:root{--bg: #f6f7f8;--surface: #ffffff;--surface-2: #eef2f5;--ink: #0c1117;--muted: #5c6672;--muted-2: #858c95;--line: #e2e7ec;--blue: #0a6c90;--blue-2: #054968;--orange: #d13246;--orange-2: #ad2638;--steel: #68737f;--shadow: 0 18px 46px rgba(12, 17, 23, .1);--radius: 8px;--container: min(1180px, calc(100vw - 48px) );color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Arial,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea,select{font:inherit}.container{width:var(--container);margin:0 auto}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(226,231,236,.92);background:#fffffff5;backdrop-filter:blur(12px)}.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;min-height:86px;gap:24px}.brand{display:flex;align-items:center;gap:13px;min-width:284px}.brand-mark{display:block;flex:0 0 auto;width:54px;height:54px;place-items:center;border-radius:var(--radius);background:#fff;border:1px solid rgba(10,108,144,.16);box-shadow:0 10px 24px #0a6c9024;overflow:hidden}.brand-mark img{width:100%;height:100%;object-fit:contain;padding:4px}.brand strong{display:block;color:#06090d;font-size:clamp(1.05rem,1.45vw,1.28rem);line-height:1.1;white-space:nowrap}.brand span{display:block;color:var(--muted);font-size:.86rem;line-height:1.3}.nav{display:flex;align-items:center;gap:34px;color:#111827;font-size:.95rem;font-weight:760}.nav a{padding:8px 0;border-bottom:2px solid transparent}.nav a:hover{color:var(--orange);border-bottom-color:var(--orange)}.header-actions{display:flex;align-items:center;gap:12px}.mobile-menu-toggle{display:none;min-height:42px;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);cursor:pointer;padding:9px 12px;font-size:.9rem;font-weight:880}.mobile-menu-toggle span[aria-hidden=true]{font-size:1.12rem;line-height:1}.mobile-menu-toggle[aria-expanded=true]{border-color:#0a6c9052;color:var(--blue);box-shadow:0 10px 24px #0a6c901f}.lang-toggle{display:inline-flex;align-items:center;gap:2px;border:0;border-radius:0;overflow:visible;background:transparent}.lang-toggle button{border:0;background:transparent;color:#111827;cursor:pointer;padding:8px 7px;font-size:.88rem;font-weight:800}html[data-lang=zh] .lang-toggle [data-set-lang=zh],html[data-lang=en] .lang-toggle [data-set-lang=en]{color:var(--orange)}.btn{display:inline-flex;min-height:44px;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;padding:12px 20px;font-weight:850;line-height:1.1;transition:transform .16s ease,border-color .16s ease,background .16s ease,color .16s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--orange);color:#fff;box-shadow:0 12px 28px #d132463d}.btn-primary:hover{background:var(--orange-2)}.btn-secondary{border-color:var(--line);background:#fff;color:#111827}.hero .btn-secondary{border-color:#ffffffe6}.btn-dark{background:var(--ink);color:#fff}.header-emergency{min-height:46px;padding-inline:20px;white-space:nowrap}.hero{position:relative;min-height:616px;overflow:hidden;background:#050610;color:#fff;padding:0}.hero:before{position:absolute;inset:0;content:"";background:radial-gradient(circle at 78% 42%,rgba(23,42,60,.16),transparent 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0;max-width:720px;color:#ffffffd1;font-size:clamp(1rem,1.35vw,1.16rem);line-height:1.85}.cta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px}.hero .btn{min-height:64px;min-width:168px;font-size:1rem}.hero-trust-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;max-width:790px;margin-top:46px}.trust-item{display:inline-flex;align-items:center;gap:10px;position:relative;color:#ffffffeb;font-size:1rem;font-weight:850;padding-left:34px}.trust-item:before{position:absolute;left:0;top:50%;display:block;width:24px;height:24px;transform:translateY(-50%);border:2px solid currentColor;border-radius:50%;content:""}.trust-item:after{position:absolute;left:8px;top:50%;display:block;width:7px;height:12px;transform:translateY(-62%) rotate(45deg);border-right:2px solid currentColor;border-bottom:2px solid currentColor;content:""}.emergency-strip{position:relative;z-index:4;margin-top:-44px}.strip-inner{display:grid;grid-template-columns:1.15fr 1fr 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