@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: #f8fafc;
    line-height: 1.6;
    color: #1e293b;
}

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

nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-link {
    color: #475569;
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #2563eb;
    transition: width 0.2s;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-primary {
    background-color: #2563eb;
    color: white;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-primary:hover {
    background-color: #1d4ed8;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.btn-secondary {
    background-color: white;
    color: #374151;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid #e5e7eb;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
}

.btn-secondary:hover {
    background-color: #f9fafb;
}

.card {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
    overflow: hidden;
    cursor: pointer;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.card-img {
    width: 100%;
    height: 192px;
    object-fit: cover;
}

.card-body {
    padding: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-excerpt {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    color: #9ca3af;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background-color: #dbeafe;
    color: #1d4ed8;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
}

.footer {
    background-color: #1e293b;
    color: #94a3b8;
    padding: 60px 0 30px;
}

.footer-link {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-link:hover {
    color: white;
}

.footer-title {
    color: white;
    font-weight: 600;
    margin-bottom: 16px;
}

.icp-link {
    color: #60a5fa;
    text-decoration: none;
    transition: color 0.2s;
}

.icp-link:hover {
    color: #93c5fd;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.page-item {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    color: #4b5563;
    cursor: pointer;
    transition: all 0.2s;
}

.page-item:hover {
    background-color: #eff6ff;
    color: #2563eb;
    border-color: #dbeafe;
}

.page-item.active {
    background-color: #2563eb;
    color: white;
    border-color: #2563eb;
}

.page-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 4px;
}

.form-input {
    width: 100%;
    padding: 8px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    transition: all 0.2s;
}

.form-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.25);
    border-color: #2563eb;
}

.form-textarea {
    width: 100%;
    padding: 8px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    transition: all 0.2s;
    resize: none;
}

.form-textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.25);
    border-color: #2563eb;
}

.category-tag {
    display: inline-block;
    padding: 6px 12px;
    background-color: #f3f4f6;
    color: #4b5563;
    border-radius: 9999px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.category-tag:hover {
    background-color: #dbeafe;
    color: #2563eb;
}

.category-tag.active {
    background-color: #2563eb;
    color: white;
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 48px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 4px solid #e5e7eb;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.empty-state {
    text-align: center;
    padding: 48px;
}

.empty-icon {
    color: #d1d5db;
    margin-bottom: 16px;
}

.empty-text {
    color: #6b7280;
}

.breadcrumb {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 24px;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 8px;
    color: #d1d5db;
}

.breadcrumb-link {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb-link:hover {
    color: #2563eb;
}

.detail-content {
    color: #374151;
    line-height: 1.8;
}

.detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.detail-content p {
    margin-bottom: 16px;
}

.detail-content h1,
.detail-content h2,
.detail-content h3 {
    margin-top: 24px;
    margin-bottom: 12px;
    font-weight: 600;
    color: #1f2937;
}

.detail-content ul,
.detail-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.detail-content li {
    margin-bottom: 4px;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .card-img {
        height: 160px;
    }
    
    .nav-links {
        display: none;
    }
}