: 0.25s ease;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #33C0FF;
}

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

ul {
  list-style: none;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input:focus,
button:focus,
a:focus {
  outline: 2px solid rgba(0, 168, 255, 0.5);
  outline-offset: 2px;
}

.container,
.grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 48px);
  padding-right: clamp(16px, 4vw, 48px);
}

.grid-container {
  width: 100%;
}

.grid-x > .cell {
  padding-left: 12px;
  padding-right: 12px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 24px rgba(0, 168, 255, 0.30);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(0, 168, 255, 0.50);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(0, 168, 255, 0.08);
  color: var(--primary);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.88rem;
  border-radius: 10px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: rgba(8, 20, 38, 0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 999;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

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

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.2;
  white-space: nowrap;
}

.brand-name strong {
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-name span {
  color: rgba(232, 240, 255, 0.85);
  font-weight: 500;
}

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

.nav-menu a {
  position: relative;
  color: var(--text-2);
  font-size: 0.95rem;
  padding: 10px 16px;
  border-radius: 10px;
  transition: all 0.2s ease;
  font-weight: 500;
}

.nav-menu a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-menu a.active {
  color: #fff;
  font-weight: 600;
}

.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.30);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 0 14px;
  height: 42px;
  width: 200px;
  transition: all 0.25s ease;
}

.search-box i {
  color: var(--text-3);
  font-size: 0.85rem;
}

.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 0.88rem;
  width: 100%;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.15);
}

.search-box input::placeholder {
  color: var(--text-3);
}

.login-link {
  color: var(--text-2);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}

.login-link:hover {
  color: var(--primary);
}

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

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

/* ===== Section Common ===== */
.section {
  padding: clamp(64px, 10vw, 120px) 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto clamp(40px, 6vw, 64px);
}

.section-tag {
  display: inline-block;
  background: rgba(0, 168, 255, 0.12);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  border: 1px solid rgba(0, 168, 255, 0.20);
}

.section-head h2 {
  font-size: clamp(1.5rem, 2vw + 0.75rem, 2.25rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.section-head p {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.75;
}

/* ===== Category Hero ===== */
.cat-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  background-image: linear-gradient(90deg, rgba(8, 20, 38, 0.92) 0%, rgba(8, 20, 38, 0.65) 60%, rgba(8, 20, 38, 0.30) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.cat-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(0, 168, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.cat-hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 184, 0, 0.15);
  color: var(--warning);
  border: 1px solid rgba(255, 184, 0, 0.25);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.cat-hero h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.cat-hero .hero-desc {
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 42ch;
  line-height: 1.75;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-item strong {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.stat-item span {
  font-size: 0.8125rem;
  color: var(--text-3);
}

.cat-hero-visual {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 20px;
  padding: 40px 20px;
}

.cat-hero-visual img {
  width: 220px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.40);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.cat-hero-visual img:first-child {
  margin-top: 30px;
  transform: rotate(-4deg);
}

.cat-hero-visual img:last-child {
  transform: rotate(4deg);
}

.cat-hero-visual img:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.50);
}

/* ===== Feature ===== */
.cat-feature {
  background: var(--bg-2);
}

.feature-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: center;
}

.feature-media {
  position: relative;
}

.feature-media > img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.feature-media-float {
  position: absolute;
  right: -20px;
  bottom: -30px;
  width: 55%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 3px solid var(--bg-2);
  box-shadow: var(--shadow-hover);
}

.feature-media-float img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.feature-content h3 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.feature-content > p {
  color: var(--text-2);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 24px;
}

.feature-list {
  margin-bottom: 32px;
  display: grid;
  gap: 14px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text);
  font-size: 0.98rem;
}

.feature-list i {
  color: var(--success);
  font-size: 1.1rem;
  margin-top: 2px;
}

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

.game-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  transition: all 0.25s ease;
  display: block;
  color: var(--text);
}

.game-card:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  color: var(--text);
}

.card-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 20, 38, 0.65), transparent 50%);
  transition: opacity 0.3s ease;
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: rgba(255, 184, 0, 0.20);
  color: var(--warning);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 184, 0, 0.30);
  backdrop-filter: blur(6px);
  letter-spacing: 0.04em;
}

.play-btn {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.30);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.85rem;
  transition: all 0.3s ease;
}

.game-card:hover .play-btn {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(0, 168, 255, 0.50);
}

.card-body {
  padding: 20px;
}

.card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-body p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card-tags span {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-2);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
}

/* ===== Metrics ===== */
.cat-metrics {
  background: var(--bg-2);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.metric-card:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.metric-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 16px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 168, 255, 0.30);
}

.metric-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.metric-card p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step; 
}

.step-item {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 24px 28px;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
}

.step-item:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.step-num {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  margin-bottom: 12px;
  line-height: 1;
}

.step-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-item p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ===== Scenes ===== */
.cat-scenes {
  background: var(--bg-2);
}

.scenes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: left;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
}

.scene-card:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.scene-card i {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 18px;
  display: block;
}

.scene-card h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.scene-card p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ===== Reviews ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  border-left: 4px solid var(--success);
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
}

.review-card:hover {
  background: var(--card-hover);
  border-left-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.stars {
  color: var(--success);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.stars i.dim {
  color: rgba(255, 255, 255, 0.15);
}

.review-card > p {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 72px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
}

.review-user .name {
  color: var(--text-2);
  font-size: 0.875rem;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.faq-item.active {
  background: rgba(0, 168, 255, 0.06);
  border-color: rgba(0, 168, 255, 0.25);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  user-select: none;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.04);
}

.faq-question i {
  color: var(--text-3);
  transition: transform 0.3s ease;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--text-2);
  font-size: 0.95rem;
  line-height: 1.75;
}

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

.cta-box {
  position: relative;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 168, 255, 0.12), rgba(123, 92, 255, 0.08));
  border: 1px solid rgba(0, 168, 255, 0.40);
  border-radius: 24px;
  padding: clamp(48px, 8vw, 80px) clamp(24px, 5vw, 64px);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0, 168, 255, 0.08);
}

.cta-box::before {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(0, 168, 255, 0.25), transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.cta-box p {
  color: var(--text-2);
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  position: relative;
  z-index: 2;
}

/* ===== Footer ===== */
.site-footer {
  background: #06101F;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 64px;
  margin-top: clamp(64px, 10vw, 120px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-desc {
  color: var(--text-3);
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 30ch;
  margin-top: 16px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col a {
  color: var(--text-2);
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 6px;
  border-left: 2px solid var(--primary);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
  font-size: 0.9rem;
}

.footer-contact i {
  color: var(--text-3);
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-3);
  font-size: 0.8125rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cat-hero-content {
  animation: fadeInUp 0.6s ease forwards;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .cards-grid,
  .metrics-grid,
  .steps-grid,
  .scenes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .feature-media {
    max-width: 500px;
    margin: 0 auto;
  }

  .search-box {
    display: none;
  }

  .hero-stats {
    gap: 8px;
  }
}

@media screen and (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(8, 20, 38, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 24px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 998;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    padding: 14px 12px;
    font-size: 1.05rem;
    border-radius: 12px;
  }

  .nav-menu a.active::after {
    left: 12px;
    right: auto;
    width: 32px;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

  .header-actions .login-link {
    display: none;
  }

  .header-actions .btn-sm {
    padding: 8px 16px;
    font-size: 0.82rem;
  }

  .cat-hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + 48px);
    padding-bottom: 48px;
  }

  .cat-hero-visual {
    display: none;
  }

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

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

@media screen and (max-width: 520px) {
  .cards-grid,
  .metrics-grid,
  .steps-grid,
  .scenes-grid {
    grid-template-columns: 1fr;
  }

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

  .brand-name {
    font-size: 1rem;
  }

  .brand-icon {
    width: 32px;
    height: 32px;
  }

  .header-actions .btn-sm {
    display: none;
  }

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

  .cat-hero h1 {
    font-size: 1.8rem;
  }

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

  .stat-item {
    padding: 10px 14px;
  }

  .stat-item strong {
    font-size: 0.9rem;
  }

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

/* roulang page: category2 */
:root{
  --bg:#081426;
  --bg2:#0B1E3F;
  --card:rgba(255,255,255,0.06);
  --card-hover:rgba(255,255,255,0.10);
  --border:rgba(255,255,255,0.10);
  --border-hover:rgba(0,168,255,0.40);
  --brand:#00A8FF;
  --brand2:#7B5CFF;
  --grad:linear-gradient(135deg,#00A8FF,#7B5CFF);
  --success:#00E5A0;
  --warn:#FFB800;
  --text:#E8F0FF;
  --text2:#8CA3C8;
  --text3:#5A7399;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 4px 16px rgba(0,0,0,0.20);
  --shadow-lg:0 12px 32px rgba(0,0,0,0.30);
  --spacing:clamp(64px,10vw,120px);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--brand);}
ul,ol{list-style:none;}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding-left:clamp(16px,4vw,48px);padding-right:clamp(16px,4vw,48px);}
.section{padding:var(--spacing) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:0.8125rem;font-weight:600;letter-spacing:0.08em;
  color:var(--brand);background:rgba(0,168,255,0.10);
  border:1px solid rgba(0,168,255,0.20);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.5rem,2vw + 0.75rem,2.25rem);
  font-weight:600;line-height:1.3;color:var(--text);letter-spacing:0.01em;
}
.section-head p{color:var(--text2);margin-top:12px;font-size:1rem;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:1rem;line-height:1;
  padding:14px 32px;border-radius:12px;
  transition:all .25s ease;white-space:nowrap;border:1px solid transparent;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 4px 24px rgba(0,168,255,0.30);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 6px 32px rgba(0,168,255,0.50);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(0.95);}
.btn-outline{
  background:rgba(255,255,255,0.02);color:var(--text);
  border-color:rgba(255,255,255,0.25);
}
.btn-outline:hover{color:var(--brand);border-color:var(--brand);background:rgba(0,168,255,0.08);}
.btn-sm{padding:10px 20px;font-size:0.9rem;border-radius:10px;}
.btn-lg{padding:16px 40px;font-size:1.0625rem;}
.btn-block{width:100%;}
.tag{
  display:inline-block;font-size:0.8125rem;font-weight:500;color:var(--text2);
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.10);
  padding:4px 12px;border-radius:999px;line-height:1.5;
}
/* ========== Header ========== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;background:rgba(8,20,38,0.80);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.header-inner{display:flex;align-items:center;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{width:40px;height:40px;display:block;filter:drop-shadow(0 4px 12px rgba(0,168,255,0.30));}
.brand-name{font-size:1.1rem;line-height:1;display:flex;align-items:baseline;gap:2px;}
.brand-name strong{color:var(--brand);font-weight:700;letter-spacing:0.02em;}
.brand-name span{color:#E8F0FF;font-weight:500;}
.nav-menu{flex:1;display:flex;justify-content:center;gap:28px;}
.nav-menu a{
  color:var(--text2);font-size:0.95rem;font-weight:500;padding:8px 4px;position:relative;line-height:1.4;
}
.nav-menu a:hover{color:#fff;}
.nav-menu a.active{color:#fff;}
.nav-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;
}
.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;background:rgba(0,0,0,0.30);
  border:1px solid rgba(255,255,255,0.12);border-radius:20px;
  padding:6px 14px;width:180px;transition:border .2s,box-shadow .2s;height:38px;
}
.search-box:focus-within{
  border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,168,255,0.15);
}
.search-box svg{width:15px;height:15px;stroke:var(--text2);margin-right:8px;flex-shrink:0;fill:none;stroke-width:2;stroke-linecap:round;}
.search-box input{
  background:transparent;border:none;outline:none;color:var(--text);
  font-size:0.875rem;width:100%;height:100%;
}
.search-box input::placeholder{color:var(--text3);}
.header-cta{flex-shrink:0;}
.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.04);align-items:center;z-index:210;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all .25s;}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* ========== Hero ========== */
.cat-hero{
  min-height:72vh;display:flex;align-items:center;position:relative;
  background-size:cover;background-position:center;padding:140px 0 80px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,20,38,0.95) 0%,rgba(8,20,38,0.72) 45%,rgba(8,20,38,0.35) 100%),
  radial-gradient(ellipse at 80% 20%,rgba(0,168,255,0.18),transparent 50%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,0.035) 1px,transparent 1px);
  background-size:24px 24px;opacity:0.5;
}
.hero-inner{position:relative;z-index:2;width:100%;}
.hero-content .hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:999px;padding:7px 16px;font-size:0.8125rem;color:var(--text2);margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success);}
.cat-hero h1{
  font-size:clamp(1.75rem,3vw,2.5rem);font-weight:700;color:var(--text);
  line-height:1.2;letter-spacing:0.01em;margin-bottom:16px;
}
.cat-hero .hero-sub{font-size:1.0625rem;color:var(--text2);max-width:48ch;margin-bottom:32px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:36px;}
.hero-meta{display:flex;gap:24px;flex-wrap:wrap;color:var(--text3);font-size:0.8125rem;}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta svg{width:15px;height:15px;fill:none;stroke:var(--text2);stroke-width:2;stroke-linecap:round;}
.hero-cards{position:relative;height:420px;}
.hero-card{
  position:absolute;width:172px;aspect-ratio:3/4;border-radius:16px;overflow:hidden;
  border:1px solid rgba(255,255,255,0.15);box-shadow:var(--shadow-lg);
  transition:transform .35s ease,box-shadow .35s ease;
}
.hero-card img{width:100%;height:100%;}
.hero-card:hover{box-shadow:0 18px 42px rgba(0,168,255,0.25);}
.hero-card.card-0{top:0;left:30px;transform:rotate(-7deg);z-index:1;}
.hero-card.card-1{top:70px;left:190px;transform:rotate(5deg);z-index:2;}
.hero-card.card-2{top:150px;left:100px;transform:rotate(-3deg);z-index:0;}
.hero-cards:hover .hero-card{transform:rotate(0deg) translateY(-4px);}
/* ========== Stats ========== */
.cat-stats{padding:var(--spacing) 0 0;}
.stat-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 24px;height:100%;transition:all .25s ease;
}
.stat-card:hover{background:var(--card-hover);border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.stat-icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(0,168,255,0.20),rgba(123,92,255,0.20));
  border:1px solid rgba(0,168,255,0.25);
  display:flex;align-items:center;justify-content:center;
}
.stat-icon svg{width:24px;height:24px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.stat-card h3{font-size:1.125rem;font-weight:600;margin-bottom:8px;color:var(--text);}
.stat-card p{font-size:0.875rem;color:var(--text2);margin-bottom:0;}
/* ========== Detail ========== */
.cat-detail{padding:var(--spacing) 0;}
.detail-narration .section-kicker{margin-bottom:14px;}
.detail-narration h2{font-size:clamp(1.5rem,2vw + 0.75rem,2.25rem);font-weight:600;line-height:1.3;margin-bottom:20px;}
.detail-narration p{color:var(--text2);font-size:1.0625rem;margin-bottom:18px;}
.detail-narration h3{font-size:1.25rem;font-weight:600;color:var(--text);margin:30px 0 16px;}
.detail-narration blockquote{
  margin:28px 0 0;padding:20px 24px;border-left:4px solid var(--brand);
  background:rgba(0,168,255,0.06);border-radius:0 12px 12px 0;color:var(--text);font-size:1rem;
}
.detail-list li{
  position:relative;padding-left:28px;margin-bottom:12px;color:var(--text2);font-size:1rem;
}
.detail-list li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--grad);opacity:0.85;
}
.detail-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:6px;border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(45deg);
}
.detail-rail{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px;}
.rail-card{
  background:linear-gradient(145deg,rgba(255,255,255,0.08),rgba(255,255,255,0.03));
  border:1px solid rgba(255,255,255,0.12);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);
}
.rail-card h4{font-size:1.125rem;font-weight:600;margin-bottom:18px;color:var(--text);}
.rail-card ol{display:flex;flex-direction:column;gap:16px;}
.rail-card li{display:flex;gap:14px;align-items:flex-start;}
.rail-num{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  background:var(--grad);color:#fff;font-weight:700;font-size:0.85rem;
  display:flex;align-items:center;justify-content:center;letter-spacing:0.02em;
  box-shadow:0 4px 12px rgba(0,168,255,0.25);
}
.rail-card li div strong{display:block;font-size:0.95rem;color:var(--text);margin-bottom:4px;}
.rail-card li div p{font-size:0.8125rem;color:var(--text2);margin:0;}
.rail-card .btn{margin-top:20px;}
.rail-tip{
  background:rgba(255,255,255,0.04);border:1px dashed rgba(255,255,255,0.15);
  border-radius:var(--radius-sm);padding:18px 20px;
}
.rail-tip p{font-size:0.875rem;color:var(--text2);margin-bottom:8px;}
.rail-tip a{font-size:0.875rem;color:var(--brand);font-weight:600;}
.rail-tip a:hover{color:#fff;}
/* ========== Covers ========== */
.cat-covers{padding:var(--spacing) 0;background:var(--bg2);}
.cover-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;height:100%;transition:all .25s ease;display:flex;flex-direction:column;
}
.cover-card:hover{background:var(--card-hover);border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.cover-img{aspect-ratio:16/10;overflow:hidden;position:relative;}
.cover-img img{width:100%;height:100%;transition:transform .4s ease;}
.cover-card:hover .cover-img img{transform:scale(1.05);}
.cover-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,20,38,0) 55%,rgba(8,20,38,0.60) 100%);
}
.cover-body{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;}
.cover-body .tag{align-self:flex-start;margin-bottom:12px;color:var(--warn);background:rgba(255,184,0,0.10);border-color:rgba(255,184,0,0.20);}
.cover-body h3{font-size:1.125rem;font-weight:600;color:var(--text);margin-bottom:8px;}
.cover-body p{font-size:0.875rem;color:var(--text2);margin:0;line-height:1.65;}
/* ========== Scenes ========== */
.cat-scenes{padding:var(--spacing) 0;}
.scene-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 24px;height:100%;transition:all .25s ease;position:relative;overflow:hidden;
}
.scene-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity .25s;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--border-hover);box-shadow:var(--shadow-lg);}
.scene-card:hover::before{opacity:1;}
.scene-card svg{width:30px;height:30px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-bottom:18px;}
.scene-card h3{font-size:1.0625rem;font-weight:600;color:var(--text);margin-bottom:10px;}
.scene-card p{font-size:0.875rem;color:var(--text2);margin:0;}
/* ========== Flow ========== */
.cat-flow{padding:var(--spacing) 0;background:var(--bg2);}
.flow-copy h2{font-size:clamp(1.5rem,2vw + 0.75rem,2.25rem);font-weight:600;line-height:1.3;margin-bottom:18px;}
.flow-copy p{color:var(--text2);font-size:1rem;margin-bottom:14px;max-width:50ch;}
.flow-copy .flow-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.flow-copy .flow-points li{display:flex;align-items:center;gap:10px;color:var(--text);font-size:0.95rem;}
.flow-copy .flow-points li svg{width:20px;height:20px;fill:none;stroke:var(--success);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}
.flow-steps{display:flex;flex-direction:column;gap:16px;}
.flow-item{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;transition:all .25s ease;
}
.flow-item:hover{background:var(--card-hover);border-color:var(--border-hover);transform:translateX(6px);}
.flow-num{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:var(--grad);color:#fff;font-weight:700;font-size:1rem;
  display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,168,255,0.25);
}
.flow-item h3{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:6px;}
.flow-item p{font-size:0.875rem;color:var(--text2);margin:0;}
/* ========== FAQ ========== */
.cat-faq{padding:var(--spacing) 0;}
.faq-wrap{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:background .3s,border-color .3s;
}
.faq-item.open{background:rgba(0,168,255,0.06);border-color:rgba(0,168,255,0.30);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:1rem;font-weight:600;color:var(--text);text-align:left;transition:background .2s;
}
.faq-q:hover{background:rgba(255,255,255,0.04);}
.faq-icon{
  width:24px;height:24px;border-radius:6px;flex-shrink:0;position:relative;
  background:rgba(255,255,255,0.08);transition:background .3s,transform .3s;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--text2);transition:transform .3s,background .3s;
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(0,168,255,0.20);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--brand);}
.faq-a{
  display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease;
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 24px 22px;color:var(--text2);font-size:0.9375rem;margin:0;line-height:1.75;}
/* ========== CTA ========== */
.cat-cta{padding-bottom:var(--spacing);}
.cta-box{
  position:relative;text-align:center;overflow:hidden;
  background:linear-gradient(135deg,rgba(0,168,255,0.16),rgba(123,92,255,0.12),rgba(8,20,38,0.10));
  border:1px solid rgba(0,168,255,0.40);border-radius:24px;
  box-shadow:0 0 50px rgba(0,168,255,0.12),inset 0 0 80px rgba(0,168,255,0.05);
  padding:clamp(48px,7vw,80px) clamp(24px,4vw,64px);
}
.cta-box::before{
  content:"";position:absolute;left:50%;bottom:-60%;transform:translateX(-50%);
  width:500px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,168,255,0.35),transparent 70%);
  pointer-events:none;
}
.cta-box h2{font-size:clamp(1.5rem,2vw + 0.75rem,2.25rem);font-weight:600;margin-bottom:14px;color:var(--text);position:relative;z-index:1;}
.cta-box p{color:var(--text2);font-size:1rem;margin-bottom:28px;position:relative;z-index:1;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1;}
/* ========== Footer ========== */
.site-footer{
  background:#06101F;border-top:1px solid rgba(255,255,255,0.08);
  padding:64px 0 0;color:var(--text2);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:0.875rem;color:var(--text3);max-width:36ch;line-height:1.7;margin:0;}
.footer-col h4{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{font-size:0.875rem;color:var(--text2);position:relative;padding-left:16px;transition:color .2s,padding-left .2s;}
.footer-col ul a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:12px;background:var(--brand);border-radius:2px;opacity:0;transition:opacity .2s;}
.footer-col ul a:hover{color:var(--brand);padding-left:20px;}
.footer-col ul a:hover::before{opacity:1;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:0.875rem;color:var(--text2);line-height:1.6;}
.footer-contact svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding:20px 0;text-align:center;font-size:0.8125rem;color:var(--text3);}
/* ========== Responsive ========== */
@media (max-width:1024px){
  .search-box{width:150px;}
  .nav-menu{gap:18px;}
  .hero-card{width:140px;}
  .hero-card.card-1{left:160px;}
  .hero-card.card-2{left:85px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .hamburger{display:flex;}
  .search-box{display:none;}
  .header-cta{display:none;}
  .nav-menu{
    position:fixed;inset:0;z-index:200;
    flex-direction:column;justify-content:center;align-items:center;gap:32px;
    background:rgba(8,20,38,0.98);backdrop-filter:blur(20px);
    opacity:0;pointer-events:none;transition:opacity .3s ease;
  }
  .nav-menu.open{opacity:1;pointer-events:auto;}
  .nav-menu a{font-size:1.25rem;font-weight:600;}
  .nav-menu a.active::after{bottom:-4px;}
  .cat-hero{min-height:auto;padding:120px 0 60px;}
  .hero-cards{height:340px;margin-top:40px;}
  .hero-card{width:130px;}
  .hero-card.card-0{left:10px;}
  .hero-card.card-1{left:150px;}
  .hero-card.card-2{left:70px;}
  .details-rail{position:static;}
  .detail-rail{position:static;margin-top:32px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .header-inner{gap:12px;}
  .brand-name{font-size:1rem;}
  .brand-icon{width:34px;height:34px;}
  .hero-actions .btn{flex:1;justify-content:center;}
  .hero-meta{gap:12px 20px;}
  .hero-cards{height:300px;}
  .hero-card{width:112px;}
  .hero-card.card-1{left:130px;}
  .hero-card.card-2{left:55px;}
  .stat-card{padding:22px 18px;}
  .cover-body{padding:16px;}
  .section-head{margin-bottom:32px;}
}

/* roulang page: category3 */
/* ===== Design Tokens ===== */
:root{
  --bg-primary:#081426;
  --bg-secondary:#0B1E3F;
  --card-glass:rgba(255,255,255,0.06);
  --card-glass-hover:rgba(255,255,255,0.10);
  --border-default:rgba(255,255,255,0.10);
  --border-hover:rgba(0,168,255,0.40);
  --brand:#00A8FF;
  --brand-gradient:linear-gradient(135deg,#00A8FF,#7B5CFF);
  --success:#00E5A0;
  --warning:#FFB800;
  --text-primary:#E8F0FF;
  --text-secondary:#8CA3C8;
  --text-weak:#5A7399;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 4px 16px rgba(0,0,0,0.20);
  --shadow-hover:0 12px 32px rgba(0,0,0,0.32);
  --container-max:1200px;
  --nav-height:72px;
  --space-section:clamp(64px,10vw,112px);
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-primary);
  color:var(--text-primary);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:1rem;outline:none;border:none}
.container{max-width:var(--container-max);margin:0 auto;padding:0 clamp(16px,4vw,48px)}
section{padding:var(--space-section) 0;position:relative}

/* ===== Top Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--nav-height);
  background:rgba(8,20,38,0.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  z-index:1000;
}
.header-inner{
  max-width:var(--container-max);
  height:100%;
  margin:0 auto;
  padding:0 clamp(16px,3vw,40px);
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:36px;height:36px;
  border-radius:10px;
  flex-shrink:0;
  filter:drop-shadow(0 2px 8px rgba(0,168,255,0.35));
}
.brand-name{
  font-size:1.1rem;
  font-weight:600;
  letter-spacing:0.01em;
  white-space:nowrap;
}
.brand-name strong{
  color:var(--brand);
  font-weight:700;
  background:linear-gradient(135deg,#00A8FF,#7B5CFF);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.brand-name span{
  color:var(--text-primary);
  font-weight:600;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
  justify-content:center;
}
.nav-menu a{
  position:relative;
  padding:8px 16px;
  font-size:0.95rem;
  color:var(--text-secondary);
  border-radius:8px;
  transition:all .25s ease;
  white-space:nowrap;
}
.nav-menu a:hover{
  color:var(--text-primary);
  background:rgba(255,255,255,0.05);
}
.nav-menu a.active{
  color:var(--brand);
  font-weight:600;
}
.nav-menu a.active::after{
  content:'';
  position:absolute;
  left:16px;right:16px;bottom:2px;
  height:2px;
  background:var(--brand-gradient);
  border-radius:2px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search input{
  width:180px;
  height:38px;
  padding:0 38px 0 14px;
  background:rgba(0,0,0,0.30);
  border:1px solid rgba(255,255,255,0.14);
  border-radius:20px;
  font-size:0.875rem;
  color:var(--text-primary);
  transition:border-color .25s, box-shadow .25s;
}
.nav-search input::placeholder{
  color:var(--text-weak);
}
.nav-search input:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(0,168,255,0.15);
}
.nav-search i{
  position:absolute;
  right:14px;
  color:var(--text-secondary);
  font-size:0.875rem;
  pointer-events:none;
}
.header-link-login{
  color:var(--text-secondary);
  font-size:0.9rem;
  padding:6px 10px;
  border-radius:8px;
  transition:all .25s;
}
.header-link-login:hover{
  color:var(--brand);
  background:rgba(0,168,255,0.08);
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--brand-gradient);
  color:#fff;
  padding:9px 20px;
  border-radius:var(--radius-btn);
  font-weight:600;
  font-size:0.9rem;
  box-shadow:0 4px 20px rgba(0,168,255,0.30);
  transition:all .25s ease;
  cursor:pointer;
  border:none;
  line-height:1.4;
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 6px 28px rgba(0,168,255,0.48);
}
.btn-primary:active{
  transform:translateY(0);
  filter:brightness(0.95);
}
.btn-outline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:transparent;
  color:var(--text-primary);
  border:1px solid rgba(255,255,255,0.25);
  padding:9px 20px;
  border-radius:var(--radius-btn);
  font-weight:600;
  font-size:0.9rem;
  transition:all .25s ease;
  cursor:pointer;
}
.btn-outline:hover{
  border-color:var(--brand);
  color:var(--brand);
  background:rgba(0,168,255,0.08);
}
.btn-outline:active{
  transform:scale(0.98);
}
.burger{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--border-default);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  transition:all .25s;
}
.burger span{
  display:block;
  width:18px;height:2px;
  background:var(--text-primary);
  border-radius:2px;
  transition:all .3s ease;
}
.burger:hover{
  border-color:var(--brand);
}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile Drawer */
.mobile-drawer{
  position:fixed;
  top:var(--nav-height);
  left:0;right:0;
  background:rgba(8,20,38,0.97);
  backdrop-filter:blur(20px);
  padding:20px 24px 32px;
  z-index:999;
  display:none;
  border-bottom:1px solid var(--border-default);
  box-shadow:0 24px 48px rgba(0,0,0,0.4);
}
.mobile-drawer.open{display:block;animation:drawerIn .3s ease}
@keyframes drawerIn{
  from{opacity:0;transform:translateY(-12px)}
  to{opacity:1;transform:translateY(0)}
}
.mobile-drawer a{
  display:block;
  padding:14px 12px;
  font-size:1.05rem;
  color:var(--text-secondary);
  border-bottom:1px solid rgba(255,255,255,0.06);
  border-radius:8px;
  transition:all .2s;
}
.mobile-drawer a:hover,.mobile-drawer a.active{
  color:var(--brand);
  background:rgba(0,168,255,0.06);
  padding-left:18px;
}
.mobile-drawer .drawer-actions{
  display:flex;
  gap:12px;
  margin-top:16px;
}

/* ===== Hero (Category) ===== */
.cat-hero{
  position:relative;
  min-height:70vh;
  display:flex;
  align-items:center;
  padding-top:calc(var(--nav-height) + 40px);
  padding-bottom:60px;
  background:
    linear-gradient(115deg, rgba(8,14,30,0.94) 0%, rgba(8,20,38,0.78) 48%, rgba(123,92,255,0.28) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::after{
  content:'';
  position:absolute;
  bottom:-80px;right:-60px;
  width:320px;height:320px;
  background:radial-gradient(circle, rgba(0,168,255,0.28), transparent 70%);
  filter:blur(30px);
  border-radius:50%;
  z-index:0;
}
.cat-hero .container{
  position:relative;
  z-index:1;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(0,168,255,0.12);
  border:1px solid rgba(0,168,255,0.2);
  color:var(--brand);
  font-size:0.8125rem;
  padding:6px 16px;
  border-radius:999px;
  font-weight:600;
  letter-spacing:0.04em;
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(1.75rem, 3vw, 2.5rem);
  font-weight:700;
  line-height:1.2;
  letter-spacing:0.02em;
  max-width:60%;
  margin-bottom:16px;
}
.cat-hero h1 .accent{
  background:linear-gradient(135deg,#00A8FF,#7B5CFF);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.cat-hero p{
  font-size:1.125rem;
  color:var(--text-secondary);
  max-width:520px;
  margin-bottom:32px;
  line-height:1.8;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.hero-stats{
  display:flex;
  gap:32px;
  margin-top:44px;
  flex-wrap:wrap;
}
.hero-stats .stat-item{
  padding:16px 20px;
  background:var(--card-glass);
  border:1px solid var(--border-default);
  border-radius:14px;
  backdrop-filter:blur(10px);
}
.hero-stats .stat-num{
  font-size:1.6rem;
  font-weight:700;
  color:var(--text-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-stats .stat-num em{
  font-style:normal;
  font-size:0.9rem;
  color:var(--success);
  margin-left:4px;
}
.hero-stats .stat-label{
  font-size:0.8125rem;
  color:var(--text-weak);
  margin-top:4px;
}

/* ===== Section Common ===== */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:40px;
}
.section-head .tag-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:linear-gradient(135deg, rgba(255,184,0,0.15), rgba(255,140,0,0.08));
  border:1px solid rgba(255,184,0,0.30);
  color:var(--warning);
  font-size:0.75rem;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  text-transform:uppercase;
  letter-spacing:0.06em;
}
.section-head h2{
  font-size:clamp(1.5rem, 2vw + 0.75rem, 2.15rem);
  font-weight:600;
  line-height:1.3;
  letter-spacing:0.01em;
}
.section-head .sub-line{
  color:var(--text-secondary);
  font-size:0.95rem;
  margin-top:6px;
  max-width:640px;
}

/* ===== Intro Split ===== */
.intro-split{
  background:var(--bg-primary);
}
.split-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px,5vw,64px);
  align-items:center;
}
.split-copy h2{
  font-size:clamp(1.5rem, 2vw + 0.75rem, 2.15rem);
  margin-bottom:20px;
  line-height:1.35;
}
.split-copy p{
  color:var(--text-secondary);
  font-size:1.0625rem;
  line-height:1.85;
  margin-bottom:18px;
}
.split-copy .check-list{
  margin-top:20px;
}
.split-copy .check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:10px 0;
  color:var(--text-primary);
  font-size:0.95rem;
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.split-copy .check-list li i{
  color:var(--success);
  margin-top:4px;
  font-size:0.9rem;
}
.split-visual{
  position:relative;
}
.split-img-frame{
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--border-default);
  box-shadow:var(--shadow-card);
  position:relative;
}
.split-img-frame::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(150deg, rgba(0,168,255,0.08), transparent 50%);
  pointer-events:none;
}
.split-img-frame img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .5s ease;
}
.split-img-frame:hover img{
  transform:scale(1.03);
}
.floating-chip{
  position:absolute;
  top:-18px;right:-10px;
  background:rgba(11,30,63,0.9);
  border:1px solid rgba(0,168,255,0.35);
  backdrop-filter:blur(10px);
  padding:12px 18px;
  border-radius:14px;
  font-size:0.85rem;
  color:var(--text-primary);
  display:flex;
  align-items:center;
  gap:8px;
  box-shadow:0 8px 24px rgba(0,0,0,0.30);
  animation:floatY 3s ease-in-out infinite;
}
.floating-chip i{
  color:var(--brand);
}
@keyframes floatY{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}

/* ===== Masonry / Waterfall ===== */
.waterfall-section{
  background:var(--bg-secondary);
}
.waterfall{
  column-count:3;
  column-gap:24px;
}
.waterfall-item{
  break-inside:avoid;
  margin-bottom:24px;
  background:var(--card-glass);
  border:1px solid var(--border-default);
  border-radius:18px;
  overflow:hidden;
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
  transition:all .3s ease;
}
.waterfall-item:hover{
  transform:translateY(-5px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  background:var(--card-glass-hover);
}
.waterfall-item .wf-media{
  position:relative;
  overflow:hidden;
}
.waterfall-item .wf-media img{
  width:100%;
  transition:transform .5s ease;
}
.waterfall-item:hover .wf-media img{
  transform:scale(1.05);
}
.wf-card-tag{
  position:absolute;
  top:12px;left:12px;
  background:linear-gradient(135deg,#FFB800,#FF9500);
  color:#101010;
  font-size:0.75rem;
  font-weight:700;
  padding:4px 12px;
  border-radius:999px;
  letter-spacing:0.05em;
  box-shadow:0 4px 12px rgba(255,184,0,0.3);
}
.wf-card-tag.purple{
  background:linear-gradient(135deg,#7B5CFF,#5A3DFF);
  color:#fff;
  box-shadow:0 4px 12px rgba(123,92,255,0.35);
}
.wf-card-tag.green{
  background:linear-gradient(135deg,#00E5A0,#00B87A);
  color:#003D2A;
  box-shadow:0 4px 12px rgba(0,229,160,0.3);
}
.wf-body{
  padding:16px 18px 20px;
}
.wf-body h3{
  font-size:1.05rem;
  font-weight:600;
  line-height:1.5;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.wf-body p{
  font-size:0.875rem;
  color:var(--text-secondary);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
  line-height:1.7;
}
.wf-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,0.07);
}
.wf-meta .meta-hot{
  font-size:0.8125rem;
  color:var(--warning);
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:center;
  gap:4px;
}
.wf-meta .meta-hot i{
  font-size:0.75rem;
}
.wf-meta .meta-read{
  font-size:0.8125rem;
  color:var(--text-weak);
  transition:color .2s;
}
.wf-body a:hover .meta-read{
  color:var(--brand);
}

/* ===== Scenarios ===== */
.scenario-section{
  background:var(--bg-primary);
}
.scenario-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scenario-card{
  background:var(--card-glass);
  border:1px solid var(--border-default);
  border-radius:var(--radius-card);
  padding:32px 26px;
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card);
  transition:all .3s ease;
  position:relative;
  overflow:hidden;
}
.scenario-card::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:3px;height:60px;
  background:var(--brand-gradient);
  border-radius:0 0 3px 0;
  transition:height .3s ease;
}
.scenario-card:hover::before{
  height:100%;
}
.scenario-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  background:var(--card-glass-hover);
}
.scenario-icon{
  width:52px;height:52px;
  border-radius:14px;
  background:rgba(0,168,255,0.12);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
  font-size:1.3rem;
  color:var(--brand);
  border:1px solid rgba(0,168,255,0.20);
}
.scenario-card h3{
  font-size:1.15rem;
  font-weight:600;
  margin-bottom:12px;
}
.scenario-card p{
  color:var(--text-secondary);
  font-size:0.95rem;
  line-height:1.75;
}
.scenario-card .scenario-tip{
  margin-top:16px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:0.8125rem;
  color:var(--success);
  background:rgba(0,229,160,0.10);
  padding:6px 12px;
  border-radius:999px;
}

/* ===== Process ===== */
.process-section{
  background:var(--bg-secondary);
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:process;
}
.process-step{
  background:var(--card-glass);
  border:1px solid var(--border-default);
  border-radius:var(--radius-card);
  padding:30px 24px;
  position:relative;
  text-align:center;
  transition:all .3s;
  backdrop-filter:blur(8px);
}
.process-step:hover{
  border-color:var(--border-hover);
  transform:translateY(-4px);
  background:var(--card-glass-hover);
}
.process-step .step-num{
  width:48px;height:48px;
  margin:0 auto 18px;
  border-radius:50%;
  background:var(--brand-gradient);
  color:#fff;
  font-size:1.2rem;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(0,168,255,0.35);
  font-variant-numeric:tabular-nums;
}
.process-step h3{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:10px;
}
.process-step p{
  font-size:0.875rem;
  color:var(--text-secondary);
  line-height:1.7;
}

/* ===== Featured Topics ===== */
.topics-section{
  background:var(--bg-primary);
}
.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.topic-card{
  background:var(--card-glass);
  border:1px solid var(--border-default);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:all .3s ease;
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card);
}
.topic-card:hover{
  transform:translateY(-5px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
}
.topic-card .topic-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
}
.topic-card .topic-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.topic-card:hover .topic-media img{
  transform:scale(1.05);
}
.topic-card .topic-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, transparent 55%, rgba(8,20,38,0.85) 100%);
}
.topic-card .topic-tag{
  position:absolute;
  top:14px;left:14px;
  z-index:1;
  background:rgba(8,20,38,0.75);
  backdrop-filter:blur(8px);
  color:var(--brand);
  font-size:0.75rem;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(0,168,255,0.2);
}
.topic-card .topic-body{
  padding:20px 20px 24px;
}
.topic-card .topic-body h3{
  font-size:1.08rem;
  font-weight:600;
  margin-bottom:8px;
  line-height:1.5;
}
.topic-card .topic-body p{
  font-size:0.9rem;
  color:var(--text-secondary);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.topic-card .topic-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:0.875rem;
  font-weight:600;
  color:var(--brand);
}
.topic-card .topic-link i{
  transition:transform .2s;
}
.topic-card .topic-link:hover i{
  transform:translateX(4px);
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--bg-secondary);
}
.faq-box{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-default);
  border-radius:14px;
  margin-bottom:16px;
  overflow:hidden;
  transition:background .3s ease, border-color .3s ease;
}
.faq-item.open{
  background:rgba(0,168,255,0.06);
  border-color:rgba(0,168,255,0.30);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  cursor:pointer;
  font-size:1rem;
  font-weight:600;
  color:var(--text-primary);
  transition:color .2s;
  user-select:none;
}
.faq-question:hover{
  color:var(--brand);
}
.faq-icon{
  width:24px;height:24px;
  border-radius:50%;
  background:rgba(255,255,255,0.08);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:0.9rem;
  transition:transform .3s ease;
  flex-shrink:0;
  color:var(--text-secondary);
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--brand);
  color:#fff;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 22px 20px;
  color:var(--text-secondary);
  font-size:0.95rem;
  line-height:1.8;
}

/* ===== CTA ===== */
.cta-section{
  background:var(--bg-primary);
}
.cta-box{
  position:relative;
  border-radius:24px;
  border:1px solid rgba(0,168,255,0.35);
  background:
    radial-gradient(60% 80% at 80% 20%, rgba(123,92,255,0.18), transparent 60%),
    radial-gradient(40% 60% at 10% 90%, rgba(0,168,255,0.12), transparent 60%),
    rgba(255,255,255,0.04);
  backdrop-filter:blur(12px);
  padding:clamp(36px,6vw,72px) clamp(20px,4vw,48px);
  text-align:center;
  overflow:hidden;
  box-shadow:0 8px 40px rgba(0,0,0,0.3);
}
.cta-box::before{
  content:'';
  position:absolute;
  bottom:-60px;left:50%;
  transform:translateX(-50%);
  width:80%;height:120px;
  background:radial-gradient(ellipse at center, rgba(0,168,255,0.22), transparent 70%);
  filter:blur(20px);
  pointer-events:none;
}
.cta-box h2{
  font-size:clamp(1.5rem, 3vw, 2.4rem);
  font-weight:700;
  margin-bottom:16px;
  position:relative;
}
.cta-box p{
  color:var(--text-secondary);
  font-size:1.05rem;
  margin-bottom:32px;
  max-width:560px;
  margin-left:auto;
  margin-right:auto;
  position:relative;
}
.cta-form{
  max-width:460px;
  margin:0 auto 28px;
  display:flex;
  gap:10px;
  position:relative;
  z-index:1;
}
.cta-form input{
  flex:1;
  height:48px;
  padding:0 18px;
  border-radius:12px;
  background:rgba(0,0,0,0.35);
  border:1px solid rgba(255,255,255,0.15);
  color:var(--text-primary);
  font-size:0.95rem;
  transition:border-color .25s, box-shadow .25s;
}
.cta-form input:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(0,168,255,0.15);
}
.cta-form input::placeholder{
  color:var(--text-weak);
}
.cta-form button{
  height:48px;
  padding:0 26px;
  border-radius:12px;
  background:var(--brand-gradient);
  color:#fff;
  font-weight:600;
  font-size:0.95rem;
  cursor:pointer;
  border:none;
  box-shadow:0 4px 20px rgba(0,168,255,0.3);
  transition:all .25s;
  white-space:nowrap;
}
.cta-form button:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
}
.cta-note{
  font-size:0.8125rem;
  color:var(--text-weak);
  position:relative;
}

/* ===== Footer ===== */
.site-footer{
  background:#06101F;
  border-top:1px solid rgba(255,255,255,0.08);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{
  margin-bottom:16px;
}
.footer-brand .brand-icon{
  width:40px;height:40px;
  border-radius:10px;
}
.footer-desc{
  font-size:0.9rem;
  color:var(--text-secondary);
  line-height:1.75;
  max-width:320px;
}
.footer-col h4{
  font-size:0.95rem;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:16px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:0.875rem;
  color:var(--text-secondary);
  transition:all .25s;
  display:inline-flex;
  align-items:center;
}
.footer-col ul a:hover{
  color:var(--brand);
  padding-left:10px;
  border-left:2px solid var(--brand);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:0.875rem;
  color:var(--text-secondary);
  margin-bottom:10px;
}
.footer-contact li i{
  color:var(--brand);
  font-size:0.8125rem;
  width:16px;
  text-align:center;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding:20px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:0.8125rem;
  color:var(--text-weak);
}

/* ===== Responsive ===== */
@media (max-width: 1024px){
  .nav-menu{display:none}
  .header-link-login{display:none}
  .burger{display:flex}
  .nav-search input{width:150px}
  .waterfall{column-count:2}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 768px){
  .hero-stats{gap:16px}
  .split-grid{grid-template-columns:1fr}
  .split-visual{margin-top:32px}
  .cta-form{flex-direction:column}
  .cta-form button{width:100%}
}
@media (max-width: 640px){
  .nav-search{display:none}
  .brand-name{font-size:0.95rem}
  .hero-stats .stat-item{padding:14px 16px}
  .waterfall{column-count:1}
  .scenario-grid{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-btns .btn-primary,.hero-btns .btn-outline{width:100%;justify-content:center}
}