.page-about {
    font-family: Arial, sans-serif;
    color: var(--text-main, #333333); /* Use default if not set, assuming light body bg */
    line-height: 1.6;
    background-color: var(--bg-secondary, #F5F7FA); /* Use a light background for main sections */
}

/* Hero Section */
.page-about__hero-section {
    position: relative;
    overflow: hidden;
    padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
    padding-bottom: 40px;
    background-color: var(--bg-primary, #ffffff);
    text-align: center;
}

.page-about__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-about__hero-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.page-about__hero-content {
    max-width: 900px;
    margin: 40px auto 0 auto;
    padding: 0 20px;
    text-align: center;
}

.page-about__main-title {
    font-size: clamp(2.2rem, 4vw, 3rem); /* Responsive font size */
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color, #E53935);
    margin-bottom: 20px;
}

.page-about__description {
    font-size: 1.1rem;
    color: var(--text-main, #333333);
    margin-bottom: 30px;
}

.page-about__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-about__btn-primary,
.page-about__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: nowrap;
    box-sizing: border-box;
}

.page-about__btn-primary {
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
    color: #ffffff;
    border: none;
}

.page-about__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-about__btn-secondary {
    background: #ffffff;
    color: var(--primary-color, #E53935);
    border: 2px solid var(--primary-color, #E53935);
}

.page-about__btn-secondary:hover {
    background: var(--primary-color, #E53935);
    color: #ffffff;
    transform: translateY(-2px);
}

/* General Section Styles */
.page-about__section {
    padding: 60px 0;
}

.page-about__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-about__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--primary-color, #E53935);
    text-align: center;
    margin-bottom: 40px;
}

.page-about__section-title--light {
    color: #ffffff;
}

.page-about__content-grid {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 30px;
}

.page-about__content-grid--reverse {
    flex-direction: row-reverse;
}

.page-about__text-block {
    flex: 1;
    font-size: 1.05rem;
    color: var(--text-main, #333333);
}

.page-about__text-block p {
    margin-bottom: 15px;
}

.page-about__image-block {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-about__image {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Values Section */
.page-about__dark-section {
    background: var(--primary-color, #E53935);
    color: #ffffff;
}

.page-about__values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-about__value-card {
    background: var(--card-bg, #FFFFFF);
    color: var(--text-main, #333333);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.page-about__value-card:hover {
    transform: translateY(-5px);
}

.page-about__value-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color, #E53935); /* Ensure color contrast on white card */
    margin-bottom: 15px;
}

.page-about__value-description {
    font-size: 1rem;
    color: var(--text-main, #333333);
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .page-about__content-grid {
        flex-direction: column;
    }
    .page-about__content-grid--reverse {
        flex-direction: column;
    }
    .page-about__image-block {
        order: -1; /* Image appears above text on smaller screens */
    }
}

@media (max-width: 768px) {
    .page-about {
        font-size: 16px;
        line-height: 1.6;
    }

    /* HERO 主图区域 */
    .page-about__hero-section {
        padding-top: 10px !important; /* Small top padding */
        padding-bottom: 30px !important;
    }
    .page-about__hero-content {
        margin-top: 20px !important;
        padding: 0 15px !important;
    }
    .page-about__main-title {
        font-size: 2rem !important;
    }
    .page-about__description {
        font-size: 1rem !important;
    }

    /* 通用图片与容器 */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-about__image-block,
    .page-about__hero-image-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }
    .page-about__container,
    .page-about__section {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-about__section-title {
        font-size: 1.8rem !important;
        margin-bottom: 30px !important;
    }

    /* 按钮与按钮容器 */
    .page-about__cta-buttons {
        flex-direction: column !important;
        gap: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-about__btn-primary,
    .page-about__btn-secondary,
    .page-about a[class*="button"],
    .page-about a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding: 12px 20px !important;
    }

    /* 其他内容模块 */
    .page-about__content-grid {
        gap: 20px !important;
    }
    .page-about__text-block {
        font-size: 1rem !important;
    }
    .page-about__value-card {
        padding: 25px !important;
    }
    .page-about__value-title {
        font-size: 1.2rem !important;
    }
    .page-about__value-description {
        font-size: 0.95rem !important;
    }
}