/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    background-color: #2c3e50;
    color: #fff;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 15px;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.nav-link:hover {
    background-color: #34495e;
}

/* 主要内容样式 */
.main {
    padding: 40px 0;
    min-height: calc(100vh - 140px);
}

.intro {
    text-align: center;
    margin-bottom: 50px;
    padding: 30px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.intro h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2rem;
}

.intro p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: #555;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 25px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: #3498db;
    color: #fff;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background-color: #95a5a6;
    color: #fff;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-danger {
    background-color: #e74c3c;
    color: #fff;
}

.btn-danger:hover {
    background-color: #c0392b;
}

/* 特性列表 */
.features {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.features h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.5rem;
}

.feature-list {
    list-style-type: none;
    max-width: 600px;
    margin: 0 auto;
}

.feature-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    margin-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li:before {
    content: "✓";
    color: #27ae60;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* 卡片样式 */
.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    background-color: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.card-header h3 {
    margin: 0;
    font-size: 1.2rem;
    color: #2c3e50;
}

.card-body {
    padding: 20px;
}

.card-footer {
    background-color: #f8f9fa;
    padding: 15px 20px;
    border-top: 1px solid #eee;
    text-align: right;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

.table tr:hover {
    background-color: #f8f9fa;
}

/* 消息样式 */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* 验证页面样式 */
.verify-container {
    max-width: 500px;
    margin: 50px auto;
    padding: 30px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.verify-title {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.verify-form {
    margin-bottom: 20px;
}

.verify-btn {
    width: 100%;
    margin-top: 10px;
}

/* IFrame容器样式 */
.iframe-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 100px);
    overflow: hidden;
}

.iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 后台管理样式 */
.admin-container {
    display: flex;
    min-height: calc(100vh - 100px);
}

.admin-sidebar {
    width: 250px;
    background-color: #2c3e50;
    color: #fff;
    padding: 20px 0;
}

.admin-sidebar h3 {
    padding: 0 20px;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.admin-menu {
    list-style-type: none;
}

.admin-menu li {
    margin-bottom: 5px;
}

.admin-menu a {
    display: block;
    padding: 12px 20px;
    color: #ecf0f1;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.admin-menu a:hover,
.admin-menu a.active {
    background-color: #34495e;
}

.admin-content {
    flex: 1;
    padding: 30px;
    background-color: #f4f7f9;
}

.admin-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.admin-header h2 {
    color: #2c3e50;
    font-size: 1.8rem;
}

/* 嵌入链接列表样式 */
.embed-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.embed-item {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.embed-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.embed-item-header {
    background-color: #3498db;
    color: #fff;
    padding: 15px;
}

.embed-item-header h4 {
    margin: 0;
    font-size: 1.1rem;
}

.embed-item-body {
    padding: 15px;
}

.embed-item-info {
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: #666;
}

.embed-item-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.embed-link {
    font-weight: 500;
    color: #3498db;
    word-break: break-all;
    font-size: 0.9rem;
}

/* 复制按钮样式 */
.copy-btn {
    transition: all 0.3s ease;
}

.copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.copy-btn:active {
    transform: translateY(0);
}

/* 复制成功状态 */
.bg-success {
    background-color: #28a745 !important;
}

.text-white {
    color: #fff !important;
}

.border-success {
    border-color: #28a745 !important;
}

/* 响应式调整 */
@media (max-width: 480px) {
    .embed-item-body .flex {
        flex-direction: column;
        gap: 10px;
    }
    
    .embed-item-body .ml-2 {
        margin-left: 0 !important;
        margin-top: 5px;
        width: 100%;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        padding: 15px 0;
    }
    
    .admin-menu {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .admin-menu li {
        margin: 0 5px 5px 0;
    }
    
    .admin-menu a {
        padding: 8px 15px;
        border-radius: 4px;
    }
    
    .embed-list {
        grid-template-columns: 1fr;
    }
    
    .iframe-container {
        height: 600px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .main {
        padding: 20px 0;
    }
    
    .intro,
    .features,
    .verify-container {
        padding: 20px;
    }
    
    .btn {
        width: 100%;
    }
    
    .embed-item-actions {
        flex-direction: column;
    }
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(52, 152, 219, 0.3);
    border-radius: 50%;
    border-top-color: #3498db;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 文本辅助类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: #6c757d;
}

.text-danger {
    color: #dc3545;
}

.text-success {
    color: #28a745;
}

.text-primary {
    color: #007bff;
}

/* 边距辅助类 */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 1rem; }
.ml-4 { margin-left: 1.5rem; }
.ml-5 { margin-left: 3rem; }

.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 1rem; }
.mr-4 { margin-right: 1.5rem; }
.mr-5 { margin-right: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }