/* ================================================
   关于我们页面专用样式
   ================================================ */

.page-about { background: var(--color-white); }

/* ===== Header ===== */
.page-about .page-header {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-light));
    color: #fff;
    padding: 72px 0;
    text-align: center;
}
.page-about .page-header h1 { color: #fff; font-size: 40px; margin-bottom: 12px; }
.page-about .page-subtitle { opacity: .9; font-size: 17px; margin: 0; }

/* ===== Section ===== */
.about-section { padding: 72px 0; }
.about-section-alt { background: var(--color-alt); }

/* ===== about-intro：image + text 两列 ===== */
.about-intro {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 56px;
    align-items: center;
}

.about-image {
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,.12);
}
.about-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.about-text h2 {
    font-size: 30px;
    margin-bottom: 20px;
    color: var(--color-primary-dark);
    line-height: 1.3;
}
.about-text p {
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.9;
    font-size: 15px;
}
.about-text strong { color: var(--color-primary); }

/* ===== about-stats：独立全宽，5 列横排 ===== */
.about-stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    margin-top: 56px;
    background: var(--color-alt);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid #e2e6ea;
}
.about-stats .stat-item {
    text-align: center;
    padding: 32px 16px;
    border-right: 1px solid #d1d9e2;
}
.about-stats .stat-item:last-child { border-right: none; }
.about-stats .stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -1px;
}
.about-stats .stat-label {
    font-size: 13px;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ===== 团队 ===== */
.about-section h2 {
    font-size: 28px;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 12px;
}
.section-lead {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 40px;
    font-size: 15px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.team-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: all .3s ease;
}
.team-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(26,77,143,.12);
    border-color: var(--color-primary);
}
.team-icon {
    font-size: 40px;
    margin-bottom: 14px;
}
.team-card h4 {
    font-size: 16px;
    color: var(--color-primary);
    margin-bottom: 8px;
    font-weight: 700;
}
.team-card p {
    font-size: 14px;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.7;
}

/* ===== 承诺 ===== */
.about-section-promise {
    background: linear-gradient(135deg, #f8faff, #eef4fb);
}
.promise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.promise-card {
    background: #fff;
    border-radius: 12px;
    padding: 36px 28px;
    text-align: center;
    border: 1px solid #e2e6ea;
    transition: all .3s ease;
}
.promise-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(26,77,143,.1);
}
.promise-icon {
    font-size: 44px;
    margin-bottom: 14px;
}
.promise-card h4 {
    font-size: 17px;
    margin-bottom: 10px;
    color: var(--color-primary-dark);
    font-weight: 700;
}
.promise-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .about-intro { grid-template-columns: 340px 1fr; gap: 40px; }
    .about-stats .stat-num { font-size: 34px; }
}

@media (max-width: 768px) {
    .about-section { padding: 56px 0; }
    .about-intro { grid-template-columns: 1fr; gap: 32px; }
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 40px;
    }
    .about-stats .stat-item { border-right: none; border-bottom: 1px solid #d1d9e2; }
    .about-stats .stat-item:nth-child(odd) { border-right: 1px solid #d1d9e2; }
    .about-stats .stat-item:nth-last-child(-n+2) { border-bottom: none; }
    .team-grid { grid-template-columns: 1fr 1fr; }
    .promise-grid { grid-template-columns: 1fr; }
    .page-about .page-header { padding: 56px 0; }
    .page-about .page-header h1 { font-size: 32px; }
}

@media (max-width: 480px) {
    .about-stats { grid-template-columns: 1fr 1fr; }
    .about-stats .stat-num { font-size: 28px; }
    .team-grid { grid-template-columns: 1fr; }
}

/* ===== 2026-10-21 C批：官方往来与行业积淀 ===== */
.cred-feature {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 36px;
    align-items: center;
    margin: 44px 0 52px;
}
.cred-feature-img { margin: 0; }
.cred-feature-img img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: block;
}
.cred-feature-img figcaption {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-top: 10px;
    padding-left: 12px;
    border-left: 3px solid var(--color-secondary);
}
.cred-feature-text h3 {
    font-size: 22px;
    color: var(--color-primary-dark);
    margin: 0 0 16px;
    line-height: 1.4;
}
.cred-feature-text p {
    font-size: 15px;
    line-height: 1.9;
    color: #445566;
    margin: 0 0 14px;
}

/* ===== 2026-10-21 C批：纵向历史时间轴 ===== */
.hist-timeline {
    list-style: none;
    margin: 48px 0 32px;
    padding: 0;
    position: relative;
}
.hist-timeline::before {
    content: "";
    position: absolute;
    left: 55px;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background: linear-gradient(#cdd9e8, #9db4cf, #cdd9e8);
}
.hist-node {
    position: relative;
    padding: 0 0 32px 120px;
}
.hist-node:last-child { padding-bottom: 0; }
.hist-dot {
    position: absolute;
    left: 0;
    top: 0;
    width: 112px;
    display: flex;
    justify-content: center;
}
.hist-dot span {
    z-index: 1;
    width: 74px;
    height: 74px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--color-primary);
    color: var(--color-primary-dark);
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1.15;
    box-shadow: 0 2px 8px rgba(26,77,143,.15);
}
.hist-card {
    background: #fff;
    border: 1px solid #e2e6ea;
    border-radius: 12px;
    padding: 24px 28px 26px;
    box-shadow: 0 1px 4px rgba(26,77,143,.05);
}
.hist-card h4 { font-size: 17px; color: var(--color-primary-dark); margin: 0 0 10px; line-height: 1.5; }
.hist-card p { font-size: 14.5px; line-height: 1.85; color: #445566; margin: 0 0 14px; }
.hist-card p:last-child { margin-bottom: 0; }

.hist-node--text .hist-card {
    background: linear-gradient(160deg, #1a4d8f, #2a6bb8);
    border: none;
}
.hist-node--text .hist-card h4 { color: #fff; }
.hist-node--text .hist-card p { color: rgba(255,255,255,.88); margin: 0; }
.hist-node--text .hist-dot span { background: var(--color-primary); color: #fff; }

.hist-node--award .hist-card {
    border: 2px solid #d9a441;
    background: linear-gradient(180deg, #fffdf6, #fff);
    box-shadow: 0 6px 24px rgba(217,164,65,.18);
}
.hist-node--award .hist-dot span {
    background: linear-gradient(160deg, #e8b94f, #d99a2b);
    border-color: #c88a1e;
    color: #fff;
}

.hist-photo { margin: 14px 0 0; }
.hist-photo img {
    width: 100%;
    max-width: 520px;
    border-radius: 10px;
    display: block;
    box-shadow: 0 2px 10px rgba(0,0,0,.1);
}
.hist-photo figcaption {
    font-size: 12.5px;
    color: var(--color-text-light);
    margin-top: 8px;
    line-height: 1.6;
    max-width: 520px;
}
.hist-photo-pair {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 18px;
    align-items: start;
    margin-top: 14px;
}
.hist-photo-pair .hist-photo { margin: 0; }
.hist-photo-pair .hist-photo img { max-width: 100%; }
.hist-photo-pair .hist-photo:last-child { justify-self: center; width: 100%; max-width: 320px; }
.hist-photo-pair .hist-photo:last-child img { max-width: 100%; }

/* 折叠相册 */
.hist-more {
    margin: 4px 0 28px;
    border: 1px dashed #b9c8da;
    border-radius: 10px;
    background: #f8fafd;
}
.hist-more summary {
    padding: 16px 22px;
    cursor: pointer;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--color-primary-dark);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}
.hist-more summary::-webkit-details-marker { display: none; }
.hist-more summary::before { content: "▸"; transition: transform .2s ease; font-size: 13px; }
.hist-more[open] summary::before { transform: rotate(90deg); }
.hist-more-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 2px 22px 24px;
}
.hist-more-grid .hist-photo { margin: 0; }
.hist-more-grid .hist-photo img {
    max-width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}
.cred-disclaimer {
    margin: 28px 0 0;
    padding: 14px 18px;
    background: #fdf6e8;
    border: 1px solid #ecd9a8;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.75;
    color: #8a6d2b;
}

/* ===== 2026-10-21 C批：上海实景办公室 ===== */
.about-office { background: #fff; }
.office-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.office-card {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background: #fff;
}
.office-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
    transition: transform .4s ease;
}
.office-card:hover img { transform: scale(1.04); }
.office-card figcaption {
    padding: 12px 16px;
    font-size: 14px;
    color: #445566;
    text-align: center;
}

/* ===== 2026-10-21 C批：企业信息公示 ===== */
.entity-disclosure {
    margin-top: 56px;
    background: #fff;
    border: 1px solid #d8e2ee;
    border-top: 4px solid var(--color-primary);
    border-radius: 12px;
    padding: 32px 36px;
}
.entity-disclosure h3 {
    font-size: 19px;
    color: var(--color-primary-dark);
    margin: 0 0 18px;
}
.entity-table { width: 100%; border-collapse: collapse; }
.entity-table th,
.entity-table td {
    text-align: left;
    padding: 10px 12px;
    font-size: 14px;
    line-height: 1.7;
    border-bottom: 1px dashed #e2e6ea;
}
.entity-table th {
    width: 96px;
    color: var(--color-text-light);
    font-weight: 400;
    white-space: nowrap;
}
.entity-table td { color: #1a2e4a; font-weight: 500; }
.entity-table tr:last-child th,
.entity-table tr:last-child td { border-bottom: none; }
.entity-note {
    margin: 16px 0 0;
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.7;
}

@media (max-width: 1024px) {
    .cred-feature { grid-template-columns: 1fr; gap: 24px; }
    .hist-more-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .office-gallery { grid-template-columns: 1fr; }
    .entity-disclosure { padding: 24px 20px; }
    .hist-timeline::before { left: 31px; }
    .hist-node { padding: 0 0 26px; }
    .hist-dot {
        position: static;
        width: auto;
        justify-content: flex-start;
        margin-bottom: 12px;
    }
    .hist-dot span { width: 62px; height: 62px; font-size: 14px; }
    .hist-photo-pair { grid-template-columns: 1fr; }
    .hist-photo-pair .hist-photo:last-child { max-width: 280px; }
    .hist-more-grid { grid-template-columns: 1fr; padding: 2px 16px 20px; }
    .hist-more summary { padding: 14px 16px; }
    .hist-card { padding: 20px 18px 22px; }
}

/* ===== 2026-10-21 C批：营业执照缩略图 + 纯 CSS 灯箱 ===== */
.license-block {
    margin: 24px auto 0;
    max-width: 520px;
    text-align: center;
}
.license-thumb {
    position: relative;
    display: block;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #d8e2ee;
    box-shadow: 0 2px 12px rgba(26,77,143,.1);
    line-height: 0;
}
.license-thumb img { display: block; width: 100%; }
.license-zoom {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    background: rgba(26,77,143,.85);
    color: #fff;
    font-size: 13px;
    line-height: 1.6;
    padding: 8px 0;
    opacity: 0;
    transition: opacity .25s ease;
}
.license-thumb:hover .license-zoom,
.license-thumb:focus .license-zoom { opacity: 1; }
.license-block figcaption {
    font-size: 12.5px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-top: 10px;
}
.license-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,.88);
    padding: 4vh 5vw;
    align-items: center;
    justify-content: center;
}
.license-lightbox img {
    max-width: 100%;
    max-height: 92vh;
    border-radius: 6px;
    box-shadow: 0 12px 60px rgba(0,0,0,.6);
}
.license-lightbox:target { display: flex; }
@media (max-width: 768px) {
    .license-zoom { opacity: 1; }
}