/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fira Code', 'Cascadia Code', 'Source Code Pro', monospace;
}

body {
    background-color: #000;
    color: #fff;
    overflow-x: hidden;
    line-height: 1.6;
}

/* 动态背景网格 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(to right, #111 1px, transparent 1px),
        linear-gradient(to bottom, #111 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    mask-image: radial-gradient(circle at 50% 50%, black, transparent 80%);
}

/* 导航栏 */
nav {
    display: flex;
    justify-content: space-between;
    padding: 2rem 10%;
    align-items: center;
    border-bottom: 1px solid #222;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.logo span {
    color: #000;
    background: #fff;
    padding: 0 5px;
    margin-right: 5px;
}

.nav-links a {
    color: #888;
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #fff;
    text-shadow: 0 0 8px rgba(255,255,255,0.5);
}

/* Hero 主视觉区 */
header {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 15%;
}

.pre-title {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 2rem;
}

.glitch {
    position: relative;
    display: inline-block;
}

.highlight {
    background: #fff;
    color: #000;
    padding: 0 15px;
}

/* 项目卡片区 */
.section {
    padding: 5rem 15%;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    border: 1px solid #222;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: rgba(10, 10, 10, 0.8);
    cursor: pointer;
}

.card:hover {
    border-color: #fff;
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(255,255,255,0.05);
}

.card-num {
    font-size: 0.8rem;
    color: #444;
    margin-bottom: 1rem;
    display: block;
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card p {
    color: #888;
    font-size: 0.9rem;
}

/* 极客感按钮 */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid #fff;
    color: #fff;
    text-decoration: none;
    margin-top: 2rem;
    font-size: 0.8rem;
    font-weight: bold;
    position: relative;
    overflow: hidden;
    transition: 0.3s;
}

.btn:hover {
    background: #fff;
    color: #000;
}

/* 光标闪烁效果 */
.cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background: #fff;
    margin-left: 5px;
    animation: blink 1s infinite;
    vertical-align: middle;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* 响应式调整 */
@media (max-width: 768px) {
    nav { padding: 1.5rem 5%; }
    header { padding: 0 5%; }
    .section { padding: 4rem 5%; }
}