:root{
  --bg:#0f1a18;--bg-2:#132422;--panel:#182d2a;--panel-2:#1d3733;
  --ink:#eef4f1;--muted:#9db3ad;--faint:#7c928c;
  --gold:#c9a24b;--gold-soft:#e3c579;--gold-dark:#a8842f;
  --green:#1f5a50;--green-2:#2b7568;--green-line:#2a4340;
  --line:rgba(201,162,75,.18);--line-soft:rgba(255,255,255,.09);
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --serif:"Noto Serif TC","PMingLiU",serif;
  --sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.78}
a{color:inherit}
.skip{position:absolute;left:-999px;top:0}
.skip:focus{left:1rem;top:1rem;background:#fff;color:#000;padding:.7rem 1rem;z-index:20;border-radius:8px}

/* 頁首 */
.topbar{height:76px;padding:0 max(4vw,24px);display:flex;align-items:center;gap:2rem;
  border-bottom:1px solid var(--line);background:rgba(15,26,24,.9);backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;text-decoration:none;white-space:nowrap;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;
  background:linear-gradient(140deg,var(--gold),var(--gold-dark));color:#12201d;font-family:var(--serif);overflow:hidden}
.brand-mark img{width:100%;height:100%;object-fit:cover;display:block}
.brand small{display:block;font-size:.68rem;font-weight:600;color:var(--muted);letter-spacing:.02em}
nav{display:flex;gap:1.6rem;margin-left:auto}
nav a{text-decoration:none;font-size:.9rem;color:var(--muted)}
nav a:hover,nav a[aria-current]{color:var(--gold-soft)}
.home-link{text-decoration:none;font-size:.85rem;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:.5rem .95rem;white-space:nowrap}
.home-link:hover{color:var(--gold-soft);border-color:var(--gold-dark)}
.print-btn,.button{border:0;border-radius:999px;padding:.72rem 1.15rem;font:inherit;font-weight:700;cursor:pointer}
.print-btn{background:transparent;color:var(--ink);border:1px solid var(--line-soft)}
.print-btn:hover{border-color:var(--gold-dark);color:var(--gold-soft)}

/* Hero */
.hero{min-height:640px;padding:96px max(6vw,28px);display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(340px,.75fr);gap:6vw;align-items:center;
  background:radial-gradient(circle at 80% 12%,rgba(201,162,75,.14),transparent 42%),
  linear-gradient(160deg,#0f1a18 0%,#13221f 60%,#0f1a18 100%)}
.eyebrow,.kicker{color:var(--gold);font-weight:700;letter-spacing:.06em;font-size:.82rem}
.hero h1{font-family:var(--serif);font-size:clamp(2.6rem,4.8vw,4.6rem);line-height:1.2;
  letter-spacing:-.02em;margin:.7rem 0 1.6rem;font-weight:700}
.hero h1 span{color:var(--gold-soft)}
.lede{font-size:1.1rem;color:#c4d3ce;max-width:640px}
.hero-actions{display:flex;gap:.8rem;margin:2rem 0;flex-wrap:wrap}
.button{text-decoration:none;display:inline-block}
.primary{background:linear-gradient(140deg,var(--gold),var(--gold-dark));color:#12201d}
.primary:hover{filter:brightness(1.07)}
.ghost{background:transparent;color:var(--gold-soft);border:1px solid var(--gold-dark)}
.ghost:hover{background:rgba(201,162,75,.08)}
.privacy-note{font-size:.84rem;color:var(--faint);max-width:640px;border-left:2px solid var(--gold-dark);padding-left:.9rem}
.hero-card{background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:24px;
  padding:2rem;box-shadow:var(--shadow)}
.card-label{display:inline-block;background:linear-gradient(140deg,var(--gold),var(--gold-dark));
  color:#12201d;border-radius:999px;padding:.3rem .8rem;font-size:.78rem;font-weight:800}
.question{font-family:var(--serif);font-size:1.5rem;line-height:1.6;margin:1.4rem 0 2rem;color:#f0f5f2}
.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.answer-grid div{border-top:1px solid var(--line-soft);padding-top:.8rem}
.answer-grid span,.answer-grid strong{display:block}
.answer-grid span{font-size:.75rem;color:var(--faint)}
.answer-grid strong{font-size:.95rem;color:var(--gold-soft)}

/* 通用區塊 */
.section{padding:92px max(7vw,30px)}
.section-heading{max-width:760px;margin-bottom:3rem}
.section-heading h2{font-family:var(--serif);font-size:clamp(1.9rem,3.2vw,3rem);line-height:1.3;
  letter-spacing:-.01em;margin:.5rem 0 1rem;font-weight:700}
.section-heading>p:last-child{color:var(--muted);font-size:1.02rem}

.intro{background:var(--bg)}
.definition-grid,.reading-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.definition-grid article,.reading-grid article{padding:1.7rem;border:1px solid var(--line-soft);
  border-radius:16px;background:var(--panel)}
.definition-grid article>span{font-weight:800;color:var(--gold);font-size:.85rem}
.definition-grid h3,.reading-grid h3{margin:.7rem 0 .3rem;color:var(--ink)}
.definition-grid p,.reading-grid p{color:var(--muted);margin:0;font-size:.92rem}

/* 深綠區塊(案例、結論) */
.case-section,.result{background:linear-gradient(160deg,var(--green),#16443c);color:#fff}
.light .kicker{color:var(--gold-soft)}
.light>p:last-child{color:#cfe1db}
.case-layout{display:grid;grid-template-columns:1fr 1fr;gap:5vw;align-items:center}
.site-diagram{height:420px;border-radius:22px;background:#dfe7dd;position:relative;overflow:hidden;
  color:#22302c;box-shadow:var(--shadow)}
.road{position:absolute;background:#c3c8bf;color:#4e5653;display:grid;place-items:center;font-size:.75rem;letter-spacing:.04em}
.road-top{height:62px;left:0;right:0;top:0}
.road-left{width:74px;left:0;top:62px;bottom:66px;writing-mode:vertical-rl}
.road-bottom{height:66px;left:0;right:0;bottom:0}
.parcel{position:absolute;left:110px;right:45px;top:95px;bottom:98px;
  background:linear-gradient(140deg,var(--gold-soft),var(--gold));
  clip-path:polygon(5% 5%,100% 0,92% 91%,16% 100%,0 46%);display:grid;place-content:center;text-align:center;color:#2a2110}
.parcel span{font-family:var(--serif);font-size:2rem;font-weight:800}
.parcel small{font-weight:700}
.site-diagram>p{position:absolute;right:14px;bottom:68px;font-size:.7rem;color:#5c665f}
.facts{margin:0}
.facts div{display:grid;grid-template-columns:120px 1fr;gap:1rem;padding:1rem 0;border-bottom:1px solid rgba(255,255,255,.16)}
.facts dt{color:#b7cfc8}
.facts dd{margin:0;font-weight:700}
.detail-box{margin-top:3rem;border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:1rem 1.2rem}
.detail-box summary,.method-card summary{cursor:pointer;font-weight:800}
.detail-box summary:hover{color:var(--gold-soft)}

/* 流程 timeline */
.journey{background:var(--bg-2)}
.timeline{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:1rem 4rem}
.timeline li{display:grid;grid-template-columns:54px 1fr;gap:1rem;padding:1.3rem 0;border-top:1px solid var(--line-soft)}
.timeline li>span{width:45px;height:45px;border-radius:50%;display:grid;place-items:center;
  background:var(--panel-2);color:var(--gold-soft);font-weight:800;border:1px solid var(--line)}
.timeline h3,.timeline p{margin:0}
.timeline h3{color:var(--ink)}
.timeline p{color:var(--muted);font-size:.92rem}

/* 方法卡 */
.methods{background:var(--bg)}
.method-card{max-width:1060px;margin:0 auto 2rem;background:var(--panel);border:1px solid var(--line-soft);
  border-radius:24px;padding:clamp(1.5rem,4vw,3.2rem);box-shadow:var(--shadow)}
.method-title{display:flex;align-items:center;gap:1rem}
.method-title>span{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold),var(--gold-dark));font-weight:900;font-size:1.2rem;color:#12201d}
.method-title p,.method-title h3{margin:0}
.method-title p{font-size:.75rem;color:var(--faint);letter-spacing:.04em}
.method-title h3{font-family:var(--serif);font-size:1.9rem;color:var(--ink)}
.method-intro{color:var(--muted);max-width:800px}
.formula,.calc-line{display:flex;align-items:center;justify-content:center;gap:1rem;
  background:var(--bg-2);border:1px solid var(--line-soft);border-radius:12px;padding:1rem;margin:2rem 0;font-weight:800}
.formula span,.calc-line span{padding:.35rem .6rem;color:var(--ink)}
.formula b,.calc-line b{color:var(--gold)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
caption{text-align:left;color:var(--faint);font-size:.8rem;margin-bottom:.7rem}
th,td{padding:.85rem;border-bottom:1px solid var(--line-soft);text-align:right;color:var(--ink)}
th:first-child{text-align:left;color:var(--muted)}
.highlight{background:rgba(201,162,75,.12)}
.highlight th,.highlight td{color:var(--gold-soft)}
.method-result{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;
  border-top:2px solid var(--gold-dark);padding-top:1.3rem;margin-top:1.8rem}
.method-result span{color:var(--muted)}
.method-result strong{font-size:2rem;color:var(--gold-soft)}
.method-result small{font-size:.9rem}
.method-card details{margin-top:1.6rem;padding-top:1rem;border-top:1px solid var(--line-soft);color:var(--muted)}
.method-card summary:hover{color:var(--gold-soft)}
.residual-visual{display:flex;height:105px;border-radius:12px;overflow:hidden;margin:2rem 0;color:#fff}
.residual-visual>div{display:flex;flex-direction:column;justify-content:center;padding:1rem}
.gross{width:36%;background:var(--green-2)}
.costs{width:40%;background:#5a6b66}
.land{width:24%;background:linear-gradient(140deg,var(--gold),var(--gold-dark));color:#12201d}
.residual-visual span{font-size:.78rem}
.residual-visual strong{font-size:1.4rem}
.assumptions{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem}
.assumptions div{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:12px;padding:.9rem}
.assumptions span,.assumptions strong{display:block}
.assumptions span{font-size:.72rem;color:var(--faint)}
.assumptions strong{font-size:.92rem;color:var(--ink)}

/* 價格協調 */
.reconcile{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}
.method-pill{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;
  border-radius:16px;padding:1.2rem 1.6rem;min-width:210px}
.method-pill span,.method-pill strong,.method-pill small{display:block}
.method-pill strong{font-size:1.7rem;color:var(--gold-soft)}
.method-pill small{color:#cfe1db}
.plus,.equals{font-size:2rem;color:var(--gold-soft);font-weight:900}
.final-value{background:linear-gradient(140deg,var(--gold-soft),var(--gold));color:#2a2110;
  border-radius:20px;padding:1.5rem 2rem;box-shadow:var(--shadow)}
.final-value span,.final-value small{font-size:.8rem;font-weight:800}
.final-value strong{display:block;font-size:2.2rem;line-height:1.15}
.total{margin:2.2rem auto 0;max-width:780px;text-align:center;border-top:1px solid rgba(255,255,255,.22);padding-top:1.7rem}
.total span,.total strong{display:block}
.total span{color:#cfe1db}
.total strong{font-family:var(--serif);font-size:1.7rem}
.rounding{text-align:center;color:#a9c2bb;font-size:.78rem}

/* 閱讀報告 */
.reading{background:var(--bg-2)}

/* 聲明 */
.disclaimer{background:#0c1513;padding-top:56px;padding-bottom:56px;border-top:1px solid var(--line-soft)}
.disclaimer h2{font-size:1.05rem;color:var(--gold-soft)}
.disclaimer p{font-size:.83rem;color:var(--faint);max-width:1000px}

/* 預約 CTA */
.cta-band{background:linear-gradient(160deg,var(--green),#123c35);padding:80px max(7vw,30px);text-align:center}
.cta-band .kicker{color:var(--gold-soft)}
.cta-band h2{font-family:var(--serif);font-size:clamp(1.7rem,3vw,2.6rem);margin:.6rem auto 1rem;max-width:720px;font-weight:700}
.cta-band p{color:#cfe1db;max-width:640px;margin:0 auto 2rem}
.cta-actions{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}
.cta-meta{margin-top:2.2rem;color:#b7cfc8;font-size:.9rem;display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}
.cta-meta a{color:var(--gold-soft);text-decoration:none}

/* 事務所頁尾 */
.site-footer{background:#0a1210;color:#c8d6d1;padding:3rem max(7vw,30px) 2.4rem;border-top:1px solid var(--line-soft)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;max-width:1100px;margin:0 auto}
.foot-brand{font-family:var(--serif);font-size:1.15rem;color:var(--ink);margin:0 0 .6rem}
.foot-col p,.foot-col a{margin:.3rem 0;font-size:.87rem;color:var(--muted);text-decoration:none;display:block}
.foot-col a:hover{color:var(--gold-soft)}
.foot-col h4{font-size:.8rem;color:var(--gold);margin:0 0 .6rem;font-weight:700;letter-spacing:.02em}
.foot-bottom{max-width:1100px;margin:2rem auto 0;padding-top:1.4rem;border-top:1px solid var(--line-soft);
  font-size:.8rem;color:var(--faint);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.foot-bottom a{color:var(--muted);text-decoration:none}
.foot-bottom a:hover{color:var(--gold-soft)}

.js-ready details:not([open])>*:not(summary){display:none}

@media(max-width:900px){
  nav{display:none}
  .hero{grid-template-columns:1fr;padding-top:70px}
  .definition-grid,.reading-grid{grid-template-columns:1fr 1fr}
  .case-layout{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .assumptions{grid-template-columns:1fr 1fr}
  .residual-visual{height:auto;flex-direction:column}
  .residual-visual>div{width:100%}
  .formula,.calc-line{flex-wrap:wrap}
  .method-result{align-items:flex-start;flex-direction:column}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .topbar{height:64px;gap:1rem}
  .print-btn{display:none}
  .brand{font-size:.85rem}
  .hero{padding:60px 22px}
  .hero h1{font-size:2.4rem}
  .section{padding:64px 22px}
  .definition-grid,.reading-grid{grid-template-columns:1fr}
  .answer-grid{grid-template-columns:1fr}
  .site-diagram{height:330px}
  .parcel{left:88px;right:30px}
  .facts div{grid-template-columns:95px 1fr}
  .assumptions{grid-template-columns:1fr}
  .reconcile{align-items:stretch;flex-direction:column}
  .plus,.equals{text-align:center}
  .method-pill{min-width:0}
  .total strong{font-size:1.3rem}
  .foot-grid{grid-template-columns:1fr}
  .cta-meta{flex-direction:column;gap:.5rem}
}
@media print{
  .topbar,.hero-actions,.cta-band,.site-footer{display:none}
  body{background:#fff;color:#111}
  .hero{min-height:auto;padding-top:36px;background:#fff}
  .hero h1,.hero h1 span{color:#111}
  .section,.hero{padding:36px}
  .intro,.methods,.journey,.reading,.disclaimer{background:#fff}
  .definition-grid article,.reading-grid article,.method-card{background:#fff;border:1px solid #ccc;box-shadow:none;color:#111}
  .case-section,.result{background:#fff;color:#111}
  .light .kicker{color:var(--gold-dark)}
  .light>p:last-child,.rounding,.total span{color:#555}
  .method-title h3,.section-heading h2,.hero .question{color:#111}
  .method-result strong,.final-value strong{color:#a8842f}
  .case-section,.method-card,.result{break-inside:avoid}
  .method-card details{display:none}
  @page{size:A4;margin:14mm}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}