/**
 * ============================================================
 *  Hua Yi Teng - 产品页面样式（按需加载）
 *  整合自: products-style.css, products-desktop-style.css,
 *          products-ip44-style.css, products-plug-style.css,
 *          products-usb-style.css, 全部 product-detail-*.css
 *  最后更新: 2026-07-04
 *  加载条件: 路径包含 /products/ 或 /product/
 * ============================================================
 */

/* ============================================================
   PART 1: 产品列表页 (products-style.css)
   ============================================================ */

.products-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    padding: 50px 0;
}
.products-content {
    flex: 1;
    min-width: 280px;
}
.hot-title {
    font-size: 24px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 10px;
}
.hot-underline {
    width: 50px;
    height: 3px;
    background: #FFB703;
    margin-bottom: 30px;
}
.hot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}
.hot-card {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    display: block;
}
.hot-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    border-color: #1e7470;
}
.hot-image {
    background: #FAFAFA;
    padding: 25px;
    text-align: center;
    border-bottom: 1px solid #E8EDF2;
}
.hot-image img {
    max-width: 70%;
    height: auto;
    transition: transform 0.3s ease;
}
.hot-card:hover .hot-image img { transform: scale(1.03); }
.hot-info { padding: 18px; }
.hot-name {
    font-size: 15px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 6px;
}
.hot-specs {
    font-size: 12px;
    color: #1e7470;
    font-weight: 600;
    margin-bottom: 8px;
}
.hot-desc {
    font-size: 12px;
    color: #5A6B7F;
    line-height: 1.4;
}
.secondary-badge {
    display: inline-block;
    background: #ED8936;
    color: #FFFFFF;
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 6px;
    vertical-align: middle;
}


/* ============================================================
   PART 2: 分类产品网格 (category pages)
   ============================================================ */

.category-products {
    flex: 1;
    min-width: 280px;
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* 分类页产品卡片微调 */
.product-grid .product-card .product-image {
    background: #FAFAFA;
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid #E8EDF2;
}
.product-grid .product-card .product-image img {
    max-width: 70%;
    height: auto;
    transition: transform 0.3s ease;
}
.product-grid .product-card:hover .product-image img {
    transform: scale(1.03);
}
.product-grid .product-card .product-info { padding: 20px; }
.product-grid .product-card .product-title {
    font-size: 16px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 6px;
}
.product-grid .product-card .product-specs {
    font-size: 12px;
    color: #1e7470;
    font-weight: 600;
    margin-bottom: 10px;
}
.product-grid .product-card .product-desc {
    font-size: 12px;
    color: #5A6B7F;
    line-height: 1.5;
    margin-bottom: 12px;
}
.product-grid .product-card .product-cert {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.product-grid .product-card .product-cert span {
    font-size: 10px;
    background: #F0F4F0;
    padding: 3px 8px;
    border-radius: 12px;
    color: #1e7470;
    font-weight: 500;
}

/* USB 分类卡片特殊样式 */
.product-grid .product-card .product-image {
    padding: 35px 30px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-grid .product-card .product-image img { max-width: 65%; }
.product-grid .product-card .product-title { font-size: 17px; }
.product-grid .product-card .product-specs { font-size: 13px; }
.product-grid .product-card .product-desc { min-height: 36px; }


/* ============================================================
   PART 3: 更多型号 / 对比 / 选型
   ============================================================ */

.more-models {
    margin-top: 50px;
    background: #F8FAFC;
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
}
.more-models h3 {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 15px;
}
.more-models p {
    font-size: 14px;
    color: #4A5568;
    margin-bottom: 25px;
}
.model-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}
.model-tag {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 30px;
    padding: 8px 20px;
    font-size: 13px;
    font-weight: 500;
    color: #0B2545;
    transition: all 0.3s ease;
}
.model-tag:hover {
    border-color: #1e7470;
    color: #1e7470;
    transform: translateY(-2px);
}

/* 对比表格 (统一保留一份) */
.compare-section {
    margin-top: 50px;
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 35px 30px;
    overflow-x: auto;
}
.compare-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    text-align: center;
    margin-bottom: 25px;
}
.compare-title span {
    color: #1e7470;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 600px;
}
.compare-table th {
    background: #F8FAFC;
    padding: 12px 15px;
    text-align: center;
    font-weight: 600;
    color: #0B2545;
    border-bottom: 2px solid #E8EDF2;
}
.compare-table th:first-child {
    text-align: left;
    width: 20%;
}
.compare-table td {
    padding: 12px 15px;
    text-align: center;
    border-bottom: 1px solid #F0F0F0;
    color: #4A5568;
}
.compare-table td:first-child {
    text-align: left;
    font-weight: 600;
    color: #0B2545;
}
.compare-table tr:hover td {
    background: #F8FAFC;
}
.compare-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 12px;
    background: #E8F4F3;
    color: #1e7470;
}
.compare-tag.highlight {
    background: #FFB703;
    color: #0B2545;
}

/* 选型建议 */
.selector-section {
    margin-top: 30px;
    background: #F8FAFC;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
}
.selector-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 15px;
}
.selector-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}
.selector-item {
    background: #FFFFFF;
    padding: 20px 15px;
    border-radius: 12px;
    border: 1px solid #E8EDF2;
    transition: 0.3s;
}
.selector-item:hover {
    border-color: #1e7470;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.selector-item .icon {
    font-size: 28px;
    margin-bottom: 10px;
}
.selector-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 6px;
}
.selector-item p {
    font-size: 12px;
    color: #6B7A8F;
    line-height: 1.5;
    margin: 0;
}
.more-models-note {
    margin-top: 30px;
    background: #FFFFFF;
    border: 1px dashed #D1D5DB;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
}
.more-models-note p {
    font-size: 14px;
    color: #4A5568;
}
.more-models-note p i {
    color: #1e7470;
    margin-right: 8px;
}
.more-models-note p a {
    color: #1e7470;
    font-weight: 600;
    text-decoration: none;
}
.more-models-note p a:hover {
    text-decoration: underline;
}


/* ============================================================
   PART 4: 产品详情页 (所有 product-detail-*.css)
   ============================================================ */

/* 产品概览 - 通用 */
.product-overview {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
}
.product-overview.gap-large { gap: 50px; padding: 40px; align-items: center; }
.product-image {
    flex: 1;
    min-width: 200px;
    background: #FAFAFA;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
}
.product-image.fixed-size {
    flex: 0 0 320px;
    min-width: 280px;
    border-radius: 16px;
    padding: 40px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-image img {
    max-width: 80%;
    height: auto;
}
.product-image.fixed-size img {
    max-width: 100%;
    max-height: 280px;
    width: auto;
    height: auto;
    transition: transform 0.3s ease;
    display: block;
    margin: 0 auto;
}
.product-image.fixed-size:hover img { transform: scale(1.02); }
.product-info {
    flex: 1;
    min-width: 250px;
}
.product-title {
    font-size: 28px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 10px;
}
.product-subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #1e7470;
    margin-bottom: 10px;
}
.product-model {
    font-size: 14px;
    color: #1e7470;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #E8EDF2;
}
.product-short-desc {
    font-size: 14px;
    line-height: 1.6;
    color: #4A5568;
    margin-bottom: 20px;
}
.product-short-desc.compact { line-height: 1.5; }

/* 规格表格 */
.spec-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
}
.spec-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e7470;
    display: inline-block;
}
.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
.spec-table tr { border-bottom: 1px solid #E8EDF2; }
.spec-table td {
    padding: 12px 15px;
    font-size: 13px;
    vertical-align: top;
}
.spec-table td:first-child {
    width: 35%;
    font-weight: 600;
    color: #0B2545;
    background: #F8FAFC;
}
.spec-table td:last-child { color: #4A5568; }

/* 线缆提示 */
.cable-notice {
    background: #F8FAFC;
    padding: 16px 24px;
    margin-bottom: 30px;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    border-left: 3px solid #1e7470;
}
.cable-notice i {
    color: #1e7470;
    margin-right: 8px;
}

/* IP44 提示 */
.ip44-notice {
    background: #F8FAFC;
    padding: 16px 24px;
    margin-bottom: 30px;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    border-left: 3px solid #1e7470;
}
.ip44-notice i {
    color: #1e7470;
    margin-right: 8px;
}

/* 接口选项 */
.interface-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 20px 0;
}
.interface-item {
    background: #F8FAFC;
    border: 1px solid #E8EDF2;
    border-radius: 12px;
    padding: 20px 15px;
    text-align: center;
    transition: all 0.3s ease;
}
.interface-item:hover {
    border-color: #1e7470;
    background: #FFFFFF;
}
.interface-item i {
    font-size: 32px;
    color: #1e7470;
    margin-bottom: 10px;
}
.interface-item h5 {
    font-size: 14px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 4px;
}
.interface-item p {
    font-size: 11px;
    color: #6B7A8F;
    margin: 0;
}
.interface-available {
    display: inline-block;
    font-size: 9px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    margin-top: 6px;
}
.interface-available.yes {
    background: #E8F5E9;
    color: #2E7D32;
}
.interface-available.no {
    background: #F5F5F5;
    color: #999;
}
.interface-note {
    background: #FFF8E1;
    border-left: 3px solid #FFB703;
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 13px;
    color: #4A5568;
    margin-top: 15px;
}
.interface-note i {
    color: #FFB703;
    margin-right: 8px;
}

/* 配置卡片 */
.config-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
}
.config-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e7470;
    display: inline-block;
}
.config-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 20px;
}
.config-card {
    background: #F8FAFC;
    border: 1px solid #E8EDF2;
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
}
.config-card:hover {
    border-color: #1e7470;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}
.config-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.config-card h4 i { color: #1e7470; }
.config-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.config-card ul li {
    font-size: 13px;
    color: #4A5568;
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
}
.config-card ul li:before {
    content: "•";
    color: #1e7470;
    font-weight: bold;
    position: absolute;
    left: 0;
}
.config-tag {
    display: inline-block;
    background: #1e7470;
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 12px;
    margin-left: 8px;
}
.config-icon {
    font-size: 36px;
    color: #1e7470;
    margin-bottom: 15px;
}

/* LED 选项 */
.led-section {
    background: #F8FAFC;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
    border: 1px solid #E8EDF2;
    text-align: center;
}
.led-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: #0B2545;
}
.led-section .subtitle {
    font-size: 13px;
    color: #4A5568;
    margin-bottom: 20px;
}
.led-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 25px;
}
.led-item {
    text-align: center;
    min-width: 100px;
}
.led-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 auto 8px auto;
}
.led-dot.none { background: #e0e0e0; }
.led-dot.red { background: #e74c3c; }
.led-dot.green { background: #2ecc71; }
.led-dot.red-green { background: linear-gradient(135deg, #e74c3c 50%, #2ecc71 50%); }
.led-item .label {
    font-size: 13px;
    font-weight: 600;
    color: #0B2545;
}
.led-item .desc {
    font-size: 11px;
    color: #6B7A8F;
}

/* 订购信息 */
.order-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: space-between;
}
.order-item {
    flex: 1;
    min-width: 180px;
    background: #FFFFFF;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #E8EDF2;
}
.order-item strong {
    font-size: 13px;
    color: #0B2545;
    display: block;
}
.order-item p {
    font-size: 12px;
    color: #4A5568;
    margin-top: 5px;
}

/* AC 插口选项 */
.ac-options {
    background: #F8FAFC;
    padding: 20px 24px;
    margin-bottom: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #E8EDF2;
}
.ac-options-title {
    font-size: 16px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 12px;
}
.ac-options-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}
.ac-option-item {
    background: #FFFFFF;
    padding: 10px 20px;
    border-radius: 30px;
    border: 1px solid #E8EDF2;
    font-size: 13px;
    font-weight: 600;
    color: #0B2545;
}
.ac-option-item i {
    color: #1e7470;
    margin-right: 6px;
}
.ac-options-note {
    font-size: 12px;
    color: #6B7A8F;
    margin-top: 12px;
}

/* Key Features (详情页) */
.key-features {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin: 20px 0 25px 0;
    padding: 15px 0;
    border-bottom: 1px solid #E8EDF2;
}
.key-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    color: #0B2545;
}
.key-feature-item i {
    font-size: 20px;
    color: #1e7470;
    width: 24px;
    text-align: center;
}

/* PD 输出表格 */
.pd-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    font-size: 13px;
}
.pd-table th {
    background: #0B2545;
    color: #FFFFFF;
    padding: 10px 12px;
    text-align: center;
    font-weight: 600;
}
.pd-table td {
    padding: 8px 12px;
    text-align: center;
    border-bottom: 1px solid #E8EDF2;
}
.pd-table tr:nth-child(even) td { background: #F8FAFC; }

/* 协议标签 */
.protocol-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.protocol-tag {
    background: #E8F4F3;
    color: #1e7470;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 20px;
}

/* Functions 功能列表 */
.functions-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
}
.functions-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e7470;
    display: inline-block;
}
.functions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 20px 0;
}
.function-item {
    background: #F8FAFC;
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 13px;
    color: #0B2545;
}
.function-number {
    font-weight: 700;
    color: #1e7470;
    margin-right: 8px;
}
.feature-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
    padding-top: 20px;
    border-top: 1px solid #E8EDF2;
}
.feature-item {
    flex: 1;
    min-width: 160px;
    background: #F8FAFC;
    padding: 15px;
    border-radius: 12px;
    text-align: center;
}
.feature-item i {
    font-size: 24px;
    color: #1e7470;
    margin-bottom: 10px;
}
.feature-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #0B2545;
}
.feature-item p {
    font-size: 12px;
    color: #4A5568;
}

/* IR 远程控制 */
.ir-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
}
.ir-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e7470;
    display: inline-block;
}
.ir-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    margin: 25px 0;
}
.ir-item {
    text-align: center;
    flex: 1;
    min-width: 120px;
}
.ir-item i {
    font-size: 48px;
    color: #1e7470;
}
.ir-item h4 {
    font-size: 14px;
    font-weight: 700;
    margin-top: 12px;
    margin-bottom: 6px;
    color: #0B2545;
}
.ir-item p {
    font-size: 12px;
    color: #4A5568;
}
.ir-note {
    background: #F8FAFC;
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    margin-top: 20px;
}
.ir-note p {
    font-size: 13px;
    color: #4A5568;
}
.ir-note i {
    color: #1e7470;
    margin-right: 8px;
}

/* 医疗认证 */
.medical-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
    border-left: 4px solid #1e7470;
}
.medical-header {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.medical-header i {
    font-size: 32px;
    color: #1e7470;
}
.medical-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin: 0;
}
.medical-badge-box {
    background: #E8F5E9;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}
.medical-badge-box p {
    font-size: 14px;
    color: #2E7D32;
    margin-bottom: 10px;
}
.medical-badge-box p strong { color: #1B5E20; }
.medical-badge-box .desc {
    font-size: 13px;
    color: #4A5568;
}
.medical-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.medical-col {
    flex: 1;
    min-width: 200px;
}
.medical-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 10px;
}
.medical-col ul {
    list-style: none;
    padding: 0;
}
.medical-col ul li {
    font-size: 13px;
    color: #4A5568;
    margin-bottom: 8px;
}
.medical-col ul li i {
    color: #1e7470;
    margin-right: 8px;
}
.medical-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.medical-tag {
    background: #FFFFFF;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    border: 1px solid #E8EDF2;
}
.medical-note {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #E8EDF2;
}
.medical-note p {
    font-size: 12px;
    color: #6B7A8F;
}
.medical-note p i {
    margin-right: 8px;
    color: #1e7470;
}

/* 应用场景标签 */
.applications-section {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 50px;
    text-align: center;
}
.applications-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e7470;
    display: inline-block;
}
.app-tag {
    display: inline-block;
    background: #F8FAFC;
    padding: 8px 20px;
    border-radius: 30px;
    margin: 6px 8px;
    font-size: 13px;
    font-weight: 500;
    color: #0B2545;
    border: 1px solid #E8EDF2;
    transition: 0.2s;
}
.app-tag:hover {
    border-color: #1e7470;
    background: #E8F4F3;
    color: #1e7470;
}


/* ============================================================
   PART 5: 产品页面响应式适配
   ============================================================ */

@media (max-width: 1000px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hot-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .selector-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }
    .hot-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }
    .product-overview {
        flex-direction: column;
        padding: 20px;
    }
    .product-overview.gap-large {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 30px 20px;
    }
    .product-image.fixed-size {
        flex: auto;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }
    .spec-table td {
        display: block;
        width: 100%;
    }
    .spec-table td:first-child {
        width: 100%;
    }
    .interface-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin-left: auto;
        margin-right: auto;
    }
    .config-grid {
        grid-template-columns: 1fr;
    }
    .functions-grid {
        grid-template-columns: 1fr;
    }
    .feature-row {
        flex-direction: column;
    }
    .ir-grid {
        flex-direction: column;
        align-items: center;
    }
    .medical-grid {
        flex-direction: column;
    }
    .order-grid {
        flex-direction: column;
    }
    .ac-options-grid {
        flex-direction: column;
        align-items: center;
    }
    .key-features {
        justify-content: center;
    }
    .cable-notice,
    .ip44-notice {
        padding: 12px 16px;
        font-size: 12px;
    }
    .product-title {
        font-size: 22px;
    }
    .product-subtitle {
        font-size: 16px;
    }
    .selector-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }
    .compare-section {
        padding: 20px 15px;
    }
    .compare-table {
        font-size: 12px;
        min-width: 500px;
    }
    .compare-table th,
    .compare-table td {
        padding: 8px 10px;
    }
    .product-card .product-image {
        min-height: 150px;
        padding: 25px;
    }
    .pd-table th,
    .pd-table td {
        padding: 6px 8px;
        font-size: 11px;
    }
    .product-grid .product-card .product-image {
        padding: 25px;
    }
    .product-grid .product-card .product-title {
        font-size: 15px;
    }
}

@media (max-width: 640px) {
    .product-title {
        font-size: 20px;
    }
    .product-subtitle {
        font-size: 14px;
    }
    .product-overview.gap-large {
        padding: 20px 15px;
    }
    .product-image.fixed-size {
        padding: 25px 15px;
    }
    .product-image.fixed-size img {
        max-height: 180px;
    }
    .spec-section {
        padding: 20px 15px;
    }
    .spec-title {
        font-size: 17px;
    }
    .config-section {
        padding: 20px 15px;
    }
    .config-title {
        font-size: 17px;
    }
    .config-card {
        min-width: 180px;
        padding: 20px;
    }
    .config-card h4 {
        font-size: 15px;
    }
    .functions-section {
        padding: 20px 15px;
    }
    .functions-title {
        font-size: 17px;
    }
    .ir-section {
        padding: 20px 15px;
    }
    .ir-title {
        font-size: 17px;
    }
    .medical-section {
        padding: 20px 15px;
    }
    .medical-header h3 {
        font-size: 17px;
    }
    .medical-badge-box {
        padding: 15px;
    }
    .medical-badge-box p {
        font-size: 13px;
    }
    .applications-section {
        padding: 20px 15px;
    }
    .applications-title {
        font-size: 17px;
    }
    .app-tag {
        font-size: 12px;
        padding: 6px 14px;
        margin: 4px 6px;
    }
    .ac-options {
        padding: 16px 14px;
    }
    .ac-options-title {
        font-size: 14px;
    }
    .ac-option-item {
        font-size: 12px;
        padding: 8px 14px;
    }
    .feature-item {
        min-width: 120px;
        padding: 12px;
    }
    .feature-item i {
        font-size: 20px;
    }
    .led-grid {
        gap: 15px;
    }
    .led-dot {
        width: 32px;
        height: 32px;
    }
    .more-models {
        padding: 25px 18px;
    }
    .more-models h3 {
        font-size: 17px;
    }
    .model-tags {
        gap: 10px;
    }
    .model-tag {
        font-size: 12px;
        padding: 6px 14px;
    }
    .compare-title {
        font-size: 17px;
    }
    .selector-section {
        padding: 20px 15px;
    }
    .selector-section h3 {
        font-size: 16px;
    }
    .more-models-note {
        padding: 18px 15px;
    }
    .more-models-note p {
        font-size: 13px;
    }
}
/* ============================================================
   PART 6: Interchangeable 页面独有样式 (products-inter-style.css)
   ============================================================ */

/* ========== 单产品卡片 — 大尺寸 ========== */
.single-product-card {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}
.single-product-card:hover {
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    border-color: #1e7470;
}
.single-product-card .product-image {
    background: #FAFAFA;
    padding: 50px 30px;
    text-align: center;
    border-bottom: 1px solid #E8EDF2;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.single-product-card .product-image img {
    max-width: 55%;
    height: auto;
    transition: transform 0.3s ease;
}
.single-product-card:hover .product-image img {
    transform: scale(1.03);
}
.single-product-card .product-info {
    padding: 28px 30px 25px 30px;
}
.single-product-card .product-title {
    font-size: 22px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 4px;
}
.single-product-card .product-specs {
    font-size: 15px;
    color: #1e7470;
    font-weight: 600;
    margin-bottom: 12px;
}
.single-product-card .product-desc {
    font-size: 14px;
    color: #4A5568;
    line-height: 1.6;
    margin-bottom: 16px;
    max-width: 700px;
}
.single-product-card .product-cert {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.single-product-card .product-cert span {
    font-size: 11px;
    background: #F0F4F0;
    padding: 4px 12px;
    border-radius: 20px;
    color: #1e7470;
    font-weight: 600;
}

/* ========== 插头类型展示 ========== */
.plug-section {
    margin-top: 40px;
    background: #F8FAFC;
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
    border: 1px solid #E8EDF2;
}
.plug-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 8px;
}
.plug-subtitle {
    font-size: 14px;
    color: #4A5568;
    margin-bottom: 25px;
}
.plug-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}
.plug-item {
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 12px;
    padding: 18px 10px;
    text-align: center;
    transition: all 0.3s ease;
}
.plug-item:hover {
    border-color: #1e7470;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}
.plug-item .flag {
    font-size: 28px;
    display: block;
    margin-bottom: 8px;
}
.plug-item .name {
    font-size: 12px;
    font-weight: 600;
    color: #0B2545;
}
.plug-item .code {
    font-size: 10px;
    color: #6B7A8F;
}
.plug-note {
    margin-top: 20px;
    padding: 12px 20px;
    background: #FFFFFF;
    border-radius: 8px;
    border: 1px dashed #D1D5DB;
    font-size: 13px;
    color: #4A5568;
}
.plug-note i {
    color: #1e7470;
    margin-right: 8px;
}

/* ========== 规格亮点 ========== */
.highlights-section {
    margin-top: 40px;
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 35px 30px;
}
.highlights-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    text-align: center;
    margin-bottom: 25px;
}
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.highlight-item {
    text-align: center;
    padding: 20px 15px;
    background: #F8FAFC;
    border-radius: 12px;
    border: 1px solid #E8EDF2;
    transition: 0.3s;
}
.highlight-item:hover {
    border-color: #1e7470;
}
.highlight-item .icon {
    font-size: 32px;
    margin-bottom: 12px;
    display: block;
}
.highlight-item h4 {
    font-size: 14px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 4px;
}
.highlight-item p {
    font-size: 12px;
    color: #6B7A8F;
    margin: 0;
    line-height: 1.4;
}

/* ========== 应用场景 ========== */
.apps-section {
    margin-top: 40px;
    background: #F8FAFC;
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
    border: 1px solid #E8EDF2;
}
.apps-title {
    font-size: 20px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 18px;
}
.apps-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}
.app-tag {
    background: #FFFFFF;
    padding: 8px 20px;
    border-radius: 30px;
    border: 1px solid #E8EDF2;
    font-size: 13px;
    font-weight: 500;
    color: #0B2545;
    transition: 0.3s;
}
.app-tag:hover {
    border-color: #1e7470;
    background: #E8F4F3;
    color: #1e7470;
}

/* ========== 定制化说明 ========== */
.custom-section {
    margin-top: 40px;
    background: #FFFFFF;
    border: 1px solid #E8EDF2;
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
}
.custom-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: #0B2545;
    margin-bottom: 12px;
}
.custom-section p {
    font-size: 14px;
    color: #4A5568;
    max-width: 600px;
    margin: 0 auto 20px auto;
    line-height: 1.6;
}

/* ============================================================
   PART 7: USB 页面独有样式 (products-usb-style.css)
   ============================================================ */

/* ========== 产品对比表格 (保留一份，已移至 PART 3) ========== */
/* 注：.compare-section, .compare-title, .compare-table, 
   .compare-tag, .selector-section, .selector-grid, 
   .selector-item, .more-models-note 已统一在 PART 3 定义 */

/* ============================================================
   PART 8: Interchangeable + USB 响应式适配
   ============================================================ */

@media (max-width: 1000px) {
    .plug-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 500px;
    }
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* Interchangeable */
    .single-product-card .product-image {
        min-height: 180px;
        padding: 30px 20px;
    }
    .single-product-card .product-image img {
        max-width: 60%;
    }
    .single-product-card .product-info {
        padding: 20px;
    }
    .single-product-card .product-title {
        font-size: 18px;
    }
    .single-product-card .product-specs {
        font-size: 13px;
    }
    .plug-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 340px;
    }
    .highlights-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* USB - 响应式已统一在 PART 5 */
    .compare-section {
        padding: 20px 15px;
    }
    .compare-table {
        font-size: 12px;
        min-width: 500px;
    }
    .compare-table th,
    .compare-table td {
        padding: 8px 10px;
    }
    .selector-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .plug-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    /* 响应式已统一在 PART 5 */
    .compare-title {
        font-size: 17px;
    }
    .selector-section {
        padding: 20px 15px;
    }
    .selector-section h3 {
        font-size: 16px;
    }
    .more-models-note {
        padding: 18px 15px;
    }
    .more-models-note p {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .plug-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .highlights-grid {
        grid-template-columns: 1fr;
    }
}