:root{--bg:#f3f3fa;--surface:#fff;--input:#f6f6fc;--ink:#25243e;--muted:#606079;--line:#dedfeb;--accent:#7139c7;--soft:#eee6fa;--green:#218375;--orange:#a6631b;--red:#b64f62;color-scheme:light}
html.dark{--bg:#090b19;--surface:#14172b;--input:#1b1e35;--ink:#f3f1fc;--muted:#b3b2c9;--line:#2d3049;--accent:#b291ef;--soft:#28213f;--green:#81d1bd;--orange:#e5b77b;--red:#ec9faf;color-scheme:dark}
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var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-size:20px}main{max-width:1380px;margin:auto;padding:6px 30px 25px}.intro{display:flex;justify-content:space-between;align-items:center;gap:25px;margin:12px 0 28px}.eyebrow{font-size:11px;letter-spacing:1.5px;color:var(--accent);font-weight:650}.intro h1{font-size:38px;letter-spacing:-1.3px;line-height:1.2;margin:10px 0;font-weight:600}.intro h1 span{color:var(--accent)}.intro p{margin:0;color:var(--muted);font-size:16px}.source-link{border:1px solid var(--line);padding:9px 13px;border-radius:10px;white-space:nowrap;font-size:13px}.calculator-layout{display:grid;grid-template-columns:minmax(360px,.82fr) minmax(490px,1.3fr);align-items:start;gap:25px}.panel{border:1px solid var(--line);background:var(--surface);border-radius:18px;box-shadow:0 10px 32px #00000012;min-width:0}.input-panel{padding:25px}.section-heading{display:flex;gap:12px;align-items:center;margin:0 0 21px}.section-heading h2{font-size:21px;font-weight:550;margin:0;line-height:1.3;letter-spacing:-.35px}.section-heading p{font-size:13px;color:var(--muted);margin:4px 0 0}.step-number{display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--soft);color:var(--accent);border-radius:11px;width:37px;height:37px;font-weight:650;flex-shrink:0}.type-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:25px}.type-tabs button{display:flex;align-items:center;flex-direction:column;justify-content:center;gap:3px;font-size:13px;border:1px solid var(--line);border-radius:11px;background:var(--input);color:var(--muted);padding:12px 5px;min-width:0}.type-tabs button>span{font-size:20px}.type-tabs button>small{font-size:11px}.type-tabs button.active{background:linear-gradient(120deg,#8850d9,#6832bd);color:#fff;border-color:#9b6bd8}.dates-grid,.fields-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{min-width:0}.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.field label span{font-size:12px;color:var(--muted);font-weight:400;margin-left:4px}input,select{width:100%;min-width:0;border:1px solid var(--line);border-radius:9px;background:var(--input);color:var(--ink);padding:10px 11px;font-size:16px;min-height:46px}input[aria-invalid="true"]{border-color:var(--red)}input::placeholder{color:var(--muted);opacity:.65}.field small{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:8px}.duration-preview{font-size:13px;font-variant-numeric:tabular-nums;color:var(--accent);background:var(--soft);border:1px solid var(--line);padding:10px 12px;border-radius:9px;margin:17px 0 22px}.goods-panel{border-top:1px solid var(--line);padding-top:20px;margin-bottom:22px}.primary-button{width:100%;display:flex;justify-content:space-between;gap:10px;border:1px solid #a77aea77;background:linear-gradient(120deg,#955ce8,#713bc7);color:#fff;border-radius:11px;font-weight:600;padding:13px 16px;font-size:16px}.primary-button:hover{filter:brightness(1.1)}.form-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:12px}.form-actions span{font-size:10px;color:var(--muted)}.form-actions button,.text-button{padding:3px 0;background:none;border:0;color:var(--accent);font-size:12px}.counting-note{border-top:1px solid var(--line);margin-top:21px;padding-top:13px;font-size:12px;color:var(--muted)}summary{cursor:pointer}.counting-note summary{color:var(--ink);font-size:13px}.scope{font-size:11px;line-height:1.6;color:var(--muted);margin:15px 0 0}.error{padding:10px 12px;background:color-mix(in srgb,var(--red) 12%,transparent);border:1px solid var(--red);border-radius:8px;color:var(--red);font-size:14px}.result-column{min-width:0}.result-heading{margin:4px 0 17px}.empty-result{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:480px;padding:35px;text-align:center;border-style:dashed}.empty-symbol{font-size:54px;font-weight:300;color:var(--accent);background:var(--soft);border-radius:24px;width:94px;height:94px;display:flex;align-items:center;justify-content:center;margin-bottom:22px}.empty-result h3{font-size:22px;font-weight:550;margin:0 0 10px}.empty-result p{color:var(--muted);font-size:15px;max-width:360px;margin:0}.method-preview{display:flex;flex-direction:column;gap:12px;margin-top:25px;text-align:left;font-size:14px;color:var(--muted)}.method-preview b{color:var(--accent);margin-right:12px;font-weight:500}.result-panel{overflow:hidden}.total-banner{padding:23px 25px;background:linear-gradient(120deg,var(--soft),var(--surface));display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}#total-value{display:block;font-size:36px;font-weight:600;letter-spacing:-1px;line-height:1.3;margin:7px 0;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.total-banner p{font-size:13px;color:var(--muted);margin:0}.total-icon{color:var(--accent);font-size:49px;font-weight:300;margin-right:9px}.result-body{padding:20px 25px}.timeline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.phase{padding:10px 11px;border-radius:9px;border:1px solid var(--line);border-top:3px solid;min-width:0}.phase>span{font-size:11px;display:block}.phase strong{font-size:19px;font-weight:600;display:block;margin:3px 0}.phase small{font-size:10px;color:var(--muted);display:block}.free{color:var(--green)}.middle{color:var(--orange)}.late{color:var(--red)}.franchise-note{font-size:12px;color:var(--muted);line-height:1.6;margin:12px 0 20px}.franchise-note 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span{display:block;font-size:12px;line-height:1.7;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:2px}.formula-row>b{font-size:15px;font-weight:600;white-space:nowrap;font-variant-numeric:tabular-nums}.fixed{color:var(--accent)}.line-total{display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:11px}.line-total>span{font-size:12px;color:var(--muted)}.line-total>strong{font-size:17px;white-space:nowrap}.payer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}.payer-grid>div{border:1px solid var(--line);border-radius:9px;padding:12px}.payer-grid span{font-size:12px;display:block;color:var(--muted)}.payer-grid strong{font-size:20px;display:block;margin:4px 0;font-weight:550;overflow-wrap:anywhere}.payer-grid small{font-size:10px;color:var(--accent)}.sum-check{font-size:11px;color:var(--muted);margin:10px 0 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22px}.tariff-panel>summary{font-size:15px;font-weight:550}.tariff-panel>summary>span{font-size:12px;font-weight:400;color:var(--muted);margin-left:12px}.table-scroll{overflow:auto;margin-top:17px}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}caption{text-align:left;font-size:12px;color:var(--muted);padding-bottom:12px}th,td{border-bottom:1px solid var(--line);padding:10px 12px}thead th{font-size:12px;font-weight:550;color:var(--muted)}tbody th{font-weight:500}td{font-variant-numeric:tabular-nums;white-space:nowrap}.reference-note{font-size:12px;color:var(--muted);line-height:1.7;margin-bottom:0}.reference-note a{display:block;margin-top:5px}footer{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);margin-top:23px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1100px){.calculator-layout{grid-template-columns:minmax(330px,.8fr) minmax(450px,1.2fr);gap:18px}.input-panel{padding:20px}.dates-grid{grid-template-columns:1fr;gap:14px}.dates-grid .field small{font-size:11px}.type-tabs button{font-size:12px}.result-body{padding:18px}.total-banner{padding:20px}main,.topbar{padding-left:22px;padding-right:22px}.intro h1{font-size:34px}}
@media(max-width:950px){.calculator-layout{grid-template-columns:minmax(0,1fr)}.dates-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.input-panel{padding:24px}.result-heading{margin-top:5px}.empty-result{min-height:310px}.type-tabs button{font-size:15px}.intro{align-items:flex-start}.intro h1{font-size:35px}.intro p{font-size:15px}.intro{margin-bottom:23px}.result-body{padding:22px}.total-banner{padding:24px}}
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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.topbar,.intro,.input-panel,.tariff-panel,.what-if,footer,.result-heading{display:none!important}.calculator-layout{display:block}body{background:#fff;color:#111}.panel{box-shadow:none}#result{display:block!important}.line-detail{break-inside:avoid}}