:root {
  --primary: #25d3cd;
  --primary-dark: #0b8986;
  --primary-soft: rgba(37, 211, 205, 0.14);
  --accent: #c7a96b;
  --bg: #071217;
  --surface: #102229;
  --surface-strong: #17333b;
  --text: #f4fbfb;
  --muted: #a6bdc1;
  --border: rgba(255,255,255,0.12);
  --shadow: rgba(0,0,0,0.28);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 10% 0%, rgba(37,211,205,0.16), transparent 28%), var(--bg);
  color: var(--text);
  line-height: 1.72;
  overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
header, main, section, article, footer, nav { display: block; }
.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--border); background: rgba(7,18,23,0.92); backdrop-filter: blur(18px); }
.mobile-header { height: 64px; padding: 0 14px; display: flex; align-items: center; justify-content: space-between; }
.desktop-header { display: none; }
.logo img { height: 42px; width: auto; object-fit: contain; }
.mobile-logo { position: absolute; left: 50%; transform: translateX(-50%); }
.menu-button { width: 44px; height: 44px; border: 1px solid var(--border); background: rgba(255,255,255,0.04); border-radius: 14px; display: inline-flex; flex-direction: column; justify-content: center; gap: 5px; padding: 0 11px; cursor: pointer; }
.menu-button span { height: 2px; width: 100%; border-radius: 2px; background: var(--text); }
.top-action, .top-action-button, .main-button { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 10px 16px; background: var(--primary); color: #031113; font-weight: 800; border: 0; box-shadow: 0 10px 24px rgba(37,211,205,0.22); }
.top-action:hover, .top-action-button:hover, .main-button:hover { filter: brightness(0.85); color: #031113; }
.mobile-drawer { position: fixed; left: 0; top: 0; bottom: 0; width: min(82vw, 320px); background: #091a20; border-right: 1px solid var(--border); transform: translateX(-105%); transition: transform .24s ease; padding: 18px; z-index: 80; display: flex; flex-direction: column; gap: 8px; box-shadow: 18px 0 48px var(--shadow); }
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer a { padding: 13px 14px; border-radius: 14px; color: var(--muted); font-weight: 700; }
.mobile-drawer a.active, .mobile-drawer a:hover { color: var(--text); background: var(--primary-soft); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; color: var(--text); font-weight: 900; }
.drawer-close { color: var(--text); background: transparent; border: 1px solid var(--border); border-radius: 12px; width: 36px; height: 36px; font-size: 24px; cursor: pointer; }
.drawer-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 70; }
.drawer-backdrop.open { display: block; }
main { min-height: 58vh; }
.container, .content-section, .page-hero, .movie-hero, .banner-section, .cta-section { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.movie-hero { padding: 36px 0 34px; display: grid; gap: 24px; }
.hero-panel { min-height: 520px; border-radius: 26px; background: linear-gradient(90deg, rgba(7,18,23,.96), rgba(7,18,23,.66), rgba(7,18,23,.22)), url('/banner.webp') center/cover no-repeat; overflow: hidden; border: 1px solid var(--border); box-shadow: 0 20px 60px var(--shadow); display: grid; align-items: end; }
.hero-content { padding: 30px; max-width: 720px; }
.eyebrow, .data-badge { display: inline-flex; align-items: center; gap: 8px; border: 1px solid rgba(37,211,205,.28); background: var(--primary-soft); color: #bafdf9; border-radius: 999px; padding: 6px 12px; font-weight: 800; font-size: 13px; }
h1, h2, h3 { line-height: 1.18; margin: 0 0 14px; }
h1 { font-size: clamp(34px, 7vw, 70px); letter-spacing: -0.05em; }
h2 { font-size: clamp(25px, 4vw, 42px); letter-spacing: -0.03em; }
h3 { font-size: 21px; }
p { color: var(--muted); margin: 0 0 14px; }
.hero-content p { color: #d7ecee; font-size: 18px; }
.main-button { margin-top: 12px; padding: 13px 22px; }
.banner-section { margin-top: 18px; }
.content-section { padding: 34px 0; }
.section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.section-head p { max-width: 780px; }
.responsive-grid, .category-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.category-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.info-card, .service-card, .movie-card, .faq-item, .alert-box, .data-chart-panel, .device-showcase, .security-section, .parental-guidance-section { border: 1px solid var(--border); background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.025)); border-radius: var(--radius); padding: 20px; box-shadow: 0 12px 32px rgba(0,0,0,0.16); }
.info-card h3, .service-card h3, .movie-card h3 { color: var(--text); }
.info-card a, .movie-card a, .service-card a { color: var(--primary); font-weight: 800; }
.movie-card img, .device-showcase img, .data-chart-panel img { border-radius: 16px; margin-bottom: 16px; border: 1px solid var(--border); }
.data-chart-panel { background: linear-gradient(135deg, rgba(37,211,205,.13), rgba(199,169,107,.08)); }
.data-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.data-row:last-child { border-bottom: 0; }
.data-value { color: var(--primary); font-size: 24px; font-weight: 900; }
.trend-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.trend-list li { display: flex; justify-content: space-between; gap: 10px; border: 1px solid var(--border); background: rgba(255,255,255,0.035); padding: 12px 14px; border-radius: 14px; }
.trend-list strong { color: var(--text); }
.timeline { position: relative; display: grid; gap: 14px; }
.timeline article { border-left: 3px solid var(--primary); padding-left: 16px; }
.alert-box { border-color: rgba(199,169,107,.36); background: rgba(199,169,107,.09); }
.alert-box strong { color: #ffe4a5; }
.page-hero { padding: 44px 0 22px; }
.page-hero .page-card { border: 1px solid var(--border); background: radial-gradient(circle at 80% 10%, rgba(37,211,205,.16), transparent 32%), var(--surface); border-radius: 26px; padding: 28px; }
.page-hero p { max-width: 860px; font-size: 17px; }
.split-grid { display: grid; gap: 18px; grid-template-columns: 1fr; align-items: start; }
.stat-strip { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0,1fr)); }
.stat-card { border: 1px solid var(--border); background: var(--surface); border-radius: 16px; padding: 16px; }
.stat-card b { display: block; color: var(--primary); font-size: 26px; }
.faq-list { display: grid; gap: 14px; }
.faq-item h2, .faq-item h3 { font-size: 20px; }
.cta-section { padding: 34px 0 56px; }
.cta-card { border: 1px solid rgba(37,211,205,.28); border-radius: 28px; padding: 26px; background: linear-gradient(135deg, rgba(37,211,205,.18), rgba(7,18,23,.92)); display: grid; gap: 18px; align-items: center; }
.site-footer { border-top: 1px solid var(--border); background: #061015; padding: 36px 0 0; }
.footer-grid { width: min(1160px, calc(100% - 32px)); margin: 0 auto; display: grid; gap: 22px; grid-template-columns: 1fr; }
.footer-logo img { height: 48px; margin-bottom: 14px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-links a { color: var(--muted); }
.footer-bottom { margin-top: 28px; border-top: 1px solid var(--border); padding: 18px 16px; display: flex; flex-direction: column; gap: 10px; align-items: center; justify-content: center; text-align: center; }
.footer-bottom a { color: var(--primary); font-weight: 800; }
@media (min-width: 720px) {
  .responsive-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .category-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .split-grid { grid-template-columns: 1.2fr .8fr; }
  .cta-card { grid-template-columns: 1fr auto; }
}
@media (min-width: 1024px) {
  .mobile-header, .mobile-drawer, .drawer-backdrop { display: none; }
  .desktop-header { width: min(1240px, calc(100% - 42px)); height: 78px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; }
  .desktop-logo img { height: 50px; }
  .desktop-nav { display: flex; align-items: center; justify-content: center; gap: 2px; }
  .desktop-nav a { padding: 10px 11px; border-radius: 999px; color: var(--muted); font-weight: 800; white-space: nowrap; font-size: 15px; }
  .desktop-nav a.active, .desktop-nav a:hover { color: var(--text); background: var(--primary-soft); }
  .desktop-tools { display: flex; align-items: center; gap: 12px; }
  .search-icon { width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; color: var(--muted); }
  .search-icon svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
  .movie-hero { padding-top: 48px; }
  .hero-content { padding: 48px; }
  .responsive-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .category-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .footer-grid { grid-template-columns: 1.15fr 1fr 1fr .8fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; width: min(1160px, calc(100% - 32px)); margin-left: auto; margin-right: auto; }
}
@media (max-width: 420px) {
  .category-grid { grid-template-columns: 1fr; }
  .top-action { padding: 9px 13px; font-size: 14px; }
  .hero-content { padding: 24px; }
}