/* ============================================
   企业网站首页样式 - 西安中钛
   ============================================ */

/* ============================================
   CSS Reset & Base
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   容器
   ============================================ */
.container {
    max-width: 1600px;
    width: 96%;
    margin: 0 auto;
    padding: 0 15px;
}

@media (min-width: 1600px) {
    .container {
        width: 1600px;
    }
}

/* ============================================
   导航区
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background-color 0.3s ease;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    flex-shrink: 0;
}

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

.nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    margin: 0 50px 0 0;
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-list li a {
    display: block;
    padding: 8px 0;
    color: #fff;
    font-size: 16px;
    position: relative;
    transition: color 0.3s ease;
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: #e40000;
    transition: width 0.3s ease;
}

.nav-list li a:hover::after,
.nav-list li a.active::after {
    width: 100%;
}

.nav-list li a:hover,
.nav-list li a.active {
    color: #fff;
}

.has-submenu {
    position: relative;
}

.has-submenu > .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 150px;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    border-radius: 4px;
    z-index: 100;
}

.has-submenu:hover > .submenu {
    display: block;
}

.submenu li a {
    display: block;
    padding: 10px 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    text-align: center;
    transition: all 0.3s ease;
}

.submenu li a:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.header-icons {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0;
}

.icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 15px;
    transition: opacity 0.3s ease;
}

.icon-link:hover {
    opacity: 0.7;
}

.divider {
    width: 1px;
    height: 24px;
    background-color: rgba(255, 255, 255, 0.5);
}

.icon-item {
    position: relative;
    overflow: visible;
}

.icon-popup {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    min-width: 200px;
    overflow: visible;
}

.icon-item:hover .icon-popup {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.icon-popup::before {
    content: '';
    position: absolute;
    top: -8px;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(255, 255, 255, 0.95);
}

.icon-link img {
    height: 24px;
    width: 24px;
    transition: filter 0.3s ease;
}

.icon-item:hover .icon-link img {
    filter: brightness(0) saturate(100%) invert(14%) sepia(100%) saturate(7500%) hue-rotate(358deg) brightness(99%) contrast(107%);
}

.search-popup {
    padding: 15px;
}

.search-form {
    display: flex;
    gap: 10px;
}

.search-form input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-form input:focus {
    border-color: #e40000;
}

.search-form button {
    width: 40px;
    height: 40px;
    background-color: #e40000;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.search-form button:hover {
    background-color: #e40000;
}

.search-form button img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.phone-popup {
    padding: 20px;
    text-align: center;
}

.popup-title {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.popup-content {
    font-size: 18px;
    color: #e40000;
    font-weight: bold;
}

.qr-popup {
    padding: 20px;
    text-align: center;
}

.qr-code {
    width: 150px;
    height: 150px;
    margin: 10px auto 0;
    border: 1px dashed #ddd;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.qr-code img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: filter 0.3s ease;
}

.qr-code:hover img {
    filter: brightness(0) saturate(100%) invert(14%) sepia(100%) saturate(7500%) hue-rotate(358deg) brightness(99%) contrast(107%);
}

.email-popup {
    padding: 20px;
    text-align: center;
}

.email-popup a {
    display: block;
    color: #e40000;
    font-size: 14px;
    margin-top: 10px;
    word-break: break-all;
}

.email-popup a:hover {
    text-decoration: underline;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s ease;
}

/* ============================================
   轮播图区域
   ============================================ */
.banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 500px;
    overflow: hidden;
}

.swiper-container {
    width: 100%;
    height: 100%;
}

.swiper-wrapper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    width: 100%;
    height: 100%;
}

.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-container > .swiper-pagination {
    position: absolute;
    bottom: 30px !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    z-index: 10;
    display: flex !important;
    gap: 8px;
    justify-content: center;
}

.swiper-pagination .swiper-pagination-bullet {
    width: 30px;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0 !important;
}

.swiper-pagination .swiper-pagination-bullet-active {
    background-color: #fff;
    width: 50px;
}

.swiper-button-prev,
.swiper-button-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.swiper-button-prev {
    left: 30px;
}

.swiper-button-next {
    right: 30px;
}

.swiper-button-prev:hover,
.swiper-button-next:hover {
    background-color: rgba(0, 0, 0, 0.5);
}

.swiper-button-prev::after,
.swiper-button-next::after {
    content: '';
    width: 10px;
    height: 10px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
}

.swiper-button-prev::after {
    transform: rotate(-135deg);
    margin-left: 5px;
}

.swiper-button-next::after {
    transform: rotate(45deg);
    margin-right: 5px;
}

/* ============================================
   产品中心区域
   ============================================ */
.product-center {
    background-color: #e6e6e6;
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 30px;
}

.section-title {
    font-size: 28px;
    color: #333;
    font-weight: bold;
    margin-bottom: 8px;
}

.section-subtitle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.section-subtitle .text {
    font-size: 16px;
    color: #333;
}

.section-subtitle .line {
    width: 30px;
    height: 1px;
    background: linear-gradient(to right, transparent, #333);
}

.section-subtitle .line:last-child {
    background: linear-gradient(to left, transparent, #333);
}

.product-tabs {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    width: 100%;
}

.tab-item {
    color: #333;
    font-size: 18px;
    padding: 12px 24px;
    transition: color 0.3s ease;
}

.tab-item:hover,
.tab-item.active {
    color: #e40000;
}

.product-tabs .divider {
    width: 1px;
    height: 30px;
    background: linear-gradient(to bottom, transparent, #999, transparent);
}

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

.product-card {
    display: block;
    background-color: #fff;
    overflow: hidden;
    transition: transform 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.product-card:hover {
    transform: translateY(-5px);
    background-color: #e40000;
}

.product-image {
    width: 100%;
    padding-top: 75%;
    position: relative;
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.product-name {
    font-size: 16px;
    color: #333;
    font-weight: normal;
    margin: 0;
}

.product-arrow {
    width: 28px;
    height: 28px;
    border: 1px solid #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #000;
    flex-shrink: 0;
    margin-left: 10px;
    line-height: 1;
}

.product-card:hover .product-name {
    color: #fff;
}

.product-card:hover .product-arrow {
    border-color: #fff;
    color: #fff;
}

/* ============================================
   关于我们区域
   ============================================ */
.about-section {
    background-image: url('../img/jjbj.jpg');
    background-size: cover;
    background-position: center;
    padding: 0;
}

.about-title {
    font-size: 28px;
    color: #fff;
    margin: 0 0 30px 0;
    padding: 0;
}

.about-inner {
    background-image: url('../img/jjl.jpg');
    background-size: auto;
    background-position: left center;
    background-repeat: no-repeat;
    padding: 60px 0;
    width: 100%;
    overflow: hidden;
}

.about-video {
    float: left;
    width: calc(50% - 20px);
    margin-right: 20px;
}

.about-video video {
    width: 100%;
    height: auto;
    background: #000;
    object-fit: contain;
    playsinline: true;
    webkit-playsinline: true;
}

.about-text {
    float: left;
    width: calc(50% - 20px);
    margin-left: 20px;
}

.about-text h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    margin-top: 30px;
}

.about-text p {
    font-size: 16px;
    color: #000;
    line-height: 1.8;
}

.about-btn {
    display: inline-block;
    margin-top: 30px;
    padding: 12px 30px;
    background-color: #e40000;
    color: #fff;
    border-radius: 50px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.about-btn:hover {
    background-color: #c70000;
}

.about-btn span {
    margin-left: 5px;
}

.about-stats {
    display: flex;
    justify-content: flex-end;
    width: 60%;
    margin-left: auto;
    padding: 40px 0 0px;
}

.stat-item {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    margin-left: 60px;
    text-align: center;
}

.stat-item:first-child {
    margin-left: 0;
}

.stat-num {
    font-size: 48px;
    font-weight: bold;
    color: #000;
    line-height: 1;
    text-align: center;
}

.stat-unit {
    font-size: 20px;
    color: #000;
    margin-left: 2px;
    line-height: 1;
}

.stat-label {
    width: 100%;
    font-size: 14px;
    color: #000;
    font-weight: bold;
    margin-top: 8px;
}

/* ============================================
   主内容区域
   ============================================ */
.main-content {
    padding: 60px 0;
    min-height: 500px;
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* ============================================
   响应式设计
   ============================================ */

/* 超大屏幕 */
@media (min-width: 1200px) {
    .nav-list {
        gap: 50px;
    }
    
    .nav-list li a {
        font-size: 16px;
    }
}

/* 1199px以下隐藏图标，轮播图高度 */
@media (max-width: 1199px) {
    .header-icons {
        display: none;
    }
    
    .banner {
        height: 600px;
        min-height: 600px;
    }
}

/* 平板设备 */
@media (max-width: 991px) {
    .header-inner {
        height: 70px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .banner {
        height: 500px;
        min-height: 500px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
        text-align: center;
        width: 100%;
    }
    
    .nav-list li a {
        display: block;
        padding: 15px 20px;
        font-size: 16px;
    }
    
    .nav-list li a::after {
        display: none;
    }
    
    .nav-list > li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .has-submenu {
        position: relative;
    }
    
    .has-submenu > a {
        position: relative;
    }
    
    .submenu {
        display: none;
        position: relative !important;
        top: auto !important;
        left: auto !important;
        transform: none !important;
        background-color: rgba(0, 0, 0, 0.5);
        width: 100%;
    }
    
    .has-submenu.active > .submenu {
        display: block;
    }
    
    .submenu li a {
        padding: 12px 20px 12px 40px;
        font-size: 14px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* 手机设备 */
@media (max-width: 767px) {
    .header-inner {
        height: 60px;
    }
    
    .logo img {
        height: 35px;
    }
    
    .banner {
        height: 250px;
        min-height: 250px;
    }
    
    .nav {
        top: 60px;
    }
    
    .swiper-button-prev,
    .swiper-button-next {
        display: none;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .section-subtitle .text {
        font-size: 14px;
    }
    
    .section-subtitle .line {
        width: 20px;
    }
    
    .product-tabs {
        gap: 5px;
    }
    
    .tab-item {
        font-size: 16px;
        padding: 10px 14px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .product-info {
        padding: 12px 15px;
    }
    
    .product-name {
        font-size: 14px;
    }
    
    .about-inner {
        background-image: none;
    }
    
    .about-title {
        color: #000;
    }
    
    .about-video,
    .about-text {
        float: none;
        width: 100%;
        margin: 0;
    }
    
    .about-stats {
        flex-wrap: wrap;
        width: 100%;
        justify-content: space-between;
        padding: 30px 0 40px;
    }
    
    .stat-item {
        width: 23%;
        margin-left: 0;
        margin-bottom: 0;
        text-align: center;
    }
    
    .stat-item:nth-child(2),
    .stat-item:nth-child(4) {
        text-align: center;
    }
    
    .stat-num {
        font-size: 24px;
    }
    
    .stat-unit {
        font-size: 14px;
    }
    
    .stat-label {
        font-size: 12px;
    }
}

/* 荣誉资质区域 */
.honor-section {
    background-color: #e6e6e6;
    padding: 60px 0;
}

.honor-scroll-wrapper {
    overflow: hidden;
    margin-top: 40px;
}

.honor-scroll {
    display: flex;
    animation: scroll 20s linear infinite;
}

.honor-item {
    flex-shrink: 0;
    width: auto;
    margin-right: 20px;
    text-align: center;
}

.honor-image {
    height: 280px;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.honor-image img {
    height: 100%;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.honor-title {
    display: block;
    margin-top: 15px;
    font-size: 14px;
    color: #333;
}

/* 应用领域区域 */
.applications-section {
    padding: 0;
    background-color: #fff;
}

.applications-slider {
    position: relative;
    width: 100%;
}

.application-slide {
    position: relative;
    width: 100%;
    height: 900px;
    overflow: hidden;
    display: none;
}

.application-slide.active {
    display: block;
}

.application-bg {
    width: 100%;
    height: 100%;
}

.application-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.application-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: rgba(0, 7, 140, 0.5);
    display: flex;
    align-items: center;
    z-index: 2;
}

.application-overlay.animate {
    animation: appSlideIn 0.8s ease forwards;
}

@keyframes appSlideIn {
    from { width: 0; }
    to { width: 50%; }
}

.application-content {
    display: flex;
    flex-direction: column;
    padding: 40px 50px;
    color: #fff;
    opacity: 0;
    transform: translateX(-20px);
    overflow-wrap: break-word;
    position: relative;
    z-index: 3;
}

.application-arrows {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

@media screen and (min-width: 1601px) {
    .application-content {
        padding-left: calc((100vw - 1600px) / 2 + 20px);
    }
}

.application-content.animate {
    animation: appFadeIn 0.5s ease 0.3s forwards;
}

@keyframes appFadeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.application-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
}

.application-desc {
    font-size: 20px;
    line-height: 1.8;
    opacity: 0.9;
}

.application-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.7);
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.application-arrow:hover {
    background-color: transparent;
    border-color: rgba(255,255,255,1);
    border-width: 3px;
}

@media screen and (max-width: 768px) {
    .application-content {
        padding: 30px 20px;
    }

    .application-slide {
        height: 500px;
    }

    .application-title {
        font-size: 22px;
    }

    .application-desc {
        font-size: 17px;
    }

    .application-overlay.animate {
        animation: appSlideInMobile 0.8s ease forwards;
    }

    @keyframes appSlideInMobile {
        from { width: 0; }
        to { width: 60%; }
    }
}

@media screen and (max-width: 480px) {
    .application-content {
        padding: 24px 16px;
    }

    .application-title {
        font-size: 18px;
    }

    .application-desc {
        font-size: 15px;
    }

    .application-slide {
        height: 420px;
    }

    .stat-num {
        font-size: 20px;
    }
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .honor-image {
        height: 160px;
    }

    .honor-scroll {
        animation: none;
    }

    .product-tabs .tab-item.active {
        display: none;
    }

    .product-tabs .tab-item.active + .divider {
        display: none;
    }

    .product-tabs {
        gap: 0;
    }

    .tab-item {
        font-size: 14px;
        padding: 8px 10px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-arrow {
        display: none;
    }
    
    .about-inner {
        background-image: none;
    }
    
    .about-title {
        color: #000;
    }
    
    .about-video,
    .about-text {
        float: none;
        width: 100%;
        margin: 0;
    }
}

/* ═══════ 新闻资讯区域 ═════════════════════════════════════ */
.news-section {
    position: relative;
    width: 100%;
    background-color: #e6e6e6;
    padding: 60px 0;
    overflow-x: hidden;
    overflow-y: visible;
}

/* 新闻主体 */
.news-body {
    display: flex;
    gap: 0;
    margin-top: 30px;
    height: auto;
    min-height: 480px;
}

/* 新闻标签 */
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
}
.news-tab {
    padding: 10px 40px;
    border-radius: 25px;
    border: 1px solid #e40000;
    color: #e40000;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s;
}
.news-tab:hover,
.news-tab.active {
    background: #e40000;
    color: #fff;
}

/* 左侧图片 */
.news-image {
    flex: 0 0 40%;
    display: flex;
    height: auto;
    position: relative;
}
.news-image img {
    width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
    display: block;
}
.news-image-date {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: #e40000;
    color: #fff;
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 14px;
}

/* 右侧卡片 */
.news-card-wrapper {
    flex: 0 0 70%;
    margin-left: -10%;
    margin-right: -2%;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: visible;
    padding-top: 80px;
    padding-left: 10px;
    padding-right: 0;
}
.news-card-viewport {
    overflow: visible;
    background: transparent;
    box-shadow: none;
    flex: none;
    width: 100%;
}
.news-card-track {
    display: flex;
    gap: 20px;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    will-change: transform;
    align-items: stretch;
}
.news-card {
    flex: 0 0 calc(40% - 16px);
    max-width: calc(40% - 16px);
    display: flex;
    flex-direction: column;
    background: #fff;
    border: none;
    padding: 40px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
    text-decoration: none;
    color: inherit;
}
.news-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #000;
    line-height: 1.4;
    letter-spacing: 0.05em;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 30px;
}
.news-card-desc {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.75;
    letter-spacing: 0.04em;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* 卡片箭头按钮 */
.news-card-arrow {
    width: 36px;
    height: 36px;
    border: 1px solid #e40000;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e40000;
    margin-top: 50px;
    margin-left: auto;
    flex-shrink: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.news-card-arrow svg {
    width: 18px;
    height: 18px;
}
.news-card:hover .news-card-arrow {
    background-color: #e40000;
    color: #fff;
}

/* 切换按钮 */
.news-card-arrows {
    display: flex;
    gap: 20px;
    margin-top: 50px;
    justify-content: center;
    padding-right: 30px;
}
.news-arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid #ddd;
    background: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.3s;
}
.news-arrow:hover {
    background: #e40000;
    border-color: #e40000;
    color: #fff;
}

/* 移动端新闻列表 */
.news-mobile-list {
    display: none;
}

@media (max-width: 768px) {
    .news-body {
        display: none;
    }
    .news-mobile-list {
        display: block;
        padding: 0 15px;
    }
    .news-mobile-item {
        display: flex;
        text-decoration: none;
        color: inherit;
        background: #fff;
        margin-bottom: 15px;
        padding: 15px;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .news-mobile-img {
        flex: 0 0 120px;
        position: relative;
    }
    .news-mobile-img img {
        width: 100%;
        height: 80px;
        object-fit: cover;
        border-radius: 4px;
    }
    .news-mobile-text {
        flex: 1;
        padding-left: 12px;
    }
    .news-mobile-title {
        font-size: 1rem;
        font-weight: bold;
        color: #333;
        margin-bottom: 8px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .news-mobile-desc {
        font-size: 0.85rem;
        color: #666;
        line-height: 1.5;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
}

/* 页脚 */
.site-footer {
    background: url('../img/fo.jpg') no-repeat center center;
    background-size: cover;
    padding: 0;
}

.footer-main {
    display: flex;
    flex-direction: row;
    gap: 0;
}

.footer-left {
    flex: 0 0 70%;
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding-top: 40px;
    padding-bottom: 50px;
    color: #fff;
}

.footer-right {
    flex: 0 0 30%;
    background: #641919;
    padding: 30px;
    color: #fff;
}

.footer-contact-title {
    margin-bottom: 30px;
}

.footer-left-top {
    display: flex;
    align-items: center;
    gap: 40px;
}

.footer-logo-wrap {
    flex-shrink: 0;
}

.footer-logo {
    height: 60px;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
}

.footer-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    flex: 1;
    text-align: center;
}

.footer-nav a:hover {
    color: #e40000;
}

.footer-left-bottom {
    display: flex;
    gap: 30px;
    padding-top: 30px;
    border-top: 1px solid #fff;
}

.footer-contact-col {
    flex: 4;
}

.footer-qr {
    flex: 2;
}

.footer-product-col {
    flex: 2;
}

.footer-product-title {
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 12px;
}

.footer-product-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-product-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

.footer-product-nav a:hover {
    color: #e40000;
}

.footer-company {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 12px;
}

.footer-contact-item {
    font-size: 14px;
    color: #fff;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 2px;
}
}

.footer-qr {
    flex-shrink: 0;
}

.footer-qr-img {
    width: 120px;
    height: 120px;
}

.footer-divider {
    width: 1px;
    background: #fff;
    flex-shrink: 0;
}

.footer-right {
    flex: 0 0 30%;
    background: #e40000;
    padding: 30px;
    color: #fff;
    width: 30%;
    box-sizing: border-box;
}

.footer-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    width: 100%;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.2);
    color: #fff;
    font-size: 14px;
    box-sizing: border-box;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255,255,255,0.7);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    padding: 12px 24px;
    background: #641919;
    border: none;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}
    color: #e40000;
    border: none;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    align-self: flex-start;
}

.form-submit:hover {
    background: #f0f0f0;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .site-footer {
        padding: 30px 0;
    }
    .footer-main {
        flex-direction: column;
        gap: 20px;
    }
    .footer-left {
        flex: none;
        width: 100%;
        padding-bottom: 20px;
    }
    .footer-divider {
        width: 100%;
        height: 1px;
        flex-shrink: 0;
    }
    .footer-right {
        flex: none;
        width: 100%;
    }
    .footer-left-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    .footer-nav {
        gap: 12px;
        justify-content: flex-start;
    }
    .footer-nav a {
        font-size: 14px;
        flex: none;
    }
    .footer-left-bottom {
        flex-direction: column;
        gap: 20px;
    }
    .footer-contact-col {
        flex: none;
        width: 100%;
    }
    .footer-qr,
    .footer-product-col {
        display: none;
    }
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px 0;
    text-align: center;
}

.footer-bottom p {
    color: #fff;
    font-size: 14px;
    margin: 0;
}

/* 内页通用样式 */
.page-banner {
    height: 400px;
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.page-path {
    background: #f5f5f5;
    padding: 15px 0;
}
.page-path-inner {
    font-size: 14px;
    color: #666;
}
.page-path-inner a {
    color: #666;
    text-decoration: none;
}
.page-path-inner a:hover {
    color: #e40000;
}
.page-content {
    padding: 40px 0;
    display: flex;
    gap: 40px;
}

.page-content-full {
    padding-top: 0;
}
.page-sidebar {
    width: 250px;
    flex-shrink: 0;
}
.page-sidebar-title {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 2px solid #e40000;
    margin-bottom: 20px;
}
.page-sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}
.page-sidebar-nav li {
    margin-bottom: 0;
}
.page-sidebar-nav a {
    display: block;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #eee;
    transition: all 0.3s;
}
.page-sidebar-nav a:hover,
.page-sidebar-nav a.active {
    background: #e40000;
    color: #fff;
}
.page-main {
    flex: 1;
}
.page-main h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e40000;
}
.page-main p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

/* 联系我们页面 */
.contact-section {
    padding: 40px 0 60px;
}
.contact-title {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e40000;
    margin-top: 0;
}
.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}
.contact-card {
    background: #f8f8f8;
    padding: 30px 20px;
    text-align: center;
    border-radius: 8px;
    transition: all 0.3s;
}
.contact-card:hover {
    background: #fff;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}
.contact-card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: #e40000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.contact-card-icon img {
    width: 30px;
    height: 30px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}
.contact-card-info h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}
.contact-card-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .page-banner {
        height: 150px;
    }
    .page-content {
        flex-direction: column;
        padding: 20px 0;
    }
    .page-sidebar {
        width: 100%;
    }
    .page-sidebar-nav {
        display: flex;
        flex-wrap: wrap;
    }
    .page-sidebar-nav li {
        width: 33.33%;
        box-sizing: border-box;
    }
    .page-sidebar-nav a {
        text-align: center;
        border: 1px solid #eee;
        margin: -1px -1px 0 0;
    }
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .gallery-title {
        font-size: 12px;
        padding: 8px;
    }
}

/* 产品列表页 */
.product-section {
    padding: 0;
}
.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}
.product-item {
    background: #f8f8f8;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}
.product-item:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}
.product-img {
    display: block;
    width: 100%;
    overflow: hidden;
}
.product-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s;
}
.product-item:hover .product-img img {
    transform: scale(1.05);
}
.product-info {
    padding: 15px;
    text-align: center;
    transition: background 0.3s;
}
.product-item:hover .product-info {
    background: #e40000;
}
.product-name {
    font-size: 16px;
    color: #333;
    margin: 0;
    transition: color 0.3s;
}
.product-name a {
    color: #333;
    text-decoration: none;
}
.product-item:hover .product-name a {
    color: #fff;
}

/* 图片展示页 */
.gallery-section {
    padding: 0;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}
.gallery-item {
    border-radius: 8px;
    overflow: hidden;
}
.gallery-img {
    display: block;
    position: relative;
    overflow: hidden;
}
.gallery-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s;
}
.gallery-item:hover .gallery-img img {
    transform: scale(1.05);
}
.gallery-title {
    position: absolute;
    left: 0;
    bottom: 0;
    right: 0;
    padding: 12px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    font-size: 14px;
    text-align: center;
}

/* 文章列表页 */
.article-section {
    padding: 0;
}
.article-list {
    margin-bottom: 30px;
}
.article-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px dashed #eee;
}
.article-item:first-child {
    padding-top: 0;
}
.article-img {
    flex-shrink: 0;
    width: 200px;
    height: 140px;
    overflow: hidden;
    border-radius: 8px;
}
.article-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.article-img:hover img {
    transform: scale(1.05);
}
.article-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-title {
    font-size: 18px;
    margin: 0 0 10px;
    line-height: 1.4;
}
.article-title a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}
.article-title a:hover {
    color: #e40000;
}
.article-date {
    color: #999;
    font-size: 14px;
    margin: 0 0 10px;
}
.article-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    margin: 0 0 15px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-more {
    color: #e40000;
    font-size: 14px;
    text-decoration: none;
}
.article-more:hover {
    text-decoration: underline;
}

/* 文章详情页 */
.article-detail {
    padding: 0;
}
.article-detail-title {
    font-size: 24px;
    color: #333;
    margin: 0 0 15px;
    line-height: 1.4;
}
.article-detail-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: #999;
    font-size: 14px;
}
.article-detail-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}
.article-detail-meta .meta-item img {
    width: 16px;
    height: 16px;
}
.article-detail-cover {
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
}
.article-detail-cover img {
    width: 100%;
    height: auto;
}
.article-detail-content {
    color: #333;
    font-size: 15px;
    line-height: 2;
    margin-bottom: 25px;
}
.article-detail-content p {
    margin: 0 0 15px;
    text-indent: 2em;
}
.article-detail-content img {
    display: block;
    margin: 15px auto;
    max-width: 100%;
}
.article-detail-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 15px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    margin-bottom: 25px;
}
.tag-label {
    color: #999;
}
.tag {
    display: inline-block;
    padding: 4px 12px;
    background: #f5f5f5;
    color: #666;
    font-size: 12px;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
}
.tag:hover {
    background: #e40000;
    color: #fff;
}
.article-detail-nav {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #999;
}
.article-detail-nav a {
    color: #666;
    text-decoration: none;
}
.article-detail-nav a:hover {
    color: #e40000;
}
.article-prev, .article-next {
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 搜索结果页 */
.search-result {
    padding: 0;
}
.search-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}
.search-result-info {
    font-size: 14px;
    color: #666;
}
.search-keyword {
    color: #e40000;
}
.search-form-inline {
    display: flex;
    gap: 10px;
}
.search-input {
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    width: 200px;
}
.search-btn {
    padding: 10px 20px;
    background: #e40000;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}
.search-btn:hover {
    background: #c70000;
}
.search-section {
    margin-bottom: 30px;
}
.search-section-title {
    font-size: 16px;
    color: #333;
    margin: 0 0 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e40000;
}
.search-section-title .icon {
    color: #e40000;
}
.search-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.search-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: #f8f8f8;
    border-radius: 8px;
}
.search-item-img {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
}
.search-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.search-item-info {
    flex: 1;
}
.search-item-info h4 {
    font-size: 16px;
    margin: 0 0 8px;
}
.search-item-info h4 a {
    color: #333;
    text-decoration: none;
}
.search-item-info h4 a:hover {
    color: #e40000;
}
.search-item-meta {
    color: #999;
    font-size: 12px;
    margin: 0 0 8px;
}
.search-item-meta a {
    color: #e40000;
}
.search-item-info p {
    color: #666;
    font-size: 13px;
    line-height: 1.6;
    margin: 0 0 8px;
}
.item-type {
    font-size: 12px;
    color: #e40000;
    font-weight: normal;
}
.search-item-more {
    color: #e40000;
    font-size: 13px;
    text-decoration: none;
}
.search-item-more:hover {
    text-decoration: underline;
}

/* 移动端文章列表 */
@media (max-width: 768px) {
    .article-item {
        flex-direction: column;
        gap: 15px;
    }
    .article-img {
        width: 100%;
        height: 180px;
    }
    .article-title {
        font-size: 16px;
    }
    .article-detail-title {
        font-size: 16px;
    }
    .article-detail-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
    .page-main h1 {
        font-size: 18px;
    }
    .article-detail-nav {
        flex-direction: column;
        gap: 10px;
    }
    .article-prev, .article-next {
        max-width: 100%;
    }
}

/* 资料下载列表页 */
.download-section {
    padding: 0;
}
.download-list {
    margin-bottom: 30px;
}
.download-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #f8f8f8;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: all 0.3s;
}
.download-item:hover {
    background: #fff;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}
.download-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.download-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}
.download-info {
    flex: 1;
}
.download-title {
    font-size: 16px;
    color: #333;
    margin: 0 0 8px;
    line-height: 1.4;
}
.download-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 0;
    font-size: 13px;
    color: #999;
}
.download-type {
    display: inline-block;
    padding: 2px 8px;
    background: #e40000;
    color: #fff;
    border-radius: 3px;
    font-size: 11px;
}
.download-type-doc {
    background: #2b5797;
}
.download-size {
    color: #666;
}
.download-date {
    color: #999;
}
.download-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: #e40000;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
}
.download-btn img {
    width: 18px;
    height: 18px;
    filter: brightness(0) invert(1);
}
.download-btn:hover {
    background: #c70000;
}

/* 移动端下载列表 */
@media (max-width: 768px) {
    .download-item {
        flex-wrap: wrap;
        padding: 15px;
    }
    .download-icon {
        width: 40px;
        height: 40px;
    }
    .download-icon img {
        width: 32px;
        height: 32px;
    }
    .download-info {
        flex: 1;
        min-width: calc(100% - 70px);
    }
    .download-title {
        font-size: 14px;
    }
    .download-meta {
        flex-wrap: wrap;
        gap: 8px;
        font-size: 12px;
    }
    .download-btn {
        width: 100%;
        justify-content: center;
        margin-top: 10px;
        padding: 12px 20px;
    }
}
.zoom-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
.zoom-overlay.active {
    display: flex;
}
.zoom-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}
.zoom-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    animation: zoomFadeIn 0.3s ease;
}
@keyframes zoomFadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}
.zoom-caption {
    text-align: center;
    color: #fff;
    padding: 15px;
    font-size: 16px;
}
.zoom-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 30px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
}
.zoom-close:hover {
    color: #e40000;
}
.zoom-nav span {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 40px;
    cursor: pointer;
    padding: 20px;
    user-select: none;
}
.zoom-nav span:hover {
    color: #e40000;
}
.zoom-prev { left: -80px; }
.zoom-next { right: -80px; }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 30px 0;
}
.pagination a {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid #ddd;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}
.pagination a:hover {
    border-color: #e40000;
    color: #e40000;
}
.pagination a.active {
    background: #e40000;
    border-color: #e40000;
    color: #fff;
}

/* 产品详情页 */
.product-detail {
    padding: 0;
}
.product-detail-box {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}
.product-detail-img {
    flex: 0 0 45%;
    background: #f8f8f8;
    border-radius: 8px;
    overflow: hidden;
}
.product-detail-img img {
    width: 100%;
    height: auto;
    display: block;
}
.product-detail-info {
    flex: 1;
    text-align: left;
}
h1.product-detail-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e40000;
    text-align: left;
}
.product-detail-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 25px;
}
.product-contact {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
}
.contact-phone {
    flex: 1;
    font-size: 16px;
    color: #333;
    margin: 0;
}
.contact-phone strong {
    color: #e40000;
    font-size: 22px;
    font-weight: bold;
}
.contact-btn {
    display: inline-block;
    padding: 10px 25px;
    background: #e40000;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s;
}
.contact-btn:hover {
    background: #c70000;
}
.product-detail-text {
    background: #f8f8f8;
    padding: 30px;
    border-radius: 8px;
}
.product-detail-text-title {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e40000;
}
.product-detail-text-content {
    line-height: 2;
    color: #666;
    font-size: 14px;
}
.product-detail-text-content p {
    margin-bottom: 15px;
}
.product-detail-title {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e40000;
}
.product-detail-content {
    background: #f8f8f8;
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 30px;
}
.product-detail-content p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}
.product-detail-content ul {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}
.product-detail-content ul li {
    line-height: 1.8;
    color: #666;
    padding-left: 20px;
    position: relative;
}
.product-detail-content ul li::before {
    content: '•';
    color: #e40000;
    position: absolute;
    left: 0;
}
.product-detail-contact {
    background: #fff;
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 8px;
    text-align: center;
}
.product-detail-contact p {
    font-size: 16px;
    color: #333;
    margin-bottom: 15px;
}
.contact-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #e40000;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s;
}
.contact-btn:hover {
    background: #c70000;
}

/* 移动端联系我们 */
@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: 1fr;
    }
    .product-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    .product-info {
        padding: 15px;
    }
    .product-name {
        font-size: 14px;
    }
    .product-desc {
        font-size: 12px;
    }
    .pagination a {
        padding: 6px 12px;
        font-size: 14px;
    }
    .product-detail-box {
        flex-direction: column;
    }
    .product-detail-img {
        flex: none;
    }
    .product-contact {
        flex-wrap: nowrap;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
        padding: 12px 15px;
    }
    .contact-phone {
        font-size: 11px;
        white-space: nowrap;
    }
    .contact-phone span {
        display: none;
    }
    .contact-phone strong {
        font-size: 14px;
    }
    .contact-btn {
        padding: 6px 12px;
        font-size: 12px;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .gallery-title {
        font-size: 12px;
        padding: 8px;
    }
    /* 产品详情移动端边距调整 */
    .page-detail-container {
        padding-left: 0;
        padding-right: 0;
    }
    .page-content {
        padding: 20px 0;
    }
    .page-sidebar {
        width: 100%;
    }
    .page-sidebar-title {
        font-size: 16px;
    }
    .page-sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
    }
    .page-sidebar-nav li {
        flex: 0 0 auto;
    }
    .page-sidebar-nav a {
        padding: 8px 12px;
        border: 1px solid #eee;
        border-radius: 4px;
    }
    .page-sidebar-nav a.active {
        background: #e40000;
        color: #fff;
        border-color: #e40000;
    }
    .product-detail-box {
        flex-direction: column;
    }
    .product-detail-img {
        flex: none;
    }
    .product-detail-img img {
        width: 100%;
    }
    .product-detail-text-content {
        padding: 15px;
    }
}
.contact-form-row {
        flex-direction: column;
        gap: 0;
    }
    .contact-form-wrap {
        padding: 20px;
    }
    .contact-map-placeholder {
        height: 250px;
    }
}