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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.logo-image {
    height: 40px;
    width: auto;
    max-width: 100%;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--bg-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-full {
    width: 100%;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 80px;
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-secondary {
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

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

/* 特色服务区域 */
.features {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 关于我们预览区域 */
.about-preview {
    padding: 5rem 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.about-text .btn {
    margin-top: 1rem;
}

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

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 0.75rem;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 页脚 */
.footer {
    background-color: var(--text-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-section p {
    color: #94a3b8;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1rem;
    text-align: center;
    color: #64748b;
}

.icp-list {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.icp-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.icp-item a {
    color: #64748b;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.icp-item a:hover {
    color: #667eea;
}

.icp-item img {
    vertical-align: middle;
    height: 16px;
    width: auto;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8rem 0 4rem;
    text-align: center;
    margin-top: 0;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    opacity: 0.9;
}

/* 公司简介 */
.company-intro {
    padding: 4rem 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.intro-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.image-placeholder {
    background: var(--bg-light);
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.25rem;
}

/* 企业文化 */
.company-culture {
    padding: 4rem 0;
    background: var(--bg-light);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.culture-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.culture-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.culture-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.culture-item p {
    color: var(--text-light);
}

/* 发展历程 */
.timeline {
    padding: 4rem 0;
}

.timeline-content {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-left: 2rem;
    border-left: 3px solid var(--primary-color);
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 80px;
}

.timeline-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.timeline-text p {
    color: var(--text-light);
}

/* 服务列表 */
.services-list {
    padding: 4rem 0;
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.service-item.reverse {
    direction: rtl;
}

.service-item.reverse > * {
    direction: ltr;
}

.service-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.service-content > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 服务流程 */
.service-process {
    padding: 4rem 0;
    background: var(--bg-light);
}

.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.process-step h3 {
    margin-bottom: 0.5rem;
}

.process-step p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 联系页面 */
.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2,
.contact-form h2,
.map-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1rem;
}

.info-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 0.5rem;
}

.info-content h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.info-content p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.25rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select: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;
}

/* 地图区域 */
.map-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.map-placeholder {
    background: white;
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.map-image {
    width: 100%;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.service-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.company-philosophy {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.philosophy-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-content h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.philosophy-text {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* 文档滚动播放 */
.document-slider {
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: height 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slider-container {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.slider-item {
    flex: 0 0 100%;
    min-width: 100%;
    padding: 1.5rem;
    box-sizing: border-box;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    height: auto;
}

.slider-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.slider-image {
    margin-bottom: 1.5rem;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.slider-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.slider-image:hover img {
    transform: scale(1.02);
}

/* 图片画廊样式 */
.slider-gallery {
    margin-top: 1.5rem;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.gallery-container {
    display: flex;
    transition: transform 0.5s ease;
}

.gallery-slide {
    flex: 0 0 100%;
    position: relative;
}

.gallery-slide img {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 2rem 1rem 1rem;
    font-size: 0.95rem;
    text-align: center;
}

.gallery-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.05);
}

.gallery-prev,
.gallery-next {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.gallery-prev:hover,
.gallery-next:hover {
    background: var(--secondary-color);
}

.gallery-indicators {
    display: flex;
    gap: 0.5rem;
}

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

.gallery-dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.slider-item h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.slider-item p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.slider-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, #a7b5f3 0%, #f0eff1 100%);
    color: #7a3434;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.slider-description {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.slider-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.slider-features span {
    color: var(--text-light);
    font-size: 0.95rem;
}

.slider-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.highlight-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--bg-light);
    color: var(--primary-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.highlight-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.slider-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.slider-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.slider-indicator.active {
    background: var(--primary-color);
    width: 24px;
    border-radius: 4px;
}

.slider-item.loading {
    text-align: center;
    color: var(--text-light);
    padding: 3rem;
}

.slider-controls {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    pointer-events: none;
}

.slider-control {
    flex: 1;
    background: transparent;
    border: none;
    cursor: pointer;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: transparent;
}

.slider-control:first-child {
    justify-content: flex-start;
    padding-left: 1rem;
}

.slider-control:last-child {
    justify-content: flex-end;
    padding-right: 1rem;
}

.slider-control:hover {
    background: transparent;
    color: transparent;
}