/* 车帮主官网样式文件 - 蓝色科技风设计 */

/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式设置 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #1F2937;
    background-color: #FFFFFF;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(30, 58, 138, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #FFFFFF;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 28px;
    color: #3B82F6;
}

.logo-img {
    height: 40px;
    width: 40px;
    margin-right: 10px;
    object-fit: cover;
    border-radius: 50%;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3B82F6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3B82F6;
    transition: width 0.3s ease;
}

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

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #FFFFFF;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首屏Banner区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 50%, #0EA5E9 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    z-index: 2;
    position: relative;
}

.hero-content {
    color: #FFFFFF;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(45deg, #FFFFFF, #DBEAFE);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #DBEAFE;
    font-weight: 300;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: #E5E7EB;
    line-height: 1.8;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn i {
    margin-right: 8px;
}

.btn-primary {
    background: #FFFFFF;
    color: #1E3A8A;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background: #F3F4F6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

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

.btn-secondary:hover {
    background: #FFFFFF;
    color: #1E3A8A;
    transform: translateY(-2px);
}

/* 手机模型样式 */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1F2937, #374151);
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-mockup i {
    font-size: 120px;
    color: #3B82F6;
    opacity: 0.8;
}

/* 背景动画效果 */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 30%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* 产品介绍区域 */
.intro {
    padding: 100px 0;
    background: #F8FAFC;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: bold;
    color: #1E3A8A;
    margin-bottom: 20px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #6B7280;
    margin-bottom: 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: #FFFFFF;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(30, 58, 138, 0.1);
    transition: transform 0.3s ease;
}

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

.stat-number, .txz-stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #1E3A8A;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    color: #6B7280;
    font-weight: 500;
}

/* 功能展示区域 */
.features {
    padding: 100px 0;
    background: #FFFFFF;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: #FFFFFF;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(30, 58, 138, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #E5E7EB;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3B82F6, #0EA5E9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.feature-icon i {
    font-size: 2rem;
    color: #FFFFFF;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1E3A8A;
    margin-bottom: 15px;
}

.feature-description {
    font-size: 1rem;
    color: #6B7280;
    margin-bottom: 25px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    text-align: left;
}

.feature-list li {
    padding: 8px 0;
    color: #4B5563;
    position: relative;
    padding-left: 25px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10B981;
    font-weight: bold;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 100%);
    color: #FFFFFF;
}

.download .section-title,
.download .section-subtitle {
    color: #FFFFFF;
}

.download-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
    margin-top: 60px;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.download-btn {
    display: flex;
    align-items: center;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    text-decoration: none;
    color: #FFFFFF;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.download-btn i {
    font-size: 2rem;
    margin-right: 20px;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.btn-platform {
    font-size: 1.2rem;
    font-weight: bold;
}

.qr-code {
    text-align: center;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.qr-placeholder i {
    font-size: 3rem;
    margin-bottom: 10px;
    opacity: 0.8;
}

.qr-placeholder p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 联系我们区域 */
.contact {
    padding: 100px 0;
    background: #F8FAFC;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: #FFFFFF;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(30, 58, 138, 0.1);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3B82F6, #0EA5E9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 1.2rem;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: #1E3A8A;
    margin-bottom: 5px;
}

.contact-item p {
    color: #6B7280;
}

/* 联系表单样式 */
.contact-form {
    background: #FFFFFF;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(30, 58, 138, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #E5E7EB;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #F9FAFB;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3B82F6;
    background: #FFFFFF;
}

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

/* 页脚样式 */
.footer {
    background: #1F2937;
    color: #FFFFFF;
    padding: 60px 0 30px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.footer-logo i {
    margin-right: 10px;
    color: #3B82F6;
}

.footer-logo .logo-img {
    height: 30px;
    width: 30px;
    margin-right: 10px;
    object-fit: cover;
    border-radius: 50%;
}

.footer-slogan {
    font-size: 1.2rem;
    color: #9CA3AF;
    margin-bottom: 30px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-links a {
    color: #D1D5DB;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3B82F6;
}

.footer-copyright {
    color: #9CA3AF;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(30, 58, 138, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

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

    .hero-buttons {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .footer-links {
        flex-direction: column;
        gap: 15px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

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

    .contact-form {
        padding: 20px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
    background: #3B82F6;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1E3A8A;
}