/* ============================================== 【1】首页专属样式 ============================================== */
:root {
    --primary: #1d56ff;
    --primary-hover: #1a4ae6;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --light-gray: #999999;
    --border-gray: #eeeeee;
    --bg-gray: #f8f9fa;
    --philosophy-bg: #f0f7ff;
}

/* 通用区块样式 - 缩减上下空白 */
section {
    padding: 60px 0;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--dark-gray);
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 15px;
    color: var(--light-gray);
    text-align: center;
    margin-bottom: 40px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.card-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.6;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 13px;
    margin-top: 16px;
    align-self: flex-start;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(29, 86, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-secondary:hover {
    background-color: rgba(29, 86, 255, 0.05);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--medium-gray);
    border-color: var(--border-gray);
}

.btn-outline-secondary:hover {
    background-color: rgba(29, 86, 255, 0.05);
    border-color: var(--primary);
    color: var(--primary);
}

/* ============================================== 【2】模块2：行业痛点板块 ============================================== */
.section-pain-points {
    background-color: var(--bg-gray);
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pain-point-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-gray);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pain-point-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.card-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background-color: rgba(29, 86, 255, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.pain-point-summary {
    text-align: center;
    margin-top: 30px;
    padding: 24px;
    background-color: #ffffff;
    border-radius: 10px;
}

.pain-point-summary p {
    font-size: 15px;
    color: var(--dark-gray);
    font-weight: 500;
    margin: 0;
}

/* ============================================== 【3】模块3：服务理念（强化视觉）============================================== */
.section-philosophy {
    background-color: var(--philosophy-bg);
    position: relative;
}

.section-philosophy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.philosophy-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 32px 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(29, 86, 255, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: var(--primary);
    border-radius: 2px;
}

.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(29, 86, 255, 0.12);
    border-color: var(--primary);
}

.philosophy-card-offset-1 {
    transform: translateY(16px);
}

.philosophy-card-offset-2 {
    transform: translateY(32px);
}

.philosophy-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(29, 86, 255, 0.15) 0%, rgba(29, 86, 255, 0.05) 100%);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    transition: transform 0.3s ease;
}

.philosophy-card:hover .philosophy-icon {
    transform: scale(1.1);
}

.philosophy-card .card-title {
    font-size: 18px;
    margin-bottom: 12px;
}

.philosophy-card .card-desc {
    font-size: 14px;
    line-height: 1.7;
}

/* ============================================== 【4】模块4：两大业务产品线 ============================================== */
.section-services {
    background-color: var(--bg-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.service-card {
    background-color: #ffffff;
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-gray);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.service-card-primary {
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, rgba(29, 86, 255, 0.03) 0%, #ffffff 100%);
}

.service-badge {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.service-badge-secondary {
    background-color: #f0f0f0;
    color: var(--medium-gray);
}

.service-card .card-title {
    font-size: 22px;
    margin-bottom: 6px;
}

.card-tag {
    font-size: 13px;
    color: var(--light-gray);
    margin-bottom: 16px;
    display: block;
}

.service-fit {
    padding: 16px;
    background-color: rgba(29, 86, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 16px;
}

.service-card:not(.service-card-primary) .service-fit {
    background-color: #f8f9fa;
}

.fit-label {
    font-weight: 600;
    color: var(--primary);
}

.fit-text {
    font-size: 14px;
    color: var(--medium-gray);
}

/* ============================================== 【5】模块5：配套增值服务 ============================================== */
.section-addons {}

.addons-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.addon-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-gray);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.addon-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.addon-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background-color: rgba(29, 86, 255, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    margin: 0 auto 12px;
}

.addon-card .card-title {
    font-size: 15px;
    text-align: center;
    margin-bottom: 0;
}

/* ============================================== 【6】模块6：交付优势 ============================================== */
.section-advantages {
    background-color: var(--bg-gray);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.advantage-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 24px 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-gray);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.card-icon-primary {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    margin: 0 auto 12px;
}

.advantage-card .card-title {
    font-size: 15px;
    margin-bottom: 8px;
}

.advantage-card .card-desc {
    font-size: 13px;
}

/* ============================================== 【7】模块7：建站思路时间轴 ============================================== */
.section-timeline {
    background-color: #ffffff;
}

.timeline-wrapper {
    max-width: 1000px;
    margin: 0 auto 40px;
    padding: 20px;
}

.timeline-curve-wrapper {
    width: 100%;
    height: 80px;
    position: relative;
    margin-bottom: 30px;
}

.timeline-curve {
    width: 100%;
    height: 100%;
}

.timeline-nodes {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0;
}

.timeline-node {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 280px;
}

.node-content {
    text-align: center;
    padding: 20px 16px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-gray);
    transition: all 0.3s ease;
}

.node-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(29, 86, 255, 0.1);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    transition: all 0.3s ease;
}

.node-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 10px;
    line-height: 1.4;
}

.node-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.6;
    margin: 0;
}

.timeline-node-active .node-content {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(29, 86, 255, 0.05) 0%, #ffffff 100%);
    box-shadow: 0 4px 20px rgba(29, 86, 255, 0.12);
}

.timeline-node-active .node-number {
    background-color: var(--primary);
    color: #ffffff;
}

.timeline-node-active .node-title {
    color: var(--primary);
}

.timeline-summary {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 32px;
    padding: 28px;
    background-color: var(--bg-gray);
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.timeline-summary p {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin: 0 0 10px;
}

.timeline-summary p:last-child {
    margin-bottom: 0;
    font-weight: 500;
    color: var(--dark-gray);
}

.timeline-action {
    text-align: center;
}

/* ============================================== 【8】模块8：案例展示 ============================================== */
.section-cases {}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.case-card {
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-gray);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.case-image {
    height: 180px;
    background-color: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-gray);
    font-size: 13px;
}

.case-card .card-title {
    padding: 16px 16px 6px;
    margin-bottom: 6px;
}

.case-card .card-desc {
    padding: 0 16px 16px;
    margin-bottom: 0;
}

/* ============================================== 【9】模块9：FAQ ============================================== */
.section-faq {
    background-color: var(--bg-gray);
}

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

.faq-item {
    background-color: #ffffff;
    border-radius: 8px;
    margin-bottom: 10px;
    overflow: hidden;
    border: 1px solid var(--border-gray);
}

.faq-question {
    width: 100%;
    padding: 16px 20px;
    text-align: left;
    background-color: transparent;
    border: none;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background-color: rgba(29, 86, 255, 0.02);
}

.faq-arrow {
    color: var(--primary);
    transition: transform 0.3s;
    font-size: 12px;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-answer p {
    font-size: 14px;
    color: var(--medium-gray);
    padding-top: 14px;
    border-top: 1px solid var(--border-gray);
    line-height: 1.7;
    margin: 0;
}

/* ============================================== 【10】模块10：CTA ============================================== */
.section-cta {}

.cta-content {
    background-color: var(--primary);
    border-radius: 16px;
    padding: 48px 32px;
    text-align: center;
}

.cta-title {
    font-size: 28px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cta-buttons .btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.cta-buttons .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.cta-buttons .btn-primary {
    background-color: #ffffff;
    color: var(--primary);
}

.cta-buttons .btn-primary:hover {
    background-color: #f0f0f0;
}

/* ============================================== 【12】响应式适配 ============================================== */
@media (max-width: 1200px) {
    .pain-points-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .philosophy-card-offset-1,
    .philosophy-card-offset-2 {
        transform: translateY(0);
    }

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

    .addons-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .timeline-curve-wrapper {
        height: 60px;
    }

    .timeline-nodes {
        flex-direction: column;
        gap: 24px;
    }

    .timeline-node {
        max-width: 100%;
    }

    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 22px;
    }

    .section-subtitle {
        font-size: 13px;
    }

    .pain-points-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .timeline-curve-wrapper {
        height: 50px;
    }

    .timeline-nodes {
        flex-direction: column;
        gap: 24px;
    }

    .timeline-node {
        max-width: 100%;
    }

    .node-content {
        padding: 16px;
    }

    .node-title {
        font-size: 15px;
    }

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

    .cta-title {
        font-size: 22px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}