/* 文景未来AI实验室网站样式 */

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

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* 玻璃拟态效果 */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 发光效果 */
.glow {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.glow-hover:hover {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    border: 2px solid #6366f1;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

/* 导航栏 */
.nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-glass {
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(20px);
}

/* 粒子背景容器 */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* 卡片悬浮效果 */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-fixed {
        background: rgba(15, 15, 26, 0.95);
        backdrop-filter: blur(20px);
    }

    #mobile-menu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    #mobile-menu:not(.hidden) {
        max-height: 400px;
    }
}

/* Smooth scroll behavior improvements */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0f0f1a;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
}

/* Focus styles for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}

/* Loading animation */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* Button pulse animation for CTA */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
    }
}

.btn-pulse {
    animation: pulse-glow 2s infinite;
}

/* Image/object fit utilities */
.object-cover {
    object-fit: cover;
}

.object-contain {
    object-fit: contain;
}

/* Grid gap utilities for different screen sizes */
@screen sm {
    .gap-sm-4 {
        gap: 1rem;
    }
}

@screen md {
    .gap-md-8 {
        gap: 2rem;
    }
}

/* Text truncate */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}