/* style/about.css */

:root {
    --primary-color: #26A9E0;
    --secondary-color: #FFFFFF;
    --text-dark: #333333;
    --text-light: #ffffff;
    --background-dark: #0a0a0a; /* Inherited from shared.css body */
    --button-login: #EA7C07;
}

.page-about {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-light); /* Dark body background, so light text */
    background-color: var(--background-dark); /* Ensure consistency */
}

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

.page-about__text-block {
    padding: 20px 0;
}

.page-about__hero-section {
    position: relative;
    padding: 100px 0; /* Adjust for header offset if needed, but shared.css should handle body padding-top */
    background-color: var(--primary-color);
    color: var(--text-light);
    text-align: center;
    overflow: hidden;
    padding-top: 0; /* Assuming shared.css handles body padding-top */
}

.page-about__hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.3;
}

.page-about__hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-light);
}

.page-about__hero-description {
    font-size: 1.3em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light);
}

.page-about__hero-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.page-about__section-title {
    font-size: 2.5em;
    margin-bottom: 30px;
    text-align: center;
    color: var(--primary-color);
}

.page-about__section-description {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light);
}

.page-about__intro-section {
    background-color: var(--secondary-color);
    padding: 60px 0;
    color: var(--text-dark);
}

.page-about__intro-section .page-about__section-title {
    color: var(--primary-color);
}

.page-about__intro-section p {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: var(--text-dark);
}

.page-about__intro-section p a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__intro-section p a:hover {
    text-decoration: underline;
}

.page-about__mission-section {
    background-color: var(--primary-color);
    padding: 80px 0;
    color: var(--text-light);
}

.page-about__mission-section .page-about__section-title {
    color: var(--text-light);
}

.page-about__mission-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.page-about__mission-content .page-about__text-block {
    flex: 1;
}

.page-about__mission-content .page-about__image-block {
    flex: 1;
    text-align: center;
}

.page-about__image-full-width {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__mission-section p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

.page-about__mission-section p strong {
    color: var(--secondary-color);
}

.page-about__mission-section p a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__mission-section p a:hover {
    text-decoration: underline;
}

.page-about__values-section {
    background-color: var(--secondary-color);
    padding: 80px 0;
    color: var(--text-dark);
}

.page-about__values-section .page-about__section-title {
    color: var(--primary-color);
}

.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: var(--background-dark);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    color: var(--text-light);
}

.page-about__value-title {
    font-size: 1.8em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-about__value-card p {
    font-size: 1em;
    color: var(--text-light);
}

.page-about__value-card p a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__value-card p a:hover {
    text-decoration: underline;
}

.page-about__products-overview-section {
    background-color: var(--background-dark);
    padding: 80px 0;
    color: var(--text-light);
}

.page-about__products-overview-section .page-about__section-title {
    color: var(--primary-color);
}

.page-about__products-overview-section .page-about__section-description {
    color: var(--text-light);
}

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

.page-about__product-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-about__product-image {
    max-width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
}

.page-about__product-title {
    font-size: 1.5em;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.page-about__product-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.page-about__product-title a:hover {
    text-decoration: underline;
}

.page-about__product-card p {
    font-size: 0.95em;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-about__product-card p a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__product-card p a:hover {
    text-decoration: underline;
}

.page-about__btn-link {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.page-about__btn-link:hover {
    background-color: #1e87c0; /* Darker shade of primary */
}

.page-about__tech-security-section {
    background-color: var(--secondary-color);
    padding: 80px 0;
    color: var(--text-dark);
}

.page-about__tech-security-section .page-about__section-title {
    color: var(--primary-color);
}

.page-about__tech-security-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.page-about__tech-security-content .page-about__image-block {
    flex: 1;
    text-align: center;
}

.page-about__tech-security-content .page-about__text-block {
    flex: 1;
}

.page-about__image-responsive {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-about__tech-security-section p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

.page-about__tech-security-section p a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__tech-security-section p a:hover {
    text-decoration: underline;
}

.page-about__team-support-section {
    background-color: var(--primary-color);
    padding: 80px 0;
    color: var(--text-light);
}

.page-about__team-support-section .page-about__section-title {
    color: var(--text-light);
}

.page-about__team-support-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.page-about__team-support-content .page-about__image-block {
    flex: 1;
    text-align: center;
    order: 2; /* Image on right for desktop */
}

.page-about__team-support-content .page-about__text-block {
    flex: 1;
    order: 1; /* Text on left for desktop */
}

.page-about__team-support-section p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

.page-about__team-support-section p a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__team-support-section p a:hover {
    text-decoration: underline;
}

.page-about__cta-section {
    background-color: var(--secondary-color);
    padding: 80px 0;
    text-align: center;
    color: var(--text-dark);
}

.page-about__cta-section .page-about__section-title {
    color: var(--primary-color);
}

.page-about__cta-section .page-about__section-description {
    color: var(--text-dark);
}

.page-about__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.page-about__btn-primary,
.page-about__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-about__btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

.page-about__btn-primary:hover {
    background-color: #1e87c0;
    border-color: #1e87c0;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

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

.page-about__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.page-about__floating-buttons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.page-about__floating-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 45px;
    border-radius: 25px;
    color: var(--text-light);
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95em;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.page-about__floating-btn:hover {
    transform: scale(1.05);
}

.page-about__floating-btn--register {
    background-color: var(--primary-color);
}

.page-about__floating-btn--login {
    background-color: var(--button-login); /* #EA7C07 */
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-about__hero-title {
        font-size: 2.8em;
    }
    .page-about__hero-description {
        font-size: 1.1em;
    }
    .page-about__section-title {
        font-size: 2em;
    }
    .page-about__mission-content,
    .page-about__tech-security-content,
    .page-about__team-support-content {
        flex-direction: column;
        text-align: center;
    }
    .page-about__team-support-content .page-about__image-block {
        order: 1;
    }
    .page-about__team-support-content .page-about__text-block {
        order: 2;
    }
    .page-about__values-grid,
    .page-about__products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    .page-about__product-image {
        height: 180px;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-about__hero-section {
        padding: 60px 0 !important;
        padding-top: 0 !important; /* Assuming shared.css handles body padding-top */
    }
    .page-about__hero-title {
        font-size: 2.2em !important;
        margin-bottom: 15px !important;
    }
    .page-about__hero-description {
        font-size: 1em !important;
        margin-bottom: 30px !important;
        padding: 0 15px !important;
    }
    .page-about__hero-cta-buttons {
        flex-direction: column !important;
        gap: 15px !important;
        padding: 0 15px !important;
    }

    /* 产品展示图区域 */
    .page-about__products-grid {
        grid-template-columns: 1fr !important; /* Single column for products */
        padding: 0 15px !important;
    }
    .page-about__product-card {
        padding: 15px !important;
    }
    .page-about__product-image {
        height: auto !important;
        max-width: 100% !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__container,
    .page-about__section,
    .page-about__intro-section,
    .page-about__mission-section,
    .page-about__values-section,
    .page-about__products-overview-section,
    .page-about__tech-security-section,
    .page-about__team-support-section,
    .page-about__cta-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-about__mission-content,
    .page-about__tech-security-content,
    .page-about__team-support-content {
        flex-direction: column !important;
        gap: 20px !important;
    }
    .page-about__tech-security-content .page-about__text-block,
    .page-about__team-support-content .page-about__text-block {
        padding: 0 !important;
    }

    /* 按钮与按钮容器 */
    .page-about__cta-button,
    .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-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-about__cta-buttons,
    .page-about__button-group,
    .page-about__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        flex-wrap: wrap !important;
        gap: 10px !important;
        flex-direction: column !important; /* Force vertical stacking for most button groups */
    }

    /* 其他内容模块 */
    .page-about__section-title {
        font-size: 1.8em !important;
        margin-bottom: 20px !important;
    }
    .page-about__section-description,
    .page-about p,
    .page-about li {
        font-size: 1em !important;
        line-height: 1.5 !important;
    }
    .page-about__value-card {
        padding: 20px !important;
    }
    .page-about__value-title {
        font-size: 1.5em !important;
    }

    .page-about__floating-buttons {
        flex-direction: row !important;
        width: calc(100% - 40px) !important;
        left: 20px !important;
        right: 20px !important;
        justify-content: space-around !important;
        bottom: 15px !important;
    }
    .page-about__floating-btn {
        flex: 1 !important;
        max-width: 48% !important;
        width: auto !important;
        font-size: 0.9em !important;
        height: 40px !important;
    }
}