:root{
  --bg:#f8fbff;
  --paper:rgba(255,255,255,.82);
  --ink:#161827;
  --muted:#62677a;
  --pink:#ff4fd8;
  --blue:#4ac7ff;
  --violet:#8a5cff;
  --line:rgba(26,30,48,.10);
  --shadow:0 24px 80px rgba(74,199,255,.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(--ink);
  background:
    radial-gradient(circle at 10% 4%, rgba(255,79,216,.22), transparent 30%),
    radial-gradient(circle at 90% 0%, rgba(74,199,255,.22), transparent 32%),
    linear-gradient(180deg,#fff 0%,var(--bg) 42%,#fff 100%);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(138,92,255,.22) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.65),transparent 82%);
  z-index:-1;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 36px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:8px;background:#fff;padding:10px 14px;border-radius:12px;z-index:20}
.skip-link:focus{left:12px}
.site-header{
  position:sticky;top:0;z-index:10;
  backdrop-filter:blur(20px);
  background:rgba(255,255,255,.78);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.02em}
.logo-mark{
  width:42px;height:42px;border-radius:16px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--pink),var(--blue));
  box-shadow:0 12px 32px rgba(255,79,216,.28);
}
.logo small{display:block;color:var(--muted);font-weight:600;font-size:12px;margin-top:2px}
.nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.nav a{
  padding:10px 12px;border-radius:999px;color:#3c4156;font-weight:700;font-size:14px;
}
.nav a:hover,.nav a[aria-current="page"]{
  background:linear-gradient(135deg,rgba(255,79,216,.14),rgba(74,199,255,.14));
  color:#111426;
}
.search-shell{padding:14px 0 22px}
.fake-search{
  display:flex;align-items:center;gap:10px;
  width:min(780px,100%);margin:0 auto;
  background:var(--paper);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:0 18px 50px rgba(138,92,255,.10);
  padding:10px;
}
.fake-search input{
  flex:1;border:0;background:transparent;outline:0;font-size:15px;padding:12px;color:var(--ink);
}
.btn{
  border:0;border-radius:999px;padding:13px 18px;font-weight:900;cursor:pointer;
  background:linear-gradient(135deg,var(--pink),var(--blue));
  color:#fff;box-shadow:0 14px 34px rgba(74,199,255,.28);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn.secondary{background:#fff;color:#1a2036;border:1px solid var(--line);box-shadow:none}
.hero{position:relative;padding:64px 0 42px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:34px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;
  background:rgba(255,255,255,.78);border:1px solid var(--line);color:#444a5d;font-weight:800;font-size:13px;
}
h1{font-size:clamp(38px,6vw,76px);line-height:.98;margin:18px 0 18px;letter-spacing:-.06em}
h2{font-size:clamp(28px,3.6vw,48px);line-height:1.05;margin:0 0 14px;letter-spacing:-.04em}
h3{font-size:22px;margin:0 0 10px}
h4{margin:0 0 8px;font-size:18px}
p{line-height:1.78;color:var(--muted);margin:0 0 16px}
.gradient-text{
  background:linear-gradient(120deg,#14172a 0%,#863cff 36%,#ff4fd8 64%,#00a8ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
.metric{
  background:rgba(255,255,255,.70);border:1px solid var(--line);border-radius:22px;padding:16px;
}
.metric strong{font-size:26px;display:block}
.hero-visual{
  position:relative;border-radius:36px;padding:14px;
  background:linear-gradient(135deg,rgba(255,79,216,.30),rgba(74,199,255,.28));
  box-shadow:var(--shadow);
}
.hero-card{
  min-height:520px;border-radius:28px;overflow:hidden;position:relative;
  background:#fff;
  border:1px solid rgba(255,255,255,.76);
}
.hero-card img{width:100%;height:520px;object-fit:cover}
.hero-overlay{
  position:absolute;inset:auto 18px 18px 18px;padding:20px;border-radius:24px;
  background:rgba(255,255,255,.78);backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.70);
}
.play-orb{
  width:70px;height:70px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:26px;
  background:linear-gradient(135deg,var(--pink),var(--blue));
  box-shadow:0 20px 50px rgba(255,79,216,.34);
}
.section{padding:62px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px}
.section-head p{max-width:640px}
.grid{display:grid;gap:20px}
.grid.cards{grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:0 18px 56px rgba(26,30,48,.07);
  position:relative;overflow:hidden;
}
.card::after{
  content:"";position:absolute;right:-42px;top:-42px;width:120px;height:120px;border-radius:50%;
  background:linear-gradient(135deg,rgba(255,79,216,.16),rgba(74,199,255,.16));
}
.video-card{padding:0;overflow:hidden}
.video-frame{
  position:relative;aspect-ratio:16/10;background:#eef6ff;overflow:hidden;
}
.video-frame img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease,filter .45s ease}
.video-frame video{position:absolute;inset:0;width:100%;height:100%;opacity:0;pointer-events:none}
.video-play{
  position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:opacity .25s ease;
  background:linear-gradient(180deg,rgba(20,23,42,.04),rgba(20,23,42,.42));
}
.video-play span{
  width:62px;height:62px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:22px;
  background:linear-gradient(135deg,var(--pink),var(--blue));box-shadow:0 18px 52px rgba(0,0,0,.22);
}
.video-card:hover .video-frame img{transform:scale(1.06);filter:saturate(1.15)}
.video-card:hover .video-play{opacity:1}
.video-body{padding:20px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.tag{
  font-size:12px;font-weight:900;padding:7px 10px;border-radius:999px;
  background:rgba(74,199,255,.12);color:#096e9d;border:1px solid rgba(74,199,255,.22);
}
.stats{display:flex;gap:10px;flex-wrap:wrap;color:#555c70;font-size:13px;font-weight:800}
.topic-stream{display:grid;gap:14px}
.topic{
  display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:18px;border-radius:22px;
  background:rgba(255,255,255,.72);border:1px solid var(--line);
}
.barrage{
  min-height:170px;border-radius:28px;padding:24px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(255,79,216,.10),rgba(74,199,255,.12)),#fff;
  border:1px solid var(--line);
}
.barrage span{
  display:inline-flex;margin:8px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.76);
  box-shadow:0 10px 30px rgba(138,92,255,.10);font-weight:800;color:#383d51;
}
.tool-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tool{
  padding:20px;border-radius:24px;background:#fff;border:1px solid var(--line);
  min-height:150px;
}
.expert-card{display:flex;gap:16px;align-items:flex-start}
.avatar{
  width:56px;height:56px;flex:0 0 56px;border-radius:20px;
  background:linear-gradient(135deg,var(--pink),var(--blue));
  display:grid;place-items:center;color:#fff;font-weight:900;
}
.review-card blockquote{margin:0;color:#33394d;line-height:1.8;font-weight:700}
.review-card cite{display:block;margin-top:14px;color:var(--muted);font-style:normal;font-weight:800}
.partner-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.partner{
  display:grid;place-items:center;min-height:78px;border-radius:22px;
  background:rgba(255,255,255,.78);border:1px solid var(--line);font-weight:900;color:#434960;
}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;margin-bottom:12px;
}
.faq summary{cursor:pointer;font-weight:900;color:#1e2337}
.faq p{margin-top:12px}
.contact-panel{
  display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:stretch;
}
.qr{
  min-height:250px;border-radius:28px;background:
    linear-gradient(135deg,rgba(255,79,216,.15),rgba(74,199,255,.15)),#fff;
  border:1px solid var(--line);
  display:grid;place-items:center;text-align:center;padding:24px;
}
.qr-code{
  width:142px;height:142px;border-radius:20px;background:
    linear-gradient(90deg,#111 10px,transparent 10px) 0 0/28px 28px,
    linear-gradient(#111 10px,transparent 10px) 0 0/28px 28px,#fff;
  border:12px solid #fff;box-shadow:0 16px 40px rgba(0,0,0,.10);margin:0 auto 16px;
}
.breadcrumb{font-size:14px;color:var(--muted);font-weight:800;margin-bottom:18px}
.page-hero{padding:46px 0 24px}
.article-content{font-size:17px}
.article-content ul{color:var(--muted);line-height:1.9}
.site-footer{
  border-top:1px solid var(--line);background:rgba(255,255,255,.84);padding:36px 0;margin-top:50px;
}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.footer-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.footer-links a,.share-pill{
  padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:800;color:#454b60;
}
.domain-chip{
  display:inline-flex;align-items:center;padding:8px 10px;border-radius:999px;
  background:rgba(255,79,216,.10);color:#8f267d;font-weight:900;border:1px solid rgba(255,79,216,.18);
}
.toast{
  position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(30px);
  opacity:0;pointer-events:none;transition:.25s ease;z-index:40;
  background:#151829;color:#fff;padding:13px 18px;border-radius:999px;box-shadow:0 18px 48px rgba(0,0,0,.22);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media (max-width: 980px){
  .hero-grid,.grid.cards,.grid.two,.contact-panel,.footer-grid{grid-template-columns:1fr}
  .tool-list,.partner-wall{grid-template-columns:repeat(2,1fr)}
  .hero-card,.hero-card img{min-height:380px;height:380px}
  .section-head{display:block}
}
@media (max-width: 640px){
  .container{width:min(100% - 24px,1180px)}
  .header-inner{align-items:flex-start;flex-direction:column}
  .nav{justify-content:flex-start}
  .fake-search{border-radius:18px;display:grid;grid-template-columns:1fr auto}
  .fake-search input{min-width:0}
  .metric-row{grid-template-columns:1fr}
  .tool-list,.partner-wall{grid-template-columns:1fr}
  .topic{grid-template-columns:1fr}
  .section{padding:42px 0}
}