/* 1. 重置一些默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 浅色主题（默认） */
:root {
    --bg-color: #f4f7f6;
    --card-bg: #fff;
    --card-hover-bg: #fafafa;
    --text-color: #333;
    --text-secondary: #717882;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
}

/* 系统暗色主题 */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme='light']) {
        --bg-color: #242424;
        --card-bg: #404040;
        --card-hover-bg: #4a4a4a;
        --text-color: #ffffff;
        --text-secondary: #e0e0e0;
        --shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.2);
    }
}

/* 手动暗色主题 */
:root[data-theme='dark'] {
    --bg-color: #242424;
    --card-bg: #404040;
    --card-hover-bg: #4a4a4a;
    --text-color: #ffffff;
    --text-secondary: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 使用CSS变量应用样式 */
body {
    font-family: 'Ubuntu', 'ZCOOL KuaiLe', sans-serif;
    font-weight: 400;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 3. 页面头部 */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Arial', sans-serif;
    color: #444;
    margin-bottom: 10px;
}

/* 4. 搜索框 */
.search-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 50px;
    width: 100%;
}

/* 搜索框包装器 */
.search-wrapper {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    max-width: 800px;
    margin-left: auto;
    margin-right: 20px;
}

.brand-text {
    font-family: 'Audiowide', cursive;
    font-size: 1.8rem;
    color: var(--text-color);
    white-space: nowrap;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    background: linear-gradient(180deg, var(--text-color) 30%, #007BFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding: 5px 0;
}

.search-box-container {
    position: relative;
    margin-left: auto;
    margin-right: 20px;
}

#searchBox {
    width: 45px;
    padding-right: 35px;
    margin: 0;
    background-color: var(--card-bg);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    padding: 12px;
    height: 45px;
    box-shadow: var(--shadow);
    transition: width 0.3s ease;
    color: var(--text-color);
}

.search-icon {
    position: absolute;
    right: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

#searchBox::placeholder {
    color: var(--text-secondary);
}

#searchBox:focus {
    outline: none;
    box-shadow: var(--shadow-hover);
}

#searchBox:hover,
#searchBox:focus {
    width: 400px;
}

/* 5. 网站卡片样式 */
.card {
    background-color: var(--card-bg);
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 0;
    transition: all 0.3s ease;
    cursor: pointer;
    padding: 8px 0;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    background-color: var(--card-hover-bg);
}

.card-body {
    padding: 10px 15px;
}

.card-title {
    font-family: 'Ubuntu', 'ZCOOL KuaiLe', sans-serif;
    font-weight: 500;
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 5px;
    transition: color 0.2s;
}

.card-text {
    font-family: 'Ubuntu', 'ZCOOL KuaiLe', sans-serif;
    font-weight: 400;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.4;
}

.btn {
    background-color: #007BFF;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

/* 6. 网格布局 */
.row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.col-md-4 {
    flex: 1 1 calc(33.333% - 20px);
    max-width: calc(33.333% - 20px);
}

@media (max-width: 768px) {
    .col-md-4 {
        flex: 1 1 100%;
        max-width: 100%;
    }
}

/* 7. 响应式设计 */
@media (max-width: 992px) {
    .container {
        padding: 0 25px;
    }

    #searchBox {
        font-size: 14px;
        padding: 10px 12px;
    }

    .card-body {
        padding: 15px;
    }
}

/* 卡片链接样式 */
.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link:hover {
    text-decoration: none;
    color: inherit;
}

/* 暗主题 */
[data-theme="dark"] body {
    background-color: #303030;
    color: #e0e0e0;
}

[data-theme="dark"] .card {
    background-color: #2c2c2c;
    color: #ffffff;
}

[data-theme="dark"] .card:hover {
    background-color: #4a4a4a;
}

[data-theme="dark"] .card-title {
    color: #ffffffe7;
}

[data-theme="dark"] .card-text {
    color: #e0e0e0d2;
}

[data-theme="dark"] #searchBox {
    background-color: #2c2c2c;
    color: #ffffff;
}

[data-theme="dark"] #searchBox::placeholder {
    color: #a0a0a0;
}

/* 搜索框与卡片集合之间的间距 */
#websiteCollection {
    margin-top: 30px;
}

/* 主题切换按钮样式 */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.theme-toggle button {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    background-color: var(--card-bg);
    color: var(--text-color);
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-hover);
}

.video-card {
    margin-bottom: 2rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.video-container {
    position: relative;
    padding-bottom: 62.5%; /* 16:10 比例 (10/16 = 0.625) */
    height: 0;
    overflow: hidden;
    margin-bottom: 1rem;
}

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

.btn {
    background-color: #007BFF;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    transition: background-color 0.3s ease;
    margin-top: 10px;
    /* 添加上边距 */
}

[data-theme="dark"] {
    --background-color: #1c1c1c;
    /* ... 其他深色模式的变量 ... */
}

/* 或者如果你直接设置背景色，可以这样写： */
[data-theme="dark"] body {
    background-color: #1c1c1c;
}

.download-button {
    position: fixed;
    top: 15px;
    right: 20px;
    z-index: 1000;
}

.download-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 8px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    width: 36px;
    overflow: hidden;
    white-space: nowrap;
    box-shadow: var(--shadow);
}

.download-link:hover,
.download-link:focus {
    width: 130px;
    box-shadow: var(--shadow-hover);
}

.download-link svg {
    min-width: 20px;
}

.download-link:hover:after,
.download-link:focus:after {
    content: "下载中心";
    margin-left: 8px;  /* 添加文字和图标之间的间距 */
}

/* 密码弹窗样式 */
.password-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    width: 300px;
}

.modal-content h3 {
    color: var(--text-color);
    margin-bottom: 15px;
    text-align: center;
}

.modal-content input {
    width: 100%;
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--text-secondary);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.modal-buttons {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.modal-buttons button {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#submitPassword {
    background-color: #007BFF;
    color: white;
}

#submitPassword:hover {
    background-color: #0056b3;  /* 更深的蓝色 */
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#cancelPassword {
    background-color: var(--card-hover-bg);
    color: var(--text-color);
}

#cancelPassword:hover {
    background-color: var(--text-secondary);
    color: var(--card-bg);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.modal-buttons button:hover {
    opacity: 0.9;
}

.notification-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.notification-content {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    max-width: 600px;
    margin: 20px;
}

.notification-content p {
    margin-bottom: 15px;
    color: var(--text-color);
}