:root {
  --bg: #f7f3ec;
  --bg-elevated: #fffdf8;
  --ink: #2c241d;
  --ink-muted: #6d6156;
  --line: #e3d8c8;
  --brand: #8a4f2b;
  --brand-strong: #6f3d20;
  --brand-soft: #f0e2d2;
  --success: #2f6b4f;
  --success-soft: #dfeee5;
  --warning: #8a5a12;
  --warning-soft: #f8ecd4;
  --danger: #8a3128;
  --danger-soft: #f6dfdb;
  --shadow: 0 12px 30px rgba(70, 48, 30, 0.08);
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1814;
    --bg-elevated: #241f1a;
    --ink: #efe7dc;
    --ink-muted: #b6a899;
    --line: #3a3129;
    --brand: #d79a6b;
    --brand-strong: #e8b18a;
    --brand-soft: #3a2b21;
    --success: #8ac9a6;
    --success-soft: #22342a;
    --warning: #e0b36a;
    --warning-soft: #382d1c;
    --danger: #e0968c;
    --danger-soft: #3a2320;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 15% -10%, rgba(138, 79, 43, 0.12), transparent 42%),
    var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--brand);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--brand-strong);
}

.site-header,
.site-footer,
.page {
  width: min(100% - 32px, 720px);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: contain;
  flex: none;
}

.site-nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.site-nav a {
  color: var(--ink-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--brand);
}

.page {
  flex: 1;
  padding: 18px 0 48px;
}

.hero {
  padding: 22px 2px 10px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 7vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.35;
}

h3 {
  margin: 20px 0 6px;
  font-size: 16px;
}

.lede {
  margin: 0 0 18px;
  color: var(--ink-muted);
  font-size: 17px;
}

.muted {
  color: var(--ink-muted);
}

.fine-print {
  margin: 14px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.mono {
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  font-size: 0.92em;
}

.card {
  margin: 16px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.inner-card {
  box-shadow: none;
  background: transparent;
}

.muted-card {
  box-shadow: none;
  background: color-mix(in srgb, var(--brand-soft) 48%, var(--bg-elevated));
}

.price-card {
  padding: 26px 24px;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.price {
  font-size: 48px;
  font-weight: 750;
  line-height: 1;
  letter-spacing: -0.03em;
}

.price-note {
  color: var(--ink-muted);
  font-size: 15px;
}

.feature-list,
.steps {
  margin: 0 0 20px;
  padding-left: 1.2em;
}

.feature-list li,
.steps li {
  margin: 6px 0;
}

.agreement {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 4px 0 16px;
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.55;
}

.agreement input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--brand);
  flex: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font: inherit;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
}

.button:active {
  transform: translateY(1px);
}

.button-primary {
  background: var(--brand);
  color: #fff;
}

.button-primary:hover {
  background: var(--brand-strong);
  color: #fff;
}

.button-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.button-small {
  min-height: 38px;
  padding: 6px 14px;
  font-size: 14px;
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.button-block {
  width: 100%;
}

.buy-form {
  margin-top: 4px;
}

.inline-form {
  margin-top: 10px;
}

.notice {
  margin: 14px 0;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 14.5px;
}

.notice-info {
  background: var(--brand-soft);
  border-color: color-mix(in srgb, var(--brand) 25%, var(--line));
}

.notice-success {
  background: var(--success-soft);
  border-color: color-mix(in srgb, var(--success) 25%, var(--line));
  color: var(--success);
}

.notice-warning {
  background: var(--warning-soft);
  border-color: color-mix(in srgb, var(--warning) 28%, var(--line));
}

.notice-error {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 28%, var(--line));
  color: var(--danger);
}

.status {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.status-pending {
  background: var(--warning-soft);
  color: var(--warning);
}

.status-success {
  background: var(--success-soft);
  color: var(--success);
}

.status-warning {
  background: var(--warning-soft);
  color: var(--warning);
}

.status-muted {
  background: var(--line);
  color: var(--ink-muted);
}

.status-danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.order-meta {
  margin: 0;
  color: var(--ink-muted);
  font-size: 13.5px;
}

.summary {
  display: grid;
  gap: 2px;
  margin: 0 0 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.summary > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0;
}

.summary dt {
  color: var(--ink-muted);
}

.summary dd {
  margin: 0;
  font-weight: 650;
}

.key-list {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

.key-card {
  padding: 16px;
  border: 1px dashed color-mix(in srgb, var(--brand) 45%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--brand-soft) 36%, var(--bg-elevated));
}

.key-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.key-seat {
  font-weight: 700;
}

.key-hint {
  color: var(--ink-muted);
  font-size: 12.5px;
}

.key {
  display: block;
  margin: 0 0 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  user-select: all;
}

.prose {
  padding: 28px;
}

.prose h1 {
  font-size: 32px;
}

.prose h2 {
  margin-top: 26px;
}

.prose p,
.prose li {
  color: color-mix(in srgb, var(--ink) 88%, var(--ink-muted));
}

.prose ul {
  padding-left: 1.25em;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: space-between;
  padding: 22px 0 30px;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 12.5px;
}

.site-footer a {
  color: var(--ink-muted);
}

@media (max-width: 520px) {
  .card,
  .prose {
    padding: 18px;
  }

  .price {
    font-size: 42px;
  }

  .site-nav {
    gap: 12px;
  }

  .site-header {
    padding-top: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}