/* 主容器 – 最大宽度 1560px，高端留白 */
.about-wrapper {
    max-width: 1560px;
    width: 100%;
    background: #ffffff;
    border-radius: 2.8rem;
    box-shadow: 0 40px 80px -24px rgba(6, 182, 212, 0.10), 0 12px 32px -8px rgba(0, 0, 0, 0.02);
    padding: 4.5rem 4rem;
    transition: all 0.2s;
    margin: 80px auto;
}

/* ===== 排版 ===== */
h1, h2, h3, p {
    margin: 0 0 0.6rem 0;
    font-weight: 400;
}

h1 {
    font-size: clamp(2.8rem, 6.5vw, 4.6rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.08;
    color: #0a1424;
}

h2 {
    font-size: clamp(2rem, 4.2vw, 3rem);
    font-weight: 500;
    letter-spacing: -0.015em;
    color: #0a1424;
    margin-bottom: 0.8rem;
}

h3 {
    font-size: clamp(1.2rem, 2.4vw, 1.7rem);
    font-weight: 600;
    color: #0a1424;
    margin-bottom: 0.4rem;
}

.about-accent-color {
    color: #06b6d4;
}

/* 装饰分割线 */
.about-divider-line {
    width: 72px;
    height: 4px;
    background: #06b6d4;
    border-radius: 8px;
    margin: 0.5rem 0 1.8rem 0;
}

.about-divider-light {
    background: rgba(6, 182, 212, 0.2);
    width: 48px;
    height: 3px;
}

/* ===== HERO 区域【新增双栏布局】 ===== */
.about-hero-about {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4rem;
    margin-bottom: 4.2rem;
}

.about-hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about-hero-image-wrap {
    flex: 1;
    width: 100%;
}

.about-hero-img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 2rem;
    box-shadow: 0 24px 56px -16px rgba(6, 182, 212, 0.12);
    border: 1px solid rgba(6, 182, 212, 0.08);
    display: block;
}

.about-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(6, 182, 212, 0.06);
    padding: 0.3rem 1.2rem 0.3rem 0.8rem;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #06b6d4;
    width: fit-content;
    border: 1px solid rgba(6, 182, 212, 0.12);
    letter-spacing: 0.2px;
}

.about-hero-badge i {
    font-size: 0.75rem;
}

.about-hero-description {
    font-size: 1.2rem;
    color: #29364f;
    max-width: 860px;
    line-height: 1.75;
    font-weight: 350;
}

/* ===== 统计卡片 ===== */
.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.8rem;
    background: #f5faff;
    padding: 2.6rem 2.8rem;
    border-radius: 2.4rem;
    margin: 2.8rem 0 4.2rem 0;
    border: 1px solid rgba(6, 182, 212, 0.06);
}

.about-stat-item {
    text-align: center;
}

.about-stat-number {
    font-size: 2.8rem;
    font-weight: 600;
    color: #0a1424;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.about-stat-number .about-accent-color {
    font-size: 2.8rem;
}

.about-stat-label {
    font-size: 0.95rem;
    color: #3d4b68;
    font-weight: 400;
    margin-top: 0.2rem;
}

/* ===== 卡片网格 ===== */
.about-grid-two {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin: 3rem 0 3.2rem 0;
}

.about-grid-three {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.2rem;
    margin: 2.5rem 0 2rem 0;
}

.about-grid-four {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.8rem;
    margin: 2rem 0 2.5rem 0;
}

.about-card {
    background: #ffffff;
    border-radius: 2rem;
    padding: 2.4rem 2.2rem;
    box-shadow: 0 8px 28px -10px rgba(0, 20, 30, 0.04);
    border: 1px solid #eef4fe;
    transition: all 0.25s ease;
}

.about-card:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 20px 44px -14px rgba(6, 182, 212, 0.10);
    transform: translateY(-5px);
}

.about-card-icon {
    font-size: 2.4rem;
    color: #06b6d4;
    margin-bottom: 1rem;
    display: inline-block;
    background: rgba(6, 182, 212, 0.04);
    padding: 0.5rem;
    border-radius: 18px;
    width: 4rem;
    text-align: center;
}

.about-card p {
    color: #2d3d5a;
    font-weight: 350;
    font-size: 0.98rem;
    line-height: 1.7;
}

/* ===== 哲学区块 ===== */
.about-philosophy-block {
    background: #f8fbff;
    border-radius: 2.4rem;
    padding: 3.2rem 3.5rem;
    margin: 2.8rem 0 3.8rem 0;
    border-left: 7px solid #06b6d4;
    box-shadow: inset 0 2px 14px rgba(6, 182, 212, 0.02);
}

.about-philosophy-block p {
    font-size: 1.15rem;
    line-height: 1.85;
    color: #1b2840;
    max-width: 92%;
    font-weight: 380;
}

.about-philosophy-block .about-quote-source {
    display: block;
    margin-top: 1.2rem;
    font-weight: 500;
    color: #06b6d4;
    letter-spacing: 0.4px;
}

/* ===== 特色列表 ===== */
.about-feature-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem 2.5rem;
    margin: 1.8rem 0 2.2rem 0;
}

.about-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    font-size: 1rem;
    color: #1e2d48;
}

.about-feature-item i {
    color: #06b6d4;
    font-size: 1.2rem;
    margin-top: 0.2rem;
    min-width: 1.6rem;
}

/* ===== 文化卡片 ===== */
.about-culture-card {
    background: white;
    border-radius: 2rem;
    padding: 2.4rem 2rem;
    border: 1px solid #eaf1fd;
    transition: 0.2s;
}

.about-culture-card:hover {
    border-color: #06b6d4;
    box-shadow: 0 12px 30px -12px rgba(6, 182, 212, 0.08);
}

.about-culture-card i {
    font-size: 2rem;
    color: #06b6d4;
    margin-bottom: 0.8rem;
}

/* ===== 时间线 ===== */
.about-timeline-section {
    margin: 3.8rem 0 3rem 0;
}

.about-timeline-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1.8rem;
}

.about-timeline-item {
    background: #f9fcff;
    border-radius: 1.8rem;
    padding: 1.8rem 1.5rem;
    border: 1px solid #ecf3fd;
    transition: 0.2s;
}

.about-timeline-item:hover {
    border-color: #06b6d4;
    background: #ffffff;
}

.about-timeline-year {
    font-size: 1.8rem;
    font-weight: 600;
    color: #06b6d4;
    letter-spacing: -0.02em;
}

.about-timeline-item p {
    font-size: 0.95rem;
    color: #2b3d5a;
    margin-top: 0.2rem;
}

/* ===== 全球布局 ===== */
.about-global-section {
    background: #f5faff;
    border-radius: 2.4rem;
    padding: 2.8rem 3.2rem;
    margin: 3rem 0 3.5rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    border: 1px solid rgba(6, 182, 212, 0.08);
}

.about-global-text {
    max-width: 60%;
}

.about-global-text h3 {
    font-weight: 500;
}

.about-global-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem 1.2rem;
    margin-top: 0.8rem;
}

.about-global-tags span {
    background: white;
    padding: 0.2rem 1.4rem;
    border-radius: 40px;
    font-size: 0.9rem;
    border: 1px solid #dce6f5;
    color: #1f3150;
}

.about-global-icon {
    font-size: 3.2rem;
    color: #06b6d4;
    opacity: 0.7;
}

/* ===== 荣誉墙 ===== */
.about-awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.8rem;
    margin: 2rem 0 1.5rem 0;
}

.about-award-item {
    background: #fafdff;
    border-radius: 1.8rem;
    padding: 1.5rem 1rem;
    text-align: center;
    border: 1px solid #ecf3fd;
}

.about-award-item i {
    font-size: 2.2rem;
    color: #06b6d4;
    margin-bottom: 0.3rem;
}

.about-award-item span {
    display: block;
    font-weight: 500;
    font-size: 0.95rem;
    color: #10213a;
}

/* ===== 服务卡片 ===== */
.about-service-card {
    background: #ffffff;
    border-radius: 2rem;
    padding: 2rem 1.8rem;
    border: 1px solid #eef4fe;
    transition: 0.25s ease;
    text-align: center;
}

.about-service-card:hover {
    border-color: #06b6d4;
    transform: translateY(-6px);
    box-shadow: 0 18px 36px -12px rgba(6, 182, 212, 0.08);
}

.about-service-card i {
    font-size: 2.6rem;
    color: #06b6d4;
    margin-bottom: 0.8rem;
}

.about-service-card h3 {
    font-weight: 600;
    font-size: 1.1rem;
    color: #0a1424;
    margin-bottom: 0.3rem;
}

.about-service-card p {
    font-size: 0.95rem;
    color: #2f405e;
}

/* ===== 为何选择我们 ===== */
.about-reason-card {
    background: #f9fcff;
    border-radius: 1.8rem;
    padding: 2rem 1.8rem;
    border: 1px solid #eaf2fc;
    transition: 0.2s;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.about-reason-card:hover {
    border-color: #06b6d4;
    background: #ffffff;
}

.about-reason-card .about-reason-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: rgba(6, 182, 212, 0.15);
    line-height: 1;
    margin-bottom: 0.2rem;
}

.about-reason-card h3 {
    font-weight: 600;
    font-size: 1.1rem;
    color: #0a1424;
}

.about-reason-card p {
    font-size: 0.95rem;
    color: #2f405e;
    margin-top: 0.2rem;
}

/* ===== 灵活协作区块（使用类） ===== */
.about-flexible-collab {
    background: #f9fcff;
    border-radius: 2rem;
    padding: 2.8rem 3rem;
    margin: 3.5rem 0 1.5rem 0;
    border: 1px solid #eaf2fc;
}

.about-flexible-collab p {
    color: #1b2a44;
    line-height: 1.8;
    font-weight: 350;
    max-width: 90%;
}

.about-flexible-collab .about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 2rem;
    margin-top: 1.6rem;
}

.about-flexible-collab .about-tags span {
    background: white;
    padding: 0.2rem 1.4rem;
    border-radius: 40px;
    border: 1px solid #06b6d4;
    color: #06b6d4;
    font-size: 0.9rem;
}

/* ===== 底部信任标识（使用类） ===== */
.about-trust-footer {
    margin-top: 3.2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #e7eefa;
    padding-top: 2rem;
    gap: 1.2rem;
}

.about-trust-footer .about-trust-icons {
    display: flex;
    gap: 1.8rem;
    flex-wrap: wrap;
}

.about-trust-footer .about-trust-icons span {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #1d2e4a;
}

.about-trust-footer .about-copy {
    font-size: 0.9rem;
    color: #435575;
    letter-spacing: 0.3px;
}

/* 工具类 */
.about-inline-flex {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.about-dot-pattern {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #06b6d4;
    border-radius: 50%;
    margin-right: 4px;
    opacity: 0.5;
}

.about-mt-1 {
    margin-top: 1rem;
}

.about-mb-1 {
    margin-bottom: 1rem;
}

.about-fw-500 {
    font-weight: 500;
}

/* ===== 无障碍 ===== */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid #06b6d4;
    outline-offset: 3px;
}

.about-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ==============================================================
   移动端优化 —— 保持高端质感
   ============================================================== */

/* 平板及以下 */
@media screen and (max-width: 1024px) {
    .about-wrapper {
        padding: 3.5rem 2.5rem;
        border-radius: 2.2rem;
    }

    /* Hero 平板上下堆叠 */
    .about-hero-about {
        flex-direction: column;
        gap: 2.5rem;
    }

    .about-timeline-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid-four {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-global-text {
        max-width: 100%;
    }

    .about-global-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.2rem;
    }
}

/* 手机端 (≤768px) —— 精致调整，保留高级感 */
@media screen and (max-width: 768px) {
    .about-wrapper {
        padding: 2rem 1.2rem;
        border-radius: 1.8rem;
        box-shadow: 0 20px 50px -16px rgba(6, 182, 212, 0.06);
    }

    /* Hero 手机堆叠缩小间距 */
    .about-hero-about {
        flex-direction: column;
        gap: 1.8rem;
        margin-bottom: 2.8rem;
    }

    .about-hero-img {
        border-radius: 1.4rem;
    }

    /* 标题比例更精致 */
    h1 {
        font-size: 2.4rem;
        letter-spacing: -0.02em;
    }

    h2 {
        font-size: 1.8rem;
        margin-bottom: 0.4rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    /* HERO 优化 */
    .about-hero-description {
        font-size: 1rem;
        max-width: 100%;
        color: #2a3852;
    }

    .about-hero-badge {
        font-size: 0.8rem;
        padding: 0.2rem 1rem 0.2rem 0.6rem;
    }

    /* 统计卡片 – 紧凑且保留质感 */
    .about-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        padding: 1.8rem 1.2rem;
        border-radius: 1.8rem;
        margin: 2rem 0 2.8rem 0;
        background: #f5faff;
    }

    .about-stat-number {
        font-size: 2.2rem;
    }

    .about-stat-number .about-accent-color {
        font-size: 2.2rem;
    }

    .about-stat-label {
        font-size: 0.85rem;
    }

    /* 所有卡片网格调整为单列，保留精致内边距 */
    .about-grid-two,
    .about-grid-three,
    .about-grid-four {
        grid-template-columns: 1fr;
        gap: 1.2rem;
        margin: 1.8rem 0 2rem 0;
    }

    .about-card {
        padding: 1.8rem 1.5rem;
        border-radius: 1.6rem;
        box-shadow: 0 4px 16px -6px rgba(0, 20, 30, 0.02);
    }

    .about-card-icon {
        font-size: 2rem;
        width: 3.4rem;
        padding: 0.4rem;
    }

    .about-card p {
        font-size: 0.95rem;
    }

    /* 哲学区块 – 更柔和 */
    .about-philosophy-block {
        padding: 1.8rem 1.5rem;
        border-radius: 1.8rem;
        margin: 2rem 0 2.5rem 0;
        border-left-width: 5px;
    }

    .about-philosophy-block p {
        font-size: 1rem;
        max-width: 100%;
        line-height: 1.75;
    }

    .about-philosophy-block .about-quote-source {
        font-size: 0.95rem;
    }

    /* 特色列表 */
    .about-feature-list {
        grid-template-columns: 1fr;
        gap: 0.6rem 1rem;
        margin: 1.2rem 0 1.8rem 0;
    }

    .about-feature-item {
        font-size: 0.95rem;
        gap: 0.6rem;
    }

    /* 文化卡片 */
    .about-culture-card {
        padding: 1.6rem 1.4rem;
        border-radius: 1.6rem;
    }

    .about-culture-card i {
        font-size: 1.8rem;
    }

    /* 时间线 – 两列 */
    .about-timeline-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
        margin-top: 1.2rem;
    }

    .about-timeline-item {
        padding: 1.2rem 1rem;
        border-radius: 1.4rem;
    }

    .about-timeline-year {
        font-size: 1.4rem;
    }

    .about-timeline-item p {
        font-size: 0.85rem;
    }

    /* 全球布局 */
    .about-global-section {
        padding: 1.8rem 1.5rem;
        border-radius: 1.8rem;
        margin: 2rem 0 2.5rem 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .about-global-text {
        max-width: 100%;
    }

    .about-global-tags span {
        font-size: 0.8rem;
        padding: 0.15rem 1rem;
    }

    .about-global-icon {
        font-size: 2.4rem;
        align-self: flex-end;
    }

    /* 荣誉 */
    .about-awards-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
        margin: 1.5rem 0 1rem 0;
    }

    .about-award-item {
        padding: 1rem 0.8rem;
        border-radius: 1.4rem;
    }

    .about-award-item i {
        font-size: 1.8rem;
    }

    .about-award-item span {
        font-size: 0.85rem;
    }

    /* 服务卡片 */
    .about-service-card {
        padding: 1.5rem 1.2rem;
        border-radius: 1.6rem;
    }

    .about-service-card i {
        font-size: 2.2rem;
    }

    .about-service-card h3 {
        font-size: 1rem;
    }

    .about-service-card p {
        font-size: 0.9rem;
    }

    /* 为何选择我们 */
    .about-reason-card {
        padding: 1.5rem 1.2rem;
        border-radius: 1.4rem;
    }

    .about-reason-card .about-reason-number {
        font-size: 1.8rem;
    }

    .about-reason-card h3 {
        font-size: 1rem;
    }

    .about-reason-card p {
        font-size: 0.9rem;
    }

    /* 灵活协作区块 */
    .about-flexible-collab {
        padding: 1.8rem 1.5rem;
        border-radius: 1.6rem;
        margin: 2rem 0 1rem 0;
    }

    .about-flexible-collab p {
        max-width: 100%;
        font-size: 0.95rem;
    }

    .about-flexible-collab .about-tags {
        gap: 0.6rem 1.2rem;
        margin-top: 1.2rem;
    }

    .about-flexible-collab .about-tags span {
        font-size: 0.8rem;
        padding: 0.15rem 1rem;
    }

    /* 底部信任标识 */
    .about-trust-footer {
        margin-top: 2rem;
        padding-top: 1.5rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }

    .about-trust-footer .about-trust-icons {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .about-trust-footer .about-trust-icons span {
        font-size: 0.85rem;
    }

    .about-trust-footer .about-copy {
        font-size: 0.8rem;
    }
}

/* 小手机 (≤420px) – 进一步优化间距 */
@media screen and (max-width: 420px) {
    .about-wrapper {
        padding: 1.5rem 0.8rem;
        border-radius: 1.4rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .about-stats-grid {
        gap: 0.6rem;
        padding: 1.2rem 0.6rem;
    }

    .about-stat-number {
        font-size: 1.8rem;
    }

    .about-stat-number .about-accent-color {
        font-size: 1.8rem;
    }

    .about-stat-label {
        font-size: 0.75rem;
    }

    .about-card {
        padding: 1.2rem 1rem;
    }

    .about-philosophy-block {
        padding: 1.2rem 1rem;
    }

    .about-timeline-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .about-timeline-item {
        padding: 0.8rem 0.6rem;
    }

    .about-timeline-year {
        font-size: 1.2rem;
    }

    .about-timeline-item p {
        font-size: 0.75rem;
    }

    .about-global-tags span {
        font-size: 0.7rem;
        padding: 0.1rem 0.8rem;
    }

    .about-awards-grid {
        gap: 0.5rem;
    }

    .about-award-item {
        padding: 0.8rem 0.4rem;
    }

    .about-award-item i {
        font-size: 1.4rem;
    }

    .about-award-item span {
        font-size: 0.75rem;
    }

    .about-service-card {
        padding: 1rem 0.8rem;
    }

    .about-reason-card {
        padding: 1rem 0.8rem;
    }

    .about-flexible-collab {
        padding: 1.2rem 1rem;
    }

    .about-flexible-collab .about-tags span {
        font-size: 0.7rem;
        padding: 0.1rem 0.8rem;
    }
}