/* ============================================
   关于我们 - 专属样式
   公共头尾见 common.css
   ============================================ */

/* ============================================
   Hero
   ============================================ */
.about-hero {
    position: relative;
    width: 100%;
    height: 620px;
    overflow: hidden;
}

.about-hero-bg {
    position: absolute;
    inset: 0;
    background: url('../images/hero-bg.jpg') center/cover no-repeat;
    z-index: 1;
}

.about-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 2;
}

.about-hero-content {
    position: relative;
    z-index: 3;
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--container-side);
    padding-top: 180px;
}

.about-hero-title {
    font-size: 60px;
    font-weight: 600;
    color: var(--color-white);
    line-height: 1.03;
    margin-bottom: 14px;
}

.about-hero-subtitle {
    font-size: 30px;
    font-weight: 600;
    color: var(--color-white);
    line-height: 1.4;
    letter-spacing: 4px;
}

/* ============================================
   Tabs
   ============================================ */
.about-tabs {
    max-width: 1522px;
    margin: 0 auto;
    padding: 40px var(--container-side) 0;
    display: flex;
    align-items: center;
    gap: 0;
    border-bottom: 2px solid #eee;
}

.about-tab {
    flex: 1;
    text-align: center;
    font-size: 22px;
    color: var(--color-text);
    font-weight: 400;
    padding: 0 0 18px;
    position: relative;
    transition: color 0.2s;
    background: none;
    border: none;
    cursor: pointer;
}

.about-tab:hover {
    color: var(--color-brand-gold);
}

.about-tab.is-active {
    color: var(--color-brand-gold);
    font-weight: 600;
}

.about-tab.is-active::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -2px;
    width: 100px;
    height: 4px;
    background: var(--color-brand-gold);
}

/* ============================================
   内容区块
   ============================================ */
.about-content {
    display: block;
}

.about-content[style*="display: none"] {
    display: none !important;
}

/* ============================================
   公司介绍(浅色)
   ============================================ */
.about-intro {
    background: var(--color-white);
    padding: 60px var(--container-side) 80px;
}

.about-intro-inner {
    max-width: 1776px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 40px;
}

.about-intro-image {
    flex: 0 0 410px;
    width: 410px;
}

.about-intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-intro-text {
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-text);
}

.about-intro-text p {
    margin-bottom: 26px;
}

.about-intro-text ol {
    list-style: none;
    counter-reset: biz;
    padding-left: 0;
}

.about-intro-text ol li {
    counter-increment: biz;
    padding-left: 28px;
    position: relative;
    margin-bottom: 6px;
    font-weight: 600;
}

.about-intro-text ol li::before {
    content: counter(biz) "、";
    position: absolute;
    left: 0;
    color: var(--color-text);
}

/* ============================================
   详细介绍(深色)
   ============================================ */
.about-detail {
    background: var(--color-deep-navy);
    color: var(--color-white);
    padding: 60px var(--container-side) 80px;
}

.about-detail-inner {
    max-width: 1776px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 40px;
}

.about-detail-text {
    flex: 1;
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-footer-text);
}

.about-detail-text p {
    margin-bottom: 18px;
}

.about-detail-image {
    flex: 0 0 680px;
    width: 680px;
    border-radius: var(--radius-card);
    overflow: hidden;
}

.about-detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   响应式 - 关于页专属
   ============================================ */

/* 平板 (≤ 1200px) */
@media (max-width: 1200px) {
    .about-tab {
        font-size: 18px;
        padding-bottom: 14px;
    }

    .about-intro-image {
        flex: 0 0 320px;
        width: 320px;
    }

    .about-detail-image {
        flex: 0 0 520px;
        width: 520px;
    }
}

/* ============================================
   组织架构
   ============================================ */
.about-org {
    background: var(--color-white);
    padding: 60px var(--container-side) 80px;
}

.about-org-inner {
    max-width: 1776px;
    margin: 0 auto;
}

.about-org-image {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.about-org-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   代理品牌
   ============================================ */
.about-brand {
    background: #f7f8fa;
    padding: 60px var(--container-side) 80px;
}

.about-brand-inner {
    max-width: 1776px;
    margin: 0 auto;
}

.about-brand-grid {
}

.brand-item {
    border-radius: 8px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}

.brand-item img {
    max-width: 100%;
    object-fit: contain;
}

/* ============================================
   联系我们
   ============================================ */
.about-contact {
    padding: 80px var(--container-side);
    background: url('../images/contact-map.png') center center no-repeat;
    background-size: cover;
    width: 90%;
    border-radius: 20px;
    margin: 145px auto 200px;
}

.contact-container {
    /* max-width: 1400px; */
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    color: #ffffff;
}

.contact-item {
    width: 32%;
    min-width: 265px;
}

.contact-item h3 {
    font-size: 28px;
    margin-bottom: 24px;
    font-weight: normal;
    color: #ffffff;
}

.contact-item p {
    font-size: 18px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.9);
}

/* 手机 (≤ 768px) */
@media (max-width: 768px) {
    .about-hero {
        height: 280px;
    }

    .about-hero-content {
        padding-top: 100px;
    }

    .about-hero-title {
        font-size: 28px;
    }

    .about-hero-subtitle {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .about-tabs {
        flex-wrap: wrap;
        gap: 0;
        padding: 20px var(--container-side) 0;
    }

    .about-tab {
        flex: 0 0 50%;
        font-size: 13px;
        padding: 10px 4px 12px;
    }

    .about-tab.is-active::after {
        width: 50px;
        height: 3px;
    }

    .about-intro {
        padding: 30px var(--container-side) 40px;
    }

    .about-intro-inner {
        flex-direction: column;
        gap: 24px;
    }

    .about-intro-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .about-intro-text {
        font-size: 14px;
        line-height: 1.8;
    }

    .about-detail {
        padding: 30px var(--container-side) 40px;
    }

    .about-detail-inner {
        flex-wrap: wrap;
        flex-direction: column-reverse;
        gap: 24px;
    }

    .about-detail-text {
        font-size: 14px;
        line-height: 1.8;
    }

    .about-detail-image {
        flex: 0 0 auto;
        width: 100%;
    }

    /* 组织架构 - 移动端 */
    .about-org {
        padding: 30px var(--container-side) 40px;
    }

    /* 代理品牌 - 移动端 */
    .about-brand {
        padding: 30px var(--container-side) 40px;
    }

    .about-brand-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .brand-item {
        padding: 20px;
        min-height: 80px;
    }

    .brand-item img {
        width: 80%;
        height: auto;
    }

    /* 联系我们 - 移动端 */
    .about-contact {
        padding: 30px var(--container-side) 40px;
    }

    .contact-container {
        flex-direction: column;
        gap: 40px;
    }

    .contact-item {
        width: 100%;
    }

    .contact-item h3 {
        font-size: 22px;
        margin-bottom: 16px;
    }

    .contact-item p {
        font-size: 14px;
        line-height: 1.8;
    }
}

/* 超小屏 (≤ 480px) */
@media (max-width: 480px) {
    .about-hero {
        height: 200px;
    }

    .about-hero-content {
        padding-top: 100px;
    }

    .about-hero-title {
        font-size: 22px;
    }

    .about-hero-subtitle {
        font-size: 12px;
    }

    .about-tabs {
        padding: 16px var(--container-side) 0;
    }

    .about-tab {
        flex: 0 0 50%;
        font-size: 12px;
        padding: 8px 2px 10px;
    }

    .about-tab.is-active::after {
        width: 40px;
        height: 2px;
    }

    .about-intro {
        padding: 24px var(--container-side) 30px;
    }

    .about-intro-text {
        font-size: 13px;
    }

    .about-intro-text ol li {
        padding-left: 22px;
    }

    .about-detail {
        padding: 24px var(--container-side) 30px;
    }

    .about-detail-text {
        font-size: 13px;
    }

    /* 代理品牌 - 超小屏 */
    .about-brand-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .brand-item {
        padding: 0px;
        min-height: 70px;
    }

    .brand-item img {
        /* max-height: 40px; */
    }

    /* 联系我们 - 超小屏 */
    .contact-item h3 {
        font-size: 18px;
    }

    .contact-item p {
        font-size: 13px;
    }
}