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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid #e8e8e8;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    color: #666;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-back:hover {
    background: #f5f5f5;
    color: #667eea;
}

.nav-back svg {
    transition: transform 0.2s;
}

.nav-back:hover svg {
    transform: translateX(-2px);
}

.nav-logo {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    text-decoration: none;
}

.nav-logo:hover {
    color: #667eea;
}

/* 主内容 */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 40px;
}

.content-wrapper {
    background: white;
    border-radius: 16px;
    padding: 0;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    overflow: hidden;
}

/* Hero区域 */
.hero-section {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-icon {
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 18px;
    opacity: 0.95;
}

/* 区块 */
.section {
    padding: 48px 60px;
    border-bottom: 1px solid #f0f0f0;
}

.section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: #000;
    margin-bottom: 32px;
    text-align: center;
}

/* 服务网格 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 32px 24px;
    background: #f9f9f9;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.service-card:hover {
    background: #f0f2ff;
    border-color: #667eea;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #000;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 流程时间线 */
.process-timeline {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(to right, #667eea, #764ba2);
    z-index: 0;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: #000;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* QQ群卡片 */
.qq-group-card {
    background: linear-gradient(135deg, #f0f2ff 0%, #fff 100%);
    border: 2px solid #667eea;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.15);
}

.qq-group-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 32px;
}

.qq-group-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: #000;
    margin-bottom: 4px;
}

.qq-group-header p {
    font-size: 15px;
    color: #666;
}

.qq-group-info {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.info-label {
    font-size: 15px;
    color: #666;
    min-width: 100px;
}

.info-value {
    font-size: 16px;
    font-weight: 600;
    color: #000;
}

.qq-group-actions {
    display: flex;
    gap: 16px;
}

.btn-primary,
.btn-secondary {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-secondary:hover {
    background: #f0f2ff;
    transform: translateY(-2px);
}

/* 常见问题 */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    padding: 24px;
    background: #f9f9f9;
    border-radius: 12px;
    border-left: 4px solid #667eea;
    transition: all 0.2s;
}

.faq-item:hover {
    background: #f0f2ff;
    transform: translateX(4px);
}

.faq-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #000;
    margin-bottom: 12px;
}

.faq-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

/* 温馨提示 */
.tips-box {
    background: #fff9e6;
    border: 2px solid #ffd700;
    border-radius: 12px;
    padding: 32px;
}

.tips-box h3 {
    font-size: 20px;
    font-weight: 600;
    color: #d97706;
    margin-bottom: 16px;
}

.tips-box ul {
    list-style: none;
    padding: 0;
}

.tips-box li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    font-size: 15px;
    line-height: 1.8;
    color: #666;
}

.tips-box li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #d97706;
    font-weight: 700;
    font-size: 18px;
}

/* 返回按钮 */
.back-button-wrapper {
    text-align: center;
    padding: 48px 40px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 24px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 40px 20px 20px;
    color: #999;
    font-size: 14px;
}

.footer p {
    margin: 8px 0;
}

.footer-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.footer-link:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 1024px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        border-radius: 0;
    }

    .hero-section {
        padding: 40px 24px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section {
        padding: 32px 24px;
    }

    .section-title {
        font-size: 24px;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }

    .process-timeline {
        flex-direction: column;
        gap: 32px;
    }

    .process-timeline::before {
        display: none;
    }

    .qq-group-header {
        flex-direction: column;
        text-align: center;
    }

    .qq-group-actions {
        flex-direction: column;
    }
}


/* 页脚美化 */
.footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 32px 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-copyright {
    font-size: 14px;
    font-weight: 500;
    margin: 0;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
}

.footer-link {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.footer-divider {
    opacity: 0.6;
}

.footer-text {
    opacity: 0.9;
}

.footer-icp {
    margin-top: 8px;
}

.icp-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 12px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.icp-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.icp-link svg {
    flex-shrink: 0;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .footer-links {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .footer-divider {
        display: none;
    }
}