:root {
  --bg: #0a0e17;
  --panel: #121826;
  --panel-2: #1a2130;
  --border: #232b3d;
  --border-2: #2f3a52;
  --text: #e8ecf4;
  --text-2: #8a93a8;
  --text-3: #5c6678;
  --red: #ff4d4f;
  --green: #2ea043;
  --accent: #ff5c5c;
  --blue: #3b82f6;
  --radius: 16px;
  --ice: #3b82f6;
  --panic: #22c55e;
  --neutral: #f59e0b;
  --fever: #f97316;
  --bubble: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 50;
}
.header-inner {
  max-width: 1100px; margin: 0 auto; padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { flex-shrink: 0; filter: drop-shadow(0 0 8px rgba(255,77,79,.5)); }
.brand-text h1 { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.brand-sub { font-size: 12px; color: var(--text-2); }
.header-date { font-size: 13px; color: var(--text-2); font-variant-numeric: tabular-nums; }
.slogan { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 2px; }
.slogan-main { font-size: 15px; color: #cbd5e1; letter-spacing: 2px; }
.slogan-sub { font-size: 11px; color: var(--text-3); letter-spacing: 3px; }

main { max-width: 1100px; margin: 0 auto; padding: 24px 20px; }

/* ===== 大数字仪表盘 ===== */
.dashboard { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 22px; }
.gauge-card {
  background: linear-gradient(180deg, var(--panel) 0%, #0f1420 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  position: relative;
  overflow: hidden;
}
.gauge-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--accent);
}
.gauge-head { display: flex; align-items: center; justify-content: space-between; }
.gauge-name { font-size: 15px; font-weight: 600; color: var(--text-2); letter-spacing: .5px; }
.gauge-zone {
  color: #0a0e17; font-size: 12px; font-weight: 700;
  padding: 3px 12px; border-radius: 999px;
}
.gauge-main { display: flex; align-items: baseline; gap: 16px; margin: 14px 0 18px; }
.gauge-num {
  font-size: 68px; font-weight: 700; line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -2px;
}
.gauge-unit { font-size: 18px; color: var(--text-3); font-weight: 500; white-space: nowrap; }
.gauge-delta { margin-left: auto; text-align: right; }
.delta { font-size: 14px; font-weight: 600; }
.delta.up { color: var(--red); }
.delta.down { color: var(--green); }
.gauge-desc { font-size: 12px; color: var(--text-3); margin-top: 3px; }

.temp-bar { position: relative; height: 12px; border-radius: 999px; margin: 6px 0 10px;
  background: linear-gradient(90deg, var(--ice) 0%, var(--panic) 20%, var(--neutral) 50%, var(--fever) 80%, var(--bubble) 100%);
}
.temp-marker {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 20px; height: 20px; border-radius: 50%;
  background: #fff; border: 4px solid #0a0e17;
  box-shadow: 0 0 0 2px rgba(255,255,255,.5);
  transition: left .6s ease;
}
.temp-scale { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); }

/* ===== 今日结论 ===== */
.conclusion-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.concl-col h3 {
  font-size: 14px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.concl-col p { font-size: 13px; color: var(--text-2); line-height: 1.9; }
.concl-col p + p { margin-top: 8px; }
.concl-col b { color: var(--text); font-weight: 600; }
.concl-col .na { color: var(--text-3); }

/* ===== 卡片通用 ===== */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px; margin-bottom: 20px;
}
.section-head { margin-bottom: 16px; }
.section-head h2 { font-size: 17px; font-weight: 600; }
.section-head p { font-size: 12px; color: var(--text-2); margin-top: 2px; }

.chart { width: 100%; height: 400px; }
.chart-legend { display: flex; gap: 22px; margin-top: 8px; }
.legend-item { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 7px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }

/* ===== 最新日报 ===== */
.today-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.report-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--panel-2);
  border-left: 4px solid var(--accent);
  transition: border-color .15s, transform .15s;
}
.report-card:hover { border-color: var(--border-2); transform: translateY(-2px); }
.rc-name { font-weight: 600; }
.rc-date { color: var(--text-2); font-size: 13px; }
.rc-arrow { color: var(--accent); font-size: 13px; font-weight: 600; }

/* ===== 归档 ===== */
.archive-list { display: flex; flex-direction: column; }
.archive-row {
  display: flex; align-items: center; gap: 14px;
  padding: 9px 4px; border-bottom: 1px solid var(--border);
}
.archive-row:last-child { border-bottom: none; }
.ar-date { font-variant-numeric: tabular-nums; font-size: 13px; font-weight: 600; min-width: 92px; }
.ar-wd { font-size: 12px; color: var(--text-2); min-width: 40px; }
.ar-links { display: flex; gap: 10px; }
.ar-links a {
  font-size: 12px; color: #7aa2ff; padding: 2px 10px;
  border: 1px solid #24314d; border-radius: 6px; background: #131c2e;
}
.ar-links a:hover { background: #1a2540; }
.ar-links .na { font-size: 12px; color: var(--text-3); padding: 2px 10px; border: 1px solid var(--border); border-radius: 6px; }

.archive-toggle {
  display: block; margin: 14px auto 2px; padding: 8px 22px;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text-2); border-radius: 999px; cursor: pointer;
  font-size: 13px; transition: border-color .15s, color .15s;
}
.archive-toggle:hover { border-color: var(--border-2); color: var(--text); }

/* ===== 关于 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.about-col h3 { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.about-col p { font-size: 13px; color: var(--text-2); }
.zone-list { list-style: none; }
.zone-list li { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.zone-list i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }

.error { color: #f87171; font-size: 14px; padding: 20px; }

.site-footer { text-align: center; padding: 24px 20px 32px; color: var(--text-3); font-size: 12px; }
.footer-mail { color: #7aa2ff; }
.footer-mail:hover { text-decoration: underline; }

@media (max-width: 720px) {
  .dashboard, .today-grid, .about-grid, .conclusion-grid { grid-template-columns: 1fr; }
  .slogan { display: none; }
  .gauge-num { font-size: 52px; letter-spacing: -1px; }
  .gauge-unit { font-size: 14px; }
  .chart { height: 300px; }
  .ar-date { min-width: 78px; }
}