/* ============================================
   AI云营 内页通用样式
   ============================================ */

:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --secondary: #00CEC9;
    --accent: #FD79A8;
    --gradient-1: linear-gradient(135deg, #6C5CE7, #00CEC9);
    --gradient-2: linear-gradient(135deg, #FD79A8, #6C5CE7);
    --bg-dark: #F5F6FA;
    --bg-card: #FFFFFF;
    --text-primary: #1A1A2E;
    --text-secondary: #5A5A7A;
    --text-muted: #9A9ABF;
    --border: rgba(108, 92, 231, 0.15);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.page-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.4rem;
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.back-link {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--primary);
}

/* Main Content */
.page-main {
    padding: 48px 0 80px;
}

.page-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

/* Content Sections */
.content-section {
    margin-bottom: 48px;
}

.content-section h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}

.content-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 20px 0 12px;
    color: var(--text-primary);
}

.content-section p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.content-section ul,
.content-section ol {
    margin: 12px 0 20px 24px;
    color: var(--text-secondary);
}

.content-section li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.content-section code {
    background: rgba(108, 92, 231, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--primary);
}

.content-section pre {
    background: var(--text-primary);
    color: #fff;
    padding: 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 16px 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

.content-section pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: rgba(108, 92, 231, 0.3);
    box-shadow: var(--shadow-md);
}

.card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: rgba(108, 92, 231, 0.05);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

td {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(108, 92, 231, 0.1);
    color: var(--primary);
}

.badge-success {
    background: rgba(0, 206, 201, 0.1);
    color: var(--secondary);
}

.badge-warning {
    background: rgba(253, 121, 168, 0.1);
    color: var(--accent);
}

/* CTA Box */
.cta-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    margin: 48px 0;
}

.cta-box h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-box p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.cta-box .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.35);
}

/* Footer */
.page-footer {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
}

.page-footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 32px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-content {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.timeline-content ul {
    margin: 8px 0 0 20px;
}

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

/* Responsive */
@media (max-width: 767px) {
    .page-title {
        font-size: 1.5rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .content-section h2 {
        font-size: 1.2rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        padding: 24px 16px;
    }
}