:root {
  --bg: radial-gradient(120% 120% at 0% 0%, #0e1b2a 0%, #0f2a42 40%, #111a24 100%);
  --panel: rgba(255, 255, 255, 0.06);
  --text: #ecf3ff;
  --muted: #aab8cf;
  --accent: #55ccff;
  --line: rgba(85, 204, 255, 0.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); }
.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: clamp(16px, 4vw, 34px);
}
.site-header {
  display: flex;
  gap: 16px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.logo {
  width: 72px;
  height: 72px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 20px;
  background: linear-gradient(140deg, #11263d, #0d334c);
  display: grid;
  place-items: center;
}
.logo svg { width: 60px; height: 60px; }
.title-row h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2rem);
}
.title-row p { margin: 6px 0 0; color: var(--muted); }
.pill { display: inline-block; padding: 2px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; }
.hero {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 16px;
  padding: 18px;
}
.grid {
  margin-top: 16px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}
.card {
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  background: rgba(12,24,38,.45);
  padding: 14px;
}
.card h2 { font-size: 1.1rem; margin: 0 0 8px; }
.card p { margin: 0 0 8px; color: #cfd9eb; }
.lead {
  margin: 16px 0;
  color: #d6e3f7;
}
.note {
  margin-top: 22px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: #d8e5ff;
}
.footer {
  margin-top: 28px;
  border-top: 1px dashed rgba(255,255,255,.24);
  padding-top: 14px;
  color: var(--muted);
  font-size: 14px;
  display: grid;
  gap: 8px;
}
.section { margin-top: 20px; }
.section h2 { margin-bottom: 8px; }
.section p, .section li { color: #d5dff0; }
.section ul { padding-left: 20px; }
.ad-slot {
  margin-top: 18px;
  border: 1px dashed rgba(255,255,255,.35);
  border-radius: 12px;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #b9d0ed;
  background: linear-gradient(120deg, rgba(82,208,255,.12), rgba(255,255,255,.04));
}
.faq details { margin-bottom: 10px; border: 1px solid rgba(255,255,255,.17); border-radius: 10px; padding: 10px; }
.faq summary { cursor: pointer; color: #e6f4ff; }
.faq p { color: #c6d4eb; }
@media (max-width: 700px) {
  .site-header { align-items: flex-start; flex-direction: column; }
}