/* =========================================
   About Page
   仅控制 about 页面内容
   导航统一交给 common.css
========================================= */

* {
    box-sizing: border-box;
}

body {
    background: #f3f3f3;
    color: #2f2f2f;
    margin: 0;
    overflow-x: hidden;
}

/* 页面整体 */
.about-page {
    width: 100%;
    padding-top: 82px;
    padding-bottom: 100px;
}

.about-inner {
    width: 80%;
    max-width: 1100px;
    margin: 0 auto;
}

/* 段落基础 */
.about-section {
    width: 100%;
}

/* 第一段、第三段：双栏 */
.about-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 88px;
    align-items: start;
}

/* 第二段：左侧单栏 */
.about-single {
    width: 64%;
    max-width: 800px;
    color: #2b2b2b;
}

/* 分割线 */
.about-divider {
    width: 95%;
    margin: 48px auto 40px auto;
    border: none;
    border-top: 1px solid rgba(0, 0, 0, 0.28);
}

/* 正文文字基础 */
.about-text {
    font-family: "marist", "Noto Serif SC", "Source Han Serif SC", serif;
    font-size: 17px;
    line-height: 1.22;
    color: #2b2b2b;
    text-align: left;
}

.about-text p {
    margin: 0 0 14px 0;
}

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

/* 英文栏 */
.about-text.en {
    font-family: "marist", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    font-size: 17px;
    line-height: 1.18;
    font-weight: 400;
    letter-spacing: -0.01em;
    text-align: justify;
    text-justify: inter-word;
    text-align-last: left;
    hyphens: auto;
    word-break: normal;
    overflow-wrap: break-word;
}

/* 中文栏 */
.about-text.zh {
    font-family: "marist", "STSong", "Noto Serif SC", "Source Han Serif SC", "PMingLiU", serif;
    font-size: 17px;
    line-height: 1.42;
    font-weight: 400;
    letter-spacing: 0;
    text-align: justify;
    text-justify: inter-ideograph;
    text-align-last: left;
    word-break: normal;
    overflow-wrap: break-word;
}

/* 第二段人物块之间距离 */
.bio-block + .bio-block {
    margin-top: 40px;
}

/* 小标题 */
.about-subtitle {
    margin: 0 0 12px 0;
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: #2b2b2b;
    letter-spacing: 0.06em;
}

/* 超宽屏 */
@media (min-width: 1600px) {
    .about-text {
        font-size: 18px;
    }

    .about-text.zh {
        font-size: 17px;
    }
}

/* 平板 */
@media (max-width: 1100px) {
    .about-page {
        padding-top: 90px;
        padding-bottom: 78px;
    }

    .about-two-col {
        grid-template-columns: 1fr;
        row-gap: 32px;
    }

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

    .about-divider {
        width: 95%;
        margin: 40px auto 30px auto;
    }

    .about-text {
        font-size: 16px;
        line-height: 1.42;
    }

    .about-text.en {
        line-height: 1.36;
    }

    .about-text.zh {
        font-size: 15px;
        line-height: 1.5;
    }

    .about-subtitle {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .bio-block + .bio-block {
        margin-top: 32px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .about-page {
        padding-top: 82px;
        padding-bottom: 60px;
    }

    .about-inner {
        width: 92%;
    }

    .about-two-col {
        row-gap: 24px;
    }

    .about-divider {
        width: 95%;
        margin: 28px auto 22px auto;
    }

    .about-text {
        font-size: 15px;
        line-height: 1.5;
    }

    .about-text.en {
        line-height: 1.44;
    }

    .about-text.zh {
        font-size: 14px;
        line-height: 1.58;
    }

    .about-subtitle {
        font-size: 13px;
        margin-bottom: 8px;
    }

    .bio-block + .bio-block {
        margin-top: 24px;
    }
}