:root {
  --red: #D81E44;
  --gold: #D4AF37;
  --light-gold: #F0E68C;
  --dark: #121212;
  --dark-gray: #1a1a1a;
  --gray: #222;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

#section-card-pool.active {
  padding: 30px 15px;
  min-height: 100vh;
  line-height: 1.6;
}

.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background: var(--red);
  color: var(--light-gold);
  border: none;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 999;
}
.back-btn:hover {
  transform: scale(1.05);
}

.title {
  text-align: center;
  font-size: clamp(22px, 5vw, 28px);
  margin: 20px 0 30px;
  color: var(--light-gold);
  text-shadow: 0 0 8px var(--gold);
}

.stats {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin: 0 auto 30px;
  justify-content: center;
  max-width: 900px;
}
.stat-item {
  background: #222;
  padding: 18px 25px;
  border-radius: 12px;
  border: 1px solid var(--red);
  min-width: 140px;
  text-align: center;
}
.stat-item .num {
  font-size: clamp(20px, 4vw, 26px);
  font-weight: bold;
  color: var(--light-gold);
  margin-top: 6px;
}

.search-filter-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0 auto 25px;
  max-width: 1200px;
}

.search {
  width: 100%;
  padding: 14px 18px;
  font-size: 16px;
  background: #222;
  color: var(--light-gold);
  border: 1px solid var(--red);
  border-radius: 10px;
  outline: none;
}
.search:focus { 
  border-color: var(--light-gold); 
  box-shadow: 0 0 8px var(--gold);
}

.filter-collapse-item {
  width: 100%;
  background: #222;
  border: 1px solid var(--red);
  border-radius: 10px;
  margin-bottom: 10px;
}
.filter-collapse-header {
  padding: 14px 20px;
  font-size: 16px;
  font-weight: bold;
  color: var(--light-gold);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.filter-collapse-header::after {
  content: "鈻?;
  transition: transform 0.4s ease-in-out;
}
.filter-collapse-header.active::after {
  transform: rotate(90deg);
}
.filter-collapse-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-in-out, padding 0.4s ease-in-out;
  padding: 0 20px;
}
.filter-collapse-content.open {
  max-height: 2000px;
  padding: 15px 20px 20px;
}

.range-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 8px 0;
}
.range-item label {
  color: var(--light-gold);
  font-weight: bold;
  min-width: 60px;
}
.range-item input {
  width: 80px;
  padding: 8px 10px;
  background: #333;
  color: var(--light-gold);
  border: 1px solid var(--red);
  border-radius: 6px;
  text-align: center;
}
.range-item span {
  color: #ccc;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 8px 0;
}

.filter-tag {
  padding: 9px 18px;
  font-size: 14px;
  background: #333;
  color: var(--light-gold);
  border: 1px solid var(--red);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.hex-effect {
  position: absolute;
  width: 24px;
  height: 24px;
  background: var(--red);
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  pointer-events: none;
  animation: hexExpand 0.4s ease-out forwards;
}
@keyframes hexExpand {
  0% { transform: scale(0); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}
.filter-tag.active {
  background: var(--gold);
  color: #000;
  font-weight: bold;
  border-color: var(--light-gold);
  box-shadow: 0 0 12px var(--gold);
  transform: translateY(-2px);
}
.filter-tag:hover:not(.active) {
  border-color: var(--light-gold);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
  max-width: 1600px;
  margin: 0 auto;
  transition: opacity 0.3s ease;
}
.card-item {
  display: flex;
  background: #1a1a1a;
  border: 2px solid var(--red);
  border-radius: 18px;
  padding: 20px;
  gap: 20px;
  align-items: flex-start;
  transition: all 0.3s ease;
}
.card-item:hover {
  transform: translateY(-5px);
  border-color: var(--light-gold);
}
.card-image {
  width: 200px;
  height: 290px;
  object-fit: cover;
  border-radius: 10px;
  background: #222;
  flex-shrink: 0;
}
.card-name {
  font-size: clamp(18px, 3vw, 20px);
  font-weight: bold;
  color: var(--light-gold);
  text-shadow: 0 0 8px var(--gold);
}
.card-id {
  font-size: 14px;
  color: #999;
}
.card-desc {
  font-size: 14px;
  color: #ccc;
  line-height: 1.6;
}
.card-author {
  text-align: center;
  margin-top: 8px;
  font-size: 14px;
  color: var(--light-gold);
  font-weight: bold;
}

.empty-tip {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px 20px;
  font-size: 18px;
  color: #ccc;
}

.reset-filter-btn {
  padding: 10px 24px;
  background: #333;
  color: var(--light-gold);
  border: 1px solid var(--red);
  border-radius: 8px;
  cursor: pointer;
  margin: 10px auto;
  display: block;
}
.reset-filter-btn:hover {
  border-color: var(--light-gold);
}

/* 移动端按钮：桌面端隐藏 */
.mobile-pool-filter-btn,
.mobile-pool-filter-close {
  display: none;
}

/* ===================== 分页样式 ===================== */
#pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 35px 0;
  flex-wrap: wrap;
}

.pagination-btn {
  width: 42px;
  height: 42px;
  border: 1px solid var(--red);
  background: #222;
  color: var(--light-gold);
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagination-btn.prev::after {
  content: "";
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-right: 10px solid var(--light-gold);
}
.pagination-btn.next::after {
  content: "";
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 10px solid var(--light-gold);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--gold);
  box-shadow: 0 0 6px var(--gold);
}
.pagination-btn.active {
  background: var(--gold);
  color: #000;
  font-weight: bold;
}
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 鍒嗛〉璺宠浆杈撳叆妗?*/
#pagination .pagination-jump {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 10px;
}
#pagination .pagination-jump input[type="number"] {
  width: 78px;
  height: 40px;
  background: #222;
  color: var(--light-gold);
  border: 1px solid var(--red);
  border-radius: 6px;
  text-align: center;
  outline: none;
  font-size: 14px;
  padding: 0 8px;
}
#pagination .pagination-jump input[type="number"]:focus {
  border-color: var(--gold);
}
#pagination .pagination-go {
  height: 40px;
  padding: 0 14px;
  background: var(--red);
  color: var(--light-gold);
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}
#pagination .pagination-go:hover {
  background: var(--gold);
  color: #000;
}

@media (max-width: 768px) {
  .back-btn { top: 60px; }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    padding-bottom: 70px;
    transition: none;
  }
  .card-item {
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
    padding: 8px;
    gap: 8px;
    border-radius: 8px;
    border-width: 1px;
    transition: none;
  }
  .card-item:hover {
    transform: none;
  }

  /* 左图：缩小到 72x104 */
  .card-image {
    width: 72px;
    height: 104px;
    border-radius: 6px;
    flex-shrink: 0;
  }

  /* 右侧信息区：紧凑字体 */
  .card-name {
    font-size: 12px;
    text-shadow: none;
  }
  .card-id {
    font-size: 10px;
  }
  .card-type {
    font-size: 11px;
  }
  .card-info div {
    font-size: 11px;
    line-height: 1.3;
  }
  .card-desc {
    font-size: 11px;
    line-height: 1.35;
  }
  .card-author {
    font-size: 10px;
    margin-top: 2px;
    text-align: left;
  }

  /* 分页缩小 + 底部悬浮 */
  #pagination {
    position: fixed;
    bottom: 100px;
    left: 0;
    right: 0;
    gap: 6px;
    margin: 0;
    padding: 10px 8px;
    background: rgba(20, 20, 20, 0.95);
    border-top: 1px solid rgba(216, 30, 68, 0.3);
    z-index: 1000;
  }
  .pagination-btn {
    width: 34px;
    height: 34px;
    font-size: 13px;
    border-radius: 6px;
  }
  #pagination .pagination-jump {
    margin-left: 4px;
    gap: 4px;
  }
  #pagination .pagination-jump input[type="number"] {
    width: 52px;
    height: 34px;
    font-size: 12px;
  }
  #pagination .pagination-go {
    height: 34px;
    padding: 0 10px;
    font-size: 12px;
  }

  /* 隐藏内联筛选，改为弹窗模式 */
  .search-filter-container {
    display: none !important;
  }
  .search-filter-container.mobile-open {
    display: flex !important;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 999;
    padding: 60px 20px 20px;
    overflow-y: auto;
    flex-direction: column;
    margin: 0;
    max-width: 100%;
  }

  /* 移动端筛选按钮 + 关闭按钮（桌面端隐藏） */
  .mobile-pool-filter-close,
  .mobile-pool-filter-btn {
    display: none;
  }
  .mobile-pool-filter-btn {
    display: flex;
    position: fixed;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #1a1a1a;
    color: var(--light-gold, #F0E68C);
    border: 2px solid var(--red, #D81E44);
    font-size: 20px;
    cursor: pointer;
    z-index: 998;
    align-items: center;
    justify-content: center;
  }

  /* 筛选弹窗关闭按钮 */
  .mobile-pool-filter-close {
    display: none;
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: 1px solid var(--red, #D81E44);
    border-radius: 50%;
    color: var(--light-gold, #F0E68C);
    font-size: 20px;
    font-weight: bold;
    line-height: 1;
    width: 36px;
    height: 36px;
    cursor: pointer;
    z-index: 10;
    align-items: center;
    justify-content: center;
  }
  .search-filter-container.mobile-open .mobile-pool-filter-close {
    display: flex;
  }
}