:root{
  --ink:#10182b;
  --ink-2:#17213a;
  --cyan:#33d6ff;
  --violet:#8d7cff;
  --rose:#ff6f91;
  --gold:#ffb36b;
  --cream:#fff7ec;
  --muted:#6d7891;
  --card:#ffffff;
  --line:rgba(16,24,43,.12);
  --shadow:0 20px 60px rgba(16,24,43,.18);
}
*{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:linear-gradient(180deg,#f7fbff 0%,#fff7ec 55%,#f8f4ff 100%);line-height:1.72}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block;border-radius:24px}
button,input{font:inherit}
.site-header{position:relative;z-index:5;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 8px 30px rgba(16,24,43,.06)}
.site-header.compact{position:relative}
.topbar{padding:9px 24px;text-align:center;color:#fff;background:linear-gradient(90deg,var(--ink),#26365d,var(--violet));font-size:14px;letter-spacing:.02em}
.nav{max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:24px;justify-content:space-between;padding:16px 22px}
.brand{display:flex;align-items:center;min-width:176px}
.nav-links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{padding:9px 13px;border-radius:999px;color:var(--ink-2);font-weight:700;background:rgba(51,214,255,.08);border:1px solid transparent;transition:.2s ease}
.nav-links a:hover{border-color:rgba(51,214,255,.55);transform:translateY(-1px);background:#fff}
.nav-toggle{display:none;border:0;border-radius:12px;background:var(--ink);color:#fff;padding:8px 12px}
.search-wrap{max-width:860px;margin:0 auto 18px;padding:0 22px;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}
.search-wrap input{width:100%;border:1px solid var(--line);border-radius:18px;padding:14px 18px;background:#fff;box-shadow:0 10px 24px rgba(16,24,43,.06);outline:none}
.search-wrap input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(51,214,255,.16)}
.search-wrap button,.btn,.share-row button{border:0;border-radius:18px;padding:13px 20px;font-weight:800;background:linear-gradient(135deg,var(--cyan),var(--violet));color:#fff;cursor:pointer;box-shadow:0 12px 26px rgba(51,214,255,.25);transition:.2s ease}
.search-wrap button:hover,.btn:hover,.share-row button:hover{transform:translateY(-2px)}
#searchHint{grid-column:1/-1;margin:0;color:var(--muted);font-size:14px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.section{max-width:1180px;margin:0 auto;padding:72px 22px}.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center;min-height:680px}.hero-text{position:relative}.breadcrumb{display:inline-block;margin:0 0 16px;padding:8px 12px;border-radius:999px;background:rgba(255,179,107,.18);color:#96520f;font-weight:800;font-size:14px}
h1,h2,h3,h4,h5,h6{line-height:1.18;margin:0 0 16px;color:var(--ink);letter-spacing:-.02em}h1{font-size:clamp(36px,6vw,68px)}h2{font-size:clamp(27px,4vw,42px)}h3{font-size:23px}.lead{font-size:18px;color:#31405f;margin:0 0 26px}.section-desc{max-width:850px;color:#4d5a75;font-size:17px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0}.btn{display:inline-flex;align-items:center;justify-content:center}.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.hero-stats span{padding:16px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 12px 30px rgba(16,24,43,.06)}.hero-stats strong{display:block;font-size:25px;color:var(--violet)}.hero-media{position:relative;margin:0}.hero-media img{box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.72)}figcaption{font-size:13px;color:var(--muted);margin-top:10px}.intro-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px}.notice-card,.feature-card,.expert-card,.video-card,details,blockquote{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 16px 38px rgba(16,24,43,.08)}.notice-card{background:linear-gradient(135deg,rgba(51,214,255,.14),rgba(255,179,107,.18))}.matrix,.expert-grid,.video-grid,.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature-card img{margin-bottom:18px}.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.tags span{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;background:rgba(141,124,255,.13);color:#5144bd;font-weight:800;font-size:13px}.video-card{padding:0;overflow:hidden}.video-card h2,.video-card h3,.video-card p,.video-card .tags{padding-left:20px;padding-right:20px}.video-card .tags{padding-bottom:20px}.thumb{min-height:230px;background-size:cover;background-position:center;position:relative;display:flex;align-items:center;justify-content:center;isolation:isolate}.thumb:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,24,43,.05),rgba(16,24,43,.62));opacity:.75;transition:.2s ease;z-index:-1}.thumb button{width:74px;height:74px;border-radius:50%;border:2px solid rgba(255,255,255,.9);background:rgba(51,214,255,.78);color:#fff;font-size:28px;opacity:0;transform:scale(.8);transition:.2s ease;cursor:pointer}.video-card:hover .thumb button,.video-card.hover .thumb button{opacity:1;transform:scale(1)}.video-card:hover{transform:translateY(-4px);transition:.2s ease}.meta{font-weight:800;color:#5b46c8}.expert-grid{grid-template-columns:repeat(4,1fr)}.expert-card a{display:inline-block;margin:10px 10px 0 0;color:#184b9f;font-weight:800}.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:24px 0}.logo-wall span{display:flex;align-items:center;justify-content:center;min-height:86px;border-radius:24px;background:linear-gradient(135deg,#fff,#ecfbff);border:1px solid var(--line);font-weight:900;color:#26365d}.howto{background:var(--ink);color:#fff;border-radius:30px;padding:28px;margin:24px 0}.howto h3{color:#fff}.howto li{margin:8px 0}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}details summary{cursor:pointer;font-weight:900;color:var(--ink)}.contact{display:grid;grid-template-columns:1fr .9fr;gap:28px;align-items:center}.share-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.review-grid{grid-template-columns:repeat(3,1fr)}blockquote{margin:0}blockquote p{font-size:16px;color:#31405f}cite{font-style:normal;font-weight:900;color:#8a5400}.footer{background:var(--ink);color:#dfe8ff;margin-top:40px}.footer h2{color:#fff;font-size:22px}.footer-grid{max-width:1180px;margin:0 auto;padding:44px 22px;display:grid;grid-template-columns:1.1fr .8fr 1.1fr;gap:28px}.footer img{border-radius:16px}.qr-row{display:flex;gap:14px;align-items:flex-start}.qr-row figure{margin:0}.qr-row figcaption{color:#dfe8ff;text-align:center}.footer code{display:block;white-space:normal;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px;color:#fff}.page-hero{padding-top:58px}.page-hero-grid{display:grid;grid-template-columns:1fr .82fr;gap:28px;align-items:center}.page-hero-grid img{box-shadow:var(--shadow)}
@media (max-width:980px){.hero,.intro-grid,.contact,.page-hero-grid{grid-template-columns:1fr}.hero{min-height:auto;padding-top:42px}.matrix,.expert-grid,.video-grid,.review-grid{grid-template-columns:repeat(2,1fr)}.logo-wall{grid-template-columns:repeat(3,1fr)}.hero-stats{grid-template-columns:1fr 1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.nav{align-items:flex-start}.nav-toggle{display:inline-block}.nav-links{display:none;position:absolute;left:22px;right:22px;top:118px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.nav-open .nav-links{display:flex;flex-direction:column}.search-wrap{grid-template-columns:1fr}.search-wrap button{width:100%}}
@media (max-width:640px){.section{padding:48px 16px}.topbar{font-size:12px;padding-left:12px;padding-right:12px}.nav{padding-left:16px;padding-right:16px}.brand{min-width:144px}.brand img{width:144px}.hero-stats,.matrix,.expert-grid,.video-grid,.review-grid,.faq-grid,.footer-grid{grid-template-columns:1fr}.logo-wall{grid-template-columns:repeat(2,1fr)}.hero-actions .btn{width:100%}.thumb{min-height:205px}h1{font-size:34px}h2{font-size:27px}.lead{font-size:16px}.footer-grid{padding:36px 16px}.qr-row{flex-wrap:wrap}}

.product-grid,.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.trust-grid{grid-template-columns:repeat(4,1fr)}.trust-grid h4,.trust-grid h5,.trust-grid h6{font-size:20px}.feature-card,.notice-card{overflow:hidden}.reviews{padding-top:44px}.page-hero .breadcrumb{margin-bottom:22px}.footer a{color:#fff;text-decoration:underline}.video-card .thumb button:focus{opacity:1;transform:scale(1);outline:3px solid #fff}@media (max-width:980px){.product-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.product-grid,.trust-grid{grid-template-columns:1fr}.search-wrap input{min-height:48px}.nav-links a{width:100%}}