:root {
  --primary: #143B32;
  --primary-hover: #0D2B24;
  --primary-rgb: 20, 59, 50;
  --primary-light: #EEF3F0;
  --primary-border: #D1DDD6;
  --accent-sage: #7D8872;
  --accent-sage-light: #F0F4EE;
  --badge-telegram: #2AABEE;
  --badge-wechat: #07C160;
  --badge-pan: #FF7D00;
  --bg-page: #F5F7F5;
  --bg-card: #FFFFFF;
  --text-main: #1A2420;
  --text-secondary: #58685F;
  --text-muted: #87978D;
  --border-color: #E2E8E4;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 6px rgba(20, 59, 50, 0.04);
  --shadow-md: 0 8px 20px rgba(20, 59, 50, 0.06);
  --shadow-lg: 0 18px 40px rgba(20, 59, 50, 0.1);
  --max-w: 740px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  padding: 24px 16px 80px;
}

/* Container */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Header Area */
.site-header {
  padding: 20px 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background-color: var(--primary-light);
  padding: 6px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}

.brand-wrapper:hover .brand-logo {
  transform: scale(1.05) rotate(-2deg);
}

.brand-logo img, .brand-logo svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--primary);
  line-height: 1.1;
}

.brand-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--accent-sage);
  margin-top: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.btn-header:hover {
  background: var(--primary);
  color: #FFF;
  border-color: var(--primary);
}

/* Search Bar Area */
.search-container {
  margin-bottom: 20px;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 56px;
  padding: 0 54px 0 20px;
  font-size: 16px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon-btn {
  position: absolute;
  right: 14px;
  background: transparent;
  border: none;
  color: var(--accent-sage);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  transition: color 0.2s;
}

.search-icon-btn:hover {
  color: var(--primary);
}

/* Tag Chips & Collapsible Bar */
.tag-bar-container {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 14px;
  margin-bottom: 22px;
}

.tag-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
  overflow: hidden;
  max-height: 500px;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tag-bar.collapsed {
  max-height: 34px; /* One line height */
}

.tag-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
  user-select: none;
  height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.tag-toggle-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-light);
}

.tag-chip {
  padding: 5px 14px;
  font-size: 13px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.tag-chip:hover {
  border-color: var(--accent-sage);
  color: var(--primary);
}

.tag-chip.active {
  background-color: var(--primary);
  color: #FFF;
  border-color: var(--primary);
  font-weight: 600;
}

/* Divider */
.site-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color) 15%, var(--border-color) 85%, transparent);
  margin: 10px 0 24px;
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 0 2px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-count {
  font-size: 13px;
  font-weight: normal;
  color: var(--text-muted);
  background: var(--primary-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.sort-group {
  display: flex;
  gap: 6px;
}

.sort-btn {
  background: none;
  border: none;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.sort-btn.active {
  color: var(--primary);
  font-weight: 700;
  background-color: var(--primary-light);
}

/* Resource List */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Optimized Card UI:
-------
标题 [标签]  |  详情=>
四张预览图
---------
*/
.resource-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}

/* Card Header: 标题 [标签]  |  详情=> */
.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-width: 0;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.card-tags-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Blue [TG] Badge */
.badge-tg {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background-color: #2481CC;
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
  line-height: 1.2;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 3px rgba(36, 129, 204, 0.25);
}

.card-tag-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  line-height: 1.2;
  background: var(--primary-light);
  color: var(--primary);
}

.card-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.card-meta-inline {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.btn-card-detail {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.resource-card:hover .btn-card-detail {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}

/* Four Preview Images Grid */
.card-quad-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.quad-item {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background-color: var(--primary-light);
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.quad-item img,
.quad-item video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
  pointer-events: none;
}

.resource-card:hover .quad-item img,
.resource-card:hover .quad-item video {
  transform: scale(1.08);
}

.quad-placeholder {
  font-size: 26px;
  opacity: 0.6;
}

.btn-copy-mini:hover {
  color: var(--primary);
  background: var(--primary-light);
}

/* Card Meta (128 张 · 12 MB) */
.card-meta {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.meta-dot {
  opacity: 0.5;
}

/* Card Action Button [查看 →] */
.card-action {
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
}

.btn-view {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--primary-border);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.resource-card:hover .btn-view {
  background-color: var(--primary);
  color: #FFF;
  border-color: var(--primary);
}

/* Empty State & Loading State */
.state-container {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.state-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

/* Modal Popup (Detailed Preview) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 34, 28, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 28px;
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  scrollbar-width: thin;
  scrollbar-color: var(--primary-border) var(--primary-light);
}

.modal-content::-webkit-scrollbar {
  width: 7px;
}

.modal-content::-webkit-scrollbar-track {
  background: var(--primary-light);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb {
  background: var(--primary-border);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--accent-sage);
}

.modal-overlay.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--primary-light);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s;
}

.modal-close:hover {
  background: var(--primary-border);
}

.modal-header {
  margin-bottom: 18px;
  padding-right: 36px;
}

.modal-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
}

.modal-stats {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.modal-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 14px 0 18px;
}

.modal-tag {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--accent-sage-light);
  color: var(--accent-sage);
  font-weight: 500;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 8px;
  margin: 16px 0 24px;
}

.preview-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  position: relative;
}

.preview-thumb img,
.preview-thumb video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  transition: opacity 0.2s ease;
}

.preview-thumb img[data-src],
.preview-thumb video[data-src] {
  opacity: 0;
}

.preview-thumb img:not([data-src]),
.preview-thumb video:not([data-src]) {
  opacity: 1;
}

.preview-retry-btn {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  background: var(--accent-sage-light);
  color: var(--text-secondary);
  font-size: 15px;
  transition: all 0.2s;
}

.preview-retry-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.preview-retry-btn small {
  font-size: 10px;
  font-weight: 600;
}

.modal-actions {
  display: flex;
  gap: 12px;
  margin: 16px 0 20px;
}

#modalPreviewSection {
  border-top: 1px dashed var(--border-color);
  padding-top: 16px;
}

.btn-pan-download {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #FFF;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.2s, transform 0.1s;
}

.btn-pan-download:hover {
  background: var(--primary-hover);
}

.btn-tg-copy {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: #2481CC;
  color: #FFF;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(36, 129, 204, 0.25);
  transition: background 0.2s, transform 0.1s;
}

.btn-tg-copy:hover {
  background: #1B6EAD;
}

.btn-primary {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #FFF;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Toast Message */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(50px);
  background: var(--primary);
  color: #FFF;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  body {
    padding: 16px 12px 60px;
  }

  .site-header {
    padding: 12px 0 20px;
  }

  .brand-title {
    font-size: 22px;
  }

  .resource-card {
    grid-template-columns: 72px 1fr;
    gap: 12px;
    padding: 14px;
  }

  .card-preview {
    width: 72px;
    height: 72px;
  }

  .card-action {
    grid-column: 1 / -1;
    margin-top: 4px;
  }

  .btn-view {
    width: 100%;
    justify-content: center;
  }

  .modal-content {
    padding: 20px;
  }

  .modal-actions {
    flex-direction: column;
  }
}