/* ===== 全局基础 (莫兰迪风格) ===== */
:root {
  /* 背景与卡片：降低对比度，增加暖灰质感 */
  --color-bg: #F5F5F0;
  --color-card: #FFFFFF;
  
  /* 主色调：莫兰迪灰豆绿 */
  --color-primary: #8C9A92;
  --color-primary-hover: #7A8980;
  
  /* 文字颜色：柔和炭灰系 */
  --color-text-title: #4A4A4A;
  --color-text-body: #6B6B6B;
  --color-text-muted: #9E9E9E;
  
  /* 边框与圆角 */
  --color-border: #E8E8E3;
  --radius-card: 14px;
  --radius-pill: 999px;
  
  /* 阴影：中性暖灰阴影，去除蓝色调 */
  --shadow-card: 0 2px 12px rgba(74, 74, 74, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(74, 74, 74, 0.10);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background: var(--color-bg);
  color: var(--color-text-body);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ===== 搜索框 ===== */
.search-box {
  margin-bottom: 2rem;
}

.search-box input {
  width: 100%;
  max-width: 560px;
  padding: 14px 24px 14px 48px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='%239E9E9E' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.47 6.47 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") no-repeat 16px center;
  box-shadow: var(--shadow-card);
  font-size: 1rem;
  color: var(--color-text-title);
  transition: var(--transition);
  outline: none;
  box-sizing: border-box;
}

.search-box input:focus {
  border-color: var(--color-primary);
  /* ✅ 已修复：focus 光环改为莫兰迪灰绿 */
  box-shadow: var(--shadow-card-hover), 0 0 0 4px rgba(140, 154, 146, 0.15);
}

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

/* ===== 分类筛选按钮 ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 8px 20px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-card);
  color: var(--color-text-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.filter-btn:hover {
  /* ✅ 已修复：hover 背景改为莫兰迪浅绿底 */
  background: #EEF2EF;
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  /* ✅ 已修复：active 阴影去除蓝色调 */
  box-shadow: 0 4px 12px rgba(140, 154, 146, 0.3);
}

/* ===== 资源卡片网格 ===== */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.resource-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid transparent;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  /* ✅ 已修复：hover 边框改为莫兰迪灰绿 */
  border-color: rgba(140, 154, 146, 0.15);
}

.card-header h3 {
  margin: 0 0 12px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-title);
  line-height: 1.4;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  /* ✅ 已修复：标签背景改为莫兰迪浅绿底 */
  background: #EEF2EF;
  color: var(--color-primary);
  font-weight: 500;
}

/* ===== 下载按钮 ===== */
.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  background: var(--color-primary);
  color: #fff;
}

.download-btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.no-link {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ===== 分页器 ===== */
.hugo-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 3rem;
}

.hugo-pagination button {
  min-width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  background: var(--color-card);
  color: var(--color-text-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.hugo-pagination button:hover:not(:disabled):not(.active) {
  /* ✅ 已修复：hover 背景改为莫兰迪浅绿底 */
  background: #EEF2EF;
  color: var(--color-primary);
}

.hugo-pagination button.active {
  background: var(--color-primary);
  color: #fff;
  /* ✅ 已修复：active 阴影去除蓝色调 */
  box-shadow: 0 4px 12px rgba(140, 154, 146, 0.3);
}

.hugo-pagination button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== 无结果提示 ===== */
.no-results {
  text-align: center;
  padding: 4rem 1rem;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .resource-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .search-box input {
    padding-left: 40px;
  }
}

/* ===== 分组模式下隐藏分页器 ===== */
.tg-pagination-hidden {
  display: none !important;
}

/* ===== 时间/字母分组标题 ===== */
.tg-group-header {
  grid-column: 1 / -1;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-title);
  padding: 12px 0 4px;
  margin-top: 8px;
  border-bottom: 2px solid var(--color-border);
}

.tg-group-header:first-child {
  margin-top: 0;
}

/* ===== 分组切换按钮组 ===== */
.tg-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.5rem;
}

.tg-switcher-btn {
  padding: 8px 20px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-card);
  color: var(--color-text-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.tg-switcher-btn:hover {
  /* ✅ 已修复：hover 背景改为莫兰迪浅绿底 */
  background: #EEF2EF;
  color: var(--color-primary);
}

.tg-switcher-btn.active {
  background: var(--color-primary);
  color: #fff;
  /* ✅ 已修复：active 阴影去除蓝色调 */
  box-shadow: 0 4px 12px rgba(140, 154, 146, 0.3);
}

@media (max-width: 640px) {
  div[style*="top:1.25rem; right:2rem"] {
    right: 1rem !important;
    gap: 6px !important;
  }
  div[style*="top:1.25rem; right:2rem"] a {
    padding: 0.5rem 1rem !important;
    font-size: 0.75rem !important;
  }
}

@media (max-width: 1024px) {
  .resource-grid {
    padding-right: 36px !important;
  }
}