/**
 * 最新活动页 - 样式细节优化（HOME参考 + 站点规范）
 */
.activity-page-wrap {
    background: #f5f7fa;
    overflow-x: hidden;
}

.activity-page-wrap .main {
    padding: 0;
    background: transparent;
}

.activity-page-wrap .auto {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
}

.activity-page-wrap .text-center {
    text-align: center;
}

.activity-page-wrap .pull-left {
    float: none;
}

.activity-page-wrap .relative {
    position: relative;
}

.activity-page-wrap .absolute {
    position: absolute;
}

.activity-page-wrap .hide {
    display: none !important;
}

.activity-page-wrap .visi-hiden {
    visibility: hidden;
}

/* Banner */
.activity-page-wrap .act-banner {
    position: relative;
    text-align: center;
    background: url(img/index/act_banner.jpg) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

.activity-page-wrap .act-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 20, 60, 0.15) 0%, rgba(0, 20, 60, 0.45) 100%);
    pointer-events: none;
}

.activity-page-wrap .main-title,
.activity-page-wrap .main-title-desc {
    z-index: 1;
    width: 90%;
    max-width: 760px;
    white-space: normal;
    line-height: 1.35;
}

.activity-page-wrap .main-title {
    font-size: 36px;
    font-weight: 600;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.activity-page-wrap .main-title-desc {
    font-size: 16px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* Tab 切换 */
.activity-page-wrap .act-tabs-wrap {
    position: relative;
    z-index: 2;
    margin-top: -24px;
    margin-bottom: 8px;
}

.activity-page-wrap .main-tabs {
    display: flex;
    width: 100%;
    max-width: 600px;
    margin: 0 auto 32px;
    border: 1px solid #e7e7e7;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    background: #fff;
}

.activity-page-wrap .tab-item {
    float: none;
    flex: 1 1 33.333%;
    width: auto;
    height: 42px;
    line-height: 42px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
    user-select: none;
}

.activity-page-wrap .tab-item:hover:not(.tab-active) {
    color: #0052d9;
    background: #f5f8ff;
}

.activity-page-wrap .tab-item-border {
    border-left: 1px solid #e7e7e7;
    border-right: 1px solid #e7e7e7;
}

.activity-page-wrap .tab-item.tab-active {
    color: #fff;
    background: #0052d9;
}

/* 活动列表网格 */
.activity-page-wrap .main-area {
    padding-top: 24px;
    margin-bottom: 72px;
    text-align: center;
}

.activity-page-wrap .act-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
    width: 100%;
    text-align: left;
}

.activity-page-wrap .banner-item {
    width: 100%;
    height: auto;
    margin: 0;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid #f0f0f0;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.activity-page-wrap .banner-item:hover {
    border-color: #e7e7e7;
    box-shadow: 0 6px 20px rgba(0, 82, 217, 0.1);
    transform: translateY(-2px);
}

.activity-page-wrap .img-box {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: #f5f5f5;
    display: block;
}

.activity-page-wrap .img-box a {
    display: block;
    width: 100%;
    height: 100%;
}

.activity-page-wrap .banner-img-area {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.activity-page-wrap .banner-item:hover .banner-img-area {
    transform: scale(1.03);
}

.activity-page-wrap .banner-desc-area {
    flex: 1;
    position: relative;
    padding: 18px 20px 68px;
    box-sizing: border-box;
}

.activity-page-wrap .banner-title {
    margin: 0 0 10px;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    color: #1f2329;
    display: block;
}

.activity-page-wrap .banner-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.activity-page-wrap .banner-title a:hover {
    color: #0052d9;
}

.activity-page-wrap .font-color-gray,
.activity-page-wrap .desc-text {
    margin: 0 0 6px;
    font-size: 13px;
    line-height: 1.5;
    color: #86909c;
}

.activity-page-wrap .operate-area {
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 16px;
    text-align: right;
}

.activity-page-wrap .operate-area .join-btn {
    position: static;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 132px;
    height: 36px;
    padding: 0 20px;
    margin: 0;
    border-radius: 3px;
    font-size: 14px;
    line-height: 1;
    color: #fff;
    text-decoration: none;
    background: #0052d9;
    box-sizing: border-box;
    transition: background-color 0.3s ease;
}

.activity-page-wrap .operate-area .join-btn:hover {
    color: #fff;
    background: #0034a5;
}

.activity-page-wrap .operate-area .join-btn.unstart {
    background: #fff;
    border: 1px solid #0052d9;
    color: #0052d9;
    cursor: default;
}

.activity-page-wrap .operate-area .join-btn.unstart:hover {
    background: #fff;
    color: #0052d9;
}

.activity-page-wrap .operate-area .join-btn.ended {
    border: 1px solid #dcdcdc;
    background: #f0f0f0;
    color: #999;
    cursor: not-allowed;
}

.activity-page-wrap .operate-area .join-btn.ended:hover {
    background: #f0f0f0;
    color: #999;
}

/* 角标 */
.activity-page-wrap .corner-mark {
    width: 72px;
    height: 72px;
    right: 0;
    top: 0;
    z-index: 2;
    pointer-events: none;
}

.activity-page-wrap .corner-mark.unstart {
    background: url(img/index/unstart.png) no-repeat right top / contain;
}

.activity-page-wrap .corner-mark.live {
    background: url(img/index/live.png) no-repeat right top / contain;
}

.activity-page-wrap .corner-mark.end {
    background: url(img/index/end.png) no-repeat right top / contain;
}

/* 空状态 */
.activity-page-wrap .no-act-default {
    grid-column: 1 / -1;
    padding: 48px 20px 64px;
    margin: 0;
    height: auto;
    background: #fff;
    border: 1px dashed #dcdcdc;
    border-radius: 4px;
}

.activity-page-wrap .tip-words {
    font-size: 14px;
    color: #86909c;
}

/* PC 顶栏 */
@media screen and (min-width: 769px) {
    .activity-page-wrap .act-banner {
        height: 360px;
        padding-top: 95px;
        box-sizing: border-box;
    }

    .activity-page-wrap .main-title {
        top: 168px;
        font-size: 40px;
    }

    .activity-page-wrap .main-title-desc {
        top: 232px;
    }

    .activity-page-wrap .act-card-list {
        grid-template-columns: repeat(auto-fill, minmax(340px, 560px));
        justify-content: center;
    }
}

/* 平板 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    .activity-page-wrap .act-card-list {
        grid-template-columns: 1fr;
        max-width: 580px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* 手机 */
@media screen and (max-width: 768px) {
    .activity-page-wrap .auto {
        padding: 0 16px;
    }

    .activity-page-wrap .act-banner {
        height: auto;
        min-height: 200px;
        padding: 72px 16px 48px;
        margin-bottom: 0;
        box-sizing: border-box;
    }

    .activity-page-wrap .main-title,
    .activity-page-wrap .main-title-desc {
        position: static;
        transform: none;
        left: auto;
        width: 100%;
        max-width: none;
    }

    .activity-page-wrap .main-title {
        font-size: 26px;
        margin-bottom: 10px;
    }

    .activity-page-wrap .main-title-desc {
        font-size: 14px;
    }

    .activity-page-wrap .act-tabs-wrap {
        margin-top: 0;
        margin-bottom: 0;
    }

    .activity-page-wrap .main-tabs {
        max-width: 100%;
        margin-bottom: 20px;
    }

    .activity-page-wrap .tab-item {
        height: 40px;
        line-height: 40px;
        font-size: 13px;
        padding: 0 4px;
    }

    .activity-page-wrap .main-area {
        padding-top: 16px;
        margin-bottom: 40px;
    }

    .activity-page-wrap .act-card-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .activity-page-wrap .img-box {
        height: 180px;
    }

    .activity-page-wrap .banner-desc-area {
        padding: 14px 16px 60px;
    }

    .activity-page-wrap .operate-area {
        left: 16px;
        right: 16px;
        bottom: 12px;
    }

    .activity-page-wrap .operate-area .join-btn {
        min-width: 108px;
        height: 34px;
        font-size: 13px;
    }

    .activity-page-wrap .corner-mark {
        width: 60px;
        height: 60px;
    }
}