:root{--bg:#fbfbf8;--card:#ffffff;--text:#202124;--muted:#6b7280;--line:#ece7de;--brand:#111827;--soft:#f5efe6;--accent:#d46a3d;--accent2:#47695f;--shadow:0 12px 30px 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;background:var(--bg);color:var(--text);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1160px,92vw);margin:auto}.topbar{background:#111827;color:#fff;font-size:13px;padding:8px 0}.domain-chip{font-weight:700}.header{position:sticky;top:0;background:rgba(251,251,248,.92);backdrop-filter:blur(14px);z-index:20;border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:18px}.logo{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.08em}.logo-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--accent),#f4b86b);display:grid;place-items:center;color:#fff;box-shadow:var(--shadow)}.nav-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap;font-size:15px}.nav-links a{padding:6px 8px;border-radius:999px}.nav-links a:hover{background:var(--soft)}.search-wrap{border-top:1px solid var(--line);padding:12px 0;background:#fff8}.fake-search{display:flex;gap:10px}.fake-search input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 18px;background:#fff;font-size:15px}.fake-search button,.btn{border:0;border-radius:999px;background:var(--brand);color:#fff;padding:12px 20px;font-weight:800;cursor:pointer}.search-note{margin:8px 0 0;color:var(--muted);font-size:13px;display:none}.hero{padding:56px 0 36px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:#6b4d32;font-weight:800;font-size:13px}.hero h1{font-size:clamp(34px,5vw,64px);line-height:1.12;margin:18px 0 16px;letter-spacing:-.04em}.lead{font-size:18px;color:#4b5563;margin:0 0 22px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}.hero-card{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}.image-desc{font-size:12px;color:var(--muted);padding:10px 14px;background:#fff}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.stat b{display:block;font-size:22px}.section{padding:46px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section h2{font-size:clamp(26px,3vw,42px);line-height:1.18;margin:0}.section p.sub{color:var(--muted);margin:8px 0 0}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 8px 22px rgba(17,24,39,.04)}.product-card{overflow:hidden;padding:0}.product-card .body{padding:18px}.product-card h3,.card h3{margin:0 0 8px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag{background:#f3f4f6;color:#4b5563;border-radius:999px;padding:4px 10px;font-size:12px}.video-card{position:relative;overflow:hidden;padding:0}.video-cover{position:relative}.video-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.45),transparent 65%)}.play{position:absolute;inset:auto 18px 18px auto;width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;opacity:0;transform:scale(.9);transition:.2s;z-index:2}.play:before{content:"";border-left:15px solid var(--accent);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:4px}.video-card:hover .play{opacity:1;transform:scale(1)}.video-meta{position:absolute;left:16px;bottom:14px;color:#fff;z-index:2;font-weight:800}.metrics{display:flex;gap:12px;color:var(--muted);font-size:13px;flex-wrap:wrap}.quote{font-size:15px;color:#374151}.stars{color:#b45309;letter-spacing:2px}.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 16px}.faq details+details{margin-top:12px}.faq summary{font-weight:800;cursor:pointer}.footer{background:#111827;color:#e5e7eb;padding:38px 0;margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:22px}.footer a{color:#e5e7eb}.breadcrumb{font-size:14px;color:var(--muted);padding:18px 0}.page-hero{padding:28px 0 20px}.page-hero h1{font-size:clamp(32px,4vw,52px);margin:0 0 12px}.article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)}.notice{background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;border-radius:18px;padding:14px}.toc{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.toc a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;color:#4b5563}.buy-box{background:linear-gradient(135deg,#fff,#f7efe4);border:1px solid var(--line);border-radius:24px;padding:22px}.mobile-video{aspect-ratio:16/9;background:#111827;border-radius:20px;display:grid;place-items:center;color:#fff;overflow:hidden}.kbd{font-family:ui-monospace,Menlo,Consolas,monospace;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:6px;padding:2px 6px}.sr-only{position:absolute;left:-9999px}@media (max-width:880px){.hero-grid,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}.nav{align-items:flex-start}.nav-links{font-size:14px}.section-head{display:block}.stats{grid-template-columns:1fr}.hero{padding-top:34px}.card{padding:16px}}