.knowledge,.content-footer,.doc-page{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.85;box-sizing:border-box}
.knowledge{max-width:1120px;margin:0 auto;padding:60px 36px 44px;scroll-margin-top:24px}.knowledge h1{font-size:clamp(24px,3vw,34px);margin:8px 0 16px;line-height:1.45;letter-spacing:0}.content-kicker{color:#b6f5da;font-size:12px;letter-spacing:2px;margin:0}.knowledge .lead{color:#afbec8;max-width:790px;font-size:15px}.knowledge h2{font-size:21px;margin:32px 0 12px}.knowledge p{color:#afbec8}.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:26px 0}.knowledge-card{display:block;border:1px solid #30433f;border-radius:12px;background:#111e26;padding:24px;min-width:0}.knowledge-card:hover{border-color:#b6f5da;background:#172a2d}.knowledge-card strong{color:#e5f7ef;font-size:18px;display:block;margin:8px 0}.knowledge-card span{color:#b6f5da;font-size:12px}.knowledge-card p{font-size:13px;margin:8px 0 0}.content-footer{border-top:1px solid #263a40;padding:28px 36px 36px;max-width:1120px;margin:0 auto;color:#94a7b4;font-size:12px}.content-footer nav{display:flex;flex-wrap:wrap;gap:12px 24px;margin:12px 0;align-self:auto;font-size:13px}.content-footer a,.doc-page a{color:#b6f5da;text-decoration:underline;text-underline-offset:4px}.content-footer p{margin:0}.help-link{white-space:nowrap;color:#b6f5da}.help-link:hover{text-decoration:underline}
.doc-page{margin:0;background:#080e18;color:#eaf1f5;font-size:16px}.doc-page *{box-sizing:border-box}.doc-header{max-width:1120px;margin:auto;padding:22px 36px;display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid #263a40;align-items:center}.doc-page .doc-brand{font-size:18px;font-weight:700;text-decoration:none}.doc-header nav{display:flex;flex-wrap:wrap;gap:12px 22px;font-size:13px}.doc-page a:hover{color:#e0ffee}.doc-page a:focus-visible{outline:2px solid #b6f5da;outline-offset:5px}.doc-page .doc-main{display:block;min-height:0;max-width:850px;margin:0 auto;padding:44px 36px 64px}.doc-page .breadcrumb{font-size:13px;color:#94a7b4;margin:0 0 24px}.doc-page h1{font-size:clamp(29px,4vw,42px);line-height:1.35;margin:0 0 20px}.doc-page h2{font-size:23px;line-height:1.5;margin:38px 0 12px;color:#e4f6ee}.doc-page h3{font-size:18px;margin:24px 0 8px}.doc-page p,.doc-page li{color:#afbec8}.doc-page .lead{font-size:18px;color:#c8d9dc}.doc-page p{margin:12px 0}.doc-page li{margin:9px 0}.notice,.formula{padding:18px 22px;border-left:3px solid #b6f5da;background:#14272b;color:#c8e3da;border-radius:0 8px 8px 0;margin:26px 0}.formula{overflow-wrap:anywhere}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;padding:14px 12px;border-bottom:1px solid #30433f}th{background:#14272b;color:#b6f5da}td{color:#afbec8}.return-tool{display:inline-block;margin-top:32px;padding:12px 20px;border:1px solid #638d7b;border-radius:8px}.doc-page .content-footer{padding-top:28px}.doc-page .content-footer p{font-size:12px}
@media(max-width:700px){.knowledge{padding:38px 22px 28px}.knowledge-grid{grid-template-columns:1fr;gap:12px}.knowledge-card{padding:20px}.knowledge .lead{font-size:14px}.content-footer{padding:24px 22px}.doc-header{padding:18px 22px;align-items:flex-start;flex-direction:column;gap:12px}.doc-header nav{gap:10px 18px}.doc-page .doc-main{padding:30px 22px 44px}.doc-page{font-size:15px}.doc-page .lead{font-size:16px}.doc-page h2{font-size:21px}.notice,.formula{padding:15px}th,td{padding:11px 8px}.header nav{gap:12px}.header nav .help-link{font-size:11px}}
@media(prefers-reduced-motion:reduce){.doc-page{scroll-behavior:auto}}