body{
    background-color: #f5f5f5;
}
.main-content{
    margin-top: 80px;
}

/* 动画优化 */
/* .animate__animated {
    animation-duration: 1s;
    animation-fill-mode: both;
}

.animate__delay-1s {
    animation-delay: 0.2s !important;
}

.animate__delay-2s {
    animation-delay: 0.4s !important;
}

.animate__delay-3s {
    animation-delay: 0.6s !important;
}

.animate__delay-4s {
    animation-delay: 0.8s !important;
}

.animate__delay-5s {
    animation-delay: 1s !important;
} */

/* 品牌专区样式 */
.brand-section {
    /*padding: 10px 0;*/
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
}

.brand-container {
    /*max-width: 1226px;*/
    margin: 0 auto;
}

.profile-header{
    position: relative;
    max-width: 1226px;
    margin: 0 auto;
}

.profile-content{
    line-height: 0;
}

.profile-content {
    width: 100%;
    overflow: hidden;
}

.profile-content img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.profile-content:hover img {
    /*transform: scale(1.02);*/
}

/* ===================== 品牌历程 ===================== */
.brand-history{ 
    color: #333;
    background: url(../images/bg-2.png) 50% 80% / cover no-repeat;
}

.history-header{ 
    position: relative; 
    height: 30px;
    max-width: 1226px;
    margin: 0 auto;
}
.ribbon{ 
    position: absolute; 
    left: 120px;
    width: 60px; 
    height: 70px; 
    background-image: url(../images/tag-bg.png); 
    background-size: 100% 100%;
    color: #fff; 
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    padding: 10px 15px;
    z-index: 999;
}

.history-main{ 
    max-width: 1100px; 
    margin: 0 auto; 
    padding-top: 60px; 
    text-align: center; 
}
.history-main img{ 
    width: 1200px;
    height: 560px;
    object-fit: cover; 
    box-shadow: 0 10px 30px rgba(0,0,0,.15);
}
.history-caption{ 
    margin-top: 12px; 
    font-weight: 600; 
}

.history-timeline{ 
    margin-top: 30px; 
    position: relative; 
    padding: 10px 80px;
    max-width: 1226px;
    margin: 30px auto 0;
}

/* 顶部时间轴刻度线 */
.history-timeline::before{ 
    content: ""; 
    position: absolute; 
    left: 0; right: 0; top: 0; 
    height: 8px; 
    background: repeating-linear-gradient(
        to right,
        rgba(255,255,255,.9) 0 2px,
        rgba(255,255,255,0) 2px 16px
    );
    opacity: .9; 
    pointer-events: none; 
}
.history-timeline::after{ 
    content: ""; 
    position: absolute; 
    left: 0; right: 0; top: 8px; 
    height: 1px; 
    /* 虚线基线 */
    background: repeating-linear-gradient(
        to right,
        rgba(255,255,255,.85) 0 2px,
        rgba(255,255,255,0) 2px 4px
    ); 
    pointer-events: none; 
}

.history-nav{ 
    width: 36px; 
    height: 36px; 
    border-radius: 50%; 
    border: none; 
    position: absolute; 
    top: 50%; 
    transform: translateY(-150%); 
    /* background: rgba(0,0,0,0.05);  */
    background: rgba(0, 0, 0, 0);
    cursor: pointer; 
    font-size: 30px;
    font-weight: 600;
    color: #EEE;
}
.history-nav.prev{ left: 20px; }
.history-nav.next{ right: 20px; }

.timeline-track{ 
    display: flex; 
    gap: 28px; 
    overflow-x: hidden; 
    overflow-y: hidden; 
    position: relative; 
    color: #fff;
    top: -30px;
}

.timeline-item{ 
    min-width: 72px; 
    text-align: center; 
    cursor: pointer; 
    transition: transform .2s ease, opacity .2s ease; 
    opacity: 0.9; 
    position: relative; 
    padding: 46px 0; 
}
.timeline-item.active{ 
    opacity: 1; 
    /* transform: translateY(-4px);  */
    color: #e74c3c;
    font-weight: 600;
}
.timeline-item.active::before{ 
    content: ""; 
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-top: 10px solid #b21313;
}
.timeline-item.active::after{ 
    content: ""; 
    position: absolute;
    /* bottom: 25px; */
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-bottom: 10px solid #b21313;
}
.timeline-item .thumb{ 
    width: 72px; height: 48px; 
    border-radius: 4px; 
    overflow: hidden; 
    box-shadow: 0 6px 16px rgba(0,0,0,.12);
}
.timeline-item .thumb img{ 
    width: 100%; height: 100%; object-fit: cover; 
}
.timeline-item .year{ 
    display: block; 
    margin-top: 6px; 
    font-size: 12px; 
}

.history-bottom{ 
    text-align: center; 
    color: #fff; 
    padding: 40px 20px; 
}
.history-slogan-en{ 
    letter-spacing: 2px; 
    opacity: .9; 
}
.history-slogan-cn{ 
    font-size: 28px; font-weight: 700; 
}
.history-desc{ 
    max-width: 720px; 
    margin: 6px auto 0; 
    font-size: 12px; 
    line-height: 1.8; 
    opacity: .9; 
}

/* ===================== 品牌实力 ===================== */
.brand-strength{ 
    position: relative; 
    background: url(../images/bg-3.png) center / cover no-repeat; 
}
.strength-header{ 
    max-width: 1200px; 
    margin: 0 auto; 
    position: relative; 
}
.strength-tabs{ 
    display: flex; 
    gap: 10px; 
    justify-content: flex-end; 
    padding-right: 60px; 
    padding-top: 20px;
}
.strength-tabs .tab{ 
    background: rgba(0,0,0,0); 
    border: none; 
    padding: 10px; 
    cursor: pointer; 
    border-radius: 999px; 
    color: #333; 
}
.strength-tabs .tab.active{ 
    text-decoration: underline;
    text-underline-offset: 8px;
    text-decoration-thickness: 2px;
}
.strength-title{ 
    text-align: center; 
    margin-bottom: 40px; 
}
.strength-title .en{ 
    font-size: 12px; letter-spacing: 2px; opacity: .6; 
}
.strength-title .cn{ 
    font-size: 28px; margin: 8px 0; 
}
.strength-title .desc{ 
    font-size: 12px; opacity: .8; 
}

.strength-panels{ max-width: 1000px; margin: 0 auto; }
.strength-panel{ display: none; padding: 20px;}
.strength-panel.active{ display: block; }

.strength-grid{ 
    display: grid; 
    grid-template-columns: 1fr 1fr 1fr; 
    gap: 20px; 
    align-items: stretch; 
}
.strength-grid .col img{ width: 100%; height: 500px; object-fit: cover; display: block; }

.strength-grid .col-left .main{margin-top: 30px;}
.strength-grid .col-center .main{margin-bottom: 30px;}
.strength-grid .col-right .main{margin-top: 30px;}

.center-caption{ 
    text-align: center; 
    width: 275px;
    margin: 0 auto;
}
.cap-title{ font-weight: 700; }
.cap-sub{ 
    font-weight: 700;
    width: 100px;
    margin: 12px auto;
    font-size: 14px;
    border-bottom: 4px solid #E60707;
    padding-bottom: 10px;
}
.cap-desc{ font-size: 12px; opacity:.85; }

/* ======= 1024 ======= */
@media (max-width: 1024px){

}

/* ===================== 品牌故事 ===================== */
.brand-story {
    background: #fff;
}

.story-header {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    padding: 0 20px;
}

.story-title {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
    padding: 40px 0 0 0;
}

.story-title .en {
    font-size: 12px;
    letter-spacing: 2px;
    color: #666;
    margin-bottom: 8px;
}

.story-title .cn {
    font-size: 28px;
    color: #333;
    margin: 8px 0 16px 0;
    font-weight: 600;
}

.story-title .desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.view-more {
    color: #666;
    font-size: 14px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.view-more:hover {
    color: #e74c3c;
}

.view-more i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.view-more:hover i {
    transform: translateX(3px);
}

.story-videos {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 120px;
}

.videos-header {
    display: flex;
    justify-content: flex-end;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 20px 0;
}

.video-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.video-thumb {
    position: relative;
    height: 150px;
    overflow: hidden;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-item:hover .video-thumb img {
    transform: scale(1.05);
}

/* 添加渐变遮罩 */
.video-thumb::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
    pointer-events: none;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
}

.play-btn i {
    color: #fff;
    font-size: 18px;
    margin-left: 2px;
}

.video-item:hover .play-btn {
    /*background: #e74c3c;*/
    transform: translate(-50%, -50%) scale(1.1);
}

.video-item:hover .play-btn i {
    /*color: #fff;*/
}

/* 视频标题覆盖在缩略图上 */
.video-title {
    position: absolute;
    bottom: 15px;
    left: 15px;
    right: 15px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    z-index: 2;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-info {
    padding: 15px 20px 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.video-duration {
    color: #fff;
    font-size: 12px;
    margin-bottom: 5px;
    min-width: 80px;
    background: #911101;
    text-align: center;
    margin-right: 10px;
    border-radius: 20px;
}

.video-desc {
    flex: 1;
    font-size: 13px;
    color: #666;
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===================== 品牌活动 ===================== */
.brand-activity {
    background: #fff;
    position: relative;
    background: url(../images/bg-4.png) center / cover no-repeat;
}

.activity-header {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.activity-content {
    max-width: 1200px;
    padding: 60px 120px;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

.activity-header {
    display: flex;
    justify-content: flex-end;
}

.activity-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.activity-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    min-height: 200px;
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border-color: #ccc;
}

.card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    background-size: cover;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.activity-card:hover .card-bg {
    opacity: 1;
}

.card-content {
    position: relative;
    z-index: 2;
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.95);
    transition: background 0.3s ease;
}

.activity-card:hover .card-content {
    background: rgba(255, 255, 255, 0.9);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 12px;
    color: #666;
}

.card-meta .date {
    font-weight: 500;
}

.card-meta .category {
    background: #f5f5f5;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
}

.card-title {
    font-size: 16px;
    color: #333;
    margin: 0 0 auto 0;
    font-weight: 600;
    line-height: 1.4;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    color: #e74c3c;
    font-size: 14px;
    text-decoration: none;
    margin-top: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #c0392b;
}

/* ===================== 品牌合照 ===================== */
.brand-photo {
    background: #fff;
    padding-bottom: 60px;
}

.photo-image {
    width: 100%;
    margin-bottom: 40px;
    overflow: hidden;
}

.photo-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.photo-image:hover img {
    transform: scale(1.02);
}

.photo-content {
    text-align: center;
    padding: 0 40px;
}

.photo-text {
    max-width: 800px;
    margin: 0 auto;
    color: #C81D2B;
}

.text-cn {
    font-size: 30px;
    font-weight: 600;
    line-height: 1.8;
    letter-spacing: 4px;
}

.text-en {
    font-size: 12px;
    line-height: 1.8;
    letter-spacing: 0.5px;
    font-weight: 400;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .ribbon{
        left: 0;
        width: 54px;
        height: 60px;
        font-size: 12px;
    }

    .timeline-track{
        gap: 25px;
    }

    .history-nav.prev {
        left: 5px;
    }

    .history-nav.next {
        right: 5px;
    }

    .history-bottom{
        margin-bottom: -10px;
    }

    .brand-container {
        /* padding: 0 30px; */
    }
    
    .brand-profile {
        flex-direction: column;
        max-width: 800px;
        margin: 0 auto;
    }
    
    /* 品牌活动 1024px 适配 */
    .brand-activity {
        padding: 0 0 20px 0;
    }
    
    .activity-header {
        padding: 0 30px;
    }

    
    .activity-content {
        padding: 0 30px;
        margin-top: 30px;
    }
    
    .activity-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .activity-card {
        min-height: 180px;
    }
    
    .card-content {
        padding: 15px;
    }
    
    .card-title {
        font-size: 15px;
    }
    
    /* 品牌合照 1024px 适配 */
    .brand-photo {
        padding: 40px 0;
    }
    
    .photo-container {
        padding: 0 30px;
    }
    
    .photo-image {
        margin-bottom: 30px;
    }
    
    .photo-content {
        padding: 0 30px;
    }
    
    .text-cn {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .text-en {
        font-size: 14px;
    }

    /* 品牌实力 1024px 适配 */
    .strength-tabs{ padding-right: 20px; }
    .strength-grid .col-center .main{ height: 440px; }
    .col-left img, .col-right img{ height: 440px; }

    .history-main img{ height: 360px; }
    .history-timeline{ padding: 28px 60px 16px; }
    
    /* 品牌故事 1024px 适配 */
    .brand-story {
        /* padding: 40px 0; */
    }
    
    .story-header {
        padding: 0 30px;
    }
    
    .story-title {
        margin-left: 90px;
    }
    
    .story-title .cn {
        font-size: 24px;
    }
    
    .story-videos {
        padding: 0 30px;
    }
    
    .videos-header {
        margin-bottom: 15px;
    }
    
    .video-grid {
        gap: 20px;
    }
    
    .video-thumb {
        height: 180px;
    }
    
    .video-info {
        padding: 15px;
    }
    
    .video-title {
        font-size: 15px;
        bottom: 12px;
        left: 12px;
        right: 12px;
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .video-desc {
        font-size: 12px;
    }

}

@media (max-width: 768px) {
    .main-content {
        margin-top: 60px;
    }
    
    .brand-section {
        /* padding: 30px 0; */
    }
    
    .brand-container {
        /* padding: 0 15px; */
    }
    
    .brand-profile {
        border-radius: 15px;
        max-width: 100%;
    }
    
    /* 品牌实力 768px 适配 */
    /* .brand-strength{ padding: 40px 0 10px; } */
    .strength-grid{ grid-template-columns: 1fr; }
    .strength-grid .col-center .main{ height: 300px; }
    .col-left img, .col-right img{ height: 220px; }

    /* 品牌活动 768px 适配 */
    .brand-activity {
        /* padding: 30px 0; */
    }
    
    .activity-header {
        padding: 0 20px;
    }
    
    .activity-header .ribbon {
        /* position: static;
        margin-bottom: 20px; */
        display: inline-block;
    }
    
    .activity-content {
        padding: 0 20px;
        margin-top: 40px;
    }
    
    .activity-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .activity-card {
        min-height: 160px;
    }
    
    .card-content {
        padding: 15px;
    }
    
    .card-title {
        font-size: 16px;
    }
    
    /* 品牌合照 768px 适配 */
    .brand-photo {
        padding: 30px 0;
    }
    
    .photo-container {
        padding: 0 20px;
    }
    
    .photo-image {
        margin-bottom: 25px;
        border-radius: 8px;
    }
    
    .photo-content {
        padding: 0 20px;
    }
    
    .text-cn {
        font-size: 18px;
        margin-bottom: 12px;
        letter-spacing: 1px;
    }
    
    .text-en {
        font-size: 13px;
        line-height: 1.6;
    }

    .history-main{ padding: 10px 20px; }
    .history-main img{ height: 240px; }
    .history-timeline{ padding: 24px 60px 12px; }
    .timeline-item{ min-width: 64px; }
    .timeline-item .thumb{ width: 64px; height: 42px; }
    
    /* 品牌故事 768px 适配 */
    .brand-story {
        /* padding: 30px 0; */
    }
    
    .story-header {
        padding: 0 20px;
    }
    
    .story-header .ribbon {
        /* position: static;
        margin-bottom: 20px; */
        display: inline-block;
    }
    
    .story-title {
        margin-left: 0;
    }
    
    .story-title .cn {
        font-size: 20px;
    }
    
    .story-title .desc {
        font-size: 13px;
    }
    
    .story-videos {
        padding: 0 20px;
        margin-top: 30px;
    }
    
    .videos-header {
        margin-bottom: 15px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .video-thumb {
        height: 200px;
    }
    
    .video-info {
        padding: 15px;
    }
    
    .video-title {
        font-size: 16px;
        bottom: 12px;
        left: 12px;
        right: 12px;
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .video-desc {
        font-size: 13px;
    }
}