/* Design tokens — 谱睿智臻 Logo 色系：白为主、双蓝为辅、紫色点缀 */
:root {
  /* Logo 原色 */
  --color-logo-blue-deep: #0038c8;
  --color-logo-blue-bright: #2878f8;
  --color-logo-blue-text: #3c68d9;
  --color-logo-purple: #8838f8;
  --color-logo-purple-deep: #6010d8;

  /* 语义色 */
  --color-ink: #1a2744;
  --color-ink-muted: #5a6b8a;
  --color-surface: #ffffff;
  --color-canvas: #fafbfd;
  --color-canvas-muted: #f3f6fc;
  --color-line: #e4eaf4;

  --color-brand: var(--color-logo-blue-deep);
  --color-brand-deep: #002a96;
  --color-accent: var(--color-logo-blue-bright);
  --color-accent-purple: var(--color-logo-purple);

  --color-brand-soft: rgba(0, 56, 200, 0.07);
  --color-accent-soft: rgba(40, 120, 248, 0.1);
  --color-purple-soft: rgba(136, 56, 248, 0.07);

  --gradient-brand: linear-gradient(
    135deg,
    var(--color-logo-blue-deep) 0%,
    var(--color-logo-blue-bright) 100%
  );
  --gradient-brand-accent: linear-gradient(
    135deg,
    var(--color-logo-blue-bright) 0%,
    var(--color-logo-purple) 100%
  );
  --gradient-card-top: linear-gradient(
    90deg,
    #2b7cf8 0%,
    #3d72f6 28%,
    #5a68f2 52%,
    #7350ef 72%,
    #8838f8 100%
  );
  /* 首屏：轻快天蓝自上而下，亮度不变、色相偏 Logo 亮蓝 */
  --gradient-hero-top-scrim: linear-gradient(
    to bottom,
    rgba(24, 96, 232, 0.34) 0%,
    rgba(40, 112, 240, 0.26) 22%,
    rgba(56, 128, 248, 0.18) 42%,
    rgba(72, 144, 252, 0.1) 58%,
    rgba(96, 168, 255, 0.04) 72%,
    transparent 84%
  );
  --gradient-hero-fade: linear-gradient(
    180deg,
    rgba(40, 120, 248, 0.1) 0%,
    rgba(64, 140, 255, 0.14) 30%,
    rgba(88, 160, 255, 0.1) 52%,
    rgba(120, 185, 255, 0.04) 70%,
    rgba(228, 240, 255, 0.52) 88%,
    rgba(248, 252, 255, 0.9) 100%
  );
  --gradient-hero-text-scrim: radial-gradient(
    ellipse 108% 78% at 50% 42%,
    rgba(32, 104, 235, 0.16) 0%,
    rgba(56, 132, 248, 0.08) 50%,
    transparent 78%
  );
  --gradient-header-top: linear-gradient(
    to bottom,
    rgba(16, 88, 220, 0.44) 0%,
    rgba(40, 112, 240, 0.26) 45%,
    rgba(72, 148, 255, 0.1) 70%,
    transparent 100%
  );

  --shadow-sm: 0 1px 3px rgba(0, 56, 200, 0.05);
  --shadow-md: 0 12px 36px rgba(0, 56, 200, 0.08);
  --shadow-lg: 0 24px 56px rgba(0, 56, 200, 0.1);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --font-sans: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 84px;
  --sat: env(safe-area-inset-top, 0px);
  --sar: env(safe-area-inset-right, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --header-stack: calc(var(--header-h) + var(--sat));
  --focus-ring: 0 0 0 3px rgba(40, 120, 248, 0.38);

  /* 全屏区块（核心服务 / 技术设备等）统一尺度 */
  --panel-max-width: min(1340px, 96vw);
  --panel-pad-block: clamp(1.15rem, 2.6vh, 2rem);
  --panel-pad-inline: clamp(1.2rem, 2.4vw, 2rem);
  --panel-head-gap: clamp(1.2rem, 2.4vh, 1.85rem);
  --panel-inner-gap: clamp(0.85rem, 1.5vh, 1.15rem);
  --panel-body-offset: clamp(0.65rem, 1.5vh, 1rem);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --ease-out: linear;
    --ease-soft: linear;
  }
}