/* 华电新能风格 - 北宇能源官网样式 */

:root {
    --primary-color: #0066b3;
    --primary-dark: #004d8a;
    --primary-light: #3385c6;
    --accent-color: #00a650;
    --accent-light: #00c261;
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --text-light: #999;
    --bg-white: #fff;
    --bg-light: #f5f7fa;
    --bg-gray: #f0f2f5;
    --border-color: #e8e8e8;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

.main-nav a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.lang-select {
    padding: 8px 32px 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-white);
    font-size: 14px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

/* Banner区域 */
.hero-banner {
    height: 100vh;
    min-height: 700px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0066b3 0%, #004d8a 50%, #003d6e 100%);
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.banner-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--bg-white);
    padding: 0 20px;
    margin-top: 80px;
}

.banner-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.banner-subtitle {
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 30px;
    opacity: 0.95;
}

.banner-desc {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.8;
}

.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background: var(--accent-color);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,166,80,0.3);
}

.btn-outline {
    display: inline-block;
    padding: 14px 36px;
    background: transparent;
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    border: 2px solid rgba(255,255,255,0.5);
    transition: var(--transition);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--bg-white);
}

/* 数据展示区域 */
.data-section {
    padding: 60px 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.data-item {
    text-align: center;
    padding: 30px 20px;
}

.data-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.data-number span {
    font-size: 24px;
    font-weight: 400;
}

.data-label {
    font-size: 16px;
    color: var(--text-gray);
    margin-top: 10px;
}

/* 业务板块 */
.business-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(0,102,179,0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-gray);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.business-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.business-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.business-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.business-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-more {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.card-more:hover {
    color: var(--primary-dark);
}

/* 关于我们区域 */
.about-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.4;
    color: var(--text-dark);
}

.about-content p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 30px;
}

.about-features {
    list-style: none;
    margin-bottom: 30px;
}

.about-features li {
    font-size: 16px;
    color: var(--text-dark);
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img-placeholder {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 55px;
}

/* 新闻区域 */
.news-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.news-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.news-date {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-gray);
    color: var(--text-gray);
    font-size: 13px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.news-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-card h3 a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.news-card h3 a:hover,
.news-card:hover h3 a {
    color: var(--primary-color);
}

.news-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 底部 */
.footer {
    background: #1a1a2e;
    color: var(--bg-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 8px;
    font-size: 14px;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--bg-white);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .data-grid,
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        padding: 20px;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav a {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .lang-select {
        font-size: 12px;
        padding: 6px 24px 6px 10px;
    }
    
    /* Banner移动端适配 */
    .hero-banner {
        min-height: 500px;
        height: auto;
        padding: 100px 0 60px;
    }
    
    .banner-content {
        margin-top: 60px;
        padding: 0 15px;
    }
    
    .banner-title {
        font-size: 32px;
        margin-bottom: 8px;
    }
    
    .banner-subtitle {
        font-size: 22px;
        margin-bottom: 20px;
    }
    
    .banner-desc {
        font-size: 16px;
        margin-bottom: 30px;
        line-height: 1.6;
    }
    
    .banner-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn-primary, .btn-outline {
        padding: 12px 30px;
        font-size: 15px;
        width: 200px;
        text-align: center;
    }
    
    /* 数据区域移动端 */
    .data-section {
        padding: 40px 0;
    }
    
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .data-item {
        padding: 20px 10px;
    }
    
    .data-number {
        font-size: 32px;
    }
    
    .data-number span {
        font-size: 16px;
    }
    
    .data-label {
        font-size: 13px;
    }
    
    /* 业务板块移动端 */
    .business-section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .section-desc {
        font-size: 15px;
        padding: 0 15px;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .business-card {
        padding: 30px 20px;
    }
    
    /* 关于我们移动端 */
    .about-section {
        padding: 60px 0;
    }
    
    .about-content h2 {
        font-size: 24px;
    }
    
    .about-content p {
        font-size: 15px;
    }
    
    .about-features li {
        font-size: 15px;
    }
    
    .about-img-placeholder {
        height: 250px;
    }
    
    /* 新闻区域移动端 */
    .news-section {
        padding: 60px 0;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .news-card {
        padding: 25px 20px;
    }
    
    .news-card h3 {
        font-size: 16px;
    }
    
    /* 底部移动端 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 15px;
    }
    
    /* 页面Banner移动端 */
    .page-banner {
        height: 280px;
        margin-top: 60px;
    }
    
    .page-banner h1 {
        font-size: 28px;
    }
    
    .page-banner p {
        font-size: 15px;
        padding: 0 15px;
    }
    
    .page-content {
        padding: 40px 0;
    }
}

/* 其他页面通用样式 */
.page-banner {
    height: 400px;
    background: linear-gradient(135deg, #0066b3 0%, #004d8a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--bg-white);
    margin-top: 80px;
}

.page-banner h1 {
    font-size: 48px;
    font-weight: 700;
}

.page-banner p {
    font-size: 18px;
    opacity: 0.9;
    margin-top: 15px;
}

.page-content {
    padding: 80px 0;
}

.card {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
}

tr:hover {
    background: var(--bg-light);
}

/* 关于页面样式 */
.about-detail {
    max-width: 900px;
    margin: 0 auto;
}

.about-intro {
    text-align: center;
    margin-bottom: 60px;
}

.about-intro h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.about-intro p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.mv-card {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 8px;
    text-align: center;
}

.mv-card h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.mv-card p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
}

.about-features h3 {
    font-size: 24px;
    text-align: center;
    margin-bottom: 40px;
}

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

.feature-item {
    padding: 25px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.feature-item strong {
    display: block;
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 联系页面样式 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 40px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item strong {
    display: block;
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 15px;
    color: var(--text-gray);
    margin-bottom: 5px;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 8px;
}

.contact-form h3 {
    font-size: 20px;
    margin-bottom: 25px;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* 解决方案页面 */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.solution-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.solution-step {
    width: 50px;
    height: 50px;
    line-height: 50px;
    background: var(--primary-color);
    color: white;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 20px;
}

.solution-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.solution-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 子公司部分样式 */
.subsidiary-section {
    background: var(--bg-light);
    padding: 50px;
    border-radius: 8px;
    margin-bottom: 60px;
}

.subsidiary-section h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.subsidiary-section p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.qualification-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 25px;
}

.qualification-tags span {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    font-size: 13px;
    border-radius: 20px;
}

/* 业务板块设备制造部分 */
.business-equipment-section {
    background: var(--bg-light);
    padding: 60px;
    border-radius: 8px;
    margin-top: 60px;
}

.business-equipment-section h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.business-equipment-section > p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 40px;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.equipment-item {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.equipment-item strong {
    display: block;
    font-size: 16px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.equipment-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

.business-equipment-section .certification-list {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 8px;
}

.business-equipment-section .certification-list h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.business-equipment-section .certification-list ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    list-style: none;
}

.business-equipment-section .certification-list li {
    color: var(--text-dark);
    font-size: 14px;
    padding: 5px 0;
}

/* 重点项目页面样式 */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.project-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.project-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 25px 40px;
}

.project-type {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 10px;
}

.project-header h3 {
    font-size: 24px;
    font-weight: 600;
}

.project-body {
    padding: 40px;
}

.project-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
}

.project-info p {
    font-size: 14px;
    color: var(--text-gray);
    margin: 0;
}

.project-info strong {
    color: var(--text-dark);
}

.project-desc {
    margin-bottom: 25px;
}

.project-desc p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.project-desc p:last-child {
    margin-bottom: 0;
}

.project-benefit {
    background: var(--bg-light);
    padding: 20px 25px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-dark);
}

.project-benefit strong {
    color: var(--primary-color);
}

/* 业务板块详情卡片 */
.business-detail-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
}

.business-detail-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    transition: var(--transition);
}

.business-detail-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.business-icon-large {
    font-size: 36px;
    display: inline-block;
    margin-right: 12px;
    vertical-align: middle;
}

.business-detail-card h3 {
    display: inline-block;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    vertical-align: middle;
    margin: 0;
}

.business-detail-card > p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin: 20px 0;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.business-detail-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.business-detail-card li {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border-color);
    position: relative;
    padding-left: 20px;
}

.business-detail-card li:last-child {
    border-bottom: none;
}

.business-detail-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

.business-detail-card li strong {
    color: var(--text-dark);
    font-weight: 500;
}

/* 新闻列表页面样式 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item-large {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 35px 40px;
    transition: var(--transition);
}

.news-item-large:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
    transform: translateX(5px);
}

.news-item-large .news-date {
    display: inline-block;
    padding: 5px 14px;
    background: var(--bg-light);
    color: var(--text-gray);
    font-size: 13px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.news-item-large h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-item-large h2 a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.news-item-large h2 a:hover {
    color: var(--primary-color);
}

.news-item-large:hover h2 a {
    color: var(--primary-color);
}

.news-item-large p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.read-more {
    display: inline-block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--primary-dark);
    transform: translateX(5px);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 50px;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 16px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-gray);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
}

.page-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.page-btn.next {
    padding: 0 20px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .business-detail-card {
        padding: 25px;
    }

    .business-detail-card h3 {
        font-size: 20px;
        display: block;
        margin-top: 15px;
    }

    .business-icon-large {
        display: block;
        margin-bottom: 10px;
    }

    .news-item-large {
        padding: 25px;
    }

    .news-item-large h2 {
        font-size: 17px;
    }

    .news-item-large p {
        font-size: 14px;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .page-btn {
        min-width: 36px;
        height: 36px;
        font-size: 13px;
    }
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .mission-vision,
    .features-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .subsidiary-section {
        padding: 30px;
    }
    
    .equipment-grid {
        grid-template-columns: 1fr;
    }
    
    .business-equipment-section .certification-list ul {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-info {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-intro h2 {
        font-size: 24px;
    }
    
    .mv-card {
        padding: 25px;
    }
    
    .feature-item {
        padding: 20px;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .subsidiary-section {
        padding: 25px;
    }
    
    .subsidiary-section h3 {
        font-size: 20px;
    }
    
    .qualification-tags span {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .business-equipment-section {
        padding: 30px;
    }
    
    .business-equipment-section h3 {
        font-size: 22px;
    }
    
    .equipment-grid {
        grid-template-columns: 1fr;
    }
    
    .equipment-item {
        padding: 20px;
    }
    
    .business-equipment-section .certification-list {
        padding: 25px;
    }
    
    .business-equipment-section .certification-list ul {
        grid-template-columns: 1fr;
    }
    
    .project-header {
        padding: 20px 25px;
    }
    
    .project-header h3 {
        font-size: 18px;
    }
    
    .project-body {
        padding: 25px;
    }
    
    .project-info {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}