* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(to bottom, #2e3185 0%, rgba(46, 49, 133, 0) 100%);
    transition: background 0.3s ease;
}

.navbar.scrolled {
    background: #2e3185;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo img {
    height: 50px;
    width: auto;
    max-width: 100%;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    display: block;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #fff;
    opacity: 0.9;
}

/* 二级下拉菜单 */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(46, 49, 133, 0.95);
    list-style: none;
    min-width: 180px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

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

.submenu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.submenu li:last-child {
    border-bottom: none;
}

.submenu a {
    color: #fff;
    text-decoration: none;
    padding: 12px 20px;
    display: block;
    font-size: 14px;
    transition: background 0.3s ease, color 0.3s ease;
}

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

/* 搜索框样式 */
.nav-search {
    display: flex;
    align-items: center;
    position: relative;
}

.search-input {
    background: transparent;
    border: 1px solid #fff;
    border-radius: 25px;
    padding: 8px 40px 8px 15px;
    color: #fff;
    font-size: 14px;
    width: 200px;
    outline: none;
    transition: border-color 0.3s ease;
}

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

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

.search-btn {
    position: absolute;
    right: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn svg {
    width: 18px;
    height: 18px;
}

.search-btn:hover svg {
    opacity: 0.8;
}

/* 轮播图容器 */
.banner-container {
    position: relative;
    width: 100%;
    height: auto;
    margin-top: 0;
    overflow: hidden;
}

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

.banner-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: block;
}

.banner-item.active {
    opacity: 1;
    position: relative;
}

.banner-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* 轮播图指示点 */
.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active,
.dot:hover {
    background: #fff;
}

/* 公司简介区 */
.about-section {
    width: 100%;
    padding: 50px 20px;
    background-image: url('../img/jjbj.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.about-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.about-title {
    text-align: center;
}

.about-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.about-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

/* 公司简介内容 */
.about-content {
    display: flex;
    gap: 40px;
    margin-top: 50px;
    align-items: flex-start;
}

.about-left {
    width: 60%;
    margin-top: 40px;
}

.about-right {
    width: 40%;
}

.company-name {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin: 30px 0 20px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.company-intro {
    font-size: 18px;
    line-height: 1.8;
    color: #666;
    margin: 0 0 25px 0;
    text-align: justify;
}

.more-btn {
    display: inline-block;
    padding: 10px 30px;
    background: #2e3185;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    transition: background 0.3s ease, transform 0.2s ease;
    margin-bottom: 40px;
}

.more-btn:hover {
    background: #1a1d5a;
    transform: translateY(-2px);
}

.features {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 120px;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.feature-item:hover {
    transform: translateY(-8px);
}

.feature-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    transition: transform 0.3s ease, filter 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.feature-item:nth-child(1) img {
    animation-delay: 0s;
}

.feature-item:nth-child(2) img {
    animation-delay: 0.3s;
}

.feature-item:nth-child(3) img {
    animation-delay: 0.6s;
}

.feature-item:nth-child(4) img {
    animation-delay: 0.9s;
}

.feature-item:hover img {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 5px 15px rgba(55, 145, 255, 0.3));
}

.feature-item span {
    font-size: 16px;
    color: #3791ff;
    text-align: center;
    font-weight: 500;
    transition: color 0.3s ease, transform 0.3s ease;
}

.feature-item:hover span {
    color: #2e3185;
    transform: scale(1.05);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.about-right {
    position: relative;
}

.about-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    object-fit: cover;
    display: block;
    position: relative;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: imageFloat 4s ease-in-out infinite;
}

.about-right:hover .about-image {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

@keyframes imageFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* 产品中心区 */
.products-section {
    width: 100%;
    padding: 50px 20px 70px 20px;
    background-image: url('../img/cpbj.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.products-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.products-title {
    text-align: center;
    margin-bottom: 50px;
}

.products-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.products-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

.products-nav {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: nowrap;
    margin-bottom: 50px;
    width: 100%;
}

.product-nav-btn {
    padding: 10px 15px;
    background: #fff;
    color: #2e3185;
    border: 1px solid #2e3185;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    white-space: nowrap;
    flex: 1;
    text-align: center;
    min-width: 0;
    text-decoration: none;
    display: inline-block;
}

.product-nav-btn:hover,
.product-nav-btn.active {
    background: #2e3185;
    color: #fff;
}

.products-content {
    position: relative;
    min-height: 400px;
}

.product-category {
    display: none;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-category.active {
    display: grid;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-item {
    text-align: center;
    transition: transform 0.3s ease;
    text-decoration: none;
    display: block;
    color: inherit;
}

.product-item:hover {
    transform: translateY(-5px);
}

.product-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 20px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: block;
}

.product-item h4 {
    font-size: 16px;
    color: #333;
    margin: 0;
    font-weight: 500;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

/* 应用领域区 */
.application-section {
    width: 100%;
    height: auto;
    min-height: 800px;
    position: relative;
    background-image: url('../img/yyly.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
    padding: 50px 0;
}

.application-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    z-index: 1;
}

.application-col {
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    height: 800px;
}

.application-col::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(46, 49, 133, 0), rgba(46, 49, 133, 1));
    z-index: 1;
    transition: opacity 0.3s ease;
}

.application-col::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.application-col:nth-child(1)::after {
    background-image: url('../img/yy1.jpg');
}

.application-col:nth-child(2)::after {
    background-image: url('../img/yy2.jpg');
}

.application-col:nth-child(3)::after {
    background-image: url('../img/yy3.jpg');
}

.application-col:nth-child(4)::after {
    background-image: url('../img/yy4.jpg');
}

.application-col:nth-child(5)::after {
    background-image: url('../img/yy5.jpg');
}

.application-col:hover::before {
    opacity: 0;
}

.application-col:hover::after {
    opacity: 1;
}

.application-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding: 0;
    text-align: center;
    padding-bottom: 50px;
}

.application-icon {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 20px;
    transition: opacity 0.3s ease;
}

.application-col:hover .application-icon {
    opacity: 0;
}

.application-text {
    background: rgba(255, 255, 255, 0);
    padding: 30px 50px;
    border-radius: 0;
    width: 100%;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    transition: background 0.3s ease;
}

.application-text-cn {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 8px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    transition: color 0.3s ease;
}

.application-text-en {
    font-size: 16px;
    font-weight: 400;
    color: #fff;
    margin: 0 0 12px 0;
    font-family: 'Arial', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
    position: relative;
}

.application-text-en::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background: linear-gradient(to right, transparent, #000, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.application-text p {
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    margin: 20px 0 0 0;
    text-align: left;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.3s ease, max-height 0.3s ease;
}

.application-col:hover .application-text {
    background: rgba(255, 255, 255, 0.5);
}

.application-col:hover .application-text-cn {
    color: #333;
}

.application-col:hover .application-text-en {
    color: #333;
}

.application-col:hover .application-text-en::after {
    opacity: 1;
}

.application-col:hover .application-text p {
    opacity: 1;
    max-height: 500px;
}


.application-container {
    position: relative;
    z-index: 2;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 0;
    pointer-events: none;
}

.application-title {
    text-align: center;
    pointer-events: auto;
    margin-bottom: 50px;
}

.application-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.application-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

/* 生产设备区 */
.equipment-section {
    width: 100%;
    padding: 50px 20px 70px 20px;
    background: #fff;
}

.equipment-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.equipment-title {
    text-align: center;
    margin-bottom: 50px;
}

.equipment-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.equipment-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

.equipment-scroll-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.equipment-scroll {
    display: flex;
    gap: 30px;
    animation: scrollLeft 20s linear infinite;
    width: fit-content;
}

.equipment-scroll:hover {
    animation-play-state: paused;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-25% - 7.5px));
    }
}

.equipment-item {
    flex: 0 0 calc(25% - 22.5px);
    min-width: calc(25% - 22.5px);
    max-width: calc(25% - 22.5px);
    text-align: center;
    position: relative;
    text-decoration: none;
    display: block;
    color: inherit;
}

.equipment-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    border-radius: 0;
    margin-bottom: 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: block;
    background: transparent;
}

.equipment-item h4 {
    font-size: 16px;
    color: #fff;
    margin: 0;
    font-weight: 500;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: #2e3185;
    padding: 10px;
    border-radius: 0;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
}

/* 定制流程区 */
.customize-section {
    width: 100%;
    padding: 50px 20px;
    background: url('../img/lcbj.jpg') center/cover no-repeat;
    position: relative;
}

.customize-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.customize-title {
    text-align: center;
    margin-bottom: 50px;
}

.customize-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.customize-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

.customize-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.customize-step {
    flex: 1;
    min-width: 120px;
    max-width: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    background: linear-gradient(to bottom, #fff 0%, #fff 50%, #2e3185 50%, #2e3185 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid #fff;
    box-sizing: border-box;
    transition: all 0.3s ease;
    animation: floatCircle 3s ease-in-out infinite;
}

.step-circle:hover {
    animation-play-state: paused;
    transform: translateY(-5px) scale(1.1) rotate(5deg);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border-color: #a6d5ff;
}

@keyframes floatCircle {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.step-number {
    font-size: 24px;
    font-weight: 700;
    color: #2e3185;
    margin-bottom: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.2;
}

.step-text {
    font-size: 18px;
    color: #2e3185;
    font-weight: 700;
    margin-bottom: 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.2;
    padding: 0 5px;
    text-align: center;
    max-height: 50px;
    overflow: hidden;
}

.step-icon-wrapper {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.step-circle:hover .step-icon-wrapper {
    transform: translateX(-50%) scale(1.15);
}

.step-icon {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

.step-circle:hover .step-icon {
    filter: brightness(1.2);
}

.customize-form-wrapper {
    width: 100%;
}

.customize-form-container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 20px;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    flex-wrap: wrap;
    box-sizing: border-box;
}

.customize-form {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.form-title {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin: 0;
    white-space: nowrap;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.contact-form {
    display: flex;
    flex-direction: row;
    gap: 10px;
    flex: 1 1 auto;
    min-width: 0;
    align-items: center;
    flex-wrap: wrap;
}

.form-input,
.form-textarea {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    box-sizing: border-box;
    flex: 1 1 auto;
    min-width: 120px;
    max-width: 100%;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #2e3185;
}

.form-textarea {
    resize: none;
    min-height: 45px;
    max-height: 45px;
}

.form-submit {
    padding: 12px 30px;
    background: #e74c3c;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    transition: background 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.form-submit:hover {
    background: #c0392b;
}

.customize-contact {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 15px;
    white-space: nowrap;
    min-width: 0;
}

.contact-title {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin: 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.contact-phone {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin: 0;
    font-family: 'Arial', sans-serif;
}

/* 新闻动态区 */
.news-section {
    width: 100%;
    padding: 50px 20px 70px 20px;
    background: #fff;
}

.news-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.news-title {
    text-align: center;
    margin-bottom: 50px;
}

.news-title-en {
    font-size: 36px;
    font-weight: 200;
    color: #a6d5ff;
    margin: 0;
    letter-spacing: 2px;
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
}

.news-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin: 4px 0 0 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1;
}

.news-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-row-first {
    display: flex;
    gap: 20px;
    width: 100%;
    box-sizing: border-box;
}

.news-featured-left {
    flex: 0 0 calc(66.667% - 6px);
    position: relative;
    text-decoration: none;
    display: block;
    transition: transform 0.3s ease;
    box-sizing: border-box;
}

.news-featured-left:hover {
    transform: translateY(-5px);
}

.news-featured-image {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.news-featured-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.news-featured-left:hover .news-featured-image img {
    transform: scale(1.05);
}

.news-featured-left:hover .news-featured-image {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.news-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    padding: 30px 20px 20px 20px;
    color: #fff;
}

.news-image-date {
    font-size: 14px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.news-image-title {
    font-size: 20px;
    font-weight: 600;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.news-featured-right {
    flex: 0 0 calc(33.333% - 14px);
    background: #2e3185;
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.news-featured-right:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(46, 49, 133, 0.3);
    background: #3a3fa0;
}

.news-featured-content {
    color: #fff;
}

.news-featured-date {
    font-size: 14px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.news-featured-title {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 20px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.news-featured-desc {
    font-size: 15px;
    line-height: 1.6;
    margin: 0 0 25px 0;
    opacity: 0.9;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.news-more-btn {
    display: inline-block;
    padding: 10px 25px;
    background: transparent;
    color: #fff;
    border: 1px solid #fff;
    border-radius: 25px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    align-self: flex-start;
}

.news-featured-right:hover .news-more-btn {
    background: #fff;
    color: #2e3185;
    transform: translateX(5px);
}

.news-row-second {
    display: flex;
    gap: 20px;
    width: 100%;
    box-sizing: border-box;
}

.news-item {
    flex: 1 1 calc(33.333% - 14px);
    background: #ececec;
    padding: 30px 25px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 180px;
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    box-sizing: border-box;
    min-width: 0;
}

.news-item:hover {
    background: #2e3185;
    color: #fff;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(46, 49, 133, 0.3);
}

.news-item-date {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    transition: color 0.3s ease;
}

.news-item:hover .news-item-date {
    color: #fff;
    opacity: 0.9;
}

.news-item-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 20px 0;
    color: #333;
    transition: color 0.3s ease;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.news-item:hover .news-item-title {
    color: #fff;
}

.news-item-more {
    display: inline-block;
    padding: 8px 20px;
    background: transparent;
    color: #2e3185;
    border: 1px solid #2e3185;
    border-radius: 25px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    align-self: flex-start;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.news-item:hover .news-item-more {
    background: #fff;
    color: #2e3185;
    border-color: #fff;
    transform: translateX(5px);
}

.news-item-title {
    transition: color 0.3s ease;
}

.news-item:hover .news-item-title {
    color: #fff;
    transform: translateX(3px);
}

/* 页脚 */
.footer {
    width: 100%;
    background: url('../img/fbj.jpg') center/cover no-repeat;
    position: relative;
}

.footer-top-border {
    width: 100%;
    height: 4px;
    background: #2e3185;
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    padding: 50px 20px;
    display: flex;
    justify-content: space-between;
    gap: 30px;
    box-sizing: border-box;
}

.footer-left {
    flex: 0 0 15%;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo img {
    max-width: 150px;
    height: auto;
}

.footer-qrcode {
    margin-bottom: 15px;
}

.footer-qrcode img {
    width: 120px;
    height: 120px;
    display: block;
}

.footer-contact-text {
    font-size: 16px;
    color: #333;
    font-weight: 500;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-center {
    flex: 0 0 35%;
    display: flex;
    flex-direction: column;
    gap: 30px;
    box-sizing: border-box;
}

.footer-center .footer-info {
    margin-top: 20px;
}

.footer-search {
    display: flex;
    align-items: center;
    width: 60%;
    position: relative;
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid #ddd;
    background: #fff;
}

.footer-search-input {
    flex: 1;
    padding: 10px 50px 10px 20px;
    border: none;
    border-radius: 25px;
    background: transparent;
    color: #333;
    font-size: 14px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-search-input::placeholder {
    color: #999;
}

.footer-search-input:focus {
    outline: none;
}

.footer-search:focus-within {
    border-color: #2e3185;
}

.footer-search-btn {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    padding: 0 20px;
    background: #2e3185;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: background 0.3s ease;
}

.footer-search-text {
    color: #fff;
    font-size: 14px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    font-weight: 500;
}

.footer-search-btn:hover {
    background: #3a3fa0;
}

.footer-info {
    color: #333;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-phone {
    margin-bottom: 15px;
}

.footer-phone-label {
    font-size: 16px;
    margin-bottom: 5px;
    color: #2e3185;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.footer-phone-icon {
    color: #2e3185;
    flex-shrink: 0;
}

.footer-phone-number {
    font-size: 24px;
    font-weight: 700;
    color: #333;
}

.footer-company-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
}

.footer-address,
.footer-email,
.footer-website {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.6;
    opacity: 0.9;
}

.footer-right {
    flex: 0 0 50%;
    display: flex;
    gap: 30px;
    box-sizing: border-box;
}

.footer-menu-col {
    flex: 0 0 33.333%;
    box-sizing: border-box;
}

.footer-menu-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin: 0 0 15px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-menu-list li {
    margin-bottom: 10px;
}

.footer-menu-list a {
    color: #666;
    text-decoration: none;
    font-size: 16px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    transition: color 0.3s ease;
}

.footer-menu-list a:hover {
    color: #2e3185;
}

.footer-copyright {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 0;
}

.footer-copyright-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    box-sizing: border-box;
    width: 100%;
}

.footer-copyright-content p {
    margin: 0;
    font-size: 14px;
    color: #333;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-all;
    line-height: 1.6;
}

.footer-copyright-content a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-copyright-content a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* 单页样式 */
.page-banner {
    width: 100%;
    margin-top: 0;
    overflow: hidden;
    height: 500px;
    position: relative;
}

.page-banner img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
}

.page-banner-container {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 50px;
    width: 100%;
    max-width: 1600px;
    padding: 0 20px;
    box-sizing: border-box;
    z-index: 10;
}

.page-banner-title {
    color: #fff;
    font-size: 36px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-breadcrumb {
    width: 100%;
    background: #f5f5f5;
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.breadcrumb-container a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-container a:hover {
    color: #2e3185;
}

.breadcrumb-separator {
    color: #999;
    margin: 0 5px;
}

.breadcrumb-current {
    color: #2e3185;
    font-weight: 500;
}

.page-content-wrapper {
    width: 100%;
    padding: 30px 20px;
    background: #fff;
}

.page-content-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.page-sidebar {
    flex: 0 0 300px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 12px;
    padding: 0;
    box-sizing: border-box;
    box-shadow: 0 4px 20px rgba(46, 49, 133, 0.08);
    border: 1px solid rgba(46, 49, 133, 0.1);
    overflow: hidden;
    position: relative;
}

.page-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #2e3185 0%, #3791ff 100%);
    z-index: 1;
}

.sidebar-title {
    font-size: 20px;
    font-weight: 700;
    color: #2e3185;
    margin: 0;
    padding: 25px 25px 20px 35px;
    background: linear-gradient(135deg, rgba(46, 49, 133, 0.05) 0%, rgba(55, 145, 255, 0.05) 100%);
    border-bottom: 1px solid rgba(46, 49, 133, 0.1);
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    position: relative;
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 35px;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #2e3185 0%, #3791ff 100%);
    border-radius: 2px;
}

.sidebar-menu {
    list-style: none;
    padding: 15px 15px 20px 15px;
    margin: 0;
}

.sidebar-item {
    margin-bottom: 8px;
    position: relative;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    padding: 14px 20px 14px 35px;
    color: #555;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 15px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    position: relative;
    background: transparent;
}

.sidebar-item a::before {
    content: '';
    position: absolute;
    left: 15px;
    width: 6px;
    height: 6px;
    background: #ccc;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.sidebar-item a:hover {
    background: linear-gradient(90deg, rgba(46, 49, 133, 0.08) 0%, rgba(55, 145, 255, 0.05) 100%);
    color: #2e3185;
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(46, 49, 133, 0.1);
}

.sidebar-item a:hover::before {
    background: #2e3185;
    transform: scale(1.3);
}

.sidebar-item.active a {
    background: linear-gradient(90deg, #2e3185 0%, #3a3fa0 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(46, 49, 133, 0.3);
    font-weight: 600;
}

.sidebar-item.active a::before {
    background: #fff;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

.page-main {
    flex: 1;
    min-width: 0;
}

.page-main-content {
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(46, 49, 133, 0.1);
    border: 1px solid rgba(46, 49, 133, 0.08);
    position: relative;
    overflow: hidden;
}

.page-main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2e3185 0%, #3791ff 50%, #2e3185 100%);
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: #2e3185;
    margin: 0 0 30px 0;
    padding-bottom: 0;
    border-bottom: none;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    position: relative;
    padding-left: 20px;
}

.page-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 32px;
    background: linear-gradient(180deg, #2e3185 0%, #3791ff 100%);
    border-radius: 3px;
}

.page-text {
    color: #444;
    line-height: 2;
    font-size: 17px;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.page-text p {
    margin: 0 0 24px 0;
    position: relative;
    padding-left: 20px;
}

.page-text p::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #3791ff;
    font-size: 14px;
    top: 2px;
    opacity: 0.6;
}

.page-text p:first-child {
    font-size: 18px;
    color: #333;
    font-weight: 500;
    padding-left: 0;
}

.page-text p:first-child::before {
    display: none;
}

.page-text p:last-child {
    margin-bottom: 0;
}

/* 联系我们页面样式 */
.contact-intro {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
}

.contact-intro p {
    font-size: 17px;
    line-height: 1.8;
    color: #555;
    margin: 0;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 30px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 12px;
    border: 1px solid #e8e9f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #2e3185;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(46, 49, 133, 0.15);
    border-color: #2e3185;
}

.contact-info-item:hover::before {
    transform: scaleY(1);
}

.contact-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2e3185 0%, #4a4fa8 100%);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.contact-info-item:hover .contact-icon {
    transform: rotate(5deg) scale(1.1);
    box-shadow: 0 4px 12px rgba(46, 49, 133, 0.3);
}

.contact-icon svg {
    stroke: #fff;
}

.contact-content {
    flex: 1;
}

.contact-label {
    font-size: 16px;
    font-weight: 600;
    color: #2e3185;
    margin: 0 0 10px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.contact-value {
    font-size: 16px;
    color: #333;
    margin: 0;
    line-height: 1.6;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.contact-value a {
    color: #2e3185;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-value a:hover {
    color: #4a4fa8;
    text-decoration: underline;
}

/* 联系我们页面响应式 */
@media (max-width: 768px) {
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-info-item {
        padding: 20px;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .contact-label {
        font-size: 15px;
    }
    
    .contact-value {
        font-size: 15px;
    }
    
    .contact-intro p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .contact-info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px 15px;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
}

/* 内容区 */
.content-wrapper {
    width: 100%;
    padding: clamp(30px, 5vw, 60px) clamp(15px, 3vw, 20px);
    background: #f5f5f5;
}

.content-container {
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    background: #fff;
    padding: clamp(20px, 4vw, 40px);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.content-container h1 {
    font-size: clamp(24px, 4vw, 32px);
    margin-bottom: 20px;
    color: #2e3185;
}

.content-container p {
    font-size: clamp(14px, 2vw, 16px);
    color: #666;
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-link {
        padding: 10px 15px;
        font-size: clamp(13px, 1.5vw, 16px);
    }
    
    .search-input {
        width: 150px;
        font-size: 13px;
    }
    
    .about-section {
        padding: 50px 15px;
    }
    
    .about-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .about-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .about-content {
        gap: 30px;
        margin-top: 40px;
    }
    
    .company-name {
        font-size: 22px;
    }
    
    .company-intro {
        font-size: 16px;
    }
    
    .about-left {
        margin-top: 30px;
    }
    
    .features {
        gap: 20px;
    }
    
    .content-container {
        padding: 30px;
    }
    
    .application-text {
        padding: 30px 15px;
    }
    
    .products-section {
        padding: 50px 15px;
    }
    
    .products-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .products-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .application-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .application-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .equipment-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .equipment-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .customize-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .customize-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .news-title-en {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .news-title-cn {
        font-size: 24px;
        margin-top: 4px;
    }
    
    .customize-steps {
        gap: 15px;
    }
    
    .step-circle {
        width: 130px;
        height: 130px;
    }
    
    .products-nav {
        gap: 12px;
        margin-bottom: 40px;
    }
    
    .product-nav-btn {
        padding: 8px 20px;
        font-size: 13px;
    }
    
    .product-category {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        gap: 20px;
    }
    
    .nav-link {
        padding: 10px 12px;
    }
    
    .search-input {
        width: 130px;
    }
}

@media (max-width: 768px) {
    .navbar {
        background: linear-gradient(to bottom, #2e3185 0%, rgba(46, 49, 133, 0) 100%);
    }
    
    .navbar.scrolled {
        background: #2e3185;
    }
    
    .nav-container {
        height: auto;
        min-height: 60px;
        padding: 10px 15px;
    }
    
    .nav-logo img {
        height: 40px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: 0;
        background: rgba(46, 49, 133, 0.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
        gap: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: height 0.3s ease, padding 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }
    
    .nav-menu.active {
        height: calc(100vh - 60px);
        min-height: calc(100vh - 60px);
        padding: 20px;
        opacity: 1;
        visibility: visible;
        overflow-y: auto;
    }
    
    .nav-list {
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        padding: 15px 0;
        font-size: 15px;
        width: 100%;
    }
    
    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        margin-top: 0;
        padding: 0;
        box-shadow: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-item.active .submenu {
        max-height: 300px;
        margin-top: 6px;
        padding: 6px 0;
        background: rgba(0, 0, 0, 0.2);
    }
    
    .submenu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .submenu a {
        padding: 12px 0 12px 20px;
        font-size: 14px;
    }
    
    .nav-search {
        width: 100%;
        margin-top: 15px;
    }
    
    .search-input {
        width: 100%;
        padding: 10px 40px 10px 15px;
        font-size: 14px;
    }
    
    .banner-dots {
        bottom: 15px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
    
    .about-section {
        padding: 50px 15px;
    }
    
    .about-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .about-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .about-content {
        flex-direction: column;
        gap: 30px;
        margin-top: 30px;
    }
    
    .about-left {
        width: 100%;
    }
    
    .about-right {
        width: 100%;
    }
    
    .company-name {
        font-size: 20px;
        margin: 15px 0 15px 0;
    }
    
    .company-intro {
        font-size: 15px;
        margin-bottom: 20px;
    }
    
    .about-left {
        margin-top: 25px;
    }
    
    .more-btn {
        padding: 8px 25px;
        font-size: 13px;
        margin-bottom: 30px;
    }
    
    .features {
        gap: 15px;
        justify-content: space-around;
    }
    
    .feature-item {
        min-width: 100px;
    }
    
    .feature-item img {
        width: 65px;
        height: 65px;
    }
    
    .feature-item span {
        font-size: 14px;
        color: #3791ff;
    }
    
    .products-section {
        padding: 50px 15px;
    }
    
    .products-title {
        margin-bottom: 35px;
    }
    
    .products-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .products-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .equipment-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .equipment-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .application-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .application-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .customize-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .customize-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .news-title-en {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .news-title-cn {
        font-size: 20px;
        margin-top: 3px;
    }
    
    .news-row-first {
        flex-direction: column;
        gap: 20px;
    }
    
    .news-featured-left,
    .news-featured-right {
        flex: 1 1 100%;
    }
    
    .news-row-second {
        flex-direction: column;
        gap: 20px;
    }
    
    .news-item {
        min-height: auto;
    }
    
    .footer-right {
        display: none !important;
    }
    
    .footer-left {
        display: none !important;
    }
    
    .footer-container {
        padding: 30px 15px !important;
        gap: 20px !important;
        flex-wrap: wrap !important;
    }
    
    .footer-center {
        flex: 0 0 100% !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .footer-search {
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .footer-search-input {
        font-size: 14px !important;
        padding: 10px 12px !important;
    }
    
    .footer-info {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
    }
    
    .footer-phone-number {
        font-size: 20px !important;
        word-break: break-all !important;
    }
    
    .footer-company-name {
        font-size: 16px !important;
        word-break: break-all !important;
    }
    
    .footer-address,
    .footer-email,
    .footer-website {
        font-size: 15px !important;
        word-break: break-all !important;
    }
    
    .footer-right {
        display: none;
    }
    
    .page-banner {
        height: 300px;
    }
    
    .page-banner-container {
        bottom: 30px;
        padding: 0 20px;
    }
    
    .page-banner-title {
        font-size: 28px;
    }
    
    .page-content-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .page-sidebar {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .page-sidebar .sidebar-title {
        display: none;
    }
    
    .page-sidebar .sidebar-menu,
    .page-sidebar ul.sidebar-menu {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 6px !important;
        padding: 12px !important;
    }
    
    .page-sidebar .sidebar-item {
        margin-bottom: 0 !important;
    }
    
    .page-sidebar .sidebar-item a {
        padding: 10px 15px !important;
        font-size: 16px !important;
    }
    
    .page-sidebar .sidebar-item a::before {
        left: 8px !important;
    }
    
    .page-sidebar .sidebar-item a:hover {
        transform: translateX(0) !important;
    }
    
    .page-main {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .page-main-content {
        padding: 25px;
        border-radius: 12px;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .product-detail-wrapper {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .page-title {
        font-size: 26px;
        padding-left: 15px;
    }
    
    .page-title::before {
        width: 4px;
        height: 26px;
    }
    
    .page-text {
        font-size: 16px;
    }
    
    .page-text p:first-child {
        font-size: 17px;
    }
    
    .page-text p {
        padding-left: 15px;
    }
    
    .customize-steps {
        gap: 10px;
        margin-bottom: 40px;
        justify-content: center;
    }
    
    .customize-step {
        flex: 0 0 calc(33.333% - 7px);
        min-width: calc(33.333% - 7px);
        max-width: calc(33.333% - 7px);
    }
    
    .step-circle {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
        max-width: 120px;
        margin: 0 auto;
    }
    
    .step-number {
        font-size: 18px;
    }
    
    .step-text {
        font-size: 12px;
    }
    
    .step-icon-wrapper {
        width: 50px;
        height: 50px;
        bottom: 8px;
    }
    
    .customize-form-container {
        flex-direction: column;
        gap: 30px;
    }
    
    .contact-phone {
        font-size: 20px;
    }
    
    .products-nav {
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 30px;
    }
    
    .product-nav-btn {
        padding: 8px 15px;
        font-size: 14px;
        flex: 1 1 calc(50% - 10px);
        min-width: 100px;
    }
    
    .product-nav-btn:first-child {
        flex: 1 1 100%;
        width: 100%;
    }
    
    .product-category {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .product-item img {
        border-radius: 18px;
    }
    
    .product-item img {
        height: auto;
    }
    
    .application-overlay {
        flex-direction: row;
    }
    
    .application-col {
        flex: 0 0 calc(33.333% - 1px);
        height: 500px;
    }
    
    .application-col:nth-child(4),
    .application-col:nth-child(5) {
        flex: 0 0 calc(50% - 1px);
        height: 300px;
    }
    
    .application-text {
        padding: 20px 15px;
        min-height: auto;
    }
    
    .application-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 12px;
    }
    
    .application-text-cn {
        font-size: 16px;
    }
    
    .application-text-en {
        font-size: 13px;
    }
    
    .equipment-item {
        flex: 0 0 calc(50% - 15px);
        min-width: calc(50% - 15px);
        max-width: calc(50% - 15px);
    }
    
    .equipment-item img {
        height: auto;
        object-fit: contain;
        object-position: center;
    }
    
    .content-wrapper {
        padding: 40px 15px;
    }
    
    .content-container {
        padding: 25px 20px;
    }
}

@media screen and (max-width: 480px) {
    .nav-container {
        min-height: 55px;
        padding: 8px 12px;
    }
    
    .nav-logo img {
        height: 35px;
    }
    
    .mobile-menu-toggle {
        width: 25px;
        height: 25px;
    }
    
    .nav-menu {
        top: 55px;
        padding: 15px;
    }
    
    .nav-link {
        padding: 12px 0;
        font-size: 14px;
    }
    
    .submenu a {
        padding: 10px 0 10px 15px;
        font-size: 13px;
    }
    
    .search-input {
        padding: 8px 35px 8px 12px;
        font-size: 13px;
    }
    
    .banner-dots {
        bottom: 10px;
        gap: 8px;
    }
    
    .dot {
        width: 8px;
        height: 8px;
    }
    
    .about-section {
        padding: 40px 12px;
    }
    
    .about-title-en {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .about-title-cn {
        font-size: 18px;
        margin-top: 3px;
    }
    
    .about-content {
        margin-top: 25px;
    }
    
    .company-name {
        font-size: 18px;
        margin: 10px 0 12px 0;
    }
    
    .company-intro {
        font-size: 14px;
        margin-bottom: 18px;
    }
    
    .about-left {
        margin-top: 20px;
    }
    
    .more-btn {
        padding: 8px 20px;
        font-size: 12px;
        margin-bottom: 25px;
    }
    
    .features {
        gap: 10px;
    }
    
    .feature-item {
        min-width: 80px;
    }
    
    .feature-item img {
        width: 55px;
        height: 55px;
    }
    
    .feature-item span {
        font-size: 13px;
        color: #3791ff;
    }
    
    .products-section {
        padding: 50px 12px;
    }
    
    .equipment-section {
        padding: 50px 12px;
    }
    
    .products-nav {
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 25px;
    }
    
    .product-nav-btn {
        padding: 6px 12px;
        font-size: 11px;
        flex: 1 1 calc(50% - 8px);
        min-width: 80px;
    }
    
    .product-category {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .product-item img {
        height: auto;
    }
    
    .products-title-en {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .products-title-cn {
        font-size: 18px;
        margin-top: 3px;
    }
    
    .application-title-en {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .application-title-cn {
        font-size: 18px;
        margin-top: 3px;
    }
    
    .equipment-title-en {
        font-size: 26px;
        letter-spacing: 1px;
    }
    
    .equipment-title-cn {
        font-size: 18px;
        margin-top: 3px;
    }
    
    .content-wrapper {
        padding: 30px 12px;
    }
    
    .content-container {
        padding: 20px 15px;
    }
    
    .page-banner {
        margin-top: 0 !important;
        height: 200px !important;
    }
    
    .page-banner-container {
        bottom: 20px;
        padding: 0 20px;
    }
    
    .page-banner-title {
        font-size: 22px;
    }
}

/* 超小屏幕 */
@media (max-width: 360px) {
    .nav-container {
        padding: 6px 10px;
    }
    
    .nav-logo img {
        height: 30px;
    }
    
    .about-section {
        padding: 50px 10px;
    }
    
    .products-section {
        padding: 50px 10px;
    }
    
    .equipment-section {
        padding: 50px 10px;
    }
    
    .about-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .about-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .products-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .products-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .application-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .application-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .equipment-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .equipment-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .news-section {
        padding: 50px 10px;
    }
    
    .news-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .news-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .news-featured-right {
        padding: 25px 15px;
    }
    
    .news-featured-title {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .news-featured-desc {
        font-size: 13px;
        margin-bottom: 20px;
    }
    
    .news-image-title {
        font-size: 18px;
    }
    
    .news-item-title {
        font-size: 16px;
    }
    
    .customize-section {
        padding: 50px 10px;
    }
    
    .customize-title-en {
        font-size: 24px;
        letter-spacing: 1px;
    }
    
    .customize-title-cn {
        font-size: 16px;
        margin-top: 3px;
    }
    
    .customize-steps {
        gap: 8px;
        margin-bottom: 25px;
        justify-content: center;
    }
    
    .customize-step {
        flex: 0 0 calc(33.333% - 6px);
        min-width: calc(33.333% - 6px);
        max-width: calc(33.333% - 6px);
    }
    
    .step-circle {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
        max-width: 80px;
        margin: 0 auto;
        padding-top: 10px;
    }
    
    .step-number {
        font-size: 14px;
        margin-bottom: 2px;
    }
    
    .step-text {
        font-size: 10px;
        margin-bottom: 3px;
    }
    
    .step-icon-wrapper {
        width: 30px;
        height: 30px;
        bottom: 3px;
    }
    
    .equipment-item {
        flex: 0 0 100%;
        min-width: 100%;
        max-width: 100%;
    }
    
    .equipment-item img {
        height: auto;
        object-fit: contain;
        object-position: center;
    }
    
    .page-banner {
        margin-top: 55px;
        height: 150px;
    }
    
    .page-banner-container {
        bottom: 15px;
        padding: 0 15px;
    }
    
    .page-banner-title {
        font-size: 18px;
    }
    
    .page-breadcrumb {
        padding: 12px 0;
    }
    
    .breadcrumb-container {
        padding: 0 12px;
        font-size: 13px;
    }
    
    .page-content-wrapper {
        padding: 20px 12px;
    }
    
    .page-content-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .page-sidebar {
        flex: 0 0 100%;
        width: 100%;
        border-radius: 10px;
    }
    
    .page-sidebar .sidebar-title {
        display: none !important;
    }
    
    .page-sidebar .sidebar-menu,
    .page-sidebar ul.sidebar-menu {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -ms-grid-columns: repeat(2, 1fr) !important;
        gap: 8px !important;
        padding: 15px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-sidebar .sidebar-item,
    .page-sidebar li.sidebar-item {
        margin-bottom: 0 !important;
        width: auto !important;
    }
    
    .page-sidebar .sidebar-item a,
    .page-sidebar li.sidebar-item a {
        padding: 12px 15px !important;
        font-size: 14px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .page-sidebar .sidebar-item a::before {
        left: 8px !important;
    }
    
    .page-sidebar .sidebar-item a:hover {
        transform: translateX(0) !important;
    }
    
    .page-main {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .page-main-content {
        padding: 20px;
        border-radius: 12px;
    }
    
    .page-title {
        font-size: 22px;
        margin-bottom: 20px;
        padding-left: 15px;
    }
    
    .page-title::before {
        width: 3px;
        height: 22px;
    }
    
    .page-text {
        font-size: 16px;
    }
    
    .page-text p {
        padding-left: 15px;
        margin-bottom: 18px;
    }
    
    .page-text p:first-child {
        font-size: 17px;
        padding-left: 0;
    }
    
    .form-title,
    .contact-title {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .form-input,
    .form-textarea {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .form-submit {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .contact-phone {
        font-size: 16px;
    }
    
    /* 图片列表超小屏幕响应式 */
    .image-list-grid {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    .image-list-title {
        padding: 12px !important;
        font-size: 13px !important;
    }
    
    .footer-container {
        padding: 30px 12px;
        gap: 25px;
        flex-wrap: wrap;
    }
    
    .footer-left {
        display: none !important;
        visibility: hidden !important;
        width: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        flex: 0 0 0 !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .footer-center {
        flex: 0 0 100% !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .footer-search {
        display: none !important;
    }
    
    .footer-logo img {
        max-width: 120px;
    }
    
    .footer-qrcode img {
        width: 100px;
        height: 100px;
    }
    
    .footer-phone-number {
        font-size: 20px;
    }
    
    .footer-company-name {
        font-size: 16px;
    }
    
    .footer-address,
    .footer-email,
    .footer-website {
        font-size: 13px;
    }
    
    .footer-menu-title {
        font-size: 16px;
    }
    
    .footer-menu-list a {
        font-size: 13px;
    }
    
    .content-wrapper {
        padding: 25px 10px;
    }
    
    .content-container {
        padding: 15px 12px;
    }
}

/* ========== 产品列表页样式 ========== */
.product-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
}

.filter-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-label {
    font-size: 16px;
    color: #666;
    font-weight: 500;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid #ddd;
    background: #fff;
    color: #666;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.filter-btn:hover,
.filter-btn.active {
    background: #2e3185;
    color: #fff;
    border-color: #2e3185;
}

.filter-right {
    color: #666;
    font-size: 14px;
}

.product-count strong {
    color: #2e3185;
    font-weight: 600;
}

.product-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.product-list-item {
    display: block;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.product-list-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2e3185 0%, #4a4fa8 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-list-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(46, 49, 133, 0.2);
}

.product-list-item:hover::before {
    transform: scaleX(1);
}

.product-list-image {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
    background: #f5f5f5;
}

.product-list-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.product-list-item:hover .product-list-image img {
    transform: scale(1.1);
}

.product-list-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(46, 49, 133, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-list-item:hover .product-list-overlay {
    opacity: 1;
}

.product-list-btn {
    padding: 12px 30px;
    background: #fff;
    color: #2e3185;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
}

.product-list-info {
    padding: 25px;
}

.product-list-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin: 0 0 12px 0;
    line-height: 1.4;
}

.product-list-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 15px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
}

.product-list-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.product-tag {
    padding: 4px 12px;
    background: #f0f4ff;
    color: #2e3185;
    border-radius: 12px;
    font-size: 12px;
}

.product-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #f0f0f0;
}

.pagination-btn {
    padding: 10px 20px;
    border: 1px solid #ddd;
    background: #fff;
    color: #666;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.pagination-btn:hover {
    background: #2e3185;
    color: #fff;
    border-color: #2e3185;
}

.pagination-numbers {
    display: flex;
    gap: 8px;
}

.pagination-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    background: #fff;
    color: #666;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.pagination-number:hover,
.pagination-number.active {
    background: #2e3185;
    color: #fff;
    border-color: #2e3185;
}

/* ========== 图片列表样式 ========== */
.image-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.image-list-item {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.image-list-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(46, 49, 133, 0.2);
}

.image-list-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 比例 */
    overflow: hidden;
    background: #f5f5f5;
}

.image-list-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
}

.image-list-item:hover .image-list-image {
    transform: scale(1.05);
}

.image-list-title {
    padding: 20px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    text-align: center;
    line-height: 1.4;
}

/* ========== 图片放大 Lightbox 样式 ========== */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-overlay.active {
    display: flex;
    opacity: 1;
}

.lightbox-container {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.lightbox-title {
    margin-top: 20px;
    color: #fff;
    font-size: 18px;
    font-weight: 500;
    text-align: center;
    padding: 0 20px;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 10px;
    transition: transform 0.3s ease;
    z-index: 10001;
}

.lightbox-close:hover {
    transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 15px 20px;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-prev {
    left: -80px;
}

.lightbox-next {
    right: -80px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev:disabled,
.lightbox-next:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ========== 产品详情页样式 ========== */
.product-detail-wrapper {
    width: 100%;
}

.product-detail-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: none;
}

.product-detail-image {
    position: sticky;
    top: 100px;
}

.product-image-main {
    width: 100%;
    height: 500px;
    background: #f5f5f5;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
}

.product-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-image-dots {
    display: none;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.product-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-dot:hover {
    background: #999;
    transform: scale(1.2);
}

.product-dot.active {
    background: #2e3185;
    width: 12px;
    height: 12px;
}

.product-image-thumbs {
    display: flex;
    gap: 15px;
    justify-content: flex-start;
}

.product-thumb {
    /* 固定为一行 5 个位置，并把 4 个间距一并计算，避免总宽度超出大图容器 */
    flex: 0 0 calc((100% - 4 * 15px) / 5);
    max-width: calc((100% - 4 * 15px) / 5);
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.product-thumb:hover,
.product-thumb.active {
    border-color: #2e3185;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(46, 49, 133, 0.2);
}

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

.product-detail-info {
    padding-left: 20px;
}

.product-detail-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin: 0 0 20px 0;
    line-height: 1.3;
}

.product-detail-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.product-category-tag {
    padding: 6px 16px;
    background: linear-gradient(135deg, #2e3185 0%, #4a4fa8 100%);
    color: #fff;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.product-category-tag:hover {
    background: linear-gradient(135deg, #4a4fa8 0%, #2e3185 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 49, 133, 0.3);
}

.product-code {
    font-size: 14px;
    color: #999;
}

.product-detail-intro {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
    border-radius: 12px;
    border-left: 4px solid #2e3185;
}

.product-detail-intro p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin: 0;
}

.product-detail-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #f8f9ff;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: #e8ebff;
    transform: translateX(5px);
}

.feature-item svg {
    flex-shrink: 0;
}

.feature-item span {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.product-detail-action {
    margin-top: 30px;
}

.product-inquiry-btn {
    display: inline-block;
    padding: 16px 40px;
    background: linear-gradient(135deg, #2e3185 0%, #4a4fa8 100%);
    color: #fff;
    border-radius: 30px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(46, 49, 133, 0.3);
}

.product-inquiry-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(46, 49, 133, 0.4);
}

.product-detail-tabs {
    margin-bottom: 50px;
}

.product-description-section {
    margin-top: 10px;
    padding-top: 10px;
    border-top: none;
}

.product-description-title {
    font-size: 24px;
    color: #333;
    margin: 0 0 25px 0;
    font-weight: 600;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.product-description-content {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

.product-description-content p {
    margin: 0 0 20px 0;
}

.product-description-content ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.product-description-content ul li {
    padding: 12px 0 12px 25px;
    position: relative;
    font-size: 16px;
    line-height: 1.6;
    color: #555;
}

.product-description-content ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #2e3185;
    font-weight: bold;
}

.product-tabs-nav {
    display: flex;
    gap: 10px;
    border-bottom: 2px solid #f0f0f0;
    margin-bottom: 30px;
}

.product-tab-btn {
    padding: 15px 30px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: #666;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    bottom: -2px;
}

.product-tab-btn:hover,
.product-tab-btn.active {
    color: #2e3185;
    border-bottom-color: #2e3185;
}

.product-tabs-content {
    min-height: 300px;
}

.product-tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.product-tab-panel.active {
    display: block;
}

.product-tab-panel h3 {
    font-size: 22px;
    color: #333;
    margin: 0 0 20px 0;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.product-tab-panel p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 15px;
}

.product-tab-panel ul {
    list-style: none;
    padding: 0;
}

.product-tab-panel ul li {
    padding: 12px 0 12px 25px;
    position: relative;
    font-size: 16px;
    line-height: 1.6;
    color: #555;
}

.product-tab-panel ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #2e3185;
    font-weight: bold;
}

.product-specs-table {
    display: grid;
    gap: 0;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.specs-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-bottom: 1px solid #e0e0e0;
}

.specs-row:last-child {
    border-bottom: none;
}

.specs-row:nth-child(even) {
    background: #f8f9ff;
}

.specs-label {
    padding: 15px 20px;
    background: #f5f5f5;
    font-weight: 600;
    color: #333;
    border-right: 1px solid #e0e0e0;
}

.specs-value {
    padding: 15px 20px;
    color: #666;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.application-item {
    padding: 25px;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
    border-radius: 12px;
    border: 1px solid #e8e9f0;
    transition: all 0.3s ease;
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(46, 49, 133, 0.15);
    border-color: #2e3185;
}

.application-item h4 {
    font-size: 18px;
    color: #2e3185;
    margin: 0 0 10px 0;
    font-weight: 600;
}

.application-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.related-products {
    margin-top: 50px;
    padding-top: 40px;
    border-top: 2px solid #f0f0f0;
}

.related-title {
    font-size: 24px;
    color: #333;
    margin: 0 0 30px 0;
    font-weight: 600;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-product-item {
    display: block;
    text-decoration: none;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.related-product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(46, 49, 133, 0.2);
}

.related-product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.related-product-item h4 {
    padding: 20px;
    font-size: 16px;
    color: #333;
    margin: 0;
    text-align: center;
    font-weight: 500;
}

/* ========== 文章列表页样式 ========== */
.article-list-grid {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.article-list-item {
    display: flex;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-decoration: none;
    border: 1px solid rgba(46, 49, 133, 0.08);
    position: relative;
}

.article-list-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2e3185 0%, #3791ff 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.article-list-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(46, 49, 133, 0.15);
    border-color: rgba(46, 49, 133, 0.2);
}

.article-list-item:hover::before {
    transform: scaleX(1);
}

.article-list-image {
    flex: 0 0 280px;
    width: 280px;
    overflow: hidden;
    background: #f5f5f5;
    position: relative;
}

.article-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-list-item:hover .article-list-image img {
    transform: scale(1.1);
}

.article-list-info {
    flex: 1;
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-list-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 14px;
    color: #999;
}

.article-list-date {
    position: relative;
    padding-left: 20px;
}

.article-list-date::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.article-list-category {
    position: relative;
    padding-left: 20px;
    color: #2e3185;
    font-weight: 500;
}

.article-list-category::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232e3185' stroke-width='2'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.article-list-title {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin: 0 0 15px 0;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-list-item:hover .article-list-title {
    color: #2e3185;
}

.article-list-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin: 0 0 15px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.article-list-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #2e3185;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: auto;
}

.article-list-item:hover .article-list-more {
    transform: translateX(5px);
    color: #3791ff;
}

/* ========== 文章详情页样式 ========== */
.article-detail-wrapper {
    width: 100%;
}

.article-detail-header {
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 2px solid #f0f0f0;
}

.article-detail-title {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin: 0 0 20px 0;
    line-height: 1.4;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.article-detail-meta {
    display: flex;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #666;
}

.article-detail-date,
.article-detail-category,
.article-detail-views {
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-detail-category a {
    color: #2e3185;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-detail-category a:hover {
    color: #3791ff;
}

.article-detail-content {
    margin-bottom: 40px;
}

.article-detail-image {
    width: 100%;
    margin-bottom: 30px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.article-detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

.article-detail-text {
    font-size: 16px;
    line-height: 2;
    color: #444;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.article-detail-text p {
    margin: 0 0 20px 0;
}

.article-detail-text h3 {
    font-size: 24px;
    font-weight: 600;
    color: #2e3185;
    margin: 35px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.article-detail-text ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-detail-text li {
    margin-bottom: 12px;
    line-height: 1.8;
}

.article-detail-tags {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 20px 0;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 30px;
}

.article-tag-label {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.article-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
    color: #2e3185;
    border-radius: 20px;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(46, 49, 133, 0.1);
}

.article-tag:hover {
    background: linear-gradient(135deg, #2e3185 0%, #3791ff 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 49, 133, 0.3);
}

.article-detail-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 25px 0;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 40px;
}

.article-nav-prev,
.article-nav-next {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.article-nav-next {
    text-align: right;
    align-items: flex-end;
}

.article-nav-label {
    font-size: 13px;
    color: #999;
}

.article-nav-link {
    font-size: 15px;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.article-nav-link:hover {
    color: #2e3185;
}

.article-related {
    margin-top: 50px;
    padding-top: 40px;
    border-top: 2px solid #f0f0f0;
}

.article-related-title {
    font-size: 24px;
    color: #333;
    margin: 0 0 30px 0;
    font-weight: 600;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.article-related-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.article-related-item {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-decoration: none;
    border: 1px solid rgba(46, 49, 133, 0.08);
}

.article-related-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(46, 49, 133, 0.15);
    border-color: rgba(46, 49, 133, 0.2);
}

.article-related-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: #f5f5f5;
}

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

.article-related-item:hover .article-related-image img {
    transform: scale(1.1);
}

.article-related-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-related-title-text {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0 0 12px 0;
    line-height: 1.4;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-related-item:hover .article-related-title-text {
    color: #2e3185;
}

.article-related-date {
    font-size: 13px;
    color: #999;
}

/* 产品页面响应式 */
@media (max-width: 768px) {
    .product-filter-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .product-list-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .image-list-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .product-detail-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-detail-image {
        position: static;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .product-image-main {
        width: 100%;
        max-width: 100%;
        height: auto;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .product-image-main img {
        width: 100%;
        height: auto;
        display: block;
        object-fit: contain;
        box-sizing: border-box;
    }
    
    .product-image-thumbs {
        display: none !important;
    }
    
    .product-image-dots {
        display: flex !important;
    }
    
    .product-detail-info {
        padding-left: 0;
    }
    
    .product-detail-features {
        grid-template-columns: 1fr;
    }
    
    .product-tabs-nav {
        flex-wrap: wrap;
    }
    
    .product-tab-btn {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .specs-row {
        grid-template-columns: 1fr;
    }
    
    .specs-label {
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .application-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 文章列表响应式 */
    .article-list-item {
        flex-direction: column;
    }
    
    .article-list-image {
        flex: 0 0 100%;
        width: 100%;
        height: 220px;
    }
    
    .article-list-info {
        padding: 20px;
    }
    
    .article-list-title {
        font-size: 20px;
    }
    
    /* 文章详情响应式 */
    .article-detail-title {
        font-size: 26px;
    }
    
    .article-detail-meta {
        gap: 15px;
    }
    
    .article-detail-nav {
        flex-direction: column;
        gap: 15px;
    }
    
    .article-nav-next {
        text-align: left;
        align-items: flex-start;
    }
    
    .article-related-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .page-main-content {
        padding: 15px !important;
    }
    
    .product-list-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    
    .product-list-item {
        border-radius: 12px !important;
    }
    
    .product-list-info {
        padding: 12px !important;
    }
    
    .product-list-title {
        font-size: 14px !important;
        margin: 0 !important;
        line-height: 1.3 !important;
    }
    
    .product-list-desc {
        display: none !important;
    }
    
    /* 图片列表响应式 */
    .image-list-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }
    
    .image-list-title {
        padding: 15px !important;
        font-size: 14px !important;
    }
    
    .lightbox-prev {
        left: 10px !important;
    }
    
    .lightbox-next {
        right: 10px !important;
    }
    
    .lightbox-close {
        top: 10px !important;
        right: 10px !important;
    }
    
    .product-image-main {
        height: 250px;
    }
    
    .product-image-thumbs {
        gap: 10px;
    }
    
    .product-thumb {
        height: 80px;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    /* 文章列表响应式 */
    .article-list-item {
        flex-direction: column;
    }
    
    .article-list-image {
        flex: 0 0 100%;
        width: 100%;
        height: 200px;
    }
    
    .article-list-info {
        padding: 20px;
    }
    
    .article-list-title {
        font-size: 18px;
    }
    
    .article-list-desc {
        font-size: 14px;
        -webkit-line-clamp: 2;
    }
    
    /* 文章详情响应式 */
    .article-detail-title {
        font-size: 22px;
    }
    
    .article-detail-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .article-detail-nav {
        flex-direction: column;
    }
    
    .article-nav-next {
        text-align: left;
        align-items: flex-start;
    }
    
    .article-related-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}