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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* 橙色主题色 */
:root {
    --primary: #ff6b35; /* 主橙色 */
    --primary-dark: #e55a2b;
    --primary-light: #ff8c5d;
    --secondary: #ffa726;
    --text-dark: #333;
    --text-light: #666;
    --text-muted: #999;
    --bg-light: #f8f9fa;
    --bg-gray: #f5f5f5;
    --border: #eaeaea;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius: 8px;
    --radius-lg: 12px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-size: 14px;
    line-height: 1;
}

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

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

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

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

.btn-login {
    color: var(--text-dark);
    background: transparent;
    border: 1px solid var(--border);
}

.btn-login:hover {
    background: var(--bg-light);
}

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

.btn-trial:hover {
    background: var(--primary-dark);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-download {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 14px 32px;
    font-size: 18px;
    font-weight: 600;
}

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

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.win-btn {
    background: #0078d7;
    border-color: #0078d7;
}

.win-btn:hover {
    background: #005a9e;
    border-color: #005a9e;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 16px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

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

.nav-menu {
    display: flex;
    gap: 32px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
    white-space: nowrap;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.nav-actions {
    display: flex;
    gap: 16px;
    align-items: center;
    white-space: nowrap;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px;
}

/* 英雄区域 */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #fff8f5 0%, #fff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-title {
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-dark);
    font-weight: 700;
}

.hero-tags {
    margin-bottom: 32px;
}

.tag {
    display: inline-block;
    background: rgba(255, 107, 53, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 500;
    margin-right: 12px;
    margin-bottom: 12px;
}

.hero-features {
    margin-bottom: 32px;
}

.feature-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 400px;
}

.feature-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 4px;
    color: var(--text-dark);
}

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

.hero-description {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.dashboard-preview {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.dashboard-preview img {
    width: 100%;
    height: auto;
    display: block;
}

/* 解决方案 */
.solutions {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
    color: var(--text-dark);
    font-weight: 700;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.solution-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 32px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    text-align: center;
}

.solution-card:hover {
    transform: translateY(-8px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 32px;
    overflow: hidden;
}

.solution-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--text-dark);
}

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

/* 数据统计 */
.stats {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1;
}

.stat-desc {
    font-size: 18px;
    opacity: 0.9;
}

.stats-note {
    text-align: center;
    margin-top: 40px;
    opacity: 0.8;
    font-size: 14px;
}

/* 客户案例 */
.customers {
    padding: 80px 0;
    background: white;
}

.customer-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 48px;
}

.category-tag {
    padding: 8px 20px;
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.category-tag:hover,
.category-tag.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.customer-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.customer-case {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.case-image {
    width: 100%;
    height: 200px;
    /*margin: -32px -32px 24px -32px;*/
    margin-bottom: 24px;
    overflow: hidden;
    border-radius: var(--radius) var(--radius) 0 0;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.customer-case:hover .case-image img {
    transform: scale(1.05);
}

.customer-case:hover {
    transform: translateY(-4px);
}

.case-header {
    margin-bottom: 24px;
}

.case-header h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.case-tag {
    display: inline-block;
    background: rgba(255, 107, 53, 0.1);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
}

.case-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.case-stat {
    text-align: center;
    padding: 16px;
    background: white;
    border-radius: var(--radius);
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-light);
}

/* 服务支持 */
.services {
    padding: 80px 0;
    background: var(--bg-gray);
}

.services-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 12px 32px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius);
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
}

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

.tab-content {
    display: none;
    max-width: 800px;
    margin: 0 auto;
}

.tab-content.active {
    display: block;
}

.service-content {
    background: white;
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.service-image {
    width: 100%;
    height: 250px;
    /*margin: -40px -40px 24px -40px;*/
    overflow: hidden;
    border-radius: var(--radius) var(--radius) 0 0;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-content:hover .service-image img {
    transform: scale(1.05);
}

.service-content h3 {
    font-size: 28px;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.service-content p {
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.service-feature i {
    color: var(--primary);
    font-size: 20px;
    margin-top: 2px;
}

.service-feature h4 {
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.service-feature p {
    margin: 0;
    font-size: 14px;
    color: var(--text-light);
}

/* 资讯中心 */
.news {
    padding: 60px 0;
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.news-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.news-image {
    width: 100%;
    height: 200px;
    margin: -32px -32px 24px -32px;
    overflow: hidden;
    border-radius: var(--radius) var(--radius) 0 0;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

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

.news-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.news-card p {
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.6;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.3s ease;
}

.news-link:hover {
    gap: 12px;
}

/* 联系表单 */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    color: white;
}

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

.contact-title {
    font-size: 36px;
    margin-bottom: 16px;
    line-height: 1.3;
    font-weight: 700;
}

.contact-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.phone-input {
    display: flex;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.phone-prefix {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.phone-input input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 16px;
    color: white;
    font-size: 16px;
}

.phone-input input:focus {
    outline: none;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-family: inherit;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

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

.form-note {
    text-align: center;
    margin-top: 16px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* 下载中心 */
.download {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    text-align: center;
}

.download-title {
    font-size: 32px;
    margin-bottom: 32px;
    font-weight: 700;
}

/* 页脚 */
.footer {
    background: #111;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 80px;
    margin-bottom: 40px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: white;
    font-weight: 600;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-column a:hover {
    color: var(--primary);
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-info i {
    color: var(--primary);
    width: 16px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.legal-links {
    display: flex;
    gap: 24px;
}

.legal-links a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.legal-links a:hover {
    color: var(--primary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        gap: 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .services-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .solution-card,
    .service-content,
    .news-card {
        padding: 24px;
    }
    
    .customer-cases {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

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

.hero-content,
.hero-image,
.solution-card,
.customer-case,
.service-content,
.news-card,
.contact-form {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-light), var(--primary));
    transform-origin: 0%;
    z-index: 1001;
    display: none;
}

/* 表单验证样式 */
.form-group input:invalid,
.form-group select:invalid,
.form-group textarea:invalid {
    border-color: #ff4444;
}

.form-group input:valid,
.form-group select:valid,
.form-group textarea:valid {
    border-color: #4CAF50;
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}