:root {
  --bg: #fbfdff;
  --text: #20243a;
  --muted: #677086;
  --panel: rgba(255,255,255,.78);
  --line: rgba(109,120,154,.18);
  --pink: #ff5ebc;
  --blue: #43cfff;
  --violet: #9e60ff;
  --deep: #202740;
  --shadow: 0 24px 70px rgba(83, 92, 131, .16);
  --radius: 28px;
}
* { 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", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 8%, rgba(255,94,188,.22), transparent 28rem),
    radial-gradient(circle at 92% 6%, rgba(67,207,255,.24), transparent 30rem),
    radial-gradient(circle at 50% 70%, rgba(158,96,255,.10), transparent 32rem),
    var(--bg);
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(18px); background: rgba(255,255,255,.76); border-bottom: 1px solid rgba(210,220,240,.7); }
.nav-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 14px 0 10px; }
.nav-row { display: flex; align-items: center; gap: 24px; justify-content: space-between; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: .02em; font-size: 1.14rem; }
.logo img { width: 42px; height: 42px; border-radius: 15px; box-shadow: 0 10px 24px rgba(67,207,255,.22); }
.nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.nav a { padding: 9px 12px; border-radius: 999px; color: #303851; font-size: .94rem; transition: .25s ease; }
.nav a:hover, .nav a.active { color: #fff; background: linear-gradient(135deg, var(--pink), var(--blue)); box-shadow: 0 10px 24px rgba(255,94,188,.22); }
.search-ui { margin-top: 12px; position: relative; display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-ui input { width: 100%; border: 1px solid rgba(117,132,170,.18); background: rgba(255,255,255,.8); border-radius: 18px; padding: 14px 18px; font-size: 1rem; box-shadow: inset 0 1px 0 rgba(255,255,255,.8); outline: none; }
.search-ui button, .btn { border: 0; cursor: pointer; border-radius: 18px; padding: 13px 18px; color: #fff; font-weight: 800; background: linear-gradient(135deg, var(--pink), var(--blue)); box-shadow: 0 16px 36px rgba(67,207,255,.22); transition: transform .25s ease, box-shadow .25s ease; }
.search-ui button:hover, .btn:hover { transform: translateY(-2px); box-shadow: 0 18px 42px rgba(255,94,188,.28); }
.search-tip { position: absolute; left: 12px; bottom: -36px; display: none; padding: 7px 12px; border-radius: 999px; background: rgba(32,39,64,.9); color: #fff; font-size: .85rem; }
.search-tip.show { display: inline-flex; }
main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.hero { position: relative; padding: 72px 0 54px; min-height: 640px; display: grid; grid-template-columns: 1.02fr .98fr; gap: 36px; align-items: center; }
.hero::before { content: ""; position: absolute; inset: 38px -18px 0; border-radius: 46px; background: linear-gradient(135deg, rgba(255,255,255,.78), rgba(255,255,255,.46)); box-shadow: var(--shadow); z-index: -2; }
#particle-field { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: -1; }
.particle { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: linear-gradient(135deg, var(--pink), var(--blue)); opacity: .45; animation: floatParticle 9s ease-in-out infinite alternate; filter: blur(.2px); }
@keyframes floatParticle { to { transform: translate3d(24px, -34px, 0) scale(1.4); opacity: .78; } }
.eyebrow { display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px; border: 1px solid rgba(255,94,188,.24); color: #b12a7c; background: rgba(255,255,255,.72); border-radius: 999px; font-size: .9rem; font-weight: 800; }
h1 { margin: 22px 0 14px; font-size: clamp(2.25rem, 6vw, 5.4rem); line-height: 1.02; letter-spacing: -.05em; }
.gradient-text { background: linear-gradient(125deg, #20243a 10%, var(--pink), var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: clamp(1.04rem, 2vw, 1.28rem); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn.secondary { color: var(--deep); background: rgba(255,255,255,.82); border: 1px solid rgba(67,207,255,.35); box-shadow: none; }
.domain-pill { margin-top: 24px; display: inline-flex; flex-wrap: wrap; gap: 8px; border-radius: 18px; padding: 11px 14px; background: rgba(255,255,255,.74); border: 1px solid var(--line); color: var(--muted); }
.hero-visual { position: relative; }
.hero-card { border-radius: 38px; padding: 14px; background: linear-gradient(135deg, rgba(255,255,255,.75), rgba(255,255,255,.38)); border: 1px solid rgba(255,255,255,.86); box-shadow: 0 28px 80px rgba(67,207,255,.18); transform: rotate(1.4deg); }
.hero-card img { border-radius: 28px; aspect-ratio: 16 / 9; object-fit: cover; }
.floating-stats { position: absolute; left: -12px; bottom: -24px; display: grid; gap: 10px; padding: 16px; width: min(280px, 80%); border-radius: 24px; background: rgba(255,255,255,.88); box-shadow: 0 20px 60px rgba(32,39,64,.13); border: 1px solid rgba(255,255,255,.9); }
.stat-line { display: flex; justify-content: space-between; gap: 12px; font-size: .93rem; color: var(--muted); }
.stat-line strong { color: var(--deep); }
.section { padding: 54px 0; }
.section-head { display: flex; gap: 18px; justify-content: space-between; align-items: end; margin-bottom: 24px; }
.section h2 { margin: 0; font-size: clamp(1.8rem, 3.5vw, 3.2rem); line-height: 1.08; letter-spacing: -.035em; }
.section p.desc { color: var(--muted); max-width: 690px; margin: 10px 0 0; }
.grid { display: grid; gap: 20px; }
.grid.cards-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cards-4 { grid-template-columns: repeat(4, 1fr); }
.panel { background: var(--panel); border: 1px solid rgba(255,255,255,.86); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.video-card { position: relative; overflow: hidden; background: rgba(255,255,255,.78); border: 1px solid rgba(255,255,255,.9); border-radius: 28px; box-shadow: 0 18px 50px rgba(69,78,112,.12); transition: transform .28s ease, box-shadow .28s ease; }
.video-card:hover { transform: translateY(-7px); box-shadow: 0 24px 70px rgba(255,94,188,.18); }
.video-media { position: relative; overflow: hidden; border-radius: 28px 28px 0 0; background: #202740; }
.video-media img, .video-media video { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.video-media video { position: absolute; inset: 0; opacity: 0; }
.video-media::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 50%, rgba(255,255,255,.08), rgba(67,207,255,.22) 45%, rgba(255,94,188,.20)); opacity: 0; transition: opacity .28s ease; }
.play { position: absolute; inset: 0; display: grid; place-items: center; z-index: 2; opacity: 0; transform: scale(.92); transition: .28s ease; }
.play span { width: 72px; height: 72px; border-radius: 50%; background: rgba(255,255,255,.9); display: grid; place-items: center; color: var(--pink); box-shadow: 0 12px 34px rgba(32,39,64,.18); }
.video-card:hover .play, .video-card:hover .video-media::after { opacity: 1; transform: scale(1); }
.video-body { padding: 18px; }
.video-body h3 { margin: 0 0 8px; font-size: 1.12rem; line-height: 1.35; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.tag { color: #93447b; background: rgba(255,94,188,.1); border: 1px solid rgba(255,94,188,.14); border-radius: 999px; padding: 4px 9px; font-size: .82rem; font-weight: 700; }
.meta { display: flex; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: .88rem; }
.image-desc { color: var(--muted); font-size: .88rem; margin: 10px 0 0; }
.barrage { position: relative; min-height: 250px; overflow: hidden; border-radius: 30px; background: linear-gradient(135deg, rgba(255,94,188,.12), rgba(67,207,255,.14)); }
.barrage span { position: absolute; left: var(--x); top: var(--y); padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.78); box-shadow: 0 10px 28px rgba(83,92,131,.14); animation: drift 8s linear infinite; white-space: nowrap; }
@keyframes drift { from { transform: translateX(55%); } to { transform: translateX(-128%); } }
.feature-list { display: grid; gap: 14px; }
.feature-list li { list-style: none; padding: 16px; border-radius: 20px; background: rgba(255,255,255,.7); border: 1px solid var(--line); }
.expert-card { display: flex; align-items: center; gap: 14px; }
.avatar { width: 58px; height: 58px; border-radius: 19px; background: linear-gradient(135deg, var(--pink), var(--blue)); display: grid; place-items: center; color: white; font-weight: 900; }
.quote { min-height: 210px; display: flex; flex-direction: column; justify-content: space-between; }
.quote p { color: #3b425b; }
.partner-wall { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
.partner-wall span { text-align: center; padding: 18px 10px; border-radius: 20px; background: rgba(255,255,255,.72); border: 1px solid var(--line); font-weight: 800; color: #434b68; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 850; }
.faq p { color: var(--muted); margin-bottom: 0; }
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; align-items: stretch; }
.qr-row { display: flex; gap: 16px; flex-wrap: wrap; }
.qr { width: 142px; padding: 12px; border-radius: 22px; background: white; border: 1px solid var(--line); }
.site-footer { margin-top: 44px; padding: 40px 0; background: rgba(255,255,255,.78); border-top: 1px solid rgba(210,220,240,.8); }
.footer-inner { width: min(1180px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); }
.breadcrumb { padding: 22px 0 0; color: var(--muted); font-size: .92rem; }
.page-hero { padding: 54px 0 24px; }
.page-hero h1 { font-size: clamp(2.1rem, 5vw, 4.4rem); max-width: 880px; }
.article-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: start; }
.steps { counter-reset: step; }
.steps li { counter-increment: step; list-style: none; margin: 0 0 12px; padding: 15px 15px 15px 58px; border-radius: 18px; background: rgba(255,255,255,.74); position: relative; border: 1px solid var(--line); }
.steps li::before { content: counter(step); position: absolute; left: 15px; top: 15px; width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg, var(--pink), var(--blue)); color: #fff; display: grid; place-items: center; font-weight: 900; }
.cta-strip { padding: 28px; border-radius: 30px; background: linear-gradient(135deg, rgba(255,94,188,.13), rgba(67,207,255,.15)); display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
@media (max-width: 920px) {
  .hero, .article-layout, .contact-grid, .footer-inner { grid-template-columns: 1fr; }
  .grid.cards-3, .grid.cards-4 { grid-template-columns: repeat(2, 1fr); }
  .section-head { display: block; }
  .nav-row { align-items: flex-start; flex-direction: column; }
  .nav { justify-content: flex-start; }
}
@media (max-width: 620px) {
  .grid.cards-3, .grid.cards-4, .partner-wall { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 42px; }
  .hero::before { inset: 18px -10px 0; border-radius: 32px; }
  .search-ui { grid-template-columns: 1fr; }
  .floating-stats { position: static; margin-top: 12px; width: auto; }
  .site-header { position: relative; }
}