/* 关于我们页 — 通栏 Hero：左文右图、斜切分割、天空渐变、底部羽化 */

.about-page {
    background: #f5f7fa;
}

.about-hero {
    position: relative;
    min-height: clamp(380px, 52vw, 520px);
    overflow: hidden;
    background: #fff;
}

/*
 * 右侧通栏图区：左缘为一条直斜线（单坡），与左侧白底衔接，无锯齿折点
 * 四点：顶左(坡顶) → 右上 → 右下 → 左下，闭合后左缘自动为直线
 */
.about-hero__curve-clip {
    clip-path: polygon(
        13% 0%,
        100% 0%,
        100% 100%,
        0% 100%
    );
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.about-hero__bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 42%;
    z-index: 0;
    background-color: #1a3a5c;
    background-position: 68% center;
    background-size: cover;
    background-repeat: no-repeat;
}

.about-hero__overlay {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 42%;
    z-index: 1;
    pointer-events: none;
    /* 天空冷色加蓝、中下部压暗保证白字可读、底部羽化接入浅灰版心 */
    background: linear-gradient(
            180deg,
            rgba(35, 100, 175, 0.5) 0%,
            rgba(30, 85, 150, 0.18) 32%,
            transparent 58%
        ),
        linear-gradient(
            118deg,
            rgba(255, 255, 255, 0.08) 0%,
            rgba(18, 45, 78, 0.32) 46%,
            rgba(10, 28, 52, 0.48) 100%
        ),
        linear-gradient(
            to top,
            #f5f7fa 0%,
            rgba(245, 247, 250, 0.92) 14%,
            rgba(245, 247, 250, 0.35) 38%,
            transparent 68%
        );
}

.about-hero__grid.container {
    position: relative;
    z-index: 2;
    /* 与下方 .about-stats / .about-body 等同款 Bootstrap .container 宽度 */
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    align-items: stretch;
    min-height: clamp(380px, 52vw, 520px);
}

.about-hero__panel {
    position: relative;
    z-index: 2;
    min-width: 0;
    max-width: 100%;
    overflow-x: hidden;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
    padding: clamp(36px, 6vw, 72px) clamp(16px, 3vw, 36px) clamp(36px, 6vw, 72px) 0;
    box-shadow: 8px 0 32px rgba(15, 35, 65, 0.04);
}

/* 主标语、图标移至左侧白底区（与设计稿一致：文案集中左栏） */
.about-hero__panel-slogan {
    margin-top: clamp(22px, 3vw, 34px);
    padding-top: clamp(20px, 2.5vw, 28px);
    border-top: 1px solid rgba(0, 0, 0, 0.07);
}

.about-hero__icon-wrap--panel {
    margin: 0 0 16px;
}

.about-hero__slogan-cn--panel {
    margin: 0 0 10px;
    font-size: clamp(20px, 2.5vw, 28px);
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.45;
    color: var(--primary-color);
    text-shadow: none;
    max-width: 100%;
}

.about-hero__slogan-en--panel {
    margin: 0;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.06em;
    line-height: 1.65;
    color: #666;
    text-shadow: none;
    max-width: 100%;
}

.about-hero__visual {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0 clamp(12px, 2vw, 24px) clamp(20px, 3vw, 32px);
    min-height: 100%;
}

.about-hero__title {
    margin: 0 0 8px;
    font-size: clamp(34px, 4.2vw, 46px);
    font-weight: 700;
    color: #111;
    line-height: 1.22;
    letter-spacing: 0.03em;
    max-width: 100%;
}

.about-hero__en {
    margin: 0 0 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: #9a9a9a;
    max-width: 100%;
}

.about-hero__rule {
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    margin-bottom: clamp(18px, 2.5vw, 26px);
}

.about-hero__lead {
    font-size: 15px;
    line-height: 1.9;
    color: #333;
    min-width: 0;
    max-width: 78%;
    box-sizing: border-box;
    white-space: normal;
    overflow: visible;
    overflow-wrap: break-word;
    word-break: break-word;
}

.about-hero__lead p {
    margin: 0 0 14px;
    max-width: 100%;
    white-space: normal;
    overflow: visible;
}

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

.about-hero__lead-muted {
    color: #666;
}

/* 列表页通栏头图：红小字栏目名（对齐客户案例参考稿） */
.about-hero__kicker {
    margin: 0 0 10px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--primary-color);
    text-transform: none;
}

.about-hero__sub-cn {
    margin: 0 0 12px;
    max-width: 90%;
    font-size: 15px;
    line-height: 1.75;
    color: #666;
}

.case-archive-page .about-hero__title {
    margin-bottom: 10px;
}

.about-hero__tagline-en {
    margin: 0 0 16px;
    max-width: 90%;
    font-size: 13px;
    line-height: 1.65;
    font-weight: 400;
    letter-spacing: 0.04em;
    text-transform: none;
    color: #888;
}

/* Hero 下方三列卖点（新闻 / 案例列表头图通用） */
.about-hero__feature-row {
    margin-top: clamp(20px, 3vw, 28px);
    display: grid;

    gap: clamp(8px, 2vw, 12px);
    max-width: 100%;
}

.about-hero__feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-width: 0;
}

.about-hero__feature-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 14px rgba(229, 41, 30, 0.35);
}

.about-hero__feature-icon .fa {
    font-size: 18px;
    color: #fff;
}

.about-hero__feature-text strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: #111;
    margin-bottom: 4px;
    line-height: 1.35;
}

.about-hero__feature-text span {
    display: block;
    font-size: 12px;
    line-height: 1.55;
    color: #64748b;
}

.about-hero__icon-wrap {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.about-hero__icon-wrap .fa {
    font-size: 24px;
    color: var(--primary-color);
}

.about-hero__dots {
    position: absolute;
    bottom: clamp(18px, 3vw, 28px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.about-hero__dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35);
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.about-hero__dots span.is-active {
    background: var(--primary-color);
    box-shadow: 0 2px 8px rgba(229, 41, 30, 0.45);
    transform: scale(1.15);
}

.about-hero__bottom {
    position: relative;
    z-index: 4;
}

/* 关于我们 Hero 底部子栏目导航：未选 / 悬停 / 当前 文案统一纯白 */
.about-hero__bottom .neinav .neinav-wrapper li a,
.about-hero__bottom .neinav .neinav-wrapper li.active a,
.about-hero__bottom .neinav .neinav-wrapper li:hover a {
    color: #fff;
}

.about-stats {
    padding: clamp(28px, 4vw, 44px) 0 clamp(12px, 2vw, 20px);
    background: #f5f7fa;
}

.about-stats__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 22px);
}

.about-stats__item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 14px;
    padding: clamp(18px, 2.5vw, 26px) clamp(16px, 2vw, 22px);
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 4px 18px rgba(15, 35, 65, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.about-stats__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    color: var(--primary-color);
    font-size: 22px;
    background: #fff;
}

.about-stats__text {
    min-width: 0;
}

.about-stats__num {
    margin: 0 0 6px;
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.15;
}

.about-stats__unit {
    font-size: 0.72em;
    font-weight: 700;
}

.about-stats__plus {
    font-weight: 700;
}

.about-stats__label {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: #111;
}

.about-stats__desc {
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    color: #888;
}

.about-body {
    padding: clamp(28px, 4vw, 52px) 0 clamp(48px, 8vw, 88px);
    background: #f5f7fa;
}

.about-body__head {
    text-align: center;
    margin-bottom: clamp(22px, 3vw, 34px);
}

.about-body__title {
    margin: 0 0 14px;
    font-size: clamp(22px, 2.8vw, 28px);
    font-weight: 700;
    color: #111;
}

.about-body__rule {
    width: 40px;
    height: 3px;
    margin: 0 auto;
    background: var(--primary-color);
    border-radius: 2px;
}

.about-body__card {
    margin: 0 auto;
    padding: clamp(26px, 4vw, 40px) clamp(22px, 4vw, 44px);
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(15, 35, 65, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.about-body__inner {
    font-size: 15px;
    line-height: 1.9;
    color: #444;
}

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

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

.about-body__inner img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

@media (max-width: 991px) {
    .about-hero__bg,
    .about-hero__overlay {
        left: 0;
        opacity: 0.96;
    }

    .about-hero__curve-clip {
        clip-path: none;
    }

    .about-hero__overlay {
        background: linear-gradient(
                180deg,
                rgba(35, 100, 175, 0.42) 0%,
                transparent 50%
            ),
            rgba(15, 35, 65, 0.5);
    }

    .about-hero__panel {
        box-shadow: none;
    }

    .about-hero__grid.container {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .about-hero__panel {
        padding: 36px 0 24px;
        background: #fff;
    }

    .about-hero__feature-row {
        grid-template-columns: 1fr;
    }

    .about-hero__visual {
        min-height: 260px;
        padding-bottom: 52px;
    }

    .about-stats__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575px) {
    .about-stats__grid {
        grid-template-columns: 1fr;
    }

    .about-stats__item {
        gap: 12px;
    }
}

#backTop span.ft-mail i {
    font-size: 17px;
    color: #e5291e;
}

#backTop span:hover.ft-mail small.telTop {
    visibility: visible;
    opacity: 1;
    right: 100%;
}