/* ==========================================
   Kopf Gym (kopfgym.com) - 分类页特有样式表 (category.css)
   ========================================== */

/* 主体内容布局 */
main {
    flex-grow: 1;
    padding-bottom: 80px;
}

/* 面包屑与顶端分类标题 (美式期刊专栏标头) */
.cat-hero {
    background-color: var(--bg-secondary);
    padding: 36px 0 44px 0 !important;
    border-bottom: 2px solid var(--color-border);
}

.breadcrumb {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.cat-title-section {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cat-icon-lg {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

/* 分类大图标色彩：与首页四大部门完全同步 */
.cat-icon-brain { background: var(--color-primary); }
.cat-icon-house { background: #166534; }
.cat-icon-travel { background: var(--color-accent); }
.cat-icon-trivia { background: #881337; }

.cat-title-text h1 {
    font-family: var(--font-serif);
    font-size: 38px;
    font-weight: 900;
    color: var(--text-main);
    line-height: 1.2;
}

.cat-title-text p {
    font-size: 17px;
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 600;
}

/* 测试列表布局 */
.list-section {
    padding: 48px 0;
}

.quiz-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.quiz-card {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.quiz-img-box {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--bg-subtle);
    position: relative;
}

.quiz-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.quiz-card:hover .quiz-img {
    transform: scale(1.04);
}

.quiz-info {
    padding: 22px 20px !important;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.quiz-meta {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.quiz-card-title {
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
    line-height: 1.4;
}

.quiz-card-desc {
    font-size: 17px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
    flex: 1;
}

.quiz-action {
    font-size: 18px;
    font-weight: 900;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

.quiz-card:hover .quiz-action {
    color: var(--color-accent);
}

/* 侧边无障碍小常识推荐板块 (圆角统一调整为 10px) */
.aside-tips {
    background-color: var(--bg-secondary);
    border: 3px solid var(--color-border);
    border-radius: 10px;
    padding: 36px;
    margin-bottom: 44px;
    box-shadow: var(--shadow-sm);
}

.aside-tips-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 2px dashed var(--color-border);
    margin-bottom: 20px;
}

.aside-tips-title {
    font-size: 24px;
    font-weight: 900;
    color: var(--color-primary);
    margin: 0;
}

.aside-tips-intro {
    font-size: 17px;
    color: var(--text-main);
    line-height: 1.7;
    margin-bottom: 24px;
}

/* 结构化常识小卡片 */
.tips-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 868px) {
    .tips-cards-grid {
        grid-template-columns: 1fr;
    }
}

.tips-card {
    background-color: #faf8f5;
    border: 2px solid var(--color-border);
    border-radius: 10px;
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.tips-card-title {
    font-size: 19px;
    font-weight: 800;
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.tips-card-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.tips-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tips-list-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-main);
}

.tips-bullet {
    background-color: var(--color-accent-light);
    color: var(--color-primary);
    font-weight: 900;
    font-size: 14px;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
    border: 1px solid var(--color-border);
}

/* 响应式样式适配 */
@media (max-width: 1024px) {
    .quiz-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    main .container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .quiz-card-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    .cat-hero {
        padding: 15px 0 35px 0 !important;
    }
    .cat-title-text h1 {
        font-size: 28px !important;
    }
    .quiz-card-title {
        font-size: 20px !important;
    }
    .aside-tips {
        padding: 24px !important;
        border-radius: 10px !important;
        margin-bottom: 28px !important;
    }
    .aside-tips-intro {
        font-size: 15px !important;
    }
}

/* ==========================================
   暗黑模式高对比度微调
   ========================================== */
body.dark-theme .cat-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-color: var(--color-border);
}

body.dark-theme .breadcrumb {
    color: #94a3b8;
}

body.dark-theme .breadcrumb a {
    color: #60a5fa;
}

body.dark-theme .aside-tips {
    background-color: var(--bg-secondary);
    border-color: var(--color-border);
}

body.dark-theme .aside-tips-title {
    color: #facc15; /* 高亮金黄 */
}

body.dark-theme .tips-card {
    background-color: #1e293b;
    border-color: #334155;
}

body.dark-theme .tips-card-title {
    color: #facc15;
}

body.dark-theme .tips-bullet {
    background-color: #334155;
    color: #facc15;
    border-color: #475569;
}

body.dark-theme .quiz-img-box {
    background-color: #0f172a;
}

/* ==========================================
   标签分类页专有样式表 (Tag Category Page Styles)
   美式传统报刊风格，高对比度长者友好无障碍设计
   ========================================== */

/* 标签页头部徽章与元信息 */
.tag-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--color-accent-light);
    color: var(--color-accent);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 14px;
    border: 1px solid var(--color-border);
}

.tag-hero-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 14px;
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 700;
}

.tag-hero-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tag-hero-dot {
    color: var(--color-border);
}

/* 标签筛选导航条 (纯 HTML 结构，零无用交互，完全语义化) */
.tag-filter-container {
    margin-top: 32px;
    margin-bottom: 8px;
    padding-top: 24px;
    border-top: 2px dashed var(--color-border);
}

.tag-filter-title {
    font-size: 15px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-muted);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tag-filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    background-color: var(--bg-secondary);
    color: var(--text-main);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-chip:hover {
    background-color: var(--bg-subtle);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}

.tag-chip.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.tag-chip-count {
    font-size: 13px;
    padding: 2px 7px;
    border-radius: 10px;
    background-color: rgba(20, 27, 36, 0.08);
}

.tag-chip.active .tag-chip-count {
    background-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

/* 测验卡片内的标签展示组 */
.quiz-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.quiz-card-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 800;
    color: var(--color-accent);
    background-color: var(--color-accent-light);
    padding: 3px 10px;
    border-radius: 6px;
    text-decoration: none;
    border: 1px solid rgba(180, 83, 9, 0.2);
}

.quiz-card-tag:hover {
    background-color: var(--color-accent);
    color: #ffffff;
}

/* 测验时长与难度元信息 */
.quiz-card-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 12px;
}

/* 标签云与内部互联模块 */
.tag-cloud-box {
    background-color: var(--bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: 14px;
    padding: 32px;
    margin-top: 45px;
    box-shadow: var(--shadow-sm);
}

.tag-cloud-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tag-cloud-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tag-cloud-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background-color: var(--bg-primary);
    color: var(--text-main);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-cloud-link:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

/* 暗黑模式适配 */
body.dark-theme .tag-hero-badge {
    background-color: #2c1a0e;
    color: #f59e0b;
    border-color: #78350f;
}

body.dark-theme .tag-chip {
    background-color: #1e293b;
    color: #f8fafc;
    border-color: #334155;
}

body.dark-theme .tag-chip:hover {
    background-color: #334155;
    border-color: #60a5fa;
    color: #60a5fa;
}

body.dark-theme .tag-chip.active {
    background-color: #3b82f6;
    border-color: #3b82f6;
    color: #ffffff;
}

body.dark-theme .tag-chip-count {
    background-color: rgba(255, 255, 255, 0.15);
}

body.dark-theme .quiz-card-tag {
    background-color: #2c1a0e;
    color: #fcd34d;
    border-color: #78350f;
}

body.dark-theme .quiz-card-tag:hover {
    background-color: #f59e0b;
    color: #0b1120;
}

body.dark-theme .tag-cloud-box {
    background-color: var(--bg-secondary);
    border-color: var(--color-border);
}

body.dark-theme .tag-cloud-link {
    background-color: #1e293b;
    color: #f8fafc;
    border-color: #334155;
}

body.dark-theme .tag-cloud-link:hover {
    background-color: #3b82f6;
    border-color: #3b82f6;
    color: #ffffff;
}