/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-white);
}

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}
.logo img {
    width: 15%;
    margin: 5px 2px 0 0;
}
.logo-icon {
    font-size: 2rem;
    margin-right: 0.5rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-list a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: white;
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: white;
}

.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: 0.5rem 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    list-style: none;
    margin-top: 10px;
}

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

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.3s;
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-hero-primary {
    background: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-hero-primary:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

.btn-hero-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 英雄区域 */
.hero {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    animation: fadeInUp 1s;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 1s 0.4s both;
}

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

/* 业务区域 */
.business-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.business-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    text-align: center;
}

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

.business-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.business-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.business-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.business-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.business-link:hover {
    color: var(--primary-dark);
}

/* 特色区域 */
.features-section {
    padding: 5rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.feature-item {
    text-align: center;
}

.feature-number {
    font-size: 4rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 新闻区域 */
.news-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

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

.news-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.news-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

/* 公告区域 */
.announcements-section {
    padding: 5rem 0;
    background: white;
}

.announcements-list {
    max-width: 900px;
    margin: 0 auto;
}

.announcement-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s;
}

.announcement-item:hover {
    background: var(--bg-light);
}

.announcement-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    min-width: 100px;
    margin-right: 2rem;
}

.announcement-title {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    flex: 1;
    transition: color 0.3s;
}

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

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 4rem 0 2rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
}

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

/* 页面内容 */
.page-content {
    padding: 3rem 0;
    min-height: 500px;
}

.content-wrapper {
    max-width: 100%;
    margin: 0 auto;
    line-height: 1.8;
}

.content-wrapper h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.content-wrapper ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.content-wrapper li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* 关于我们页面 */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-intro {
    margin-bottom: 4rem;
}

.about-intro h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-intro p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
    padding: 3rem;
    background: var(--bg-light);
    border-radius: 16px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.about-values {
    margin-top: 4rem;
}

.about-values h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.value-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.value-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.value-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 企业文化页面 */
.culture-content {
    max-width: 1000px;
    margin: 0 auto;
}

.culture-section {
    margin-bottom: 4rem;
}

.culture-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.culture-section > p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.spirit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.spirit-item {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(16, 185, 129, 0.05));
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.spirit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.spirit-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 奖项页面 */
.awards-content {
    max-width: 900px;
    margin: 0 auto;
}

.awards-timeline {
    position: relative;
    padding-left: 3rem;
}

.awards-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.award-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.award-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0.5rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.award-year {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.award-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.award-content p {
    color: var(--text-secondary);
}

/* 招聘页面 */
.careers-content {
    max-width: 1000px;
    margin: 0 auto;
}

.careers-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.careers-intro h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.careers-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.careers-benefits {
    margin-bottom: 4rem;
}

.careers-benefits h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.benefit-item {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.benefit-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.benefit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.careers-positions {
    margin-bottom: 4rem;
}

.careers-positions h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.positions-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.position-item {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s;
}

.position-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.position-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.position-item p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.position-location {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.careers-contact {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.careers-contact p {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.careers-contact a {
    color: var(--primary-color);
    text-decoration: none;
}

.careers-contact a:hover {
    text-decoration: underline;
}

/* 新闻列表页面 */
.news-list {
    max-width: 900px;
    margin: 0 auto;
}

.news-item {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    transition: all 0.3s;
}

.news-item:hover {
    box-shadow: var(--shadow-md);
}

.news-item .news-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.news-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 公告列表页面 */
.announcements-list-page {
    max-width: 900px;
    margin: 0 auto;
}

.announcement-item-page {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    display: flex;
    gap: 2rem;
    transition: all 0.3s;
}

.announcement-item-page:hover {
    box-shadow: var(--shadow-md);
}

.announcement-item-page .announcement-date {
    min-width: 100px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.announcement-content h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.announcement-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 服务页面 */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.step {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step p {
    color: var(--text-secondary);
}

.software-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.software-item {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.software-item h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.software-item p {
    color: var(--text-secondary);
}

/* 联系我们页面 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.contact-item {
    margin-bottom: 2.5rem;
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.contact-item p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.contact-form-wrapper {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 12px;
}

.contact-form-wrapper h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

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

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

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

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

@media (max-width: 480px) {
    .hero {
        height: 500px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .page-title {
        font-size: 2rem;
    }

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