@import url("https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700&family=Space+Grotesk:wght@500;700&display=swap");

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --ink: #071b31;
  --ink-soft: #26425f;
  --line: #d4dbe4;
  --brand: #0f2f4f;
  --brand-soft: #294a6d;
  --accent: #1f6f8f;
  --radius: 18px;
  --shadow: 0 16px 42px rgba(8, 19, 34, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 0% -30%, #ffffff 0%, var(--bg) 44%, #edf1f4 100%);
  color: var(--ink);
  font-family: "Sora", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  min-height: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1180px, 92vw);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(244, 245, 247, 0.78);
  border-bottom: 1px solid rgba(212, 219, 228, 0.8);
}

.nav-wrap {
  height: 82px;
  display: grid;
  grid-template-columns: 220px 1fr auto;
  align-items: center;
  gap: 20px;
}

.brand img {
  height: 34px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
}

.nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  background: #e8edf2;
  color: var(--ink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-nav {
  display: none;
}

.mobile-link {
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid #d2dae4;
  border-radius: 999px;
  color: #355474;
  font-size: 13px;
}

.mobile-link.active {
  background: #eaf1f7;
  color: var(--ink);
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Space Grotesk", "Sora", sans-serif;
  font-weight: 700;
  border-radius: 999px;
  padding: 11px 17px;
  font-size: 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(115deg, var(--brand) 0%, var(--accent) 100%);
  color: white;
  box-shadow: 0 10px 24px rgba(15, 47, 79, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero {
  padding: 52px 0 36px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 42px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid #cfd8e2;
  background: #f2f6f9;
  color: #2f4e6d;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  font-family: "Space Grotesk", "Sora", sans-serif;
  line-height: 1.08;
  margin: 16px 0 18px;
  font-size: clamp(2rem, 4.7vw, 3.8rem);
  letter-spacing: -0.02em;
}

h2 {
  font-family: "Space Grotesk", "Sora", sans-serif;
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.2vw, 2.2rem);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

p {
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0 0 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-visual {
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.95), rgba(239, 243, 247, 0.9));
  border: 1px solid rgba(214, 221, 229, 0.8);
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  height: auto;
  display: block;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.metric-row div {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.72);
}

.metric-row strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.metric-row span {
  color: #426081;
  font-size: 0.84rem;
}

.trust-band,
.evidence,
.page-shell {
  padding: 24px 0 44px;
}

.cards-3,
.cards-2 {
  display: grid;
  gap: 15px;
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.plan-card,
.kpi {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 8px 18px rgba(11, 24, 42, 0.05);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
  align-items: center;
}

.evidence-grid img {
  width: 100%;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.link-arrow {
  font-weight: 700;
  color: var(--brand);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.kpi span {
  font-size: 0.8rem;
  color: #476585;
}

.kpi strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.plan-card .price {
  font-size: 2rem;
  font-family: "Space Grotesk", sans-serif;
  margin: 10px 0 10px;
}

.plan-card .price span {
  font-size: 0.9rem;
}

.plan-card ul {
  margin: 0 0 15px;
  padding-left: 18px;
}

.plan-card li {
  margin: 6px 0;
  color: var(--ink-soft);
}

.page-shell h1 {
  margin-top: 4px;
  margin-bottom: 14px;
  font-size: clamp(1.9rem, 3.8vw, 3rem);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.timeline div {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: #f8fbfd;
}

.timeline strong {
  display: block;
  margin-bottom: 6px;
}

.code-block {
  border-radius: 16px;
  border: 1px solid #ccd7e2;
  background: #111f2c;
  color: #d8e9f5;
  padding: 14px;
}

.code-block pre {
  margin: 0;
  overflow: auto;
}

.clean-list {
  margin: 0;
  padding-left: 18px;
}

.clean-list li {
  margin: 6px 0;
}

.stack-form {
  display: grid;
  gap: 10px;
  width: min(620px, 100%);
}

.inline-form {
  margin: 0;
}

.notice {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  margin: 0 0 14px;
}

.notice.ok {
  border-color: #8eb8a1;
  background: #eef9f1;
  color: #1d5a34;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c7d2df;
  border-radius: 12px;
  padding: 11px 12px;
  font: inherit;
  background: white;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(32, 111, 143, 0.18);
  border-color: #88afc6;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: white;
  margin-bottom: 22px;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #e2e8ef;
  text-align: left;
  font-size: 0.92rem;
}

.data-table th {
  background: #f5f8fb;
  font-weight: 700;
}

.muted {
  color: #5a7591;
  font-size: 0.9rem;
}

.site-footer {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 22px;
  padding: 34px 0 26px;
}

.footer-logo {
  width: 170px;
  height: auto;
}

.footer-grid h4 {
  margin: 0 0 9px;
}

.footer-grid a {
  display: block;
  color: #416081;
  margin-bottom: 6px;
}

.footer-bottom {
  border-top: 1px solid #dfe6ee;
  padding: 15px 0 22px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #4a6988;
  font-size: 0.86rem;
}

@media (max-width: 1120px) {
  .hero-grid,
  .evidence-grid,
  .cards-3,
  .cards-2,
  .plan-grid,
  .footer-grid,
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
  }

  .nav-wrap {
    grid-template-columns: 1fr auto;
    height: 72px;
  }

  .mobile-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
  }

  .mobile-nav::-webkit-scrollbar {
    display: none;
  }
}