:root {
    --primary: #2A6DFF; /* 科技蓝 */
    --secondary: #FF7A45; /* 活力橙 */
    --accent: #00D1B2; /* 清新青 */
    --dark: #0a1a32;
    --light: #FFFFFF;
    --light-bg: #F5F7FA;
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #999999;
    --border: #E4E7ED;
    --dark-gray: #2c3e50;
    --primary-dark: #0a1f3a;
    --primary-blue: #0073e6;
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    --card-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --tech-gradient: linear-gradient(135deg, #2a6dff 0%, #00d1b2 100%);

    --success: #67C23A;
    --warning: #E6A23C;
    --danger: #F56C6C;
    --info: #909399;
    --text-primary: #303133;
    --text-regular: #606266;
    --text-secondary: #909399;
    --border-base: #DCDFE6;
    --border-light: #E4E7ED;
    --border-lighter: #EBEEF5;
    --background-base: #F5F7FA;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

header.scrolled {
    padding: 12px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo > img {
    width: 580px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 17px;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--primary);
}

.cta-button {
    background: linear-gradient(135deg, var(--primary) 0%, #3D85FF 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(42, 109, 255, 0.3);
}

/* 轮播图区域 */
.slider {
    position: relative;
    height: 90vh;
    overflow: hidden;
    margin-top: 98px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(42, 109, 255, 0.3);
}

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

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(10, 26, 50, 0.8) 0%, rgba(10, 26, 50, 0.6) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
}

.slide-content h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #FFF 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 1px;
}

.slide-content p {
    font-size: 1.5rem;
    color: #e0e0e0;
    margin-bottom: 30px;
    font-weight: 400;
    max-width: 600px;
}

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

.slider-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 10;
}

.slider-nav button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.slider-nav button:hover {
    background: var(--accent);
    transform: scale(1.1);
}

/* 企业简介部分 */
.about-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
}

.about-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.about-text {
    flex: 1;
    background: var(--light);
    padding: 55px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.about-text p {
    color: var(--text-medium);
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--light-bg);
    padding: 15px;
    border-radius: 12px;
}

.about-feature i {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.about-feature div h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

.about-image {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.company-building {
    height: 300px;
    background: linear-gradient(45deg, #e6f0ff, #d4e5ff);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
}

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

.map-container {
    height: 300px;
    background: #f1f1f1;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
}

#amap-container {
    width: 100%;
    height: 100%;
}

.map-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.9);
    padding: 15px;
    border-radius: 8px;
    max-width: 300px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.map-overlay h4 {
    color: var(--primary);
    margin-bottom: 10px;
}

.map-overlay p {
    margin-bottom: 8px;
    color: var(--text-medium);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.map-overlay i {
    color: var(--accent);
    min-width: 20px;
}

/* 服务部分 - 开篇模式 */
.section {
    padding: 100px 0;
}

.services-section {
    background-color: var(--light-bg);
    padding: 100px 0;
}

.service-card h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.service-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-top: 40px;
}

.service-features li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.service-features li i {
    color: var(--light);
    font-size: 18px;
}

/* 实验室部分 */
.lab-section {
    background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
    position: relative;
    overflow: hidden;
    border-radius: 20px;
}

.lab-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.lab-text {
    flex: 1;
}

.lab-image {
    flex: 1;
    height: 500px;
    background: linear-gradient(45deg, #e6f0ff, #d4e5ff);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.lab-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 30% 30%, rgba(0, 209, 178, 0.1) 0%, transparent 40%),
            radial-gradient(circle at 70% 70%, rgba(255, 122, 69, 0.1) 0%, transparent 40%);
}

.lab-image-content {
    text-align: center;
    z-index: 2;
    padding: 30px;
}

.lab-image i {
    font-size: 100px;
    color: var(--primary);
    margin-bottom: 20px;
}

.lab-image h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.lab-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.lab-feature {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.lab-feature i {
    color: var(--accent);
    font-size: 24px;
    margin-top: 5px;
}

.lab-feature div h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

/* 证书部分 */
.certificates {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.cert-card {
    background: var(--light);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
}

.cert-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.cert-icon {
    width: 100px;
    margin-bottom: 20px;
}

.cert-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.cert-card p {
    color: var(--text-medium);
}

/* 快速连接模块 */
.quick-access-section {
    background: linear-gradient(135deg, #0a1f3a 0%, #0a1a32 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.quick-access-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 10% 20%, rgba(42, 109, 255, 0.1) 0%, transparent 20%),
            radial-gradient(circle at 90% 80%, rgba(0, 209, 178, 0.1) 0%, transparent 20%);
}

.access-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.access-card {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 10px 0;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    z-index: 2;
    max-width: 500px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.access-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.access-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.access-card .access-icon img{
    width: 100px;
}

.access-card h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.access-card p {
    color: var(--text-medium);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.access-button-container {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.access-button {
    display: inline-block;
    padding: 8px 14px;
    background: var(--primary);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(42, 109, 255, 0.3);
}

.access-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(42, 109, 255, 0.4);
}

.access-card.testing .access-button {
    background: linear-gradient(135deg, #2a6dff 0%, #3d85ff 100%);
}

.access-card.supervision .access-button {
    background: linear-gradient(135deg, #00d1b2 0%, #00e6c3 100%);
}

/* Partners Section */
.partners-section {
    padding: 70px 0;
    position: relative;
    margin-bottom: 70px;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.partner-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    transition: all 0.3s ease;
    border: 1px solid var(--light);
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 115, 230, 0.15);
    border-color: var(--primary-blue);
}

.partner-logo {
    max-width: 100%;
    max-height: 80px;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.partner-card:hover .partner-logo {
    filter: grayscale(0%);
}

/* 产业链展示区域 */
.industry-chain {
    padding: 0 15px 80px;
}

.chain-list {
    display: flex;
    justify-content: space-between;
    height: 600px;
    gap: 15px;
}

.chain-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.chain-item a {
    display: block;
    height: 100%;
    text-decoration: none;
}

.chain-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
    z-index: 1;
}

.chain-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, var(--primary-dark) 0%, transparent 100%);
    z-index: 2;
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.chain-icon img {
    max-width: 100%;
    max-height: 100%;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

.chain-content {
    position: absolute;
    left: 40px;
    top: 255px;
    z-index: 3;
    transition: all 0.6s ease;
}

.chain-content .content1 {
    font-size: 20px;
    font-weight: 700;
    color: white;
    transition: all 0.6s ease;
}

.chain-details {
    position: absolute;
    left: 40px;
    top: 180px;
    width: 80%;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
    z-index: 3;
}

.chain-details .content3 {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 25px;
}

.chain-details .cta-button {
    width: fit-content;
    margin: 20px auto;
}

/* 默认布局 - 一大三小 */
.chain-item:first-child {
    width: 44.3%;
}

.chain-item:not(:first-child) {
    width: 17.5%;
}

/* 悬停状态 */
.chain-item.active {
    width: 44.3% !important;
}

.chain-item:not(.active) {
    width: 17.5% !important;
}

.chain-item.active .chain-content {
    top: 35px;
}

.chain-item.active .chain-content .content1 {
    font-size: 48px;
}

.chain-item.active .chain-details {
    opacity: 1;
    transform: translateY(0);
}

.chain-item:hover .chain-bg {
    transform: scale(1.05);
}

/* 页脚 */
footer {
    background: var(--dark);
    padding: 70px 0 30px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: flex;
    margin-bottom: 50px;
    justify-content: space-between;
    flex-direction: row;
    align-items: center;
}

.footer-col h4 {
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
    color: var(--light);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent);
}

.footer-col p {
    color: var(--text-light);
    margin-bottom: 50px;
    margin-top: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
    color: var(--text-light);
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--light-bg);
    color: var(--primary);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--text-light);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 页面内容区域 */
.page-content {
    margin-top: 120px;
    padding: 60px 0;
}

.breadcrumb {
    margin-bottom: 30px;
    font-size: 15px;
    color: var(--text-medium);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb i {
    margin: 0 10px;
    font-size: 12px;
}

/* 新闻列表部分 */
.news-section-index {
    background: white;
    padding: 40px;
    box-shadow: var(--card-shadow);
    margin-bottom: 50px;
}

.news-section {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--card-shadow);
    margin-bottom: 50px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.more-news {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--accent), var(--primary));
    border-radius: 2px;
}

.section-title p {
    color: var(--dark-gray);
    max-width: 800px;
    margin: 20px auto 0;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 115, 230, 0.15);
}

.news-img {
    height: 200px;
    width: 100%;
    object-fit: cover;
    display: block;
}

.news-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    color: var(--primary-blue);
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.news-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    background: var(--light-bg);
    color: var(--primary);
    font-size: 0.8rem;
    margin-left: 15px;
}

.news-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
    line-height: 1.4;
    transition: var(--transition);
}

.news-title:hover {
    color: var(--primary);
}

.news-excerpt {
    color: var(--dark-gray);
    margin-bottom: 20px;
    flex: 1;
}

.read-more {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    text-decoration: underline;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    list-style: none;
    gap: 10px;
}

.pagination li {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: white;
    color: var(--text-medium);

    font-weight: 500;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.pagination li a {
    text-decoration: none;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 38px;
    border-radius: 8px;
    background: white;
    font-weight: 500;
    transition: var(--transition);
}

.pagination li a:hover,
.pagination li.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination li.disabled {
   display: none;
}

/* 新闻详情部分 */
.news-detail-container {
    background: white;
    border-radius: 16px;
    padding: 50px;
    box-shadow: var(--card-shadow);
    margin-bottom: 50px;
}

.news-header {
    text-align: center;
    margin-bottom: 40px;
}

.news-header .news-date {
    font-size: 1rem;
    margin-bottom: 15px;
}

.news-header h1 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
    line-height: 1.3;
}

.news-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    color: var(--text-medium);
    font-size: 0.95rem;
}

.news-meta div {
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-meta i {
    color: var(--accent);
}

.news-image {
    width: 100%;
    height: 450px;
    border-radius: 16px;
    overflow: hidden;
    margin: 40px 0;
}

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

.news-body {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

.news-body p {
    margin-bottom: 25px;
}

.news-body h2, .news-body h3 {
    color: var(--primary);
    margin: 40px 0 20px;
    position: relative;
}

.news-body h2::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

.news-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 20px 30px;
    background: var(--light-bg);
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.news-body ul, .news-body ol {
    margin: 20px 0;
    padding-left: 30px;
}

.news-body li {
    margin-bottom: 10px;
}

.news-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 50px 0;
}

.gallery-item {
    height: 250px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.related-news {
    margin-top: 60px;
}

.related-title {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border);
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 25px;
    background: var(--light-bg);
    border-radius: 50px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    margin-top: 30px;
}

.back-button:hover {
    background: var(--primary);
    color: white;
}

/* 动画效果 */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

.form-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 40px;
}

.form-section {
    padding: 30px;
    border-bottom: 1px solid var(--border-lighter);
}

.form-section:last-child {
    border-bottom: none;
}

.entrust-section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
}

.entrust-section-title i {
    background: var(--primary);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.form-group {
    margin-bottom: 22px;
}

.form-label {
    display: block;
    font-size: 14px;
    color: var(--text-regular);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-label.required::after {
    content: '*';
    color: var(--danger);
    margin-left: 4px;
}

.form-control {
    width: 100%;
    height: 40px;
    padding: 0 15px;
    border: 1px solid var(--border-base);
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.3s;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.2);
}

textarea.form-control {
    height: 100px;
    padding: 12px 15px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    accent-color: var(--primary);
    cursor: pointer;
}

.checkbox-item label {
    font-size: 14px;
    color: var(--text-regular);
    cursor: pointer;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.radio-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.radio-item input[type="radio"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    accent-color: var(--primary);
    cursor: pointer;
}

.radio-item label {
    font-size: 14px;
    color: var(--text-regular);
    cursor: pointer;
}

.upload-area {
    border: 2px dashed var(--border-base);
    border-radius: 6px;
    padding: 40px 20px;
    text-align: center;
    background: var(--background-base);
    transition: all 0.3s;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(64, 158, 255, 0.05);
}

.upload-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 15px;
}

.upload-text {
    margin-bottom: 15px;
}

.upload-text h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.upload-text p {
    font-size: 14px;
    color: var(--text-secondary);
}

.upload-btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-btn:hover {
    background: #66b1ff;
}

.file-list {
    margin-top: 20px;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    margin-bottom: 10px;
}

.file-icon {
    color: var(--primary);
    margin-right: 10px;
    font-size: 20px;
}

.file-info {
    flex: 1;
}

.file-name {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.file-actions {
    display: flex;
    gap: 10px;
}

.file-action {
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
}

.file-action:hover {
    color: var(--primary);
}

.form-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 30px;
}

.form-note {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 20px;
    padding: 0 20px;
}

.form-note a {
    color: var(--primary);
    text-decoration: none;
}

.form-note a:hover {
    text-decoration: underline;
}

.form-hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
    display: block;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 6px rgba(64, 158, 255, 0.3);
}

.btn-primary:hover {
    background: #66b1ff;
    box-shadow: 0 4px 12px rgba(64, 158, 255, 0.4);
}

.btn-reset {
    background: white;
    color: var(--text-regular);
    border: 1px solid var(--border-base);
}

.btn-reset:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.product-name-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.other-input {
    margin-top: 15px;
    display: none;
}

.show-other {
    display: block;
}

.query-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 40px;
    padding: 40px;
}

.query-container .cta-button {
    width: 100%;
}

.result-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-top: 30px;
    display: none;
    animation: fadeIn 0.5s ease;
}

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

.result-header {
    background: linear-gradient(135deg, #2a6dff 0%, #3d85ff 100%);
    padding: 20px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.result-title {
    font-size: 20px;
    font-weight: 600;
}

.result-status {
    background: white;
    color: var(--primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.result-content {
    padding: 30px;
}

.report-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.info-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-light);
}

.no-result {
    text-align: center;
    padding: 60px 30px;
    color: var(--text-secondary);
}

.no-result i {
    font-size: 60px;
    color: var(--info);
    margin-bottom: 20px;
}

.no-result h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.no-result p {
    margin-bottom: 25px;
}

.query-report-footer {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 40px;
    padding: 0 20px;
}

.query-report-footer a {
    color: var(--primary);
    text-decoration: none;
}

.query-report-footer a:hover {
    text-decoration: underline;
}

/* 下载列表样式 */
.download-section {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
    margin-bottom: 50px;
}

.download-header {
    display: grid;
    grid-template-columns: 1fr 75px 0 0;
    background: var(--border-lighter);
    padding: 15px 20px;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.download-item {
    display: grid;
    grid-template-columns: 1fr 100px 0 0;
    padding: 20px;
    align-items: center;
    transition: background-color 0.3s;
    border-bottom: 1px solid var(--border);
}

.download-item:last-child {
    border-bottom: none;
}

.download-item:hover {
    background-color: #f9fbfd;
}

.file-info {
    display: flex;
    align-items: center;
}

.file-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 20px;
}

.file-icon.pdf {
    background: #FFECEC;
    color: #E74C3C;
}

.file-icon.doc, .file-icon.docx {
    background: #E8F0FE;
    color: #4285F4;
}

.file-icon.xls, .file-icon.xlsx {
    background: #E8F7EE;
    color: #0F9D58;
}

.file-icon.zip {
    background: #F3E5F5;
    color: #9C27B0;
}

.file-icon.jpg, .file-icon.jpeg, .file-icon.png, .file-icon.bmp {
    background: #f7f2e8;
    color: #9d750f;
}

.file-details h3 {
    font-size: 16px;
    margin-bottom: 5px;
}

.file-details p {
    font-size: 13px;
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .chain-list {
        height: 500px;
    }

    .chain-content .content1 {
        font-size: 26px;
    }

    .chain-item.active .chain-content .content1 {
        font-size: 36px;
    }

    .chain-overlay {
        padding: 30px;
    }
}

@media (max-width: 992px) {
    .lab-content {
        flex-direction: column;
    }

    .lab-image {
        width: 100%;
    }

    .nav-links {
        display: none;
    }

    .slide-content h1 {
        font-size: 3.5rem;
    }

    .slider {
        height: 80vh;
    }

    .about-content {
        flex-direction: column;
    }

    .company-building, .map-container {
        height: 250px;
    }

    .access-container {
        flex-direction: column;
        align-items: center;
    }

    .access-card {
        max-width: 100%;
    }

    .nav-links {
        display: none;
    }

    .page-content {
        margin-top: 100px;
    }

    .news-detail-container {
        padding: 30px;
    }

    .news-header h1 {
        font-size: 2rem;
    }

    .news-image {
        height: 350px;
    }

    .chain-list {
        flex-wrap: wrap;
        height: auto;
    }

    .chain-item,
    .chain-item:first-child,
    .chain-item:not(:first-child),
    .chain-item.active,
    .chain-item:not(.active) {
        width: 100% !important;
        height: 400px;
        margin-bottom: 20px;
    }

    .section-title {
        padding: 50px 0 30px;
    }

    .section-title .content1 {
        font-size: 28px;
    }

    .chain-details {
        width: 90%;
    }

    .logo > img {
        width: 320px;
        margin-left: -20px;
    }
    /* 汉堡按钮 */
    .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 44px;
        height: 44px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 1100;
        gap: 6px;
        margin-left: 35px;
    }
    .nav-toggle span {
        width: 28px;
        height: 3px;
        background: var(--accent);
        border-radius: 2px;
        transition: var(--transition);
    }
    /* 按钮动画 */
    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* 导航链接 */
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        gap: 0;
    }
    .nav-links.show {
        max-height: 100vh;
        display: block;
    }
    .nav-links li {
        border-bottom: 1px solid var(--border);
    }
    .nav-links a {
        display: block;
        padding: 14px 30px;
        font-size: 16px;
    }
    .nav-links a::after {
        display: none;   /* 去掉桌面下划线 */
    }
    .section-title h2 {
        font-size: 2.8rem;
    }

    .slide-content h1 {
        font-size: 2.5rem;
    }

    .slide-content p {
        font-size: 1.2rem;
    }

    .slider {
        height: 70vh;
        margin-top: 85px;
    }

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

    .about-text {
        padding: 25px;
    }

    .news-list {
        grid-template-columns: 1fr;
    }

    .news-header h1 {
        font-size: 1.8rem;
    }

    .news-image {
        height: 250px;
    }

    .news-body {
        font-size: 1rem;
    }

    .news-gallery {
        grid-template-columns: 1fr;
    }

    .chain-item,
    .chain-item:first-child,
    .chain-item:not(:first-child),
    .chain-item.active,
    .chain-item:not(.active) {
        height: 350px;
    }

    .chain-overlay {
        padding: 20px;
    }

    .chain-content {
        left: 20px;
        top: 20px;
    }

    .chain-content .content1 {
        font-size: 24px;
        margin-top: 10px;
    }

    .chain-item.active .chain-content .content1 {
        font-size: 28px;
    }

    .chain-details {
        left: 20px;
        top: 130px;
    }

    .chain-details .content3 {
        font-size: 16px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-section {
        padding: 20px;
    }

    .form-actions {
        flex-direction: column;
        gap: 15px;
    }

    .product-name-options {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) {
    .nav-toggle { display: none; }
    .nav-links { max-height: none !important; }
}