:root{
  --bg:#f8fbff;
  --bg2:#fff7fd;
  --text:#1a1633;
  --muted:#68627d;
  --brand:#ff4dad;
  --cyan:#39d8ff;
  --violet:#7663ff;
  --card:rgba(255,255,255,.78);
  --border:rgba(119,99,255,.18);
  --shadow:0 24px 70px rgba(87,73,189,.16);
  --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;background:radial-gradient(circle at 12% 4%,rgba(255,77,173,.18),transparent 28%),radial-gradient(circle at 88% 10%,rgba(57,216,255,.22),transparent 32%),linear-gradient(180deg,var(--bg),#fff 38%,var(--bg2));color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:20px;justify-content:space-between;padding:16px clamp(18px,4vw,58px);backdrop-filter:blur(20px);background:rgba(255,255,255,.74);border-bottom:1px solid rgba(119,99,255,.12)}
.logo{display:flex;align-items:center;gap:10px;min-width:max-content}.logo-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-weight:900;box-shadow:0 12px 34px rgba(255,77,173,.26)}.logo strong{font-size:20px;letter-spacing:.02em}.logo em{display:block;font-style:normal;font-size:12px;color:var(--muted);margin-top:-4px}
.nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap;justify-content:center}.nav a{padding:9px 12px;border-radius:999px;color:#302b4e;font-weight:700;font-size:14px}.nav a:hover,.nav a.active{background:linear-gradient(135deg,rgba(255,77,173,.14),rgba(57,216,255,.14));color:#111}
.header-domain{font-size:12px;color:var(--muted);white-space:nowrap}.menu-toggle{display:none;border:0;background:#fff;border-radius:14px;padding:10px 12px;box-shadow:var(--shadow);font-weight:800}
.search-wrap{padding:14px clamp(18px,4vw,58px);background:rgba(255,255,255,.54);border-bottom:1px solid rgba(119,99,255,.08)}.fake-search{max-width:900px;margin:auto;display:flex;gap:10px;background:#fff;border:1px solid var(--border);border-radius:22px;padding:8px;box-shadow:0 12px 34px rgba(57,216,255,.12)}.fake-search input{flex:1;border:0;outline:0;padding:13px 16px;font-size:15px;background:transparent}.fake-search button{border:0;border-radius:16px;padding:0 20px;background:linear-gradient(135deg,var(--brand),var(--violet));color:#fff;font-weight:900;cursor:pointer}.search-note{display:none;text-align:center;color:var(--brand);font-size:13px;margin:8px 0 0}.search-note.show{display:block}
main{position:relative}.container{width:min(1180px,calc(100% - 36px));margin:0 auto}.hero{padding:74px 0 54px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr);gap:34px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.7);color:var(--violet);font-weight:800;font-size:13px}.h1{font-size:clamp(38px,6vw,72px);line-height:1.06;margin:18px 0 18px;letter-spacing:-.04em}.grad{background:linear-gradient(100deg,var(--brand),var(--violet),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}.lead{font-size:18px;color:#4c4665;max-width:720px}.hero-actions,.section-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:13px 20px;font-weight:900;border:1px solid var(--border);background:#fff;box-shadow:0 14px 34px rgba(87,73,189,.12)}.btn.primary{background:linear-gradient(135deg,var(--brand),var(--violet));color:#fff;border:0}.btn.cyan{background:linear-gradient(135deg,var(--cyan),#7d7cff);color:#fff;border:0}.domain-pill{margin-top:22px;padding:12px 16px;border-radius:18px;background:rgba(255,255,255,.74);border:1px solid var(--border);color:var(--muted)}
.hero-card{position:relative;border-radius:34px;padding:14px;background:linear-gradient(135deg,rgba(255,77,173,.35),rgba(57,216,255,.35));box-shadow:var(--shadow);overflow:hidden}.hero-card:before{content:"";position:absolute;inset:-80px;background:conic-gradient(from 120deg,transparent,var(--brand),transparent,var(--cyan),transparent);filter:blur(36px);opacity:.35;animation:spin 8s linear infinite}.hero-card figure{position:relative;margin:0;border-radius:26px;overflow:hidden;background:#fff}.hero-card img{aspect-ratio:4/3;object-fit:cover}.hero-card figcaption{position:absolute;left:16px;right:16px;bottom:16px;padding:14px;border-radius:20px;background:rgba(255,255,255,.78);backdrop-filter:blur(12px);font-weight:800}.float-stat{position:absolute;right:26px;top:28px;z-index:3;padding:12px 14px;border-radius:20px;background:rgba(255,255,255,.86);box-shadow:var(--shadow);font-weight:900;color:var(--brand)}@keyframes spin{to{transform:rotate(1turn)}}
.section{padding:54px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:22px}.section h2{font-size:clamp(28px,4vw,46px);line-height:1.16;margin:0 0 8px}.section-desc{margin:0;color:var(--muted);max-width:720px}.grid{display:grid;gap:18px}.grid.cards{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}
.card,.video-card,.topic-card,.expert-card,.review-card,.faq-item,.contact-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;backdrop-filter:blur(14px)}.video-card{padding:12px;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}.video-card:hover{transform:translateY(-6px);box-shadow:0 28px 80px rgba(255,77,173,.18)}.video-shell{position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,rgba(255,77,173,.18),rgba(57,216,255,.18))}.video-shell video,.video-shell img{width:100%;aspect-ratio:16/10;object-fit:cover}.video-shell:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.1),rgba(255,77,173,.16));opacity:0;transition:.25s}.video-card:hover .video-shell:after{opacity:1}.play-button{position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%) scale(.88);width:64px;height:64px;border-radius:50%;border:0;background:rgba(255,255,255,.9);color:var(--brand);font-size:25px;box-shadow:0 18px 40px rgba(0,0,0,.16);opacity:0;transition:.25s;z-index:2;cursor:pointer}.video-card:hover .play-button,.video-card.is-preview .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}.badge{position:absolute;left:12px;top:12px;border-radius:999px;padding:6px 10px;background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-size:12px;font-weight:900;z-index:2}.video-card h3{margin:14px 8px 6px;font-size:20px}.video-card p{margin:0 8px 12px;color:var(--muted);font-size:14px}.stats,.tags{display:flex;gap:8px;flex-wrap:wrap;margin:12px 8px}.stats span,.tags span,.mini-tag{font-size:12px;padding:5px 9px;border-radius:999px;background:rgba(118,99,255,.08);color:#524a80}.stats span strong{color:var(--brand)}
.topic-card{position:relative;overflow:hidden}.topic-card:before{content:"";position:absolute;right:-60px;top:-60px;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,var(--cyan),transparent 66%);opacity:.28}.topic-card h3,.card h3,.expert-card h3,.contact-card h3{margin:0 0 8px}.topic-live{display:flex;flex-direction:column;gap:10px}.danmu{display:inline-flex;width:max-content;max-width:100%;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--border);box-shadow:0 10px 24px rgba(87,73,189,.08);animation:floatIn 5s ease-in-out infinite}.danmu:nth-child(2){animation-delay:.7s}.danmu:nth-child(3){animation-delay:1.4s}@keyframes floatIn{50%{transform:translateX(14px)}}
.ai-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px}.ai-panel{min-height:280px;border-radius:32px;overflow:hidden;position:relative;background:#fff}.ai-panel img{width:100%;height:100%;object-fit:cover}.ai-panel .panel-copy{position:absolute;inset:auto 18px 18px;z-index:2;background:rgba(255,255,255,.82);padding:16px;border-radius:22px}.expert-card img,.contact-card img{border-radius:22px;aspect-ratio:4/3;object-fit:cover;margin-bottom:14px}.partners{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.partner{display:grid;place-items:center;min-height:78px;border-radius:22px;background:#fff;border:1px solid var(--border);font-weight:900;color:#5b527d}.steps{counter-reset:step}.step{position:relative;padding-left:54px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;display:grid;place-items:center;font-weight:900}.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-item summary{font-weight:900;cursor:pointer}.faq-item p{color:var(--muted);margin-bottom:0}.review-card p{font-size:15px;color:#4b4564}.reviewer{display:flex;align-items:center;gap:10px;margin-top:14px;font-weight:900}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff}.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.contact-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.contact-list li{padding:10px 12px;background:#fff;border-radius:16px;border:1px solid var(--border)}.qr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.qr-grid img{aspect-ratio:1/1;object-fit:cover}.breadcrumb{padding:22px 0 0;color:var(--muted);font-size:14px}.breadcrumb a{color:var(--violet);font-weight:800}.page-hero{padding:48px 0 28px}.article-rich{background:rgba(255,255,255,.76);border:1px solid var(--border);border-radius:32px;padding:28px;box-shadow:var(--shadow)}.article-rich h2,.article-rich h3{margin-top:0}.article-rich p{color:#4d4666}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:0;margin:18px 0;list-style:none}.feature-list li{padding:14px;border-radius:18px;background:#fff;border:1px solid var(--border)}
.site-footer{margin-top:44px;padding:36px clamp(18px,4vw,58px);background:linear-gradient(135deg,rgba(255,77,173,.08),rgba(57,216,255,.12));border-top:1px solid var(--border)}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:20px;align-items:start}.footer-links{display:flex;gap:10px;flex-wrap:wrap}.footer-links a{padding:8px 10px;border-radius:999px;background:#fff;border:1px solid var(--border);font-size:13px}.copyright{margin-top:22px;color:var(--muted);font-size:13px}.socials{display:flex;gap:8px;flex-wrap:wrap}.socials span{padding:7px 10px;border-radius:999px;background:#fff;border:1px solid var(--border);font-size:12px}
.particle{position:fixed;pointer-events:none;z-index:-1;border-radius:50%;filter:blur(1px);opacity:.32;background:linear-gradient(135deg,var(--brand),var(--cyan))}
@media (max-width:980px){.site-header{align-items:flex-start}.menu-toggle{display:block}.nav{display:none;position:absolute;left:18px;right:18px;top:74px;background:#fff;border:1px solid var(--border);border-radius:24px;padding:14px;box-shadow:var(--shadow)}.nav.open{display:flex}.header-domain{display:none}.hero-grid,.ai-strip,.contact-grid,.footer-grid{grid-template-columns:1fr}.grid.cards,.grid.two,.grid.four,.faq-list,.partners,.feature-list{grid-template-columns:1fr 1fr}.hero{padding-top:42px}.section-head{display:block}.section-actions{margin-top:14px}}
@media (max-width:640px){.grid.cards,.grid.two,.grid.four,.faq-list,.partners,.feature-list,.qr-grid{grid-template-columns:1fr}.fake-search{border-radius:18px}.fake-search button{padding:0 14px}.h1{font-size:36px}.hero-actions .btn,.section-actions .btn{width:100%;justify-content:center}.card,.video-card,.topic-card,.expert-card,.review-card,.faq-item,.contact-card{border-radius:22px}.site-header{padding:13px 18px}.logo em{display:none}}

.mt-18{margin-top:18px}