:root {
    --primary: rgba(200, 200, 200, 0.8);
    --primary-dark: rgba(150, 150, 150, 0.8);
    --primary-light: rgba(220, 220, 220, 0.6);
    --secondary: rgba(100, 100, 100, 0.8);
    --light: #ffffff;
    --dark: #333333;
    --gray: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans SC', sans-serif;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: url('http://img.netbian.com/file/2025/0407/083211ufsXJ.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

a {
    text-decoration: none;
    color: inherit;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.5s ease;
    
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
    padding: 15px 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.navbar.scrolled .nav-link {
    color: var(--dark);
}

.navbar.scrolled .nav-link:hover {
    color: var(--primary-dark);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--light);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.navbar.scrolled .logo {
    color: var(--dark);
    text-shadow: 0 1px 5px rgba(150, 150, 150, 0.3);
}

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

.nav-link {
    color: var(--light);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

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

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

.navbar.scrolled .nav-link:after {
    background-color: var(--primary-dark);
}

.nav-link:hover {
    color: rgba(255, 255, 255, 0.9);
}

.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--light);
    position: relative;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-light);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 40px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: rgba(150, 150, 150, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    background: rgba(180, 180, 180, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(255, 255, 255, 0.2);
}

.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--light);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

.section {
    padding: 100px 0;
    position: relative;
}

/* 绉婚櫎浜嗚竟妗嗗拰鑳屾櫙锛屼繚鐣欎簡闂磋窛鍜屽畾浣� */
.glass-section {
    margin: 80px 0;
    padding: 50px 0;
}

#docs.glass-section {
    margin-bottom: 120px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--light);
    position: relative;
    display: inline-block;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: rgba(200, 200, 200, 0.8);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.section-description {
    font-size: 1.2rem;
    color: var(--light);
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid var(--border-light);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.feature-img {
    height: 200px;
    width: 100%;
    object-fit: cover;
}

.feature-content {
    padding: 30px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--light);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.feature-desc {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.stats-container {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid var(--border-light);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: rgba(220, 220, 220, 1);
    text-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

.stat-label {
    font-size: 1.2rem;
    color: var(--light);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    padding: 50px;
}

.about-text {
    flex: 1;
}

.about-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--light);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.about-desc {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-img {
    flex: 1;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
}

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

footer {
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    background: rgba(0, 0, 0, 0.6);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-column h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 25px;
    font-weight: 600;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
    background: rgba(180, 180, 180, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-color: rgba(200, 200, 200, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }
    
    .navbar.scrolled {
        padding: 10px 20px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .about-content {
        flex-direction: column;
        padding: 30px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .glass-section {
        margin: 60px 0;
        padding: 40px 0;
    }
    
    #docs.glass-section {
        margin-bottom: 80px;
    }
}