@charset "utf-8";
/*
 * 关于我们页面样式 / About Us Page Styles
 * 深圳市爱租网络有限公司 2016-2026 / Shenzhen iZu Network Co., Ltd. 2016-2026
 * 现代化科技感设计 v2.0 — 单页锚点导航
 */

/* ===== 全局平滑滚动 ===== */
html {
    scroll-behavior: smooth;
}

/* ===== 区块间距 + 入场动画 ===== */
.about-section-block {
    scroll-margin-top: 100px;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .65s cubic-bezier(.25,.46,.45,.94), transform .65s cubic-bezier(.25,.46,.45,.94);
}
.about-section-block.visible {
    opacity: 1;
    transform: translateY(0);
}
.about-section-block:last-child {
    margin-bottom: 0;
}

/* ===== Banner 区域 ===== */
.about-banner {
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    background-size: cover !important;
    background-position: center center !important;
    background-repeat: no-repeat !important;
    overflow: hidden;
}
.about-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(6,22,52,.85) 0%, rgba(11,60,120,.7) 50%, rgba(6,22,52,.9) 100%);
    z-index: 1;
    pointer-events: none;
}
.about-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    /* background: linear-gradient(to top, #f7f9fc, transparent); */
    z-index: 2;
    pointer-events: none;
}
.about-banner-inner {
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}
.about-banner-inner h1 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 10px;
    letter-spacing: 2px;
    color: #fff;
}
.about-banner-inner h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: rgba(255,255,255,.6);
    margin: 12px auto 0;
    border-radius: 2px;
}
.about-banner-inner p {
    font-size: 16px;
    color: rgba(255,255,255,.75);
    margin: 0;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== 面包屑 ===== */
.about-bread {
    background: #fff;
    border-bottom: 1px solid var(--ent-line);
    padding: 14px 0;
    font-size: 13px;
    color: var(--ent-sub);
}
.about-bread .ent-wrap {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.about-bread a {
    color: var(--ent-sub);
    transition: color .2s;
}
.about-bread a:hover {
    color: var(--ent-primary);
}
.about-bread .sep {
    margin: 0 8px;
    color: #ccc;
}
.about-bread .cur {
    color: var(--ent-primary);
    font-weight: 500;
}

/* ===== 主内容区布局 ===== */
.about-section {
    padding: 60px 0 70px;
    background: #f7f9fc;
}
.about-layout {
    display: flex;
    gap: 44px;
    align-items: flex-start;
}
.about-main {
    flex: 1;
    min-width: 0;
}

/* ===== 侧边栏 ===== */
.about-sidebar {
    width: 270px;
    flex: 0 0 270px;
    position: sticky;
    top: 20px;
}
.about-side-widget {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,.06);
    border: 1px solid var(--ent-line);
}
.about-side-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    padding: 18px 22px;
    margin: 0;
    background: linear-gradient(135deg, var(--ent-primary) 0%, #1a6dc9 100%);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.about-side-title i {
    opacity: .85;
    font-size: 16px;
}
.about-side-body {
    padding: 6px 0;
}
.about-side-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}
.about-side-menu li {
    position: relative;
}
.about-side-menu li a {
    display: block;
    padding: 12px 22px;
    font-size: 14px;
    color: #555;
    transition: all .25s;
    border-left: 3px solid transparent;
    position: relative;
}
.about-side-menu li a::before {
    content: '';
    position: absolute;
    left: 22px;
    right: 22px;
    bottom: 0;
    height: 1px;
    background: #f0f2f5;
}
.about-side-menu li:last-child a::before {
    display: none;
}
.about-side-menu li a:hover {
    color: var(--ent-primary);
    background: rgba(11,77,162,.04);
    border-left-color: var(--ent-primary);
    padding-left: 26px;
}
.about-side-menu li.curr > a {
    color: var(--ent-primary);
    font-weight: 600;
    background: rgba(11,77,162,.06);
    border-left-color: var(--ent-primary);
}
.about-side-menu .sub {
    list-style: none;
    margin: 0;
    padding: 0;
    background: #fafbfc;
}
.about-side-menu .sub li a {
    padding-left: 40px;
    font-size: 13px;
    padding-top: 9px;
    padding-bottom: 9px;
}
.about-side-menu .sub li a::before {
    left: 40px;
    right: 22px;
}
.about-side-menu .sub li a:hover {
    padding-left: 44px;
}
.about-side-menu .sub li.curr > a {
    color: var(--ent-primary);
    font-weight: 600;
    border-left-color: var(--ent-primary);
}

/* ===== Section header（通用） ===== */
.about-section-header {
    text-align: center;
    margin-bottom: 48px;
    position: relative;
}
.about-section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 12px;
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
}
.about-section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--ent-primary), #1a8cff);
    margin: 16px auto 0;
    border-radius: 2px;
}
.about-section-header h2 .accent {
    color: var(--ent-primary);
}
.about-section-desc {
    font-size: 15px;
    color: #888;
    line-height: 1.8;
    margin: 18px auto 0;
    max-width: 700px;
}


/* ===== 空状态 ===== */
.about-empty {
    text-align: center;
    padding: 60px 20px;
    color: #bbb;
    font-size: 15px;
}

/* ===== 公司简介（intro）- 深色覆盖风格 ===== */
.about-intro-video {
    flex: 0 0 55%;
    max-width: 55%;
}
.about-video-player {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: #000;
    border: 2px solid rgba(255,255,255,.25);
    box-shadow: 
        0 12px 48px rgba(0,0,0,.6),
        0 0 30px rgba(26,140,255,.12),
        0 2px 6px rgba(0,0,0,.3),
        inset 0 1px 0 rgba(255,255,255,.15);
    aspect-ratio: 16 / 9;
}
.about-video-player::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.2);
    pointer-events: none;
    z-index: 1;
}
.about-video-player video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    background: #111;
}
.about-video-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0,0,0,.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 24px;
    letter-spacing: .5px;
    border: 1px solid rgba(255,255,255,.15);
    pointer-events: none;
    z-index: 2;
}
.about-video-badge i {
    font-size: 18px;
    color: rgba(255,255,255,.9);
}

.about-intro-text {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    align-items: center;
    gap: 50px;
    margin-bottom: 50px;
    background: 
        linear-gradient(135deg, rgba(22,32,50,.92), rgba(15,26,46,.85) 50%, rgba(11,20,36,.88) 100%),
        url(/images/enterprise/about/about_intro_poster.jpg) center/cover no-repeat;
    border-radius: 16px;
    padding: 48px 56px;
    box-shadow: 0 12px 48px rgba(0,0,0,.25);
    position: relative;
    overflow: hidden;
}
.about-intro-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(255,255,255,.3), rgba(26,140,255,.3), transparent);
    z-index: 1;
}
.about-content-text {
    font-size: 15px;
    line-height: 2;
    color: rgba(255,255,255,.92);
}
.about-content-text p {
    margin: 0 0 18px;
}
.about-content-text p:last-child {
    margin-bottom: 0;
}
.about-content-text img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,.06);
}
.about-intro-text .about-content-text {
    flex: 1;
}

/* 公司简介标题 — 放到卡片内部，居左对齐 */
.about-intro-header {
    flex: 0 0 100%;
    text-align: left;
    margin-bottom: 28px;
}
.about-intro-header h2 {
    font-size: 26px;
    letter-spacing: 1px;
    color: #fff;
}
.about-intro-header h2::after {
    margin: 14px 0 0;
    background: linear-gradient(90deg, rgba(255,255,255,.4), transparent);
}
.about-intro-header .about-section-desc {
    text-align: left;
    margin: 12px 0 0;
    max-width: 100%;
    color: rgba(255,255,255,.55);
}
.about-intro-img {
    flex: 0 0 360px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(11,77,162,.15);
    position: relative;
}
.about-intro-img::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 10px;
    pointer-events: none;
}
.about-intro-img img {
    width: 100%;
    display: block;
    transition: transform .5s;
}
.about-intro-img:hover img {
    transform: scale(1.06);
}

/* ===== 统计数据 — 精致卡片风格 ===== */
.about-intro-gallery {
    display: flex;
    justify-content: center;
    margin-top: 36px;
    padding-bottom: 8px;
}
.about-intro-gallery .about-intro-img {
    max-width: 720px;
    min-width: 0;
    flex: none;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 36px;
    padding-bottom: 8px;
}

.about-stat-item {
    width: auto;
    margin-right: 0;
    text-align: center;
    background: #fff;
    border-radius: 16px;
    padding: 44px 20px 34px;
    border: 1px solid #eef2f7;
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
    transition: all .35s cubic-bezier(.25,.46,.45,.94);
    position: relative;
    overflow: hidden;
}
.about-stat-item:last-child {
    margin-right: 0;
}
.about-stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--ent-primary), transparent);
    opacity: 0;
    transition: opacity .4s;
}
.about-stat-item:hover {
    border-color: rgba(11,77,162,.15);
    box-shadow: 0 12px 40px rgba(11,77,162,.1);
    transform: translateY(-5px);
}
.about-stat-item:hover::before {
    opacity: 1;
}

.about-stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(11,77,162,.08), rgba(26,140,255,.05));
    border-radius: 50%;
    transition: all .4s ease;
}
.about-stat-item:hover .about-stat-icon {
    background: linear-gradient(135deg, rgba(11,77,162,.15), rgba(26,140,255,.08));
    transform: scale(1.1) rotate(4deg);
}
.about-stat-icon i {
    font-size: 26px;
    color: var(--ent-primary);
}

.about-stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--ent-primary);
    line-height: 1.2;
    margin-bottom: 6px;
    font-family: "Arial Black", "PingFang SC", "Helvetica Neue", sans-serif;
}
.about-stat-unit {
    font-size: 16px;
    font-weight: 600;
    color: var(--ent-primary);
    margin-left: 2px;
}

.about-stat-label {
    font-size: 15px;
    color: #8899aa;
    font-weight: 500;
    letter-spacing: .5px;
}

/* ===== 企业文化（culture） ===== */
.about-culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.about-culture-card {
    background: #fff;
    border-radius: 14px;
    padding: 44px 28px 36px;
    text-align: center;
    transition: all .35s;
    position: relative;
    border: 1px solid var(--ent-line);
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
    overflow: hidden;
    cursor: default;
}
.about-culture-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, var(--ent-primary), #1a8cff, var(--ent-accent));
    border-radius: 2px;
    transition: transform .35s;
}
.about-culture-card:hover::after {
    transform: translateX(-50%) scaleX(1);
}
.about-culture-card:hover {
    box-shadow: 0 16px 44px rgba(11,77,162,.14);
    transform: translateY(-6px);
    border-color: rgba(11,77,162,.15);
}
.about-culture-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(11,77,162,.03), transparent 70%);
    pointer-events: none;
    transition: opacity .4s;
    opacity: 0;
}
.about-culture-card:hover::before {
    opacity: 1;
}
.about-culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(11,77,162,.08), rgba(26,140,255,.04));
    overflow: hidden;
    border: 2px solid rgba(11,77,162,.1);
    transition: all .35s;
}
.about-culture-card:hover .about-culture-icon {
    background: linear-gradient(135deg, rgba(11,77,162,.15), rgba(26,140,255,.08));
    transform: scale(1.1);
    border-color: rgba(11,77,162,.2);
    box-shadow: 0 8px 24px rgba(11,77,162,.15);
}
.about-culture-icon img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}
.about-culture-icon--default {
    font-size: 32px;
    color: var(--ent-primary);
}
.about-culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 8px;
    position: relative;
    z-index: 1;
}
.about-culture-card h4 {
    font-size: 14px;
    color: var(--ent-primary);
    font-weight: 600;
    margin: 0 0 12px;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}
.about-culture-card p {
    font-size: 13px;
    color: #999;
    line-height: 1.8;
    margin: 0;
    position: relative;
    z-index: 1;
}

/* ===== 竞争优势（advantage） ===== */
.about-advantage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.about-advantage-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #fff;
    border-radius: 12px;
    padding: 26px 28px;
    transition: all .3s;
    border: 1px solid var(--ent-line);
    box-shadow: 0 2px 12px rgba(0,0,0,.03);
    position: relative;
    overflow: hidden;
}
.about-advantage-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--ent-primary), #1a8cff);
    opacity: 0;
    transition: opacity .3s;
}
.about-advantage-card:hover::before {
    opacity: 1;
}
.about-advantage-card:hover {
    box-shadow: 0 10px 30px rgba(11,77,162,.1);
    transform: translateY(-3px);
    border-color: rgba(11,77,162,.15);
}
.about-advantage-icon {
    width: 64px;
    height: 64px;
    flex: 0 0 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(11,77,162,.08), rgba(11,77,162,.03));
    overflow: hidden;
    border: 1px solid rgba(11,77,162,.08);
    transition: all .3s;
}
.about-advantage-card:hover .about-advantage-icon {
    background: linear-gradient(135deg, rgba(11,77,162,.15), rgba(11,77,162,.06));
    transform: scale(1.05) rotate(-2deg);
}
.about-advantage-icon img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}
.about-advantage-icon--default {
    font-size: 28px;
    color: var(--ent-primary);
}
.about-adv-text {
    flex: 1;
    min-width: 0;
}
.about-adv-text h3 {
    font-size: 16px;
    font-weight: 600;
    color: #1a2332;
    margin: 0 0 6px;
}
.about-adv-text p {
    font-size: 13px;
    color: #999;
    line-height: 1.6;
    margin: 0;
}


/* ===== 员工活动（gallery） ===== */
.about-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.about-gallery-item {
    border-radius: 14px;
    overflow: hidden;
    transition: all .35s;
    background: #fff;
    border: 1px solid var(--ent-line);
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
    position: relative;
}
.about-gallery-item:hover {
    box-shadow: 0 14px 40px rgba(11,77,162,.14);
    transform: translateY(-6px);
}
.about-gallery-img {
    height: 250px;
    overflow: hidden;
    background: #eef2f7;
    position: relative;
}
.about-gallery-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.about-gallery-item:hover .about-gallery-img img {
    transform: scale(1.1);
}
.about-gallery-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.4), transparent 50%);
    opacity: 0;
    transition: opacity .35s;
}
.about-gallery-item:hover .about-gallery-img::after {
    opacity: 1;
}
.about-gallery-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 48px;
    color: #d0d5dd;
}
.about-gallery-caption {
    padding: 16px 20px;
    font-size: 15px;
    color: #1a2332;
    text-align: center;
    font-weight: 600;
    letter-spacing: 1px;
    position: relative;
}
.about-gallery-caption::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--ent-primary);
    border-radius: 1px;
}

/* ===== 荣誉资质（honor） ===== */
.about-honor-group {
    margin-bottom: 40px;
    background: #fff;
    border-radius: 14px;
    padding: 36px 36px 40px;
    border: 1px solid var(--ent-line);
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.about-honor-group:last-child {
    margin-bottom: 0;
}
.about-honor-group-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 24px;
    padding: 0 0 16px;
    border-bottom: 2px solid #eef0f4;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}
.about-honor-group-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--ent-primary);
}
.about-honor-group-title i {
    color: var(--ent-primary);
}
.about-honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.about-honor-grid-row {
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    position: relative;
    padding-bottom: 6px;
}
.about-honor-grid-row::-webkit-scrollbar {
    height: 4px;
}
.about-honor-grid-row::-webkit-scrollbar-track {
    background: transparent;
}
.about-honor-grid-row::-webkit-scrollbar-thumb {
    background: #d0d5dd;
    border-radius: 2px;
}
.about-honor-grid-row .about-honor-card {
    flex: 0 0 calc(25% - 15px);
    min-width: 0;
    box-sizing: border-box;
}
.about-honor-card {
    background: #f7f9fc;
    border: 1px solid var(--ent-line);
    border-radius: 10px;
    overflow: hidden;
    transition: all .3s;
}
.about-honor-card:hover {
    box-shadow: 0 10px 30px rgba(11,77,162,.1);
    transform: translateY(-4px);
    border-color: rgba(11,77,162,.15);
}
.about-honor-img {
    position: relative;
    height: 180px;
    overflow: hidden;
    background: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.about-honor-img img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 4px 16px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.06);
    border-radius: 4px;
    transition: transform .4s, box-shadow .4s;
}
.about-honor-card:hover .about-honor-img img {
    transform: scale(1.05);
    box-shadow: 0 12px 36px rgba(0,0,0,.16), 0 2px 8px rgba(0,0,0,.08);
}
.about-honor-info {
    padding: 18px 20px 20px;
    text-align: center;
}
.about-honor-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: #1a2332;
    margin: 0 0 8px;
}
.about-honor-info p {
    font-size: 13px;
    color: #999;
    line-height: 1.6;
    margin: 0;
}


/* ===== 企业认证（cert） ===== */
.about-cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.about-cert-card {
    background: #fff;
    border: 1px solid var(--ent-line);
    border-radius: 14px;
    overflow: hidden;
    transition: all .35s cubic-bezier(.25,.46,.45,.94);
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.about-cert-card:hover {
    box-shadow: 0 14px 44px rgba(11,77,162,.14);
    transform: translateY(-6px);
    border-color: rgba(11,77,162,.15);
}
.about-cert-img {
    height: 200px;
    overflow: hidden;
    background: #f0f2f5;
}
.about-cert-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.about-cert-card:hover .about-cert-img img {
    transform: scale(1.08);
}
.about-cert-body {
    padding: 22px 24px 26px;
}
.about-cert-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 10px;
    line-height: 1.4;
}
.about-cert-body p {
    font-size: 13px;
    color: #999;
    line-height: 1.8;
    margin: 0;
}

/* ===== 发展历程（timeline） ===== */
.about-timeline-title {
    font-size: 30px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 44px;
    text-align: center;
    letter-spacing: 2px;
    position: relative;
}
.about-timeline-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--ent-primary), #1a8cff);
    margin: 14px auto 0;
    border-radius: 2px;
}
.about-timeline-list {
    position: relative;
    padding-left: 50px;
}
.about-timeline-list::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--ent-primary), rgba(11,77,162,.1));
    border-radius: 2px;
}
.about-timeline-item {
    position: relative;
    margin-bottom: 36px;
    padding-left: 30px;
}
.about-timeline-item:last-child {
    margin-bottom: 0;
}
.about-timeline-dot {
    position: absolute;
    left: -38px;
    top: 10px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ent-primary), #1a8cff);
    border: 3px solid #f7f9fc;
    box-shadow: 0 0 0 4px rgba(11,77,162,.2);
    z-index: 2;
}
.about-timeline-year {
    display: inline-block;
    font-size: 24px;
    font-weight: 800;
    color: var(--ent-primary);
    margin-bottom: 10px;
    background: linear-gradient(135deg, rgba(11,77,162,.08), rgba(26,140,255,.04));
    padding: 3px 18px;
    border-radius: 8px;
    font-family: "Arial Black", "Helvetica Neue", sans-serif;
    letter-spacing: 1px;
    background-clip: padding-box;
}
.about-timeline-card {
    background: #fff;
    border: 1px solid var(--ent-line);
    border-radius: 12px;
    padding: 28px 32px;
    transition: all .35s;
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
    position: relative;
    overflow: hidden;
}
.about-timeline-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--ent-primary), #1a8cff);
    opacity: 0;
    transition: opacity .3s;
}
.about-timeline-card:hover::before {
    opacity: 1;
}
.about-timeline-card:hover {
    box-shadow: 0 12px 36px rgba(11,77,162,.1);
    transform: translateX(6px);
}
.about-timeline-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 8px;
}

.about-timeline-desc {
    font-size: 14px;
    line-height: 1.9;
    color: #555;
}
.about-timeline-desc p {
    margin: 0 0 10px;
}
.about-timeline-desc p:last-child {
    margin-bottom: 0;
}

/* 时间轴配图 — 小巧优雅 */
.about-timeline-img-wrap {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.about-timeline-img-wrap .about-timeline-img {
    flex: 0 0 auto;
    width: 200px;
    max-width: 45%;
}
.about-timeline-img-wrap .about-timeline-img img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,.07);
    border: 1px solid #f0f0f0;
    transition: transform .3s, box-shadow .3s;
}
.about-timeline-img-wrap .about-timeline-img img:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 20px rgba(0,0,0,.12);
}

@media (max-width: 640px) {
    .about-timeline-img-wrap .about-timeline-img {
        width: 140px;
        max-width: 45%;
    }
    .about-timeline-year {
        font-size: 20px;
    }
}

/* ===== 通用内容（fallback） ===== */
.about-generic-item {
    margin-bottom: 30px;
    background: #fff;
    border-radius: 14px;
    padding: 36px 38px;
    border: 1px solid var(--ent-line);
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
    transition: box-shadow .3s;
}
.about-generic-item:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,.06);
}
.about-generic-item h2 {
    font-size: 24px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 12px;
}
.about-generic-item h3 {
    font-size: 16px;
    font-weight: 500;
    color: #777;
    margin: 0 0 18px;
}
.about-generic-img {
    margin-bottom: 18px;
}
.about-generic-img img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,.06);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .about-culture-grid { grid-template-columns: repeat(2, 1fr); }
    .about-advantage-grid { grid-template-columns: repeat(2, 1fr); }
    .about-section-block { margin-bottom: 50px; }
    .about-banner { min-height: 260px; }
    .about-banner-inner h1 { font-size: 32px; }
}
@media (max-width: 992px) {
    .about-layout { flex-direction: column; }
    .about-sidebar {
        width: 100%;
        flex: none;
        position: static;
    }
    .about-main {
        width: 100%;
    }
    .about-side-menu { display: flex; flex-wrap: wrap; }
    .about-side-menu > li { flex: 0 0 50%; }
    .about-side-menu > li > a::before { display: none; }
    .about-side-menu .sub { display: none; }
    .about-intro-text {
        flex-direction: column;
        padding: 32px 28px;
    }
    .about-intro-video { flex: none; max-width: 100%; }
    .about-intro-text .about-content-text { width: 100%; }
    .about-culture-grid { grid-template-columns: repeat(2, 1fr); }
    .about-gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .about-honor-grid { grid-template-columns: repeat(2, 1fr); }
    .about-cert-grid { grid-template-columns: repeat(2, 1fr); }
    .about-banner { min-height: 220px; }
    .about-banner-inner h1 { font-size: 32px; }
    .about-stats { grid-template-columns: repeat(3, 1fr); }
    .about-section-header h2 { font-size: 28px; }
    .about-section-header { margin-bottom: 36px; }
    .about-section-block { margin-bottom: 40px; }
    .about-section { padding: 50px 0 60px; }
}
@media (max-width: 768px) {
    .about-side-menu > li { flex: 0 0 100%; }
    .about-advantage-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .about-banner {
        min-height: 200px;
    }
    .about-banner-inner h1 { font-size: 26px; }
    .about-banner-inner p { font-size: 14px; }
    .about-section { padding: 40px 0 50px; }
    .about-main { overflow: hidden; }
    .about-section-block { margin-bottom: 32px; scroll-margin-top: 80px; }
    .about-intro-text { padding: 28px 24px; gap: 30px; }
    .about-intro-video { flex: none; max-width: 100%; }
    .about-honor-group { padding: 28px 22px 32px; }
    .about-cert-img { height: 180px; }
    .about-gallery-img { height: 200px; }
    .about-honor-img { height: 150px; }
}
@media (max-width: 640px) {
    .about-intro-text { padding: 24px 20px; gap: 24px; }
    .about-intro-img { flex: none; width: 100%; max-width: 100%; }
    .about-intro-text .about-content-text { flex: none; width: 100%; }
    .about-banner { min-height: 160px; }
    .about-banner-inner h1 { font-size: 22px; letter-spacing: 2px; }
    .about-banner-inner p { font-size: 13px; }
    .about-culture-grid { grid-template-columns: 1fr; }
    .about-culture-card { padding: 34px 24px 30px; }
    .about-advantage-card {
        flex-direction: column;
        text-align: center;
        padding: 26px 22px;
    }
    .about-advantage-icon { flex: none; }
    .about-gallery-grid { grid-template-columns: 1fr; }
    .about-honor-grid { grid-template-columns: 1fr; }
    .about-cert-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 0 16px 8px; }
    .about-stat-item { padding: 24px 16px 20px; }
    .about-stat-num { font-size: 28px; }
    .about-stat-icon { width: 50px; height: 50px; }
    .about-stat-icon i { font-size: 22px; }
    .about-timeline-list { padding-left: 24px; }
    .about-timeline-list::before { left: 10px; }
    .about-timeline-dot { left: -32px; width: 16px; height: 16px; }
    .about-timeline-item { padding-left: 20px; margin-bottom: 28px; }
    .about-timeline-card { padding: 20px 22px; }
    .about-timeline-year { font-size: 20px; padding: 2px 14px; }
    .about-timeline-card h3 { font-size: 16px; }
    .about-timeline-desc { font-size: 13px; }
    .about-timeline-img-wrap .about-timeline-img { width: 140px; max-width: 45%; }
    .about-section-header h2 { font-size: 24px; }
    .about-section-desc { font-size: 13px; }
    .about-section-header { margin-bottom: 24px; }
    .about-section { padding: 30px 0 40px; }
    .about-section-block { margin-bottom: 24px; }
    .about-honor-group { padding: 22px 18px 26px; }
    .about-honor-group-title { font-size: 17px; }
    .about-cert-img { height: 160px; }
    .about-gallery-img { height: 180px; }
    .about-honor-img { height: 140px; }
    .about-cert-body { padding: 18px 18px 22px; }
    .about-cert-body h3 { font-size: 15px; }
    .about-generic-item { padding: 24px 22px; }
    .about-bread { padding: 10px 0; font-size: 12px; }
    .about-modal-content { max-width: 92vw; }
    .about-modal-content img { max-width: 92vw; max-height: 70vh; }
    .about-modal-close { top: 16px; right: 16px; font-size: 36px; }
    .about-modal-prev { left: 8px; font-size: 36px; }
    .about-modal-next { right: 8px; font-size: 36px; }
}
@media (max-width: 480px) {
    .about-banner { min-height: 150px; }
    .about-banner-inner h1 { font-size: 20px; letter-spacing: 1px; }
    .about-banner-inner p { font-size: 13px; }
    .about-stats { gap: 10px; padding: 0 12px 8px; }
    .about-stat-item { padding: 18px 12px 16px; }
    .about-stat-num { font-size: 24px; }
    .about-stat-label { font-size: 13px; }
    .about-stat-icon { width: 44px; height: 44px; margin-bottom: 12px; }
    .about-stat-icon i { font-size: 18px; }
    .about-culture-card { padding: 28px 18px 24px; }
    .about-culture-icon { width: 64px; height: 64px; }
    .about-culture-icon img { width: 34px; height: 34px; }
    .about-culture-card h3 { font-size: 17px; }
    .about-advantage-card { padding: 20px 18px; }
    .about-adv-text h3 { font-size: 15px; }
    .about-gallery-caption { padding: 12px 14px; font-size: 14px; }
    .about-timeline-card { padding: 16px 18px; }
    .about-timeline-year { font-size: 17px; }
    .about-honor-info { padding: 14px 14px 16px; }
    .about-honor-info h4 { font-size: 14px; }
    .about-section-header h2 { font-size: 20px; }
    .about-section-header h2::after { width: 44px; height: 3px; }
    .about-intro-header h2 { font-size: 20px; }
    .about-content-text { font-size: 14px; width: 100%; }
    .about-section { padding: 24px 0 36px; }
    .about-section-block { margin-bottom: 20px; }
    .about-section-header { margin-bottom: 20px; }
    .about-intro-text { padding: 20px 16px; }
    .about-timeline-list { padding-left: 20px; }
    .about-timeline-list::before { left: 8px; }
    .about-timeline-dot { left: -28px; width: 14px; height: 14px; }
}

@media (max-width: 400px) {
    .about-banner { min-height: 130px; }
    .about-banner-inner h1 { font-size: 18px; letter-spacing: 1px; }
    .about-banner-inner p { font-size: 12px; }
}

/* ===== 图片放大模态框 ===== */
.about-modal-overlay {
    display: none;
    position: fixed;
    z-index: 99999;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,.88);
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
.about-modal-overlay.active {
    display: flex;
}
.about-modal-content {
    max-width: 85vw;
    max-height: 85vh;
    position: relative;
}
.about-modal-content img {
    max-width: 85vw;
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,.6);
    display: block;
}
.about-modal-close {
    position: fixed;
    top: 30px;
    right: 40px;
    color: #fff;
    font-size: 44px;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    opacity: .6;
    transition: opacity .3s;
    z-index: 100000;
    width: 50px;
    height: 50px;
    text-align: center;
}
.about-modal-close:hover {
    opacity: 1;
}

/* ===== 多图导航按钮 ===== */
.about-modal-prev,
.about-modal-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 50px;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    opacity: .5;
    transition: opacity .3s, transform .3s;
    z-index: 100000;
    padding: 20px 15px;
    user-select: none;
}
.about-modal-prev { left: 30px; }
.about-modal-next { right: 30px; }
.about-modal-prev:hover,
.about-modal-next:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

/* ===== 图片计数器 ===== */
.about-modal-counter {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 14px;
    background: rgba(0,0,0,.5);
    padding: 6px 18px;
    border-radius: 20px;
    z-index: 100000;
    letter-spacing: 1px;
}

/* ===== 展会多图缩略图条 ===== */
.about-honor-thumbs {
    width: 100%;
    overflow-x: auto;
    padding: 8px 12px;
    background: #f4f6f9;
    border-top: 1px solid var(--ent-line);
    box-sizing: border-box;
}
.about-honor-thumbs::-webkit-scrollbar {
    height: 4px;
}
.about-honor-thumbs::-webkit-scrollbar-track {
    background: transparent;
}
.about-honor-thumbs::-webkit-scrollbar-thumb {
    background: #d0d5dd;
    border-radius: 2px;
}
.about-honor-thumbs-inner {
    display: flex;
    gap: 6px;
    width: fit-content;
    min-width: 0;
    margin: 0 auto;
}
.about-honor-thumb {
    width: 64px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all .2s ease;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
}
.about-honor-thumb:hover {
    border-color: var(--ent-primary);
    opacity: .85;
}
.about-honor-thumb.active {
    border-color: var(--ent-primary);
    box-shadow: 0 0 0 2px rgba(11,77,162,.15);
}

/* ===== 多图徽标 ===== */
.about-honor-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(231,76,60,.9);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    line-height: 1.6;
    z-index: 2;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(231,76,60,.3);
}