/* ============================================================
   XinYue 定价页 - Apple 风格
   基于 home.css 设计系统的页面级补充样式
   ============================================================ */

/* ---------- 页头 ---------- */

.pricing-hero {
    background: #fff;
    text-align: center;
    padding: calc(var(--nav-height) + 96px) 0 64px;
}

.pricing-hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.015em;
    margin-bottom: 16px;
}

.pricing-hero-sub {
    font-size: 19px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

/* ---------- 计费周期分段控件(iOS 风格) ---------- */

.billing-segment {
    display: inline-flex;
    padding: 3px;
    background: rgba(120, 120, 128, 0.12);
    border-radius: 980px;
}

.segment-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: none;
    background: transparent;
    padding: 8px 24px;
    font-family: inherit;
    font-size: 14px;
    color: var(--color-text);
    border-radius: 980px;
    cursor: pointer;
    transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.segment-btn.active {
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    font-weight: 600;
}

.save-tag {
    font-size: 11px;
    line-height: 1;
    color: var(--color-blue);
    background: rgba(0, 102, 204, 0.1);
    padding: 4px 8px;
    border-radius: 980px;
}

/* ---------- 定价卡 ---------- */

.pricing {
    background: #fff;
    padding: 24px 0 116px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.pricing-card {
    display: flex;
    flex-direction: column;
    background: var(--color-gray-bg);
    border-radius: var(--radius-tile);
    padding: 44px 34px 38px;
    text-align: center;
    transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.pricing-card h3 {
    font-size: 21px;
    font-weight: 600;
}

.plan-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 6px 0 24px;
}

.price {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 3px;
    margin-bottom: 24px;
}

.price .currency {
    font-size: 22px;
    font-weight: 600;
}

.price .amount {
    font-size: 48px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    transition: opacity 0.15s ease;
}

.price .amount.switching {
    opacity: 0;
}

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

.price .contact {
    font-size: 28px;
    font-weight: 600;
}

.pricing-card .btn-pill {
    margin: 0 auto 28px;
    padding: 11px 28px;
    font-size: 15px;
}

/* 套餐功能列表 */

.plan-features {
    list-style: none;
    text-align: left;
    border-top: 1px solid var(--color-hairline);
    padding-top: 20px;
    margin-top: auto;
}

.plan-features li {
    position: relative;
    padding: 7px 0 7px 26px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.plan-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: 600;
    color: var(--color-blue);
}

/* ---------- 专业版:黑色高亮卡 ---------- */

.pricing-card--dark {
    background: var(--color-dark);
    color: var(--color-text-on-dark);
}

.pricing-card--dark:hover {
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.popular-tag {
    display: inline-block;
    font-size: 12px;
    line-height: 1;
    padding: 5px 12px;
    margin-bottom: 16px;
    border-radius: 980px;
    background: var(--color-blue-on-dark);
    color: #fff;
}

.pricing-card--dark .plan-desc,
.pricing-card--dark .period {
    color: var(--color-text-on-dark-secondary);
}

.pricing-card--dark .plan-features {
    border-top-color: rgba(255, 255, 255, 0.14);
}

.pricing-card--dark .plan-features li {
    color: var(--color-text-on-dark-secondary);
}

.pricing-card--dark .plan-features li::before {
    color: var(--color-blue-on-dark);
}

/* ---------- 常见问题 ---------- */

.faq {
    background: #fff;
    padding: 0 0 120px;
}

.faq-list {
    max-width: 680px;
    margin: 0 auto;
}

.faq-item {
    padding: 26px 0;
    border-bottom: 1px solid var(--color-hairline);
}

.faq-item:first-child {
    border-top: 1px solid var(--color-hairline);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.faq-item p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--color-text-secondary);
}

/* ---------- 响应式 ---------- */

@media (max-width: 834px) {
    .pricing-hero {
        padding: calc(var(--nav-height) + 56px) 0 44px;
    }

    .pricing {
        padding: 8px 0 76px;
    }

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

    .pricing-card {
        padding: 36px 28px 32px;
    }

    .segment-btn {
        padding: 7px 16px;
        font-size: 13px;
    }

    .faq {
        padding: 0 0 84px;
    }
}