@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@300;400;500;700&display=swap');

/* Cyberpunk Style CSS */
:root {
    --cyber-bg: #0a0a12;
    --cyber-bg-secondary: #121220;
    --cyber-text-primary: #e0e0ff;
    --cyber-text-secondary: #a0a0c0;
    --cyber-accent: #00f3ff; /* 青色霓虹 */
    --cyber-accent-secondary: #ff00f7; /* 粉色霓虹 */
    --cyber-purple: #b967ff; /* 紫色霓虹 */
    --cyber-green: #00ff88; /* 绿色霓虹 */
    --white: #ffffff;
    --spacing-xs: 0.5rem;
    --spacing-s: 1rem;
    --spacing-m: 2rem;
    --spacing-l: 4rem;
    --spacing-xl: 8rem;
}

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

body {
    font-family: 'Orbitron', 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    color: var(--cyber-text-primary);
    line-height: 1.5;
    background-color: var(--cyber-bg);
    -webkit-font-smoothing: antialiased;
    position: relative;
    /* 赛博朋克风格自定义光标 */
    cursor: url("svg/cursor.svg") 12 12, crosshair;
}

/* 赛博朋克交互元素光标效果 */
a:hover,
.btn:hover,
.card:hover,
.nav-container a:hover {
    cursor: url("svg/cursor.svg") 12 12, pointer;
}

/* 按钮和可点击元素的光标 */
.btn,
a {
    cursor: url("svg/cursor.svg") 12 12, pointer;
    transition: cursor 0.2s ease;
}

/* 输入框光标保持默认 */
input,
textarea {
    cursor: text;
}

/* 赛博朋克网格背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(rgba(18, 18, 32, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18, 18, 32, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    z-index: -1;
    opacity: 0.3;
}

/* 扫描线效果 */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 18, 32, 0) 50%, rgba(0, 243, 255, 0.03) 50%);
    background-size: 100% 4px;
    z-index: -1;
    animation: scan 8s linear infinite;
    opacity: 0.7;
}

@keyframes scan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    position: relative;
}

/* 链接霓虹效果 */
a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--cyber-accent);
    box-shadow: 0 0 8px var(--cyber-accent);
    transition: width 0.3s ease;
}

a:hover::after {
    width: 100%;
}

a:hover {
    color: var(--cyber-accent);
    text-shadow: 0 0 8px var(--cyber-accent);
}

ul {
    list-style: none;
}

/* Header & Navigation */
header {
    background: var(--cyber-bg-secondary);
    color: var(--cyber-text-primary);
    height: 3rem;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 243, 255, 0.3);
    box-shadow: 0 2px 10px rgba(0, 243, 255, 0.1);
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-s);
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--cyber-accent);
    text-shadow: 0 0 10px var(--cyber-accent);
}

.logo img {
    height: 1.5rem;
    margin-right: 0.5rem;
    filter: drop-shadow(0 0 5px var(--cyber-accent));
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: var(--spacing-m);
}

nav ul li a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--cyber-text-primary);
}

nav ul li a:hover {
    color: var(--cyber-accent);
    text-shadow: 0 0 8px var(--cyber-accent);
}

/* Hero Section */
.hero {
    background-color: var(--cyber-bg-secondary);
    color: var(--cyber-text-primary);
    padding: var(--spacing-xl) var(--spacing-m);
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-left: 3px solid var(--cyber-accent);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 243, 255, 0.1));
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-m);
    max-width: 800px;
    color: var(--white);
    text-shadow: 0 0 15px rgba(0, 243, 255, 0.7);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: var(--spacing-l);
    color: var(--cyber-text-secondary);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--cyber-accent);
    font-weight: 400;
    border: 1px solid var(--cyber-accent);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 243, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover {
    background: rgba(0, 243, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.5);
    text-shadow: 0 0 8px var(--cyber-accent);
}

.btn:hover::before {
    left: 100%;
}

/* Sections */
section {
    padding: var(--spacing-xl) var(--spacing-m);
}

h2 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-l);
    color: var(--white);
    text-shadow: 0 0 10px rgba(185, 103, 255, 0.5);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-m);
}

.card {
    background: var(--cyber-bg-secondary);
    padding: var(--spacing-m);
    transition: all 0.3s ease;
    border: 1px solid rgba(185, 103, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--cyber-accent), var(--cyber-purple));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover {
    background: rgba(18, 18, 32, 0.7);
    border-color: var(--cyber-purple);
    box-shadow: 0 0 20px rgba(185, 103, 255, 0.3);
    transform: translateY(-5px);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--spacing-s);
    filter: drop-shadow(0 0 8px var(--cyber-purple));
}

.card h3 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-s);
    color: var(--cyber-accent);
}

/* Footer */
footer {
    background: var(--cyber-bg-secondary);
    color: var(--cyber-text-primary);
    padding: var(--spacing-l) var(--spacing-m);
    font-size: 0.875rem;
    border-top: 1px solid rgba(0, 243, 255, 0.3);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-l);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-s);
    color: var(--cyber-accent);
    text-shadow: 0 0 10px var(--cyber-accent);
    font-family: 'Orbitron', sans-serif;
}

.footer-links h4 {
    margin-bottom: var(--spacing-s);
    color: var(--cyber-accent);
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a {
    color: var(--cyber-text-secondary);
}

.footer-links ul li a:hover {
    color: var(--cyber-accent);
    text-shadow: 0 0 8px var(--cyber-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(185, 103, 255, 0.3);
    padding-top: var(--spacing-m);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-s);
}

.legal-links a {
    margin-right: var(--spacing-s);
    color: var(--cyber-text-secondary);
}

.legal-links a:hover {
    color: var(--cyber-accent);
    text-shadow: 0 0 8px var(--cyber-accent);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-m);
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--cyber-text-primary);
}

input, textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--cyber-bg);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: var(--cyber-text-primary);
    outline: none;
}

input:focus, textarea:focus {
    border-color: var(--cyber-accent);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { 
        font-size: 2.5rem; 
        text-align: center;
    }
    .hero {
        text-align: center;
        border-left: none;
        border-top: 3px solid var(--cyber-accent);
    }
    .footer-grid { 
        grid-template-columns: 1fr; 
    }
    body::before {
        background-size: 15px 15px;
    }
}