:root{--ink:#162436;--muted:#5d6b7a;--line:#dce4ec;--brand:#1f4060;--brand2:#315f82;--bg:#f6f8fb;--card:#fff;--accent:#f0f5f9}*{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:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{width:min(1180px,92vw);margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--brand)}.logo-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--brand);color:#fff}.top-nav{display:flex;gap:12px;flex-wrap:wrap;font-size:14px}.top-nav a{padding:8px 10px;border-radius:999px;color:#35485e}.top-nav a:hover{background:var(--accent);color:var(--brand)}.search-bar{padding:0 0 16px}.search-bar label{display:block;font-weight:700;margin-bottom:6px}.search-box{display:flex;gap:8px}.search-box input{flex:1;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px}.search-box button,.btn{border:0;background:var(--brand);color:white;padding:12px 18px;border-radius:12px;font-weight:700;cursor:pointer}.search-msg{margin:8px 0 0;color:var(--muted)}.hero{padding:72px 0 42px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center}.eyebrow{color:var(--brand2);font-weight:800;letter-spacing:.04em}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.15;margin:10px 0}.lead{font-size:18px;color:var(--muted)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}.btn-light{background:#fff;color:var(--brand)}.trust-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}.trust-list span,.tag{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center;color:#30465b}.media-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:18px;box-shadow:0 20px 60px rgba(21,42,64,.08)}.media-card figure{margin:0}.media-card figcaption{font-size:14px;color:var(--muted);margin-top:10px}.section{padding:42px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:22px}.section h2{font-size:clamp(26px,4vw,38px);line-height:1.2;margin:0}.section-desc{color:var(--muted);max-width:760px}.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:22px;padding:22px;box-shadow:0 14px 35px rgba(21,42,64,.05)}.card h3{margin:0 0 10px;color:var(--brand)}.metric{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px}.video-card{position:relative;overflow:hidden}.video-thumb{position:relative;border-radius:18px;overflow:hidden;background:#dfe8f0}.play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:.25s;background:rgba(10,28,45,.18)}.play::after{content:"▶";display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:#fff;color:var(--brand);font-size:26px}.video-card:hover .play{opacity:1}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.pill{font-size:13px;border:1px solid var(--line);border-radius:999px;padding:5px 10px;background:#fff;color:var(--muted)}.steps{counter-reset:step}.step{display:grid;grid-template-columns:52px 1fr;gap:14px}.step:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800}.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:800;color:var(--brand)}.quote{font-size:15px}.site-footer{margin-top:42px;background:#15283c;color:#e8eef4;padding:40px 0}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px}.footer-grid p{color:#c4d0dc}.footer-logo{color:#fff}.page-hero{padding:50px 0 24px}.breadcrumb{color:var(--muted);font-size:14px;margin-bottom:10px}.list{display:grid;gap:14px}.notice{border-left:5px solid var(--brand);background:#fff;padding:16px;border-radius:14px;color:var(--muted)}@media(max-width:860px){.hero-grid,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}.nav-wrap{align-items:flex-start;flex-direction:column}.search-box{flex-direction:column}.trust-list{grid-template-columns:1fr}.section-head{display:block}.top-nav{max-height:120px;overflow:auto}.hero{padding-top:38px}}