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

/* 全局变量 */
:root {
    --primary-color: #2c3e50; /* 深蓝色 */
    --secondary-color: #27ae60; /* 墨绿色 */
    --accent-color: #f39c12; /* 金色 */
    --text-color: #333333;
    --text-light: #777777;
    --background-color: #ffffff;
    --background-light: #f9f9f9;
    --border-color: #e0e0e0;
    --transition: all 0.3s ease;
}

/* 基础样式 */
body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

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

.section {
    padding: 100px 0;
}

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

.section-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.section-divider {
    width: 80px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 0 auto;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.brand-name {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.navbar-nav ul {
    display: flex;
    list-style: none;
}

.navbar-nav li {
    margin-left: 30px;
}

.navbar-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.navbar-nav a:hover {
    color: var(--accent-color);
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

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

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
}

/* Hero区域样式 */
.hero {
    position: relative;
    height: 100vh;
    background-image: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=Chinese%20landscape%20mountain%20and%20water%20scenery%2C%20zen%20style%2C%20soft%20light%2C%20peaceful%2C%20traditional%20ink%20painting%20style&image_size=landscape_16_9');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-content h1 {
    font-family: 'Noto Serif SC', serif;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-in-out;
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-in-out 0.2s both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    animation: fadeInUp 1s ease-in-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #e67e22;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

/* 公司简介样式 */
.about {
    background-color: var(--background-light);
}

.about-content {
    text-align: center;
}

.about-content p {
    font-size: 18px;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-light);
}

.about-features {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.feature-item {
    flex: 1;
    min-width: 250px;
    padding: 30px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 48px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

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

.feature-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* 核心业务样式 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(39, 174, 96, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--secondary-color);
}

.service-icon i {
    font-size: 32px;
    color: var(--secondary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon i {
    color: white;
}

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

.service-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* 文化理念样式 */
.culture {
    background-color: var(--background-light);
}

.culture-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    align-items: center;
}

.culture-timeline {
    flex: 1;
    min-width: 300px;
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: -40px;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item:last-child::before {
    bottom: 0;
}

.timeline-icon {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background-color: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.timeline-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 5px;
}

.timeline-desc {
    font-weight: 500;
    color: var(--accent-color) !important;
}

.culture-description {
    flex: 1;
    min-width: 300px;
}

.culture-description p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
}

/* 运营平台样式 */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.platform-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.platform-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
    transition: var(--transition);
}

.platform-item:hover i {
    color: var(--accent-color);
}

.platform-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
}

/* 联系我们样式 */
.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.info-item i {
    width: 50px;
    height: 50px;
    background-color: rgba(39, 174, 96, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-size: 20px;
    margin-right: 20px;
}

.info-item p {
    font-size: 16px;
    color: var(--text-color);
}

.info-item a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.info-item a:hover {
    color: var(--accent-color);
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 20px;
    margin-bottom: 30px;
    color: var(--primary-color);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(39, 174, 96, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚样式 */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    flex: 1;
    min-width: 250px;
}

.footer-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
    margin-bottom: 20px;
}

.footer-brand .logo {
    width: 50px;
    height: 50px;
}

.footer-brand .brand-name {
    font-size: 28px;
    color: white;
}

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

.footer-links {
    flex: 1;
    min-width: 200px;
}

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

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

.footer-links li {
    margin-bottom: 10px;
}

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

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

.footer-social {
    flex: 1;
    min-width: 200px;
}

.footer-social h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: white;
}

.footer-social ul {
    display: flex;
    gap: 15px;
    list-style: none;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #e67e22;
    transform: translateY(-5px);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .navbar-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }

    .navbar-nav.active {
        transform: translateY(0);
    }

    .navbar-nav ul {
        flex-direction: column;
        align-items: center;
    }

    .navbar-nav li {
        margin: 10px 0;
    }

    .navbar-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 20px;
    }

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

    .about-features {
        flex-direction: column;
        align-items: center;
    }

    .feature-item {
        width: 100%;
        max-width: 350px;
    }

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

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

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-social ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p {
        font-size: 18px;
    }

    .service-card {
        padding: 30px;
    }

    .contact-form {
        padding: 30px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}