/* about.css - 关于我们页面样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    background: #FFFFFF;
    line-height: 1.31982421875;
}

.about-container {
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    background: #FFFFFF;
}

/* Header */
.header {
    background: #FFFFFF;
    box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 60px;
}

.header-content {
    display: flex;
    align-items: center;
    padding: 10px 0;
    gap: 190px;
    width: 1360px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    width: 338px;
    height: 40px;
}

.logo img {
    width: 100%;
    height: 100%;
}

.nav-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 0 1 auto;
    gap: 101px;
}

.nav-menu {
    display: flex;
    align-items: stretch;
    gap: 93.67px;
    flex: 0 1 auto;
}

.nav-menu a {
    text-decoration: none;
    color: #000000;
    font-family: 'Microsoft YaHei', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.32em;
    height: 22px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.nav-menu a:hover {
    color: #269FCA;
}

.nav-menu a.active {
    color: #269FCA;
    font-weight: 700;
}

/* Language Switch */
.lang-switch {
    position: relative;
    width: 64px;
    height: 24px;
    background: #D9D9D9;
    border-radius: 8px;
    display: flex;
    align-items: center;
}

.lang-switch-active {
    position: absolute;
    top: 0;
    left: 0;
    width: 32px;
    height: 24px;
    background: #1AA1E6;
    border-radius: 8px 0px 0px 8px;
    transition: all 0.3s ease;
}

.lang-zh, .lang-en {
    width: 32px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Microsoft YaHei', sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 1.32em;
    cursor: pointer;
    z-index: 1;
    transition: color 0.3s ease;
}

.lang-zh {
    color: #FFFFFF;
}

.lang-en {
    color: #595757;
}

/* Banner Section */
.banner-section {
    width: 100%;
    height: 360px;
    overflow: hidden;
    position: relative;
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
    background: #ffffff;
}

.container {
    max-width: 1360px;
    margin: 0 auto;
  
}

.section-head {
    width: 1360px;
    margin-left: auto;
    margin-right: auto;
    height: 98px;
    display: grid;
    grid-template-rows: 42px 31px 33px;
    align-content: start;
    position: relative;
    margin-bottom: 40px;
}

.section-head .decor {
    grid-row: 2;
    width: 100%;
    height: 31px;
    object-fit: cover;
    position: relative;
    z-index: 0;
}

.section-head h2 {
    grid-row: 1;
    margin: 0;
    font-size: 32px;
    font-weight: 700;
    z-index: 2;
    text-align: center;
    color: #000;
    line-height: 1;
}

.section-head .en {
    grid-row: 3;
    margin: 0;
    font-size: 25px;
    font-weight: 400;
    z-index: 2;
    align-self: start;
    /* padding-top: 6px; */
    text-align: center;
    color: #000;
    line-height: 1;
}

.title-bar {
    grid-row: 2;
    align-self: center;
    height: 2px;
    background: #595757;
    width: 161.55px;
    justify-self: center;
    position: absolute;
    z-index: 1;
    top: 12px;
}

/* Section Styles */
.section {
    margin-bottom: 40px;
    background: #ffffff;
    overflow: hidden;
}

.section-head.about-title {
    /* width: 1360px; */
    margin-left: auto;
    margin-right: auto;
    height: 98px;
    display: grid;
    grid-template-rows: 42px 31px 33px;
    align-content: start;
    position: relative;
}

.section-head.about-title .decor {
    grid-row: 2;
    width: 100%;
    height: 31px;
    object-fit: cover;
    position: relative;
    z-index: 0;
}

.section-head.about-title .title-bar {
    grid-row: 2;
    align-self: center;
    height: 2px;
    background: #595757;
    width: 161.55px;
    justify-self: center;
    position: absolute;
    z-index: 1;
    top: 12px;
}

.section-head.about-title h2 {
    grid-row: 1;
    margin: 0;
    font-size: 32px;
    font-weight: 700;
    z-index: 2;
}

.section-head.about-title .en {
    grid-row: 3;
    margin: 0;
    font-size: 25px;
    font-weight: 400;
    z-index: 2;
    align-self: start;
    /* padding-top: 6px; */
}

/* Company Introduction */
.intro-content {
    display: flex;
    align-items: center;
    gap: 40px;
    width: 100%;
}

.intro-image {
    width: 637px;
    height: 358px;
    flex-shrink: 0;
}

.intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.intro-text {
    width: 683px;
    height: 358px;
    font-family: 'Microsoft YaHei';
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5625em;
    color: #323232;
    overflow-y: auto;
}

/* Organizations Section */
.organizations-content {
    display: flex;
    align-items: center;
    width: 100%;
}

.organizations-image {
    width: 100%;
    height: auto;
}

.organizations-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

/* History Section */
.history-content {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.history-content img {
    width: 100%;
    max-width: 1360px;
    height: auto;
    object-fit: cover;
    display: block;
}

/* Footer - 完全复制 index.html 样式 */
.site-footer {
    color: #fff;
    background: url('../images/bottom-background.png') center/cover no-repeat;
}

.site-footer .footer-top {
    /* background: rgba(0, 0, 0, 0.55); */
    padding: 24px 0 16px;
}

.site-footer h4 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 700;
}

.site-footer .tagline {
    margin: 0 0 14px;
    font-size: 16px;
    color: rgba(255,255,255,.95);
}

/* Left info + right two QR columns */
.site-footer .footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    align-items: start;
}

.site-footer .contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 15px;
    margin-top: 80px;
}

.site-footer .item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;

}

.site-footer .icon {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.site-footer .qrs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    justify-items: center;
}

.site-footer .qr img {
    width: 258px;
    height: 258px;
    object-fit: cover;
    background: #fff;
    padding: 10px;
    border-radius: 0px;
}

.site-footer .qr p {
    text-align: center;
    margin: 6px 0 0;
    color: #fff;
    font-size: 16px;
}

.footer-bottom {
    background: #00060d;
}

.footer-bottom .bottom-content {
    max-width: 1360px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 14px 16px;
    color: #fff;
    font-size: 16px;
}

.footer-bottom .divider {
    display: inline-block;
    width: 1px;
    height: 18px;
    background: #fff;
    opacity: 0.9;
}

.footer-bottom .icp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-bottom .icp-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
}

/* Header Responsive Design */
@media (max-width: 1200px) {
    .header-content {
        padding: 20px 40px;
        gap: 60px;
    }

    .nav-menu {
        gap: 40px;
    }

    .logo img {
        width: 300px;
        height: 30px;
    }
}

@media (max-width: 768px) {
    .banner-section {
        height: 200px;
    }

    .header-content {
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }

    .nav-section {
        flex-direction: column;
        gap: 20px;
        width: 100%;
    }

    .nav-menu {
        gap: 20px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .nav-menu a {
        font-size: 14px;
    }

    .logo img {
        width: 250px;
        height: 25px;
    }

    .lang-switch {
        align-self: center;
    }
}

@media (max-width: 1400px) {
    .section-head {
        width: 90%;
        max-width: 1360px;
    }
}

@media (max-width: 768px) {
    .section-head {
        width: 95%;
        height: auto;
        grid-template-rows: auto auto auto;
        gap: 10px;
        padding: 20px 0;
    }

    .section-head h2 {
        font-size: 28px;
    }

    .section-head .en {
        font-size: 20px;
        padding-top: 0;
    }

    .title-bar {
        position: static;
        width: 120px;
        top: auto;
    }

    .intro-content {
        flex-direction: column;
        gap: 20px;
    }

    .intro-image, .intro-text {
        width: 100%;
        height: auto;
    }

    .intro-image {
        height: 200px;
    }

    .intro-text {
        font-size: 14px;
        line-height: 1.5;
    }

    .organizations-image img {
        height: auto;
    }

    .history-content img {
        width: 100%;
        max-width: 100%;
    }
}