.page-about {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main, #F2FFF6); /* Default text color, adjust based on body bg */
    background: var(--bg, #08160F); /* Default background color */
}

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

.page-about__section {
    padding: 60px 0;
    position: relative;
    z-index: 1;
}

.page-about__section--intro .page-about__container,
.page-about__section--why-choose .page-about__container,
.page-about__section--responsibility .page-about__container,
.page-about__section--faq .page-about__container {
    background: var(--bg, #08160F);
    border-radius: 10px;
    padding: 40px;
}

.page-about__dark-section {
    background: var(--card-bg, #11271B);
    color: var(--text-main, #F2FFF6);
}

.page-about__section-title {
    font-size: 38px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-main, #F2FFF6);
}

.page-about__section-description {
    font-size: 18px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-secondary, #A7D9B8);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Section */
.page-about__hero-section {
    position: relative;
    width: 100%;
    padding-top: 10px; /* Small top padding, rely on body for header offset */
    background-color: var(--deep-green, #0A4B2C);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-about__hero-image-wrapper {
    width: 100%;
    max-height: 675px; /* Limit height for aspect ratio */
    overflow: hidden;
}

.page-about__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Ensures image covers area without distortion */
    object-position: center;
    opacity: 0.8;
}

.page-about__hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
    max-width: 900px;
    margin-top: -100px; /* Overlap slightly for visual effect */
    background: linear-gradient(180deg, rgba(17, 40, 27, 0.8) 0%, var(--bg, #08160F) 100%);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(50px);
    transition: transform 0.3s ease-out;
}

.page-about__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--text-main, #F2FFF6);
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-about__hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary, #A7D9B8);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-about__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    width: 100%;
}

.page-about__btn-primary,
.page-about__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s ease;
    white-space: nowrap;
    cursor: pointer;
    max-width: 100%;
    box-sizing: border-box;
}

.page-about__btn-primary {
    background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    color: #ffffff;
    border: 2px solid transparent;
}

.page-about__btn-primary:hover {
    background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
    box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

.page-about__btn-secondary {
    background: transparent;
    color: var(--glow, #57E38D);
    border: 2px solid var(--glow, #57E38D);
}

.page-about__btn-secondary:hover {
    background: var(--glow, #57E38D);
    color: var(--deep-green, #0A4B2C);
    box-shadow: 0 5px 15px rgba(87, 227, 141, 0.4);
}

/* Intro Section */
.page-about__content-wrapper {
    display: flex;
    gap: 40px;
    align-items: center;
    margin-top: 30px;
}

.page-about__text-block {
    flex: 1;
    color: var(--text-secondary, #A7D9B8);
}

.page-about__text-block h3 {
    color: var(--text-main, #F2FFF6);
    font-size: 24px;
    margin-bottom: 15px;
}

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

.page-about__image-block {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.page-about__image-block img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-about__text-link {
    color: var(--glow, #57E38D);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-about__text-link:hover {
    text-decoration: underline;
    color: var(--gold, #F2C14E);
}

/* Values Section */
.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: var(--card-bg, #11271B);
    border: 1px solid var(--border, #2E7A4E);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow, #57E38D);
}

.page-about__card-title {
    font-size: 22px;
    font-weight: bold;
    color: var(--text-main, #F2FFF6);
    margin-bottom: 15px;
}

.page-about__value-card p {
    color: var(--text-secondary, #A7D9B8);
    font-size: 16px;
}

/* Why Choose Section */
.page-about__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-about__feature-card {
    background: var(--card-bg, #11271B);
    border: 1px solid var(--border, #2E7A4E);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow, #57E38D);
}

.page-about__feature-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.page-about__feature-card .page-about__card-title {
    padding: 20px 20px 0;
    font-size: 20px;
}

.page-about__feature-card p {
    padding: 0 20px 20px;
    color: var(--text-secondary, #A7D9B8);
    font-size: 15px;
}

/* History Section */
.page-about__timeline {
    position: relative;
    max-width: 900px;
    margin: 60px auto 0;
    padding: 0 20px;
}

.page-about__timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--divider, #1E3A2A);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.page-about__timeline-item {
    padding: 10px 0;
    position: relative;
    width: 50%;
    background: var(--card-bg, #11271B);
    border: 1px solid var(--border, #2E7A4E);
    border-radius: 10px;
    margin-bottom: 40px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
    transform: translateX(-15px);
}

.page-about__timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
    transform: translateX(15px);
}

.page-about__timeline-item::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    right: -9px;
    background-color: var(--glow, #57E38D);
    border: 2px solid var(--deep-green, #0A4B2C);
    top: 27px;
    border-radius: 50%;
    z-index: 1;
}

.page-about__timeline-item:nth-child(even)::after {
    left: -9px;
}

.page-about__timeline-year {
    font-size: 28px;
    font-weight: bold;
    color: var(--gold, #F2C14E);
    margin-bottom: 10px;
}

.page-about__timeline-item p {
    font-size: 16px;
    color: var(--text-secondary, #A7D9B8);
}

/* CTA Section */
.page-about__section--cta .page-about__section-title {
    font-size: 32px;
    margin-bottom: 20px;
}

.page-about__section--cta .page-about__section-description {
    font-size: 18px;
    margin-bottom: 30px;
}

.page-about__text-center {
    text-align: center;
}

/* FAQ Section */
details.page-about__faq-item {
    margin-bottom: 15px;
    border-radius: 10px;
    border: 1px solid var(--border, #2E7A4E);
    overflow: hidden;
    background: var(--card-bg, #11271B);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

details.page-about__faq-item summary.page-about__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
    color: var(--text-main, #F2FFF6);
    font-size: 18px;
    font-weight: 600;
}

details.page-about__faq-item summary.page-about__faq-question::-webkit-details-marker {
    display: none;
}

details.page-about__faq-item summary.page-about__faq-question:hover {
    background: var(--deep-green, #0A4B2C);
}

.page-about__faq-qtext {
    flex: 1;
    line-height: 1.5;
    text-align: left;
}

.page-about__faq-toggle {
    font-size: 28px;
    font-weight: bold;
    color: var(--glow, #57E38D);
    flex-shrink: 0;
    margin-left: 15px;
    width: 30px;
    text-align: center;
}

details.page-about__faq-item .page-about__faq-answer {
    padding: 0 25px 25px;
    background: var(--deep-green, #0A4B2C);
    border-radius: 0 0 10px 10px;
    color: var(--text-secondary, #A7D9B8);
}

.page-about__faq-answer p {
    margin-bottom: 10px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-about__section-title {
        font-size: 32px;
    }
    .page-about__hero-content {
        margin-top: -80px;
        padding: 30px 15px;
    }
    .page-about__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-about__hero-description {
        font-size: 1rem;
    }
    .page-about__btn-primary,
    .page-about__btn-secondary {
        padding: 12px 25px;
        font-size: 16px;
    }
    .page-about__content-wrapper {
        flex-direction: column;
        gap: 30px;
    }
    .page-about__timeline::before {
        left: 20px;
    }
    .page-about__timeline-item {
        width: 100%;
        left: 0 !important;
        transform: translateX(0) !important;
        margin-bottom: 20px;
        padding: 20px;
    }
    .page-about__timeline-item::after {
        left: 12px !important;
        right: auto;
        top: 22px;
    }
    .page-about__timeline-item:nth-child(odd) {
        text-align: left;
    }
    details.page-about__faq-item summary.page-about__faq-question {
        font-size: 16px;
        padding: 15px 20px;
    }
    .page-about__faq-toggle {
        font-size: 24px;
        width: 25px;
    }
    details.page-about__faq-item .page-about__faq-answer {
        padding: 0 20px 20px;
    }
}

@media (max-width: 768px) {
    .page-about__section {
        padding: 40px 0;
    }
    .page-about__container {
        padding: 15px;
    }
    .page-about__section--intro .page-about__container,
    .page-about__section--why-choose .page-about__container,
    .page-about__section--responsibility .page-about__container,
    .page-about__section--faq .page-about__container {
        padding: 25px;
    }
    .page-about__section-title {
        font-size: 28px;
        margin-bottom: 20px;
    }
    .page-about__section-description {
        font-size: 16px;
        margin-bottom: 30px;
    }
    /* HERO 主图区域 */
    .page-about__hero-section {
        padding-top: 10px;
    }
    .page-about__hero-image {
        object-fit: contain !important; /* Mobile: Ensures image is fully visible */
        aspect-ratio: unset !important; /* Mobile: Allows image to scale freely */
        height: auto !important;
        width: 100% !important;
    }
    .page-about__hero-content {
        margin-top: -60px;
        padding: 25px 15px;
        transform: translateY(30px);
    }
    .page-about__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }
    .page-about__hero-description {
        font-size: 0.95rem;
    }
    /* 按钮与按钮容器 */
    .page-about__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding-left: 15px;
        padding-right: 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-about__btn-primary,
    .page-about__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding: 14px 20px;
        font-size: 16px;
    }
    /* 通用图片与容器 */
    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-about__section,
    .page-about__container,
    .page-about__content-wrapper,
    .page-about__values-grid,
    .page-about__features-grid,
    .page-about__timeline {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden;
    }
    /* 产品展示图区域 (No gameshow for about page, but general grid adaptability) */
    .page-about__values-grid,
    .page-about__features-grid {
        grid-template-columns: 1fr;
    }
    /* 装饰主标题 + 长文 SEO 区 */
    .page-about__section-title-wrap,
    .page-about__article-body,
    .page-about__article-figure {
        text-align: center;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .page-about__text-block p {
        font-size: 15px;
    }
    .page-about__timeline::before {
        left: 15px;
    }
    .page-about__timeline-item {
        padding: 15px;
        margin-left: 0;
        margin-right: 0;
    }
    .page-about__timeline-item::after {
        left: 7px !important;
        top: 17px;
    }
    .page-about__timeline-year {
        font-size: 24px;
    }
    details.page-about__faq-item summary.page-about__faq-question {
        font-size: 15px;
        padding: 15px;
    }
    .page-about__faq-toggle {
        font-size: 22px;
        width: 22px;
        margin-left: 10px;
    }
    details.page-about__faq-item .page-about__faq-answer {
        padding: 0 15px 15px;
    }
}