/* Theme 02 · Crimson Arena — 赛场红 + 深灰底纹 */
:root {
  --bg-deep: #f0e8e8;
  --bg: #faf5f5;
  --bg-card: #ffffff;
  --bg-card2: #fff8f8;
  --panel: #fceeee;
  --text: #1a0a0a;
  --text-soft: #3d1717;
  --muted: #6b4f4f;
  --line: rgba(127, 29, 29, 0.11);
  --line-strong: rgba(185, 28, 28, 0.4);
  --accent: #b91c1c;
  --accent-dim: #991b1b;
  --accent-blue: #1d4ed8;
  --accent-blue-dim: #1e40af;
  --accent-violet: #6b21a8;
  --accent-violet-dim: #581c87;
  --accent-amber: #b45309;
  --accent-amber-dim: #92400e;
  --accent-coral: #be123c;
  --accent-sky: #0e7490;
  --gold: #92400e;
  --gold-soft: rgba(180, 83, 9, 0.14);
  --shadow: 0 18px 48px rgba(69, 10, 10, 0.08);
  --shadow-soft: 0 10px 32px rgba(127, 29, 29, 0.07);
  --glow: 0 8px 32px rgba(185, 28, 28, 0.16);
  --glow-blue: 0 8px 32px rgba(29, 78, 216, 0.12);
  --glow-violet: 0 8px 32px rgba(107, 33, 168, 0.11);
  --radius: 18px;
  --radius-sm: 12px;
  --mesh-base: linear-gradient(180deg, #fffafa 0%, #fceeee 45%, #f5e4e4 100%);
  --mesh-side-violet: rgba(107, 33, 168, 0.12);
  --mesh-side-teal: rgba(14, 116, 144, 0.1);
  --mesh-side-blue: rgba(29, 78, 216, 0.1);
  --mesh-side-amber: rgba(180, 83, 9, 0.12);
}

html { background-color: #e8d8d8; }

body {
  background-image:
    radial-gradient(ellipse 54% 118% at -14% 48%, rgba(185, 28, 28, 0.14), transparent 55%),
    radial-gradient(ellipse 40% 86% at -8% 74%, rgba(190, 18, 60, 0.09), transparent 50%),
    radial-gradient(ellipse 50% 112% at 114% 48%, rgba(107, 33, 168, 0.1), transparent 54%),
    radial-gradient(ellipse 38% 80% at 106% 22%, rgba(29, 78, 216, 0.09), transparent 48%),
    radial-gradient(ellipse 420px 360px at 0% 0%, rgba(180, 83, 9, 0.07), transparent 55%),
    radial-gradient(ellipse 380px 300px at 100% 100%, rgba(185, 28, 28, 0.08), transparent 52%),
    radial-gradient(ellipse 900px 480px at 50% -5%, rgba(153, 27, 27, 0.06), transparent 60%),
    linear-gradient(90deg,
      rgba(185, 28, 28, 0.07) 0%,
      rgba(255, 255, 255, 0) clamp(110px, 17vw, 320px),
      rgba(255, 255, 255, 0) calc(100% - clamp(110px, 17vw, 320px)),
      rgba(107, 33, 168, 0.07) 100%),
    var(--mesh-base);
  background-attachment: fixed;
}

.hero-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.h1 {
  background: linear-gradient(125deg, #450a0a 0%, #991b1b 38%, #dc2626 68%, #7c2d12 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #ef4444, var(--accent-dim));
  box-shadow: 0 8px 28px rgba(185, 28, 28, 0.3);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(185, 28, 28, 0.42); }

.nav a:nth-child(1):hover {
  background: rgba(185, 28, 28, 0.14);
  color: var(--accent-dim);
}
.nav a:nth-child(2):hover {
  background: rgba(29, 78, 216, 0.1);
  color: var(--accent-blue);
}
.nav a:nth-child(3):hover {
  background: rgba(107, 33, 168, 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), #f97316, var(--accent-coral), var(--accent-blue), var(--accent-violet));
}

.topbar {
  border-bottom-color: rgba(185, 28, 28, 0.12);
}

/* —— 版式：特点卡左侧色条 + 证言双列 —— */
.feature-card {
  border-top: 0 !important;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.feature-card:nth-child(4n+2) { border-left-color: rgba(37, 99, 235, 0.55); }
.feature-card:nth-child(4n+3) { border-left-color: rgba(124, 58, 237, 0.5); }
.feature-card:nth-child(4n+4) { border-left-color: rgba(217, 119, 6, 0.55); }
.quote-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
@media (max-width: 900px) {
  .quote-grid { grid-template-columns: 1fr; }
}
.pager {
  justify-content: center;
  gap: 8px;
}
.pager a {
  min-width: 2.5rem;
  justify-content: center;
}

/* —— 气质Ⅱ：赛场张力 · 更重的标题 + 偏方按钮 + 底边强调顶栏 —— */
.h1 {
  font-weight: 950;
  letter-spacing: -0.02em;
}
.btn,
.btn-primary {
  border-radius: 9px;
}
.btn-primary {
  letter-spacing: 0.04em;
}
.section-title::before {
  width: 5px;
  border-radius: 2px;
  transform: skewY(-3deg);
}
.topbar {
  box-shadow: 0 4px 0 rgba(185, 28, 28, 0.14);
}
.quote {
  border-left: 4px solid var(--accent);
  background: rgba(185, 28, 28, 0.045);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.card {
  border-radius: var(--radius-sm);
}