:root{--bg:#f4f6fa;--card:#fff;--ink:#172033;--muted:#687287;--line:#e4e8f0;--blue:#5366f5;--blue2:#7a86ff;--green:#0b9f74;--red:#d24d57;--amber:#c48016;--shadow:0 18px 50px rgba(33,43,72,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans TC",sans-serif}.topbar{height:74px;position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 max(28px,calc((100vw - 1180px)/2));gap:40px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:inherit}.brand>span{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font:800 20px Manrope}.brand div{display:flex;flex-direction:column}.brand strong{font:800 16px Manrope}.brand small{font-size:10px;color:var(--muted)}nav{display:flex;gap:24px;flex:1}nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:700}.status{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.status i{width:9px;height:9px;border-radius:50%;background:var(--amber)}.status i.ok{background:var(--green)}.status i.error{background:var(--red)}main{max-width:1180px;margin:auto;padding:58px 28px 90px}.hero{display:grid;grid-template-columns:1.45fr .75fr;gap:28px;align-items:stretch}.eyebrow{margin:0 0 10px;color:var(--blue);font:800 12px Manrope;letter-spacing:.14em}.hero h1{font-size:clamp(40px,5.6vw,70px);line-height:1.08;letter-spacing:-.055em;margin:0 0 22px}.lead{max-width:760px;color:var(--muted);font-size:17px;line-height:1.9}.hero-actions,.input-actions{display:flex;gap:12px;margin-top:28px}.primary,.secondary{border:0;border-radius:12px;padding:13px 20px;font:700 14px inherit;text-decoration:none;cursor:pointer}.primary{background:var(--blue);color:#fff}.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.hero-card{background:linear-gradient(145deg,#202b49,#101728);color:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}.hero-card>span{color:#aeb8d2}.hero-card>strong{font:800 58px Manrope;margin:8px 0}.hero-card p{color:#c4cce0;line-height:1.7}.asof{border-top:1px solid rgba(255,255,255,.12);margin-top:16px;padding-top:16px;color:#aeb8d2}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:34px 0}.cards article,.metric{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:21px}.cards span,.metric span{font-size:13px;color:var(--muted)}.cards strong,.metric strong{display:block;font:800 32px Manrope;margin:7px 0}.cards small,.metric small{color:var(--muted)}.panel{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:30px;margin-top:24px;box-shadow:var(--shadow)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.section-head h2,.split h2{font-size:28px;letter-spacing:-.035em;margin:0}.badge{padding:8px 12px;border-radius:999px;background:#eef0ff;color:var(--blue);font-weight:700;font-size:12px}.badge.neutral{background:#f2f3f6;color:var(--muted)}.period-tabs{display:flex;gap:8px;margin:26px 0 18px;overflow:auto}.period-tabs button{border:1px solid var(--line);background:#fff;padding:9px 14px;border-radius:10px;font-weight:700;color:var(--muted);cursor:pointer;white-space:nowrap}.period-tabs button.active{background:var(--ink);color:#fff;border-color:var(--ink)}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric.benchmark{background:#f4f5ff}.table-wrap{overflow:auto;margin-top:20px;border:1px solid var(--line);border-radius:16px}table{width:100%;border-collapse:collapse;min-width:850px}th,td{text-align:right;padding:15px 16px;border-bottom:1px solid var(--line);font-size:14px}th:first-child,td:first-child{text-align:left}th{background:#f8f9fb;color:var(--muted);font-size:12px}tr:last-child td{border-bottom:0}.positive{color:var(--green)}.negative{color:var(--red)}.footnote{color:var(--muted);font-size:13px;line-height:1.8}.split{display:grid;grid-template-columns:1.35fr .65fr;gap:36px}.method-list{margin-top:26px;display:grid;gap:10px}.method-list article{display:flex;gap:18px;border-top:1px solid var(--line);padding:18px 0}.method-list b{font:800 18px Manrope;color:var(--blue)}.method-list strong{font-size:16px}.method-list p{margin:6px 0 0;color:var(--muted);line-height:1.7}.formula-card{background:#151e34;color:#fff;border-radius:20px;padding:28px;display:flex;flex-direction:column;justify-content:center;gap:16px}.formula-card span{color:#9dabcb}.formula-card code{background:rgba(255,255,255,.08);padding:14px;border-radius:10px;font-size:15px}.formula-card p{color:#bdc6dc;line-height:1.7}.input-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.input-grid label{font-size:13px;font-weight:700;color:var(--muted)}input,select{width:100%;margin-top:7px;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fff;color:var(--ink);font:500 14px inherit}.message{margin-top:16px;padding:13px 15px;border-radius:12px;background:#f6f7fa;color:var(--muted);font-size:13px}footer{max-width:1180px;margin:auto;padding:0 28px 40px;display:flex;justify-content:space-between;color:var(--muted);font-size:13px}.toast{position:fixed;right:24px;bottom:24px;background:#172033;color:#fff;padding:12px 18px;border-radius:12px;opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}@media(max-width:900px){nav{display:none}.hero,.split{grid-template-columns:1fr}.cards,.metric-grid{grid-template-columns:repeat(2,1fr)}.input-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.topbar{padding:0 16px}.status span{display:none}main{padding:38px 16px 70px}.hero h1{font-size:40px}.cards,.metric-grid,.input-grid{grid-template-columns:1fr}.panel{padding:21px}.section-head{align-items:flex-start;flex-direction:column}footer{padding:0 16px 28px;display:block}footer span{display:block;margin-top:8px}}