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

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 页面横幅 */
.news-hero {
    position: relative;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.news-hero::before {
    content: '';
    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='0.05'%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");
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    margin-top: min(8.5vh, 6vw);
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 20px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.3s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 通用章节样式 */
section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 50px;
}

.section-header.center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 15px;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 10px;
}

/* 公司简介 */
.company-intro {
    background: #f8f9fa;
}

.intro-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.intro-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    font-size: 28px;
}

.feature-text {
    font-size: 15px;
    color: #2c3e50;
    font-weight: 500;
}

.intro-image {
    display: flex;
    justify-content: center;
}

.image-wrapper {
    position: relative;
}

.image-box {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    position: relative;
}

.image-box::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    z-index: -1;
}

/* 新闻资讯 */
.tab-buttons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.tab-btn {
    padding: 12px 30px;
    border: 2px solid #e0e0e0;
    background: white;
    color: #666;
    font-size: 16px;
    font-weight: 500;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.news-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.news-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.news-card.featured .news-image {
    height: 100%;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.news-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 6px 16px;
    background: #ff6b6b;
    color: white;
    font-size: 13px;
    font-weight: bold;
    border-radius: 20px;
}

.news-info {
    padding: 25px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.news-date,
.news-category {
    font-size: 14px;
    color: #999;
}

.news-category {
    color: #667eea;
    font-weight: 500;
}

.news-title {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card.featured .news-title {
    font-size: 24px;
}

.news-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 15px;
}

.read-more {
    color: #667eea;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #764ba2;
}

/* 公司成就 */
.achievements-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.achievements-section .section-title {
    color: white;
}

.achievements-section .section-tag {
    background: rgba(255, 255, 255, 0.2);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.achievement-item {
    text-align: center;
    color: white;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.achievement-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
}

.achievement-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.achievement-number {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 8px;
}

.achievement-label {
    font-size: 16px;
    opacity: 0.9;
}

/* 客户评价 */
.testimonials-section {
    background: #f8f9fa;
}

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

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.testimonial-quote {
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 60px;
    color: #667eea;
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-text {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.author-name {
    font-size: 16px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 3px;
}

.author-company {
    font-size: 14px;
    color: #999;
}

/* 联系我们 */
.contact-section {
    background: white;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
}

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

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-label {
    font-size: 14px;
    color: #999;
    margin-bottom: 5px;
}

.contact-value {
    font-size: 16px;
    color: #2c3e50;
    font-weight: 500;
}

.contact-map {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.contact-map .map_box {
    width: 100%;
    height: 450px;
    border-radius: 0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .intro-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .news-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

    .news-card.featured .news-image {
        height: 220px;
    }

    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

    section {
        padding: 50px 0;
    }

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

    .tab-buttons {
        flex-wrap: wrap;
    }

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

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

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