:root{--navy:#071a33;--blue:#1e6fff;--ink:#14263f;--muted:#66768a;--line:#e5ecf4}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f6f9fc;line-height:1.75}a{text-decoration:none;color:inherit}.wrap{max-width:1180px;margin:auto;padding:0 26px}.sitehead{background:#081a32;color:white;position:sticky;top:0;z-index:9}.navrow{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font-weight:800;font-size:21px}.brand b{color:#61a0ff}.navlinks{display:flex;gap:26px;font-size:14px}.navlinks a:hover{color:#71aaff}.btn{display:inline-block;background:var(--blue);color:white;padding:11px 21px;border-radius:7px;font-weight:650}.btn.ghost{background:transparent;border:1px solid #b4c7e3;color:inherit}.hero{background:linear-gradient(118deg,#081b36,#123b72);color:white;padding:82px 0 75px}.eyebrow{letter-spacing:.17em;font-size:12px;color:#83b5ff;font-weight:700}.hero h1{font-size:clamp(34px,4.4vw,57px);line-height:1.24;margin:14px 0 20px}.hero p{color:#d0def1;max-width:750px;font-size:17px}.crumb{font-size:13px;color:#a9c1e0;margin-bottom:18px}.section{padding:65px 0}.section h2{font-size:30px;line-height:1.3;margin:0 0 16px}.lead{color:var(--muted);max-width:840px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px;margin-top:28px}.card{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 9px 28px rgba(10,35,70,.035);display:block}.card img{width:100%;height:220px;object-fit:cover;display:block}.card .pad{padding:24px}.card h3{margin:5px 0 9px;font-size:21px}.card p{color:var(--muted);font-size:14px}.pill{display:inline-block;font-size:12px;color:#1460cd;background:#eaf2ff;padding:3px 9px;border-radius:4px}.link{color:#1e6fff;font-weight:700;font-size:14px}.white{background:white}.twocol{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.twocol img{width:100%;border-radius:12px;object-fit:cover;max-height:430px}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:25px}.fact{background:#edf4ff;padding:20px;border-radius:8px}.fact b{display:block;font-size:19px;color:#135ac2}.fact span{font-size:13px;color:#566b84}.tablebox{overflow-x:auto;background:white;border:1px solid var(--line);border-radius:10px;margin-top:25px}table{width:100%;border-collapse:collapse;min-width:600px}th,td{padding:15px 17px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}th{background:#edf4ff;color:#173e75}tr:last-child td{border-bottom:0}.cta{background:#0c2b55;color:white;padding:54px 0}.cta p{color:#d0def1}.foot{background:#06182f;color:#c5d2e5;padding:35px 0;font-size:13px}.foot a{color:#fff}.notice{background:#fff7e5;border-left:4px solid #e3a52c;padding:12px 18px;font-size:13px;color:#78551b;margin-top:25px}.subnav{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.subnav a{background:#e9f1fb;color:#21518c;padding:8px 14px;border-radius:6px;font-size:13px}.muted{color:var(--muted)}@media(max-width:760px){.navrow{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.navlinks{gap:13px;flex-wrap:wrap}.navlinks a{font-size:12px}.grid,.twocol{grid-template-columns:1fr}.facts{grid-template-columns:1fr 1fr}.hero{padding:50px 0}.section{padding:43px 0}.card img{height:205px}}

/* V4.2 curated legacy case photographs */
.archive-note{margin:22px 0;padding:14px 18px;background:#edf4ff;color:#315475;border-radius:8px;font-size:14px}.legacy-hero{width:100%;max-height:640px;object-fit:contain;background:#081a32;border-radius:12px}.legacy-label{color:#64748b;font-size:13px}.archive-title{font-size:25px;margin:40px 0 5px}

/* V4.3 polish — additive, no changes to original layout rules */
:root{--twsx-blue:#1e6fff;--twsx-navy:#0b1730}
html{scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a:focus-visible,button:focus-visible{outline:3px solid #62a4ff!important;outline-offset:4px}
img{max-width:100%;height:auto}a,button{transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* V5.6: 咨询模块统一清晰可读 */
section.cta{background:#102f59!important;color:#fff!important}
section.cta h2{color:#fff!important}section.cta p{color:#edf4ff!important}
section.cta a.btn{background:#fff!important;color:#123e74!important;border-color:#fff!important}