/* ========================================================
   技术服务与支持页面专属样式 (support-service.html)
   ======================================================== */

/* ---- 首屏 Hero 增强 ---- */
.svc-hero {
    padding-bottom: 64px;
}
.svc-hero h1 {
    font-size: clamp(24px, 4vw, 38px);
    font-weight: 800;
    line-height: 1.35;
    margin-bottom: 16px;
}
.svc-hero-highlight {
    margin-top: 12px;
    font-size: 15px;
    color: var(--orange);
    font-weight: 600;
}
.svc-hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 32px;
}

/* ---- 板块标题统一居左 ---- */
.section-head {
    text-align: left;
}
.section-head p {
    margin-left: 0;
    margin-right: 0;
}

/* ---- 服务卡片网格 ---- */
.ss-service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.ss-service-grid--4col {
    grid-template-columns: repeat(2, 1fr);
}

.ss-svc-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: all var(--transition);
}
.ss-svc-card:hover {
    border-color: var(--blue);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.ss-svc-icon {
    width: 48px;
    height: 48px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--blue);
}
.ss-svc-icon svg {
    width: 24px;
    height: 24px;
}
.ss-svc-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}
.ss-svc-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ---- 增值服务 ---- */
.ss-va-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}
.ss-va-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--blue-light);
    border-radius: var(--radius);
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
}
.ss-va-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--blue);
    flex-shrink: 0;
}

/* ---- 流程步骤 ---- */
.ss-flow-block {
    margin-bottom: 48px;
}
.ss-flow-block:last-child {
    margin-bottom: 0;
}
.ss-flow-block h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text);
    text-align: center;
}
.ss-flow-steps {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}
.ss-flow-step {
    padding: 12px 18px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
}
.ss-flow-step--end {
    background: var(--blue);
    color: var(--white);
    border-color: var(--blue);
}
.ss-flow-arrow {
    color: var(--blue);
    display: flex;
    align-items: center;
}

/* ---- 研发实力 ---- */
.ss-cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.ss-cap-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: all var(--transition);
}
.ss-cap-card:hover {
    box-shadow: var(--shadow);
}
.ss-cap-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--blue);
    margin-bottom: 12px;
}
.ss-cap-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ---- 全周期保障 ---- */
.ss-cycle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 40px;
}
.ss-cycle-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
}
.ss-cycle-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--orange);
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    border-radius: 20px;
    margin-bottom: 20px;
}
.ss-cycle-badge--blue {
    background: var(--blue);
}
.ss-cycle-badge--green {
    background: #2D9B52;
}
.ss-cycle-card ul {
    list-style: none;
    padding: 0;
}
.ss-cycle-card li {
    position: relative;
    padding: 8px 0 8px 20px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}
.ss-cycle-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 16px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue);
}

/* ---- 紧急响应 ---- */
.ss-emergency {
    display: flex;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, #FFF3E8, #FFF8F0);
    border: 1px solid #FFD6B0;
    border-radius: var(--radius);
    padding: 24px 32px;
}
.ss-emergency-icon {
    width: 56px;
    height: 56px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}
.ss-emergency-icon svg {
    width: 28px;
    height: 28px;
}
.ss-emergency h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--orange);
    margin-bottom: 6px;
}
.ss-emergency p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ---- FAQ ---- */
.ss-faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.ss-faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all var(--transition);
}
.ss-faq-item[open] {
    border-color: var(--blue);
    box-shadow: 0 2px 12px rgba(0,82,163,0.08);
}
.ss-faq-item summary {
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.ss-faq-item summary::-webkit-details-marker { display: none; }
.ss-faq-item summary::after {
    content: '+';
    font-size: 20px;
    font-weight: 700;
    color: var(--blue);
    transition: transform var(--transition);
}
.ss-faq-item[open] summary::after {
    content: '−';
}
.ss-faq-item p {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ---- 底部 CTA ---- */
.ss-bottom-cta {
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    padding: 64px 0;
}
.ss-cta-box {
    text-align: center;
    color: var(--white);
}
.ss-cta-box h2 {
    font-size: clamp(22px, 3.5vw, 32px);
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--white);
}
.ss-cta-box p {
    font-size: 16px;
    opacity: 0.85;
    margin-bottom: 32px;
}
.ss-cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.ss-cta-btns .btn-orange {
    background: var(--orange);
}
.ss-cta-btns .btn-blue {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.4);
}
.ss-cta-btns .btn-outline {
    border-color: rgba(255,255,255,0.5);
    color: var(--white);
}
.ss-cta-btns .btn-outline:hover {
    background: var(--white);
    color: var(--blue);
}
.ss-cta-contact {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 14px;
    opacity: 0.8;
}

/* ---- 侧边栏浮窗 ---- */
.ss-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 900;
    display: none;
}
.ss-sidebar-inner {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px 0 0 12px;
    padding: 20px 16px;
    box-shadow: -4px 0 24px rgba(0,0,0,0.08);
    width: 240px;
}
.ss-sidebar-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 0;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}
.ss-sidebar-icon {
    font-size: 14px;
    flex-shrink: 0;
}
.ss-sidebar-btn {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 16px;
    padding: 10px 12px;
    font-size: 13px;
}

/* ---- 响应式适配 ---- */
@media (min-width: 1200px) {
    .ss-sidebar {
        display: block;
    }
}

@media (max-width: 1024px) {
    .ss-service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .ss-cap-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .ss-cycle-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ss-service-grid,
    .ss-service-grid--4col {
        grid-template-columns: 1fr;
    }
    .ss-va-grid {
        grid-template-columns: 1fr;
    }
    .ss-cap-grid {
        grid-template-columns: 1fr;
    }
    .ss-flow-steps {
        flex-direction: column;
    }
    .ss-flow-arrow svg {
        transform: rotate(90deg);
    }
    .svc-hero-btns {
        flex-direction: column;
        align-items: center;
    }
    .ss-cta-btns {
        flex-direction: column;
        align-items: center;
    }
    .ss-cta-contact {
        flex-direction: column;
        gap: 8px;
    }
    .ss-emergency {
        flex-direction: column;
        text-align: center;
        padding: 24px 20px;
    }
}