/* --- 全局变量与重置 --- */
:root {
    --bg-color: #0a0a14;
    --card-bg: rgba(22, 22, 40, 0.8);
    --primary-color: #00f3ff; /* 霓虹青 */
    --secondary-color: #9d4edd; /* 赛博紫 */
    --text-color: #e0e0ff;
    --text-muted: #8888aa;
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* --- 导航栏 --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 15px 0;
    z-index: 1000;
    background: rgba(10, 10, 20, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 243, 255, 0.1);
}

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

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

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

/* 移动端菜单 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}
.menu-toggle span {
    height: 2px;
    width: 25px;
    background: #fff;
    margin: 4px 0;
    transition: 0.3s;
}

/* --- Hero 区域 --- */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#gridCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-content h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    margin-bottom: 20px;
    color: #fff;
    text-shadow: 0 0 10px var(--primary-color);
}

/* Glitch 特效 */
.glitch {
    position: relative;
}
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--secondary-color);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}
.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--primary-color);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim2 5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(42px, 9999px, 44px, 0); }
    100% { clip: rect(12px, 9999px, 94px, 0); }
}
@keyframes glitch-anim2 {
    0% { clip: rect(22px, 9999px, 64px, 0); }
    100% { clip: rect(82px, 9999px, 34px, 0); }
}


.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px;
    color: var(--text-muted);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 4px;
    margin: 0 10px;
    transition: all 0.3s;
    font-weight: bold;
}

.btn:hover {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--primary-color);
}

.btn-outline {
    border-color: var(--text-muted);
    color: var(--text-muted);
}
.btn-outline:hover {
    border-color: var(--secondary-color);
    background: var(--secondary-color);
    color: #fff;
    box-shadow: 0 0 20px var(--secondary-color);
}

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

.section-title {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.section-dark {
    background: rgba(255,255,255,0.02);
}

/* --- 卡片 --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 10px;
    border: 1px solid rgba(0, 243, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 243, 255, 0.1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.card h3 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 15px;
    color: #fff;
}

/* --- 关于我们 --- */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.section-title-left {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.stats {
    list-style: none;
    margin-top: 30px;
    display: flex;
    gap: 30px;
}

.stats strong {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.about-img svg {
    width: 100%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* --- 联系我们 --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    color: #fff;
    font-family: inherit;
}

.contact-form button {
    width: 100%;
}

.contact-info p {
    margin-bottom: 15px;
    color: var(--text-muted);
}

/* --- 页脚 --- */
.footer {
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- 响应式设计 --- */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* 简易处理，实际部署建议完善JS菜单 */
    }
    .menu-toggle {
        display: flex;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .about-container, .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .stats {
        flex-direction: column;
        gap: 15px;
    }
}