/* 全局CSS变量 */
:root {
    --primary-color: #4a6bff;
    --secondary-color: #3a56cc;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
    --text-color: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --success-color: #28a745;
    --danger-color: #dc3545;
    --recommended-color: #ff9800;
    --font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

/* 全局样式 */
body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--card-background);
    box-shadow: 0 2px 4px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    width: 32px;
    height: 32px;
    margin-right: 8px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.user-section {
    display: flex;
    align-items: center;
}

.login-button {
    padding: 6px 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.login-button:hover {
    background-color: var(--secondary-color);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: none;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    cursor: pointer;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.header p {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

/* 选项卡样式 */
.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 10px 20px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-button:hover {
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease-out;
}

/* 会员卡片样式 */
.plan-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.plan-card {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    width: 300px;
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.plan-card.recommended {
    border: 2px solid var(--recommended-color);
}

.recommended-badge {
    position: absolute;
    top: 10px;
    right: -30px;
    background-color: var(--recommended-color);
    color: white;
    padding: 5px 30px;
    transform: rotate(45deg);
    font-size: 12px;
    font-weight: 600;
}

.plan-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.plan-header h3 {
    font-size: 20px;
    margin: 0 0 10px;
    color: var(--text-color);
}

.plan-price {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
}

.price-period {
    font-size: 14px;
    font-weight: normal;
    color: var(--text-secondary);
}

.original-price {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: line-through;
    margin-top: 5px;
}

.plan-features {
    margin-bottom: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.feature-icon {
    margin-right: 10px;
    font-size: 16px;
}

.feature-text {
    font-size: 14px;
    color: var(--text-color);
}

.buy-button {
    width: 100%;
    padding: 10px;
    background-color: var(--card-background);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
    position: relative;
    overflow: hidden;
}

.buy-button:hover {
    background-color: rgba(74, 107, 255, 0.1);
}

.buy-button.primary {
    background-color: var(--primary-color);
    color: white;
}

.buy-button.primary:hover {
    background-color: var(--secondary-color);
}

/* 涟漪效果 */
.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.7);
    width: 100px;
    height: 100px;
    margin-top: -50px;
    margin-left: -50px;
    animation: ripple 0.8s;
    opacity: 0;
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }
    100% {
        transform: scale(3);
        opacity: 0;
    }
}

/* 算力卡片样式 */
.compute-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.compute-card {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    width: 200px;
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.compute-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.compute-card.recommended {
    border: 2px solid var(--recommended-color);
}

.compute-header {
    margin-bottom: 15px;
}

.compute-header h3 {
    font-size: 24px;
    margin: 0 0 10px;
    color: var(--text-color);
}

.compute-price {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-color);
}

.compute-amount {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 20px;
}

/* 登录弹窗样式 */
.login-modal, .user-info-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.login-modal-content, .user-info-modal-content {
    background-color: var(--card-background);
    border-radius: 8px;
    padding: 20px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 4px 12px var(--shadow-color);
    position: relative;
    animation: fadeIn 0.3s;
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

.close-modal:hover {
    color: var(--text-color);
}

.login-modal-content h2, .user-info-modal-content h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 20px;
    color: var(--text-color);
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}

.login-submit-btn {
    width: 100%;
    padding: 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 10px;
}

.login-submit-btn:hover {
    background-color: var(--secondary-color);
}

/* 用户信息样式 */
.user-info-container {
    padding: 10px 0;
}

.user-info-item {
    margin-bottom: 12px;
    display: flex;
}

.info-label {
    font-weight: 500;
    width: 100px;
}

.user-info-section {
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.user-info-section h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.transaction-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
}

.logout-btn {
    width: 100%;
    padding: 10px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 20px;
}

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

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 条款和条件页面样式 */
.terms-container {
    max-width: 800px;
}

.terms-section {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 20px;
    margin-bottom: 20px;
}

.terms-section h2 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.terms-section h3 {
    font-size: 18px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.terms-section p, .terms-section li {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-color);
}

.terms-section ul {
    padding-left: 20px;
}

.terms-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.terms-link:hover {
    text-decoration: underline;
}

.back-link {
    margin-top: 30px;
    text-align: center;
}

/* 页脚样式 */
.footer {
    background-color: var(--card-background);
    padding: 20px;
    text-align: center;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    width: 100%;
    box-sizing: border-box;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
    align-items: center;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: color 0.3s, background-color 0.3s;
}

.footer-link:hover {
    color: var(--primary-color);
    background-color: rgba(74, 107, 255, 0.1);
}

.footer-text {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 联系信息提示框样式 */
.contact-message {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.message-box {
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #f9f9f9;
    margin-top: 15px;
}

.message-box p {
    margin: 10px 0;
}

/* 联系方式样式 */
.contact-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-info {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    min-width: 24px;
}

.contact-details h3 {
    margin-top: 0;
    margin-bottom: 5px;
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

.message-box p {
    margin: 10px 0;
}

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

.message-box strong {
    color: var(--primary-color);
    font-weight: 600;
}

.contact-list {
    list-style-type: none;
    padding: 0;
    margin: 15px 0;
}

.contact-list li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
    color: var(--text-color);
    font-size: 14px;
}

.contact-list li:last-child {
    border-bottom: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .plan-cards, .compute-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .plan-card, .compute-card {
        width: 100%;
        max-width: 350px;
    }
    
    .header h1 {
        font-size: 24px;
    }
    
    .header p {
        font-size: 14px;
    }
    
    .terms-section {
        padding: 15px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}