:root {
  --bg: #f6f0e4;
  --ink: #18282d;
  --muted: #627177;
  --teal: #0f6671;
  --teal-dark: #0c3c43;
  --gold: #d9a72e;
  --paper: #fffaf0;
  --line: rgba(24, 40, 45, .14);
  --shadow: 0 24px 80px rgba(15, 60, 67, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
}

a { color: inherit; }

.hero {
  min-height: 96vh;
  background:
    radial-gradient(circle at 72% 38%, rgba(217, 167, 46, .24), transparent 32%),
    radial-gradient(circle at 18% 18%, rgba(90, 179, 184, .22), transparent 28%),
    linear-gradient(135deg, #092f36 0%, #124f58 44%, #0a2026 100%);
  color: #fff6db;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -18% auto;
  width: 48vw;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.18);
  background: radial-gradient(circle at 35% 35%, rgba(255,255,255,.42), rgba(255,255,255,.06) 48%, transparent 70%);
  filter: blur(.2px);
}

.nav {
  position: relative;
  z-index: 2;
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: flex-end;
  gap: 20px;
  align-items: center;
}

.nav a {
  text-decoration: none;
  color: rgba(255,246,219,.84);
  font-size: 15px;
}

.nav-cta {
  border: 1px solid rgba(255,246,219,.4);
  padding: 8px 14px;
  border-radius: 999px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 80px 24px 100px;
}

.eyebrow {
  color: var(--gold);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 0 0 12px;
}

.hero h1 {
  font-size: clamp(48px, 8vw, 108px);
  line-height: .96;
  margin: 0 0 28px;
  letter-spacing: 0;
}

.lead {
  max-width: 680px;
  font-size: 22px;
  color: rgba(255,246,219,.9);
  margin-bottom: 28px;
}

.hero-actions, .button-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--gold);
  color: #1d2618;
}

.button.ghost {
  border-color: rgba(255,246,219,.42);
  color: #fff6db;
}

.button.large {
  min-height: 56px;
  padding: 0 30px;
  font-size: 18px;
}

.hero-stats {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 900px;
}

.hero-stats div {
  border: 1px solid rgba(255,246,219,.2);
  background: rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 18px;
  backdrop-filter: blur(12px);
}

.hero-stats strong {
  display: block;
  font-size: 30px;
  color: #fff;
}

.hero-stats span {
  color: rgba(255,246,219,.75);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 88px 24px;
}

.section-title {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-title h2,
.cta-card h2 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.12;
  margin: 0;
  color: var(--teal-dark);
}

.check-grid,
.course-grid,
.bonus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.check-grid article,
.course-grid article,
.chapter-card,
.quote-card,
.market-card,
.timeline article,
.bonus-box,
.faq-list details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(15, 60, 67, .06);
}

.check-grid article {
  padding: 20px;
  font-weight: 760;
}

.wide-copy {
  max-width: 880px;
  font-size: 21px;
  margin-top: 30px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: 28px;
  align-items: stretch;
}

.split p {
  font-size: 19px;
}

.quote-card,
.market-card {
  padding: 28px;
  background: #0f3c43;
  color: #fff6db;
}

.quote-card span {
  color: var(--gold);
  font-weight: 900;
}

.quote-card p {
  font-size: 26px;
  line-height: 1.45;
  margin-bottom: 0;
}

.chapter-card {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 24px;
  padding: 30px;
  margin-bottom: 20px;
}

.chapter-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--teal);
  color: #fff6db;
  font-size: 28px;
  font-weight: 900;
}

.chapter-card h3,
.timeline h3,
.course-grid h3,
.bonus-box h3,
.market-card h3 {
  margin: 0 0 12px;
  font-size: 26px;
  color: var(--teal-dark);
}

.quote-card h3,
.market-card h3 { color: #fff6db; }

.chapter-card p {
  font-size: 18px;
}

.role-grid,
.value-stack,
.bonus-grid {
  margin: 20px 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.role-grid span,
.value-stack div,
.bonus-grid span {
  padding: 12px 14px;
  background: rgba(15,102,113,.08);
  border-radius: 8px;
  border: 1px solid rgba(15,102,113,.16);
  font-weight: 750;
}

.takeaway,
.formula {
  border-left: 5px solid var(--gold);
  padding: 14px 18px;
  background: rgba(217,167,46,.12);
  border-radius: 0 8px 8px 0;
}

.formula {
  font-size: 22px;
  font-weight: 900;
  color: var(--teal-dark);
}

.clean-list {
  padding-left: 20px;
  font-size: 18px;
}

.reveal {
  background: #efe5d1;
  max-width: none;
  padding-left: max(24px, calc((100vw - 1120px) / 2 + 24px));
  padding-right: max(24px, calc((100vw - 1120px) / 2 + 24px));
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.timeline article,
.course-grid article {
  padding: 24px;
}

.timeline span {
  color: var(--gold);
  font-weight: 900;
}

.bonus-box {
  margin-top: 24px;
  padding: 28px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  padding: 18px 22px;
}

.faq-list summary {
  cursor: pointer;
  font-size: 19px;
  font-weight: 900;
}

.cta-section {
  padding: 96px 24px;
  background:
    radial-gradient(circle at 15% 25%, rgba(217, 167, 46, .22), transparent 28%),
    linear-gradient(135deg, #0a252b, #104e57);
}

.cta-card {
  max-width: 860px;
  margin: 0 auto;
  background: var(--paper);
  border-radius: 12px;
  padding: 42px;
  box-shadow: var(--shadow);
  text-align: center;
}

.cta-card p {
  font-size: 19px;
}

.price {
  margin: 28px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.price span {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 22px;
}

.price strong {
  color: #b36d00;
  font-size: clamp(34px, 6vw, 58px);
}

.guarantee {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  color: var(--teal-dark);
  font-weight: 750;
}

.small {
  font-size: 14px !important;
  color: var(--muted);
}

.footer {
  padding: 28px 24px;
  display: flex;
  justify-content: center;
  gap: 18px;
  color: var(--muted);
}

@media (max-width: 820px) {
  .nav { justify-content: center; gap: 12px; flex-wrap: wrap; }
  .hero-inner { padding-top: 54px; }
  .hero-stats,
  .check-grid,
  .course-grid,
  .timeline,
  .split,
  .role-grid,
  .value-stack,
  .bonus-grid {
    grid-template-columns: 1fr;
  }
  .chapter-card {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 64px 20px;
  }
  .cta-card {
    padding: 30px 20px;
  }
}

.disabled-button {
  cursor: default;
  pointer-events: none;
}

.app-screenshots {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.app-screenshots figure {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 16px 44px rgba(15, 60, 67, .10);
}

.app-screenshots img {
  width: 100%;
  display: block;
  border-radius: 6px;
  border: 1px solid rgba(24, 40, 45, .10);
}

.app-screenshots figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

@media (max-width: 820px) {
  .app-screenshots {
    grid-template-columns: 1fr;
  }
}

.screenshot-placeholder {
  min-height: 260px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  border: 1px dashed rgba(15, 102, 113, .35);
  background: linear-gradient(135deg, rgba(15,102,113,.08), rgba(217,167,46,.10));
  color: var(--teal-dark);
  font-weight: 900;
}