/* ============================================
   Xiniu Construction Machinery - Export Case List Page Styles
   ============================================ */

/* ===== Export Case Hero ===== */
.export-case-hero {
  position: relative;
  width: 100%;
  height: 680px;
  margin-top: var(--header-height);
  overflow: visible;
}

.export-case-hero-bg {
  position: absolute;
  inset: 0;
}

.export-case-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.export-case-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
}

.export-case-hero-content {
  position: relative;
  z-index: 2;
  height: 560px;
  display: flex;
  align-items: center;
  padding: 0 260px;
}

.export-case-hero-content .container {
  max-width: none;
  margin: 0;
  padding: 0;
}

.export-case-hero-content h1 {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-text-white);
  line-height: 1;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* ===== Featured Case (embedded in hero) ===== */
.featured-case-wrap {
  position: relative;
  left: 0;
  right: 0;
  z-index: 10;
  margin-top: -5px;
  padding: 0 260px;
}

.featured-case-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  background-color: var(--color-bg);
  padding: var(--space-xl);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  max-width: none;
  margin: 0;
}

.featured-case-content {
  order: 2;
  padding: var(--space-lg) 0;
}

.featured-case-img {
  order: 1;
  overflow: hidden;
  width: 100%;
  height: 280px;
  flex-shrink: 0;
}

.featured-case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-case-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
}

.featured-case-content h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: #0F0F0F;
  line-height: 1.4;
  margin-bottom: var(--space-md);
}

.featured-case-content p {
  font-size: var(--text-sm);
  color: #666666;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* ===== Filter Section ===== */
.filter-section {
  padding: 0 260px 40px;
  background-color: var(--color-bg);
  position: relative;
  z-index: 20;
  margin-top: 40px;
}

.filter-container {
  max-width: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid #DBDBDB;
  border-bottom: 1px solid #DBDBDB;
  margin-top: 28px;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 12px 0;
}

.filter-row + .filter-row {
  border-top: none;
}

.filter-label {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 160px;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 20px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background-color: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  position: relative;
}

.filter-tag:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 14px;
  background-color: var(--color-border-light);
}

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

.filter-tag.active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-primary);
  background-color: transparent;
  font-weight: 600;
}

/* ===== Case List Section ===== */
.case-list-section {
  padding: 0 260px var(--space-3xl);
  background-color: var(--color-bg);
}

.case-list-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: none;
  margin: 0;
  padding: 0;
}

.case-list-card {
  background-color: var(--color-bg);
  border: 1px solid #DBDBDB;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.case-list-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.case-list-img {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  padding: 20px;
}

.case-list-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-list-card:hover .case-list-img img {
  /* Removed scale effect */
}

.case-list-body {
  padding: 0 20px 20px;
}

.case-list-meta {
  display: flex;
  gap: 8px;
  margin-bottom: var(--space-sm);
}

.case-list-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 2px;
}

.case-list-tag-cat {
  color: #6E95B4;
  background-color: #EEF8FF;
}

.case-list-tag-region {
  color: #6E95B4;
  background-color: #EEF8FF;
}

.case-list-body h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.case-list-body p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

/* Case small button */
.btn-case-sm {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid #0F0F0F;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-case-sm:hover {
  background-color: #C4301A;
  border-color: #C4301A;
  color: var(--color-text-white);
}

.btn-case-sm svg {
  width: 12px;
  height: 12px;
}

/* ===== Pagination ===== */
.pagination-section {
  padding: 0 260px var(--space-3xl);
  background-color: var(--color-bg);
}

.pagination-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  max-width: none;
  margin: 0;
  padding: 0;
}

.pagination-prev,
.pagination-next {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-prev:hover,
.pagination-next:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-numbers {
  display: flex;
  align-items: center;
  gap: 4px;
}

.pagination-numbers a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.pagination-numbers a:hover {
  border-color: var(--color-border);
}

.pagination-numbers a.active {
  background-color: var(--color-bg-alt);
  border-color: var(--color-border);
}

/* ============================================
   Case Detail Modal
   ============================================ */
.case-detail-modal {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) + 100);
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.case-detail-modal.active {
  opacity: 1;
  visibility: visible;
}

/* Close button - top right, white circle with X */
.case-modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.case-modal-close:hover {
  transform: scale(1.08);
  background-color: #f5f5f5;
}

.case-modal-close svg {
  width: 20px;
  height: 20px;
  color: #333;
}

/* Modal wrapper - flex row with arrows beside image */
.case-modal-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
  max-width: 1100px;
  padding: 0 24px;
}

/* Navigation arrows - now inside wrapper, beside image */
.case-modal-nav {
  position: static;
  transform: none;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  transition: background-color 0.2s ease, transform 0.2s ease;
  color: #fff;
}

.case-modal-nav:hover {
  background-color: #CC290F;
  transform: scale(1.05);
}

.case-modal-nav svg {
  width: 22px;
  height: 22px;
}

/* Modal content area */
.case-modal-content {
  flex: 1;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Image wrapper */
.case-modal-image-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.case-modal-image-wrap img {
  max-width: 100%;
  max-height: 55vh;
  object-fit: contain;
  display: block;
}

/* Info area below image */
.case-modal-info {
  width: 100%;
  text-align: center;
  padding: 0 20px;
}

.case-modal-info h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 12px;
}

.case-modal-info p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   Responsive - Modal
   ============================================ */
@media (max-width: 1023px) {
  .case-modal-wrapper {
    gap: 8px;
    padding: 0 16px;
  }

  .case-modal-nav {
    width: 40px;
    height: 40px;
  }

  .case-modal-nav svg {
    width: 18px;
    height: 18px;
  }

  .case-modal-image-wrap img {
    max-height: 45vh;
  }

  .case-modal-info h3 {
    font-size: 18px;
  }

  .case-modal-info p {
    font-size: 14px;
  }
}

@media (max-width: 767px) {
  .case-detail-modal {
    align-items: flex-start;
    padding-top: 60px;
  }

  .case-modal-wrapper {
    gap: 4px;
    padding: 0 8px;
  }

  .case-modal-content {
    max-height: calc(100vh - 80px);
  }

  .case-modal-close {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
  }

  .case-modal-close svg {
    width: 16px;
    height: 16px;
  }

  .case-modal-nav {
    width: 36px;
    height: 36px;
  }

  .case-modal-image-wrap img {
    max-height: 40vh;
  }

  .case-modal-info h3 {
    font-size: 16px;
  }

  .case-modal-info p {
    font-size: 13px;
  }
}

/* ============================================
   Responsive - 超大屏（2K/4K）：≥ 1920px
   ============================================ */
@media (min-width: 1920px) {
  .export-case-hero-content {
    padding: 0 320px;
  }

  .export-case-hero-content h1 {
    font-size: 56px;
  }

  .featured-case-wrap {
    padding: 0 320px;
  }

  .featured-case-container {
    margin: 0;
    gap: var(--space-3xl);
    padding: var(--space-2xl);
  }

  .featured-case-content h2 {
    font-size: 32px;
  }

  .featured-case-content p {
    font-size: var(--text-base);
  }

  .featured-case-img {
    height: 320px;
  }

  .filter-section {
    padding: 0 320px 40px;
    z-index: 20;
    margin-top: 370px;
  }

  .case-list-section {
    padding: 0 320px var(--space-3xl);
  }

  .pagination-section {
    padding: 0 320px var(--space-3xl);
  }
}

/* ============================================
   Responsive - 桌面显示器：1280px — 1919px
   ============================================ */
@media (max-width: 1919px) and (min-width: 1280px) {
  .export-case-hero-content {
    padding: 0 200px;
  }

  .export-case-hero-content h1 {
    font-size: 48px;
  }

  .featured-case-wrap {
    padding: 0 200px;
  }

  .featured-case-container {
    margin: 0;
  }

  .filter-section {
    padding: 0 200px 40px;
    z-index: 20;
    margin-top: 300px;
  }

  .case-list-section {
    padding: 0 200px var(--space-3xl);
  }

  .pagination-section {
    padding: 0 200px var(--space-3xl);
  }
}

/* ============================================
   Responsive - 平板横屏/小屏笔记本：1024px — 1279px
   ============================================ */
@media (max-width: 1279px) and (min-width: 1024px) {
  .export-case-hero {
    height: 600px;
  }

  .export-case-hero-content {
    padding: 0 100px;
    height: 480px;
  }

  .export-case-hero-content h1 {
    font-size: 42px;
  }

  .featured-case-wrap {
    padding: 0 100px;
  }

  .featured-case-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin: 0;
    padding: var(--space-xl);
  }

  .featured-case-content h2 {
    font-size: 24px;
  }

  .featured-case-content p {
    font-size: 13px;
  }

  .featured-case-img {
    height: 240px;
  }

  .filter-section {
    padding: 0 100px 40px;
    z-index: 20;
    margin-top: 240px;
  }

  .filter-label {
    min-width: 140px;
  }

  .case-list-section {
    padding: 0 100px var(--space-3xl);
  }

  .case-list-container {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }

  .pagination-section {
    padding: 0 100px var(--space-3xl);
  }
}

/* ============================================
   Responsive - 平板竖屏：768px — 1023px
   ============================================ */
@media (max-width: 1023px) and (min-width: 768px) {
  .export-case-hero {
    height: 520px;
  }

  .export-case-hero-content {
    padding: 0 40px;
    height: 400px;
  }

  .export-case-hero-content h1 {
    font-size: 36px;
  }

  .featured-case-wrap {
    position: relative;
    margin-top: -80px;
    left: 0;
    right: 0;
    padding: 0 40px;
  }

  .featured-case-wrap {
    padding: 0 40px;
  }

  .featured-case-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin: 0;
    padding: var(--space-lg);
  }

  .featured-case-content h2 {
    font-size: 20px;
  }

  .featured-case-content p {
    font-size: 13px;
    line-height: 1.5;
  }

  .featured-case-img {
    height: 200px;
  }

  .filter-section {
    padding: 0 40px 40px;
    z-index: 20;
    margin-top: 200px;
  }

  .filter-label {
    min-width: 130px;
    font-size: var(--text-sm);
  }

  .filter-tag {
    padding: 6px 16px;
  }

  .case-list-section {
    padding: 0 40px var(--space-2xl);
  }

  .case-list-container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .pagination-section {
    padding: 0 40px var(--space-2xl);
  }
}

/* ============================================
   Responsive - 手机：< 768px
   ============================================ */
@media (max-width: 767px) {
  .export-case-hero {
    height: auto;
    margin-top: var(--header-height);
    overflow: visible;
  }

  .export-case-hero-bg {
    display: none;
  }

  .export-case-hero-overlay {
    display: none;
  }

  .export-case-hero-content {
    position: relative;
    padding: 0 16px;
    height: 160px;
    background: url('../images/hero-bg-mobile.jpg') center top/cover no-repeat;
  }

  .export-case-hero-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 100%);
    z-index: 0;
  }

  .export-case-hero-content .container {
    position: relative;
    z-index: 1;
  }

  .export-case-hero-content h1 {
    font-size: var(--text-2xl);
  }

  .featured-case-wrap {
    position: relative;
    margin-top: -20px;
    left: 0;
    right: 0;
    padding: 0 16px;
  }

  .featured-case-container {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin: 0 16px;
    padding: var(--space-md);
    position: relative;
    z-index: 5;
  }

  .featured-case-img {
    order: -1;
    width: 100%;
    height: auto;
    aspect-ratio: 16/10;
  }

  .featured-case-content {
    padding: 0;
  }

  .featured-case-content h2 {
    font-size: var(--text-lg);
    line-height: 1.4;
  }

  .featured-case-content p {
    font-size: var(--text-sm);
    line-height: 1.6;
  }

  .filter-section {
    padding: 0 16px 32px;
    z-index: 20;
    margin-top: 100px;
  }

  .filter-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .filter-label {
    min-width: auto;
    font-size: var(--text-sm);
  }

  .filter-tags {
    gap: 4px;
  }

  .filter-tag {
    padding: 4px 12px;
    font-size: var(--text-xs);
  }

  .filter-tag:not(:last-child)::after {
    display: none;
  }

  .case-list-section {
    padding: 0 16px var(--space-xl);
  }

  .case-list-container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .pagination-section {
    padding: 0 16px var(--space-xl);
  }

  .pagination-numbers a {
    min-width: 28px;
    height: 28px;
    padding: 0 6px;
    font-size: var(--text-xs);
  }
}