/* ========== 网址导航 · 页面样式（通用见 common.css） ========== */

/* 分类标题 */
.category-title {
    color: var(--gradient-theme-title);
    margin: 32px 0 16px 0;
    font-size: 1.4rem;
    font-weight: 700;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--line-ins);
    position: relative;
}

.category-title:first-of-type {
    margin-top: 0;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-theme-h);
    border-radius: 0;
}

/* 网站卡片网格 */
.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

@media (min-width: 1024px) {
    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 18px;
    }
}

/* 网站卡片 */
.site-card {
    background: var(--color-card);
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 0;
    padding: 18px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    box-shadow: var(--shadow-ins);
    position: relative;
    overflow: hidden;
}

.site-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-theme-h);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.site-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card-float-hover);
    border-color: rgba(0, 0, 0, 0.1);
}

.site-card:hover::before {
    transform: scaleX(1);
}

.site-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.site-icon {
    width: 28px;
    height: 28px;
    border-radius: 0;
    margin-right: 12px;
    flex-shrink: 0;
    object-fit: contain;
    background: #f5f5f5;
    padding: 2px;
    transition: transform 0.3s ease;
}

.site-card:hover .site-icon {
    transform: scale(1.1);
}

.site-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gradient-theme-title);
    margin: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
}

.site-desc {
    font-size: 0.75rem;
    color: #7f8c8d;
    margin: 6px 0 4px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-url {
    font-size: 0.8rem;
    color: #95a5a6;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.site-card:hover .site-url {
    color: var(--color-theme-text-end);
}

/* 移动端优化 */
@media (max-width: 767.98px) {
    h1 {
        font-size: 1.5rem;
        white-space: normal;
        max-width: 60%;
        text-align: center;
    }

    .back-btn {
        padding: 9px 18px;
        font-size: 0.9rem;
    }

    .category-title {
        font-size: 1.2rem;
        margin: 28px 0 14px 0;
    }

    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }

    .site-card {
        padding: 16px;
        border-radius: 0;
    }

    .site-icon {
        width: 24px;
        height: 24px;
        margin-right: 10px;
    }

    .site-name {
        font-size: 0.95rem;
    }

    .site-desc {
        font-size: 0.7rem;
        margin: 5px 0 3px 0;
    }

    .site-url {
        font-size: 0.75rem;
    }
}