/* ===== V5 赛博朋克暗黑设计系统 ===== */

/* 设计理念：
   - 赛博朋克美学：霓虹色彩、暗黑背景、电路纹理
   - 黑客终端风格：代码界面、故障艺术、矩阵效果
   - 动态交互：粒子系统、打字机效果、呼吸灯
   - 未来科技感：3D变换、光影效果、数字雨
*/

/* ===== 赛博朋克色彩系统 ===== */
:root {
    /* 主色调 - 霓虹蓝 */
    --neon-blue: #00ffff;
    --neon-blue-dark: #00cccc;
    --neon-blue-light: #66ffff;
    --neon-blue-glow: rgba(0, 255, 255, 0.5);
    
    /* 辅助霓虹色 */
    --neon-pink: #ff0080;
    --neon-green: #00ff41;
    --neon-purple: #8000ff;
    --neon-yellow: #ffff00;
    --neon-orange: #ff8000;
    
    /* 背景色系 */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --bg-panel: #0d1117;
    --bg-terminal: #000000;
    
    /* 文本色系 */
    --text-primary: #00ff41;
    --text-secondary: #00ffff;
    --text-accent: #ff0080;
    --text-muted: #666666;
    --text-white: #ffffff;
    --text-code: #00ff00;
    
    /* 边框和线条 */
    --border-neon: #00ffff;
    --border-dim: #333333;
    --border-bright: #00ff41;
    
    /* 间距系统 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 3rem;
    --space-4xl: 4rem;
    --space-5xl: 5rem;
    --space-6xl: 6rem;
    
    /* 字体系统 */
    --font-display: 'Orbitron', 'Courier New', monospace;
    --font-code: 'Courier Prime', 'Courier New', monospace;
    --font-body: 'Rajdhani', 'Arial', sans-serif;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 4rem;
    
    /* 阴影系统 - 霓虹发光效果 */
    --glow-sm: 0 0 5px var(--neon-blue);
    --glow-md: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
    --glow-lg: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue), 0 0 40px var(--neon-blue);
    --glow-xl: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue), 0 0 40px var(--neon-blue), 0 0 80px var(--neon-blue);
    
    /* 绿色发光 */
    --glow-green: 0 0 5px var(--neon-green), 0 0 10px var(--neon-green);
    --glow-pink: 0 0 5px var(--neon-pink), 0 0 10px var(--neon-pink);
    
    /* 动画系统 */
    --ease-cyber: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-glitch: cubic-bezier(0.23, 1, 0.320, 1);
    
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
    --duration-glitch: 2s;
}

/* ===== 基础重置 ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.cyber-body {
    background: radial-gradient(ellipse at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

/* ===== 背景效果 ===== */
.matrix-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    opacity: 0.1;
}

.circuit-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 0, 128, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(0, 255, 65, 0.03) 0%, transparent 50%);
    animation: circuitPulse 4s ease-in-out infinite;
}

@keyframes circuitPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.glitch-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(
        90deg,
        transparent 98%,
        rgba(0, 255, 255, 0.03) 100%
    );
    animation: scanlines 0.1s linear infinite;
}

@keyframes scanlines {
    0% { transform: translateY(0); }
    100% { transform: translateY(2px); }
}

/* ===== 容器系统 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===== 导航终端 ===== */
.nav-terminal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-neon);
    box-shadow: var(--glow-sm);
}

.terminal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-dim);
}

.terminal-controls {
    display: flex;
    gap: var(--space-xs);
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: breathe 2s ease-in-out infinite;
}

.control-dot.red {
    background: #ff5f56;
    box-shadow: 0 0 5px #ff5f56;
}

.control-dot.yellow {
    background: #ffbd2e;
    box-shadow: 0 0 5px #ffbd2e;
    animation-delay: 0.2s;
}

.control-dot.green {
    background: #27ca3f;
    box-shadow: 0 0 5px #27ca3f;
    animation-delay: 0.4s;
}

@keyframes breathe {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.terminal-title {
    font-family: var(--font-code);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.terminal-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) 0;
}

.brand-terminal {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-code);
}

.prompt {
    color: var(--neon-green);
    font-weight: bold;
}

.brand-text {
    color: var(--text-primary);
    font-weight: bold;
    position: relative;
}

.cursor {
    color: var(--neon-blue);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.nav-commands {
    display: flex;
    gap: var(--space-xl);
}

.nav-cmd {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    font-family: var(--font-code);
    font-size: var(--text-sm);
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all var(--duration-normal) var(--ease-cyber);
    position: relative;
    overflow: hidden;
}

.nav-cmd::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    transition: left var(--duration-slow) var(--ease-cyber);
}

.nav-cmd:hover::before,
.nav-cmd.active::before {
    left: 100%;
}

.cmd-prompt {
    color: var(--neon-green);
}

.cmd-text {
    color: var(--text-secondary);
}

.cmd-status {
    color: var(--text-muted);
    font-size: var(--text-xs);
}

.nav-cmd:hover,
.nav-cmd.active {
    border-color: var(--border-neon);
    box-shadow: var(--glow-sm);
}

.nav-cmd.active .cmd-status {
    color: var(--neon-green);
}

.terminal-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.terminal-toggle span {
    width: 24px;
    height: 2px;
    background: var(--neon-blue);
    transition: all var(--duration-normal) var(--ease-cyber);
    box-shadow: var(--glow-sm);
}

/* ===== Hero终端区域 ===== */
.hero-terminal {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6xl) 0 var(--space-4xl);
    position: relative;
}

.main-terminal {
    background: var(--bg-terminal);
    border: 2px solid var(--border-neon);
    border-radius: 8px;
    box-shadow: var(--glow-lg);
    margin-bottom: var(--space-3xl);
    max-width: 800px;
    width: 100%;
}

.terminal-window {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    overflow: hidden;
}

.terminal-body {
    padding: var(--space-2xl);
    font-family: var(--font-code);
    background: var(--bg-terminal);
}

.code-lines {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.code-line {
    display: flex;
    gap: var(--space-lg);
    min-height: 24px;
    align-items: center;
}

.line-number {
    color: var(--text-muted);
    font-size: var(--text-sm);
    width: 40px;
    text-align: right;
    user-select: none;
}

.code-content {
    flex: 1;
    font-size: var(--text-base);
}

.keyword {
    color: var(--neon-pink);
    font-weight: bold;
}

.class-name {
    color: var(--neon-blue);
    font-weight: bold;
}

.function {
    color: var(--neon-yellow);
}

.property {
    color: var(--text-primary);
}

.string {
    color: var(--neon-green);
}

.comment {
    color: var(--text-muted);
    font-style: italic;
}

.operator {
    color: var(--text-secondary);
}

.indent {
    color: transparent;
}

.typing-line .typing-text {
    border-right: 2px solid var(--neon-blue);
    animation: typing 3s steps(30) infinite;
}

.cursor-block {
    color: var(--neon-blue);
    animation: blink 1s infinite;
}

@keyframes typing {
    0% { width: 0; }
    50% { width: 100%; }
    100% { width: 0; }
}

.hero-actions {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    margin-top: var(--space-3xl);
}

/* ===== 赛博朋克按钮系统 ===== */
.cyber-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) var(--space-2xl);
    font-family: var(--font-code);
    font-size: var(--text-base);
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    background: transparent;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.cyber-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--border-neon);
    background: transparent;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.btn-bg {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--neon-blue-glow), transparent);
    transition: left var(--duration-slow) var(--ease-cyber);
}

.btn-text {
    position: relative;
    z-index: 2;
    color: var(--text-secondary);
    transition: all var(--duration-normal) var(--ease-cyber);
}

.btn-glitch {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-pink);
    opacity: 0;
    z-index: 3;
}

.cyber-btn:hover .btn-bg {
    left: 100%;
}

.cyber-btn:hover {
    box-shadow: var(--glow-md);
    transform: translateY(-2px);
}

.cyber-btn:hover .btn-text {
    color: var(--text-white);
    text-shadow: var(--glow-sm);
}

.cyber-btn.primary::before {
    border-color: var(--neon-blue);
}

.cyber-btn.secondary::before {
    border-color: var(--neon-green);
}

.cyber-btn.secondary .btn-bg {
    background: linear-gradient(90deg, transparent, rgba(0, 255, 65, 0.3), transparent);
}

.cyber-btn.full-width {
    width: 100%;
}

/* ===== 滚动代码效果 ===== */
.scrolling-code {
    position: absolute;
    bottom: var(--space-2xl);
    left: 0;
    right: 0;
    overflow: hidden;
    height: 60px;
    opacity: 0.3;
}

.code-stream {
    display: flex;
    gap: var(--space-4xl);
    animation: scroll 20s linear infinite;
    font-family: var(--font-code);
    font-size: var(--text-sm);
    color: var(--text-primary);
    white-space: nowrap;
}

@keyframes scroll {
    from { transform: translateX(100%); }
    to { transform: translateX(-100%); }
}

/* ===== 通用区域样式 ===== */
section {
    padding: var(--space-6xl) 0;
    position: relative;
}

.section-header-cyber {
    text-align: center;
    margin-bottom: var(--space-5xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-panel);
    border: 1px solid var(--border-neon);
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-xl);
    box-shadow: var(--glow-sm);
}

.cyber-title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-xl);
}

/* ===== 故障文字效果 ===== */
.glitch-text {
    position: relative;
    color: var(--text-primary);
    animation: glitch var(--duration-glitch) infinite;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-text::before {
    animation: glitch-1 var(--duration-glitch) infinite;
    color: var(--neon-pink);
    z-index: -1;
}

.glitch-text::after {
    animation: glitch-2 var(--duration-glitch) infinite;
    color: var(--neon-blue);
    z-index: -1;
}

@keyframes glitch {
    0%, 90%, 100% {
        text-shadow: 
            0.05em 0 0 var(--neon-pink),
            -0.05em -0.025em 0 var(--neon-blue),
            0.025em 0.05em 0 var(--neon-green);
    }
    15% {
        text-shadow: 
            0.05em 0 0 var(--neon-pink),
            -0.05em -0.025em 0 var(--neon-blue),
            0.025em 0.05em 0 var(--neon-green);
    }
    16% {
        text-shadow: 
            -0.05em -0.025em 0 var(--neon-pink),
            0.025em 0.025em 0 var(--neon-blue),
            -0.05em -0.05em 0 var(--neon-green);
    }
    49% {
        text-shadow: 
            -0.05em -0.025em 0 var(--neon-pink),
            0.025em 0.025em 0 var(--neon-blue),
            -0.05em -0.05em 0 var(--neon-green);
    }
    50% {
        text-shadow: 
            0.025em 0.05em 0 var(--neon-pink),
            0.05em 0 0 var(--neon-blue),
            0 -0.05em 0 var(--neon-green);
    }
    99% {
        text-shadow: 
            0.025em 0.05em 0 var(--neon-pink),
            0.05em 0 0 var(--neon-blue),
            0 -0.05em 0 var(--neon-green);
    }
}

@keyframes glitch-1 {
    0% { clip-path: inset(40% 0 61% 0); }
    20% { clip-path: inset(92% 0 1% 0); }
    40% { clip-path: inset(43% 0 1% 0); }
    60% { clip-path: inset(25% 0 58% 0); }
    80% { clip-path: inset(54% 0 7% 0); }
    100% { clip-path: inset(58% 0 43% 0); }
}

@keyframes glitch-2 {
    0% { clip-path: inset(25% 0 58% 0); }
    20% { clip-path: inset(6% 0 78% 0); }
    40% { clip-path: inset(72% 0 1% 0); }
    60% { clip-path: inset(43% 0 1% 0); }
    80% { clip-path: inset(54% 0 7% 0); }
    100% { clip-path: inset(76% 0 9% 0); }
}

/* ===== 关于区域 ===== */
.about-cyber {
    background: var(--bg-secondary);
    position: relative;
}

.cyber-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5xl);
    align-items: start;
}

.info-panels {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.cyber-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.cyber-panel:hover {
    border-color: var(--border-neon);
    box-shadow: var(--glow-sm);
    transform: translateY(-4px);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-dim);
}

.panel-icon {
    font-size: var(--text-xl);
}

.panel-title {
    font-family: var(--font-code);
    color: var(--text-secondary);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.panel-content {
    padding: var(--space-lg);
}

.data-line {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-family: var(--font-code);
    font-size: var(--text-sm);
}

.data-label {
    color: var(--text-muted);
    min-width: 80px;
    text-transform: uppercase;
}

.data-value {
    color: var(--text-primary);
    text-decoration: none;
}

.data-value:hover {
    color: var(--text-secondary);
    text-shadow: var(--glow-sm);
}

.cyber-code {
    font-family: var(--font-code);
    color: var(--neon-green);
    background: rgba(0, 255, 65, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    border: 1px solid rgba(0, 255, 65, 0.3);
}

.mission-terminal {
    position: relative;
}

.mission-text {
    padding: var(--space-xl);
    font-family: var(--font-code);
}

.cyber-text {
    color: var(--text-primary);
    font-size: var(--text-base);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

/* ===== 服务区域 ===== */
.services-cyber {
    background: var(--bg-primary);
}

.services-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
}

.service-node {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    padding: var(--space-2xl);
    position: relative;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.service-node::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        transparent 0%,
        rgba(0, 255, 255, 0.05) 50%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-cyber);
}

.service-node:hover::before {
    opacity: 1;
}

.service-node:hover {
    border-color: var(--border-neon);
    box-shadow: var(--glow-md);
    transform: translateY(-8px);
}

.node-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.node-id {
    font-family: var(--font-code);
    color: var(--text-muted);
    font-size: var(--text-sm);
    text-transform: uppercase;
}

.node-status {
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-dim);
    border-radius: 4px;
    font-family: var(--font-code);
    font-size: var(--text-xs);
    text-transform: uppercase;
}

.node-status.active {
    color: var(--neon-green);
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.node-content h3 {
    font-family: var(--font-display);
    color: var(--text-secondary);
    font-size: var(--text-xl);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.node-desc {
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--space-xl);
}

.node-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.3);
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: var(--text-xs);
    border-radius: 4px;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.service-node:hover .tag {
    background: rgba(0, 255, 255, 0.2);
    border-color: var(--border-neon);
    color: var(--text-white);
}

.node-circuit {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(
        45deg,
        transparent 40%,
        var(--border-neon) 40%,
        var(--border-neon) 42%,
        transparent 42%,
        transparent 58%,
        var(--border-neon) 58%,
        var(--border-neon) 60%,
        transparent 60%
    );
    opacity: 0.1;
}

/* ===== 技术栈区域 ===== */
.tech-cyber {
    background: var(--bg-secondary);
}

.tech-arsenal {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-3xl);
}

.tech-category {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    padding: var(--space-2xl);
    transition: all var(--duration-normal) var(--ease-cyber);
}

.tech-category:hover {
    border-color: var(--border-bright);
    box-shadow: var(--glow-green);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.category-header h3 {
    font-family: var(--font-display);
    color: var(--text-secondary);
    font-size: var(--text-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.header-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-neon), transparent);
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.tech-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    transition: all var(--duration-normal) var(--ease-cyber);
}

.tech-item:hover {
    border-color: var(--border-neon);
    box-shadow: var(--glow-sm);
}

.tech-name {
    font-family: var(--font-code);
    color: var(--text-primary);
    font-weight: bold;
}

.tech-progress {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    width: 150px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--width, 0%);
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-green));
    border-radius: 3px;
    box-shadow: var(--glow-green);
    animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.progress-value {
    font-family: var(--font-code);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    min-width: 40px;
    text-align: right;
}

/* ===== 联系区域 ===== */
.contact-cyber {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5xl);
}

.info-terminal,
.interface-window {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    overflow: hidden;
}

.protocol-line {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    font-family: var(--font-code);
    font-size: var(--text-sm);
}

.protocol-label {
    color: var(--text-muted);
    min-width: 120px;
    text-transform: uppercase;
}

.protocol-value {
    color: var(--text-primary);
    text-decoration: none;
}

.protocol-value:hover {
    color: var(--text-secondary);
    text-shadow: var(--glow-sm);
}

/* ===== 表单系统 ===== */
.cyber-form {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.input-group {
    position: relative;
}

.input-label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--text-muted);
    font-family: var(--font-code);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-input,
.cyber-select,
.cyber-textarea {
    width: 100%;
    padding: var(--space-lg);
    background: var(--bg-terminal);
    border: 1px solid var(--border-dim);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: var(--text-base);
    transition: all var(--duration-normal) var(--ease-cyber);
}

.cyber-input:focus,
.cyber-select:focus,
.cyber-textarea:focus {
    outline: none;
    border-color: var(--border-neon);
    box-shadow: var(--glow-sm);
    background: rgba(0, 255, 255, 0.05);
}

.cyber-input::placeholder,
.cyber-textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-blue);
    transition: width var(--duration-normal) var(--ease-cyber);
}

.cyber-input:focus + .input-line,
.cyber-select:focus + .input-line,
.cyber-textarea:focus + .input-line {
    width: 100%;
}

.cyber-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: var(--font-code);
}

/* ===== 页脚 ===== */
.footer-cyber {
    background: var(--bg-terminal);
    border-top: 1px solid var(--border-dim);
    padding: var(--space-5xl) 0 var(--space-2xl);
}

.footer-terminal {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    box-shadow: var(--glow-sm);
}

.footer-info {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-4xl);
    padding: var(--space-3xl);
    border-bottom: 1px solid var(--border-dim);
}

.brand-cyber {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.brand-symbol {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--neon-blue);
    color: var(--bg-terminal);
    font-size: var(--text-xl);
    font-weight: bold;
    border-radius: 6px;
    box-shadow: var(--glow-md);
}

.brand-name {
    font-family: var(--font-display);
    color: var(--text-primary);
    font-size: var(--text-xl);
    font-weight: bold;
}

.brand-tagline {
    color: var(--text-muted);
    font-family: var(--font-code);
    font-size: var(--text-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.link-section h4 {
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-dim);
    padding-bottom: var(--space-sm);
}

.link-section a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-code);
    font-size: var(--text-sm);
    padding: var(--space-xs) 0;
    transition: color var(--duration-normal) var(--ease-cyber);
}

.link-section a:hover {
    color: var(--text-primary);
    text-shadow: var(--glow-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-3xl);
    font-family: var(--font-code);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top-cyber {
    position: fixed;
    bottom: var(--space-2xl);
    right: var(--space-2xl);
    width: 60px;
    height: 60px;
    background: var(--bg-panel);
    border: 2px solid var(--border-neon);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-cyber);
    z-index: 1000;
    box-shadow: var(--glow-md);
}

.back-to-top-cyber.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top-cyber:hover {
    background: rgba(0, 255, 255, 0.1);
    transform: translateY(-4px);
    box-shadow: var(--glow-lg);
}

.btn-icon {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    font-weight: bold;
}

.back-to-top-cyber .btn-text {
    font-family: var(--font-code);
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ===== 通知终端 ===== */
.notification-terminal {
    position: fixed;
    top: var(--space-2xl);
    right: var(--space-2xl);
    z-index: 2000;
    max-width: 400px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .cyber-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .tech-arsenal {
        grid-template-columns: 1fr;
    }
    
    .footer-info {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .terminal-toggle {
        display: flex;
    }
    
    .nav-commands {
        position: fixed;
        top: 100px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        border-top: 1px solid var(--border-neon);
        padding: var(--space-2xl);
        flex-direction: column;
        gap: var(--space-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--duration-normal) var(--ease-cyber);
        pointer-events: none;
    }
    
    .nav-commands.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .services-matrix {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cyber-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .main-terminal {
        margin: 0 var(--space-sm);
    }
    
    .terminal-body {
        padding: var(--space-lg);
    }
    
    .cyber-title {
        font-size: var(--text-2xl);
    }
    
    .code-content {
        font-size: var(--text-sm);
    }
    
    .hero-terminal {
        padding: var(--space-4xl) 0 var(--space-3xl);
    }
}

/* ===== 性能优化 ===== */
.terminal-window,
.cyber-panel,
.service-node,
.tech-category {
    will-change: transform;
}

/* ===== 可访问性 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .glitch-text::before,
    .glitch-text::after {
        display: none;
    }
}

/* ===== 高对比度模式 ===== */
@media (prefers-contrast: high) {
    :root {
        --neon-blue: #ffffff;
        --neon-green: #ffffff;
        --text-primary: #ffffff;
        --bg-primary: #000000;
        --border-neon: #ffffff;
    }
}