:root {
    --primary: #ff2e63;
    --primary-dark: #c91d3e;
    --secondary: #08d9d6;
    --accent: #f9ed69;
    --dark-bg: #252a34;
    --darker-bg: #1d2129;

    --secondary-dark: #0086a3;
    --card-bg: rgba(25, 40, 65, 0.7);
    --text-light: #e2e8f0;
    --text-muted: #94a3b8;
}

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

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--darker-bg), var(--dark-bg)) fixed;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 10% 20%, rgba(41, 98, 255, 0.1) 0%, transparent 20%),
            radial-gradient(circle at 90% 80%, rgba(0, 184, 212, 0.1) 0%, transparent 20%);
    z-index: -1;
}

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

/* Header Styles */
header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.8);
    border-bottom: 1px solid rgba(41, 98, 255, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 28px;
    color: var(--secondary);
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 24px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    display: flex;
    align-items: center;
    gap: 60px;
    min-height: 90vh;
}

.hero-content {
    flex: 1;
    animation: fadeInUp 1s ease-out;
}

.hero-image {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.hero-image::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(var(--primary), transparent 70%);
    filter: blur(80px);
    opacity: 0.4;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.tagline {
    font-size: 18px;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--text-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 700px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 40px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 1rem;
    text-align: center;
    border: none;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 20px rgba(41, 98, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(41, 98, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: rgba(41, 98, 255, 0.1);
    transform: translateY(-3px);
}

/* 设备模型尺寸增大 */
.device-mockup {
    position: relative;
    width: 450px;
    height: auto;
    border-radius: 30px;
    box-shadow:
            0 25px 50px -12px rgba(0, 0, 0, 0.6),
            0 0 50px rgba(0, 184, 212, 0.5);
    border: 10px solid #1e293b;
    overflow: hidden;
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.device-mockup:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

.device-screen {
    width: 100%;
    height: auto;
    display: block;
    background: linear-gradient(45deg, #1e293b, #334155);
    border: 2px solid rgba(255, 255, 255, 0.05);
}

/* Features Section */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--text-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(41, 98, 255, 0.1);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(41, 98, 255, 0.3);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 25px;
    color: var(--secondary);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-desc {
    color: var(--text-muted);
}

/* Workflow Section */
.workflow {
    background: rgba(10, 17, 33, 0.7);
    border-radius: 30px;
    padding: 60px;
    margin: 80px 0;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(41, 98, 255, 0.1);
}

.workflow::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(41, 98, 255, 0.05) 0%, transparent 70%);
    z-index: -1;
}

.steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 50px;
}

.steps::before {
    content: "";
    position: absolute;
    top: 40px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    z-index: 0;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--secondary);
    border: 3px solid var(--primary);
}

.step-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.step-desc {
    color: var(--text-muted);
    max-width: 250px;
    margin: 0 auto;
}

/* Download Section */
.download-section {
    text-align: center;
    padding: 80px 0;
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
}

.download-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--text-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.download-text {
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.badge {
    display: inline-block;
    background: rgba(25, 40, 65, 0.7);
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    border: 1px solid rgba(41, 98, 255, 0.2);
}

/* 优化下载按钮居中 */
.download-cta {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

/* Footer */
footer {
    padding: 60px 0 30px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 60px;
}

.footer-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-text {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 20px;
}

/* 新增联系邮箱样式 */
.contact-email {
    margin: 25px 0;
    font-size: 1.1rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.contact-email a {
    color: var(--secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px dashed rgba(0, 184, 212, 0.3);
    padding-bottom: 2px;
}

.contact-email a:hover {
    color: var(--text-light);
    border-bottom: 1px solid var(--secondary);
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 20px;
}

.copyright a {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 20px;
    text-decoration: none;
}


/* 配色切换按钮 */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    background: var(--card-bg);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(41, 98, 255, 0.3);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(41, 98, 255, 0.5);
}

.theme-toggle i {
    font-size: 24px;
    color: var(--secondary);
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 80px 0 40px;
    }

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

    .steps {
        flex-direction: column;
        gap: 50px;
    }

    .steps::before {
        display: none;
    }

    /* 移动设备上缩小设备模型 */
    .device-mockup {
        width: 380px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    h1 {
        font-size: 2.8rem;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .workflow {
        padding: 40px 20px;
    }

    .device-mockup {
        width: 350px;
    }

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