:root {
  --color-primary: #080808;
  --color-on-primary: #ffffff;
  --color-ink: #080808;
  --color-ink-strong: #222222;
  --color-body: #363636;
  --color-body-mid: #5a5a5a;
  --color-mute: #898989;
  --color-mute-soft: #ababab;
  --color-hairline: #d8d8d8;
  --color-canvas: #ffffff;
  --color-accent-purple: #7a3dff;
  --color-accent-pink: #ed52cb;
  --color-accent-blue: #3b89ff;
  --color-accent-blue-deep: #006acc;
  --color-accent-blue-info: #146ef5;
  --color-accent-orange: #ff6b00;
  --color-accent-green: #00d722;
  --color-accent-yellow: #ffae13;
  --color-accent-red: #ee1d36;
  --rounded-none: 0px;
  --rounded-xs: 2px;
  --rounded-sm: 4px;
  --rounded-md: 8px;
  --rounded-full: 9999px;
  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --font: "WF Visual Sans Variable", Inter, system-ui, Segoe UI, PingFang SC, Microsoft YaHei, sans-serif;
  --font-mono: WFVisualSans-Mono, Inconsolata, ui-monospace, SFMono-Regular, Menlo, monospace;
  --shadow-card: 0 84px 24px rgba(0,0,0,0), 0 54px 22px rgba(0,0,0,0.01), 0 30px 18px rgba(0,0,0,0.04), 0 13px 13px rgba(0,0,0,0.08), 0 3px 7px rgba(0,0,0,0.09);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.6;
  font-size: 16px;
  letter-spacing: -0.16px;
}
a { color: var(--color-accent-blue-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--space-3xl); }

.header { background: var(--color-canvas); }
.header-inner {
  display: flex; align-items: center; gap: 24px;
  min-height: 64px; flex-wrap: wrap; padding: 16px 0;
}
.logo { color: var(--color-ink); font-weight: 600; font-size: 16px; letter-spacing: -0.3px; }
.logo:hover { text-decoration: none; color: var(--color-ink); }
.nav { display: flex; flex-wrap: wrap; gap: 4px 20px; flex: 1; }
.nav a { color: var(--color-ink); font-size: 14px; font-weight: 500; }
.nav a.on { font-weight: 600; }
.back { margin-left: auto; font-size: 13px; color: var(--color-mute); }

.hero { padding: 64px 0 56px; }
.hero .eyebrow {
  font-size: 15px; font-weight: 500; letter-spacing: 1.5px;
  text-transform: uppercase; margin: 0 0 16px; color: var(--color-body-mid);
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 600; line-height: 1.04;
  letter-spacing: -0.8px;
  max-width: 14ch;
}
.hero p { margin: 0 0 24px; color: var(--color-body); max-width: 36em; font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 4px;
  font: inherit; font-size: 16px; font-weight: 500; line-height: 1.6;
  letter-spacing: -0.16px; cursor: pointer; border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-secondary { background: #fff; color: var(--color-ink); border-color: var(--color-hairline); }
.btn-arrow { background: none; border: 0; padding: 12px 0; color: var(--color-ink); }

.section { padding: 48px 0; }
.section h2 {
  font-size: 44px; font-weight: 600; line-height: 1.04; margin: 0 0 24px;
}
.eyebrow {
  font-size: 15px; font-weight: 500; letter-spacing: 1.5px;
  text-transform: uppercase; margin: 0 0 8px; color: var(--color-body-mid);
}
.muted { color: var(--color-body); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: 8px;
  padding: 32px;
}
.card.lift { box-shadow: var(--shadow-card); border: 0; }
.card.dark { background: var(--color-primary); color: #fff; border: 0; }
.card.dark p { color: #ccc; }
.card h3 { margin: 0 0 8px; font-size: 24px; font-weight: 500; }
.card p { margin: 0; color: var(--color-body); font-size: 16px; }
.card.stat h3 { font-size: 32px; font-weight: 500; }

.cat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.cat {
  border-radius: 8px; padding: 32px 20px; min-height: 140px; color: #fff;
  font-size: 20px; font-weight: 500;
}
.cat p { margin: 8px 0 0; font-size: 14px; font-weight: 400; color: rgba(255,255,255,.85); }
.cat-purple { background: var(--color-accent-purple); }
.cat-pink { background: var(--color-accent-pink); }
.cat-blue { background: var(--color-accent-blue); }
.cat-orange { background: var(--color-accent-orange); }
.cat-green { background: var(--color-accent-green); color: var(--color-primary); }
.cat-green p { color: var(--color-primary); }

.badge {
  display: inline-block; background: var(--color-accent-blue-info); color: #fff;
  font-size: 12.8px; font-weight: 550; padding: 4px 8px; border-radius: 4px; margin-bottom: 8px;
}

.list { list-style: none; margin: 0; padding: 0; }
.list li { border-bottom: 1px solid var(--color-hairline); padding: 14px 0; }
.list li:last-child { border-bottom: 0; }
.list .date { color: var(--color-mute); font-size: 12.8px; margin-right: 12px; font-family: var(--font-mono); }

.ph {
  background: #f4f4f4; color: var(--color-mute);
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: 8px;
}

form label { display: block; margin: 0 0 4px; font-size: 14px; font-weight: 500; }
form input, form textarea {
  width: 100%; max-width: 480px; padding: 12px 16px;
  border: 1px solid var(--color-hairline); border-radius: 4px;
  font: inherit; margin-bottom: 12px; background: #fff; color: var(--color-ink);
}
form button { background: var(--color-primary); color: #fff; border: 0; }

.footer { padding: 48px 0; color: var(--color-body-mid); font-size: 14px; border-top: 1px solid var(--color-hairline); }
.footer p { margin: 0 0 6px; }

@media (max-width: 900px) {
  .cat-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .grid, .grid-2, .cat-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 40px; }
  .section h2 { font-size: 28px; }
}

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