:root {
  --bg: #fff9f6;
  --card: #ffffff;
  --text: #2a2a2a;
  --muted: #6b7280;
  --primary: #b40000; /* 国庆红 */
  --primary-2: #ffb200; /* 亮金 */
  --accent: #e85a00;
  --ring: rgba(255, 178, 0, 0.45);
  --shadow: rgba(0, 0, 0, 0.08);
}

html[data-theme="dark"] {
  --bg: #0b0b0b;
  --card: #141414;
  --text: #f2f2f2;
  --muted: #9aa0a6;
  --primary: #ff5252;
  --primary-2: #ffcc66;
  --accent: #ff8f66;
  --ring: rgba(255, 204, 102, 0.35);
  --shadow: rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at -10% -10%, rgba(255, 178, 0, 0.15), transparent 50%),
    radial-gradient(800px 600px at 110% 10%, rgba(180, 0, 0, 0.12), transparent 50%),
    linear-gradient(135deg, #fff3ea 0%, #fff9f6 100%);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { font-size: 28px; }
.brand .title h1 { margin: 0; font-size: 20px; }
.brand .title p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.btn {
  appearance: none;
  border: none;
  padding: 10px 14px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 8px 20px var(--shadow);
  transition: transform .12s ease, box-shadow .12s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px var(--shadow); }
.btn:active { transform: translateY(0); }

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(0,0,0,0.06);
  color: var(--text);
}
.btn.primary { color: #fff; }
.btn.big { padding: 12px 18px; font-size: 16px; }

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 30px var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
}

.search-section { margin-top: 8px; }
.search-box { display: flex; gap: 8px; align-items: center; }
.search-box input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: #fff;
  outline: none;
  box-shadow: 0 2px 8px var(--shadow) inset;
}
.suggest { margin-top: 8px; color: var(--muted); font-size: 13px; }

.wheel-and-action {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
.wheel { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.wheel canvas { max-width: 100%; height: auto; }
.tip ul { margin: 8px 0 0; padding-left: 18px; }

.guide-container { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 16px; }

.guide-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.guide-header { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.guide-header h2 { margin: 0; font-size: 22px; }
.guide-header .meta { color: var(--muted); }
.guide-actions { display: flex; align-items: center; gap: 8px; }

.blocks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.block { padding: 12px; border-radius: 12px; background: linear-gradient(180deg, rgba(255,178,0,.09), rgba(255,255,255,1)); border: 1px solid rgba(0,0,0,0.04); }
.block h4 { margin: 0 0 8px; }
.block ul { margin: 0; padding-left: 18px; }

.side-panel {
  position: fixed;
  top: 0; right: 0;
  width: 360px; max-width: 86vw;
  height: 100vh;
  background: var(--card);
  transform: translateX(110%);
  transition: transform .2s ease;
  box-shadow: -10px 0 30px var(--shadow);
  border-left: 1px solid rgba(0,0,0,0.04);
  display: flex; flex-direction: column;
  z-index: 30;
}
.side-panel[aria-hidden="false"] { transform: translateX(0%); }
.side-panel-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid rgba(0,0,0,0.06); }
.side-panel-body { padding: 12px 16px; overflow: auto; }
.form-row { display: grid; grid-template-columns: 100px 1fr; align-items: center; gap: 8px; margin-bottom: 10px; }
.form-row input { padding: 10px 12px; border-radius: 10px; border: 1px solid rgba(0,0,0,0.08); background: #fff; }

.list-item { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 0; border-bottom: 1px dashed rgba(0,0,0,0.05); }

.footer { display: flex; align-items: center; justify-content: space-between; color: var(--muted); margin-top: 32px; padding-bottom: 32px; }
.footer .links { display: flex; align-items: center; gap: 8px; }

@media (max-width: 960px) {
  .wheel-and-action { grid-template-columns: 1fr; }
  .blocks { grid-template-columns: 1fr; }
}

/* focus ring */
.btn:focus, input:focus { outline: 3px solid var(--ring); outline-offset: 1px; }

/* helpers */
.muted { color: var(--muted); }