.navbar {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.2);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-container::-webkit-scrollbar {
    display: none;
}

.nav-logo {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.nav-logo i {
    transition: all 0.3s ease;
}

.nav-logo:hover i {
    transform: rotate(180deg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
    list-style: none;
    flex-wrap: nowrap;
    justify-content: flex-end;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    padding: 12px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: var(--gradient-1);
    transition: left 0.3s ease;
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(0, 240, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 240, 255, 0.2);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 240, 255, 0.1);
}

.nav-link.active::before {
    left: 0;
}

.nav-link i {
    font-size: 1.1rem;
}

/* 移除移动端汉堡菜单 */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    background: rgba(0, 240, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 1400px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-link {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
}

@media (max-width: 1200px) {
    .nav-menu {
        gap: 10px;
    }
    
    .nav-link {
        padding: 8px 10px;
        font-size: 0.9rem;
    }
    
    .nav-logo {
        font-size: 1.5rem;
    }
}

@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(10px);
        width: 250px;
        height: calc(100vh - 80px);
        padding: 20px;
        gap: 15px;
        transition: all 0.3s ease;
        box-shadow: 5px 0 20px rgba(0, 0, 0, 0.3);
        overflow-y: auto;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: 15px;
        font-size: 1rem;
    }
}

/* Hero section styling */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    overflow: hidden;
}

.hero-3d-element {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-3d-element.left {
    top: 20%;
    left: -10%;
    animation-delay: -3s;
}

.hero-3d-element.right {
    bottom: 20%;
    right: -10%;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.2s both;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

/* Particle animation */
.particle {
    position: fixed;
    background: rgba(0, 240, 255, 0.5);
    border-radius: 50%;
    pointer-events: none;
    animation: particleFloat 20s infinite linear;
    z-index: 1;
}

@keyframes particleFloat {
    from {
        transform: translateY(100vh) rotate(0deg);
    }
    to {
        transform: translateY(-100px) rotate(360deg);
    }
}