:root{--bg:#f6f7fb;--card:#fff;--text:#162033;--muted:#667085;--line:#e5e7eb;--brand:#3157d5;--brand2:#13285e;--soft:#eef3ff;--ok:#137a4e;--max:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72}a{color:inherit;text-decoration:none}a:hover{color:var(--brand)}img{max-width:100%}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.nav{min-height:66px;display:flex;align-items:center;gap:24px}.logo{font-weight:800;font-size:22px;letter-spacing:-.5px;color:#142b68}.navlinks{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:#465063}.navspacer{flex:1}.search-mini{border:1px solid var(--line);background:#fafafa;border-radius:12px;padding:9px 12px;min-width:210px}.hero{padding:54px 0 24px}.eyebrow{font-size:13px;color:var(--brand);font-weight:700;margin-bottom:8px}.hero h1,.article h1{font-size:clamp(30px,5vw,48px);line-height:1.18;margin:0 0 16px;letter-spacing:-1.2px}.lead{font-size:18px;color:#4d596c;max-width:760px}.searchbox{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:8px;display:flex;box-shadow:0 8px 28px rgba(22,32,51,.06)}.searchbox input{flex:1;border:0;outline:0;font-size:17px;padding:13px;background:transparent}.searchbox button{border:0;border-radius:11px;background:var(--brand);color:#fff;padding:0 18px;font-weight:700}.hot{margin-top:13px;color:var(--muted);font-size:14px}.hot a{margin-right:14px;color:#45516a}.adlabel{font-size:12px;color:#8a94a6;margin:28px 0 6px}.promo{display:block;border-radius:18px;overflow:hidden;border:1px solid #cdd8ff;background:linear-gradient(135deg,#172a5d,#3157d5 58%,#6d87e7);color:#fff;position:relative}.promo-inner{padding:28px 34px;display:flex;align-items:center;gap:20px}.promo h3{margin:0 0 4px;font-size:26px}.promo p{margin:0;opacity:.9}.promo-cta{margin-left:auto;background:#fff;color:#17306e;padding:10px 16px;border-radius:10px;font-weight:800;white-space:nowrap}.section{padding:26px 0}.section h2{font-size:26px;margin:0 0 16px;letter-spacing:-.4px}.section-head{display:flex;align-items:end;gap:12px}.section-head p{margin:0 0 18px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.cat-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:15px;padding:18px}.card h3{font-size:17px;margin:0 0 8px}.card p{font-size:14px;color:#657084;margin:0}.site-card{display:flex;flex-direction:column;min-height:175px}.site-icon{width:38px;height:38px;border-radius:11px;background:var(--soft);display:grid;place-items:center;font-weight:800;color:var(--brand);margin-bottom:12px}.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.tag{font-size:12px;padding:3px 7px;border-radius:999px;background:#f1f3f6;color:#596579}.card-actions{margin-top:auto;padding-top:14px;display:flex;gap:12px;font-size:13px}.official{color:var(--ok);font-weight:700}.article{padding:44px 0 60px}.article-body{max-width:820px}.article-body h2{font-size:27px;margin-top:40px;line-height:1.3}.article-body h3{font-size:20px;margin-top:28px}.article-body p{font-size:16.5px}.note{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:15px 17px;margin:20px 0}.compare{overflow:auto;margin:20px 0}.compare table{width:100%;border-collapse:collapse;background:#fff}.compare th,.compare td{text-align:left;padding:12px 14px;border:1px solid var(--line);vertical-align:top}.compare th{background:#f6f8fc}.crumbs{font-size:13px;color:#7c8799;margin-bottom:18px}.crumbs a{color:#5c6980}.verify{margin-top:30px;color:#7c8799;font-size:13px}.sourcebox{margin-top:14px;font-size:13px;color:#697589}.footer{margin-top:50px;background:#111a2c;color:#c6ccda;padding:36px 0}.footer a{color:#dfe4ef}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:30px}.footer h4{margin:0 0 10px;color:#fff}.footer p{margin:5px 0;font-size:14px}.pillbar{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0 26px}.pill{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px}.empty{padding:36px;text-align:center;color:var(--muted)}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.cat-grid{grid-template-columns:repeat(2,1fr)}.nav{flex-wrap:wrap;padding:10px 0;gap:12px}.navlinks{display:flex;order:3;width:100%;overflow-x:auto;flex-wrap:nowrap;gap:16px;padding:2px 0 6px;scrollbar-width:none}.navlinks::-webkit-scrollbar{display:none}.navlinks a{white-space:nowrap}.footer-grid{grid-template-columns:1fr 1fr}.promo-inner{padding:22px}.promo-cta{display:none}}@media(max-width:560px){.wrap{width:min(100% - 22px,var(--max))}.hero{padding-top:34px}.grid,.cat-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.search-mini{display:none}.hero h1,.article h1{font-size:32px}.promo h3{font-size:22px}.promo p{font-size:14px}.article-body h2{font-size:23px}}