/**
 * 前台 UX 增强层（ProMax）
 * 在主题 CSS 之后加载：统一可聚焦环、空状态、动效节奏与阅读版式。
 */

:root {
  --ux-ring: 0 0 0 3px rgba(37, 99, 235, 0.28);
  --ux-ring-offset: 2px;
  --ux-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ux-duration: 0.22s;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* —— 可访问性：键盘焦点 —— */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  outline: none;
  box-shadow: var(--ux-ring);
}

/* —— 主内容入场 —— */
.gm35-ws-scroll > .gm35-ws-inner {
  animation: frontUxPageIn 0.42s var(--ux-ease) both;
}

@keyframes frontUxPageIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* —— 面包屑 —— */
.gm35-breadcrumb {
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(226, 232, 240, 0.85);
  backdrop-filter: blur(8px);
}

.gm35-breadcrumb a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 600;
}

.gm35-breadcrumb a:hover {
  text-decoration: underline;
}

.gm35-breadcrumb span {
  color: #64748b;
  font-weight: 500;
}

/* —— 空状态 —— */
.front-ux-empty,
.gm35-empty {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: var(--gm35-soft-r-lg, 22px);
  background: linear-gradient(168deg, rgba(255, 255, 255, 0.92) 0%, rgba(241, 245, 249, 0.75) 100%);
  border: 1px dashed rgba(148, 163, 184, 0.45);
  color: #64748b;
}

.front-ux-empty-icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 0.75rem;
  opacity: 0.85;
}

.front-ux-empty-title {
  font-weight: 700;
  color: #334155;
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

/* —— 资讯/列表行 —— */
.gm35-news-item {
  transition: background var(--ux-duration) var(--ux-ease), transform var(--ux-duration) var(--ux-ease);
  border-radius: 12px;
  margin: 0 -6px;
  padding-left: 6px !important;
  padding-right: 6px !important;
}

.gm35-news-item:hover {
  background: rgba(99, 102, 241, 0.06);
}

.gm35-news-summary {
  margin: -4px 6px 10px;
  padding: 0 4px 0 8px;
  border-left: 3px solid rgba(37, 99, 235, 0.25);
  font-size: 0.875rem;
  color: #64748b;
  line-height: 1.5;
}

/* —— 正文阅读 —— */
.article-rich,
.article-content .article-rich {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #1e293b;
}

.article-rich p {
  margin-bottom: 1rem;
}

.article-rich h2,
.article-rich h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.65rem;
  font-weight: 700;
  color: #0f172a;
}

.article-rich img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  margin: 0.75rem 0;
}

.article-rich a {
  color: #2563eb;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* —— 回到顶部（通用） —— */
.front-ux-totop {
  position: fixed;
  right: 18px;
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  z-index: 1080;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  background: linear-gradient(168deg, #ffffff 0%, #eef2ff 100%);
  color: #1d4ed8;
  font-size: 1.1rem;
  line-height: 1;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 12px 36px -8px rgba(79, 70, 229, 0.35);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--ux-duration) var(--ux-ease), opacity var(--ux-duration);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.front-ux-totop.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.front-ux-totop:hover {
  transform: translateY(-2px);
}

.gm35-body .front-ux-totop {
  bottom: calc(22px + env(safe-area-inset-bottom, 0px));
}

/* —— gm35 已有回到顶部按钮：统一样式 —— */
.gm35-ws-totop {
  border-radius: 14px !important;
  border: 1px solid rgba(255, 255, 255, 0.85) !important;
  background: linear-gradient(168deg, #ffffff 0%, #eef2ff 100%) !important;
  color: #1d4ed8 !important;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 12px 36px -8px rgba(79, 70, 229, 0.3) !important;
  transition: opacity 0.2s ease, transform 0.2s var(--ux-ease) !important;
}

.gm35-ws-totop:hover {
  transform: translateY(-2px);
}

/* —— 默认主题：顶部移动搜索 —— */
.front-mobile-search {
  display: none;
}

@media (max-width: 767.98px) {
  .front-mobile-search {
    display: block;
    width: 100%;
    max-width: 100%;
  }

  .nav-body main > header.nav-topbar {
    flex-wrap: wrap;
    align-items: flex-start !important;
  }
}

/* —— 默认首页区块标题 —— */
.nav-body .nav-term .h5.border-bottom {
  border-bottom-color: rgba(226, 232, 240, 0.95) !important;
  padding-bottom: 0.65rem !important;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-body .front-hero {
  position: relative;
  overflow: hidden;
}

.nav-body .front-hero::after {
  content: "";
  position: absolute;
  inset: -40% 50% auto -20%;
  height: 120%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22) 0%, transparent 65%);
  pointer-events: none;
}