/* index.php 风格1 — 四栏栏目（结构对齐 fg/XX.NET 的 box-list） */
    .main { max-width: var(--home-max-width, 1150px); margin: 0 auto; padding: 4px 16px 12px; box-sizing: border-box; }

    .cats-grid.box-list {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        grid-auto-rows: 100px;
        gap: 0 1rem;
        row-gap: 1rem;
        width: 100%;
        align-items: stretch;
    }
    .cats-grid .cat-card.size-s { grid-row: span 2; }
    .cats-grid .cat-card.size-m { grid-row: span 3; }
    .cats-grid .cat-card.size-l { grid-row: span 6; }
    .cats-grid .cat-card.size-xl { grid-row: span 9; }
    .cats-grid .cat-card.size-xxl { grid-row: span 12; }

    @media (max-width: 1000px) {
        .cats-grid.box-list { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 600px) {
        .cats-grid.box-list { grid-template-columns: 1fr; }
    }

    /* 单张栏目卡：白底圆角 + 底栏渐变（随 --cat-accent） */
    .cats-grid .cat-card.box {
        height: 100%;
        box-sizing: border-box;
        position: relative;
        display: flex;
        flex-direction: column;
        border-radius: 1rem;
        background: #ffffff;
        overflow: hidden;
        margin: 0;
        border: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow: 0 4px 18px rgba(15, 23, 42, 0.07);
        transition: box-shadow 0.25s ease, transform 0.2s ease;
    }
    .cats-grid .cat-card.box:hover {
        box-shadow: 0 10px 32px rgba(15, 23, 42, 0.12);
        transform: translateY(-2px);
    }

    .cats-grid .cat-card.box h2.title {
        margin: 0;
        min-height: 3rem;
        line-height: 1.2;
        padding: 0.85rem 1rem;
        font-size: 0.95rem;
        font-weight: bold;
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
    }

    .cats-grid .cat-card.box h2.title::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        z-index: 5;
        width: 55px;
        height: 3px;
        border-radius: 2px;
        background-color: rgba(255, 255, 255, 0.85);
        transition: width 0.3s ease;
    }
    .cats-grid .cat-card.box:hover h2.title::after {
        width: 85%;
    }

    .cats-grid .cat-card.box .title a {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        width: 100%;
        text-decoration: none;
        color: #fff !important;
        font-size: 0.95rem;
    }

    .cats-grid .cat-card.box .title a img {
        max-height: 2rem;
        max-width: 2rem;
        width: auto;
        height: auto;
        object-fit: contain;
        flex-shrink: 0;
        filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.2));
    }

    .cats-grid .cat-card.box .cat-title-ico-emoji {
        font-size: 1.6rem;
        line-height: 1;
        flex-shrink: 0;
        filter: drop-shadow(1px 1px 1px rgba(0, 0, 0, 0.15));
    }

    .cats-grid .cat-card.box .cat-name {
        font-size: 0.95rem;
        font-weight: 700;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .cats-grid .cat-card.box .intro {
        padding: 0.5rem 0.75rem;
        font-size: 12px;
        color: #4b4c4f;
        line-height: 1.35rem;
        text-align: center;
        flex-shrink: 0;
    }

    .cats-grid .cat-card.box ul.cat-site-list {
        list-style: none;
        margin: 0;
        padding: 0.25rem 1rem 0.5rem;
        overflow-x: hidden;
        overflow-y: auto;
        scrollbar-width: thin;
        flex: 1 1 auto;
        min-height: 0;
        counter-reset: site-rank;
    }

    .cats-grid .cat-card.box ul.cat-site-list::-webkit-scrollbar {
        width: 3px;
    }
    .cats-grid .cat-card.box ul.cat-site-list::-webkit-scrollbar-track {
        background: transparent;
    }
    .cats-grid .cat-card.box ul.cat-site-list::-webkit-scrollbar-thumb {
        background: color-mix(in srgb, var(--cat-accent, #3088a3) 55%, #ccc);
        border-radius: 3px;
    }

    .cats-grid .cat-card.box li.row-line {
        position: relative;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 5px 0;
        border-bottom: 1px dashed #f0f0f0;
        counter-increment: site-rank;
    }
    .cats-grid .cat-card.box li.row-line:last-child {
        border-bottom: none;
    }

    .cats-grid .cat-card.box li.row-line::before {
        content: counter(site-rank);
        display: inline-block;
        width: 20px;
        min-width: 20px;
        height: 20px;
        line-height: 18px;
        margin-top: 1px;
        text-align: center;
        color: #4b4c4f;
        font-size: 11px;
        font-weight: 300;
        border: 1px solid #e3e3e3;
        border-radius: 50%;
        flex-shrink: 0;
        background: #fafafa;
    }

    .cats-grid .cat-card.box li.cat-empty-tip {
        padding: 1.5rem 0.5rem;
        text-align: center;
        color: #9ca3af;
        font-size: 13px;
        list-style: none;
    }

    .cats-grid .cat-card.box .star-link {
        flex: 1 1 auto;
        min-width: 0;
        color: #272727 !important;
        text-decoration: none !important;
        font-size: 13.8px;
        display: flex;
        align-items: center;
    }

    .cats-grid .cat-card.box .star-link .info {
        display: flex;
        align-items: center;
        gap: 6px;
        min-width: 0;
        overflow: hidden;
        flex-wrap: nowrap;
    }

    .cats-grid .cat-card.box .site-fav {
        width: 17px;
        height: 17px;
        border-radius: 50%;
        object-fit: cover;
        flex-shrink: 0;
        vertical-align: middle;
    }
    .cats-grid .cat-card.box .site-fav--ph {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: #f3f4f6;
        font-size: 11px;
        overflow: hidden;
    }

    .cats-grid .cat-card.box .site-line-name {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        font-family: inherit;
        font-weight: 500;
    }

    .cats-grid .cat-card.box .site-attrs-inline {
        display: inline-flex;
        gap: 3px;
        align-items: center;
        flex-shrink: 0;
    }
    .cats-grid .cat-card.box .site-attr-icon {
        width: 14px;
        height: 14px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 9px;
        line-height: 1;
    }
    .cats-grid .cat-card.box .site-attr-icon img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .cats-grid .cat-card.box .visit-icon {
        flex: 0 0 auto;
        width: 22px;
        height: 22px;
        display: none;
        align-items: center;
        justify-content: center;
        border-radius: 6px;
        text-decoration: none !important;
        color: var(--cat-accent, #3088a3) !important;
        font-size: 13px;
        font-weight: 600;
        background: rgba(0, 0, 0, 0.04);
        border: 1px solid rgba(0, 0, 0, 0.06);
    }
    .cats-grid .cat-card.box li.row-line:hover .visit-icon {
        display: inline-flex;
    }
    .cats-grid .cat-card.box .visit-icon:hover {
        transform: scale(1.06);
        background: #fff;
    }

    .cats-grid .cat-card.box .site-tooltip {
        position: absolute;
        top: calc(100% + 4px);
        left: 28px;
        right: 8px;
        background: linear-gradient(135deg, #1e1b4b, #312e81);
        color: #fff;
        padding: 6px 10px;
        border-radius: 6px;
        font-size: 11px;
        line-height: 1.4;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-4px);
        transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
        z-index: 50;
        box-shadow: 0 5px 16px rgba(0, 0, 0, 0.25);
        pointer-events: none;
    }
    .cats-grid .cat-card.box li.row-line:hover .site-tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    [data-theme="dark"] .cats-grid .cat-card.box .site-tooltip {
        background: linear-gradient(135deg, #f8fafc, #e2e8f0);
        color: #1f2937;
    }

    /* 底部「查看更多」：参考站渐变条 + 白底圆角按钮 */
    .cats-grid .cat-card.box .more-btn {
        flex-shrink: 0;
        text-align: center;
        padding: 0.5rem 0 0.65rem;
        margin-top: auto;
    }

    .cats-grid .cat-card.box .more-btn .view-more-link {
        display: block;
        width: calc(100% - 3rem);
        max-width: 100%;
        margin: 0 auto;
        padding: 0.45rem 0.75rem;
        border-radius: 15px;
        font-size: 13px;
        font-weight: 500;
        color: #222 !important;
        text-decoration: none !important;
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .cats-grid .cat-card.box .more-btn .view-more-link:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
        color: #000 !important;
    }

    [data-theme="dark"] .cats-grid .cat-card.box {
        background: var(--bg-card, #1a1a1a);
        border-color: rgba(255, 255, 255, 0.08);
    }
    [data-theme="dark"] .cats-grid .cat-card.box .intro {
        color: #a1a1aa;
    }
    [data-theme="dark"] .cats-grid .cat-card.box .star-link {
        color: #e5e5e5 !important;
    }
    [data-theme="dark"] .cats-grid .cat-card.box li.row-line {
        border-bottom-color: rgba(255, 255, 255, 0.06);
    }
    [data-theme="dark"] .cats-grid .cat-card.box .more-btn .view-more-link {
        background: rgba(30, 30, 30, 0.95);
        color: #f5f5f5 !important;
        border-color: rgba(255, 255, 255, 0.12);
    }

    @media (max-width: 768px) {
        .cats-grid .cat-card.box ul.cat-site-list {
            max-height: none;
        }
    }

    /* 首页 main 内广告位与内容间距 */
    .main .ad-slot-wrap.ad-slot-a5 { margin-top: 16px; }
    .main .ad-slot-wrap.ad-slot-a6 { margin-top: 4px; }