.nav-link.item_about{
    color: #e20016;
}
.nav-link.item_about::after {
    width: 100%;
}

/* 关于我们 — 子页导航 */
.about-bread.bread {
    position: sticky;
    top: 88px;
    z-index: 35;
    background: #fff;
}

.about-cat-mobile {
    display: none;
    position: sticky;
    top: 88px;
    z-index: 34;
    background: #fff;
    box-shadow: 0 4px 4px rgba(0, 0, 0, .06);
    padding-top: 12px;
    padding-bottom: 12px;
}

.about-banner {
    height: 360px;
    margin-top: 0;
}

.about-banner__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.06);
    animation: aboutBannerZoom 10s ease-out forwards;
}

@keyframes aboutBannerZoom {
    to {
        transform: scale(1);
    }
}

.about-banner__mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, .25), rgba(0, 0, 0, .55));
    z-index: 1;
}

.about-banner__content {
    animation: aboutBannerIn .9s ease-out .2s both;
}

@keyframes aboutBannerIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.about-banner__content h1 {
    letter-spacing: 4px;
}

.about-bread .bread_box .item:last-child a {
    color: #d80c1e;
}

.about-cat-scroll {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.about-cat-scroll::-webkit-scrollbar {
    display: none;
}

.about-cat-btn {
    flex-shrink: 0;
    padding: 8px 16px;
    border: 1px solid #e5e5e5;
    border-radius: 20px;
    background: #fff;
    color: #666;
    font-size: 13px;
    text-decoration: none;
    transition: all .3s;
    white-space: nowrap;
}

.about-cat-btn.active {
    background: #e20016;
    border-color: #e20016;
    color: #fff;
}

/* 关于我们 — 区块间距与背景 */
.about-intro-section {
    background: linear-gradient(180deg, #fff 0%, #fff 72%, #f8f8f8 100%);
}

.about-history-section {
    background: linear-gradient(180deg, #f8f8f8 0%, #fff 14%, #fff 100%);
}

.about-block__head {
    text-align: center;
    margin-bottom: 40px;
}

.about-block__head .page_ftit {
    color: #aaa;
    font-weight: 300;
    letter-spacing: 1px;
}

.about-block__head .page_line {
    margin-left: auto;
    margin-right: auto;
}

.about-block__sub {
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.about-intro {
    gap: 56px;
    align-items: stretch;
}

.about-intro__main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-intro__panel {
    background: #fafafa;
    border-radius: 8px;
    padding: 32px 36px;
    position: relative;
    overflow: hidden;
}

.about-intro__panel::before {
    content: "";
    position: absolute;
    right: -30px;
    top: -30px;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(216, 12, 30, .04);
    pointer-events: none;
}

.about-intro__tag {
    display: inline-block;
    margin-bottom: 16px;
    padding: 5px 14px;
    background: rgba(216, 12, 30, .08);
    color: #d80c1e;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: .5px;
}

.about-intro__lead {
    position: relative;
    z-index: 1;
    margin-bottom: 18px;
    line-height: 1.875;
    color: #333;
    font-weight: 600;
}

.about-intro__panel p:last-child {
    position: relative;
    z-index: 1;
    margin: 0;
}

.about-intro__img {
    flex: 0 0 42%;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 6px 28px rgba(25, 27, 35, .08);
}

.about-intro__img img {
    width: 100%;
    display: block;
    object-fit: cover;
    min-height: 100%;
    height: 100%;
    transition: transform .5s ease;
}

.about-intro__caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 28px 20px 14px;
    background: linear-gradient(transparent, rgba(0, 0, 0, .55));
    color: #fff;
    font-size: 14px;
    letter-spacing: 1px;
}

.about-stats {
    gap: 16px;
    flex-wrap: wrap;
}

.about-stat {
    flex: 1;
    min-width: 160px;
    background: #f5f5f5;
    border-radius: 8px;
    padding: 22px 26px;
    transition: background .3s ease;
}

.about-stat__num {
    color: #e20016;
    font-weight: 700;
    font-family: Arial, sans-serif;
    margin-bottom: 8px;
    line-height: 1;
}

.about-stat__label {
    line-height: 1.4;
}

.about-shareholder-section {
    position: relative;
    min-height: 520px;
    background: url(../img/about_shareholder_bg.jpg) no-repeat center/cover;
    background-attachment: scroll;
}

.about-shareholder-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(6, 24, 52, .62) 0%, rgba(6, 24, 52, .32) 50%, rgba(6, 24, 52, .08) 100%);
    pointer-events: none;
}

.about-shareholder-section .width1400 {
    position: relative;
    z-index: 1;
}

.about-shareholder__title .page_tit,
.about-shareholder__title .page_ftit {
    color: #fff;
    text-align: left;
}

.about-shareholder__title .page_ftit {
    margin-top: 8px;
    color: rgba(255, 255, 255, .85);
    font-weight: 300;
}

.about-shareholder__desc {
    max-width: 720px;
    margin-top: 30px;
    color: #fff;
    text-indent: 2em;
}

.about-shareholder__desc p {
    margin: 0 0 16px;
}

.about-shareholder__desc p:last-child {
    margin-bottom: 0;
}

.about-shareholder__lists {
    max-width: 746px;
    margin-top: 55px;
    gap: 10px;
}

.about-shareholder__item {
    width: calc(50% - 5px);
    min-height: 85px;
    background: #fff;
    color: #d80c1e;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 16px 20px;
    box-sizing: border-box;
    gap: 10px;
    border-radius: 6px;
    transition: transform .3s ease, box-shadow .3s ease;
}

.about-shareholder__logo {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    object-fit: contain;
}

.about-timeline {
    position: relative;
    padding-left: 35px;
}

.about-timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, #d80c1e 0%, rgba(216, 12, 30, .2) 100%);
}

.about-timeline__item {
    position: relative;
    padding-bottom: 40px;
}

.about-timeline__item:last-child {
    padding-bottom: 0;
}

.about-timeline__dot {
    position: absolute;
    left: -35px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #d80c1e;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px #d80c1e;
}

.about-timeline__card {
    display: flex;
    align-items: center;
    gap: 28px;
    background: #fff;
    border-radius: 8px;
    padding: 28px 32px;
    box-shadow: 0 4px 20px rgba(25, 27, 35, .08);
    transition: box-shadow .3s ease, transform .3s ease;
    overflow: hidden;
}

.about-timeline__content {
    flex: 1;
    min-width: 0;
}

.about-timeline__img {
    flex: 0 0 42%;
    max-width: 420px;
    border-radius: 6px;
    overflow: hidden;
}

.about-timeline__img img {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform .5s ease;
}

.about-timeline__card:hover .about-timeline__img img {
    transform: scale(1.04);
}

.about-timeline__item:nth-child(even) .about-timeline__card {
    flex-direction: row-reverse;
}

.about-timeline__period {
    margin-bottom: 12px;
}

.about-timeline__period span {
    color: #d80c1e;
    font-size: 16px;
    margin-left: 12px;
    font-weight: 600;
}

.about-timeline__card p,
.about-timeline__desc {
    margin: 0;
}

.about-timeline__desc p {
    margin-bottom: 12px;
}

.about-timeline__desc p:last-child {
    margin-bottom: 0;
}

/* 文化品牌页 — 对齐 xysoe.com/culture.html 布局 */
.culture-banner .about-banner__content {
    animation: cultureBannerIn .9s ease-out .2s both;
}

@keyframes cultureBannerIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


.culture_lists__title .page_tit {
    letter-spacing: 2px;
}

/* 整页连贯渐变：面包屑下白底 → 中部灰带 → 底部回白 */
.culture_pg01 {
    background: linear-gradient(180deg,
        #fafafa 0%,
        #fff 6%,
        #fff 38%,
        #f6f6f6 100%);
}

.culture_pg02 {
    background: linear-gradient(180deg,
        #f6f6f6 0%,
        #f6f6f6 62%,
        #fafafa 82%,
        #fff 100%);
}
.culture_lists .list:last-child{
    width: 100%;
    margin-right: 0%;
}
@media only screen and (min-width: 961px) {
    .about-intro__img:hover img {
        transform: scale(1.04);
    }
    .about-stat:hover {
        background: #f0f0f0;
    }
    .about-shareholder__item:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
    }
    .about-timeline__card:hover {
        box-shadow: 0 12px 28px rgba(25, 27, 35, .12);
        transform: translateY(-4px);
    }
}
@media only screen and (max-width: 768px) {
    .about-bread.bread {
        display: block;
        position: static;
    }

    .about-bread .item-r {
        display: none;
    }

    .about-cat-mobile {
        display: none;
        top: 60px;
    }

    .about-banner {
        height: 220px;
    }

    .about-block__head {
        margin-bottom: 28px;
    }

    .about-intro {
        flex-direction: column;
        gap: 28px;
    }

    .about-intro__panel {
        padding: 24px 22px;
    }

    .about-intro__img {
        flex: none;
        width: 100%;
    }

    .about-intro__img img {
        min-height: 220px;
        height: 220px;
    }

    .about-stat {
        min-width: 100%;
    }

    .about-shareholder-section {
        min-height: auto;
    }

    .about-shareholder__title .page_tit,
    .about-shareholder__title .page_ftit {
        text-align: center;
    }

    .about-shareholder__desc {
        margin-top: 24px;
        text-indent: 0;
    }

    .about-shareholder__lists {
        max-width: none;
        margin-top: 28px;
    }

    .about-shareholder__item {
        width: 100%;
        min-height: 55px;
        padding: 14px 16px;
    }

    .about-timeline {
        padding-left: 24px;
    }

    .about-timeline__dot {
        left: -24px;
        width: 12px;
        height: 12px;
    }

    .about-timeline__card {
        flex-direction: column !important;
        align-items: stretch;
        gap: 16px;
        padding: 22px 20px;
    }

    .about-timeline__img {
        flex: none;
        max-width: none;
        width: 100%;
    }

    .about-timeline__img img {
        height: 180px;
    }
    .about-timeline__period span {
        display: block;
        margin-left: 0;
        margin-top: 4px;
    }
}