/* 基础样式 */
:root {
    --neon-pink: #ff2a6d;
    --neon-blue: #05d9e8;
    --neon-green: #05ffa1;
    --neon-purple: #d300c5;
    --neon-yellow: #fee800;
    --dark-bg: #0d0221;
    --darker-bg: #0a0118;
    --card-bg: rgba(13, 2, 33, 0.8);
    --border-color: rgba(5, 217, 232, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Orbitron', 'Rajdhani', sans-serif;
}

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

.cyber-bg {
    background-color: var(--dark-bg);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(5, 217, 232, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 42, 109, 0.1) 0%, transparent 20%);
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.cyber-nav {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 10;
}

.logo {
    font-size: 1.8rem;
}

.neon-text {
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue), 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    position: relative;
}

.neon-hover:hover {
    color: var(--neon-pink);
    text-shadow: 0 0 5px var(--neon-pink), 0 0 10px var(--neon-pink);
}

.nav-link.active {
    color: var(--neon-green);
    text-shadow: 0 0 5px var(--neon-green), 0 0 10px var(--neon-green);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 0;
    background-color: var(--neon-blue);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* 赛博卡片样式 */
.cyber-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.cyber-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
}

.cyber-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-pink), transparent);
}

/* 标题样式 */
.neon-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}

.text-shadow {
    color: transparent;
    -webkit-text-stroke: 1px var(--neon-blue);
}

.text-glow {
    color: var(--neon-pink);
    text-shadow: 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink), 0 0 30px var(--neon-pink);
}

.neon-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue);
}

/* 主内容区 */
.main-content {
    padding: 4rem 0;
}

/* 特性网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-box {
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-10px);
}

.neon-border {
    border: 1px solid transparent;
    box-shadow: 0 0 5px var(--neon-blue), inset 0 0 5px var(--neon-blue);
}

.neon-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--neon-green);
    text-shadow: 0 0 10px var(--neon-green);
}

/* 按钮样式 */
.cyber-btn {
    background: transparent;
    border: 1px solid;
    color: #fff;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.neon-pink {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
    box-shadow: 0 0 5px var(--neon-pink);
}

.neon-pink:hover {
    background-color: rgba(255, 42, 109, 0.2);
    box-shadow: 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink);
}

.neon-blue {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    box-shadow: 0 0 5px var(--neon-blue);
}

.neon-blue:hover {
    background-color: rgba(5, 217, 232, 0.2);
    box-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
}

.neon-green {
    border-color: var(--neon-green);
    color: var(--neon-green);
    box-shadow: 0 0 5px var(--neon-green);
}

.neon-green:hover {
    background-color: rgba(5, 255, 161, 0.2);
    box-shadow: 0 0 10px var(--neon-green), 0 0 20px var(--neon-green);
}

.neon-purple {
    color: var(--neon-purple);
    text-shadow: 0 0 5px var(--neon-purple);
}

.neon-yellow {
    color: var(--neon-yellow);
    text-shadow: 0 0 5px var(--neon-yellow);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.full-width {
    width: 100%;
}

/* 登录注册表单 */
.login-card {
    max-width: 500px;
    margin: 0 auto;
}

.cyber-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.neon-label {
    color: var(--neon-blue);
    font-size: 1.1rem;
}

.cyber-input {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    padding: 0.8rem;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.cyber-input:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 5px var(--neon-green);
}

.form-actions {
    margin-top: 1rem;
}

.form-link {
    text-align: center;
    margin-top: 1.5rem;
}

.neon-link {
    color: var(--neon-pink);
    text-decoration: none;
    text-shadow: 0 0 5px var(--neon-pink);
}

.neon-link:hover {
    text-decoration: underline;
}

/* 消息提示 */
.message {
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 4px;
    text-align: center;
}

.message.error {
    border: 1px solid var(--neon-pink);
    color: var(--neon-pink);
    background-color: rgba(255, 42, 109, 0.1);
}

.message.success {
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    background-color: rgba(5, 255, 161, 0.1);
}

.hidden {
    display: none;
}

/* 仪表盘样式 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.invite-code-box {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
    text-align: center;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: var(--neon-green);
}

.code-placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.share-options {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.share-count-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--neon-blue);
    background: transparent;
    color: var(--neon-blue);
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-count-btn:hover, .share-count-btn.selected {
    background-color: var(--neon-blue);
    color: var(--dark-bg);
    box-shadow: 0 0 10px var(--neon-blue);
}

#share-invite:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.invite-list, .chain-list {
    margin: 1rem 0;
    max-height: 200px;
    overflow-y: auto;
}

.invite-item, .chain-item {
    padding: 0.8rem;
    border-bottom: 1px solid rgba(5, 217, 232, 0.2);
    display: flex;
    justify-content: space-between;
}

.empty-state {
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    padding: 2rem 0;
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-content {
    max-width: 500px;
    width: 90%;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--neon-pink);
}

.close-modal-btn {
    margin-top: 1rem;
}

/* 页脚样式 */
.cyber-footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    margin-top: 4rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 赛博朋克装饰 */
.cyber-decoration {
    position: fixed;
    width: 300px;
    height: 300px;
    z-index: -1;
    opacity: 0.1;
}

.top-left {
    top: -100px;
    left: -100px;
    background: radial-gradient(circle, var(--neon-pink) 0%, transparent 70%);
}

.bottom-right {
    bottom: -100px;
    right: -100px;
    background: radial-gradient(circle, var(--neon-blue) 0%, transparent 70%);
}

/* 故障艺术效果 */
.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: -1px 0 var(--neon-pink);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -1px 0 var(--neon-blue);
    clip: rect(24px, 450px, 76px, 0);
    animation: glitch-anim2 5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(42px, 9999px, 44px, 0); }
    5% { clip: rect(12px, 9999px, 59px, 0); }
    10% { clip: rect(48px, 9999px, 29px, 0); }
    15% { clip: rect(42px, 9999px, 73px, 0); }
    20% { clip: rect(63px, 9999px, 27px, 0); }
    25% { clip: rect(34px, 9999px, 55px, 0); }
    30% { clip: rect(86px, 9999px, 73px, 0); }
    35% { clip: rect(20px, 9999px, 20px, 0); }
    40% { clip: rect(26px, 9999px, 60px, 0); }
    45% { clip: rect(25px, 9999px, 66px, 0); }
    50% { clip: rect(57px, 9999px, 98px, 0); }
    55% { clip: rect(5px, 9999px, 46px, 0); }
    60% { clip: rect(82px, 9999px, 31px, 0); }
    65% { clip: rect(54px, 9999px, 27px, 0); }
    70% { clip: rect(28px, 9999px, 99px, 0); }
    75% { clip: rect(45px, 9999px, 69px, 0); }
    80% { clip: rect(23px, 9999px, 85px, 0); }
    85% { clip: rect(54px, 9999px, 84px, 0); }
    90% { clip: rect(45px, 9999px, 47px, 0); }
    95% { clip: rect(37px, 9999px, 20px, 0); }
    100% { clip: rect(4px, 9999px, 91px, 0); }
}

@keyframes glitch-anim2 {
    0% { clip: rect(65px, 9999px, 100px, 0); }
    5% { clip: rect(52px, 9999px, 74px, 0); }
    10% { clip: rect(79px, 9999px, 85px, 0); }
    15% { clip: rect(75px, 9999px, 5px, 0); }
    20% { clip: rect(67px, 9999px, 61px, 0); }
    25% { clip: rect(14px, 9999px, 79px, 0); }
    30% { clip: rect(1px, 9999px, 66px, 0); }
    35% { clip: rect(86px, 9999px, 30px, 0); }
    40% { clip: rect(23px, 9999px, 98px, 0); }
    45% { clip: rect(85px, 9999px, 72px, 0); }
    50% { clip: rect(71px, 9999px, 75px, 0); }
    55% { clip: rect(2px, 9999px, 48px, 0); }
    60% { clip: rect(30px, 9999px, 16px, 0); }
    65% { clip: rect(59px, 9999px, 50px, 0); }
    70% { clip: rect(41px, 9999px, 62px, 0); }
    75% { clip: rect(2px, 9999px, 82px, 0); }
    80% { clip: rect(47px, 9999px, 73px, 0); }
    85% { clip: rect(3px, 9999px, 27px, 0); }
    90% { clip: rect(26px, 9999px, 55px, 0); }
    95% { clip: rect(42px, 9999px, 97px, 0); }
    100% { clip: rect(38px, 9999px, 49px, 0); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }
    
    .neon-title {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .nav-link {
        font-size: 1rem;
    }
    
    .cyber-card {
        padding: 1.5rem;
    }
}