/* ========================================
   Products Page Styles (page_2)
   ======================================== */

.products-page {
    background: var(--color-bg-secondary);
    padding: var(--spacing-2xl) 0;
}

.products-page__wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.products-page__container {
    width: var(--container-width);
    height: var(--section-height);
    max-width: 1400px;
    display: flex;
    gap: 5%;
}

.products-page__image-box {
    width: 55%;
    height: 100%;
}

.products-page__text-box {
    width: 40%;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.products-page__button-group {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    margin-bottom: 80px;
}

/* 产品信息文字样式 */
.products-page__text-box .page-title {
    font-size: 2.4rem;
    margin-bottom: 0;
    color: #333;
}

.products-page__subtitle {
    font-size: 1.4rem;
    line-height: 2.0;
    color: #666;
    display: block;
    margin-bottom: 0;
}

.section-content {
    font-size: 1.1rem;
    line-height: 2.0;
    color: #666;
}

.text-highlight {
    color: #007bff;
    font-weight: bold;
}

.section-content a {
    display: inline-block;
    margin-top: 0;
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
}

.section-content a:hover {
    text-decoration: underline;
}

/* ========================================
   About Page Styles (page_3)
   ======================================== */

.about-page {
    background: var(--color-bg-tertiary);
    line-height: 1.6;
    color: var(--color-text-primary);
}

.about-page__container {
    height: 100vh;
    max-width: 1000px;
    margin: 0 auto;
    padding: calc(var(--navbar-height) + 55px) var(--spacing-lg) var(--spacing-2xl);
    position: relative;
    display: flex;
    flex-direction: column;
}

.about-page__content {
    background: var(--color-bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: opacity var(--transition-base);
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

.about-section {
    display: none;
}

.about-section.active {
    display: block;
}

.about-page__nav-buttons {
    position: absolute;
    top: calc(var(--navbar-height) + var(--navbar-gap));
    right: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
}

.about-page__nav-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    background: var(--color-border);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.about-page__nav-btn.active {
    background: var(--color-primary);
    color: var(--color-bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 3px 6px rgba(0, 123, 255, 0.2);
}

.about-page__nav-btn:hover:not(.active) {
    background: var(--color-text-placeholder);
}

.about-page__title {
    font-size: 2.4rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.about-page__text-block {
    margin-bottom: 1.5rem;
}

.about-page__text-block p {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.about-page__highlight {
    color: var(--color-secondary);
    font-weight: bold;
}

.about-page__highlight-teal {
    color: #03BBB4;
    font-weight: bold;
}

.about-page__section-title {
    font-size: 1.4rem;
    color: #6bb5ff;
    font-weight: bold;
}

.about-page__subtitle {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: block;
    font-weight: bold;
}

.about-page__layout {
    display: flex;
    gap: 5%;
    align-items: flex-start;
}

.about-page__image-box {
    width: 45%;
    height: 400px;
    box-shadow: var(--shadow-lg);
}

.about-page__text-content {
    width: 50%;
    padding: var(--spacing-lg);
}

.about-page__image-container {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.about-page__image {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: 0.9rem;
}

table th,
table td {
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm);
    text-align: left;
}

table th {
    background-color: var(--color-bg-secondary);
    font-weight: bold;
}

table tr:nth-child(even) {
    background-color: var(--color-bg-tertiary);
}

table tr:hover {
    background-color: var(--color-bg-hover);
}

@media (max-width: 768px) {
    .about-page__layout {
        flex-direction: column;
    }

    .about-page__image-box,
    .about-page__text-content {
        width: 100%;
    }

    .about-page__image-box {
        height: 300px;
        margin-bottom: var(--spacing-lg);
    }

    .about-page__nav-buttons {
        position: static;
        justify-content: center;
        margin-bottom: var(--spacing-lg);
    }

    .about-page__content {
        max-height: none;
        padding: var(--spacing-lg);
    }

    .products-page {
        padding: var(--spacing-lg) 0;
    }

    .products-page__container {
        width: 90%;
        height: auto;
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .products-page__image-box {
        width: 100%;
        height: 250px;
    }

    .products-page__text-box {
        width: 100%;
        padding: var(--spacing-md);
    }
}

/* ========================================
   News Page Styles (page_5)
   ======================================== */

.news-page {
    background-color: var(--color-bg-secondary);
}

.news-page__container {
    display: flex;
    gap: var(--spacing-xl);
    width: var(--container-width);
    max-width: 1200px;
    position: relative;
    padding: var(--spacing-lg);
    box-sizing: border-box;
}

.news-page__text-section {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-page__text-section h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.news-page__text-section p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.news-page__image-section {
    position: relative;
    flex-shrink: 0;
    width: 35vw;
    height: 35vw;
}

.news-page__large-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 1;
}

.news-page__small-image {
    position: absolute;
    top: 50%;
    left: -10%;
    transform: translateY(-50%);
    width: 30%;
    height: 30%;
    background-color: transparent;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 10;
}

.news-page__button-section {
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.news-page__fade-in {
    animation: newsFadeIn var(--transition-slow) ease-in-out;
    color: var(--color-text-primary);
}

@keyframes newsFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .news-page__container {
        flex-direction: column;
        width: 95%;
        gap: var(--spacing-lg);
    }

    .news-page__text-section {
        width: 100%;
        padding: var(--spacing-md);
    }

    .news-page__image-section {
        width: 100%;
        max-width: 100%;
        height: 250px;
        max-height: 40vh;
    }

    .news-page__small-image {
        left: -15%;
        width: 25%;
        height: 25%;
    }

    .news-page__text-section h2 {
        font-size: var(--font-size-xl);
    }

    .news-page__text-section p {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .products-page__container {
        width: 95%;
    }

    .products-page__image-box {
        height: 200px;
    }

    .products-page__button-group {
        margin-top: var(--spacing-lg);
        margin-bottom: var(--spacing-xl);
    }

    .about-page__container {
        padding: calc(var(--navbar-height) + 30px) var(--spacing-sm) var(--spacing-lg);
    }

    .about-page__content {
        padding: var(--spacing-md);
    }

    .about-page__image-box {
        height: 200px;
    }

    .about-page__title {
        font-size: 1.8rem;
    }

    .about-page__subtitle {
        font-size: 1.2rem;
    }

    .news-page__container {
        padding: var(--spacing-md);
    }

    .news-page__text-section {
        padding: var(--spacing-sm);
    }

    .news-page__image-section {
        height: 200px;
        max-height: 35vh;
    }

    .news-page__small-image {
        left: -12%;
        width: 20%;
        height: 20%;
    }

    .news-page__text-section h2 {
        font-size: var(--font-size-lg);
    }

    .news-page__text-section p {
        font-size: 13px;
    }

    table {
        font-size: 0.8rem;
    }

    table th,
    table td {
        padding: var(--spacing-xs);
    }
}