/* Theme 01 · Azure Bing — 专业蓝灰、利于阅读与必应类资讯站观感 */
:root {
  --bg-deep: #e4edf5;
  --bg: #eef4fa;
  --bg-card: #ffffff;
  --bg-card2: #f6f9fd;
  --panel: #e8f0f8;
  --text: #0f172a;
  --text-soft: #1e3a5f;
  --muted: #5c6b80;
  --line: rgba(15, 23, 42, 0.085);
  --line-strong: rgba(0, 120, 212, 0.38);
  --accent: #0078d4;
  --accent-dim: #106ebe;
  --accent-blue: #005a9e;
  --accent-blue-dim: #004578;
  --accent-violet: #5c2d91;
  --accent-violet-dim: #461d73;
  --accent-amber: #c17d00;
  --accent-amber-dim: #8f5e00;
  --accent-coral: #c42b1c;
  --accent-sky: #00bcf2;
  --gold: #876800;
  --gold-soft: rgba(193, 125, 0, 0.12);
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.09);
  --shadow-soft: 0 10px 32px rgba(0, 90, 158, 0.07);
  --glow: 0 8px 32px rgba(0, 120, 212, 0.14);
  --glow-blue: 0 8px 32px rgba(0, 90, 158, 0.14);
  --glow-violet: 0 8px 32px rgba(92, 45, 145, 0.11);
  --radius: 15px;
  --radius-sm: 11px;
  --mesh-base: linear-gradient(180deg, #f7fafd 0%, #e8f2fa 50%, #dceaf5 100%);
  --mesh-side-violet: rgba(0, 120, 212, 0.13);
  --mesh-side-teal: rgba(0, 188, 242, 0.1);
  --mesh-side-blue: rgba(0, 90, 158, 0.12);
  --mesh-side-amber: rgba(193, 125, 0, 0.09);
}

html { background-color: #d8e4f0; }

body {
  background-image:
    radial-gradient(ellipse 55% 115% at -12% 45%, var(--mesh-side-blue), transparent 56%),
    radial-gradient(ellipse 42% 88% at -6% 75%, var(--mesh-side-teal), transparent 52%),
    radial-gradient(ellipse 48% 110% at 112% 50%, rgba(0, 120, 212, 0.11), transparent 54%),
    radial-gradient(ellipse 36% 78% at 105% 25%, rgba(92, 45, 145, 0.1), transparent 48%),
    radial-gradient(ellipse 400px 340px at 0% 0%, rgba(0, 188, 242, 0.07), transparent 56%),
    radial-gradient(ellipse 360px 290px at 100% 100%, var(--mesh-side-amber), transparent 52%),
    radial-gradient(ellipse 860px 460px at 50% -6%, rgba(0, 120, 212, 0.06), transparent 60%),
    linear-gradient(90deg,
      rgba(0, 120, 212, 0.07) 0%,
      rgba(255, 255, 255, 0) clamp(120px, 18vw, 330px),
      rgba(255, 255, 255, 0) calc(100% - clamp(120px, 18vw, 330px)),
      rgba(0, 90, 158, 0.08) 100%),
    var(--mesh-base);
  background-attachment: fixed;
}

.container { max-width: 1220px; }

.h1 {
  background: linear-gradient(125deg, #0f172a 0%, #004578 32%, var(--accent) 62%, var(--accent-sky) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #00bcf2, var(--accent-dim));
  box-shadow: 0 8px 28px rgba(0, 120, 212, 0.28);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(0, 120, 212, 0.38); }

.nav a:nth-child(1):hover {
  background: rgba(0, 120, 212, 0.12);
  color: var(--accent-dim);
}
.nav a:nth-child(2):hover {
  background: rgba(0, 90, 158, 0.1);
  color: var(--accent-blue);
}
.nav a:nth-child(3):hover {
  background: rgba(92, 45, 145, 0.1);
  color: var(--accent-violet);
}
.nav a:nth-child(n+4):hover { background: var(--gold-soft); color: var(--gold); }

.hero-side-card::before {
  background: linear-gradient(90deg, var(--accent), var(--accent-sky), #876800, var(--accent-blue), var(--accent-violet));
}

.topbar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(238, 244, 250, 0.9) 100%);
}

/* —— 版式：导航胶囊 + 首屏区块居中 + KPI 左侧强调 —— */
.topbar .nav a {
  border-radius: 999px;
}
body .container section.section:first-of-type .section-head {
  text-align: center;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}
.grid4 { gap: 22px; }
.kpis .kpi {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  background: linear-gradient(90deg, rgba(0, 120, 212, 0.07), transparent 85%);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
@media (min-width: 901px) {
  .readmore-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* —— 气质Ⅱ：商务理性 · 略紧字距 + 偏方的按钮与证言卡 —— */
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei UI", system-ui, sans-serif;
  letter-spacing: 0.01em;
}
.brand-title,
.section-title {
  letter-spacing: 0.04em;
}
.btn:not(.btn-primary) {
  border-radius: 10px;
  border-width: 2px;
  font-weight: 650;
}
.btn-primary {
  border-radius: 10px;
}
.quote {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 120, 212, 0.14);
  background: linear-gradient(165deg, #ffffff, rgba(238, 244, 250, 0.92));
}
.footer-panel {
  border: 1px solid rgba(0, 90, 158, 0.08);
}