.selection-page{--selection-blue:#1258a2;--selection-ink:#18364c;color:var(--selection-ink);background:#f4f6f8;font-family:"Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7}
.selection-container{width:min(1440px,calc(100% - 96px));margin-inline:auto}
.selection-hero{padding:64px 0 58px;background:linear-gradient(90deg,rgba(6,28,48,.96),rgba(6,28,48,.65)),url('/assets/materials/engineering-design.png') center 48%/cover;color:#fff}
.selection-hero h1{font-size:clamp(30px,3vw,48px);font-weight:600;line-height:1.3;margin:14px 0 18px;letter-spacing:.01em}
.selection-hero p:last-child{max-width:760px;color:#d3dfeb;font-size:17px;line-height:1.8}
.selection-breadcrumb{color:#c2d3e4;font-size:13px;text-decoration:none}
.selection-eyebrow{font-size:11px;letter-spacing:.16em;font-weight:600;margin:26px 0 0}
.selection-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:52px;align-items:start;padding-block:44px 80px}
.selection-aside{position:sticky;top:110px}.selection-aside .selection-eyebrow{color:#748596;margin:0 0 18px}
.selection-aside nav{display:grid;gap:0}.selection-aside nav a{display:flex;gap:18px;align-items:center;padding:15px 0;border-bottom:1px solid #d8e1e8;color:inherit;text-decoration:none;font-weight:500}
.selection-aside nav span{font-size:12px;color:#6d8cac}.selection-aside nav a:hover{color:var(--selection-blue)}
.selection-help{border-inline-start:3px solid #1258a2;padding-inline-start:18px;margin-top:40px}.selection-help h2{font-size:17px;line-height:1.6;margin:0 0 10px}.selection-help p{font-size:13px;color:#647789}.selection-help a{font-size:15px;color:#1258a2;text-decoration:none}
.selection-note{margin:0 0 24px;color:#607487;font-size:14px}
.selection-page fieldset{min-width:0;border:1px solid #dfe6ed;background:#fff;padding:28px 32px 32px;margin:0 0 28px;scroll-margin-top:115px}
.selection-page legend{font-size:21px;font-weight:600;padding:0 12px;color:#18364c}.selection-page legend span{font-size:13px;color:#1258a2;margin-inline-end:15px;font-weight:400}
.selection-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px 24px}.selection-field{min-width:0}.selection-field--wide{grid-column:1/-1}
.selection-field label{display:block;margin-bottom:8px;font-size:14px;font-weight:500;line-height:1.5}.selection-unit{font-size:12px;font-weight:400;color:#61798b;margin-inline-start:4px}
.selection-field input,.selection-field select,.selection-field textarea{box-sizing:border-box;display:block;width:100%;min-width:0;min-height:46px;border:1px solid #cad6e1;border-radius:3px;background:#fafcfd;color:#16354b;padding:10px 12px;font:inherit;line-height:1.6;transition:border-color .15s,box-shadow .15s}
.selection-field textarea{resize:vertical}.selection-field input:focus,.selection-field textarea:focus,.selection-field select:focus{outline:none;border-color:#1258a2;box-shadow:0 0 0 3px #1258a215;background:#fff}
.selection-field small{display:block;font-size:11px;color:#6b7d8c;margin-top:5px}.selection-page button:focus-visible,.selection-page a:focus-visible{outline:2px solid #2284d0;outline-offset:4px}
.selection-submit{padding:26px 32px;background:white;border-top:3px solid #1258a2}.selection-consent{display:flex;gap:12px;align-items:flex-start;font-size:13px}.selection-consent input{margin-top:5px;width:17px;height:17px;flex:none;accent-color:#1258a2}
.selection-private{font-size:12px;color:#708291;margin:8px 0 24px 29px}.selection-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.selection-primary,.selection-secondary{font:inherit;font-size:14px;cursor:pointer;padding:13px 22px;border-radius:2px;min-height:48px}.selection-primary{border:1px solid #1258a2;background:#1258a2;color:#fff}.selection-secondary{border:1px solid #cbd6df;background:#fff;color:#334f65}.selection-primary:disabled{opacity:.6;cursor:wait}.selection-progress{font-size:12px;color:#758b9b;margin-inline-start:auto}
#selection-status{padding:15px;background:#edf4fb;border-inline-start:3px solid #1258a2;margin-top:20px;overflow-wrap:anywhere}#selection-status[data-error="true"]{background:#fff1ed;border-color:#b84327;color:#96331c}
.selection-trap{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;clip-path:inset(50%);clip:rect(0,0,0,0);overflow:hidden;white-space:nowrap}
.selection-entry{box-sizing:border-box;width:min(1440px,calc(100% - 96px));margin:44px auto 72px;padding:36px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;background:#eaf1f8;border-inline-start:4px solid #1258a2;color:#18364c}.selection-entry>div>span{font-size:11px;letter-spacing:.15em;color:#547591}.selection-entry h2{font-size:28px;margin:8px 0 10px;font-weight:600}.selection-entry p{color:#5b7389;margin:0}.selection-entry>a{flex-shrink:0;color:#fff;background:#1258a2;padding:14px 22px;text-decoration:none;font-size:15px}
@media(max-width:1100px){.selection-layout{grid-template-columns:190px minmax(0,1fr);gap:28px}.selection-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.selection-container,.selection-entry{width:calc(100% - 48px)}}
@media(max-width:720px){.selection-hero{padding:34px 0}.selection-hero p:last-child{font-size:14px}.selection-container,.selection-entry{width:calc(100% - 32px)}.selection-layout{display:block;padding-top:24px}.selection-aside{position:static;margin-bottom:24px}.selection-aside nav{grid-template-columns:1fr 1fr;gap:0 16px}.selection-aside nav a{font-size:13px;gap:10px;padding:10px 0}.selection-help,.selection-aside>.selection-eyebrow{display:none}.selection-page fieldset{padding:20px 16px;margin-bottom:22px}.selection-page legend{font-size:19px}.selection-fields{gap:18px 14px}.selection-field input,.selection-field select,.selection-field textarea{font-size:16px}.selection-field label{font-size:13px}.selection-submit{padding:22px 16px}.selection-progress{width:100%;margin:0}.selection-entry{padding:26px;display:block}.selection-entry>a{display:inline-block;margin-top:22px}}
@media(max-width:420px){.selection-fields{grid-template-columns:1fr}.selection-page legend{font-size:18px}}
@media print{body>*:not(.selection-page){display:none!important}.selection-page{background:#fff}.selection-hero{background:#fff;color:#18364c;padding:12px 0}.selection-hero p:last-child{color:#334f65}.selection-container{width:100%}.selection-layout{display:block;padding:0}.selection-aside,.selection-actions,.selection-consent,.selection-private,.selection-trap{display:none!important}.selection-page fieldset{break-inside:avoid;padding:12px;margin-bottom:12px}.selection-fields{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.selection-field label{font-size:10px}.selection-field input,.selection-field textarea,.selection-field select{font-size:11px;padding:4px;min-height:28px}.selection-hero h1{font-size:24px}}
.service-switch{background:#fff;border-bottom:1px solid #e0e7ef;padding:20px 0;position:relative;z-index:2}.service-switch .container{display:flex;gap:8px;flex-wrap:wrap;align-items:stretch}.service-switch a{flex:1;min-width:130px;display:flex;align-items:center;justify-content:center;gap:12px;padding:16px 12px;background:#f2f5f8;color:#234260;text-decoration:none;font-size:15px;font-weight:600;transition:background .2s,color .2s}.service-switch a span{font-size:11px;opacity:.55;font-weight:400}.service-switch a:hover,.service-switch a:focus-visible,.service-switch a[aria-current="page"]{background:#0757a6;color:#fff}.service-switch a:focus-visible{outline:2px solid #00a4cf;outline-offset:3px}@media(max-width:720px){.service-switch{padding:12px 0}.service-switch a{flex-basis:calc(33.333% - 8px);min-width:90px;padding:12px 6px;font-size:13px;gap:5px}}@media print{.service-switch{display:none}}