/* Vicauria 公開試算頁共用樣式（不需登入的頁面） */
:root{
  --navy:#16323F; --teal:#2E7391; --teal-deep:#1F5C73; --teal-tint:#E6F0F2;
  --warm:#C97B3D; --warm-deep:#A85F27; --warm-tint:#FBEFE2;
  --ink:#182226; --ink-soft:#5B6B70; --paper:#F5F7F6; --card:#FFFFFF; --line:#E1E7E7;
  --grey:#7B8794;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;overflow-x:hidden;}
body{background:var(--paper);color:var(--ink);font-family:"Noto Sans TC",sans-serif;line-height:1.75;}
h1,h2,h3{font-family:"Noto Serif TC",serif;margin:0;color:var(--navy);}
a{color:var(--teal-deep);}
.wrap{max-width:980px;margin:0 auto;padding:0 20px;}

.topbar{position:sticky;top:0;z-index:20;background:rgba(245,247,246,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px;gap:12px;}
.logo{font-family:"Roboto Mono",monospace;font-size:13px;letter-spacing:.2em;color:var(--teal-deep);font-weight:700;display:flex;align-items:center;gap:8px;text-decoration:none;}
.logo img{height:22px;width:auto;}
.nav-cta{font-size:13.5px;font-weight:700;color:#fff;background:var(--navy);text-decoration:none;padding:9px 18px;border-radius:24px;white-space:nowrap;}
.nav-cta:hover{background:var(--teal-deep);}

.hero{padding:40px 0 20px;}
.eyebrow{font-family:"Roboto Mono",monospace;font-size:12px;letter-spacing:.16em;color:var(--warm-deep);font-weight:600;margin-bottom:10px;}
.hero h1{font-size:clamp(26px,5.4vw,40px);line-height:1.3;font-weight:900;}
.hero .lead{margin:14px 0 0;color:var(--ink-soft);font-size:16px;max-width:640px;}
.switch{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;}
.switch a{font-size:14px;font-weight:600;padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:#fff;color:var(--ink-soft);text-decoration:none;}
.switch a[aria-current="page"]{background:var(--navy);border-color:var(--navy);color:#fff;}

.calc{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:20px;margin:20px 0;}
@media (max-width:760px){.calc{grid-template-columns:1fr;}}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;}
.card h2{font-size:18px;margin-bottom:14px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:5px;color:var(--ink);}
.field .hint{font-size:12.5px;color:var(--ink-soft);margin-top:4px;}
.inp{display:flex;align-items:center;border:1.5px solid #CBD5D6;border-radius:10px;background:#fff;overflow:hidden;}
.inp:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(46,115,145,.18);}
.inp input{flex:1;min-width:0;border:0;outline:0;padding:12px 12px;font:inherit;font-size:17px;background:transparent;color:var(--ink);font-family:"Roboto Mono",monospace;}
.inp .u{padding:0 12px;color:var(--ink-soft);font-size:14px;white-space:nowrap;}
.err{color:#B3402A;font-size:13px;min-height:18px;margin-top:2px;}

.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px;}
.stat{background:var(--paper);border-radius:12px;padding:14px;}
.stat .k{font-size:12.5px;color:var(--ink-soft);}
.stat .v{font-family:"Roboto Mono",monospace;font-size:20px;font-weight:600;color:var(--navy);margin-top:2px;overflow-wrap:anywhere;}
.stat.big{grid-column:1/-1;background:var(--teal-tint);}
.stat.big .v{font-size:28px;color:var(--teal-deep);}
.stat.warm{background:var(--warm-tint);}
.stat.warm .v{color:var(--warm-deep);}
.sub{font-size:13px;color:var(--ink-soft);}

.chart-card{margin:0 0 20px;}
.chart-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13.5px;margin-bottom:8px;}
.chart-legend i{display:inline-block;width:18px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px;}
.chart-wrap{position:relative;width:100%;}
.chart-wrap svg{display:block;width:100%;height:auto;touch-action:pan-y;}
.tip{position:absolute;pointer-events:none;background:var(--navy);color:#fff;font-size:12.5px;line-height:1.5;padding:8px 10px;border-radius:8px;display:none;white-space:nowrap;z-index:5;}
.tip b{font-weight:700;}

table.tbl{width:100%;border-collapse:collapse;font-size:14px;}
.tbl th,.tbl td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:right;}
.tbl th:first-child,.tbl td:first-child{text-align:left;}
.tbl th{font-size:12.5px;color:var(--ink-soft);font-weight:600;}
.tbl td{font-family:"Roboto Mono",monospace;}
.tbl-scroll{overflow-x:auto;}

.article{margin:28px 0;}
.article h2{font-size:22px;margin-bottom:10px;}
.article h3{font-size:17px;margin:18px 0 6px;}
.article p{margin:8px 0;}
.formula{background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:8px;padding:12px 16px;font-family:"Roboto Mono",monospace;font-size:14px;overflow-x:auto;margin:10px 0;}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:8px;}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);}
.faq p{margin:8px 0 2px;color:var(--ink);}

.notice{background:var(--warm-tint);border:1px solid #F0D9BF;border-radius:12px;padding:14px 16px;font-size:13.5px;color:#6B4318;margin:20px 0;}

.cta-box{background:var(--navy);color:#fff;border-radius:18px;padding:30px 24px;margin:30px 0;text-align:center;}
.cta-box h2{color:#fff;font-size:22px;}
.cta-box p{color:#C9D8DD;margin:10px 0 18px;}
.cta{display:inline-block;background:var(--warm);color:#fff;padding:14px 30px;border-radius:30px;font-size:16px;font-weight:700;text-decoration:none;}
.cta:hover{background:var(--warm-deep);}

footer{padding:26px 0 40px;color:var(--ink-soft);font-size:13px;text-align:center;}
footer a{margin:0 8px;}

:focus-visible{outline:3px solid rgba(46,115,145,.55);outline-offset:2px;}