/* =====================================================================
 * redesign-module.css — 21 个 mod-*.html 模块详情页统一视觉升级
 * 与首页 metric-card / product-card 精致风格对齐
 * 设计语言：圆角 var(--r-xl) / hover lift -8~-10px /
 *           顶部 ::before scaleX 品牌色横条 /
 *           ::after radial-gradient 光晕 /
 *           过渡 cubic-bezier(0.16, 1, 0.3, 1) 0.4~0.55s
 * 仅级联覆盖 module-page.css，不改 HTML / 其他 CSS
 * ===================================================================== */

:root {
  --mod-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --mod-t-card: 0.45s;
  --mod-t-soft: 0.55s;
}

/* ============== ① .mod-hero 顶部区精致化 ============== */

/* hero icon 立体感：多层投影 + hover 微动 */
.mod-hero-icon {
  border-radius: var(--r-xl);
  box-shadow:
    0 18px 36px -10px rgba(37, 99, 235, 0.55),
    0 8px 16px -4px rgba(6, 182, 212, 0.30),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    inset 0 -2px 8px rgba(0, 0, 0, 0.18);
  transition: transform var(--mod-t-soft) var(--mod-ease),
              box-shadow var(--mod-t-soft) var(--mod-ease);
}
.mod-hero-icon::after {
  /* 高光 */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(160deg, rgba(255,255,255,0.22), transparent 55%);
  pointer-events: none;
}
.mod-hero-icon { position: relative; }
.mod-hero-icon:hover {
  transform: translateY(-3px) rotate(-3deg);
  box-shadow:
    0 24px 48px -10px rgba(37, 99, 235, 0.65),
    0 10px 20px -4px rgba(6, 182, 212, 0.40),
    inset 0 1px 0 rgba(255, 255, 255, 0.30);
}

/* hero stats 数字渐变 + 微 drop-shadow */
.mod-hero-stats .v {
  background: linear-gradient(135deg, var(--c-accent-400) 0%, var(--c-accent-500) 55%, #fb923c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 12px rgba(245, 158, 11, 0.35));
  letter-spacing: -0.025em;
}

/* big-letter 大字水印增强 drop-shadow + 微微浮动 */
.mod-hero-visual .big-letter {
  filter: drop-shadow(0 12px 32px rgba(96, 165, 250, 0.25))
          drop-shadow(0 2px 8px rgba(255, 255, 255, 0.10));
  background: linear-gradient(135deg, rgba(255,255,255,0.42) 0%, rgba(96,165,250,0.10) 60%, rgba(34,211,238,0.06) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: modBigLetterFloat 8s ease-in-out infinite;
}
@keyframes modBigLetterFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ============== ② .cap-card 核心能力 6 卡升级 ============== */

.cap-grid { gap: var(--sp-6); }

.cap-card {
  border-radius: var(--r-xl);
  padding: var(--sp-7) var(--sp-6);
  isolation: isolate;
  transition: transform var(--mod-t-card) var(--mod-ease),
              box-shadow var(--mod-t-card) var(--mod-ease),
              border-color 0.3s ease;
}

/* 覆盖原 ::before 竖条为顶部 4px 横条（scaleX 0→1） */
.cap-card::before {
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--mod-t-soft) var(--mod-ease);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
}

/* 新增 hover 渐变光晕（右上角放射光） */
.cap-card::after {
  content: "";
  position: absolute;
  top: -120px; right: -120px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.10) 0%, rgba(6, 182, 212, 0.06) 40%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity var(--mod-t-soft) var(--mod-ease),
              transform var(--mod-t-soft) var(--mod-ease);
  z-index: -1;
}

.cap-card:hover {
  transform: translateY(-10px);
  box-shadow:
    0 24px 48px -12px rgba(15, 37, 71, 0.18),
    0 8px 16px -4px rgba(37, 99, 235, 0.12);
  border-color: var(--c-primary-200);
}
.cap-card:hover::before { transform: scaleX(1); }
.cap-card:hover::after { opacity: 1; transform: scale(1); }

/* icon 立体感 + hover 放大 + 微旋转 */
.cap-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-primary-50) 0%, #e0ecff 100%);
  color: var(--c-primary-500);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    0 4px 10px -2px rgba(37, 99, 235, 0.12);
  transition: transform var(--mod-t-card) var(--mod-ease),
              background var(--mod-t-card) var(--mod-ease),
              color var(--mod-t-card) var(--mod-ease),
              box-shadow var(--mod-t-card) var(--mod-ease);
}
.cap-card:hover .cap-icon {
  background: var(--grad-primary);
  color: #fff;
  transform: scale(1.15) rotate(8deg);
  box-shadow:
    0 12px 24px -6px rgba(37, 99, 235, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.30);
}
.cap-card:hover h3 { color: var(--c-primary-700); }
.cap-card h3 { transition: color 0.3s ease; }

/* ============== ③ .mod-related-card 底部相关推荐升级 ============== */

.mod-related { gap: var(--sp-5); }

.mod-related-card {
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-5);
  isolation: isolate;
  position: relative;
  overflow: hidden;
  transition: transform var(--mod-t-card) var(--mod-ease),
              box-shadow var(--mod-t-card) var(--mod-ease),
              border-color 0.3s ease,
              background var(--mod-t-card) var(--mod-ease);
}
.mod-related-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--mod-t-soft) var(--mod-ease);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
}
.mod-related-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(37,99,235,0.04) 0%, rgba(6,182,212,0.03) 100%);
  opacity: 0;
  transition: opacity var(--mod-t-soft) var(--mod-ease);
  pointer-events: none;
  z-index: -1;
}
.mod-related-card:hover {
  transform: translateY(-8px);
  border-color: var(--c-primary-200);
  box-shadow: 0 20px 36px -12px rgba(15, 37, 71, 0.16),
              0 6px 12px -4px rgba(37, 99, 235, 0.10);
  color: var(--c-primary-600);
}
.mod-related-card:hover::before { transform: scaleX(1); }
.mod-related-card:hover::after { opacity: 1; }

.mod-related-card .ic {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-primary-50) 0%, #e0ecff 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8),
              0 4px 10px -2px rgba(37, 99, 235, 0.10);
  transition: transform var(--mod-t-card) var(--mod-ease),
              background var(--mod-t-card) var(--mod-ease),
              color var(--mod-t-card) var(--mod-ease),
              box-shadow var(--mod-t-card) var(--mod-ease);
}
.mod-related-card:hover .ic {
  background: var(--grad-primary);
  color: #fff;
  transform: scale(1.12) rotate(-6deg);
  box-shadow: 0 10px 22px -6px rgba(37, 99, 235, 0.45),
              inset 0 1px 0 rgba(255,255,255,0.28);
}
.mod-related-card h5 { transition: color 0.3s ease; font-size: var(--fs-base); }
.mod-related-card:hover h5 { color: var(--c-primary-700); }

/* ============== ④ 减少动画偏好 ============== */
@media (prefers-reduced-motion: reduce) {
  .mod-hero-icon, .mod-hero-visual .big-letter,
  .cap-card, .cap-card::before, .cap-card::after, .cap-icon,
  .mod-related-card, .mod-related-card::before, .mod-related-card::after, .mod-related-card .ic {
    transition: none !important;
    animation: none !important;
  }
}