/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00f0ff;
    --secondary-color: #ff00ff;
    --accent-color: #00ff88;
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --gradient-main: linear-gradient(135deg, #00f0ff 0%, #ff00ff 50%, #00ff88 100%);
    --glow-primary: 0 0 20px rgba(0, 240, 255, 0.5);
    --glow-secondary: 0 0 20px rgba(255, 0, 255, 0.5);
}

html {
    scroll-behavior: smooth;
}

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

/* 背景网格效果 */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* 粒子效果 */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: float 15s infinite;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.nav-brand .glitch {
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: var(--glow-primary);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

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

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 5% 50px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    z-index: 10;
    max-width: 800px;
}

.glitch-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 100% {
        text-shadow: none;
    }
    92% {
        text-shadow: -2px 0 var(--secondary-color), 2px 0 var(--primary-color);
    }
    94% {
        text-shadow: 2px 0 var(--secondary-color), -2px 0 var(--primary-color);
    }
    96% {
        text-shadow: none;
    }
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    letter-spacing: 3px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-main);
    color: var(--bg-dark);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow-primary);
}

.hero-visual {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    z-index: 1;
}

.cyber-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 10s linear infinite;
}

.cyber-ring::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%;
    border: 2px solid transparent;
    border-bottom-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin 15s linear infinite reverse;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 特性展示 */
.features {
    padding: 100px 5%;
    background: var(--bg-card);
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-dark);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-secondary);
}

/* 最新文章 */
.latest-posts {
    padding: 100px 5%;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.post-card {
    background: var(--bg-card);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(0, 240, 255, 0.1);
    transition: all 0.3s ease;
}

.post-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.post-image {
    height: 200px;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.post-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-card:hover .post-overlay {
    opacity: 1;
}

.post-category {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.3rem 0.8rem;
    background: var(--gradient-main);
    color: var(--bg-dark);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 3px;
}

.post-content {
    padding: 1.5rem;
}

.post-content h3 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.post-card:hover .post-content h3 {
    color: var(--primary-color);
}

.post-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.read-more:hover {
    text-shadow: var(--glow-primary);
}

/* 页脚 */
.footer {
    background: var(--bg-card);
    padding: 50px 5% 20px;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-card);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .glitch-text {
        font-size: 2rem;
    }

    .hero-visual {
        display: none;
    }

    .section-title {
        font-size: 1.8rem;
    }
}