:root{--s2-ink:#0a1628;--s2-blue:#0b5fe0;--s2-cyan:#10b8d6;--s2-line:#dbe5f2;--s2-soft:#f4f8fd;--s2-warn:#fff7e6}
.s2-hero{padding:64px 0 40px;background:linear-gradient(135deg,#07172d 0%,#0b315e 72%,#075c75 100%);color:#fff}
.s2-hero .breadcrumb,.s2-hero .breadcrumb a{color:#c8dbef}.s2-hero h1{font-size:clamp(32px,5vw,54px);line-height:1.14;margin:20px 0 16px;max-width:1000px}.s2-lead{font-size:18px;line-height:1.8;max-width:900px;color:#e5f2ff}.s2-meta{margin-top:18px;font-size:13px;color:#b9cee5}
.s2-main{padding:54px 0 72px}.s2-main .container{max-width:1040px}.s2-answer{padding:22px 24px;margin:0 0 32px;border-left:4px solid var(--s2-cyan);background:#edf8ff;border-radius:8px;font-size:17px;line-height:1.85;color:var(--s2-ink)}
.s2-main h2{font-size:28px;line-height:1.35;margin:46px 0 18px;color:var(--s2-ink)}.s2-main h3{font-size:21px;margin:30px 0 12px;color:#102b4e}.s2-main p,.s2-main li{font-size:16px;line-height:1.9;color:#27384f}.s2-main a{color:#075fc6;text-decoration-thickness:1px;text-underline-offset:3px}.s2-main ul,.s2-main ol{padding-left:24px}
.s2-table-wrap{overflow-x:auto;margin:20px 0 28px;border:1px solid var(--s2-line);border-radius:10px}.s2-table{width:100%;min-width:720px;border-collapse:collapse;background:#fff}.s2-table caption{text-align:left;font-weight:700;padding:14px 16px;background:#eaf3ff}.s2-table th,.s2-table td{padding:13px 15px;border-bottom:1px solid var(--s2-line);text-align:left;vertical-align:top;line-height:1.65}.s2-table th{background:#f4f8fd;color:#12345d}.s2-table tr:last-child td{border-bottom:0}
.s2-formula{margin:20px 0;padding:18px 22px;border-radius:9px;background:#081c35;color:#eaf6ff;font:600 16px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}.s2-note{padding:18px 20px;margin:24px 0;background:var(--s2-warn);border:1px solid #f2d397;border-radius:8px}.s2-note strong{color:#8a4d00}
.s2-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:22px 0}.s2-card{padding:22px;border:1px solid var(--s2-line);border-radius:11px;background:#fff;box-shadow:0 8px 24px rgba(10,35,70,.06)}.s2-card h3{margin-top:0}.s2-card p:last-child{margin-bottom:0}.s2-links{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.s2-links a{display:inline-flex;min-height:42px;align-items:center;padding:9px 13px;border:1px solid #b9d1ef;border-radius:8px;background:#f4f8fd;text-decoration:none}
.s2-cta{margin:42px 0 0;padding:30px;border-radius:14px;background:linear-gradient(135deg,#0a2c56,#006c88);color:#fff}.s2-cta h2{color:#fff;margin:0 0 10px}.s2-cta p{color:#dceeff}.s2-cta .btn{margin-right:10px;margin-top:10px}.s2-boundary{margin-top:28px;padding-top:18px;border-top:1px solid var(--s2-line);font-size:13px!important;color:#637188!important}
.s2-faq details{border:1px solid var(--s2-line);border-radius:9px;margin:10px 0;background:#fff}.s2-faq summary{cursor:pointer;font-weight:700;padding:16px 18px;color:#12345d}.s2-faq details p{margin:0;padding:0 18px 18px}.s2-feature{margin:34px auto;padding:26px;border:1px solid #8fc5ef;border-radius:14px;background:linear-gradient(120deg,#eef8ff,#f7fbff);max-width:1180px}.s2-feature h2{margin:0 0 8px;font-size:27px}.s2-feature p{line-height:1.75}.s2-feature .btn{margin-top:8px}
.s2-cluster{padding:28px 0;background:#eef5fc}.s2-cluster .s2-links{margin:10px 0 0}.s2-category{margin:42px 0}.s2-category h2{font-size:24px}.s2-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.s2-category-grid a{display:block;padding:16px;border:1px solid var(--s2-line);border-radius:9px;background:#fff;text-decoration:none;color:#173b67;font-weight:650;line-height:1.55}
.tco-shell{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start}.tco-panel{padding:24px;border:1px solid var(--s2-line);border-radius:12px;background:#fff}.tco-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tco-field label{display:block;font-weight:700;color:#173b67;margin-bottom:6px}.tco-field input{width:100%;min-height:44px;padding:10px 12px;border:1px solid #9fb5cf;border-radius:7px;font:inherit}.tco-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.tco-actions button,.tco-actions a{min-height:44px;padding:10px 16px;border:0;border-radius:7px;cursor:pointer;font-weight:700}.tco-primary{background:var(--s2-blue);color:#fff}.tco-secondary{background:#e7eff8;color:#173b67}.tco-error{color:#b42318;min-height:24px;margin-top:10px}.tco-result{background:#071c35;color:#fff}.tco-result h2{color:#fff;margin-top:0}.tco-result dl{margin:0}.tco-result div{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid #ffffff24}.tco-result dt{color:#c6d8ea}.tco-result dd{margin:0;font-weight:800}.tco-result .tco-total{font-size:19px;color:#6ee7f3}
@media(max-width:760px){.s2-hero{padding:42px 0 30px}.s2-main{padding:38px 0 84px}.s2-grid,.s2-category-grid,.tco-shell,.tco-fields{grid-template-columns:1fr}.s2-table{min-width:660px}.s2-cta{padding:22px}.s2-feature{margin-left:16px;margin-right:16px}.s2-main h2{font-size:24px}}
@media print{header,.site-header,footer,.site-footer,.m-callbar,.s2-cta,.tco-actions{display:none!important}.s2-hero{background:#fff;color:#000;padding:20px 0}.s2-lead,.s2-meta{color:#333}.s2-main{padding:10px 0}.tco-shell{grid-template-columns:1fr}.tco-panel{break-inside:avoid}}