* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif; min-width: 1200px; background: #f4f8ff; }

/* Banner区域 */
#banner {
    width: 100%;
}
#banner img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

/* 特色卡片 */
.feature-card-wrap {
    width: 100%;
    padding-bottom: 10px;
    background: url('../images/feature-bg.png') no-repeat center/cover;
}
.feature-card {
    width: 1200px;
    min-height: 440px;
    margin: 80px auto 100px;
    border-radius: 24px;
    box-shadow: 0 0 50px rgba(0,0,0,0.12);
    position: relative;
    z-index: 2;
}
.feature-left {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 684px;
    height: 549px;
    background: url('../images/feature-left.png') no-repeat center/cover;
}
.feature-left-empty {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 684px;
    height: 549px;
    background: url('../images/feature-left-empty.png') no-repeat center/cover;
}
.feature-left-empty p {
    position: absolute;
    left: 80px;
}
.feature-left-empty .feature-title {
    top: 220px;
    font-size: 48px;
    line-height: 60px;
    color: #333;
}
.feature-left-empty .feature-desc {
    top: 360px;
    color: #fff;
    background: linear-gradient(87deg, #59B5FF 0%, #1079FF 100%);
    padding: 8px 10px;
    border-radius: 8px;
}
.feature-right {
    width: 100%;
    padding: 40px 50px 40px 734px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.feature-right h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 25px;
    font-weight: bold;
}
.feature-right p {
    line-height: 2.4;
    color: #555;
    font-size: 14px;
    margin-bottom: 15px;
    text-align: justify;
}

/* 橙色寄语区域 */
.orange-banner {
    background: url('../images/orange-bg.png') no-repeat center/cover;
    padding: 45px 0 150px;
    text-align: center;
}
.orange-banner h3 {
    width: 296px;
    height: 44px;
    font-family: 'Source Han Sans CN', 'Microsoft YaHei', sans-serif;
    font-weight: 500;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 44px;
    text-align: center;
    background: url('../images/title-bg.png') no-repeat center/cover;
    background-size: 296px 44px;
    display: inline-block;
    margin-bottom: 24px;
}
.orange-banner p {
    font-size: 17px;
    color: rgba(255,255,255,0.9);
}
.orange-banner .orange-title {
    font-family: 'Source Han Sans CN', 'Microsoft YaHei', sans-serif;
    font-weight: bold;
    font-size: 42px;
    line-height: 42px;
    color: #501800;
    text-align: center;
}
.orange-banner .orange-desc {
    font-family: 'Source Han Sans CN', 'Microsoft YaHei', sans-serif;
    font-weight: 400;
    font-size: 26px;
    color: #010101;
    line-height: 38px;
    margin-top: 21px;
}

/* 主持人卡片 */
.host-card {
    width: 1400px;
    padding: 32px 23px;
    margin: -80px auto 60px;
    background: #FFFFFF;
    border-radius: 20px;
    display: flex;
    box-shadow: 0px 3px 54px 0px #E6E6E6;
    box-sizing: border-box;
}
.host-left {
    width: 789px;
    height: 471px;
    border-radius: 8px;
}
.host-left img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.host-right {
    width: 535px;
    height: 471px;
    background: #F1F6FF;
    border-radius: 8px;
    margin-left: 30px;
}
.host-right h4 {
    font-weight: 500;
    font-size: 24px;
    color: #FFFFFF;
    background: linear-gradient(87deg, #1079FF 0%, #59B5FF 100%);
    border-radius: 8px;
    text-align: center;
    line-height: 49px;
}
.host-list {
    list-style: none;
    padding: 5px 20px 0;
    max-height: 422px;
    overflow: hidden;
}
.host-list li {
    padding: 20px 10px 20px 10px;
    border-bottom: 1px dashed #60657B;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.host-list li:last-child {
    border-bottom: none;
}
.host-list li a {
    text-decoration: none;
    flex: 1;
    font-weight: 400;
    font-size: 24px;
    color: #565759;
    line-height: 24px;
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    padding-right: 10px;
}
.host-list li img {
    width: 28px;
    height: 28px;
}

/* 精选节目 */
.video-section {
    background: #f5f9ff;
    padding: 60px 0;
}
.video-section .section-title {
    width: 1200px;
    margin: 0 auto 30px;
    display: flex;
    align-items: flex-end;
}
.video-section .section-title h2 {
    font-size: 38px;
    color: #000;
    font-weight: bold;
    margin: 0;
    line-height: 38px;
}
.video-section .section-title p {
    color: #999;
    font-size: 24px;
    margin-left: 34px;
    line-height: 24px;
    font-weight: 500;
}
.video-section .section-title img.divider {
    display: block;
    margin: 15px 0;
    max-width: 100%;
}
.video-tabs {
    width: 1200px;
    margin: 0 auto 35px;
    display: flex;
    justify-content: flex-start;
    gap: 20px;
}
.video-tab {
    padding: 10px 40px;
    background: transparent;
    border-radius: 25px;
    font-size: 20px;
    color: #666;
    cursor: pointer;
}
.video-tab.active {
    background: #DAF0FF;
    color: #006EFF;
}
.video-grid {
    width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: grid;
}
.video-card {
    background: white;
    border-radius: 6px;
}
.video-card img {
    width: 100%;
    display: block;
}
.video-info {
    padding: 19px 15px;
    height: 110px;
    box-sizing: border-box;
}
.video-info h5 {
    font-size: 14px;
    color: #333;
    margin-bottom: 8px;
    font-weight: normal;
}
.video-info p {
    font-size: 12px;
    color: #999;
}

/* 往期节目 */
.school-section {
    padding: 60px 0;
}
.school-section .section-title {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}
.school-section .section-title .title-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.school-section .section-title img.left-img, .school-section .section-title img.right-img {
    width: 291px;
    height: auto;
    object-fit: contain;
}
.school-section .section-title h2 {
    font-size: 38px;
    color: #000;
    font-weight: bold;
    margin: 0;
}
.school-section .section-title p {
    color: #999;
    font-size: 24px;
    margin: 13px 0 0;
}
.year-filter {
    width: 1200px;
    margin: 0 auto 35px;
    padding: 20px 30px;
    background: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.year-filter span {
    font-size: 14px;
    color: #666;
}
.year-filter .year-btn {
    padding: 10px 40px;
    background: transparent;
    border-radius: 25px;
    font-size: 20px;
    color: #666;
    cursor: pointer;
}
.year-filter .year-btn.active {
    background: #DAF0FF;
    color: #006EFF;
}

.year-tabs {
    width: 1200px;
    margin: 0 auto 35px;
    padding: 20px 30px;
    background: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.year-tab {
    padding: 10px 40px;
    background: transparent;
    border-radius: 25px;
    font-size: 20px;
    color: #666;
    cursor: pointer;
}
.year-tab.active {
    background: #DAF0FF;
    color: #006EFF;
}

.sub-tabs {
    width: 1200px;
    margin: 0 auto 20px;
    display: flex;
    gap: 20px;
}
.sub-tab {
    padding: 10px 30px;
    background: transparent;
    border-radius: 25px;
    font-size: 18px;
    color: #666;
    cursor: pointer;
    border: 1px solid #ddd;
}
.sub-tab.active {
    background: #DAF0FF;
    color: #006EFF;
    border-color: #006EFF;
}

.year-content {
    display: none;
}
.year-content.active {
    display: block;
}
.sub-content {
    display: none;
}
.sub-content.active {
    display: grid;
}
.school-grid {
    width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.school-card {
    background: white;
    border-radius: 6px;
}
.school-card img {
    width: 100%;
    display: block;
}
.school-info {
    padding: 19px 15px;
    height: 110px;
    box-sizing: border-box;
}
.school-info h5 {
    font-size: 14px;
    color: #333;
    margin-bottom: 8px;
    font-weight: normal;
}
.school-info p {
    color: #999;
    font-size: 12px;
}