:root{--bg:#0b0f14;--panel:#111821;--card:#18212b;--line:#2f3b47;--text:#ecf2f8;--muted:#9babbd;--orange:#f28c28;--blue:#12345a;--silver:#8ea2b8;--radius:22px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.72}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:14px 6vw}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand-mark{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--orange),#ffb260);color:#111}.brand small{color:var(--muted);font-weight:500}.site-nav{display:flex;gap:22px;color:#d8e4ef}.site-nav a:hover{color:var(--orange)}.nav-toggle{display:none;background:var(--card);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:8px 10px}.container{width:min(1180px,88vw);margin:auto}.hero{position:relative;overflow:hidden;padding:92px 0 70px;background:radial-gradient(circle at 78% 18%,rgba(18,52,90,.95),transparent 34%),linear-gradient(180deg,#0b0f14,#111821)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#111;background:var(--orange);padding:6px 12px;border-radius:999px;font-weight:800}.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.1;margin:22px 0}.hero p{color:#c9d6e4;font-size:18px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:12px 20px;font-weight:800;border:1px solid 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var(--line);border-radius:var(--radius);padding:22px;min-height:100%;position:relative;overflow:hidden}.card h3{margin:0 0 10px}.card p{color:var(--muted);margin:0}.card img{background:#0b0f14;border-radius:18px;border:1px solid var(--line);margin-bottom:16px}.video-card{padding:14px}.video-cover{position:relative}.play{position:absolute;inset:auto auto 22px 22px;background:var(--orange);color:#111;border-radius:999px;padding:8px 13px;font-weight:900}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.tag{border:1px solid var(--line);color:#cdd9e5;border-radius:999px;padding:4px 10px;font-size:13px}.steps{counter-reset:step}.step{padding-left:70px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;width:38px;height:38px;border-radius:12px;background:var(--orange);display:grid;place-items:center;color:#111;font-weight:900}.panel{background:linear-gradient(135deg,#111821,#0c1016);border:1px solid var(--line);border-radius:28px;padding:32px}.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.list{display:grid;gap:12px}.list li{list-style:none;background:#111821;border:1px solid var(--line);border-radius:15px;padding:13px 16px;color:#cbd7e4}.faq details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:800}.form{display:grid;gap:14px}.form input,.form select,.form textarea{width:100%;background:#0d131a;color:var(--text);border:1px solid var(--line);border-radius:14px;padding:13px}.form textarea{min-height:120px}.site-footer{border-top:1px solid var(--line);background:#080b0f;padding:42px 6vw;color:#c7d3df}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px}.site-footer a{color:var(--orange)}.article-list{display:grid;gap:18px}.article{display:grid;grid-template-columns:160px 1fr;gap:18px;align-items:center}.notice{border-left:4px solid var(--orange);padding:14px 18px;background:#111821;border-radius:14px;color:#cbd7e4}@media(max-width:900px){.site-nav{display:none;position:absolute;top:72px;left:6vw;right:6vw;background:#111821;border:1px solid var(--line);border-radius:16px;padding:16px;flex-direction:column}.site-nav.open{display:flex}.nav-toggle{display:block}.hero-grid,.split,.footer-grid{grid-template-columns:1fr}.grid-3,.grid-4{grid-template-columns:1fr 1fr}.article{grid-template-columns:1fr}.hero{padding-top:56px}}@media(max-width:560px){.grid-3,.grid-4,.hero-stats{grid-template-columns:1fr}.site-header{padding:12px 4vw}.container{width:min(100% - 28px,1180px)}.hero h1{font-size:34px}.section{padding:56px 0}.brand small{display:none}}