@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700&family=Noto+Serif+TC:wght@600;700;900&display=swap');

:root {
  --ink: #082f29;
  --ink-2: #0d3d36;
  --paper: #f7f1e5;
  --paper-2: #fffaf0;
  --line: #d8cbb5;
  --muted: #6d6254;
  --orange: #dc7222;
  --orange-dark: #b95614;
  --pink: #ef6281;
  --white: #fffdf8;
  --shadow: 0 18px 60px rgba(44, 33, 16, .1);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: 'Noto Sans TC', sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: 'Noto Serif TC', serif; letter-spacing: -.035em; }
button, input, textarea { font: inherit; }

.site-header { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; min-height: 78px; padding: 12px max(4vw, 24px); color: var(--white); background: rgba(6, 43, 38, .96); border-bottom: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 18px; }
.brand-mark { font-size: 1.45rem; font-weight: 900; letter-spacing: .08em; color: var(--white); }
.brand-mark span { color: var(--pink); }
.brand-note { padding-left: 18px; font-size: .72rem; letter-spacing: .15em; color: #bfd4cf; border-left: 1px solid rgba(255,255,255,.25); }
.site-nav { display: flex; align-items: center; gap: 28px; font-size: .9rem; }
.site-nav a { color: #dbe9e5; }
.site-nav a:hover { color: #fff; }
.site-nav .nav-cta { padding: 10px 17px; color: var(--ink); background: #f4a34f; border-radius: 999px; font-weight: 700; }
.menu-toggle { display: none; color: #fff; background: transparent; border: 1px solid rgba(255,255,255,.3); border-radius: 8px; padding: 7px 10px; }

.section, .section-dark, .final-cta { padding: 110px max(6vw, 28px); }
.section { background: var(--paper); }
.section-tint { background: #ede5d5; }
.section-dark { color: var(--white); background: var(--ink); }
.hero { min-height: 720px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(350px, .75fr); gap: 8vw; align-items: center; padding-top: 86px; overflow: hidden; position: relative; }
.hero::before { content: ''; position: absolute; right: -13vw; top: -20vw; width: 48vw; height: 48vw; border: 1px solid rgba(244,163,79,.16); border-radius: 50%; box-shadow: 0 0 0 8vw rgba(255,255,255,.018), 0 0 0 16vw rgba(255,255,255,.012); }
.hero-copy, .founder-card { position: relative; z-index: 1; }
.eyebrow { margin-bottom: 18px; color: var(--orange); font-size: .75rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { max-width: 860px; margin-bottom: 28px; font-size: clamp(2.8rem, 5.4vw, 5.8rem); line-height: 1.14; }
.hero h1 em { color: #f6a14b; font-style: normal; }
.hero-lead { max-width: 780px; margin-bottom: 32px; color: #d2dfdc; font-size: clamp(1.02rem, 1.3vw, 1.2rem); }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 12px 22px; border: 1px solid transparent; border-radius: 6px; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #1b211f; background: #f3a04c; }
.button-primary:hover { background: #ffb261; }
.button-ghost { color: #fff; border-color: rgba(255,255,255,.35); }
.button-outline { border-color: var(--ink); color: var(--ink); }
.hero-promises { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 30px 0 0; padding: 0; color: #a9c0ba; font-size: .84rem; list-style: none; }
.hero-promises li::before { content: '✓'; margin-right: 8px; color: #f3a04c; }
.founder-card { overflow: hidden; background: #f9f2e6; color: var(--ink); border: 1px solid rgba(255,255,255,.14); box-shadow: 24px 24px 0 rgba(244,163,79,.13); }
.founder-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center 32%; filter: saturate(.8); }
.founder-card-copy { padding: 26px 28px 30px; }
.founder-card-copy .eyebrow { margin-bottom: 4px; }
.founder-card h2 { margin-bottom: 10px; font-size: 1.8rem; }
.founder-card p { margin-bottom: 16px; font-size: .9rem; }
.credential-row { display: flex; flex-wrap: wrap; gap: 8px; }
.credential-row span { padding: 5px 9px; border: 1px solid var(--line); font-size: .7rem; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); background: #d87328; color: #fff; }
.proof-strip div { display: flex; align-items: center; gap: 15px; padding: 26px 4vw; border-right: 1px solid rgba(255,255,255,.25); }
.proof-strip strong { font-family: 'Noto Serif TC', serif; font-size: 2rem; white-space: nowrap; }
.proof-strip span { font-size: .78rem; line-height: 1.4; }

.section-heading { max-width: 920px; margin-bottom: 54px; }
.section-heading h2 { margin-bottom: 20px; font-size: clamp(2rem, 3.7vw, 3.7rem); line-height: 1.25; }
.section-heading > p:last-child, .section-intro { color: var(--muted); font-size: 1.03rem; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); gap: 7vw; max-width: none; align-items: end; }
.split-heading > p { margin-bottom: 24px; border-left: 2px solid var(--orange); padding-left: 20px; }

.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.problem-card { min-height: 340px; padding: 30px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.18); }
.problem-no { color: var(--orange); font-family: 'Noto Serif TC', serif; font-size: 2.1rem; font-weight: 700; }
.problem-card h3 { margin: 42px 0 14px; font-size: 1.3rem; line-height: 1.45; }
.problem-card p { color: var(--muted); font-size: .9rem; }
.problem-card strong { display: block; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--orange-dark); font-size: .82rem; }

.solution-flow { display: grid; grid-template-columns: 1fr 70px 1fr; align-items: stretch; }
.solution-card { padding: 44px; background: var(--paper-2); border: 1px solid var(--line); box-shadow: var(--shadow); }
.solution-card h3 { margin: 10px 0 12px; font-family: 'Noto Serif TC', serif; font-size: 2rem; }
.solution-card > p { color: var(--muted); }
.solution-label { color: var(--orange-dark); font-size: .72rem; font-weight: 800; letter-spacing: .14em; }
.run-card { background: var(--ink); color: #fff; border-color: var(--ink); }
.run-card > p { color: #bcd0ca; }
.run-card .solution-label { color: #f1a252; }
.flow-connector { position: relative; display: grid; place-items: center; }
.flow-connector::before { content: ''; position: absolute; left: 0; right: 0; height: 1px; background: var(--orange); }
.flow-connector span { position: relative; z-index: 1; padding: 8px 5px; background: #ede5d5; writing-mode: vertical-rl; color: var(--orange-dark); font-size: .72rem; letter-spacing: .2em; }
.check-list { margin: 28px 0; padding: 0; list-style: none; }
.check-list li { padding: 12px 0 12px 25px; border-bottom: 1px solid rgba(109,98,84,.2); position: relative; }
.check-list li::before { content: '＋'; position: absolute; left: 0; color: var(--orange); font-weight: 900; }
.run-card .check-list li { border-color: rgba(255,255,255,.14); }
.ownership-note { margin: 24px 0 0 !important; padding: 16px 18px; color: var(--ink) !important; background: #f2c27f; font-size: .84rem; font-weight: 700; }
.value-chain { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px; margin-top: 38px; padding: 22px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: .85rem; }
.value-chain i { color: var(--orange); font-style: normal; }
.value-chain strong { color: var(--orange-dark); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card { display: flex; flex-direction: column; min-height: 520px; padding: 28px; background: rgba(255,255,255,.38); border: 1px solid var(--line); border-top: 4px solid var(--case); transition: transform .25s ease, box-shadow .25s ease; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.case-logo { display: flex; align-items: center; min-height: 86px; margin-bottom: 22px; padding: 12px 18px; background: #fff; border: 1px solid #e6dfd3; }
.case-logo img { width: 100%; height: 60px; object-fit: contain; }
.dual-logo { gap: 18px; }
.dual-logo img { width: calc(50% - 9px); }
.baixian-logo-set { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(86px, .35fr); gap: 16px; align-items: center; }
.baixian-logo-set .group-logo { width: 100%; height: 52px; object-fit: contain; }
.subbrand-logos { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.subbrand-logos img { width: 42px; height: 42px; object-fit: contain; }
.case-type { margin-bottom: 10px; color: var(--case); font-size: .72rem; font-weight: 800; letter-spacing: .08em; }
.case-card h3 { min-height: 66px; margin-bottom: 14px; font-family: 'Noto Serif TC', serif; font-size: 1.25rem; line-height: 1.5; }
.case-card > p:not(.case-type) { color: var(--muted); font-size: .88rem; }
.metric-list { display: flex; flex-wrap: wrap; gap: 7px; margin: auto 0 22px; padding: 0; list-style: none; }
.metric-list li { padding: 6px 9px; background: #eee4d2; font-size: .73rem; font-weight: 700; }
.case-card > a { color: var(--case); font-size: .84rem; font-weight: 800; }
.case-card > a span { float: right; }

.price-heading .section-intro { color: #bcd0ca; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; padding: 35px 30px; color: var(--ink); background: #f5eee2; border: 1px solid rgba(255,255,255,.25); }
.price-card h3 { margin: 8px 0 12px; font-family: 'Noto Serif TC', serif; font-size: 1.8rem; }
.price-for { min-height: 48px; margin-bottom: 0; color: var(--orange-dark); font-size: .78rem; font-weight: 800; }
.price { margin-bottom: 20px; font-family: 'Noto Serif TC', serif; font-size: 2.45rem; font-weight: 900; line-height: 1; }
.price span, .price small { font-family: 'Noto Sans TC', sans-serif; font-size: .75rem; font-weight: 600; }
.price-outcome { min-height: 82px; padding: 14px; color: var(--ink-2); background: #e8ddcc; font-size: .84rem; font-weight: 700; }
.compact { margin: 15px 0 28px; font-size: .84rem; }
.price-card .button { margin-top: auto; }
.featured-price { transform: translateY(-16px); background: #fff7e8; border: 2px solid #f3a04c; box-shadow: 0 20px 60px rgba(0,0,0,.18); }
.recommended { position: absolute; top: 0; left: 0; right: 0; transform: translateY(-100%); padding: 7px; color: #2d251a; background: #f3a04c; text-align: center; font-size: .72rem; font-weight: 800; }
.pricing-logic { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 35px; border: 1px solid rgba(255,255,255,.25); }
.pricing-logic div { display: flex; flex-direction: column; gap: 5px; padding: 18px 22px; border-right: 1px solid rgba(255,255,255,.2); }
.pricing-logic div:last-child { border-right: 0; }
.pricing-logic span { color: #aac0ba; font-size: .76rem; }
.pricing-logic b { color: #f4a34f; }
.terms { margin: 28px 0 0; color: #9eb5af; font-size: .78rem; text-align: center; }

.process-list { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.process-list li { padding: 32px 24px; border-right: 1px solid var(--line); }
.process-list li:last-child { border-right: 0; }
.process-list span { color: var(--orange); font-family: 'Noto Serif TC', serif; font-size: 2rem; font-weight: 900; }
.process-list h3 { margin: 34px 0 10px; font-size: 1rem; }
.process-list p { color: var(--muted); font-size: .82rem; }

.final-cta { color: #fff; background: linear-gradient(115deg, #b85816, #d77a2d 60%, #ef9b4c); text-align: center; }
.final-cta .eyebrow { color: #ffe1bf; }
.final-cta h2 { max-width: 900px; margin: 0 auto 22px; font-size: clamp(2.2rem, 4vw, 4rem); line-height: 1.3; }
.final-cta > p:not(.eyebrow) { max-width: 680px; margin: 0 auto 34px; color: #fff1df; }
.center { justify-content: center; }
.final-cta .button-primary { background: var(--ink); color: #fff; }

.site-footer { display: grid; grid-template-columns: 1.5fr 1fr .6fr; gap: 30px; padding: 50px max(6vw, 28px); color: #adc0bb; background: #052823; font-size: .78rem; }
.site-footer > div:nth-child(2) { display: flex; flex-direction: column; gap: 7px; }
.site-footer p { margin-bottom: 0; }

/* Case detail page */
.sub-hero { padding: 100px max(6vw, 28px) 70px; color: #fff; background: var(--ink); }
.sub-hero h1 { max-width: 850px; margin-bottom: 18px; font-size: clamp(2.4rem, 5vw, 5rem); line-height: 1.2; }
.sub-hero p { max-width: 760px; color: #bed0cb; }
.case-index { display: flex; flex-wrap: wrap; gap: 9px; padding: 22px max(6vw, 28px); background: #d87428; position: sticky; top: 78px; z-index: 20; }
.case-index a { padding: 6px 12px; color: #fff; border: 1px solid rgba(255,255,255,.45); font-size: .72rem; }
.case-detail { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 6vw; padding: 90px max(6vw, 28px); border-bottom: 1px solid var(--line); scroll-margin-top: 145px; }
.case-detail:nth-child(even) { background: #eee5d5; }
.case-detail-logo { position: sticky; top: 170px; align-self: start; padding: 24px; background: #fff; border-top: 5px solid var(--case); }
.case-detail-logo img { width: 100%; height: 100px; object-fit: contain; }
.baixian-detail-logo .group-logo { height: 72px; margin-bottom: 16px; }
.baixian-detail-logo .subbrand-logos { justify-content: center; padding-top: 14px; border-top: 1px solid #e6dfd3; }
.baixian-detail-logo .subbrand-logos img { width: 66px; height: 66px; }
.case-detail-main h2 { margin-bottom: 12px; font-size: clamp(2rem, 3.5vw, 3.5rem); }
.case-summary { max-width: 850px; color: var(--muted); font-size: 1.05rem; }
.case-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 32px 0; }
.case-panel { padding: 26px; background: rgba(255,255,255,.48); border: 1px solid var(--line); }
.case-panel h3 { margin-bottom: 14px; color: var(--orange-dark); font-size: .9rem; letter-spacing: .08em; }
.case-panel ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: .88rem; }
.case-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.case-metrics div { padding: 18px; color: #fff; background: var(--ink); }
.case-metrics b { display: block; color: #f3a04c; font-family: 'Noto Serif TC', serif; font-size: 1.45rem; }
.case-metrics span { font-size: .74rem; }

/* Diagnosis */
.diagnosis-shell { min-height: calc(100vh - 78px); padding: 70px max(5vw, 24px); background: #eee5d5; }
.diagnosis-wrap { max-width: 920px; margin: 0 auto; }
.diagnosis-intro { text-align: center; }
.diagnosis-intro h1 { margin-bottom: 16px; font-size: clamp(2.3rem, 5vw, 4.5rem); line-height: 1.2; }
.diagnosis-intro > p { max-width: 660px; margin: 0 auto 28px; color: var(--muted); }
.progress-track { height: 5px; margin: 36px 0 12px; background: #d5c8b3; }
.progress-bar { width: 0; height: 100%; background: var(--orange); transition: width .3s ease; }
.progress-label { color: var(--muted); font-size: .75rem; text-align: right; }
.question-card { display: none; padding: 38px; background: var(--paper-2); border: 1px solid var(--line); box-shadow: var(--shadow); }
.question-card.active { display: block; animation: fadeUp .35s ease; }
.question-no { color: var(--orange); font-size: .72rem; font-weight: 800; letter-spacing: .12em; }
.question-card h2 { margin-bottom: 22px; font-size: clamp(1.5rem, 3vw, 2.4rem); }
.answer-list { display: grid; gap: 10px; }
.answer { display: flex; gap: 12px; align-items: flex-start; padding: 15px; border: 1px solid var(--line); cursor: pointer; transition: border .2s, background .2s; }
.answer:hover { background: #f3e9d8; }
.answer:has(input:checked) { border-color: var(--orange); background: #f8e5ce; }
.answer input { margin-top: 7px; accent-color: var(--orange); }
.question-actions { display: flex; justify-content: space-between; gap: 14px; margin-top: 28px; }
.question-actions button { padding: 10px 18px; border: 1px solid var(--ink); background: transparent; cursor: pointer; }
.question-actions .next { color: #fff; background: var(--ink); }
.result-panel { display: none; padding: 42px; background: var(--ink); color: #fff; box-shadow: var(--shadow); }
.result-panel.active { display: block; }
.result-panel h2 { margin-bottom: 10px; font-size: clamp(2rem, 4vw, 3.3rem); }
.result-kicker { color: #f3a04c; font-size: .76rem; font-weight: 800; letter-spacing: .12em; }
.result-lead { color: #c4d4d0; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 28px 0; }
.result-card { padding: 22px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.15); }
.result-card h3 { color: #f3a04c; font-size: .9rem; }
.result-card p { margin-bottom: 0; color: #d5e0dd; font-size: .86rem; }
.result-panel .button-ghost { cursor: pointer; background: transparent; }
.restart { display: inline-block; margin-top: 20px; color: #afc3be; border: 0; background: transparent; text-decoration: underline; cursor: pointer; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

@media (max-width: 1050px) {
  .site-nav { gap: 16px; }
  .hero { grid-template-columns: 1fr .8fr; gap: 5vw; }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { gap: 12px; }
}

@media (max-width: 760px) {
  .site-header { min-height: 68px; }
  .brand-note { display: none; }
  .menu-toggle { display: block; }
  .site-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 22px 28px; background: #072f29; flex-direction: column; align-items: stretch; }
  .site-nav.open { display: flex; }
  .site-nav .nav-cta { text-align: center; }
  .section, .section-dark, .final-cta { padding: 72px 22px; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 60px; }
  .hero h1 { font-size: 2.65rem; }
  .founder-card { margin-top: 20px; box-shadow: 12px 12px 0 rgba(244,163,79,.13); }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .split-heading { grid-template-columns: 1fr; gap: 8px; }
  .problem-grid, .case-grid, .pricing-grid, .pricing-logic, .process-list { grid-template-columns: 1fr; }
  .problem-card { min-height: 0; }
  .problem-card h3 { margin-top: 20px; }
  .solution-flow { grid-template-columns: 1fr; }
  .solution-card { padding: 30px 24px; }
  .flow-connector { height: 54px; }
  .flow-connector::before { top: 0; bottom: 0; left: 50%; right: auto; width: 1px; height: auto; }
  .flow-connector span { writing-mode: initial; padding: 6px 10px; }
  .case-card { min-height: 0; }
  .featured-price { margin-top: 32px; transform: none; }
  .pricing-logic div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .process-list li { display: grid; grid-template-columns: 55px 1fr; gap: 12px; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-list h3 { margin-top: 5px; }
  .site-footer { grid-template-columns: 1fr; }
  .case-index { top: 68px; overflow-x: auto; flex-wrap: nowrap; }
  .case-index a { white-space: nowrap; }
  .case-detail { grid-template-columns: 1fr; padding: 65px 22px; }
  .case-detail-logo { position: static; max-width: 260px; }
  .case-columns, .case-metrics, .result-grid { grid-template-columns: 1fr; }
  .diagnosis-shell { padding: 50px 18px; }
  .question-card, .result-panel { padding: 28px 22px; }
}