:root {
  color-scheme: light;
  --bg: #f3f5f7;
  --paper: #ffffff;
  --ink: #17201b;
  --muted: #65716b;
  --line: #dbe1dc;
  --soft: #eef3f0;
  --accent: #176b57;
  --blue: #2f74d0;
  --amber: #b7791f;
  --shadow: 0 18px 46px rgba(29, 42, 36, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(219, 225, 220, 0.85);
  background: rgba(243, 245, 247, 0.9);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 64px;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 900;
}

.brand-mark {
  width: 12px;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--blue), var(--accent));
}

.nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.hero,
.page-hero,
.section,
.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.88fr);
  gap: 40px;
  align-items: center;
  min-height: calc(100vh - 64px);
  padding: 52px 0 36px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  margin-top: 12px;
  max-width: 760px;
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  line-height: 0.98;
}

.hero-copy,
.page-hero p {
  margin-top: 20px;
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.8;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-weight: 900;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: white;
}

.button.disabled,
.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.68;
}

.support-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.app-visual {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.app-toolbar,
.subtitle-card,
.mini-panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}

.app-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 72px;
  padding: 14px;
}

.status-pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-weight: 900;
}

.status-pill::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #1fa778;
  box-shadow: 0 0 0 5px rgba(31, 167, 120, 0.12);
}

.play-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 900;
}

.subtitle-card {
  min-height: 230px;
  padding: 22px;
}

.subtitle-card small,
.mini-panel small {
  display: block;
  color: var(--muted);
  font-weight: 900;
}

.subtitle-card strong {
  display: block;
  margin-top: 18px;
  font-size: 1.55rem;
  line-height: 1.55;
}

.subtitle-card p {
  margin-top: 16px;
  color: var(--muted);
  font-weight: 800;
  line-height: 1.6;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mini-panel {
  padding: 14px;
}

.mini-panel strong {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
}

.section {
  padding: 54px 0;
}

.section h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.section-lead {
  margin-top: 12px;
  max-width: 760px;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.8;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.card,
.info-table,
.notice {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(29, 42, 36, 0.06);
}

.card {
  padding: 18px;
}

.card h3 {
  font-size: 1.05rem;
}

.product-card {
  position: relative;
  min-height: 190px;
}

.product-status {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  margin-bottom: 14px;
  padding: 0 9px;
  border-radius: 999px;
  background: rgba(23, 107, 87, 0.12);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
}

.product-status.muted {
  background: #edf2ed;
  color: var(--muted);
}

.card p,
.notice p,
.info-table td {
  color: var(--muted);
  font-weight: 700;
  line-height: 1.7;
}

.card p {
  margin-top: 10px;
}

.card-actions {
  margin-top: 18px;
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.step-card {
  min-height: 210px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(29, 42, 36, 0.06);
}

.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: rgba(47, 116, 208, 0.12);
  color: var(--blue);
  font-weight: 900;
}

.step-card h3 {
  font-size: 1.08rem;
}

.step-card p {
  margin-top: 10px;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.7;
}

.info-table {
  width: 100%;
  margin-top: 22px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
}

.info-table th,
.info-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: 0;
}

.info-table th {
  width: 210px;
  background: var(--soft);
  font-weight: 900;
}

.notice {
  margin-top: 22px;
  padding: 18px;
}

.notice strong {
  display: block;
  margin-bottom: 8px;
}

.timeline {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.release-item {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 22px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(29, 42, 36, 0.06);
}

.release-item h2 {
  margin-top: 8px;
  font-size: 1.45rem;
}

.release-date {
  margin-top: 8px;
  color: var(--muted);
  font-weight: 800;
}

.release-item ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.75;
}

.release-item li + li {
  margin-top: 7px;
}

.page-hero {
  padding: 72px 0 28px;
}

.page-hero h1 {
  max-width: 900px;
}

.footer {
  margin-top: 42px;
  border-top: 1px solid var(--line);
  background: #e8eeea;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 880px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 34px;
  }

  .card-grid,
  .step-list,
  .visual-grid,
  .release-item {
    grid-template-columns: 1fr;
  }

  .info-table th {
    width: 130px;
  }

  .footer-inner {
    flex-direction: column;
  }
}