:root{--brand:#111827;--muted:#6b7280;--line:#e5e7eb;--soft:#f8fafc;--accent:#ff6b6b;--accent2:#6ee7b7;--card:#ffffff;--shadow:0 20px 60px rgba(17,24,39,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--brand);background:#fff;line-height:1.72}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,92vw);margin:auto}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,231,235,.8)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.brand-logo{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.02em}.logo-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#111827,#ff6b6b 58%,#6ee7b7);display:grid;place-items:center;color:#fff;box-shadow:var(--shadow)}.nav-links{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;color:#374151}.nav-links a:hover{color:var(--accent)}.domain-pill{border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:#fff;font-size:13px;color:var(--muted)}.search-wrap{border-bottom:1px solid var(--line);background:#fff}.search-box{display:flex;gap:10px;padding:12px 0}.search-box input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 18px;font-size:15px;outline:none}.btn{border:0;border-radius:999px;background:#111827;color:#fff;padding:12px 20px;font-weight:700;cursor:pointer}.btn.light{background:#fff;color:#111827;border:1px solid var(--line)}.search-result{display:none;margin:-4px 0 14px;color:var(--muted);font-size:14px}.hero{padding:58px 0 42px;background:radial-gradient(circle at 20% 10%,#ffe6df,transparent 32%),radial-gradient(circle at 85% 5%,#e0f7ff,transparent 32%),linear-gradient(180deg,#fff,#fbfbfd)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center}.kicker{display:inline-flex;gap:8px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 13px;color:#6b7280;font-size:14px}.hero h1{font-size:clamp(36px,6vw,68px);line-height:1.08;margin:18px 0 16px;letter-spacing:-.04em}.hero p{font-size:18px;color:#4b5563;margin:0 0 22px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-card{position:relative;border-radius:34px;overflow:hidden;box-shadow:var(--shadow);background:#fff}.hero-card figcaption{position:absolute;left:18px;right:18px;bottom:18px;border-radius:22px;background:rgba(255,255,255,.78);backdrop-filter:blur(10px);padding:12px 14px;font-size:13px;color:#374151}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.stat{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.stat b{font-size:24px;display:block}.section{padding:68px 0}.section.alt{background:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section h2{font-size:clamp(26px,4vw,42px);line-height:1.16;margin:0}.section-head p{max-width:620px;color:var(--muted);margin:8px 0 0}.grid{display:grid;gap:22px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:0 10px 30px rgba(17,24,39,.04)}.card h3{margin:10px 0 8px;font-size:21px}.card p{color:#5b6472;margin:0}.product-img,.scene-img{border-radius:22px;overflow:hidden;background:#f3f4f6}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tag{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:5px 9px;background:#fff;color:#6b7280}.video-card{position:relative;overflow:hidden;border-radius:28px;background:#111827;color:#fff;min-height:260px}.video-card img{width:100%;height:100%;object-fit:cover;filter:saturate(1.02)}.video-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.02),rgba(0,0,0,.58));display:flex;align-items:flex-end;padding:20px}.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.82);width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.86);display:grid;place-items:center;opacity:0;transition:.25s}.play-button:before{content:"";border-left:20px solid #111827;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:5px}.video-card:hover .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}.video-meta{position:relative;z-index:2}.video-meta h3{margin:0 0 6px}.review{display:flex;gap:14px}.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#ffddd2,#dbeafe);flex:0 0 auto;display:grid;place-items:center;font-weight:800}.stars{color:#f59e0b;letter-spacing:2px}.faq details{background:#fff;border:1px solid var(--line);border-radius:22px;margin-bottom:12px;padding:18px 20px}.faq summary{cursor:pointer;font-weight:800}.faq p{color:#5b6472;margin:10px 0 0}.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:18px}.page-hero{padding:52px 0;background:linear-gradient(135deg,#fff7ed,#eff6ff)}.page-hero h1{font-size:clamp(32px,5vw,54px);margin:0 0 12px}.content-body{padding:52px 0}.article{background:#fff;border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:var(--shadow)}.article h2,.article h3{margin-top:28px}.list-check{padding-left:0;list-style:none}.list-check li{padding:9px 0;border-bottom:1px solid var(--line)}.footer{background:#0b1220;color:#e5e7eb;padding:48px 0 30px}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,.8fr);gap:28px}.footer a,.footer p{color:#cbd5e1}.footer h3,.footer h4{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#cbd5e1}.domain-text{font-weight:700}.notice{background:#fff7ed;border:1px solid #fed7aa;border-radius:20px;padding:14px 16px;color:#9a3412}.data-block{white-space:pre-wrap;background:#0b1220;color:#d1fae5;border-radius:22px;padding:18px;overflow:auto;font-size:13px;line-height:1.55}@media (max-width:900px){.hero-grid,.grid.three,.grid.two,.footer-grid{grid-template-columns:1fr}.section-head{display:block}.nav{align-items:flex-start}.nav-links{display:none}.stats{grid-template-columns:1fr}.hero{padding-top:36px}.search-box{flex-direction:column}.btn{width:100%}}