/* ===== 重置与基础 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Source Han Sans SC", "HanHei SC", "PingFang SC",
                 "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei",
                 "微软雅黑", Arial, sans-serif;
    color: #333;
    background: #fff;
    line-height: 1.6;
}

.container {
    width: 1400px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ===== 顶部栏 ===== */
.top-bar {
    background: #f4f5f9;
    height: 40px;
    line-height: 40px;
    font-size: 13px;
    color: #666;
}

/* ===== 主导航 ===== */
.header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    height: 70px;
}

.logo {
    flex-shrink: 0;
}

.logo img {
    height: 50px;
    width: auto;
}

.main-nav {
    margin-left: 40px;
}

.main-nav ul {
    display: flex;
    gap: 36px;
}

.main-nav a {
    display: block;
    padding: 22px 0;
    font-size: 15px;
    color: #333;
    position: relative;
    transition: color 0.2s;
}

.main-nav a:hover,
.main-nav .active a {
    color: #2659cf;
}

.main-nav .active a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: #2659cf;
    border-radius: 1px;
}

/* ===== Banner 轮播 ===== */
.banner {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a3a8f 0%, #2659cf 50%, #4a7aff 100%);
}

.banner-slides {
    width: 100%;
    height: 100%;
    position: relative;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.banner-slide:nth-child(1) {
    background: linear-gradient(135deg, #1a3a8f 0%, #2659cf 50%, #4a7aff 100%);
}

.banner-slide:nth-child(2) {
    background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}

.banner-slide:nth-child(3) {
    background: linear-gradient(135deg, #2659cf 0%, #5b8def 100%);
}

.slide-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 4px;
}

.slide-content p {
    font-size: 20px;
    opacity: 0.9;
}

.banner-prev, .banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.2s;
    z-index: 10;
}

.banner-prev:hover, .banner-next:hover {
    background: rgba(255,255,255,0.4);
}

.banner-prev { left: 20px; }
.banner-next { right: 20px; }

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.banner-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.2s;
}

.banner-dots .dot.active {
    opacity: 1;
    background: #fff;
}

/* ===== 通用区块 ===== */
.section {
    padding: 60px 0;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: #222;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #2659cf;
    margin: 12px auto 0;
    border-radius: 2px;
}

.bg-light {
    background: #f8f9fc;
}

/* ===== 关于我们 ===== */
.about-content {
    max-width: 1100px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 50px;
}

.about-text p {
    margin-bottom: 12px;
}

.about-stats {
    display: flex;
    justify-content: space-around;
    border-top: 1px solid #eee;
    padding-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: #2659cf;
    line-height: 1.2;
}

.stat-number::after {
    content: '+';
    font-size: 28px;
}

.stat-label {
    font-size: 14px;
    color: #888;
    margin-top: 6px;
}

/* ===== 产品展示区块 ===== */
.product-section {
    position: relative;
}

.product-swiper {
    padding: 0 40px 40px;
}

.product-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    padding: 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(38, 89, 207, 0.12);
}

.bg-light .product-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #e8edfa 0%, #cfd8f7 100%);
    border-radius: 6px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #2659cf;
}

.product-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.product-card p {
    font-size: 13px;
    color: #888;
    margin-bottom: 16px;
    line-height: 1.5;
}

.btn-view {
    display: inline-block;
    padding: 6px 20px;
    background: #2659cf;
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    transition: background 0.2s;
}

.btn-view:hover {
    background: #1d47a8;
}

/* 左右分栏布局 */
.split-layout {
    display: flex;
    gap: 24px;
}

.split-left {
    flex: 1.5;
}

.split-right {
    flex: 1;
}

.feature-swiper {
    border-radius: 8px;
    overflow: hidden;
}

.feature-card {
    background: #fff;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
}

.mini-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.mini-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.mini-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.mini-card h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #333;
}

.mini-card p {
    font-size: 12px;
    color: #888;
}

/* Swiper 导航 */
.swiper-button-next,
.swiper-button-prev {
    color: #2659cf;
}

/* ===== 应用发布 ===== */
.publish-section {
    position: relative;
}

.publish-desc {
    text-align: center;
    font-size: 15px;
    color: #666;
    margin-bottom: 30px;
}

.publish-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.publish-form {
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    flex: 1;
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #333;
}

.publish-form input,
.publish-form select,
.publish-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.publish-form input:focus,
.publish-form select:focus,
.publish-form textarea:focus {
    outline: none;
    border-color: #2659cf;
}

.publish-form textarea {
    resize: vertical;
}

/* ===== 登录 / 注册 ===== */
.auth-wrapper {
    max-width: 420px;
    margin: 0 auto;
}

.auth-form {
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.register-section {
    background: #f8f9fc;
}

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

.auth-form label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #333;
}

.auth-form input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.auth-form input:focus {
    outline: none;
    border-color: #2659cf;
}

.auth-link {
    text-align: center;
    font-size: 13px;
    color: #888;
    margin-top: 16px;
}

.auth-link a {
    color: #2659cf;
}

.btn-code {
    padding: 10px 16px;
    background: #fff;
    border: 1px solid #2659cf;
    color: #2659cf;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.btn-code:hover {
    background: #2659cf;
    color: #fff;
}

/* ===== 联系我们 ===== */
.contact-section {
    padding: 60px 0;
}

.contact-layout {
    display: flex;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-info {
    flex: 1;
}

.contact-item {
    margin-bottom: 24px;
}

.contact-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #333;
}

.contact-item p {
    font-size: 14px;
    color: #666;
}

.contact-form {
    flex: 1;
    background: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.contact-form h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #333;
}

.contact-form .form-group {
    margin-bottom: 16px;
}

.contact-form label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #333;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #2659cf;
}

.contact-form textarea {
    resize: vertical;
}

.btn-submit {
    display: inline-block;
    padding: 10px 32px;
    background: #2659cf;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
}

.btn-submit:hover {
    background: #1d47a8;
}

/* ===== 页脚 ===== */
.footer {
    background: #1a1a2e;
    color: #aaa;
    padding: 30px 0;
}

.footer-content {
    text-align: center;
}

.footer-links {
    margin-bottom: 16px;
}

.footer-links a {
    color: #ccc;
    margin: 0 12px;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #2659cf;
}

.footer-info p {
    font-size: 13px;
    margin-bottom: 4px;
}

.footer-info a {
    color: #888;
}

.footer-info a:hover {
    color: #2659cf;
}

/* ===== 弹窗 ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    width: 400px;
    max-width: 90%;
    position: relative;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 24px;
    cursor: pointer;
    color: #999;
}

.modal h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #333;
}

.modal p {
    font-size: 13px;
    color: #666;
    margin-bottom: 16px;
}

.modal input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.modal input:focus {
    outline: none;
    border-color: #2659cf;
}

/* ===== 首页分类区块 ===== */
.index-category {
    padding: 50px 0;
    position: relative;
}

/* 分类头部 */
.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.category-title {
    font-size: 22px;
    font-weight: 700;
    color: #222;
    margin: 0;
    position: relative;
}

.category-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: #2659cf;
    margin-top: 8px;
    border-radius: 2px;
}

.category-nav {
    display: flex;
    gap: 8px;
}

.nav-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    color: #666;
    transition: all 0.2s;
}

.nav-arrow:hover {
    background: #2659cf;
    border-color: #2659cf;
    color: #fff;
}

/* 分类横向轮播 */
.carousel-wrap {
    overflow: hidden;
    padding: 0 10px 10px;
    position: relative;
}

.carousel-track {
    display: flex;
    gap: 16px;
    transition: transform 0.4s ease;
    padding: 0 0 10px;
}

.carousel-track .app-card,
.carousel-track .designer-card {
    flex-shrink: 0;
    width: calc(20% - 13px);
    min-width: 220px;
}

@media (max-width: 1400px) {
    .carousel-track .app-card,
    .carousel-track .designer-card {
        width: calc(25% - 13px);
    }
}
@media (max-width: 1100px) {
    .carousel-track .app-card,
    .carousel-track .designer-card {
        width: calc(33.33% - 11px);
    }
}
@media (max-width: 800px) {
    .carousel-track .app-card,
    .carousel-track .designer-card {
        width: calc(50% - 8px);
    }
}
@media (max-width: 500px) {
    .carousel-track .app-card,
    .carousel-track .designer-card {
        width: 100%;
    }
}

/* 应用卡片（能源与资源风格） */
.app-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.app-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(38, 89, 207, 0.12);
}

.app-card-img {
    display: block;
    height: 160px;
    overflow: hidden;
}

.app-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.app-card-body {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-card-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: #2659cf;
    color: #fff;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    transition: background 0.2s;
    flex-shrink: 0;
    margin-left: 12px;
}

.app-card-btn:hover {
    background: #1d47a8;
}

/* ===== 批发与零售布局 ===== */
.retail-layout {
    display: flex;
    gap: 24px;
}

.retail-left {
    flex: 1.5;
    position: relative;
}

.feature-slider {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    height: 520px;
}

.feature-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.feature-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.feature-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
}

.feature-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2659cf;
    opacity: 0.3;
    cursor: pointer;
    transition: opacity 0.2s;
}

.feature-dots .dot.active {
    opacity: 1;
}

.feature-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

.feature-nav .nav-arrow {
    background: transparent;
    border-color: #ccc;
}

.feature-nav .nav-arrow:hover {
    background: #2659cf;
    border-color: #2659cf;
}

.feature-card-v {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.feature-card-top {
    height: 280px;
    overflow: hidden;
}

.feature-card-top img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.feature-card-bottom {
    padding: 20px 24px;
}

.feature-card-bottom h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.feature-card-bottom h3 a {
    color: #333;
    transition: color 0.2s;
}

.feature-card-bottom h3 a:hover {
    color: #2659cf;
}

.feature-card-bottom p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 右侧迷你网格 */
.retail-right {
    flex: 1;
}

.retail-right .mini-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.retail-right .mini-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.retail-right .mini-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.retail-right .mini-card img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    display: block;
}

.retail-right .mini-card p {
    padding: 10px 12px;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 信息卡片（物流仓储专区用） */
.mini-card-info {
    background: #fff;
    border-radius: 8px;
    padding: 24px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.mini-card-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.mini-card-info p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* ===== 食品饮料设计师风格卡片 ===== */
.designer-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.designer-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(38, 89, 207, 0.12);
}

.designer-card-top {
    height: 150px;
    overflow: hidden;
}

.designer-card-top img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.designer-card-body {
    padding: 16px 20px;
}

.designer-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.designer-card-body p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.designer-card-btn {
    display: inline-block;
    margin-top: 10px;
    padding: 6px 16px;
    background: #2659cf;
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
    transition: background 0.2s;
}

.designer-card-btn:hover {
    background: #1a47b8;
}

.designer-card-btn span {
    margin-right: 4px;
}

.designer-card-body h3 a {
    color: #333;
    text-decoration: none;
    transition: color 0.2s;
}

.designer-card-body h3 a:hover {
    color: #2659cf;
}

.designer-card-top a {
    display: block;
}

/* ===== 产品图片适配 ===== */
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
    display: block;
}

/* ===== 分类筛选 ===== */
.category-filter {
    background: #f8f9fc;
    border-bottom: 1px solid #e8e8e8;
    padding: 16px 0;
}

.filter-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    white-space: nowrap;
}

.filter-link {
    display: inline-block;
    padding: 6px 16px;
    font-size: 13px;
    color: #666;
    border-radius: 4px;
    transition: all 0.2s;
}

.filter-link:hover,
.filter-link.active {
    background: #2659cf;
    color: #fff;
}

/* ===== 应用专区 ===== */
.products-section {
    padding: 40px 0 60px;
}

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

.products-grid .product-card {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

/* ===== 面包屑 ===== */
.breadcrumb {
    background: #f8f9fc;
    padding: 12px 0;
    font-size: 13px;
    color: #888;
    border-bottom: 1px solid #e8e8e8;
}

.breadcrumb a {
    color: #666;
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: #2659cf;
}

.breadcrumb span + a {
    margin-left: 4px;
}

/* ===== 详情页 ===== */
.detail-section {
    padding: 40px 0;
}

.detail-layout {
    display: flex;
    gap: 40px;
}

.detail-image {
    flex: 1;
    max-width: 500px;
}

.detail-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.detail-info {
    flex: 1;
}

.detail-title {
    font-size: 24px;
    font-weight: 700;
    color: #222;
    margin-bottom: 12px;
}

.detail-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
}

.detail-meta {
    margin-bottom: 24px;
}

.meta-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    font-size: 14px;
}

.meta-label {
    color: #999;
    min-width: 80px;
    font-size: 13px;
}

.meta-value {
    color: #333;
    font-weight: 500;
}

.price-value {
    color: #e8602c;
    font-size: 16px;
    font-weight: 700;
}

.publisher-info {
    background: #f8f9fc;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 24px;
}

.publisher-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.publisher-info .meta-item {
    margin-bottom: 6px;
}

.btn-contact {
    padding: 12px 40px;
    background: #2659cf;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-contact:hover {
    background: #1d47a8;
}

/* ===== 详情 Tab ===== */
.detail-tabs-section {
    padding: 0 0 60px;
}

.detail-tabs {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.tab-nav {
    display: flex;
    border-bottom: 1px solid #e8e8e8;
}

.tab-btn {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    font-size: 15px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: #2659cf;
}

.tab-btn.active {
    color: #2659cf;
    font-weight: 600;
    border-bottom-color: #2659cf;
}

.tab-pane {
    display: none;
    padding: 30px;
}

.tab-pane.active {
    display: block;
}

.tab-pane-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

/* 参数表 */
.param-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
}

.param-table td {
    padding: 10px 16px;
    border: 1px solid #e8e8e8;
    font-size: 14px;
}

.param-table td:first-child {
    width: 160px;
    background: #f8f9fc;
    color: #666;
    font-weight: 500;
}

.param-table td:last-child {
    color: #333;
}

/* 文档列表 */
.doc-list {
    list-style: none;
}

.doc-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
    cursor: pointer;
}

.doc-list li:hover {
    background: #f8f9fc;
}

.doc-list li span {
    color: #333;
}

.doc-list li i {
    color: #2659cf;
    font-style: normal;
}

/* 价格说明 */
.pricing-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 1px solid #e8e8e8;
}

.pricing-tab {
    padding: 10px 24px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.pricing-tab:hover {
    color: #2659cf;
}

.pricing-tab.active {
    color: #2659cf;
    font-weight: 600;
    border-bottom-color: #2659cf;
}

.price-tables h4 {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.price-table th,
.price-table td {
    padding: 10px 12px;
    border: 1px solid #e8e8e8;
    font-size: 13px;
    text-align: center;
}

.price-table th {
    background: #f8f9fc;
    color: #333;
    font-weight: 600;
}

.price-table td {
    color: #555;
}

.price-table .price-val {
    color: #e8602c;
    font-weight: 600;
}

.price-table td p {
    margin: 2px 0;
    font-size: 12px;
}

/* ===== 相关产品 ===== */
.related-section {
    padding: 40px 0 60px;
    background: #f8f9fc;
}

.related-section .products-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .products-grid,
    .related-section .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .products-grid,
    .related-section .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .detail-layout {
        flex-direction: column;
    }
    .detail-image {
        max-width: 100%;
    }
}

@media (max-width: 600px) {
    .products-grid,
    .related-section .products-grid {
        grid-template-columns: 1fr;
    }
}