.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

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

.page-hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(212, 175, 55, 0.2);
    color: var(--gold-light);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.page-hero-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.page-hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    line-height: 1.8;
}

.page-content {
    padding: 80px 0;
    background: var(--bg-light);
    min-height: 500px;
}

.page-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--gold-light);
}

.breadcrumb .sep {
    opacity: 0.5;
}

.breadcrumb .current {
    color: white;
}

.content-section {
    margin-bottom: 40px;
}

.content-section:last-child {
    margin-bottom: 0;
}

.content-section h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-primary);
}

.content-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.content-section p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.content-section ul,
.content-section ol {
    margin: 12px 0;
    padding-left: 24px;
}

.content-section li {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
}

.content-section strong {
    color: var(--text-primary);
    font-weight: 600;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.info-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.info-item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(30, 60, 114, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-item-icon svg {
    width: 24px;
    height: 24px;
}

.info-item-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.info-item-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-light);
}

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

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -27px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--primary);
}

.timeline-version {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.timeline-content {
    background: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius-lg);
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

.timeline-content li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 2;
}

.contact-form {
    max-width: 600px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, #2A5298 100%);
    border-radius: var(--radius-md);
    color: white;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.8;
}

.contact-info p a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-info p a:hover {
    color: #2A5298;
    text-decoration: underline;
}

.qq-contact {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.qq-link img {
    vertical-align: middle;
}

.qq-chat-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: linear-gradient(135deg, #12B7F5 0%, #0E86D4 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.qq-chat-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(18, 183, 245, 0.4);
}

@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
    }
    
    .qq-contact {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: inherit;
    color: var(--text-primary);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.manual-toc {
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}

.manual-toc h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.manual-toc ol {
    margin: 0;
    padding-left: 20px;
}

.manual-toc li {
    font-size: 15px;
    line-height: 2;
}

.manual-toc a {
    color: var(--primary);
    transition: color var(--transition-fast);
}

.manual-toc a:hover {
    color: var(--primary-light);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 16px 0;
}

.feature-list li {
    padding: 8px 0 8px 28px;
    position: relative;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    font-size: 12px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.warning-box {
    padding: 16px 20px;
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--warning);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 16px 0;
}

.warning-box p {
    margin: 0;
    font-size: 14px;
    color: #92400E;
}

.tip-box {
    padding: 16px 20px;
    background: rgba(30, 60, 114, 0.05);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 16px 0;
}

.tip-box p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .page-hero {
        padding: 100px 0 60px;
    }
    
    .page-hero-title {
        font-size: 28px;
    }
    
    .page-hero-desc {
        font-size: 16px;
    }
    
    .page-content {
        padding: 40px 0;
    }
    
    .page-card {
        padding: 24px;
    }
    
    .content-section h2 {
        font-size: 20px;
    }
    
    .content-section h3 {
        font-size: 16px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 24px;
    }
}