:root {
  --brand: #ed0103;
  --brand-dark: #bb0102;
  --ink: #1a1a1a;
  --muted: #5c6370;
  --line: #e8eaed;
  --bg: #f7f8fa;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.75; font-size: 15px;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
header { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 18px; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 8px; background: var(--brand); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700;
}
.nav-links { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 14px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover, .nav-links a.on { color: var(--brand); text-decoration: none; }
.hero {
  background:
    radial-gradient(circle at 10% 10%, rgba(237, 1, 3,.08), transparent 40%),
    linear-gradient(180deg, #fff, var(--bg));
  padding: 48px 0 36px; border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; }
.eyebrow { color: var(--brand); font-size: 13px; font-weight: 700; letter-spacing: .06em; }
h1 { font-size: 36px; line-height: 1.3; margin: 8px 0 14px; }
h2 { font-size: 26px; margin: 0 0 12px; }
h3 { font-size: 18px; margin: 0 0 10px; }
.lead { color: var(--muted); margin: 0 0 20px; max-width: 42em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 42px; padding: 0 18px; border-radius: 8px; font-size: 14px; font-weight: 600;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); text-decoration: none; }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); text-decoration: none; }
section { padding: 48px 0; }
section.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-desc { color: var(--muted); margin: 0 0 24px; max-width: 52em; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card p, .prose p { color: var(--muted); margin: 0 0 12px; }
.prose p { max-width: 52em; }
.list { margin: 0; padding-left: 1.2em; color: var(--muted); }
.list li { margin: 7px 0; }
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.shot {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px;
  text-align: center;
}
.shot img {
  width: 100%; max-width: 240px; border-radius: 18px; border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(0,0,0,.08);
}
.shot-cap { margin-top: 12px; font-size: 13px; color: var(--muted); }
.info-row { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.info-row .k { width: 130px; color: var(--muted); flex-shrink: 0; }
.page-banner { padding: 36px 0 10px; background: #fff; border-bottom: 1px solid var(--line); }
footer { background: #16181d; color: #c8ccd4; padding: 36px 0 24px; font-size: 13px; }
footer a { color: #f0f2f5; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.foot-title { color: #fff; font-weight: 700; margin-bottom: 10px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.copy { border-top: 1px solid #2a2e36; padding-top: 14px; color: #9aa1ac; }
@media (max-width: 900px) {
  .hero-grid, .cards, .shots, .foot-grid { grid-template-columns: 1fr; }
  h1 { font-size: 28px; }
  .nav { flex-direction: column; align-items: flex-start; padding: 12px 0; }
}