:root {
    --page-about-primary-color: #11A84E; /* 主色调 */
    --page-about-secondary-color: #22C768; /* 辅助色 */
    --page-about-bg-color: #08160F; /* 背景 */
    --page-about-card-bg: #11271B; /* Card BG */
    --page-about-text-main: #F2FFF6; /* Text Main */
    --page-about-text-secondary: #A7D9B8; /* Text Secondary */
    --page-about-border-color: #2E7A4E; /* 边框 */
    --page-about-btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* 按钮 */
    --page-about-gold-color: #F2C14E; /* Gold */
    --page-about-divider-color: #1E3A2A; /* Divider */
    --page-about-deep-green: #0A4B2C; /* Deep Green */
}

.page-about {
    font-family: Arial, sans-serif;
    color: var(--page-about-text-main); /* Default text color for dark background */
    background-color: var(--page-about-bg-color); /* Default background */
    line-height: 1.6;
}

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

.page-about__hero-section {
    position: relative;
    display: flex;
    flex-direction: column; /* Image above text */
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    background-color: var(--page-about-deep-green); /* Example background for hero */
}

.page-about__hero-image-wrapper {
    width: 100%;
    max-width: 1200px; /* Ensure image doesn't stretch too wide on desktop */
    margin-bottom: 30px;
}

.page-about__hero-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    object-fit: cover;
}

.page-about__hero-content {
    max-width: 800px;
    z-index: 1; /* Ensure text is above any potential background elements */
}

.page-about__main-title {
    color: var(--page-about-gold-color);
    margin-bottom: 20px;
    font-weight: bold;
    font-size: clamp(2em, 4vw, 3em); /* Example using clamp for responsive H1 */
    line-height: 1.2;
}

.page-about__intro-text {
    font-size: 1.1em;
    color: var(--page-about-text-secondary);
    margin-bottom: 30px;
}

.page-about__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
    width: 100%; /* Ensure container takes full width for wrapping */
    max-width: 500px;
    margin: 0 auto;
}

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-small {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
    box-sizing: border-box; /* Important for button responsiveness */
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
}

.page-about__btn-primary {
    background: var(--page-about-btn-gradient);
    color: var(--page-about-text-main);
    border: 2px solid transparent;
}

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

.page-about__btn-secondary {
    background: transparent;
    color: var(--page-about-gold-color);
    border: 2px solid var(--page-about-gold-color);
}

.page-about__btn-secondary:hover {
    background: var(--page-about-gold-color);
    color: var(--page-about-bg-color);
}

.page-about__btn-small {
    padding: 8px 15px;
    font-size: 0.9em;
    background: var(--page-about-btn-gradient);
    color: var(--page-about-text-main);
    border: 1px solid transparent;
    margin-top: 10px;
}
.page-about__btn-small:hover {
    opacity: 0.9;
}

.page-about__section {
    padding: 80px 0;
    border-bottom: 1px solid var(--page-about-divider-color);
}

.page-about__section:last-of-type {
    border-bottom: none;
}

.page-about__heading {
    color: var(--page-about-gold-color);
    text-align: center;
    margin-bottom: 60px;
    font-size: clamp(1.8em, 3vw, 2.5em);
}

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

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

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

.page-about__text-block h3 {
    color: var(--page-about-text-main);
    margin-top: 20px;
    margin-bottom: 10px;
}

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

.page-about__text-block a {
    color: var(--page-about-secondary-color);
    text-decoration: underline;
}

.page-about__text-block a:hover {
    color: var(--page-about-gold-color);
}

.page-about__image-wrapper {
    flex: 1;
    min-width: 300px; /* Ensure image doesn't get too small */
}

.page-about__image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    object-fit: cover;
}

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

.page-about__value-card {
    background-color: var(--page-about-card-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--page-about-border-color);
    color: var(--page-about-text-secondary); /* Text color for card */
}

.page-about__value-card h3 {
    color: var(--page-about-gold-color);
    margin-bottom: 15px;
    font-size: 1.4em;
}

.page-about__feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.page-about__feature-list li {
    background-color: var(--page-about-card-bg);
    margin-bottom: 15px;
    padding: 20px;
    border-radius: 8px;
    border-left: 5px solid var(--page-about-secondary-color);
    color: var(--page-about-text-secondary);
}

.page-about__list-item-title {
    color: var(--page-about-text-main);
    margin-bottom: 5px;
    font-size: 1.15em;
}


/* FAQ Section */
.page-about__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-about__faq-item {
    background-color: var(--page-about-card-bg);
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid var(--page-about-border-color);
    overflow: hidden;
}

.page-about__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-weight: bold;
    color: var(--page-about-text-main);
    background-color: var(--page-about-deep-green);
    border-bottom: 1px solid var(--page-about-border-color);
}

.page-about__faq-question:hover {
    background-color: var(--page-about-primary-color);
}

.page-about__faq-question::-webkit-details-marker {
    display: none;
}
.page-about__faq-question::marker {
    display: none;
}
.page-about__faq-item[open] .page-about__faq-question {
    border-bottom: 1px solid var(--page-about-border-color);
}

.page-about__faq-qtext {
    flex-grow: 1;
    font-size: 1.1em;
}

.page-about__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    width: 25px;
    text-align: center;
    color: var(--page-about-gold-color);
}

.page-about__faq-answer {
    padding: 20px 25px;
    font-size: 1em;
    color: var(--page-about-text-secondary);
}

.page-about__faq-answer p {
    margin-bottom: 15px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__content-grid {
        flex-direction: column;
    }
    .page-about__content-grid--reverse {
        flex-direction: column; /* Also stack in reverse order */
    }
    .page-about__hero-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .page-about__container {
        padding: 0 15px;
    }

    .page-about__hero-section {
        padding: 40px 15px;
        padding-top: 10px !important;
    }

    .page-about__main-title {
        font-size: clamp(1.8em, 7vw, 2.5em);
    }

    .page-about__intro-text {
        font-size: 1em;
    }

    .page-about__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
    }

    .page-about__btn-primary,
    .page-about__btn-secondary,
    .page-about__btn-small {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 20px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
        margin: 0 !important; /* Remove any external margins */
    }

    .page-about__section {
        padding: 60px 0;
    }

    .page-about__heading {
        margin-bottom: 40px;
        font-size: clamp(1.5em, 6vw, 2em);
    }

    .page-about__image-wrapper {
        min-width: unset;
        width: 100%;
    }

    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-about__section,
    .page-about__card,
    .page-about__container,
    .page-about__text-block,
    .page-about__image-wrapper,
    .page-about__faq-list,
    .page-about__faq-item,
    .page-about__cta-buttons,
    .page-about__values-grid {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-about__values-grid {
        grid-template-columns: 1fr;
    }
    .page-about__value-card {
        padding: 25px;
    }
    .page-about__feature-list li {
        padding: 15px;
    }
    .page-about__faq-question, .page-about__faq-answer {
        padding-left: 15px;
        padding-right: 15px;
    }
}

@media (max-width: 480px) {
    .page-about__hero-section {
        padding: 30px 10px;
        padding-top: 10px !important;
    }
    .page-about__main-title {
        font-size: clamp(1.5em, 8vw, 2em);
    }
    .page-about__cta-buttons {
        gap: 10px;
        padding: 0 10px;
    }
    .page-about__section {
        padding: 40px 0;
    }
    .page-about__heading {
        margin-bottom: 30px;
        font-size: clamp(1.3em, 7vw, 1.8em);
    }
    .page-about__container {
        padding: 0 10px;
    }
    .page-about__section,
    .page-about__card,
    .page-about__container,
    .page-about__text-block,
    .page-about__image-wrapper,
    .page-about__faq-list,
    .page-about__faq-item,
    .page-about__cta-buttons,
    .page-about__values-grid {
        padding-left: 10px;
        padding-right: 10px;
    }
}