/* ===================================================================
   OKXX CYBER PORTAL - CORE STYLESHEET
   Aesthetic: Deep Tech, Quantum Cyberpunk, Sci-Fi HUD, High-Density Canvas
   =================================================================== */

:root {
  --bg-deep: #030712;
  --bg-dark: #050817;
  --bg-surface: rgba(10, 16, 31, 0.75);
  --bg-card: rgba(13, 21, 41, 0.65);
  --bg-card-hover: rgba(18, 30, 60, 0.85);

  --neon-cyan: #00f0ff;
  --neon-purple: #7000ff;
  --neon-pink: #ff007f;
  --neon-green: #00ff88;
  --neon-yellow: #ffb703;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-glow: rgba(0, 240, 255, 0.35);
  --border-subtle: rgba(0, 240, 255, 0.12);
  --border-purple: rgba(112, 0, 255, 0.35);

  --font-display: 'Orbitron', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #0a1128 0%, #030712 75%);
}

/* 隐藏系统默认滚动条并美化为赛博风格 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: var(--neon-cyan);
  border-radius: 3px;
  box-shadow: 0 0 10px var(--neon-cyan);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--neon-pink);
}

/* 屏幕微弱科技扫描线纹理 */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
              linear-gradient(90deg, rgba(255, 0, 0, 0.02), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.02));
  background-size: 100% 3px, 3px 100%;
  z-index: 999;
  opacity: 0.7;
}

/* 动态背景画布 */
#cyber-bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

/* 全屏点击粒子特效画布 */
#click-fx-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99998;
  pointer-events: none;
}

/* 赛博光标 */
#cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--neon-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  box-shadow: 0 0 8px var(--neon-cyan);
  transform: translate(-100px, -100px);
  margin-left: -3px;
  margin-top: -3px;
}

#cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(0, 240, 255, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-100px, -100px);
  margin-left: -16px;
  margin-top: -16px;
  transition: width 0.2s, height 0.2s, border-color 0.2s;
}

#cursor-ring.cursor-hover {
  width: 52px;
  height: 52px;
  margin-left: -26px;
  margin-top: -26px;
  border-color: var(--neon-pink);
  background: rgba(255, 0, 127, 0.08);
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
}

/* 系统启动全屏层 */
#boot-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #030712;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease;
}

#boot-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.boot-box {
  width: 90%;
  max-width: 480px;
  text-align: center;
  padding: 30px;
  background: rgba(10, 16, 31, 0.85);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
  clip-path: polygon(0 15px, 15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
}

.boot-logo {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--neon-cyan);
  letter-spacing: 4px;
  text-shadow: 0 0 15px var(--neon-cyan);
  margin-bottom: 20px;
}

.boot-progress-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  margin: 15px 0;
  position: relative;
}

#boot-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
  box-shadow: 0 0 10px var(--neon-cyan);
  transition: width 0.15s ease-out;
}

#boot-status-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

/* 主容器布局 */
.portal-wrapper {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 100vh;
}

/* 顶部 HUD 导航栏 */
.hud-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: rgba(5, 8, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 100;
}

.hud-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.hud-logo-icon {
  width: 32px;
  height: 32px;
}

.hud-brand-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 2px;
}

.hud-brand-title span {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan);
}

.hud-status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  padding: 4px 10px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-green);
}

.status-dot-blink {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.8); }
}

.hud-nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.hud-nav-links a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  transition: all 0.2s ease;
  position: relative;
  padding: 6px 0;
}

.hud-nav-links a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan);
}

.hud-nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--neon-cyan);
  transition: width 0.2s ease;
}

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

.hud-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.hud-metric-pill {
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 4px;
}

.hud-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1rem;
}

.hud-btn:hover {
  background: rgba(0, 240, 255, 0.2);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
}

.hud-btn.sound-on {
  border-color: var(--neon-green);
  color: var(--neon-green);
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
}

/* ================= HERO 核心舞台 ================= */
.hero-section {
  min-height: 100vh;
  padding-top: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  text-align: center;
  padding-left: 20px;
  padding-right: 20px;
}

.hero-particle-container {
  width: 100%;
  max-width: 900px;
  height: 380px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

#particle-text-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.particle-hint-pill {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-glow);
  padding: 4px 14px;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  pointer-events: none;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; box-shadow: 0 0 12px var(--neon-cyan); }
}

.hero-subtitle-box {
  margin-top: 15px;
  margin-bottom: 25px;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--neon-cyan);
  letter-spacing: 2px;
  min-height: 28px;
}

.scramble-char {
  color: var(--neon-pink);
}

.hero-description {
  max-width: 680px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 35px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 赛博切角按钮样式 */
.btn-cyber {
  position: relative;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--neon-cyan);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-cyber:hover {
  background: var(--neon-cyan);
  color: #030712;
  box-shadow: 0 0 25px var(--neon-cyan);
  transform: translateY(-2px);
}

.btn-cyber-purple {
  border-color: var(--neon-purple);
  background: rgba(112, 0, 255, 0.15);
}

.btn-cyber-purple:hover {
  background: var(--neon-purple);
  color: #fff;
  box-shadow: 0 0 25px var(--neon-purple);
}

.btn-cyber-outline {
  border-color: rgba(255, 255, 255, 0.25);
  background: transparent;
}

.btn-cyber-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

/* ================= 遥测数据条 ================= */
.telemetry-band {
  width: 100%;
  background: rgba(5, 8, 23, 0.7);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 18px 0;
  margin-top: 40px;
}

.telemetry-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 0 20px;
}

.telemetry-item {
  display: flex;
  align-items: center;
  gap: 15px;
  border-left: 2px solid var(--neon-cyan);
  padding-left: 15px;
}

.telemetry-icon {
  font-size: 1.6rem;
  color: var(--neon-cyan);
}

.telemetry-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.telemetry-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ================= 通用区块设计 ================= */
.section-container {
  max-width: 1200px;
  margin: 80px auto;
  padding: 0 24px;
  position: relative;
}

.section-header {
  margin-bottom: 40px;
  text-align: left;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--neon-cyan);
  letter-spacing: 2px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::before {
  content: "//";
  color: var(--neon-pink);
  font-weight: bold;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}

/* 玻璃拟态卡片 */
.cyber-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  padding: 28px;
  border-radius: 4px;
  position: relative;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.cyber-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.cyber-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.12);
  background: var(--bg-card-hover);
}

.cyber-card:hover::before {
  opacity: 1;
}

/* 卡片装饰角标 */
.card-corner-tr {
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 18px 18px 0;
  border-color: transparent var(--neon-cyan) transparent transparent;
  opacity: 0.6;
}

/* ================= 核心能力模块 ================= */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.module-icon-box {
  width: 48px;
  height: 48px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--neon-cyan);
}

.module-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.module-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.module-stats-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.module-stats-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-green));
}

.module-stats-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ================= HUD 全息战术仪表盘与雷达 ================= */
.hud-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.hud-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.hud-panel-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
  margin-bottom: 15px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--neon-cyan);
}

.radar-canvas-box {
  width: 260px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wave-canvas-box {
  width: 100%;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hud-telemetry-readout {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 15px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.readout-item {
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 12px;
  border-left: 2px solid var(--neon-purple);
}

.readout-item span {
  color: var(--neon-cyan);
  font-weight: bold;
}

/* ================= 精选项目空间 ================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-pink);
  border: 1px solid rgba(255, 0, 127, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
  background: rgba(255, 0, 127, 0.08);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.project-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.project-techs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tech-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.06);
  padding: 2px 6px;
  border-radius: 2px;
}

.project-link-btn {
  color: var(--neon-cyan);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.project-link-btn:hover {
  color: #fff;
  text-shadow: 0 0 10px var(--neon-cyan);
}

/* ================= 交互式赛博终端 ================= */
.terminal-window {
  background: rgba(3, 7, 18, 0.9);
  border: 1px solid var(--border-glow);
  border-radius: 6px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 240, 255, 0.15);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.terminal-header {
  background: rgba(10, 16, 31, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

.term-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.term-dot.red { background: #ff5f56; }
.term-dot.yellow { background: #ffbd2e; }
.term-dot.green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.terminal-quick-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.term-quick-btn {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--neon-cyan);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
}

.term-quick-btn:hover {
  background: var(--neon-cyan);
  color: #030712;
}

.terminal-body {
  padding: 20px;
  height: 320px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
}

.terminal-line {
  margin-bottom: 6px;
  word-break: break-word;
}

.terminal-command {
  color: #fff;
}

.terminal-error {
  color: var(--neon-pink);
}

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

.terminal-input-row {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  background: rgba(5, 8, 23, 0.95);
  border-top: 1px solid var(--border-subtle);
  gap: 10px;
}

.terminal-prompt-label {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--neon-green);
  font-weight: bold;
}

#terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #fff;
  caret-color: var(--neon-cyan);
}

/* ================= 模式切换悬浮控制台 ================= */
.mode-dock {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(5, 8, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  padding: 6px;
  display: flex;
  gap: 6px;
  z-index: 1000;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.6);
}

.mode-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mode-btn:hover {
  color: #fff;
  background: rgba(0, 240, 255, 0.1);
}

.mode-btn.active {
  background: var(--neon-cyan);
  color: #030712;
  font-weight: bold;
  box-shadow: 0 0 12px var(--neon-cyan);
}

/* ================= 页脚 ================= */
.portal-footer {
  width: 100%;
  border-top: 1px solid var(--border-subtle);
  background: rgba(3, 7, 18, 0.95);
  padding: 40px 24px 80px;
  text-align: center;
  position: relative;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 2px;
}

.footer-social-links {
  display: flex;
  gap: 20px;
}

.social-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
}

.social-link:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ================= 响应式适配 ================= */
@media (max-width: 900px) {
  .hud-nav-links {
    display: none;
  }
  .hud-dashboard-grid {
    grid-template-columns: 1fr;
  }
  .hero-particle-container {
    height: 280px;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .mode-dock {
    bottom: 12px;
    right: 12px;
    left: 12px;
    justify-content: center;
  }
}

/* 触控设备隐藏模拟光标 */
@media (hover: none) and (pointer: coarse) {
  #cursor-dot, #cursor-ring {
    display: none !important;
  }
}