.product-page {
    margin-top: 80px;
    background:
        radial-gradient(circle at top right, rgba(42, 108, 240, .08), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 24%, #f9fbfd 100%);
}

.product-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-hero,
.product-suite,
.service-suite {
    position: relative;
    overflow: hidden;
}

/* ===== Hero ===== */
.product-hero {
    padding: 92px 0 64px;
}

.product-hero-copy {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.product-eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(42, 108, 240, .08);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .04em;
}

.product-hero-copy h1 {
    margin: 18px 0 18px;
    font-size: 40px;
    line-height: 1.2;
    font-weight: 600;
    color: var(--text-primary);
}

.product-hero-copy p {
    margin: 0 auto;
    max-width: 720px;
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.product-hero-actions {
    margin-top: 28px;
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.product-choice-grid {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.product-choice-card {
    padding: 30px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .9);
    border: 1px solid rgba(226, 232, 240, .95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
    transition: all .3s ease;
}

.product-choice-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
}

.product-choice-card.is-service {
    background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}

.product-choice-tag {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #eff6ff;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
}

.product-choice-card h2 {
    margin: 18px 0 14px;
    font-size: 24px;
    line-height: 1.3;
    font-weight: 600;
    color: var(--text-primary);
}

.product-choice-note {
    margin-top: 6px;
    padding-top: 16px;
    border-top: 1px solid #edf2f7;
    font-size: 15px;
    line-height: 1.8;
    color: #64748b;
}

.product-choice-actions {
    margin-top: 22px;
}

/* ===== SaaS 产品区块 ===== */
.product-suite {
    padding: 96px 0 40px;
    background: #ffffff;
}

/* ===== 定制服务区块 ===== */
.service-suite {
    padding: 96px 0 100px;
    background-color: var(--background-secondary, #f8fafd);
}

/* ===== 区块头部 ===== */
.suite-head {
    display: grid;
    gap: 20px;
    margin-bottom: 50px;
}

.suite-copy h2 {
    margin: 14px 0 16px;
    font-size: 32px;
    line-height: 1.2;
    font-weight: 600;
    color: var(--text-primary);
}

.suite-copy p {
    margin: 0;
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.suite-fit-strip {
    padding: 22px 24px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid #e5edf7;
}

.suite-fit-label {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(34, 197, 94, .1);
    color: #15803d;
    font-size: 13px;
    font-weight: 700;
}

.suite-fit-strip p {
    margin: 12px 0 0;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.suite-action-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== 概览卡片 ===== */
.suite-overview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.suite-overview-card,
.suite-card,
.suite-feature-card,
.service-process-card {
    background: var(--background, #fff);
    border: 1px solid var(--border, #e7eef8);
    box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
}

.suite-overview-card {
    min-height: 100%;
    padding: 30px;
    border-radius: 20px;
}

.suite-overview-tag {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #eef4ff;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
}

.suite-overview-card h3 {
    margin: 18px 0 14px;
    font-size: 20px;
    line-height: 1.35;
    font-weight: 600;
    color: var(--text-primary);
}

.suite-overview-card p {
    margin: 0;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.suite-value-list {
    margin: 18px 0 0;
    padding-left: 18px;
    color: var(--text-secondary);
}

.suite-value-list li {
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.8;
}

/* ===== 子区块(产品优势/功能特色/服务优势/服务流程) ===== */
.suite-section {
    margin-top: 72px;
}

.suite-section-head {
    text-align: center;
    margin-bottom: 40px;
}

.suite-section-head h3 {
    margin: 0;
    font-size: 24px;
    line-height: 1.32;
    font-weight: 600;
    color: var(--text-primary);
}

.suite-section-head p {
    margin: 14px 0 0;
    font-size: 16px;
    line-height: 1.8;
    color: #64748b;
}

/* ===== 卡片网格 ===== */
.suite-card-grid,
.suite-feature-grid,
.service-process-grid {
    display: grid;
    gap: 24px;
}

.suite-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.suite-feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-process-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.suite-card,
.suite-feature-card,
.service-process-card {
    position: relative;
    padding: 30px;
    border-radius: 16px;
    transition: all .3s ease;
}

.suite-card:hover,
.suite-feature-card:hover,
.service-process-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
}

.suite-card-index,
.service-process-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: 999px;
    background: #eaf2ff;
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
}

.service-process-step {
    background: #ecfdf3;
    color: #15803d;
}

.suite-card h4,
.suite-feature-card h4,
.service-process-card h4 {
    margin: 18px 0 12px;
    font-size: 18px;
    line-height: 1.4;
    font-weight: 500;
    color: var(--text-primary);
}

.suite-card p,
.suite-feature-card p,
.service-process-card p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.is-service-card .suite-card-index {
    background: #f3f0ff;
    color: #6d28d9;
}

/* ===== 功能特色图标 ===== */
.suite-feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #eef4ff;
    color: var(--primary);
    font-size: 24px;
    margin-bottom: 4px;
}

/* ===== 服务流程连接线 ===== */
.process-connector {
    display: none;
}

@media (min-width: 1101px) {
    .process-connector {
        display: block;
        position: absolute;
        top: 48px;
        right: -16px;
        width: 10px;
        height: 10px;
        border-top: 2px solid #d1dced;
        border-right: 2px solid #d1dced;
        transform: rotate(45deg);
    }
}

/* ===== FAQ 板块 ===== */
.product-faq {
    padding: 96px 0;
    background: #ffffff;
}

.product-faq-header {
    text-align: center;
    margin-bottom: 50px;
}

.product-faq-header h2 {
    margin: 0;
    font-size: 32px;
    line-height: 1.32;
    font-weight: 600;
    color: var(--text-primary);
}

.product-faq-header p {
    margin: 16px 0 0;
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.product-faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.product-faq-item {
    border-bottom: 1px solid #edf2f7;
}

.product-faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 0;
    cursor: pointer;
    list-style: none;
}

.product-faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-question {
    font-size: 17px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-primary);
}

.faq-toggle {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #f1f5f9;
    position: relative;
    transition: transform .25s ease, background .25s ease;
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: #475569;
    border-radius: 1px;
}

.faq-toggle::before {
    width: 12px;
    height: 2px;
    transform: translate(-50%, -50%);
}

.faq-toggle::after {
    width: 2px;
    height: 12px;
    transform: translate(-50%, -50%);
    transition: transform .25s ease;
}

.product-faq-item[open] .faq-toggle {
    background: #eef4ff;
}

.product-faq-item[open] .faq-toggle::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-answer {
    padding: 0 0 22px;
}

.faq-answer p {
    margin: 0;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
    .suite-overview-grid,
    .product-choice-grid,
    .suite-card-grid,
    .suite-feature-grid,
    .service-process-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .product-page {
        margin-top: 72px;
    }

    .product-hero {
        padding: 72px 0 42px;
    }

    .product-shell {
        padding: 0 16px;
    }

    .product-hero-copy h1 {
        font-size: 34px;
    }

    .product-hero-copy p,
    .suite-copy p {
        font-size: 16px;
    }

    .product-choice-card,
    .suite-overview-card,
    .suite-card,
    .suite-feature-card,
    .service-process-card,
    .suite-fit-strip {
        padding: 24px 20px;
    }

    .product-suite,
    .service-suite {
        padding: 72px 0 40px;
    }

    .suite-copy h2,
    .product-faq-header h2 {
        font-size: 28px;
    }

    .suite-section-head h3 {
        font-size: 22px;
    }

    .suite-section {
        margin-top: 56px;
    }

    .suite-head {
        margin-bottom: 36px;
    }

    .product-faq {
        padding: 72px 0;
    }
}

@media (max-width: 480px) {
    .product-hero-copy h1 {
        font-size: 30px;
    }

    .product-choice-card h2 {
        font-size: 22px;
    }

    .suite-copy h2 {
        font-size: 26px;
    }

    .suite-overview-card h3,
    .suite-section-head h3 {
        font-size: 20px;
    }

    .suite-action-row,
    .product-hero-actions {
        display: grid;
    }

    .product-faq-header h2 {
        font-size: 24px;
    }

    .faq-question {
        font-size: 15px;
    }
}