/**
 * AKSRT Menu Decorations
 *
 * 菜单图标、徽章、多列下拉、图文卡片子菜单样式。
 * 所有选择器均带 aksrt- 或 .site-nav 命名空间。
 */

/* ========== 菜单图标 ========== */
.nav-desktop .menu-item > a .menu-icon,
.nav-desktop .menu-item > a > i:first-child {
  display: inline-flex;
  align-items: center;
  margin-right: 6px;
  font-size: 14px;
  opacity: 0.75;
  transition: opacity 0.2s ease;
}

.nav-desktop .menu-item:hover > a .menu-icon,
.nav-desktop .menu-item:hover > a > i:first-child {
  opacity: 1;
}

/* ========== 菜单徽章 ========== */
.nav-desktop .menu-item > a .menu-badge,
.nav-desktop .menu-item > a .aksrt-menu-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  border-radius: 8px;
  white-space: nowrap;
  vertical-align: middle;
  transform: translateY(-1px);
}

.aksrt-menu-badge--new {
  background: var(--color-primary);
  color: #fff;
}

.aksrt-menu-badge--hot {
  background: #ff4d4f;
  color: #fff;
}

.aksrt-menu-badge--info {
  background: var(--color-info, #1890ff);
  color: #fff;
}

.aksrt-menu-badge--success {
  background: var(--color-success, #52c41a);
  color: #fff;
}

.aksrt-menu-badge--warning {
  background: var(--color-warning, #faad14);
  color: #fff;
}

/* ========== Hover 效果 ========== */
/* 下划线效果 */
.aksrt-menu-hover--underline .nav-desktop .menu-item > a {
  position: relative;
}

.aksrt-menu-hover--underline .nav-desktop .menu-item > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.aksrt-menu-hover--underline .nav-desktop .menu-item:hover > a::after,
.aksrt-menu-hover--underline .nav-desktop .menu-item.current-menu-item > a::after,
.aksrt-menu-hover--underline .nav-desktop .menu-item.current_page_item > a::after {
  width: 70%;
}

/* 背景色效果 */
.aksrt-menu-hover--background .nav-desktop .menu-item > a {
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.aksrt-menu-hover--background .nav-desktop .menu-item:hover > a {
  background-color: var(--color-primary-soft, rgba(24, 144, 255, 0.08));
}

/* 文字变色效果 */
.aksrt-menu-hover--color .nav-desktop .menu-item > a {
  transition: color 0.2s ease;
}

.aksrt-menu-hover--color .nav-desktop .menu-item:hover > a {
  color: var(--color-primary);
}

/* ========== 多列 Mega 下拉 ========== */
.nav-desktop .menu-item .aksrt-mega-submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 999;
  min-width: var(--aksrt-mega-width, 480px);
  padding: 16px 20px;
  background: var(--surface-page, #fff);
  border: 1px solid var(--color-line, #e8e8e8);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-desktop .menu-item:hover .aksrt-mega-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.aksrt-mega-submenu__grid {
  display: grid;
  gap: 12px;
}

.aksrt-mega-submenu__grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.aksrt-mega-submenu__grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.aksrt-mega-submenu__grid--cols-4 { grid-template-columns: repeat(4, 1fr); }
.aksrt-mega-submenu__grid--cols-5 { grid-template-columns: repeat(5, 1fr); }

.aksrt-mega-submenu__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--color-ink);
  transition: background-color 0.15s ease;
}

.aksrt-mega-submenu__item:hover {
  background-color: var(--color-primary-soft, rgba(24, 144, 255, 0.08));
}

.aksrt-mega-submenu__item-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--color-primary-soft, rgba(24, 144, 255, 0.08));
  color: var(--color-primary);
  font-size: 14px;
}

.aksrt-mega-submenu__item-content {
  flex: 1;
  min-width: 0;
}

.aksrt-mega-submenu__item-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
}

.aksrt-mega-submenu__item-desc {
  margin-top: 2px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-tertiary, #8a909c);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== 图文卡片子菜单 ========== */
.nav-desktop .menu-item .aksrt-card-submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 999;
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--surface-page, #fff);
  border: 1px solid var(--color-line, #e8e8e8);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.nav-desktop .menu-item:hover .aksrt-card-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.aksrt-card-submenu__item {
  display: flex;
  flex-direction: column;
  width: var(--aksrt-card-width, 160px);
  text-decoration: none;
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.aksrt-card-submenu__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.aksrt-card-submenu__thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--color-fill, #f5f5f5);
}

.aksrt-card-submenu__body {
  padding: 8px 10px;
}

.aksrt-card-submenu__title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aksrt-card-submenu__desc {
  margin-top: 2px;
  font-size: 11px;
  line-height: 1.4;
  color: var(--text-tertiary, #8a909c);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== 暗色模式适配 ========== */
html.dark .aksrt-mega-submenu,
html.dark .aksrt-card-submenu,
html.dark .aksrt-mega-submenu,
html.dark .aksrt-card-submenu {
  background: var(--surface-page);
  border-color: var(--color-line, #2d2d3f);
}

html.dark .aksrt-mega-submenu__item-title,
html.dark .aksrt-card-submenu__title,
html.dark .aksrt-mega-submenu__item-title,
html.dark .aksrt-card-submenu__title {
  color: var(--color-ink);
}