:root {
  --red: #c91920;
  --red-dark: #9d1018;
  --bg: #f7f2ee;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #6f6f76;
  --line: rgba(201, 25, 32, 0.12);
  --shadow: 0 12px 30px rgba(25, 9, 10, 0.09);
  --radius: 20px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", PingFang SC, Microsoft YaHei, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(201,25,32,.12), transparent 30%),
    linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.page { max-width: 1080px; margin: 0 auto; min-height: 100vh; }
.hero {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #fff;
  padding: 20px 16px 24px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "甲骨文 · 足球";
  position: absolute;
  right: -4px;
  top: 10px;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: 6px;
  color: rgba(255,255,255,.08);
  transform: rotate(-8deg);
  white-space: nowrap;
}
.hero__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  z-index: 1;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 50px; height: 50px; border-radius: 16px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.22);
  font-size: 22px; font-weight: 900;
}
.brand h1 { margin: 0; font-size: 18px; line-height: 1.2; }
.brand p { margin: 4px 0 0; font-size: 12px; opacity: .88; }
.hero__body { position: relative; z-index: 1; padding-top: 18px; }
.eyebrow { margin: 0 0 10px; font-size: 12px; letter-spacing: 1px; opacity: .85; }
.hero h2 { margin: 0; font-size: 28px; line-height: 1.18; max-width: 12em; }
.hero__copy { margin: 12px 0 0; max-width: 28em; line-height: 1.7; color: rgba(255,255,255,.9); font-size: 14px; }
.hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.hero__chips span {
  padding: 7px 10px; border-radius: 999px; font-size: 12px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.18);
}
.content { padding: 16px; display: grid; gap: 16px; }
.card {
  background: var(--card); border: 1px solid rgba(201,25,32,.08);
  box-shadow: var(--shadow); border-radius: var(--radius); padding: 16px;
}
.hero-card {
  display: grid;
  gap: 14px;
  background: linear-gradient(180deg, #fff, #fff8f8);
}
.hero-card__label {
  display: inline-block;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-card h3 { margin: 8px 0 8px; font-size: 22px; line-height: 1.35; }
.hero-card p { margin: 0 0 14px; color: var(--muted); line-height: 1.7; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stats div {
  padding: 14px 12px; border-radius: 14px; background: #fff;
  border: 1px solid var(--line); text-align: center;
}
.stats b { display: block; color: var(--red); font-size: 22px; margin-bottom: 4px; }
.stats span { color: var(--muted); font-size: 12px; }
.split-card { display: grid; gap: 16px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.section-head h3 { margin: 0; font-size: 16px; }
.section-head span { font-size: 12px; color: var(--muted); }
.grid { display: grid; gap: 12px; }
.grid--nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.nav-item {
  display: block; text-decoration: none; color: inherit;
  padding: 15px; border-radius: 16px;
  border: 1px solid var(--line); background: linear-gradient(180deg, #fff, #fff8f8);
}
.nav-item strong { display: block; font-size: 15px; }
.nav-item span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.nav-item em { display: inline-block; margin-top: 10px; color: var(--red); font-style: normal; font-weight: 700; font-size: 12px; }
.rules, .levels { display: grid; gap: 10px; }
.rule, .level {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border-radius: 14px; padding: 13px 14px; border: 1px solid var(--line); background: #fff;
}
.rule b, .level b { font-size: 14px; }
.rule span, .level span { color: var(--red); font-weight: 800; }
.note, .contact { color: var(--muted); line-height: 1.7; font-size: 14px; }
.note p, .contact p { margin: 0 0 8px; }
.feed { display: grid; gap: 12px; }
.feed-item {
  padding: 14px; border-radius: 14px; background: #fff;
  border: 1px solid var(--line);
}
.feed-item b { display: block; margin-bottom: 6px; font-size: 14px; }
.feed-item small { color: var(--muted); line-height: 1.6; }
.btn {
  border: none; border-radius: 999px; padding: 11px 16px; font-weight: 700;
}
.btn--primary { background: var(--red); color: #fff; }
.btn--light { background: #fff; color: var(--red); }
.btn--ghost { background: transparent; color: var(--red); padding: 0; }
.footer {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 18px 16px 28px; color: var(--muted); font-size: 12px;
}
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.42);
  display: grid; place-items: center; padding: 16px;
}
.modal[hidden] { display: none !important; }
.modal__panel {
  width: 100%; max-width: 420px; background: #fff; border-radius: 20px;
  box-shadow: var(--shadow); padding: 16px; display: grid; gap: 10px;
}
.modal__panel label { font-size: 12px; color: var(--muted); }
.modal__panel input {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid rgba(0,0,0,.12);
  font-size: 14px;
}
.modal__tip { margin: 4px 0 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.searchbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-bottom: 12px;
}
.searchbar input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,.12);
  font-size: 14px;
}

@media (min-width: 760px) {
  .content { grid-template-columns: 1fr 1fr; }
  .hero-card, .card:nth-child(3), .card:nth-child(4), .card:nth-child(5), .card:nth-child(6), .card:nth-child(7) { grid-column: 1 / -1; }
  .hero-card { grid-template-columns: 1.4fr .8fr; align-items: center; }
  .split-card { grid-template-columns: 1fr 1fr; }
}