/* 主题：plateau 雪域白 - 高原 / 西藏 / 青海 / 雪山 */
:root {
  --primary: #3A5680;
  --primary-dark: #283e5e;
  --primary-soft: rgba(58,86,128,0.1);
  --accent: #C93756;
  --text: #1a2533;
  --text-mute: #5d6678;
  --bg: #f4f7fb;
  --bg-alt: #e7eef7;
  --header-bg: rgba(255,255,255,0.95);
  --border: rgba(58,86,128,0.12);
  --hero-bg: linear-gradient(180deg, #d8e3f3 0%, #6e88b0 40%, #3A5680 100%);
  --hero-text: #fff;
  --hero-title: #fff;
  --hero-pattern:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.25) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(201,55,86,0.2) 0%, transparent 40%),
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
  --chip-bg: rgba(255,255,255,0.18);
  --chip-border: rgba(255,255,255,0.4);
  --chip-text: #fff;
  --meta-border: rgba(255,255,255,0.3);
  --strip-bg: linear-gradient(135deg, #283e5e 0%, #3A5680 100%);
  --strip-deco: linear-gradient(90deg, #3A5680, #C93756, #3A5680);
  --card-bg: #fff;
  --input-bg: #f5f8fc;
  --footer-bg: #1a2533;
  --footer-pattern:
    radial-gradient(circle at 50% 0%, rgba(255,255,255,0.08) 0%, transparent 50%);
}