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

:root {
    --primary: #00f0ff;
    --secondary: #7b2cff;
    --accent: #ff00e5;
    --bg-dark: #0a0a1a;
    --bg-card: rgba(20, 20, 50, 0.6);
    --text: #e0e0ff;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}

/* 粒子背景 */
#particles {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a0a3a 50%, #0a1a2a 100%);
}

#particles::before {
    content: '';
    position: absolute;
    width: 100%; height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, var(--primary), transparent),
        radial-gradient(2px 2px at 40px 70px, var(--secondary), transparent),
        radial-gradient(1px 1px at 90px 40px, var(--accent), transparent),
        radial-gradient(2px 2px at 160px 120px, var(--primary), transparent);
    background-size: 200px 200px;
    animation: particleFloat 20s linear infinite;
    opacity: 0.6;
}

@keyframes particleFloat {
    from { transform: translateY(0); }
    to { transform: translateY(-200px); }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0; width: 100%;
    z-index: 100;
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img { height: 40px; }
.logo-text {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: var(--text);
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s;
}

.nav-menu a:hover { color: var(--primary); }
.nav-menu a:hover::after { width: 100%; }

/* Banner */
.banner {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.3) blur(2px);
    transform: scale(1.1);
}

.banner-content {
    position: relative;
    text-align: center;
    z-index: 2;
    padding: 0 20px;
}

.glow-title {
    font-size: 56px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glowPulse 3s ease-in-out infinite alternate;
}

@keyframes glowPulse {
    from { filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.5)); }
    to { filter: drop-shadow(0 0 40px rgba(123, 44, 255, 0.8)); }
}

.banner-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    color: #a0a0c0;
}

.btn-glow {
    display: inline-block;
    padding: 14px 40px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.4);
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px; height: 50px;
    border: 2px solid var(--primary);
    border-radius: 15px;
    animation: bounce 2s infinite;
}

.scroll-down::before {
    content: '';
    position: absolute;
    top: 8px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 10px;
    background: var(--primary);
    border-radius: 2px;
    animation: scrollDot 2s infinite;
}

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

@keyframes scrollDot {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 30px; }
}

/* 通用区块 */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-title {
    text-align: center;
    font-size: 38px;
    margin-bottom: 60px;
    position: relative;
    color: #fff;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px; height: 4px;
    margin: 15px auto 0;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

/* 关于我们 */
.about-text p {
    font-size: 16px;
    color: #b0b0d0;
    margin-bottom: 30px;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.highlight-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.highlight-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 15px 40px rgba(0, 240, 255, 0.2);
}

.highlight-icon {
    font-size: 40px;
    margin-bottom: 15px;
    color: var(--primary);
}

.highlight-card h3 {
    color: #fff;
    margin-bottom: 10px;
}

.highlight-card p {
    color: #9090b0;
    font-size: 14px;
}

/* 产品展示 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid rgba(123, 44, 255, 0.2);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.4s;
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary);
    box-shadow: 0 20px 50px rgba(123, 44, 255, 0.3);
}

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(transparent 60%, rgba(10, 10, 26, 0.9));
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    color: #fff;
    margin-bottom: 8px;
    font-size: 20px;
}

.product-tag {
    color: var(--primary);
    font-size: 13px;
    margin-bottom: 12px;
}

.product-desc {
    color: #9090b0;
    font-size: 14px;
    line-height: 1.6;
}

/* 底部 */
.footer {
    background: rgba(5, 5, 15, 0.9);
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-col h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 18px;
}

.footer-col p {
    color: #8080a0;
    margin-bottom: 8px;
}

.copyright {
    text-align: center;
    color: #606080;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .glow-title { font-size: 36px; }
    .nav-menu { gap: 20px; font-size: 14px; }
    .section { padding: 60px 0; }
    .section-title { font-size: 28px; }
}