/* ========================================
   在线题库页面样式 - question_bank_page
   ======================================== */

/* 页面背景色 */
body {
    background-color: #f5f5f5;
}

/* Hero Section - 使用 common_index.css 的 .hero-section 样式，只覆盖背景色 */
.question-bank-hero {
    background: linear-gradient(135deg, #3298dc 0%, #3273dc 100%);
    border-radius: 0;
    margin-bottom: 0;
    padding: 2rem 0;
}

/* ===== 三种练习方式卡片 ===== */
.practice-mode-card {
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid #e8e8e8;
    height: 100%;
}

.practice-mode-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.practice-mode-card.is-type {
    border-color: #3298dc;
}

.practice-mode-card.is-knowledge {
    border-color: #ffdd57;
    background: linear-gradient(to bottom, #fffef5, #ffffff);
}

.practice-mode-card.is-exam {
    border-color: #48c774;
}

.mode-icon {
    position: relative;
}

.mode-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    z-index: 10;
}

.mode-description {
    min-height: 80px;
}

.mode-stats .heading {
    font-weight: 600;
    color: #7a7a7a;
}

.mode-features .tag {
    margin: 0.2rem;
}

.mode-preview .notification {
    padding: 0.5rem 0.75rem;
    margin-bottom: 0;
}

.h-100 {
    height: 100%;
}

/* 「最新真题」已改为场次行 + 等级胶囊（共用样式在
   lemon_oj/css/exam_sessions.css），原先的试卷大卡与虚线"查看更多"卡样式已删除。 */

/* ===== 响应式调整 ===== */
@media (max-width: 768px) {
    .practice-mode-card .card-content {
        padding: 1.5rem !important;
    }

    .mode-description {
        min-height: auto;
    }

    .columns.is-multiline .column.is-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}