* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* 导航栏 */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 4px 12px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
    transition: all 0.3s ease;
    display: inline-block;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0.25rem;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, #60a5fa, #3b82f6);
    border-radius: 2px;
    transition: transform 0.3s ease;
}

.nav-links a:hover {
    color: #60a5fa;
    background: rgba(96, 165, 250, 0.08);
}

.nav-links a:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    color: white;
    padding: 150px 2rem 100px;
    text-align: center;
    margin-top: 70px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1.2s;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: white;
    color: #60a5fa;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1.4s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* 内容区域 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #60a5fa;
}

/* 产品介绍 */
.intro {
    background: #f8f9fa;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.intro-text h3 {
    font-size: 1.8rem;
    color: #60a5fa;
    margin-bottom: 1rem;
}

.intro-screenshots {
    position: relative;
    display: flex;
    justify-content: center;
}

.screenshot-carousel {
    position: relative;
    border-radius: 12px;
    overflow: visible;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-width: 350px;
    width: 100%;
    padding: 0 20px;
    background: transparent;
}

.screenshot-slides {
    position: relative;
    width: 100%;
}

.screenshot-slide {
    display: none;
    width: 100%;
    padding: 0;
}

.screenshot-slide.active {
    display: block;
}

.screenshot-image {
    width: calc(100% - 40px);
    max-width: 280px;
    height: auto;
    aspect-ratio: 9 / 16;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    color: #333;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.carousel-btn:hover {
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.carousel-prev {
    left: 10px;
}

.carousel-next {
    right: 10px;
}

.carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator.active {
    background: white;
    width: 24px;
    border-radius: 4px;
}

/* 统计数据 */
.stats {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    color: white;
    text-align: center;
}

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

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 功能特点 */
.features {
    background: white;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

.feature-card h3 {
    font-size: 1.5rem;
    color: #60a5fa;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* 优势展示 */
.advantages {
    background: #f8f9fa;
}

.advantages-list {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.advantage-icon {
    font-size: 2rem;
    margin-right: 1.5rem;
    color: #60a5fa;
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 1.3rem;
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.advantage-content p {
    color: #666;
    line-height: 1.8;
}

/* 硬件设备 */
.hardware {
    background: white;
}

.hardware-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hardware-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e5e7eb;
    text-align: center;
}

.hardware-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(96, 165, 250, 0.2);
    border-color: #60a5fa;
}

.hardware-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: block;
}

.hardware-card h3 {
    font-size: 1.5rem;
    color: #60a5fa;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hardware-card p {
    color: #666;
    line-height: 1.8;
    font-size: 1rem;
}

.hardware-image {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    border-radius: 10px;
    background: #f8f9fa;
    padding: 1rem;
}

/* 合作案例 */
.cases {
    background: white;
}

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

.case-card {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e5e7eb;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.15);
    border-color: #60a5fa;
}

.case-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.case-content {
    padding: 1.5rem;
}

.case-location {
    font-size: 1.2rem;
    font-weight: bold;
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.case-name {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 1rem;
}

.case-info {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.case-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-block;
    transition: all 0.2s ease;
}

/* 类型标签 - 现代蓝色 */
.case-tag-type {
    background: #f0f7ff;
    color: #2563eb;
}

/* 功能标签 - 现代绿色 */
.case-tag-feature {
    background: #f0fdf4;
    color: #16a34a;
}

/* 橙色标签 - 现代橙色 */
.case-tag-orange {
    background: #fff7ed;
    color: #ea580c;
}

/* 紫色标签 - 现代紫色 */
.case-tag-purple {
    background: #faf5ff;
    color: #9333ea;
}

/* 红色标签 - 现代红色 */
.case-tag-red {
    background: #fef2f2;
    color: #dc2626;
}

/* 黄色标签 - 现代黄色 */
.case-tag-yellow {
    background: #fefce8;
    color: #ca8a04;
}

/* 青色标签 - 现代青色 */
.case-tag-cyan {
    background: #ecfeff;
    color: #0891b2;
}

/* 页脚 */
footer {
    background: #3b82f6;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-copyright {
    opacity: 0.7;
    margin-top: 2rem;
}

/* 扫码体验区域 */
.qr-codes-section {
    background: #f8f9fa;
    padding: 80px 0;
}

.qr-codes-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: #60a5fa;
}

.qr-codes-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.qr-code-image {
    width: 150px;
    height: 150px;
    background: white;
    border-radius: 10px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.qr-code-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-code-label {
    color: #333;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 联系方式区域 */
.contact-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 3rem;
    flex-wrap: wrap;
}

.contact-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    min-width: 280px;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.2);
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.contact-phone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.contact-phone-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.contact-phone a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.8rem;
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    transition: all 0.3s;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.contact-phone a:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.5);
}

.customer-service-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.customer-service-qr .qr-code-image {
    width: 180px;
    height: 180px;
    background: white;
    border-radius: 15px;
    padding: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s;
}

.customer-service-qr .qr-code-image:hover {
    transform: scale(1.05);
}

.customer-service-qr .qr-code-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

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

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

    .stat-number {
        font-size: 2rem;
    }

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

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

    .advantages-list {
        grid-template-columns: 1fr;
    }

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

    .advantage-item {
        flex-direction: column;
        text-align: center;
    }

    .advantage-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }

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

    .qr-code-image {
        width: 120px;
        height: 120px;
    }

    .contact-info {
        flex-direction: column;
        gap: 2rem;
    }

    .contact-card {
        min-width: auto;
        width: 100%;
        max-width: 350px;
        padding: 2rem;
    }

    .contact-phone a {
        font-size: 1.5rem;
    }

    .customer-service-qr .qr-code-image {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 1rem 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .container {
        padding: 0 1rem;
    }

    section {
        padding: 50px 0;
    }

    .qr-codes-grid {
        grid-template-columns: 1fr;
    }

    .qr-code-image {
        width: 100px;
        height: 100px;
    }

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

    .contact-card {
        padding: 1.5rem;
    }

    .contact-phone-icon {
        font-size: 2.5rem;
    }

    .contact-phone a {
        font-size: 1.3rem;
        padding: 0.6rem 1.2rem;
    }

    .customer-service-qr .qr-code-image {
        width: 130px;
        height: 130px;
    }
}