/* ==========================================================================
   经典案例 专属样式
   ========================================================================== */

/* 案例筛选 */
.cases-filter {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.cases-filter-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-3) 0;
}

.cases-filter-row + .cases-filter-row {
  border-top: 1px solid var(--color-border-light);
}

.filter-label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
  flex-shrink: 0;
  min-width: 56px;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-soft);
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-tag.active {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* 案例分类筛选 tab（全部 / 软件系统 / 物资工程） */
.case-filter {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: -16px 0 32px;
}

.case-filter .filter-tag {
  min-width: 108px;
  justify-content: center;
  padding: 9px 24px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  background-color: #fff;
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.case-filter .filter-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.case-filter .filter-tag.active {
  color: #fff;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 6px 16px rgba(230, 0, 0, 0.22);
}

/* 被筛除的卡片 */
.case-card-large.is-filtered-out {
  display: none;
}

/* 案例列表 */
.cases-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.case-card-large {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
}

.case-card-large:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.case-card-large .case-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  padding: 10px;
}

/* 案例实拍/界面配图：内嵌式（四周留白 + 圆角），统一色温与亮度 */
.case-card-large .case-image > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
  filter: saturate(0.95) contrast(1.02) brightness(1.03);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-slow);
}

.case-card-large:hover .case-image > img {
  transform: scale(1.03);
}

/* 界面截图类：完整显示不裁切（避免切掉左右面板），两侧补深色底 */
.case-card-large .case-image > img.fit-contain {
  object-fit: contain;
  background-color: #0A1420;
}

/* 浅色界面截图：补白底，与界面自身浅色背景无缝 */
.case-card-large .case-image > img.fit-contain--light {
  object-fit: contain;
  background-color: #FFFFFF;
}

.case-card-large:hover .case-image > img.fit-contain,
.case-card-large:hover .case-image > img.fit-contain--light {
  transform: none;
}

/* 悬停遮罩：取消旧版蓝色蒙版（无按钮后只会压暗画面） */
.case-card-large .case-image::before {
  display: none;
}

/* 去掉查看详情按钮 */

.case-card-large .case-tag {
  position: absolute;
  display: inline-block;
  right: 22px;
  bottom: 22px;
  padding: 4px 12px;
  background-color: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--color-primary);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(0, 0, 0, 0.06);
  font-size: 12px;
  letter-spacing: 0.3px;
  border-radius: 100px;
  z-index: 3;
  font-weight: var(--fw-medium);
}

/* 占位块品牌化（仅案例页）：浅灰底 + 线框图标 + 项目名 */
.cases-list .placeholder-image {
  background: #F4F6F9;
  border-radius: 8px;
  flex-direction: column;
  gap: 8px;
  color: #9AA4B4;
  box-shadow: inset 0 0 0 1px #E8ECF2;
}

.cases-list .placeholder-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 34%, rgba(230, 0, 0, 0.05), transparent 62%);
  background-image: none;
  opacity: 1;
}

.cases-list .placeholder-image::after {
  content: '';
  position: relative;
  z-index: 1;
  order: -1;
  margin-bottom: 2px;
  width: 40px;
  height: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B3BBC9' stroke-width='1.1' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2.5' y='4' width='19' height='12.5' rx='2'/%3E%3Cpath d='M8.5 20.5h7M12 16.5v4'/%3E%3Cpath d='M6.5 12.5l2.6-2.6 2.2 2.2 2.4-2.4 3.8 3.8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.cases-list .placeholder-image span {
  position: relative;
  z-index: 1;
  background-color: transparent;
  padding: 0;
  font-size: 12px;
  letter-spacing: 0.5px;
  color: #9AA4B4;
}

.case-card-large .case-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-card-large .case-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-3);
  color: var(--color-text);
  line-height: 1.4;
}

.case-card-large .case-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.case-card-large .case-meta > span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.case-card-large .case-meta svg {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
}

.case-card-large .case-desc {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-4);
  flex: 1;
}

.case-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.case-highlight {
  display: inline-block;
  padding: 2px var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-primary);
  background-color: rgba(230, 0, 0, 0.08);
  border-radius: var(--radius-sm);
}

.case-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
}

.case-stat-mini {
  text-align: center;
}

.case-stat-mini .num {
  display: block;
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  line-height: 1;
}

.case-stat-mini .label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* 案例 Hero */
.cases-hero {
  position: relative;
  height: 440px;
  padding: 0;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0F1B2D 0%, #1A2A4A 100%);
  color: #fff;
  overflow: hidden;
}

.cases-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(230, 0, 0, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 102, 204, 0.2) 0%, transparent 40%);
}

.cases-hero .container {
  position: relative;
  z-index: 1;
}

.cases-hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-12);
}

.cases-hero-text h2 {
  color: #fff;
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-3);
}

.cases-hero-text p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-md);
  line-height: 1.8;
  max-width: 600px;
}

.cases-hero-stats {
  display: flex;
  gap: var(--space-8);
  padding: var(--space-6) var(--space-8);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
}

.cases-hero-stat {
  text-align: center;
}

.cases-hero-stat .num {
  display: block;
  font-size: 36px;
  font-weight: var(--fw-bold);
  color: #fff;
  line-height: 1;
}

.cases-hero-stat .label {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
  margin-top: var(--space-2);
}

@media (max-width: 991px) {
  .cases-hero-content { grid-template-columns: 1fr; }
  .cases-hero-stats { justify-content: space-between; }
  .cases-hero { height: 400px; }
}

@media (max-width: 600px) {
  .cases-hero-stats { flex-wrap: wrap; gap: var(--space-3); }
  .cases-hero-stat { flex: 1 1 30%; }
  .cases-hero-stat .num { font-size: 24px; }
  .cases-hero { height: 320px; }
  .cases-list { grid-template-columns: 1fr; }
}

/* 合作客户 logo 墙 */
/* 合作客户 logo 墙的样式已上移到 components.css（首页与案例页共用） */