/* 搜索结果页面样式 */

.kb-search-wrapper {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* 搜索头部 */
.kb-search-header {
  padding: 20px;
  margin-bottom: 0;
  background: linear-gradient(135deg, rgba(24,144,255,0.08) 0%, rgba(24,144,255,0.03) 100%);
  border: 1px solid rgba(24,144,255,0.15);
}

.kb-search-header__content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.kb-search-header__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 24px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(24,144,255,0.25);
}

.kb-search-header__info {
  flex: 1;
  min-width: 0;
}

.kb-search-meta {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.kb-search-meta__keyword {
  color: var(--color-primary);
  font-weight: 700;
}

.kb-search-count {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* 搜索结果列表 */
.kb-search-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 搜索结果项 */
.kb-search-item {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.kb-search-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-primary);
  transform: scaleY(0);
  transition: transform 0.2s ease;
}

.kb-search-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  border-color: var(--color-primary);
}

.kb-search-item:hover::before {
  transform: scaleY(1);
}

.kb-search-item:active {
  transform: translateX(2px);
}

.kb-search-item__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(110,198,177,0.2) 0%, rgba(163,216,244,0.15) 100%);
  display: grid;
  place-items: center;
  font-size: 24px;
  flex-shrink: 0;
}

.kb-search-item__content {
  flex: 1;
  min-width: 0;
}

.kb-search-item__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-search-item__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--color-text-muted);
}

.kb-search-item__category {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 12px;
  background: rgba(24,144,255,0.1);
  color: var(--color-primary);
  font-weight: 500;
}

.kb-search-item__time,
.kb-search-item__source {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.kb-search-item__arrow {
  font-size: 20px;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform 0.2s ease, color 0.2s ease;
}

.kb-search-item:hover .kb-search-item__arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

/* 加载状态 */
.kb-search-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  text-align: center;
}

.kb-search-loading__icon-wrapper {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kb-search-loading__icon {
  font-size: 48px;
  position: relative;
  z-index: 2;
  animation: searchIconPulse 2s ease-in-out infinite;
}

.kb-search-loading__spinner {
  position: absolute;
  top: 0;
  left: 0;
  width: 80px;
  height: 80px;
  border: 3px solid rgba(24,144,255,0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spinnerRotate 1.2s linear infinite;
}

@keyframes spinnerRotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes searchIconPulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(0.9);
  }
}

.kb-search-loading__text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 28px;
}

.kb-search-loading__dots {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  width: 24px;
  justify-content: flex-start;
}

.kb-search-loading__dots span {
  display: inline-block;
  animation: dotBounce 1.4s ease-in-out infinite;
  animation-fill-mode: both;
}

.kb-search-loading__dots span:nth-child(1) {
  animation-delay: 0s;
}

.kb-search-loading__dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.kb-search-loading__dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes dotBounce {
  0%, 80%, 100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

.kb-search-loading__hint {
  font-size: 14px;
  color: var(--color-text-muted);
  animation: hintFade 2s ease-in-out infinite;
}

@keyframes hintFade {
  0%, 100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

/* 空状态 */
.kb-search-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  text-align: center;
}

.kb-search-empty__icon {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.6;
}

.kb-search-empty__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.kb-search-empty__hint {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* 移动端优化 */
@media (max-width: 767px) {
  .kb-search-header {
    padding: 16px;
  }

  .kb-search-header__icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .kb-search-meta {
    font-size: 15px;
  }

  .kb-search-item {
    padding: 14px;
    gap: 12px;
  }

  .kb-search-item__icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .kb-search-item__title {
    font-size: 15px;
    margin-bottom: 6px;
  }

  .kb-search-item__meta {
    font-size: 11px;
    gap: 8px;
  }

  .kb-search-item__arrow {
    font-size: 18px;
  }

  .kb-search-loading {
    padding: 60px 20px;
  }

  .kb-search-loading__icon-wrapper {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
  }

  .kb-search-loading__icon {
    font-size: 40px;
  }

  .kb-search-loading__spinner {
    width: 64px;
    height: 64px;
    border-width: 2px;
  }

  .kb-search-loading__text {
    font-size: 16px;
  }

  .kb-search-loading__hint {
    font-size: 13px;
  }
}

/* 深色模式适配 */
[data-theme="dark"] .kb-search-header {
  background: linear-gradient(135deg, rgba(24,144,255,0.15) 0%, rgba(24,144,255,0.08) 100%);
  border-color: rgba(24,144,255,0.25);
}

[data-theme="dark"] .kb-search-item:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}