* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}
body {
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
}
.container {
    width: 100%;
    max-width: 1200px;
    height:735px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    transition: all 0.3s ease;
    position:relative;
    z-index: 1;
}
.container:hover {
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.15);
}

.tabs {
    display: flex;
    background: linear-gradient(90deg, #1a422d 0%,#0c822b 50%,#1b9e3e 100%);
    justify-content: space-around;
    position: relative;
}

.tab {
    flex: 1;
    text-align: center;
    padding: 20px 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1); /* 更流畅的贝塞尔曲线过渡 */
    position: relative;
    z-index: 1;
    margin: 0; /* 移除边距 */
    background: transparent; /* 初始透明背景 */
}

.tab:hover {
    color: white;
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.2); /* 半透明白色背景 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.tab.active {
    color: white;
    background: rgba(255, 255, 255, 0.3);
}

.indicator {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: #ffcc00;
    border-radius: 2px 2px 0 0;
    transition: all 0.3s ease;
}

.content {
    padding: 20px;
    min-height: 500px;
    display: none;
    animation: fadeIn 0.6s ease;
}

.content.active {
    display: block;
    opacity: 1;
}

.content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 新增外层容器样式 */
.outer-container {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.outer-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.2));
    z-index: -1;
    transition: all 0.3s ease;
}

.outer-container:hover::before {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.1));
}
/* 新增标题样式 */
.title {
    opacity: 0;
    transition: opacity 1s ease-in-out;
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}
@media (max-width: 768px) {
    .tab {
        margin: 0;
    }
    .indicator {
        display: none;
    }
    .content {
        padding: 25px;
    }
    .title {
        font-size: 2rem;
    }
}
#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9); /* 背景颜色，可根据需要调整 */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

.loader {
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader-circle {
    width: 15px;
    height: 15px;
    background: #333;
    margin: 0 5px;
    border-radius: 50%;
    animation: loader 1.2s infinite;
}

.loader-circle:nth-child(1) {
    animation-delay: -0.4s;
}

.loader-circle:nth-child(2) {
    animation-delay: -0.2s;
}

.loader-circle:nth-child(3) {
    animation-delay: 0;
}

@keyframes loader {
    0%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    50% {
        transform: scale(1);
        opacity: 1;
    }
}