:root{--bg:#fbfdff;--card:rgba(255,255,255,.78);--ink:#20263f;--muted:#63708c;--pink:#ff4db8;--blue:#22c8ff;--violet:#7d5cff;--line:rgba(125,92,255,.18);--shadow:0 24px 80px rgba(84,99,210,.18);--radius:28px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% 0%,rgba(255,77,184,.14),transparent 28%),radial-gradient(circle at 85% 8%,rgba(34,200,255,.18),transparent 30%),linear-gradient(180deg,#fff,#f6fbff 46%,#fff);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{position:relative;padding:18px clamp(18px,4vw,72px) 28px;z-index:5}.top-glow{position:absolute;inset:-100px -20vw 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12px;border-radius:999px;color:#3b4563;font-weight:700;font-size:.94rem}.main-nav a:hover{background:linear-gradient(135deg,rgba(255,77,184,.12),rgba(34,200,255,.16));color:#111936}.nav-toggle{display:none;border:0;border-radius:999px;padding:10px 16px;background:#111936;color:#fff;font-weight:800}.search-shell{position:relative;display:flex;align-items:center;gap:10px;max-width:980px;margin:18px auto 0;padding:10px;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow);border-radius:999px}.search-shell input{flex:1;min-width:0;border:0;outline:0;background:transparent;padding:14px 18px;color:var(--ink);font-size:1rem}.search-shell button,.btn{border:0;cursor:pointer;padding:13px 22px;border-radius:999px;background:linear-gradient(135deg,var(--pink),var(--blue));color:#fff;font-weight:900;box-shadow:0 16px 32px rgba(34,200,255,.23)}.search-tip{position:absolute;left:24px;right:24px;top:calc(100% + 8px);margin:0;color:var(--muted);font-size:.92rem}.hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:34px;align-items:center;padding:76px clamp(18px,5vw,82px) 44px}.hero:before{content:"";position:absolute;inset:10% -10% auto auto;width:520px;height:520px;background:conic-gradient(from 140deg,rgba(255,77,184,.18),rgba(34,200,255,.18),rgba(125,92,255,.13),rgba(255,77,184,.18));filter:blur(18px);border-radius:50%;z-index:-1}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.66);color:#6b4bd6;font-weight:800}.hero h1{font-size:clamp(2.5rem,6vw,5.9rem);line-height:1.02;margin:18px 0 18px;letter-spacing:-.07em}.gradient-text{background:linear-gradient(120deg,#111936 0%,#8758ff 48%,#ff4db8 78%,#21bdf2 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:1.12rem;color:var(--muted);max-width:780px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}.btn.secondary{background:#fff;color:#222b47;border:1px solid var(--line);box-shadow:0 12px 30px rgba(80,90,160,.1)}.domain-pill{display:inline-flex;margin-top:22px;padding:10px 16px;border-radius:999px;background:#fff;border:1px dashed rgba(34,200,255,.55);color:#54617f;font-weight:700}.hero-media{position:relative}.hero-media img{border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #fff}.hero-card{position:absolute;left:-22px;bottom:-24px;width:min(360px,82%);padding:18px;border-radius:24px;background:rgba(255,255,255,.84);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow);backdrop-filter:blur(16px)}.main-section{padding:42px clamp(18px,5vw,82px)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2,.page-title h1{font-size:clamp(1.9rem,4vw,3.4rem);line-height:1.1;margin:0;letter-spacing:-.04em}.section-head p,.page-title p{color:var(--muted);max-width:720px}.grid{display:grid;gap:20px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{position:relative;overflow:hidden;padding:22px;border-radius:var(--radius);background:var(--card);border:1px solid rgba(255,255,255,.96);box-shadow:0 20px 58px rgba(78,96,180,.12)}.card h3{margin:0 0 8px;font-size:1.28rem}.card p{color:var(--muted);margin:0 0 12px}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:linear-gradient(135deg,rgba(255,77,184,.1),rgba(34,200,255,.14));font-weight:800;color:#53607d;font-size:.84rem}.video-card{padding:0;transition:transform .28s ease,box-shadow .28s ease}.video-card:hover{transform:translateY(-8px);box-shadow:0 28px 90px rgba(255,77,184,.18)}.video-poster{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef7ff}.video-poster img,.video-poster video{width:100%;height:100%;object-fit:cover}.video-poster video{position:absolute;inset:0;opacity:0}.play-orb{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,77,184,.04),rgba(34,200,255,.06));opacity:.0;transition:opacity .28s ease}.video-card:hover .play-orb{opacity:1}.play-orb span{display:grid;place-items:center;width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.86);color:var(--pink);font-weight:900;font-size:1.8rem;box-shadow:0 18px 60px rgba(34,200,255,.28)}.video-body{padding:20px}.metrics{display:flex;gap:12px;flex-wrap:wrap;color:#6d7893;font-weight:800;font-size:.9rem}.barrage{display:flex;flex-direction:column;gap:12px}.bubble{align-self:flex-start;max-width:88%;padding:12px 16px;border-radius:18px;background:rgba(255,255,255,.76);border:1px solid var(--line);box-shadow:0 12px 28px rgba(64,83,160,.08)}.bubble:nth-child(even){align-self:flex-end;background:linear-gradient(135deg,rgba(255,77,184,.12),rgba(34,200,255,.12))}.expert{display:flex;gap:16px;align-items:center}.avatar{display:grid;place-items:center;flex:0 0 58px;width:58px;height:58px;border-radius:20px;background:linear-gradient(135deg,var(--violet),var(--blue));color:#fff;font-weight:900}.quote-card blockquote{margin:0;color:#3b4563}.quote-card cite{display:block;margin-top:12px;color:#8a5be8;font-weight:900;font-style:normal}.logo-wall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.partner{display:grid;place-items:center;min-height:88px;border-radius:22px;background:rgba(255,255,255,.8);border:1px solid var(--line);font-weight:900;color:#52607c}.faq-item{border-bottom:1px solid var(--line);padding:18px 0}.faq-item summary{cursor:pointer;font-weight:900;color:#222b47}.faq-item p{color:var(--muted)}.contact-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:center}.page-hero{padding:60px clamp(18px,5vw,82px) 20px}.breadcrumb{color:#7a86a3;font-weight:800;margin-bottom:18px}.breadcrumb a{color:#6d50d8}.feature-list{display:grid;gap:14px}.feature-list li{padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.68);border:1px solid var(--line)}.article-block{max-width:980px;margin:auto}.article-block h2{font-size:2rem}.notice{padding:16px 18px;border-radius:22px;background:linear-gradient(135deg,rgba(255,77,184,.12),rgba(34,200,255,.14));border:1px solid rgba(34,200,255,.24);color:#44506f;font-weight:800}.site-footer{margin-top:56px;padding:42px clamp(18px,5vw,82px);background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(240,248,255,.92));border-top:1px solid rgba(125,92,255,.13)}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:24px}.footer-logo{margin-bottom:14px}.qr-img{border-radius:20px;border:1px solid #fff;box-shadow:0 16px 48px rgba(70,80,170,.12)}.copyright{margin-top:24px;color:#6e7893}.light-table{width:100%;border-collapse:separate;border-spacing:0 10px}.light-table th{text-align:left;color:#63708c}.light-table td,.light-table th{padding:12px 14px;background:rgba(255,255,255,.72)}.light-table tr td:first-child,.light-table tr th:first-child{border-radius:16px 0 0 16px}.light-table tr td:last-child,.light-table tr th:last-child{border-radius:0 16px 16px 0}@media (max-width:980px){.nav-wrap{border-radius:26px;align-items:flex-start}.nav-toggle{display:inline-flex}.main-nav{display:none;position:absolute;top:78px;left:0;right:0;padding:16px;background:rgba(255,255,255,.96);border-radius:24px;box-shadow:var(--shadow)}.main-nav.open{display:grid}.hero{grid-template-columns:1fr;padding-top:42px}.grid.three,.grid.four,.grid.two,.footer-grid,.contact-panel{grid-template-columns:1fr}.section-head{display:block}.logo-wall{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-card{position:relative;left:auto;bottom:auto;margin-top:14px;width:100%}.search-shell{border-radius:26px;align-items:stretch;flex-direction:column}.search-shell button{width:100%}}@media (max-width:620px){.hero h1{font-size:2.55rem}.main-section{padding-top:28px}.card{padding:18px}.video-body{padding:16px}.search-tip{position:static;padding:0 14px 10px}.logo-mark{width:48px;height:48px}.hero-actions .btn{width:100%;text-align:center}.page-hero{padding-top:42px}}