/* ========================================
   北京荣瑞世纪科技有限公司 - 产品列表页样式
   主题色: #0656ad  辅色: #e9e5e3
   ======================================== */

/* === Page Header === */
.rongrui-page-header {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.rongrui-page-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../image/cropbestbetmiddlecenter-640x427-1896041350.png') center/cover;
    opacity: 0.15;
}

.rongrui-page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(6, 86, 173, 0.9) 0%, rgba(10, 111, 212, 0.7) 100%);
}

.rongrui-page-header-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    text-align: center;
    width: 100%;
}

.rongrui-page-header-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.rongrui-breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
}

.rongrui-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.rongrui-breadcrumb a:hover {
    color: var(--white);
}

.rongrui-breadcrumb-separator {
    color: rgba(255, 255, 255, 0.5);
}

.rongrui-breadcrumb-current {
    color: var(--white);
    font-weight: 500;
}

/* === Product List Section === */
.rongrui-prolist {
    background: var(--secondary-light);
    padding: 60px 0 80px;
}

/* Filter Bar */
.rongrui-prolist-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 2px 12px var(--shadow);
}

.rongrui-prolist-filter-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.rongrui-prolist-filter-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
}

.rongrui-prolist-category-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.rongrui-prolist-category-tab {
    padding: 8px 18px;
    font-size: 14px;
    color: var(--text-light);
    background: var(--secondary-light);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    white-space: nowrap;
}

.rongrui-prolist-category-tab:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.rongrui-prolist-category-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.rongrui-prolist-filter-right {
    flex-shrink: 0;
}

.rongrui-prolist-search {
    display: flex;
    align-items: center;
    background: var(--secondary-light);
    border-radius: 50px;
    padding: 4px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.rongrui-prolist-search:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 86, 173, 0.1);
}

.rongrui-prolist-search-input {
    border: none;
    background: transparent;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text);
    width: 180px;
    outline: none;
}

.rongrui-prolist-search-input::placeholder {
    color: var(--text-light);
}

.rongrui-prolist-search-btn {
    border: none;
    background: var(--primary);
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.rongrui-prolist-search-btn:hover {
    background: var(--primary-dark);
}

/* Mobile Filter */
.rongrui-prolist-mobile-filter {
    display: none;
    margin-bottom: 20px;
}

.rongrui-prolist-filter-toggle {
    width: 100%;
    padding: 14px 20px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
}

.rongrui-prolist-filter-toggle:hover {
    border-color: var(--primary);
}

.rongrui-prolist-filter-arrow {
    transition: transform 0.3s ease;
}

.rongrui-prolist-mobile-filter.active .rongrui-prolist-filter-arrow {
    transform: rotate(180deg);
}

.rongrui-prolist-mobile-categories {
    display: none;
    background: var(--white);
    border-radius: 10px;
    margin-top: 10px;
    padding: 16px;
    box-shadow: 0 4px 20px var(--shadow);
    flex-wrap: wrap;
    gap: 8px;
}

.rongrui-prolist-mobile-filter.active .rongrui-prolist-mobile-categories {
    display: flex;
}

/* Product Grid */
.rongrui-prolist-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

/* Product Card */
.rongrui-prolist-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.rongrui-prolist-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.rongrui-prolist-card-img {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--secondary-light);
}

.rongrui-prolist-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.rongrui-prolist-card:hover .rongrui-prolist-card-img img {
    transform: scale(1.08);
}

.rongrui-prolist-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 86, 173, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.rongrui-prolist-card:hover .rongrui-prolist-card-overlay {
    opacity: 1;
}

.rongrui-prolist-card-btn {
    padding: 10px 24px;
    background: var(--white);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 50px;
    transform: translateY(20px);
    transition: var(--transition);
}

.rongrui-prolist-card:hover .rongrui-prolist-card-btn {
    transform: translateY(0);
}

.rongrui-prolist-card-btn:hover {
    background: var(--primary);
    color: var(--white);
}

.rongrui-prolist-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.rongrui-prolist-card-category {
    display: inline-block;
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rongrui-prolist-card-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.rongrui-prolist-card-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.rongrui-prolist-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--secondary);
}

.rongrui-prolist-card-tag {
    font-size: 12px;
    color: var(--text-light);
    background: var(--secondary-light);
    padding: 4px 10px;
    border-radius: 4px;
}

.rongrui-prolist-card-link {
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.rongrui-prolist-card-link:hover {
    gap: 8px;
}

/* Pagination */
.rongrui-prolist-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.rongrui-prolist-page-btn {
    padding: 10px 20px;
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: var(--transition);
}

.rongrui-prolist-page-btn:hover:not(.disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.rongrui-prolist-page-btn.disabled {
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.rongrui-prolist-page-numbers {
    display: flex;
    gap: 8px;
}

.rongrui-prolist-page-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: var(--transition);
}

.rongrui-prolist-page-number:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.rongrui-prolist-page-number.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.rongrui-prolist-page-ellipsis {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 14px;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 1200px) {
    .rongrui-prolist-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .rongrui-page-header {
        height: 220px;
    }

    .rongrui-page-header-title {
        font-size: 32px;
    }

    .rongrui-prolist-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .rongrui-prolist-filter {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .rongrui-prolist-filter-right {
        width: 100%;
    }

    .rongrui-prolist-search {
        width: 100%;
    }

    .rongrui-prolist-search-input {
        flex: 1;
        width: auto;
    }
}

/* Tablet Small */
@media (max-width: 768px) {
    .rongrui-page-header {
        height: 180px;
    }

    .rongrui-page-header-title {
        font-size: 26px;
    }

    .rongrui-prolist {
        padding: 40px 0 60px;
    }

    .rongrui-prolist-filter {
        display: none;
    }

    .rongrui-prolist-mobile-filter {
        display: block;
    }

    .rongrui-prolist-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .rongrui-prolist-card-img {
        height: 180px;
    }

    .rongrui-prolist-card-body {
        padding: 16px;
    }

    .rongrui-prolist-card-title {
        font-size: 15px;
    }

    .rongrui-prolist-card-desc {
        font-size: 12px;
        -webkit-line-clamp: 2;
    }

    .rongrui-prolist-pagination {
        flex-wrap: wrap;
    }

    .rongrui-prolist-page-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .rongrui-prolist-page-number {
        width: 36px;
        height: 36px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .rongrui-page-header {
        height: 160px;
    }

    .rongrui-page-header-title {
        font-size: 22px;
    }

    .rongrui-breadcrumb {
        font-size: 12px;
    }

    .rongrui-prolist-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .rongrui-prolist-card-img {
        height: 200px;
    }

    .rongrui-prolist-card-title {
        font-size: 16px;
    }

    .rongrui-prolist-pagination {
        gap: 6px;
    }

    .rongrui-prolist-page-numbers {
        gap: 6px;
    }

    .rongrui-prolist-page-number {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }

    .rongrui-prolist-page-ellipsis {
        width: 34px;
        height: 34px;
    }
}

/* Animation for filtered items */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.rongrui-prolist-card.filtered {
    animation: fadeInUp 0.4s ease forwards;
}

/* ========================================
   产品详情页样式
   ======================================== */

/* === Product Detail Section === */
.rongrui-prodetail {
    background: var(--white);
    padding: 60px 0;
}

/* Product Main Info */
.rongrui-prodetail-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

/* Gallery */
.rongrui-prodetail-gallery {
    position: sticky;
    top: 100px;
    align-self: start;
}

.rongrui-prodetail-main-img {
    width: 100%;
    height: 400px;
    background: var(--secondary-light);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.rongrui-prodetail-main-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.rongrui-prodetail-thumbnails {
    display: flex;
    gap: 12px;
}

.rongrui-prodetail-thumb {
    width: 80px;
    height: 80px;
    background: var(--secondary-light);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.rongrui-prodetail-thumb:hover,
.rongrui-prodetail-thumb.active {
    border-color: var(--primary);
}

.rongrui-prodetail-thumb img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Product Info */
.rongrui-prodetail-info {
    padding-top: 10px;
}

.rongrui-prodetail-category {
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.rongrui-prodetail-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.rongrui-prodetail-subtitle {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.rongrui-prodetail-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.rongrui-prodetail-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 30px;
}

.rongrui-prodetail-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
}

.rongrui-prodetail-feature-icon {
    width: 22px;
    height: 22px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.rongrui-prodetail-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.rongrui-prodetail-btn-primary,
.rongrui-prodetail-btn-secondary {
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.rongrui-prodetail-btn-primary {
    background: var(--primary);
    color: var(--white);
}

.rongrui-prodetail-btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.rongrui-prodetail-btn-secondary {
    background: var(--secondary);
    color: var(--text);
    border: 1px solid var(--border);
}

.rongrui-prodetail-btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Product Tabs */
.rongrui-prodetail-tabs {
    margin-bottom: 60px;
}

.rongrui-prodetail-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 30px;
}

.rongrui-prodetail-tab-btn {
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.rongrui-prodetail-tab-btn::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.rongrui-prodetail-tab-btn:hover {
    color: var(--text);
}

.rongrui-prodetail-tab-btn.active {
    color: var(--primary);
}

.rongrui-prodetail-tab-btn.active::after {
    transform: scaleX(1);
}

.rongrui-prodetail-tab-content {
    display: none;
}

.rongrui-prodetail-tab-content.active {
    display: block;
    animation: fadeInUp 0.4s ease;
}

/* Detail Sections */
.rongrui-prodetail-section {
    margin-bottom: 40px;
}

.rongrui-prodetail-section:last-child {
    margin-bottom: 0;
}

.rongrui-prodetail-section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary);
    display: inline-block;
}

/* Highlight Section */
.rongrui-prodetail-highlight {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--secondary-light);
    border-radius: 12px;
    overflow: hidden;
}

.rongrui-prodetail-highlight-img {
    height: 300px;
    overflow: hidden;
}

.rongrui-prodetail-highlight-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rongrui-prodetail-highlight-text {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.rongrui-prodetail-highlight-text h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.rongrui-prodetail-highlight-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* Advantages */
.rongrui-prodetail-advantages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.rongrui-prodetail-advantage {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    transition: var(--transition);
}

.rongrui-prodetail-advantage:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(6, 86, 173, 0.1);
    transform: translateY(-4px);
}

.rongrui-prodetail-advantage-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.rongrui-prodetail-advantage-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.rongrui-prodetail-advantage-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* Scenarios */
.rongrui-prodetail-scenarios {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.rongrui-prodetail-scenario {
    text-align: center;
    padding: 28px 20px;
    background: var(--secondary-light);
    border-radius: 12px;
    transition: var(--transition);
}

.rongrui-prodetail-scenario:hover {
    background: var(--white);
    box-shadow: 0 4px 20px var(--shadow);
}

.rongrui-prodetail-scenario-icon {
    font-size: 36px;
    margin-bottom: 14px;
}

.rongrui-prodetail-scenario-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.rongrui-prodetail-scenario-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Specs Table */
.rongrui-prodetail-specs-table {
    overflow-x: auto;
}

.rongrui-prodetail-specs-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px var(--shadow);
}

.rongrui-prodetail-specs-table th,
.rongrui-prodetail-specs-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.rongrui-prodetail-specs-table th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    font-size: 15px;
    width: 200px;
}

.rongrui-prodetail-specs-table tr:last-child td {
    border-bottom: none;
}

.rongrui-prodetail-specs-table tr:hover td {
    background: var(--secondary-light);
}

.rongrui-prodetail-specs-table td:first-child {
    font-weight: 500;
    color: var(--text);
}

.rongrui-prodetail-specs-table td:last-child {
    color: var(--text-light);
}

/* Downloads */
.rongrui-prodetail-downloads {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.rongrui-prodetail-download-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
}

.rongrui-prodetail-download-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(6, 86, 173, 0.1);
}

.rongrui-prodetail-download-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.rongrui-prodetail-download-info {
    flex: 1;
}

.rongrui-prodetail-download-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.rongrui-prodetail-download-info p {
    font-size: 13px;
    color: var(--text-light);
}

.rongrui-prodetail-download-btn {
    padding: 10px 20px;
    background: var(--secondary);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    border-radius: 50px;
    transition: var(--transition);
    white-space: nowrap;
}

.rongrui-prodetail-download-btn:hover {
    background: var(--primary);
    color: var(--white);
}

/* Contact Form Section */
.rongrui-prodetail-contact {
    background: var(--dark);
    padding: 60px 0;
}

.rongrui-prodetail-contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.rongrui-prodetail-contact-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.rongrui-prodetail-contact-info > p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: 30px;
}

.rongrui-prodetail-contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.rongrui-prodetail-contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--white);
}

.rongrui-prodetail-contact-method-icon {
    font-size: 28px;
}

.rongrui-prodetail-contact-method strong {
    font-size: 15px;
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.rongrui-prodetail-contact-method p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}

.rongrui-prodetail-contact-form {
    background: var(--white);
    padding: 36px;
    border-radius: 16px;
}

.rongrui-prodetail-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.rongrui-prodetail-form-group {
    margin-bottom: 20px;
}

.rongrui-prodetail-form-group.rongrui-prodetail-form-full {
    margin-bottom: 20px;
}

.rongrui-prodetail-form-group input,
.rongrui-prodetail-form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 14px;
    color: var(--text);
    background: var(--secondary-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

.rongrui-prodetail-form-group input:focus,
.rongrui-prodetail-form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 86, 173, 0.1);
}

.rongrui-prodetail-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.rongrui-prodetail-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.rongrui-prodetail-form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-light);
    cursor: pointer;
}

.rongrui-prodetail-form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.rongrui-prodetail-form-checkbox a {
    color: var(--primary);
}

.rongrui-prodetail-form-submit {
    padding: 14px 36px;
    background: #e67e22;
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.rongrui-prodetail-form-submit:hover {
    background: #d35400;
    transform: translateY(-2px);
}

/* Related Products */
.rongrui-prodetail-related {
    background: var(--secondary-light);
    padding: 60px 0;
}

.rongrui-prodetail-related-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.rongrui-prodetail-related-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.rongrui-prodetail-related-more {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
}

.rongrui-prodetail-related-more:hover {
    text-decoration: underline;
}

.rongrui-prodetail-related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.rongrui-prodetail-related-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.rongrui-prodetail-related-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.rongrui-prodetail-related-img {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: var(--secondary-light);
}

.rongrui-prodetail-related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.rongrui-prodetail-related-card:hover .rongrui-prodetail-related-img img {
    transform: scale(1.05);
}

.rongrui-prodetail-related-info {
    padding: 20px;
}

.rongrui-prodetail-related-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.rongrui-prodetail-related-info p {
    font-size: 13px;
    color: var(--text-light);
}

/* ========================================
   Product Detail Responsive
   ======================================== */

@media (max-width: 1200px) {
    .rongrui-prodetail-related-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .rongrui-prodetail-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .rongrui-prodetail-gallery {
        position: static;
    }

    .rongrui-prodetail-main-img {
        height: 350px;
    }

    .rongrui-prodetail-highlight {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-advantages {
        grid-template-columns: repeat(2, 1fr);
    }

    .rongrui-prodetail-scenarios {
        grid-template-columns: repeat(2, 1fr);
    }

    .rongrui-prodetail-contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .rongrui-prodetail-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .rongrui-prodetail {
        padding: 40px 0;
    }

    .rongrui-prodetail-title {
        font-size: 24px;
    }

    .rongrui-prodetail-features {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-actions {
        flex-direction: column;
    }

    .rongrui-prodetail-btn-primary,
    .rongrui-prodetail-btn-secondary {
        justify-content: center;
    }

    .rongrui-prodetail-tab-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .rongrui-prodetail-tab-btn {
        padding: 14px 24px;
        white-space: nowrap;
    }

    .rongrui-prodetail-advantages {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-scenarios {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-downloads {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .rongrui-prodetail-form-footer {
        flex-direction: column;
        gap: 16px;
    }

    .rongrui-prodetail-form-submit {
        width: 100%;
    }

    .rongrui-prodetail-related {
        padding: 40px 0;
    }

    .rongrui-prodetail-related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .rongrui-prodetail-related-img {
        height: 140px;
    }

    .rongrui-prodetail-section-title {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .rongrui-prodetail-title {
        font-size: 20px;
    }

    .rongrui-prodetail-main-img {
        height: 280px;
    }

    .rongrui-prodetail-thumbnails {
        gap: 8px;
    }

    .rongrui-prodetail-thumb {
        width: 60px;
        height: 60px;
    }

    .rongrui-prodetail-actions {
        gap: 12px;
    }

    .rongrui-prodetail-btn-primary,
    .rongrui-prodetail-btn-secondary {
        padding: 12px 24px;
        font-size: 14px;
    }

    .rongrui-prodetail-related-grid {
        grid-template-columns: 1fr;
    }

    .rongrui-prodetail-related-img {
        height: 180px;
    }

    .rongrui-prodetail-contact {
        padding: 40px 0;
    }

    .rongrui-prodetail-contact-form {
        padding: 24px;
    }
}