.page-about {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #FFF5E1; /* Text Main */
    background-color: #B71C1C; /* Background */
}

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

.page-about__hero-section {
    position: relative;
    width: 100%;
    padding-top: 10px; /* Adhering to fixed header spacing rule */
    padding-bottom: 0;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-about__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 675px;
}

.page-about__hero-content {
    padding: 40px 20px;
    max-width: 900px;
    width: 100%;
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0.4); /* Semi-transparent overlay for text readability */
    border-radius: 8px;
    margin-top: -100px; /* Overlap slightly for design, but text is below image */
    position: relative;
    z-index: 1;
}

.page-about__main-title {
    font-size: clamp(2em, 4vw, 3.5em); /* Responsive font size for H1 */
    font-weight: 700;
    color: #FFCC66; /* Glow */
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__description {
    font-size: 1.1em;
    color: #FFF5E1;
    margin-bottom: 30px;
}

.page-about__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-link {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    text-align: center;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-about__btn-primary {
    background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button color */
    color: #7A0E0E; /* Deep Red for contrast */
    border: 2px solid #F2B544;
}

.page-about__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 204, 102, 0.4);
}

.page-about__btn-secondary {
    background: #7A0E0E; /* Deep Red */
    color: #FFF5E1; /* Text Main */
    border: 2px solid #F2B544; /* Border */
}

.page-about__btn-secondary:hover {
    background: #5a0b0b;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(201, 31, 23, 0.4);
}

.page-about__section-title {
    font-size: clamp(1.8em, 3vw, 2.8em);
    color: #FFCC66; /* Glow */
    text-align: center;
    margin-bottom: 40px;
    padding-top: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.page-about__introduction-section,
.page-about__history-section,
.page-about__values-section,
.page-about__products-services-section,
.page-about__security-section,
.page-about__team-support-section,
.page-about__vision-section,
.page-about__cta-section,
.page-about__faq-section {
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.page-about__dark-section {
    background-color: #7A0E0E; /* Deep Red */
    color: #FFF5E1; /* Text Main */
}

.page-about__image-content {
    width: 100%;
    height: auto;
    display: block;
    margin: 30px auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    max-width: 800px;
}

.page-about__values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-about__value-card {
    background-color: #D32F2F; /* Card BG */
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    border: 1px solid #F2B544; /* Border */
}

.page-about__value-title {
    font-size: 1.5em;
    color: #FFD86A; /* Gold color from button gradient */
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-about__service-card {
    background-color: #D32F2F; /* Card BG */
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    text-align: center;
    border: 1px solid #F2B544; /* Border */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-about__card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
    display: block;
}

.page-about__card-title {
    font-size: 1.4em;
    color: #FFD86A; /* Gold color from button gradient */
    margin-bottom: 10px;
    font-weight: 600;
}

.page-about__btn-link {
    margin-top: 15px;
    background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
    color: #7A0E0E;
    border: 2px solid #F2B544;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 0.95em;
}

.page-about__btn-link:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 204, 102, 0.4);
}

.page-about__cta-content {
    text-align: center;
    max-width: 800px;
}

.page-about__faq-list {
    margin-top: 30px;
}

.page-about__faq-item {
    background-color: #D32F2F; /* Card BG */
    border: 1px solid #F2B544; /* Border */
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    color: #FFF5E1;
}

.page-about__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.2em;
    font-weight: 600;
    cursor: pointer;
    color: #FFD86A; /* Gold */
    user-select: none;
    background-color: #C91F17; /* Main color */
}

.page-about__faq-item[open] .page-about__faq-question {
    background-color: #E53935; /* Auxiliary color */
}

.page-about__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
}

.page-about__faq-answer {
    padding: 15px 25px 20px;
    background-color: #D32F2F; /* Card BG */
    color: #FFF5E1; /* Text Main */
    font-size: 1.05em;
}

.page-about__faq-answer p {
    margin: 0;
}

/* General image styling */
.page-about img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Desktop specific adjustments */
@media (min-width: 769px) {
    .page-about__hero-content {
        margin-top: -150px;
    }
}

/* Media Query for Tablets and smaller desktops */
@media (max-width: 1024px) {
    .page-about__hero-content {
        padding: 30px 15px;
        margin-top: -80px;
    }

    .page-about__main-title {
        font-size: 3em;
    }

    .page-about__section-title {
        font-size: 2.2em;
    }

    .page-about__values-grid,
    .page-about__service-cards {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .page-about__value-card,
    .page-about__service-card {
        padding: 25px;
    }

    .page-about__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
    }
}

/* Media Query for Mobile (max-width: 768px) - MUST INCLUDE ALL REQUIRED BLOCKS */
@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;
    }

    .page-about__hero-image {
        max-height: 400px !important;
    }

    .page-about__hero-content {
        padding: 20px 15px !important;
        margin-top: -50px !important;
        border-radius: 0 !important;
    }

    .page-about__main-title {
        font-size: 2em !important;
        margin-bottom: 15px !important;
    }

    .page-about__description {
        font-size: 1em !important;
        margin-bottom: 20px !important;
    }

    /* 通用图片与容器 */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-about__container,
    .page-about__introduction-section,
    .page-about__history-section,
    .page-about__values-section,
    .page-about__products-services-section,
    .page-about__security-section,
    .page-about__team-support-section,
    .page-about__vision-section,
    .page-about__cta-section,
    .page-about__faq-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    .page-about__section-title {
        font-size: 1.5em !important;
        margin-bottom: 30px !important;
    }

    /* 按钮与按钮容器 */
    .page-about__cta-buttons {
        flex-direction: column !important;
        gap: 10px !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    .page-about__btn-primary,
    .page-about__btn-secondary,
    .page-about__btn-link {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    /* 其他内容模块 */
    .page-about__values-grid,
    .page-about__service-cards {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .page-about__value-card,
    .page-about__service-card {
        padding: 20px !important;
    }

    .page-about__card-image {
        height: 180px !important;
    }

    .page-about__faq-question {
        padding: 12px 18px !important;
        font-size: 1em !important;
    }

    .page-about__faq-answer {
        padding: 12px 18px !important;
        font-size: 0.95em !important;
    }
}