/* 定价页面样式 - 菜鸟帮AI论文系统 */

/* 页面头部 */
.page-header {
    padding: 120px 0 80px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
    color: var(--text-white);
}

.page-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.header-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.pricing-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: floatShapes 8s ease-in-out infinite;
}

.shape-1 {
    width: 150px;
    height: 150px;
    top: 10%;
    left: 15%;
    animation-delay: 0s;
}

.shape-2 {
    width: 100px;
    height: 100px;
    top: 70%;
    right: 20%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    bottom: 30%;
    left: 70%;
    animation-delay: 4s;
}

@keyframes floatShapes {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.header-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 1s ease;
}

.page-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

/* 计费周期切换 */
.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    animation: fadeInUp 1s ease 0.4s both;
}

.billing-label {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-white);
    opacity: 0.8;
    transition: opacity var(--transition-normal);
}

.billing-label.active {
    opacity: 1;
}

.discount-badge {
    background: #10b981;
    color: var(--text-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: var(--space-sm);
}

/* 定价说明样式 */
.pricing-notice {
    margin-top: var(--space-xl);
    animation: fadeInUp 1s ease 0.4s both;
}

.notice-content {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    max-width: 600px;
    margin: 0 auto;
}

.notice-content i {
    font-size: 1.5rem;
    color: #10b981;
    flex-shrink: 0;
}

.notice-text h4 {
    color: var(--text-white);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 var(--space-xs) 0;
}

.notice-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.4;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.3);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background: var(--text-white);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background: rgba(255, 255, 255, 0.5);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* 定价方案 */
.pricing-plans {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray-50);
}

.pricing-plans .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.plan-card {
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    position: relative;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.plan-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.plan-card:hover::before {
    transform: scaleX(1);
}

.plan-card.popular {
    transform: scale(1.05);
    border: 2px solid var(--primary-color);
}

.plan-card.popular::before {
    transform: scaleX(1);
}

.popular-badge {
    position: absolute;
    top: -1px;
    right: var(--space-lg);
    background: var(--gradient-accent);
    color: var(--text-white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.plan-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.plan-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-white);
    margin: 0 auto var(--space-lg);
    transition: all var(--transition-normal);
}

.plan-card:hover .plan-icon {
    transform: scale(1.1) rotate(5deg);
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.plan-description {
    color: var(--text-secondary);
    line-height: 1.5;
}

.plan-pricing {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--bg-gray-100);
    border-bottom: 1px solid var(--bg-gray-100);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
}

.period {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.price-note {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.plan-features {
    margin-bottom: var(--space-xl);
}

.features-list {
    list-style: none;
    padding: 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    padding: var(--space-sm) 0;
    transition: all var(--transition-normal);
}

.feature-item:hover {
    background: var(--bg-gray-50);
    padding-left: var(--space-md);
    border-radius: var(--radius-sm);
}

.feature-item i {
    color: #10b981;
    font-size: 1.1rem;
    margin-top: 2px;
}

.feature-item span {
    color: var(--text-primary);
    line-height: 1.5;
}



/* 功能对比表 */
.feature-comparison {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.feature-comparison .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.comparison-table-container {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
    max-width: 100%;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-lg);
    text-align: center;
    border-bottom: 1px solid var(--bg-gray-100);
}

.comparison-table th {
    background: var(--bg-gray-50);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.feature-column {
    text-align: left !important;
    min-width: 200px;
}

.plan-column {
    min-width: 120px;
}

.plan-column.popular {
    background: rgba(102, 126, 234, 0.05);
    position: relative;
}

.plan-column.popular::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.feature-category {
    background: var(--bg-gray-50);
    font-weight: 600;
    color: var(--text-primary);
}

.feature-category td {
    text-align: left;
    font-size: 1.1rem;
    padding: var(--space-lg);
}

.feature-name {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left !important;
}

.feature-name i {
    color: var(--primary-color);
    width: 20px;
}

.comparison-table .highlight {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    font-weight: 600;
}

.comparison-table .fas.fa-check {
    color: #10b981;
    font-size: 1.2rem;
}

.comparison-table .fas.fa-times {
    color: #ef4444;
    font-size: 1.2rem;
}

/* FAQ */
.faq {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray-50);
}

.faq .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    position: relative;
}

.faq-question::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question::before {
    transform: scaleX(1);
}

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-xl) var(--space-xl);
    color: var(--text-secondary);
    line-height: 1.6;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeInUp 0.3s ease;
}

/* 客户评价 */
.testimonials {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.testimonials .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-gray-50);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    transition: all var(--transition-normal);
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-card:hover::before {
    transform: scaleX(1);
}

.stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: var(--space-lg);
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--bg-white);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.author-title {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
}

.author-plan {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* CTA区域 */
.cta {
    padding: var(--space-3xl) 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
    color: var(--text-white);
}

.cta .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.cta-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="25" cy="25" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="35" r="1.5" fill="rgba(255,255,255,0.15)"/><circle cx="45" cy="75" r="1" fill="rgba(255,255,255,0.2)"/></svg>');
    animation: float 12s ease-in-out infinite;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.cta-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.cta-guarantees {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0.9;
    font-size: 0.95rem;
}

.guarantee-item i {
    color: #10b981;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .pricing-plans .container,
    .feature-comparison .container,
    .testimonials .container,
    .cta .container {
        padding: 0 var(--space-md);
    }
    
    .plans-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .page-header .container,
    .pricing-plans .container,
    .feature-comparison .container,
    .faq .container,
    .testimonials .container,
    .cta .container {
        padding: 0 var(--space-md);
    }
    
    .billing-toggle {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .plans-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding: 0;
    }
    
    .plan-card.popular {
        transform: none;
    }
    
    .comparison-table-container {
        margin: 0 -var(--space-md);
        border-radius: 0;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--space-md);
        font-size: 0.9rem;
    }
    
    .feature-column {
        min-width: 150px;
    }
    
    .plan-column {
        min-width: 100px;
    }
    
    .faq-question {
        padding: var(--space-lg);
    }
    
    .faq-answer {
        padding: 0 var(--space-lg) var(--space-lg);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-guarantees {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
}

@media (max-width: 480px) {
    .page-header .container,
    .pricing-plans .container,
    .feature-comparison .container,
    .faq .container,
    .testimonials .container,
    .cta .container {
        padding: 0 var(--space-sm);
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1.1rem;
    }
    
    .plan-card {
        padding: var(--space-lg);
    }
    
    .plan-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .amount {
        font-size: 2.5rem;
    }
    
    .cta-title {
        font-size: 1.8rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
    }
}

/* 动画效果 */
@keyframes planCardHover {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(-10px);
    }
}

@keyframes priceChange {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* 滚动动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 高亮效果 */
.highlight-price {
    animation: priceChange 0.6s ease;
}

/* 计费切换动画 */
.billing-transition {
    transition: all 0.5s ease;
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 积分充值说明样式 */
.credit-info {
    margin-top: 4rem;
    padding: 2rem 0;
}

.credit-card {
    background: linear-gradient(135deg, #4f91e2 0%, #91baed 100%);
    border-radius: 20px;
    padding: 2.5rem;
    color: white;
    text-align: center;
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.credit-card h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.credit-card h3 i {
    margin-right: 0.5rem;
    color: #ffd700;
}

.credit-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.credit-option {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.credit-option:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.credit-option.recommended {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
    position: relative;
}

.credit-option.recommended::before {
    content: "推荐";
    position: absolute;
    top: -10px;
    right: -10px;
    background: #ffd700;
    color: #333;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.credit-amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffd700;
}

.credit-price {
    font-size: 1.5rem;
    font-weight: 600;
}

.credit-bonus {
    font-size: 0.9rem;
    opacity: 0.8;
    background: rgba(255, 215, 0, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.credit-note {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.6;
}

.credit-note i {
    margin-right: 0.5rem;
    color: #ffd700;
}

/* 学历层次切换样式优化 */
.billing-toggle .discount-badge {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 0.5rem;
    box-shadow: 0 2px 8px rgba(238, 90, 111, 0.3);
}

/* 价格显示样式 */
.plan-pricing .price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.plan-pricing .amount {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.plan-pricing .period {
    font-size: 1rem;
    opacity: 0.7;
    font-weight: 500;
}

.plan-pricing .price-note {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .credit-options {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .credit-card {
        padding: 1.5rem;
    }
    
    .credit-card h3 {
        font-size: 1.5rem;
    }
    
    .credit-option {
        padding: 1rem;
    }
    
    .plan-pricing .amount {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .credit-options {
        grid-template-columns: 1fr;
    }
}

/* 积分充值卡片选中状态 */
.credit-option.selected {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(255, 215, 0, 0.3);
}

.credit-option {
    cursor: pointer;
}

/* 定价页面移动端优化 */

/* 定价卡片网格优化 */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

@media (max-width: 1200px) {
    .plans-grid {
        gap: 1.5rem;
    }
}

@media (max-width: 1024px) {
    .plans-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .plans-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .plan-card {
        margin: 0 auto;
        max-width: 400px;
    }
}

@media (max-width: 480px) {
    .plans-grid {
        gap: 1rem;
    }
    
    .plan-card {
        max-width: 100%;
        margin: 0;
    }
}

/* 定价卡片内容优化 */
@media (max-width: 768px) {
    .plan-header {
        padding: 1.5rem 1rem;
    }
    
    .plan-name {
        font-size: 1.5rem;
    }
    
    .plan-description {
        font-size: 0.95rem;
    }
    
    .plan-pricing {
        padding: 1rem;
    }
    
    .plan-pricing .amount {
        font-size: 2.5rem;
    }
    
    .plan-features {
        padding: 1rem;
    }
    
    .features-list {
        gap: 0.75rem;
    }
    
    .feature-item {
        font-size: 0.95rem;
        padding: 0.5rem 0;
    }
}

@media (max-width: 480px) {
    .plan-header {
        padding: 1rem 0.75rem;
    }
    
    .plan-name {
        font-size: 1.25rem;
    }
    
    .plan-description {
        font-size: 0.9rem;
    }
    
    .plan-pricing .amount {
        font-size: 2rem;
    }
    
    .plan-pricing .period {
        font-size: 0.9rem;
    }
    
    .feature-item {
        font-size: 0.9rem;
    }
}

/* 积分充值卡片移动端优化 */
@media (max-width: 768px) {
    .credit-card {
        padding: 1.5rem;
        margin: 0 auto;
        max-width: 500px;
    }
    
    .credit-card h3 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .credit-options {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .credit-option {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .credit-card {
        padding: 1rem;
    }
    
    .credit-card h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .credit-options {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .credit-option {
        padding: 0.875rem;
    }
    
    .credit-amount {
        font-size: 1.1rem;
    }
    
    .credit-price {
        font-size: 1.3rem;
    }
    
    .credit-bonus {
        font-size: 0.8rem;
    }
}

/* 功能对比表移动端优化 */
.comparison-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -1rem;
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .comparison-table-container {
        margin: 0 -1rem;
    }
    
    .comparison-table {
        min-width: 600px;
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .feature-name {
        min-width: 150px;
    }
    
    .plan-column {
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .comparison-table-container {
        margin: 0 -0.5rem;
        padding: 0 0.5rem;
    }
    
    .comparison-table {
        font-size: 0.8rem;
        min-width: 550px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem 0.25rem;
    }
}

/* FAQ移动端优化 */
@media (max-width: 768px) {
    .faq-question h3 {
        font-size: 1.1rem;
        line-height: 1.4;
    }
    
    .faq-answer {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}

@media (max-width: 480px) {
    .faq-question {
        padding: 1rem;
    }
    
    .faq-question h3 {
        font-size: 1rem;
        padding-right: 2rem;
    }
    
    .faq-answer {
        padding: 1rem;
        font-size: 0.9rem;
    }
}

/* 用户评价移动端优化 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

@media (max-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonial-card {
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .testimonials-grid {
        gap: 1rem;
    }
    
    .testimonial-card {
        max-width: 100%;
    }
    
    .testimonial-text {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .author-name {
        font-size: 1rem;
    }
    
    .author-title {
        font-size: 0.85rem;
    }
}

/* CTA区域移动端优化 */
@media (max-width: 768px) {
    .cta-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .cta-subtitle {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .cta-guarantees {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .cta-title {
        font-size: 1.75rem;
    }
    
    .cta-subtitle {
        font-size: 0.95rem;
    }
    
    .guarantee-item {
        font-size: 0.9rem;
    }
}