/* ============================================
   企业介绍页 - aboutus.css
   设计语言：科技蓝系、1200px居中、卡片阴影
   ============================================ */

/* ========== Banner 区域 ========== */
.aboutus-banner {
    position: relative;
    height: 420px;
    background: linear-gradient(135deg, #061828 0%, #0e2942 40%, #132f4c 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}
.aboutus-banner .banner-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: url("/static/image/branch-bg.png") center bottom no-repeat;
    background-size: cover;
    opacity: 0.12;
}
.aboutus-banner .banner-glow-1 {
    position: absolute;
    top: -120px; right: 5%;
    width: 460px; height: 460px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(35,134,238,0.18) 0%, transparent 70%);
    pointer-events: none;
}
.aboutus-banner .banner-glow-2 {
    position: absolute;
    bottom: -80px; left: 10%;
    width: 360px; height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,204,254,0.12) 0%, transparent 70%);
    pointer-events: none;
}
.aboutus-banner .banner-content {
    position: relative;
    width: 1200px;
    margin: 0 auto;
    padding-top: 60px;
    z-index: 1;
}
.aboutus-banner .banner-label {
    display: inline-block;
    padding: 6px 20px;
    margin-bottom: 18px;
    border: 1px solid rgba(35,134,238,0.5);
    border-radius: 20px;
    color: #5badf5;
    font-size: 13px;
    letter-spacing: 2px;
}
.aboutus-banner .banner-title {
    margin-bottom: 16px;
    color: #FFFFFF;
    font-size: 42px;
    font-weight: 700;
    letter-spacing: 2px;
}
.aboutus-banner .banner-subtitle {
    max-width: 880px;
    margin: 0 auto;
    color: rgba(255,255,255,0.65);
    font-size: 16px;
    line-height: 28px;
    text-align: center;
}

/* ========== 数据概览条 ========== */
.aboutus-stats {
    position: relative;
    width: 1200px;
    margin: -50px auto 0 auto;
    display: flex;
    justify-content: space-between;
    z-index: 2;
}
.aboutus-stats .stat-item {
    flex: 1;
    margin: 0 8px;
    padding: 30px 20px 24px;
    background: #FFFFFF;
    border-radius: 6px;
    box-shadow: 0px 4px 20px 0px rgba(28, 45, 64, 0.10);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}
.aboutus-stats .stat-item:first-child { margin-left: 0; }
.aboutus-stats .stat-item:last-child  { margin-right: 0; }
.aboutus-stats .stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0px 8px 30px 0px rgba(28, 45, 64, 0.15);
}
.aboutus-stats .stat-number {
    margin-bottom: 6px;
    color: #2386EE;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
}
.aboutus-stats .stat-number small {
    font-size: 20px;
    font-weight: 400;
}
.aboutus-stats .stat-desc {
    color: rgba(6, 24, 40, 0.55);
    font-size: 14px;
    line-height: 20px;
}

/* ========== 通用 Section ========== */
.aboutus-section {
    width: 1200px;
    margin: 0 auto;
    padding-top: 90px;
    padding-bottom: 90px;
}
.aboutus-section .section-header {
    text-align: center;
    margin-bottom: 55px;
}
.aboutus-section .section-tag {
    display: inline-block;
    margin-bottom: 12px;
    color: #2386EE;
    font-size: 13px;
    letter-spacing: 1px;
}
.aboutus-section .section-title {
    margin-bottom: 14px;
    color: #061828;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
}
.aboutus-section .section-divider {
    width: 50px;
    height: 3px;
    margin: 0 auto;
    background: linear-gradient(90deg, #0086F1 0%, #00CCFE 100%);
    border-radius: 2px;
}
.aboutus-section .section-desc {
    margin-top: 16px;
    color: rgba(6, 24, 40, 0.55);
    font-size: 15px;
    line-height: 26px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

/* ========== 公司简介 Section ========== */
.aboutus-profile {
    width: 1200px;
    margin: 0 auto;
    padding-top: 90px;
    padding-bottom: 90px;
}
.aboutus-profile .profile-grid {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}
.aboutus-profile .profile-left {
    flex: 1;
    text-align: center;
}
.aboutus-profile .profile-left h2 {
    margin-bottom: 22px;
    color: #061828;
    font-size: 28px;
    font-weight: 700;
    text-align: center;
}
.aboutus-profile .profile-left p {
    margin-bottom: 18px;
    color: rgba(6, 24, 40, 0.7);
    font-size: 15px;
    line-height: 30px;
    text-align: center;
}
.aboutus-profile .profile-right {
    width: 380px;
    flex-shrink: 0;
}
.aboutus-profile .profile-card {
    padding: 36px 30px;
    background: #F8FAFD;
    border-radius: 8px;
    border-left: 4px solid #2386EE;
}
.aboutus-profile .profile-card h3 {
    margin-bottom: 10px;
    color: #061828;
    font-size: 18px;
    font-weight: 600;
}
.aboutus-profile .profile-card p {
    color: rgba(6, 24, 40, 0.65);
    font-size: 14px;
    line-height: 26px;
    margin-bottom: 0;
}
.aboutus-profile .profile-card + .profile-card {
    margin-top: 18px;
}

/* ========== 核心业务 Section (暗色背景) ========== */
.aboutus-business {
    padding: 90px 0 90px 0;
    background: #F7F9FC;
}
.aboutus-business .business-grid {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.aboutus-business .business-card {
    width: calc((100% - 40px) / 3);
    min-height: 230px;
    padding: 32px 28px;
    background: #FFFFFF;
    border-radius: 6px;
    box-shadow: 0px 3px 14px 0px rgba(28, 45, 64, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    text-align: left;
}
.aboutus-business .business-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, #2386EE 0%, #00CCFE 100%);
    opacity: 0;
    transition: opacity 0.3s;
}
.aboutus-business .business-card:hover {
    transform: translateY(-6px);
    box-shadow: 0px 12px 36px 0px rgba(28, 45, 64, 0.14);
}
.aboutus-business .business-card:hover::after {
    opacity: 1;
}
.business-card .card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.business-card .card-header .card-icon {
    margin-bottom: 0;
    flex-shrink: 0;
}
.business-card .card-header .card-num {
    margin-bottom: 0;
    flex-shrink: 0;
}
.business-card .card-header .card-title {
    margin-bottom: 0;
}
.business-card .card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(35,134,238,0.1) 0%, rgba(0,204,254,0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #2386EE;
}
.business-card .card-num {
    display: inline-block;
    margin-bottom: 10px;
    color: #2386EE;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
}
.business-card .card-title {
    margin-bottom: 10px;
    color: #061828;
    font-size: 18px;
    font-weight: 600;
}
.business-card .card-desc {
    color: rgba(6, 24, 40, 0.6);
    font-size: 14px;
    line-height: 24px;
}

/* ========== CTA 条 ========== */
.aboutus-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #061828 0%, #0d2b45 100%);
    text-align: center;
}
.aboutus-cta .cta-title {
    margin-bottom: 12px;
    color: #FFFFFF;
    font-size: 30px;
    font-weight: 600;
}
.aboutus-cta .cta-desc {
    margin-bottom: 32px;
    color: rgba(255,255,255,0.55);
    font-size: 15px;
}
.aboutus-cta .cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 44px;
    background: linear-gradient(135deg, #2386EE 0%, #00CCFE 100%);
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 500;
    border-radius: 30px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0px 6px 24px 0px rgba(35,134,238,0.4);
}
.aboutus-cta .cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0px 10px 32px 0px rgba(35,134,238,0.55);
}
.aboutus-cta .cta-arrow {
    font-size: 18px;
    transition: transform 0.3s;
}
.aboutus-cta .cta-btn:hover .cta-arrow {
    transform: translateX(4px);
}

/* ========== 响应式：平板 (751px - 1200px) ========== */
@media screen and (min-width: 751px) and (max-width: 1200px) {
    .aboutus-banner .banner-content,
    .aboutus-stats,
    .aboutus-section,
    .aboutus-profile,
    .aboutus-business .business-grid {
        width: 92%;
    }
    .aboutus-banner {
        height: 360px;
    }
    .aboutus-banner .banner-title {
        font-size: 32px;
    }
    .aboutus-stats .stat-number {
        font-size: 28px;
    }
    .aboutus-profile .profile-grid {
        flex-direction: column;
        gap: 30px;
    }
    .aboutus-profile .profile-right {
        width: 100%;
    }
    .aboutus-business .business-card {
        width: calc((100% - 20px) / 2);
    }
    .aboutus-section .section-title {
        font-size: 26px;
    }
}

/* ========== 响应式：手机 (<=750px) ========== */
@media screen and (max-width: 750px) {
    .aboutus-banner {
        height: 320px;
        padding: 0 4vw;
    }
    .aboutus-banner .banner-content {
        width: 100%;
        padding-top: 40px;
    }
    .aboutus-banner .banner-title {
        font-size: 26px;
        letter-spacing: 1px;
    }
    .aboutus-banner .banner-subtitle {
        font-size: 14px;
        line-height: 24px;
    }

    .aboutus-stats {
        width: 92%;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: -30px;
    }
    .aboutus-stats .stat-item {
        flex: 0 0 calc(50% - 5px);
        margin: 0;
        padding: 20px 10px 16px;
    }
    .aboutus-stats .stat-number {
        font-size: 24px;
    }
    .aboutus-stats .stat-number small {
        font-size: 14px;
    }
    .aboutus-stats .stat-desc {
        font-size: 12px;
    }

    .aboutus-section {
        width: 92%;
        padding-top: 50px;
        padding-bottom: 50px;
    }
    .aboutus-section .section-header {
        margin-bottom: 30px;
    }
    .aboutus-section .section-title {
        font-size: 22px;
    }

    .aboutus-profile {
        width: 92%;
        padding-top: 40px;
        padding-bottom: 40px;
    }
    .aboutus-profile .profile-grid {
        flex-direction: column;
        gap: 24px;
    }
    .aboutus-profile .profile-right {
        width: 100%;
    }
    .aboutus-profile .profile-left h2 {
        font-size: 22px;
    }
    .aboutus-profile .profile-left p {
        font-size: 14px;
        line-height: 26px;
    }

    .aboutus-business {
        padding: 50px 0 50px 0;
    }
    .aboutus-business .business-grid {
        width: 92%;
        gap: 12px;
    }
    .aboutus-business .business-card {
        width: 100%;
        min-height: auto;
        padding: 24px 20px;
    }
    .business-card .card-title {
        font-size: 16px;
    }

    .aboutus-cta {
        padding: 50px 4vw;
    }
    .aboutus-cta .cta-title {
        font-size: 22px;
    }
    .aboutus-cta .cta-btn {
        padding: 12px 32px;
        font-size: 14px;
    }
}