/* ==========================================================================
   1. 基础重置与全局变量
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff4a5a;    /* 影视站常用的高亮主色调 */
    --bg-color: #141414;         /* 暗黑模式背景，更具高级院线感 */
    --text-color: #ffffff;
    --text-muted: #999999;
    --card-bg: #202020;
    --border-color: #333333;
    --max-width: 1200px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding-bottom: 60px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-color);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 布局容器 */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 15px;
}

/* ==========================================================================
   2. 公共导航（Header）与底部（Footer）
   ========================================================================== */
.header {
    background-color: rgba(255, 255, 255, 0.95); /* 已经改为白色背景 */
    border-bottom: 1px solid #e5e5e5;             /* 匹配白色背景的浅色边框 */
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);    /* 淡淡的阴影提升白底质感 */
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav {
    display: flex;
    gap: 20px;
}

.nav a {
    font-size: 16px;
    font-weight: 500;
    color: #333333; /* 导航文字颜色改为深色，确保白底清晰可见 */
}

.nav a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

/* 搜索框 */
.search form {
    display: flex;
    align-items: center;
}

.search input {
    background-color: #f5f5f5; /* 搜索框内部背景改为浅色 */
    border: 1px solid #dddddd; /* 浅色边框 */
    color: #333333;            /* 输入文字改为深色 */
    padding: 8px 12px;
    border-radius: 4px 0 0 4px;
    outline: none;
}

.search button {
    background-color: var(--primary-color);
    border: none;
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

/* 底部 */
.footer {
    margin-top: 50px;
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

/* ==========================================================================
   3. 首页样式（Index）与视频网格
   ========================================================================== */
.main {
    margin-top: 30px;
}

section {
    margin-bottom: 40px;
}

section h2, .box-title h3 {
    font-size: 22px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
    padding-left: 10px;
}

.box-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.box-title a {
    color: var(--text-muted);
    font-size: 14px;
}

/* 响应式标准视频网格（默认 PC 端 6 列，幻灯片 5 列） */
.grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.video-list {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.video-item, .item {
    background-color: var(--card-bg);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    transition: transform 0.3s ease;
}

.video-item:hover, .item:hover {
    transform: translateY(-5px);
}

.video-item .pic, .item a {
    position: relative;
    display: block;
    aspect-ratio: 3 / 4; /* 固定封面黄金比例 */
}

.video-item .pic img, .item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 视频右上角/右下角角标（如：更新至12集/高清） */
.remarks {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 10px 8px 5px;
    font-size: 12px;
    color: var(--primary-color);
    text-align: right;
}

.video-item .title {
    padding: 10px;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==========================================================================
   4. 详情页样式（Detail）
   ========================================================================== */
.vod-info {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

.vod-poster {
    flex: 0 0 240px;
    border-radius: 8px;
    overflow: hidden;
}

.vod-detail {
    flex: 1;
}

.vod-detail h1 {
    font-size: 28px;
    margin-bottom: 15px;
}

.vod-detail p {
    color: var(--text-muted);
    margin-bottom: 8px;
    font-size: 15px;
}

.vod-detail .story {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    color: #ccc;
}

/* 播放列表区块 */
.play-lists {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
}

.play-source {
    margin-bottom: 25px;
}

.play-source h4 {
    margin-bottom: 15px;
    color: #fff;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.episode-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.episode-list a {
    background-color: #333;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    min-width: 70px;
    text-align: center;
}

.episode-list a:hover, .episode-list a.active {
    background-color: var(--primary-color);
    color: #fff;
}

/* ==========================================================================
   5. 播放页样式（Play）
   ========================================================================== */
.player-wrapper {
    width: 100%;
    background-color: #000;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

/* 16:9 响应式播放器容器 */
.player-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
}

.player-box iframe, .player-box video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.playlist-sidebar {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
}

.playlist-sidebar h3 {
    margin-bottom: 15px;
    font-size: 18px;
}


/* ==========================================================================
   二、 媒体查询（Media Queries）- 完美响应式适配
   ========================================================================== */

/* 1. 平板电脑与大屏手机端 (小于 1024px) */
@media (max-width: 1024px) {
    .grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .video-list {
        grid-template-columns: repeat(4, 1fr);
    }
    .vod-poster {
        flex: 0 0 200px;
    }
}

/* 2. 手机横屏或中等屏幕 (小于 768px) */
@media (max-width: 768px) {
    .header .container {
        height: auto;
        flex-direction: column;
        padding: 15px;
        gap: 10px;
        background-color: #ffffff; /* 确保手机端垂直排列时也是白色背景 */
    }
    
    .nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .search {
        width: 100%;
    }
    
    .search form {
        width: 100%;
    }
    
    .search input {
        flex: 1;
    }

    .grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    .video-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    /* 详情页重排为上下垂直布局 */
    .vod-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .vod-poster {
        flex: none;
        width: 180px;
    }
}

/* 3. 纯手机端竖屏 (小于 480px) */
@media (max-width: 480px) {
    .grid {
        grid-template-columns: repeat(2, 1fr); /* 手机端一排显示2个视频，最适合单手滑动查看 */
        gap: 10px;
    }
    .video-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    section h2, .box-title h3 {
        font-size: 18px;
    }
    
    .episode-list a {
        padding: 6px 12px;
        font-size: 13px;
        flex: 1 1 calc(33.33% - 10px); /* 手机端让剧集按钮平铺分布 */
        min-width: 60px;
    }
}