/**
 * RI-首页模块 : 四项优势横条
 * 独立CSS文件，支持浏览器缓存和CDN缓存
 * 颜色通过CSS变量动态设置：--ri-theme, --ri-title, --ri-desc, --ri-icon
 */

/* 容器 */
.ri-benefits-wrap {
  width: 100%;
}

/* 布局：4→3→2 列 */
.ri-benefits-wrap .ri-benefits {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  align-items: center;
}

@media (max-width: 1280px) {
  .ri-benefits-wrap .ri-benefits {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .ri-benefits-wrap .ri-benefits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .ri-benefits-wrap .ri-benefits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 10px;
  }
}

/* ====== 卡片：白底 + 柔边阴影 ====== */
.ri-benefits-wrap .benefit-item {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  border-radius: 14px;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, .06);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, filter .25s ease;
  will-change: transform;
}

.ri-benefits-wrap .benefit-item:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--ri-theme) 40%, transparent 60%);
  box-shadow: 0 8px 24px rgba(127, 149, 255, .15);
}

.ri-benefits-wrap .benefit-item:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ri-theme) 25%, transparent);
}

/* ====== 图标：电光圈 + 涟漪 ====== */
.ri-benefits-wrap .benefit-icon {
  --s: 46px;
  position: relative;
  overflow: visible;
  width: var(--s);
  height: var(--s);
  flex: 0 0 var(--s);
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background:
    radial-gradient(60% 60% at 50% 35%, color-mix(in srgb, var(--ri-theme) 22%, #fff 0%) 0%, transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--ri-theme) 88%, #000 0%) 0%, color-mix(in srgb, var(--ri-theme) 60%, #000 0%) 100%);
  transition: transform .3s ease, box-shadow .3s ease, filter .3s ease;
}

.ri-benefits-wrap .benefit-icon i {
  font-size: 18px;
  line-height: 1;
  color: var(--ri-icon);
  transition: transform .35s ease, filter .35s ease;
}

.ri-benefits-wrap .benefit-icon::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: conic-gradient(from 0deg, transparent 0 70%, color-mix(in srgb, var(--ri-theme) 65%, #fff 0%) 80%, transparent 100%);
  mask: radial-gradient(closest-side, transparent calc(100% - 3px), #000 100%);
  opacity: 0;
  transition: opacity .25s ease;
}

.ri-benefits-wrap .benefit-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle, color-mix(in srgb, var(--ri-theme) 40%, #fff 0%) 0%, transparent 70%);
  opacity: 0;
  transform: scale(.6);
  pointer-events: none;
}

/* 悬停特效 */
.ri-benefits-wrap .benefit-item:hover .benefit-icon {
  transform: translateY(-1px) scale(1.05);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--ri-theme) 30%, transparent);
}

.ri-benefits-wrap .benefit-item:hover .benefit-icon i {
  transform: translateY(-1px);
}

.ri-benefits-wrap .benefit-item:hover .benefit-icon::before {
  opacity: .85;
  animation: ri-benefits-spin 1.1s linear infinite;
}

.ri-benefits-wrap .benefit-item:hover .benefit-icon::after {
  animation: ri-benefits-ripple .8s ease-out 1;
}

/* 触屏按下 */
.ri-benefits-wrap .benefit-item:active .benefit-icon {
  transform: scale(.96);
}

/* 文本 */
.ri-benefits-wrap .benefit-text {
  min-width: 0;
}

.ri-benefits-wrap .benefit-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 4px;
  color: var(--ri-title);
}

.ri-benefits-wrap .benefit-desc {
  font-size: 13px;
  color: var(--ri-desc);
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 小屏优化 */
@media (max-width: 768px) {
  .ri-benefits-wrap .benefit-item {
    padding: 10px 10px;
  }

  .ri-benefits-wrap .benefit-icon {
    --s: 34px;
  }

  .ri-benefits-wrap .benefit-icon i {
    font-size: 14px;
  }

  .ri-benefits-wrap .benefit-title {
    font-size: 15px;
  }

  .ri-benefits-wrap .benefit-desc {
    font-size: 12px;
    white-space: normal;
  }
}

@media (max-width: 360px) {
  .ri-benefits-wrap .benefit-icon {
    --s: 30px;
  }

  .ri-benefits-wrap .benefit-icon i {
    font-size: 12px;
  }

  .ri-benefits-wrap .benefit-title {
    font-size: 14px;
  }

  .ri-benefits-wrap .benefit-desc {
    font-size: 11px;
  }
}

/* 动画关键帧 */
@keyframes ri-benefits-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes ri-benefits-ripple {
  0% {
    opacity: .35;
    transform: scale(.6);
  }
  70% {
    opacity: .15;
    transform: scale(1.25);
  }
  100% {
    opacity: 0;
    transform: scale(1.45);
  }
}