:root {
  --color-primary: #e60023;
  --color-on-primary: #ffffff;
  --color-primary-pressed: #cc001f;
  --color-ink: #000000;
  --color-ink-soft: #211922;
  --color-body: #33332e;
  --color-charcoal: #262622;
  --color-mute: #62625b;
  --color-ash: #91918c;
  --color-stone: #c8c8c1;
  --color-hairline: #dadad3;
  --color-hairline-soft: #e5e5e0;
  --color-on-secondary: #000000;
  --color-secondary-bg: #e5e5e0;
  --color-secondary-pressed: #c8c8c1;
  --color-canvas: #ffffff;
  --color-surface-soft: #fbfbf9;
  --color-surface-card: #f6f6f3;
  --color-surface-elevated: #ffffff;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255,255,255,0.7);
  --color-surface-dark: #262622;
  --color-focus-outer: #435ee5;
  --color-error: #9e0a0a;
  --rounded-none: 0px;
  --rounded-sm: 8px;
  --rounded-md: 16px;
  --rounded-lg: 32px;
  --rounded-full: 9999px;
  --space-xxs: 4px;
  --space-xs: 6px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-xxl: 32px;
  --space-section: 64px;
  --font-display: "Pin Sans", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Pin Sans", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-surface-soft);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.4;
}
a { color: var(--color-ink-soft); text-decoration: none; font-weight: 600; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.header {
  background: var(--color-canvas);
  position: sticky; top: 0; z-index: 40;
}
.header-inner {
  display: flex; align-items: center; gap: 16px;
  min-height: 64px; flex-wrap: wrap;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700; font-size: 20px;
  color: var(--color-primary); letter-spacing: -0.4px;
}
.logo:hover { text-decoration: none; }
.logo::before {
  content: "";
  display: inline-block; width: 24px; height: 24px; margin-right: 8px;
  vertical-align: -5px; border-radius: 50%;
  background: var(--color-primary);
  box-shadow: inset 0 -6px 0 rgba(0,0,0,0.12);
}
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; flex: 1; }
.nav a { color: var(--color-ink); font-weight: 600; font-size: 16px; }
.nav a.on { color: var(--color-primary); }
.back { margin-left: auto; font-size: 12px; color: var(--color-mute); font-weight: 400; }
.header-cta {
  background: var(--color-primary); color: var(--color-on-primary);
  border-radius: var(--rounded-md); padding: 6px 14px; height: 40px;
  display: inline-flex; align-items: center;
  font-size: 14px; font-weight: 700; line-height: 1;
}
.header-cta:hover { background: var(--color-primary-pressed); text-decoration: none; color: #fff; }

.hero {
  padding: 72px 0 56px;
  background: var(--color-surface-soft);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 70px; font-weight: 600; line-height: 1.1;
  letter-spacing: -1.2px; color: var(--color-ink); margin: 0 0 16px;
  max-width: 14ch;
}
.hero p { margin: 0; color: var(--color-body); max-width: 36em; font-size: 16px; line-height: 1.4; }
.hero-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

.btn, form button {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary); color: var(--color-on-primary);
  border: 0; border-radius: var(--rounded-md);
  padding: 6px 14px; height: 40px;
  font-family: var(--font-body); font-size: 14px; font-weight: 700;
  cursor: pointer;
}
.btn:hover, form button:hover { background: var(--color-primary-pressed); text-decoration: none; color: #fff; }
.btn-secondary {
  background: var(--color-secondary-bg); color: var(--color-on-secondary);
}
.btn-secondary:hover { background: var(--color-secondary-pressed); color: #000; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.chip {
  background: var(--color-surface-card); color: var(--color-ink);
  border-radius: var(--rounded-full); padding: 8px 16px;
  font-size: 14px; font-weight: 700;
}
.chip.on { background: var(--color-ink); color: #fff; }

.section { padding: var(--space-section) 0; }
.section h2 {
  font-size: 28px; font-weight: 700; letter-spacing: -1.2px;
  color: var(--color-ink); margin: 0 0 24px; line-height: 1.2;
}
.muted { color: var(--color-mute); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }

.card {
  background: var(--color-canvas);
  border-radius: var(--rounded-md);
  padding: 32px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; color: var(--color-ink); }
.card p { margin: 0; color: var(--color-mute); font-size: 14px; }

.stat h3 { font-size: 28px; font-weight: 700; letter-spacing: -1.2px; color: var(--color-ink); }

.masonry { column-count: 4; column-gap: 8px; }
.pin {
  break-inside: avoid; margin-bottom: 8px; position: relative;
  border-radius: var(--rounded-md); overflow: hidden;
  background: var(--color-surface-card);
}
.pin .ph { margin: 0; border-radius: 0; height: 180px; }
.pin.tall .ph { height: 260px; }
.pin.short .ph { height: 140px; }
.pin-label {
  position: absolute; left: 10px; bottom: 10px;
  background: var(--color-canvas); color: var(--color-ink);
  border-radius: var(--rounded-full); padding: 6px 12px;
  font-size: 12px; font-weight: 700; line-height: 1;
}

.ph {
  background: var(--color-surface-card); color: var(--color-ash);
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: var(--rounded-md);
}
.ph.lg { height: 320px; border-radius: var(--rounded-lg); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split h2 { font-size: 28px; }

.cta-strip {
  background: var(--color-surface-dark); color: var(--color-on-dark);
  padding: 48px 32px; border-radius: 0;
}
.cta-strip h2 { color: #fff; margin: 0 0 8px; }
.cta-strip p { color: var(--color-on-dark-mute); margin: 0 0 20px; }

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  border-bottom: 1px solid var(--color-hairline);
  padding: 16px 0; display: flex; gap: 16px; align-items: baseline;
  color: var(--color-ink); font-weight: 600;
}
.list li:last-child { border-bottom: 0; }
.list .date { color: var(--color-mute); font-size: 12px; font-weight: 400; min-width: 88px; }

form label { display: block; margin: 0 0 6px; font-size: 16px; font-weight: 600; color: var(--color-ink); }
form input, form textarea {
  width: 100%; max-width: 480px; padding: 11px 15px; height: 44px;
  border: 1px solid var(--color-ash); background: var(--color-canvas);
  color: var(--color-ink); font: inherit; margin-bottom: 12px;
  border-radius: var(--rounded-md);
}
form textarea { height: auto; }
form input:focus, form textarea:focus {
  outline: 4px solid var(--color-focus-outer); border-color: var(--color-ink);
}

.footer {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: 32px 24px 48px; color: var(--color-mute); font-size: 14px;
}
.footer p { margin: 0 0 4px; }
.footer .wordmark { color: var(--color-primary); font-weight: 700; }

@media (max-width: 900px) {
  .hero h1 { font-size: 44px; }
  .masonry { column-count: 2; }
  .grid, .grid-2, .split { grid-template-columns: 1fr; }
}

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }