:root{--bg:#F3FBFF;--soft:#EAF8FF;--soft2:#F7FCFF;--white:#FFFFFF;--blue:#22AEEA;--deep:#147FB8;--text:#1F2D3A;--muted:#5C6F82;--light:#8BA1B5;--line:rgba(34,174,234,0.16);--shadow:0 14px 36px rgba(34,174,234,0.12);--btn:linear-gradient(135deg,#6DE6FF 0%,#22AEEA 48%,#168DCC 100%);--footer:#0B3D5C}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.menu-open{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(34,174,234,.10)}.desktop-head{width:min(1180px,calc(100% - 32px));margin:auto;min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand-logo img{width:154px;max-height:48px;object-fit:contain}.nav-core{display:flex;align-items:center;justify-content:center;gap:10px;flex:1}.nav-core a{color:var(--deep);background:rgba(34,174,234,.08);border-radius:999px;padding:9px 18px;font-weight:700;white-space:nowrap;border:1px solid transparent;transition:.25s}.nav-core a:hover,.nav-core a.active{color:var(--blue);background:linear-gradient(135deg,rgba(109,230,255,.24),rgba(34,174,234,.12));border-color:var(--line);box-shadow:0 10px 22px rgba(34,174,234,.10)}.head-actions{display:flex;align-items:center;gap:12px;white-space:nowrap}.overview-btn,.close-btn,.menu-btn{border:0;background:transparent;font:inherit;cursor:pointer}.overview-btn{color:var(--deep);font-weight:800;border:1px solid var(--line);border-radius:999px;padding:9px 16px;background:#fff}.overview-btn:hover{color:var(--blue);box-shadow:var(--shadow)}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 24px;border-radius:999px;background:var(--btn);color:#fff;font-weight:900;box-shadow:0 14px 26px rgba(34,174,234,.24);transition:.25s;white-space:nowrap}.main-btn:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(34,174,234,.30)}.site-main{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:28px 0 48px}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:900;letter-spacing:.02em}h1,h2,h3,.section-title{color:var(--blue);line-height:1.24;margin:0 0 14px}h1{font-size:clamp(34px,5vw,58px)}h2{font-size:clamp(24px,3vw,34px)}h3{font-size:20px}p{margin:0 0 14px;color:var(--muted)}.text-link{color:var(--blue);font-weight:900}.text-link:hover{text-decoration:underline}
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.panel-mask,.drawer-mask{position:fixed;inset:0;background:rgba(11,61,92,.30);opacity:0;visibility:hidden;transition:.25s;z-index:9998}.panel-mask.show,.drawer-mask.show{opacity:1;visibility:visible}.category-panel{position:fixed;top:0;right:-420px;width:min(400px,88vw);height:100vh;background:#fff;box-shadow:0 18px 48px rgba(34,174,234,.16);z-index:10000;transition:.28s;padding:24px;overflow-y:auto}.category-panel.show{right:0}.panel-top,.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.panel-top strong{color:var(--blue);font-size:24px}.close-btn{color:var(--deep);border:1px solid var(--line);background:var(--soft2);border-radius:999px;padding:8px 14px;font-weight:800}.panel-group{margin-bottom:22px}.panel-group h3{font-size:17px;margin-bottom:10px}.panel-group a{display:block;padding:12px 14px;border-radius:18px;border:1px solid transparent}.panel-group a:hover,.panel-group a.active{border-color:var(--line);background:var(--soft2)}.panel-group span{display:block;color:var(--text);font-weight:900}.panel-group em{display:block;color:var(--muted);font-size:13px;font-style:normal}.mobile-head,.mobile-drawer,.mobile-quick{display:none}
.site-footer{background:var(--footer);color:#EAF8FF;margin-top:40px}.footer-inner{width:min(1180px,calc(100% - 32px));margin:auto;display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:28px;padding:42px 0}.footer-brand img{width:156px;max-height:50px;object-fit:contain;margin-bottom:14px}.footer-brand p,.footer-remind{color:#EAF8FF}.footer-links h3{color:#fff;margin-bottom:10px}.footer-links a{display:block;color:#EAF8FF;margin:8px 0}.footer-links a:hover{color:#6DE6FF}.footer-bottom{border-top:1px solid rgba(234,248,255,.18);text-align:center;color:#EAF8FF;padding:16px;font-size:14px}
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