:root{--bg:#f7f9fc;--card:#ffffff;--text:#172033;--muted:#61708a;--brand:#315cff;--brand2:#20a67a;--line:#e7ecf5;--shadow:0 18px 45px rgba(30,54,90,.10)}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","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(1180px,92vw);margin:auto}.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px}.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:24px}.logo-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--brand),#7b61ff);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow)}.menu{display:flex;gap:18px;flex-wrap:wrap;font-weight:700;color:#34415a}.menu a:hover{color:var(--brand)}.search-wrap{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}.fake-search{display:flex;gap:10px}.fake-search input{flex:1;border:1px solid var(--line);border-radius:14px;padding:13px 16px;font-size:16px}.btn{border:0;border-radius:14px;background:var(--brand);color:#fff;padding:13px 20px;font-weight:800;cursor:pointer;box-shadow:var(--shadow)}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}.hero{padding:54px 0 24px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}.eyebrow{display:inline-flex;gap:8px;background:#eef3ff;color:var(--brand);border-radius:999px;padding:6px 12px;font-weight:800}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;margin:18px 0}.lead{font-size:18px;color:var(--muted)}.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.domain-pill{margin-top:18px;padding:10px 14px;border:1px dashed #b8c5df;border-radius:14px;background:#fff;color:#40516f}.hero-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:18px;box-shadow:var(--shadow)}.video-card{position:relative;overflow:hidden;border-radius:24px;background:#101828}.video-card img{width:100%;height:auto}.play{position:absolute;inset:0;display:grid;place-items:center;background:rgba(10,20,35,.18);opacity:0;transition:.25s}.video-card:hover .play{opacity:1}.play span{width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;color:var(--brand);font-size:32px;box-shadow:var(--shadow)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.stat{background:#f6f8fc;border:1px solid var(--line);border-radius:18px;padding:12px;text-align:center}.stat b{display:block;font-size:20px}.section{padding:54px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:22px}.section-title h2{font-size:32px;margin:0}.section-title p{color:var(--muted);max-width:560px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 10px 26px rgba(30,54,90,.06)}.card h3{margin:8px 0 8px}.icon{font-size:32px}.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag{font-size:13px;background:#eef3ff;color:#315cff;border-radius:999px;padding:4px 10px}.steps{counter-reset:step}.step{display:grid;grid-template-columns:70px 1fr;gap:14px;align-items:start}.step-no{width:54px;height:54px;border-radius:18px;background:#13233f;color:#fff;display:grid;place-items:center;font-weight:900}.timeline{display:grid;gap:14px}.update{display:grid;grid-template-columns:100px 1fr;gap:12px}.faq-item{border-bottom:1px solid var(--line);padding:16px 0}.faq-q{font-weight:900;cursor:pointer}.faq-a{color:var(--muted);display:none}.faq-item.active .faq-a{display:block}.reviews{grid-template-columns:repeat(2,1fr)}.stars{color:#f6a700}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:18px}.footer{background:#101828;color:#d9e2f2;padding:34px 0;margin-top:42px}.footer a{color:#fff}.breadcrumb{font-size:14px;color:var(--muted);padding:18px 0}.page-head{padding:38px 0;background:#fff;border-bottom:1px solid var(--line)}.page-head h1{font-size:42px;margin:0 0 8px}.notice{background:#fff8e8;border:1px solid #ffe0a0;border-radius:18px;padding:14px;margin-top:14px}.image-desc{font-size:13px;color:#6b7890;margin-top:8px}.mobile-menu{display:none}.share-row{display:flex;gap:10px;flex-wrap:wrap}.share-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;cursor:pointer}@media(max-width:860px){.hero-grid,.contact-box{grid-template-columns:1fr}.grid,.reviews{grid-template-columns:1fr}.menu{display:none}.mobile-menu{display:block}.stats{grid-template-columns:1fr}.section-title{display:block}.update{grid-template-columns:1fr}.nav{min-height:66px}.hero{padding-top:34px}}