:root{
  --bg:#fbfdff;
  --card:#ffffffcc;
  --ink:#101527;
  --muted:#667085;
  --pink:#ff4dbd;
  --blue:#35c8ff;
  --violet:#7b61ff;
  --green:#25e4c8;
  --line:#e9eef7;
  --shadow:0 24px 70px rgba(38,63,100,.14);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 8% 10%,rgba(255,77,189,.18),transparent 28%),radial-gradient(circle at 88% 12%,rgba(53,200,255,.22),transparent 30%),linear-gradient(180deg,#fff 0%,#f6fbff 55%,#fff 100%);line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.skip-link{position:absolute;left:-999px;top:8px;background:#fff;padding:10px 16px;border-radius:12px;z-index:1000}.skip-link:focus{left:12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:blur(22px);border-bottom:1px solid rgba(233,238,247,.8)}
.header-inner{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 22px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.02em;font-size:22px}.logo-badge{width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--pink),var(--blue));box-shadow:0 12px 38px rgba(255,77,189,.28);position:relative}.logo-badge:after{content:"";position:absolute;inset:10px;border-radius:10px;background:#fff;clip-path:polygon(36% 25%,75% 50%,36% 75%)}
.nav-toggle{display:none;border:0;border-radius:16px;background:#fff;box-shadow:var(--shadow);padding:10px 12px;font-weight:800}.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}.main-nav a{padding:9px 12px;border-radius:999px;color:#344054;font-size:14px;font-weight:700}.main-nav a:hover,.main-nav a:focus{background:linear-gradient(135deg,rgba(255,77,189,.14),rgba(53,200,255,.16));color:#111827}
.search-strip{max-width:1200px;margin:0 auto;padding:0 22px 16px}.fake-search{display:flex;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px;box-shadow:0 14px 42px rgba(53,200,255,.08)}.fake-search input{flex:1;border:0;outline:none;background:transparent;font-size:15px;padding:10px 14px}.fake-search button,.btn{border:0;border-radius:999px;padding:12px 20px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--pink),var(--blue));box-shadow:0 16px 38px rgba(255,77,189,.22);cursor:pointer}.search-status{min-height:22px;margin:8px 12px 0;color:var(--muted);font-size:13px}
main{position:relative}.section{max-width:1200px;margin:0 auto;padding:72px 22px}.section.tight{padding-top:34px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.78);border:1px solid var(--line);color:#5b62d6;font-weight:900;font-size:13px}.section-title{font-size:clamp(28px,4vw,52px);line-height:1.12;margin:16px 0 14px;letter-spacing:-.05em}.section-desc{max-width:760px;color:var(--muted);font-size:17px;margin:0 0 28px}.gradient-text{background:linear-gradient(90deg,var(--pink),var(--violet),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero{max-width:1200px;margin:0 auto;padding:62px 22px 72px;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}.hero h1{font-size:clamp(42px,7vw,82px);line-height:.98;margin:14px 0 18px;letter-spacing:-.07em}.hero p{font-size:18px;color:#4b5565;max-width:660px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.btn.secondary{background:#fff;color:#111827;border:1px solid var(--line);box-shadow:0 12px 34px rgba(53,200,255,.12)}.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}.trust-row strong{display:block;font-size:22px}.trust-row span{color:var(--muted);font-size:13px}.hero-visual{position:relative}.hero-card{border-radius:36px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.9);background:#fff;position:relative}.hero-card:before{content:"";position:absolute;inset:-2px;background:linear-gradient(135deg,rgba(255,77,189,.2),rgba(53,200,255,.2));z-index:1;pointer-events:none}.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}.floating-panel{position:absolute;left:-20px;bottom:26px;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border:1px solid var(--line);border-radius:22px;padding:16px 18px;box-shadow:var(--shadow);max-width:270px}.floating-panel b{display:block}.domain-pill{display:inline-flex;align-items:center;gap:6px;margin-top:10px;padding:6px 10px;border-radius:999px;background:rgba(53,200,255,.12);color:#185d76;font-size:12px;font-weight:900}.glow-orb{position:absolute;width:170px;height:170px;border-radius:50%;right:-35px;top:-35px;background:radial-gradient(circle,rgba(255,77,189,.38),transparent 70%);filter:blur(3px);pointer-events:none}
.grid{display:grid;gap:22px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--card);border:1px solid rgba(233,238,247,.9);border-radius:var(--radius);box-shadow:0 18px 54px rgba(38,63,100,.10);overflow:hidden;position:relative}.card.pad{padding:24px}.video-card figure{margin:0;position:relative;overflow:hidden}.video-card img,.video-card video{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eef7ff}.video-card video{position:absolute;inset:0;opacity:0;pointer-events:none}.play-overlay{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(180deg,transparent,rgba(16,21,39,.25));opacity:0;transition:.28s ease}.play-overlay span{width:70px;height:70px;border-radius:50%;background:rgba(255,255,255,.84);box-shadow:0 0 0 12px rgba(255,255,255,.24),0 0 42px rgba(53,200,255,.8);position:relative}.play-overlay span:after{content:"";position:absolute;left:29px;top:22px;border-left:18px solid var(--pink);border-top:13px solid transparent;border-bottom:13px solid transparent}.video-card:hover .play-overlay{opacity:1}.video-card:hover img{transform:scale(1.04)}.video-card img{transition:.32s ease}.video-body{padding:20px}.video-body h3{font-size:20px;margin:0 0 8px}.video-body p{color:var(--muted);margin:0 0 13px}.meta{display:flex;gap:10px;flex-wrap:wrap;color:#506075;font-size:13px}.meta span{background:#f4f8ff;border:1px solid #e7eefb;border-radius:999px;padding:5px 9px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag{font-size:12px;font-weight:800;color:#5b62d6;background:rgba(123,97,255,.1);border-radius:999px;padding:5px 9px}.caption{font-size:12px;color:#667085;padding:10px 16px 0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}.feature-list{display:grid;gap:14px}.feature{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px}.feature i{width:38px;height:38px;border-radius:14px;display:inline-block;background:linear-gradient(135deg,rgba(255,77,189,.2),rgba(53,200,255,.24));flex:0 0 auto}.feature h3,.feature h4{margin:0 0 5px}.feature p{margin:0;color:var(--muted)}
.topic-wall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.topic{min-height:190px;padding:22px;border-radius:26px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(244,250,255,.82));box-shadow:0 16px 44px rgba(38,63,100,.08)}.topic strong{font-size:22px}.topic p{color:var(--muted)}.danmu{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}.danmu span{font-size:12px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:#4b5565}
.expert-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.expert img{aspect-ratio:1/1;object-fit:cover}.expert h3{margin:16px 18px 4px}.expert p{margin:0 18px 18px;color:var(--muted)}
.review-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.review{padding:20px}.stars{color:#f59e0b;letter-spacing:2px}.review p{color:#3e4758}.review b{display:block}.review small{color:var(--muted)}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.partner{height:86px;border-radius:20px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);font-weight:900;color:#596176;box-shadow:0 10px 32px rgba(38,63,100,.06)}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.faq-item h3{font-size:17px;margin:0 0 8px}.faq-item p{margin:0;color:var(--muted)}
.contact-box{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.qr{background:#fff;border:1px solid var(--line);border-radius:28px;padding:18px;text-align:center}.qr img{border-radius:22px;margin:auto}.breadcrumb{max-width:1200px;margin:0 auto;padding:20px 22px 0;color:var(--muted);font-size:14px}.breadcrumb a{color:#4b5bdc;font-weight:800}.page-hero{max-width:1200px;margin:0 auto;padding:55px 22px 20px}.page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.05;margin:12px 0}.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px}.stat b{font-size:26px}.stat span{display:block;color:var(--muted)}
.site-footer{margin-top:40px;background:linear-gradient(135deg,#111827,#18243d);color:#fff}.footer-inner{max-width:1200px;margin:auto;padding:44px 22px;display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px}.site-footer a{color:#dce9ff}.site-footer p,.site-footer li{color:#c9d5eb}.footer-links{display:grid;gap:8px}.copyright{border-top:1px solid rgba(255,255,255,.12);padding:16px 22px;text-align:center;color:#d4ddf0}.share{display:flex;gap:8px;flex-wrap:wrap}.share a{border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:7px 10px;font-size:13px}.light-note{font-size:13px;color:var(--muted)}
@media (max-width:960px){.hero,.split,.contact-box,.footer-inner{grid-template-columns:1fr}.video-grid,.expert-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-wall,.review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.logo-wall{grid-template-columns:repeat(3,1fr)}.floating-panel{position:relative;left:auto;bottom:auto;margin-top:14px}.stat-strip{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.header-inner{align-items:flex-start}.nav-toggle{display:inline-flex}.main-nav{display:none;width:100%;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{background:#fff;border:1px solid var(--line)}.header-inner{flex-wrap:wrap}.hero{padding-top:34px}.trust-row,.video-grid,.topic-wall,.expert-grid,.review-grid,.faq-list,.logo-wall,.stat-strip{grid-template-columns:1fr}.fake-search{border-radius:24px;align-items:stretch;flex-direction:column}.fake-search button{width:100%}.section{padding:54px 18px}.footer-inner{padding:34px 18px}.hero h1{letter-spacing:-.05em}.logo{font-size:19px}}
@media (prefers-reduced-motion:no-preference){.card,.topic,.feature,.partner{transition:transform .28s ease,box-shadow .28s ease}.card:hover,.topic:hover,.feature:hover,.partner:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.glow-orb{animation:pulseGlow 4s ease-in-out infinite}@keyframes pulseGlow{0%,100%{transform:scale(.9);opacity:.7}50%{transform:scale(1.08);opacity:1}}}