/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    min-height: 100vh;
}

/* 流光渐变动画 */
@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 呼吸效果动画 */
@keyframes breathe {
    0%, 100% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.02);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    width: 100%;
}

/* 头部样式 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #007bff;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger div {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主内容样式 */
main {
    padding: 2rem 0;
}

/* 卡片样式 */
.card {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    width: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 文章列表样式 */
.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.article-item {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    width: 100%;
}

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

.article-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-item .content {
    padding: 1.5rem;
}

.article-item h2 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.article-item a {
    color: #333;
    text-decoration: none;
}

.article-item .meta {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 1rem;
}

/* 文章详情样式 */
.article-detail {
    max-width: 800px;
    margin: 0 auto;
}

.article-detail h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.article-detail .meta {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 2rem;
}

.article-detail .content {
    font-size: 1.125rem;
    line-height: 1.8;
}

/* 表单样式 */
form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
    text-decoration: none;
}

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

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #545b62;
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

/* 列表样式 */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

table th,
table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background-color: #f8f9fa;
    font-weight: bold;
}

table tr:last-child td {
    border-bottom: none;
}

/* 后台管理样式 */
.admin-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
    overflow: hidden;
}

.admin-sidebar {
    width: 250px;
    /* 流光渐变背景 */
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite, breathe 4s ease-in-out infinite;
    color: #fff;
    padding: 1.5rem;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    flex-shrink: 0;
    overflow-y: auto;
}

.admin-sidebar h2 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.admin-sidebar ul {
    list-style: none;
}

.admin-sidebar li {
    margin-bottom: 0.5rem;
}

.admin-sidebar a {
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 0.75rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.admin-sidebar a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.admin-sidebar a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.admin-content {
    flex: 1;
    padding: 1.5rem;
    background-color: #f5f5f5;
    overflow: auto;
    width: calc(100% - 250px);
    min-width: 0;
}

/* 确保表格在小屏幕上能滚动 */
.table-container {
    overflow-x: auto;
    width: 100%;
}

/* 弹窗自适应 */
.modal-content {
    width: 90%;
    max-width: 600px;
    margin: 10% auto;
}

/* 确保所有卡片和内容元素都能自适应 */
.card {
    width: 100%;
    box-sizing: border-box;
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        padding: 1rem;
    }
    
    .admin-content {
        width: 100%;
        padding: 1rem;
    }
    
    .article-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .admin-content {
        padding: 0.75rem;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* 提取码管理样式 */
.extraction-code-list {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.extraction-code-item {
    padding: 1rem;
    border-bottom: 1px solid #ddd;
}

.extraction-code-item:last-child {
    border-bottom: none;
}

.extraction-code-item .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.extraction-code-item .code {
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: bold;
}

.extraction-code-item .status {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
}

.status-pending {
    background-color: #ffc107;
    color: #212529;
}

.status-activated {
    background-color: #28a745;
    color: #fff;
}

.status-locked {
    background-color: #dc3545;
    color: #fff;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 2rem;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 8px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 1.5rem 0;
    }

    .hamburger {
        display: flex;
    }

    .article-list {
        grid-template-columns: 1fr;
    }

    .admin-container {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        padding: 1rem;
    }

    .admin-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .article-item .content {
        padding: 1rem;
    }

    .article-detail h1 {
        font-size: 1.5rem;
    }

    .article-detail .content {
        font-size: 1rem;
    }
}

/* 统计数据样式 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    margin-bottom: 1rem;
    color: #343a40;
    font-size: 1.25rem;
}

.stat-card p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: #6c757d;
}

.stat-card strong {
    color: #007bff;
    font-size: 1.5rem;
}

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

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: 0.25rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-3 {
    padding: 1rem;
}

.p-4 {
    padding: 1.5rem;
}

/* 加载状态 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 消息提示 */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}