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

:root {
    --primary-color: #0066cc;
    --primary-dark: #004499;
    --primary-light: #3388dd;
    --secondary-color: #00ccff;
    --accent-color: #ff6600;
    --text-primary: #ffffff;
    --text-secondary: #b8d4f0;
    --text-dark: #333333;
    --bg-primary: #001122;
    --bg-secondary: #002244;
    --bg-card: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 30px rgba(0, 102, 204, 0.3);
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #00ccff 100%);
    --gradient-secondary: linear-gradient(135deg, #002244 0%, #004499 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 17, 34, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

.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;
    gap: 12px;
}

.logo-img {
    height: 40px;
    width: auto;
    border-radius: 8px;
}

.logo-text h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: block;
    margin-top: -5px;
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--secondary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-secondary);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.tech-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 102, 204, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 204, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 60%;
    right: 20%;
    animation-delay: 3s;
}

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

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 102, 204, 0.4);
}

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

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1a1a1a, #2d2d2d);
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    animation: phoneFloat 3s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qr-preview {
    width: 80%;
    height: auto;
    border-radius: 10px;
}

/* 统计数据区域 */
.stats-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    position: relative;
}

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

.stat-item {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* 功能特色区域 */
.features-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--text-primary);
    stroke-width: 2;
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* 二维码区域 */
.qrcode-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

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

.qrcode-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qrcode-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.qrcode-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.qr-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.checkmark {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-weight: bold;
}

.qrcode-image {
    text-align: center;
}

.qrcode-image img {
    max-width: 300px;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.qr-caption {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* 预览效果轮播图 */
.preview-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.preview-carousel {
    max-width: 1200px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
    height: 400px;
    display: flex;
    align-items: center;
}

.carousel-track {
    display: flex;
    align-items: center;
    gap: 30px;
    transition: transform 0.8s ease;
    will-change: transform;
}

.carousel-slide {
    flex-shrink: 0;
    width: 300px;
    height: 300px;
    cursor: pointer;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.5s ease;
    position: relative;
}

.carousel-slide:not(.active) {
    transform: scale(0.85);
    opacity: 0.7;
    filter: blur(1px);
}

.carousel-slide.active {
    transform: scale(1);
    opacity: 1;
    filter: blur(0);
    box-shadow: var(--shadow);
    z-index: 2;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.carousel-slide:hover img {
    transform: scale(1.05);
}

.carousel-slide.clone {
    pointer-events: none;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.indicator:hover {
    background: rgba(0, 204, 255, 0.6);
    transform: scale(1.1);
}

.indicator.active {
    background: var(--secondary-color);
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(0, 204, 255, 0.5);
}

.indicator.active::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 2px solid var(--secondary-color);
    border-radius: 50%;
    opacity: 0.3;
}

/* 友情链接 */
.friends-links {
    padding: 80px 0;
    background: var(--bg-primary);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.link-item {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.link-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.link-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.link-url {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 联系我们区域 */
.contact-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.contact-item {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.contact-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.contact-item p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-qr {
    text-align: center;
    justify-content: center;
    align-items: center;
}

.contact-qr img {
    max-width: 120px;
    width: 100%;
    height: auto;
    border-radius: 15px;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.qr-caption {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p,
.footer-section li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.beian-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.beian-link:hover {
    color: var(--secondary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 17, 34, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        backdrop-filter: blur(10px);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .qrcode-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .carousel-container {
        height: 280px;
    }
    
    .carousel-track {
        gap: 20px;
    }
    
    .carousel-slide {
        width: 200px;
        height: 200px;
    }
    
    .carousel-slide:not(.active) {
        transform: scale(0.9);
    }
    
    .links-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .carousel-container {
        height: 220px;
    }
    
    .carousel-slide {
        width: 150px;
        height: 150px;
    }
    
    .carousel-slide:not(.active) {
        transform: scale(0.95);
    }
    
    .carousel-indicators {
        gap: 10px;
        margin-top: 20px;
    }
    
    .indicator {
        width: 12px;
        height: 12px;
    }
}

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

.animate-on-scroll {
    animation: fadeInUp 0.6s ease-out;
}

/* 加载动画 */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}