:root{--bg:#f7f6f2;--card:#fff;--blue:#eef5fa;--purple:#f3f0fa;--apricot:#fff4e8;--ink:#252638;--text:#444757;--muted:#727487;--brand:#6556b8;--aux:#4e7897;--accent:#c97348;--border:#e5e4e8;--shadow:0 10px 28px rgba(37,38,56,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.78;font-size:16px}a{color:inherit;text-decoration:none}a:hover{color:var(--brand)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(101,86,184,.28);outline-offset:2px}img{display:block;max-width:100%;height:auto}.wrap{width:min(1160px,calc(100% - 64px));margin:auto}.reading{width:min(780px,100%);margin-inline:auto}.site-header{position:relative;z-index:20;background:rgba(247,246,242,.96);border-bottom:1px solid var(--border)}.brandbar{min-height:66px;display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center}.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}.logo-box{display:inline-flex;padding:7px;background:#fff;border:1px solid var(--border);border-radius:9px;box-shadow:0 3px 12px rgba(37,38,56,.04)}.logo-box img{max-height:32px;width:auto}.brand-note{color:var(--muted);font-size:14px}.top-actions{display:flex;gap:8px}.btn,.mini-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--ink);font-weight:700;cursor:pointer}.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.mainnav{border-top:1px solid var(--border);background:#fff}.navrow{display:flex;align-items:center;gap:22px;min-height:48px;overflow:hidden}.navrow a{font-size:14px;white-space:nowrap;padding:13px 0;border-bottom:2px solid transparent}.navrow a.active{font-weight:800;color:var(--brand);border-bottom-color:var(--brand)}.special-strip{background:var(--blue);border-top:1px solid #e2edf3}.special-row{display:flex;gap:16px;min-height:38px;align-items:center;font-size:13px;color:var(--aux)}.special-row strong{color:var(--ink)}.mobile-head{display:none}.hero{padding:54px 0 42px}.hero-grid,.split{display:grid;grid-template-columns:1.08fr 1fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--purple);color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.04em}h1,h2,h3{color:var(--ink);line-height:1.28;margin-top:0}h1{font-size:35px;margin:14px 0 18px}h2{font-size:26px;margin-bottom:16px}h3{font-size:19px;margin-bottom:9px}.lead{font-size:17px;color:#515466;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.section{padding:54px 0}.section.soft-blue{background:var(--blue)}.section.soft-purple{background:var(--purple)}.section.soft-apricot{background:var(--apricot)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head p{margin:0;color:var(--muted);max-width:620px}.media-frame{background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:var(--shadow)}.media-frame img{margin:auto;object-fit:contain;object-position:center;max-height:240px;width:auto}.media-frame.banner img{max-height:300px}.media-frame.app img{max-height:300px}.grid2,.grid3,.grid4{display:grid;gap:18px}.grid2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:15px;padding:22px;box-shadow:0 4px 18px rgba(37,38,56,.035)}.card p:last-child{margin-bottom:0}.card .more{display:inline-flex;margin-top:8px;color:var(--brand);font-weight:800}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.flow-step{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.flow-step b{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--purple);color:var(--brand);margin-bottom:12px}.article-shell{padding:46px 0 64px}.article-top{margin-bottom:28px}.crumb{font-size:13px;color:var(--muted);margin-bottom:14px}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 1fr;gap:34px;align-items:start}.article-layout.no-media{display:block}.prose section{margin:0 0 28px;padding:24px;background:#fff;border:1px solid var(--border);border-radius:15px}.prose p{margin:0 0 14px}.prose p:last-child{margin-bottom:0}.callout{padding:20px;border-left:4px solid var(--brand);background:var(--purple);border-radius:0 12px 12px 0}.related{margin-top:34px}.related-links{display:flex;flex-wrap:wrap;gap:10px}.related-links a{padding:10px 14px;background:#fff;border:1px solid var(--border);border-radius:999px;color:var(--brand);font-weight:700}.faq{display:grid;gap:14px}.faq article{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}.faq h2{font-size:19px;margin-bottom:8px}.service-list{display:grid;gap:14px}.service-row{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}.site-footer{background:#242534;color:#e8e8ef;padding:46px 0 90px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:28px}.footer-brand p{color:#c7c7d1;font-size:14px}.footer-col h3{color:#fff;font-size:15px}.footer-col a{display:block;color:#cfcfda;font-size:14px;padding:5px 0}.copyright{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#bdbdca;font-size:13px}.mobile-bottom{display:none}.overlay{position:fixed;inset:0;background:rgba(37,38,56,.46);z-index:60;opacity:0;pointer-events:none;transition:.2s}.overlay.open{opacity:1;pointer-events:auto}.panel{position:fixed;z-index:70;background:#fff;box-shadow:0 18px 60px rgba(37,38,56,.2);opacity:0;pointer-events:none;transition:.2s}.panel.open{opacity:1;pointer-events:auto}.search-panel{top:10%;left:50%;transform:translateX(-50%);width:min(680px,calc(100% - 32px));border-radius:16px;padding:22px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.close-btn{min-width:44px;min-height:44px;border:1px solid var(--border);background:#fff;border-radius:10px;cursor:pointer}.search-input{width:100%;height:48px;border:1px solid var(--border);border-radius:12px;padding:0 14px;font:inherit;margin:14px 0}.search-results{display:grid;gap:8px;max-height:45vh;overflow:auto}.search-results a{padding:12px;border-radius:10px;background:var(--bg)}.menu-panel{top:60px;left:0;right:0;padding:18px 16px 24px}.menu-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.menu-group h3{font-size:14px}.menu-group a{display:block;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
@media(max-width:1024px){.wrap{width:min(100% - 48px,1160px)}.mainnav,.special-strip,.brandbar{display:none}.mobile-head{display:flex;min-height:58px;align-items:center;justify-content:space-between}.mobile-tools{display:flex;gap:6px}.hero-grid,.split{grid-template-columns:1fr 1fr}.grid4{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.article-layout{grid-template-columns:minmax(0,1fr) 300px}}
@media(max-width:768px){body{font-size:15.5px;padding-bottom:58px}.wrap{width:calc(100% - 32px)}h1{font-size:29px}h2{font-size:23px}.hero{padding:36px 0 30px}.hero-grid,.split,.article-layout{grid-template-columns:1fr}.section{padding:38px 0}.grid3,.grid2{grid-template-columns:1fr}.tag-grid{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:1fr}.media-frame img{max-height:190px}.media-frame.banner img{max-height:220px}.media-frame.app img{max-height:250px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.mobile-bottom{position:fixed;z-index:40;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);min-height:58px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border)}.mobile-bottom a{display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--muted)}.mobile-bottom a.active{color:var(--brand)}.site-footer{padding-bottom:92px}.section-head{align-items:start;flex-direction:column}.article-shell{padding:32px 0 48px}}
@media(max-width:480px){.wrap{width:calc(100% - 32px)}.tag-grid{grid-template-columns:1fr 1fr}.grid4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.brand span{font-size:15px}.card{padding:19px}.menu-groups{grid-template-columns:1fr}}