/* ==========================================================================
   overview.css — 分类概览页样式（通用组件）
   类别：页面（category-overview 视图专用，各分类概览复用）
   布局：顶部横排大图标块（横向居中）+ 下方分类介绍
   ========================================================================== */

.overview-main {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 56px 24px 72px;
}

.overview-inner {
    width: 100%;
    max-width: 920px;
}

/* ---------- 顶部横排：大图标 + 文字块，横向居中 ---------- */
.overview-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 22px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 36px;
}

.ov-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 160px;
    padding: 26px 16px 22px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    text-decoration: none;
    color: var(--text);
    box-shadow: var(--shadow-card);
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
    text-align: center;
}

.ov-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.4);
    box-shadow: 0 0 26px rgba(34, 211, 238, 0.14);
}

.ov-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 68px;
    border-radius: 20px;
    background: rgba(34, 211, 238, 0.1);
    color: var(--accent);
    font-size: 2.3rem;
    transition: background 0.15s, color 0.15s;
}

.ov-card:hover .ov-icon {
    background: rgba(34, 211, 238, 0.18);
}

.ov-name {
    font-size: 1.02rem;
    font-weight: 600;
}

.ov-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.45;
    min-height: 2.3em;
}

/* ---------- 下方：分类介绍 ---------- */
.overview-intro {
    max-width: 680px;
    margin: 0 auto;
}

.ov-intro-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.ov-intro-title iconify-icon {
    color: var(--accent);
    font-size: 1.2rem;
}

.ov-intro-para {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

/* ---------- 移动端 ---------- */
@media (max-width: 620px) {
    .overview-main { padding: 40px 18px 56px; }
    .ov-card { width: 44%; }
}