/* 价格方案页面专用样式 */

/* 页面头部 */
.page-header {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* 价格套餐 */
.pricing-section {
    padding: 6rem 0;
    background: white;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.toggle-label {
    font-weight: 600;
    color: var(--gray-700);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    transition: 0.3s;
    border-radius: 30px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--primary-600);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

.discount-badge {
    background: var(--success);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    align-items: start;
}

@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.pricing-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card.featured {
    border-color: var(--primary-500);
    box-shadow: var(--shadow-xl);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured:hover {
    transform: translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 2;
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.plan-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price-currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-700);
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-600);
    line-height: 1;
}

.price-period {
    font-size: 1rem;
    color: var(--gray-600);
}

.card-features {
    margin-bottom: 2rem;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-700);
}

.feature-list i {
    color: var(--success);
    font-size: 0.875rem;
}

.card-footer {
    text-align: center;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-600);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-outline-primary:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-1px);
}

/* 功能对比 */
.feature-comparison {
    padding: 6rem 0;
    background: var(--gray-50);
}

.comparison-table {
    max-width: 1000px;
    margin: 0 auto;
}

.table-container {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

th {
    background: var(--gray-50);
    font-weight: 700;
    color: var(--gray-900);
    font-size: 0.875rem;
}

.feature-column {
    width: 40%;
}

.plan-column {
    width: 20%;
    text-align: center;
}

.feature-name {
    font-weight: 600;
    color: var(--gray-900);
}

.feature-cell {
    text-align: center;
    color: var(--gray-700);
}

.feature-cell i.fa-check {
    color: var(--success);
    font-size: 1.125rem;
}

.feature-cell i.fa-times {
    color: var(--gray-400);
    font-size: 1.125rem;
}

/* 常见问题 */
.faq-section {
    padding: 6rem 0;
    background: white;
}

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

.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    background: var(--gray-50);
    transition: all 0.2s ease;
}

.faq-question:hover {
    background: var(--primary-50);
}

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.faq-question i {
    color: var(--gray-500);
    font-size: 1.125rem;
    transition: transform 0.3s ease;
}

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

.faq-item.active .faq-question {
    background: var(--primary-100);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--gray-700);
    line-height: 1.7;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }

    .table-container {
        overflow-x: auto;
    }

    table {
        min-width: 600px;
    }

    .faq-question {
        padding: 1rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-item.active .faq-answer {
        padding: 1rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pricing-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.pricing-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card.featured.animate {
    transform: scale(1.05);
}

/* 价格切换动画 */
.price-amount {
    transition: all 0.3s ease;
}

/* 悬停效果 */
.pricing-card:hover .plan-name {
    color: var(--primary-600);
}

.pricing-card:hover .price-amount {
    color: var(--primary-700);
}