/**
 * 产品详情页样式
 * Product Content Page Styles
 */

/* 产品特性样式 */
.product-features {
    padding: 60px 0;
    max-width: 1200px;
    margin: 0 auto;
}

h2.product-title {
    align-content: center;
    padding: 0 20px;
}

.product-description{
    color: #666;
    line-height: 1.5;
    padding: 10px 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    border-radius: 0;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #009294 0%, #116698 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::after {
    transform: scaleX(1);
    transition: all 0.3s ease;
}

.feature-icon {
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.feature-title {
    font-size: 16px;
    font-weight: 700;
    color: #333333;
    line-height: 1.3;
    letter-spacing: 0.5px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.feature-description {
    font-size: 14px;
    color: #666666;
    line-height: 1.5;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .feature-card {
        padding: 35px 25px;
    }
    
    .feature-icon img {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        padding: 0 15px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .feature-icon img {
        width: 45px;
        height: 45px;
    }
    
    .feature-title {
        font-size: 15px;
    }
    
    .feature-description {
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .product-features {
        padding: 40px 0;
    }
    
    .feature-card {
        padding: 25px 15px;
    }
    
    .feature-icon {
        margin-bottom: 20px;
    }
    
    .feature-icon img {
        width: 40px;
        height: 40px;
    }
    
    .feature-title {
        font-size: 14px;
        margin-bottom: 12px;
    }
    
    .feature-description {
        font-size: 12px;
    }
}

/* 使用场景板块样式 */
.usage-scenario-section {
    padding: 20px 0;
    background: #f8f9fa;
}

.usage-scenario-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.scenario-header {
    text-align: left;
    margin-bottom: 50px;
}

.scenario-title {
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(to bottom, #30b7aa, #027da4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.scenario-description {
    font-size: 18px;
    color: #666666;
    line-height: 1.6;
    margin: 0;
    max-width: 600px;
}

.scenario-image {
    text-align: center;
    margin: 50px 0;
    display: flex;
    justify-content: center;
}

.scenario-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.scenario-footer {
    text-align: left;
    margin-top: 50px;
    display: flex;
    justify-content: center;
}

.scenario-text {
    font-size: 16px;
    color: #555555;
    line-height: 1.8;
    margin: 0;
    text-align: left;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .usage-scenario-section {
        padding: 60px 0;
    }
    
    .scenario-title {
        font-size: 30px;
    }
    
    .scenario-description {
        font-size: 16px;
    }
    
    .scenario-text {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .usage-scenario-section {
        padding: 50px 0;
        margin-top: 40px;
    }
    
    .usage-scenario-content {
        padding: 0 15px;
    }
    
    .scenario-header {
        margin-bottom: 40px;
    }
    
    .scenario-title {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .scenario-description {
        font-size: 15px;
    }
    
    .scenario-image {
        margin: 40px 0;
    }
    
    .scenario-footer {
        margin-top: 40px;
    }
    
    .scenario-text {
        font-size: 14px;
        line-height: 1.7;
    }
}

@media (max-width: 576px) {
    .usage-scenario-section {
        padding: 40px 0;
    }
    
    .scenario-title {
        font-size: 22px;
        margin-bottom: 15px;
    }
    
    .scenario-description {
        font-size: 14px;
    }
    
    .scenario-image {
        margin: 30px 0;
    }
    
    .scenario-text {
        font-size: 13px;
        line-height: 1.6;
    }
}

/* 技术规格板块样式 */
.technical-specs-section {
    padding: 20px 0;
    background: #ffffff;
}

.technical-specs-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.specs-header {
    text-align: left;
    margin-bottom: 50px;
}

.specs-title {
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(to bottom, #30b7aa, #027da4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.specs-accordion {
    width: 100%;
}

.accordion-item {
    margin-bottom: 20px;
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.accordion-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.accordion-trigger {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    transition: background-color 0.3s ease;
}

.accordion-trigger:hover {
    background-color: #f8f9fa;
}

.accordion-trigger:focus {
    outline: 2px solid #30b7aa;
    outline-offset: -2px;
}

.accordion-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    flex: 1;
}

.accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform 0.3s ease;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: #30b7aa;
    transition: transform 0.3s ease;
}

.accordion-icon::before {
    width: 12px;
    height: 2px;
    transform: translate(-50%, -50%);
}

.accordion-icon::after {
    width: 2px;
    height: 12px;
    transform: translate(-50%, -50%);
}

.accordion-item.is-expanded .accordion-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.accordion-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #ffffff;
    will-change: max-height;
}

.accordion-panel[hidden] {
    display: none;
}

.accordion-content {
    padding: 24px;
    color: #555555;
    line-height: 1.6;
    border-top: 1px solid #f0f0f0;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .specs-title {
        font-size: 30px;
    }
    
    .accordion-trigger {
        padding: 18px 20px;
    }
    
    .accordion-title {
        font-size: 16px;
    }
    
    .accordion-content {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .technical-specs-content {
        padding: 0 15px;
    }
    
    .specs-header {
        margin-bottom: 40px;
    }
    
    .specs-title {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .accordion-trigger {
        padding: 16px 18px;
    }
    
    .accordion-title {
        font-size: 15px;
    }
    
    .accordion-icon {
        width: 18px;
        height: 18px;
        margin-left: 12px;
    }
    
    .accordion-icon::before {
        width: 10px;
    }
    
    .accordion-icon::after {
        height: 10px;
    }
    
    .accordion-content {
        padding: 18px;
    }
}

@media (max-width: 576px) {
    .specs-title {
        font-size: 22px;
        margin-bottom: 15px;
    }
    
    .accordion-item {
        margin-bottom: 16px;
    }
    
    .accordion-trigger {
        padding: 14px 16px;
    }
    
    .accordion-title {
        font-size: 14px;
        letter-spacing: 0.5px;
    }
    
    .accordion-icon {
        width: 16px;
        height: 16px;
        margin-left: 10px;
    }
    
    .accordion-icon::before {
        width: 8px;
    }
    
    .accordion-icon::after {
        height: 8px;
    }
    
    .accordion-content {
        padding: 16px;
    }
}

/* PDF下载板块样式 */
.pdf-downloads-section {
    padding: 60px 0;
    max-width: 1200px;
    margin: 0 auto;
}

.pdf-downloads-content {
    padding: 0 20px;
    max-width: 1200px;
    margin: 0;
}

.downloads-header {
    text-align: left;
    margin-bottom: 50px;
}

.downloads-title {
    font-size: 32px;
    font-weight: 700;
    color: #333333;
    letter-spacing: 2px;
    margin: 0;
    position: relative;
    display: inline-block;
}

.downloads-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #009294 0%, #116698 100%);
}

.downloads-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 0;
}

.download-item {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.download-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: #009294;
    transition: all 0.3s ease;
}

.download-icon {
    flex-shrink: 0;
}

.pdf-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.download-info {
    flex: 1;
    min-width: 0;
}

.download-title {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.download-description {
    font-size: 14px;
    color: #666666;
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.download-size {
    font-size: 12px;
    color: #999999;
    font-weight: 500;
}

.download-action {
    flex-shrink: 0;
}

.download-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #009294 0%, #116698 100%);
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 146, 148, 0.3);
}

.download-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 146, 148, 0.4);
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-btn-icon {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .pdf-downloads-section {
        padding: 40px 0;
    }
    
    .pdf-downloads-content {
        padding: 0 15px;
    }
    
    .downloads-title {
        font-size: 24px;
    }
    
    .download-item {
        padding: 20px;
        gap: 15px;
    }
    
    .download-title {
        font-size: 16px;
    }
    
    .download-description {
        font-size: 13px;
    }
    
    .pdf-icon {
        width: 40px;
        height: 40px;
    }
    
    .download-button {
        width: 40px;
        height: 40px;
    }
    
    .download-btn-icon {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 480px) {
    .download-item {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .download-info {
        order: 1;
    }
    
    .download-icon {
        order: 2;
    }
    
    .download-action {
        order: 3;
    }
}