/* 基础重置与变量 */
:root {
    --primary-color: #00ff88;
    --secondary-color: #0088ff;
    --accent-color: #ff0088;
    --bg-dark: #0a0a0f;
    --bg-card: #141420;
    --text-primary: #ffffff;
    --text-secondary: #a0a0c0;
    --border-color: #2a2a40;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff3366;
    --cyber-glow: 0 0 15px var(--primary-color);
    --font-main: 'Exo 2', sans-serif;
    --font-title: 'Orbitron', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 网格背景 */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.1;
    pointer-events: none;
    z-index: -1;
}

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

/* 头部样式 */
.cyber-header {
    margin-bottom: 40px;
    padding: 20px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.logo-icon {
    font-size: 3em;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

.cyber-title {
    font-family: var(--font-title);
    font-size: 2.5em;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text; /* Chrome, Safari, Edge */
    background-clip: text; /* 标准属性 */
    -webkit-text-fill-color: transparent; /* Chrome, Safari, Edge */
    color: transparent; /* 标准属性 */
    position: relative;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cyber-title::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    text-shadow: 0 0 20px var(--primary-color);
    opacity: 0.3;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2em;
    margin-bottom: 30px;
}

/* 卡片样式 */
.cyber-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.cyber-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: scanline 3s linear infinite;
}

.cyber-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--cyber-glow);
    transform: translateY(-2px);
}

/* 按钮样式 */
.cyber-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 6px;
    font-family: var(--font-main);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-btn:hover {
    border-color: var(--primary-color);
    box-shadow: var(--cyber-glow);
    transform: translateY(-1px);
}

.cyber-btn.primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: var(--bg-dark);
}

.cyber-btn.secondary {
    background: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
}

.cyber-btn.danger {
    background: transparent;
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.cyber-btn.small {
    padding: 6px 12px;
    font-size: 0.9em;
}

/* 输入框样式 */
.cyber-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 12px;
    font-family: var(--font-main);
    font-size: 1em;
    width: 100%;
    transition: all 0.3s ease;
}

.cyber-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.cyber-input.large {
    font-size: 1.2em;
    padding: 15px;
}

.cyber-textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 15px;
    font-family: var(--font-main);
    font-size: 1.1em;
    width: 100%;
    resize: vertical;
    min-height: 150px;
    transition: all 0.3s ease;
}

.cyber-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

/* 消息列表 */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.message-item:hover {
    background: rgba(0, 255, 136, 0.05);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.message-item.new {
    animation: highlight 1s ease;
}

.message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.9em;
    color: var(--text-secondary);
}

.message-time {
    font-family: var(--font-title);
    color: var(--primary-color);
}

.message-id {
    font-family: 'Courier New', monospace;
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.8em;
}

.message-content {
    font-size: 1.1em;
    line-height: 1.6;
    color: var(--text-primary);
}

/* 统计网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.stat-icon {
    font-size: 2em;
    color: var(--primary-color);
}

.stat-value {
    font-size: 1.8em;
    font-family: var(--font-title);
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9em;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-card);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5em;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--error-color);
}

/* 状态栏 */
.status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(20, 20, 32, 0.9);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    font-size: 0.9em;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online {
    background: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

.status-dot.offline {
    background: var(--error-color);
    box-shadow: 0 0 10px var(--error-color);
}

/* 通知 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    transform: translateX(150%);
    transition: transform 0.3s ease;
    z-index: 1001;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-color: var(--success-color);
    color: var(--success-color);
}

.notification.error {
    border-color: var(--error-color);
    color: var(--error-color);
}

.notification.info {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* 动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        text-shadow: 0 0 10px var(--primary-color);
    }
    50% {
        opacity: 0.7;
        text-shadow: 0 0 20px var(--primary-color);
    }
}

@keyframes scanline {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

@keyframes highlight {
    0% {
        background: rgba(0, 255, 136, 0.3);
        border-color: var(--primary-color);
    }
    100% {
        background: rgba(255, 255, 255, 0.05);
        border-color: var(--border-color);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .cyber-title {
        font-size: 1.8em;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .status-bar {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }
}

/* 发送页面特定样式 */
.send-container {
    max-width: 600px;
}

.send-card {
    border: 1px solid var(--secondary-color);
}

.recipient-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.label {
    color: var(--text-secondary);
    font-size: 0.9em;
}

.cyber-text {
    font-family: var(--font-title);
    color: var(--primary-color);
    font-size: 1.2em;
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.char-counter {
    color: var(--text-secondary);
    font-size: 0.9em;
}

.editor-tools {
    display: flex;
    gap: 5px;
}

.tool-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-btn:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
}

.privacy-notice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 20px 0;
    padding: 15px;
    background: rgba(0, 136, 255, 0.1);
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.privacy-notice i {
    color: var(--secondary-color);
    font-size: 1.2em;
    margin-top: 2px;
}

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 30px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4em;
    color: var(--border-color);
    margin-bottom: 20px;
    opacity: 0.5;
}

/* 二维码容器 */
.qr-container {
    text-align: center;
    margin: 20px 0;
}

#qrcode {
    display: inline-block;
    padding: 10px;
    background: white;
    border-radius: 8px;
    margin-bottom: 10px;
}

/* 社交媒体按钮 */
.social-share {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.social-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.social-btn.twitter {
    background: #1DA1F2;
}

.social-btn.telegram {
    background: #0088cc;
}

.social-btn.whatsapp {
    background: #25D366;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 社交媒体按钮样式 */
.social-share {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

.social-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.social-btn.qq {
    background: #12B7F5;
}

.social-btn.weibo {
    background: #E6162D;
}

@media (max-width: 768px) {
    .social-share {
        flex-direction: column;
    }
}