:root {
  --color-primary: #ffffff;
  --color-primary-pressed: #e8e8e8;
  --color-on-primary: #000000;
  --color-ink: #f4f4f6;
  --color-body: #cdcdcd;
  --color-charcoal: #d3d3d4;
  --color-mute: #9c9c9d;
  --color-ash: #6a6b6c;
  --color-stone: #434345;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255,255,255,0.72);
  --color-canvas: #07080a;
  --color-surface: #0d0d0d;
  --color-surface-elevated: #101111;
  --color-surface-card: #121212;
  --color-button-fg: #18191a;
  --color-hairline: #242728;
  --color-hairline-soft: rgba(255,255,255,0.08);
  --color-hairline-strong: rgba(255,255,255,0.16);
  --color-accent-blue: #57c1ff;
  --color-accent-red: #ff6161;
  --color-accent-green: #59d499;
  --color-accent-yellow: #ffc533;
  --color-hero-stripe-start: #ff5757;
  --color-hero-stripe-end: #a1131a;
  --color-key-bg-start: #121212;
  --color-key-bg-end: #0d0d0d;
  --rounded-none: 0px;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 10px;
  --rounded-xl: 16px;
  --rounded-full: 9999px;
  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-xxl: 32px;
  --space-section: 96px;
  --font-display: Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { background: #000; }
body {
  margin: 0 auto; max-width: 390px; min-height: 100vh;
  font-family: var(--font-body);
  font-feature-settings: "calt", "kern", "liga", "ss03";
  color: #cdcdcd; background: #07080a; font-size: 16px; line-height: 1.6; padding-bottom: 64px;
}
a { color: #fff; text-decoration: none; }
.top { background: #07080a; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #242728; }
.logo { font-weight: 500; color: #fff; }
.back { font-size: 12px; color: #9c9c9d; }
.hero { padding: 28px 16px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 80px;
  background: repeating-linear-gradient(-32deg, transparent 0 20px, #ff5757 20px 28px, #a1131a 28px 36px, transparent 36px 70px);
  opacity: 0.7; pointer-events: none;
}
.hero h1 { position: relative; font-size: 32px; font-weight: 600; line-height: 1.1; color: #f4f4f6; margin: 12px 0 8px; }
.hero p { position: relative; margin: 0; font-size: 14px; }
.hero-cta { position: relative; display: inline-flex; margin-top: 14px; background: #fff; color: #000; border-radius: 8px; padding: 8px 16px; font-size: 14px; font-weight: 500; }
.block { padding: 16px; }
.block h2 { font-size: 20px; font-weight: 500; color: #f4f4f6; margin: 0 0 12px; }
.cell { display: block; background: #0d0d0d; border: 1px solid #242728; border-radius: 10px; padding: 16px; margin-bottom: 8px; color: #f4f4f6; }
.cell h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.cell p { margin: 0; color: #9c9c9d; font-size: 13px; }
.row { display: flex; justify-content: space-between; gap: 8px; padding: 10px 0; border-bottom: 1px solid #242728; font-size: 14px; }
.row:last-child { border-bottom: 0; }
.row span { color: #9c9c9d; }
.ph { background: #121212; color: #6a6b6c; height: 120px; display: flex; align-items: center; justify-content: center; font-size: 13px; margin-bottom: 12px; border-radius: 10px; }
.kbd { font-size: 12px; background: #121212; border: 1px solid #242728; border-radius: 4px; padding: 1px 6px; color: #cdcdcd; }
form label { display: block; margin: 0 0 4px; font-size: 14px; color: #fff; }
form input, form textarea { width: 100%; padding: 8px 12px; border: 1px solid #242728; border-radius: 8px; background: #101111; color: #fff; font: inherit; margin-bottom: 12px; }
form button { width: 100%; padding: 10px; border: 0; border-radius: 8px; background: #fff; color: #000; font: inherit; font-weight: 500; }
.tab {
  position: fixed; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 100%; max-width: 390px; display: flex; background: #07080a; border-top: 1px solid #242728;
}
.tab a { flex: 1; text-align: center; padding: 10px 0; font-size: 11px; font-weight: 500; color: #6a6b6c; }
.tab a.on { color: #fff; }

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