:root{--bg:#f7f8fb;--card:#ffffff;--ink:#1d2433;--muted:#5f6b7a;--line:#e7eaf0;--brand:#e94372;--brand2:#ff8a3d;--soft:#fff1f5;--shadow:0 18px 45px rgba(29,36,51,.08)}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,92vw);margin:0 auto}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--line)}.nav{height:74px;display:flex;align-items:center;gap:24px;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:22px}.logo-mark{width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;color:#fff;box-shadow:var(--shadow)}.menu{display:flex;gap:18px;align-items:center;color:#334155;font-weight:700}.menu a{padding:8px 10px;border-radius:999px}.menu a:hover{background:var(--soft);color:var(--brand)}.search-row{border-top:1px solid var(--line);padding:14px 0;background:#fff}.search-box{display:flex;gap:10px}.search-box input{flex:1;border:1px solid var(--line);border-radius:999px;padding:14px 18px;font-size:15px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:13px 22px;font-weight:800;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 10px 28px rgba(233,67,114,.22);cursor:pointer}.btn.secondary{background:#fff;color:var(--brand);border:1px solid #ffd0dd;box-shadow:none}.hero{padding:58px 0 36px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:var(--soft);color:var(--brand);border:1px solid #ffd6e1;border-radius:999px;padding:6px 12px;font-weight:800}.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.12;margin:18px 0 18px;letter-spacing:-.04em}.hero p{font-size:18px;color:var(--muted);margin:0 0 26px}.cta{display:flex;gap:14px;flex-wrap:wrap}.domain-pill{margin-top:18px;color:#4b5563;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;display:inline-block}.hero-card{position:relative;border-radius:30px;background:#fff;padding:18px;box-shadow:var(--shadow);overflow:hidden}.hero-card:before{content:"";position:absolute;inset:auto -20% -35% 25%;height:220px;background:radial-gradient(circle,rgba(233,67,114,.22),transparent 60%)}.video-thumb{position:relative;border-radius:24px;overflow:hidden;background:#111;min-height:280px}.video-thumb img{width:100%;height:100%;object-fit:cover}.play{position:absolute;inset:0;display:grid;place-items:center;background:rgba(0,0,0,.08);transition:.25s}.play span{width:68px;height:68px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;color:var(--brand);font-size:30px;transform:scale(.92);transition:.25s}.video-card:hover .play,.hero-card:hover .play{background:rgba(0,0,0,.28)}.video-card:hover .play span,.hero-card:hover .play span{transform:scale(1.05)}.metrics{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}.metrics b{background:#f8fafc;border:1px solid var(--line);border-radius:999px;padding:7px 10px;font-size:13px}.section{padding:42px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section h2{font-size:30px;margin:0;letter-spacing:-.03em}.section-desc{color:var(--muted);max-width:680px}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 10px 30px rgba(29,36,51,.05)}.card h3{margin:0 0 8px}.tag{display:inline-flex;background:#f1f5f9;color:#475569;border-radius:999px;padding:4px 10px;font-size:13px;font-weight:800}.video-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 10px 30px rgba(29,36,51,.06)}.video-card .video-thumb{border-radius:0;min-height:210px}.video-info{padding:18px}.video-info h3{margin:0 0 8px}.steps{counter-reset:step}.step{display:grid;grid-template-columns:58px 1fr;gap:15px}.step-no{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;font-weight:900}.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:900}.footer{margin-top:48px;background:#111827;color:#e5e7eb;padding:42px 0 22px}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:24px}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;color:#aab2c0}.breadcrumb{font-size:14px;color:#64748b;margin:24px 0}.page-hero{padding:32px 0}.page-hero h1{font-size:42px;margin:8px 0}.notice{background:#fff7ed;border:1px solid #fed7aa;border-radius:18px;padding:15px;color:#9a3412}.share-buttons{display:flex;gap:12px;flex-wrap:wrap}.share-buttons button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;font-weight:800;cursor:pointer}.image-desc{font-size:13px;color:#64748b;margin-top:8px}.mobile-menu{display:none}@media (max-width:900px){.hero-grid,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}.menu{display:none}.mobile-menu{display:inline-flex}.nav{height:auto;padding:14px 0;align-items:flex-start}.hero{padding-top:34px}.section-head{display:block}.video-thumb{min-height:220px}.search-box{flex-direction:column}.btn{width:100%}}