/* 全局样式 - 清新科技风 */
:root {
    --primary-gradient: linear-gradient(135deg, #3B82F6 0%, #06B6D4 100%); /* 蓝青渐变 */
    --primary-color: #3B82F6;
    --hover-gradient: linear-gradient(135deg, #2563EB 0%, #0891B2 100%);
    --bg-color: #F0F4F8; /* 冷调灰白背景 */
    --text-main: #1F2937;
    --text-sub: #6B7280;
    --card-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.1), 0 8px 10px -6px rgba(59, 130, 246, 0.1);
    --hover-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.15), 0 10px 10px -5px rgba(59, 130, 246, 0.1);
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-color);
}

/* 限制内容宽度并居中 */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* 搜索容器样式 - 极简白底 */
.search-container {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px); /* 毛玻璃效果 */
    -webkit-backdrop-filter: blur(12px);
    padding: 60px 0 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    margin-bottom: 30px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}

.search-box {
    background: #fff;
    border: 2px solid #E5E7EB; /* 默认浅灰边框 */
    border-radius: 50px;
    padding: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    display: flex;
    overflow: hidden;
    transition: all 0.3s ease;
}

/* 搜索框聚焦态 - 科技蓝光晕 */
.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.search-input {
    border: none;
    outline: none !important;
    padding: 12px 25px;
    font-size: 16px;
    border-radius: 50px 0 0 50px;
    flex: 1;
    color: var(--text-main);
}

.search-input::placeholder {
    color: #9CA3AF;
}

.search-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 10px 40px;
    border-radius: 50px; /* 全圆角胶囊按钮 */
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    letter-spacing: 1px;
    margin-right: -2px; /* 贴合边框 */
}

.search-btn:hover {
    background: var(--hover-gradient);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* 云盘按钮组样式 */
.cloud-btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin-top: 20px;
}

.cloud-btn {
    border: 1px solid #E5E7EB;
    color: var(--text-sub);
    background: #fff;
    padding: 8px 18px;
    border-radius: 12px; /* 略微方一点的圆角，更有科技感 */
    transition: all 0.2s ease;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
}

.cloud-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

/* 激活态通用样式 */
.cloud-btn.active {
    font-weight: 600;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* 百度网盘 - 科技蓝 */
.cloud-btn[data-res-type="baidu"]:hover,
.cloud-btn[data-res-type="baidu"].active {
    border-color: #2932e1;
    color: #2932e1;
    background-color: rgba(41, 50, 225, 0.05);
}

/* 阿里网盘 - 活力橙 */
.cloud-btn[data-res-type="aliyundrive"]:hover,
.cloud-btn[data-res-type="aliyundrive"].active,
.cloud-btn[data-res-type="ali"]:hover,
.cloud-btn[data-res-type="ali"].active {
    border-color: #FF6A00;
    color: #FF6A00;
    background-color: rgba(255, 106, 0, 0.05);
}

/* 夸克网盘 - 极客紫 */
.cloud-btn[data-res-type="quark"]:hover,
.cloud-btn[data-res-type="quark"].active {
    border-color: #6844e0;
    color: #6844e0;
    background-color: rgba(104, 68, 224, 0.05);
}

/* 迅雷网盘 - 深海蓝 */
.cloud-btn[data-res-type="xunlei"]:hover,
.cloud-btn[data-res-type="xunlei"].active {
    border-color: #0086ff;
    color: #0086ff;
    background-color: rgba(0, 134, 255, 0.05);
}

/* 结果卡片样式优化 */
.card {
    border: none !important;
    border-radius: 16px !important;
    box-shadow: var(--card-shadow) !important;
    transition: all 0.3s ease !important;
    background: #fff;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--hover-shadow) !important;
}

/* 返回顶部按钮 */
#back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    display: none;
    z-index: 999;
    width: 50px;
    height: 50px;
    background: var(--primary-gradient); /* 使用主渐变 */
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4); /* 蓝色阴影 */
    transition: all 0.3s ease;
    border: none;
    outline: none;
}

#back-to-top:hover {
    background: var(--hover-gradient);
    transform: translateY(-5px) rotate(360deg); /* 增加一点微动效 */
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

@media (max-width: 768px) {
    #back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        line-height: 40px;
    }
    
    .search-container {
        padding: 25px 0 15px; /* 进一步缩减间距 */
    }

    .search-box {
        display: flex !important;
        flex-direction: row !important; /* 强制横向排列 */
        align-items: center;
        border-width: 1.5px;
        padding: 2px;
        margin: 0 10px;
        max-width: 95%; 
        margin-left: auto;
        margin-right: auto;
    }
    
    .search-input {
        flex: 1; /* 占据剩余空间 */
        padding: 8px 12px;
        font-size: 14px;
        background: transparent;
    }
    
    .search-btn {
        padding: 8px 18px;
        font-size: 14px;
        white-space: nowrap; /* 防止文字换行 */
        border-radius: 50px;
        margin: 0;
    }

    .cloud-btn-group {
        justify-content: center;
        gap: 6px;
        padding: 0 10px;
    }

    .cloud-btn {
        padding: 5px 8px;
        font-size: 12px;
        border-radius: 8px;
    }
}