/* ============================================
   反诈模拟器 — 通用样式表
   暗色科技感 · 霓虹警示色 · 卡片式布局
   ============================================ */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-bg: #060d1a;
  --color-bg-card: #0b1628;
  --color-bg-card-hover: #101e38;
  --color-primary: #4d9eff;
  --color-danger: #ff5577;
  --color-warning: #ffbb33;
  --color-success: #33dd99;
  --color-text: #d6e2f0;
  --color-text-dim: #6a85a8;
  --color-border: #1a2d4a;
  --color-glow: rgba(77, 158, 255, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.25s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #060d1a 0%, #0a1628 50%, #0d1a30 100%);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 0;
  margin: 0;
}

/* --- 导航栏 --- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(6, 13, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .logo {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, #4d9eff, #2266cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar .nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.navbar .nav-links a {
  color: var(--color-text-dim);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.navbar .nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition);
}

.navbar .nav-links a:hover::after,
.navbar .nav-links a.active::after {
  width: 60%;
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  background: rgba(77, 158, 255, 0.1);
  color: var(--color-primary);
}

/* --- 主容器 --- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px;
}

/* --- 英雄区 --- */
.hero {
  text-align: center;
  padding: 60px 20px 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(77,158,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: 2.8rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text-dim);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.hero-badge {
  display: inline-block;
  margin-top: 20px;
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(255,51,85,0.15);
  color: var(--color-danger);
  border: 1px solid rgba(255,51,85,0.3);
  position: relative;
  z-index: 1;
}

/* --- 标题渐变文字 --- */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), #2266cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

/* --- 卡片 --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(77,158,255,0.03), transparent 50%);
  pointer-events: none;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(77,158,255,0.06), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 0;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(77, 158, 255, 0.15);
  border-color: rgba(77, 158, 255, 0.35);
}

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

.card-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
  display: block;
  transition: transform var(--transition);
}

.card:hover .card-icon {
  transform: scale(1.15);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.card-grid a {
  text-decoration: none;
  color: inherit;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: #fff;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(77, 158, 255, 0.15);
}

.btn:hover::after {
  opacity: 1;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #2266cc);
  color: #000;
  border: none;
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(77, 158, 255, 0.3);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #cc0033);
  color: #fff;
  border: none;
}

.btn-danger:hover {
  box-shadow: 0 6px 24px rgba(255, 51, 85, 0.3);
}

.btn-warning {
  background: linear-gradient(135deg, var(--color-warning), #cc8800);
  color: #000;
  border: none;
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success), #00cc66);
  color: #000;
  border: none;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --- 表单 --- */
input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(77, 158, 255, 0.15);
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: var(--color-text-dim);
  font-size: 0.875rem;
}

/* --- 徽章 / 标签 --- */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-danger {
  background: rgba(255, 51, 85, 0.2);
  color: var(--color-danger);
}

.badge-success {
  background: rgba(0, 255, 136, 0.2);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(255, 170, 0, 0.2);
  color: var(--color-warning);
}

/* --- 提示框 --- */
.alert {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  margin: 16px 0;
  font-weight: 500;
  border-left: 4px solid;
}

.alert-info {
  background: rgba(0, 240, 255, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.alert-danger {
  background: rgba(255, 51, 85, 0.08);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.alert-success {
  background: rgba(0, 255, 136, 0.08);
  border-color: var(--color-success);
  color: var(--color-success);
}

/* --- 统计数据发光 --- */
.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  display: block;
  text-shadow: 0 0 20px currentColor;
  transition: transform var(--transition);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  display: block;
  margin-top: 2px;
}

.stat-item {
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  background: rgba(77,158,255,0.03);
  border: 1px solid var(--color-border);
  min-width: 120px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.stat-item:hover {
  border-color: rgba(77,158,255,0.35);
  background: rgba(77,158,255,0.08);
  transform: translateY(-2px);
}

/* --- 底部 --- */
.footer {
  text-align: center;
  padding: 32px 20px;
  color: var(--color-text-dim);
  font-size: 0.875rem;
  border-top: 1px solid var(--color-border);
  margin-top: 48px;
}

.footer a {
  color: var(--color-primary);
  text-decoration: none;
}

/* --- 响应式 --- */
@media (max-width: 640px) {
  .container {
    padding: 20px 16px;
  }

  .navbar {
    flex-direction: column;
    gap: 8px;
    padding: 10px 16px;
  }

  .navbar .nav-links {
    width: 100%;
    justify-content: center;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
}

/* --- 动画 --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
}

.scale-in {
  animation: scaleIn 0.4s ease forwards;
}

.fade-in {
  animation: fadeIn 0.4s ease forwards;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.pulse {
  animation: pulse 2s ease infinite;
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 8px var(--color-glow); }
  50% { box-shadow: 0 0 24px var(--color-glow); }
}

.glow {
  animation: glow 2s ease infinite;
}

/* --- 电话界面专用 --- */
.phone-frame {
  max-width: 380px;
  margin: 0 auto;
  background: #0d1117;
  border-radius: 32px;
  border: 2px solid var(--color-border);
  padding: 20px 16px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.call-status {
  text-align: center;
  padding: 8px;
  font-size: 0.8rem;
  color: var(--color-success);
  letter-spacing: 1px;
}

.call-timer {
  text-align: center;
  font-size: 2rem;
  font-weight: 300;
  font-variant-numeric: tabular-nums;
  color: var(--color-text-dim);
  margin: 8px 0;
}

.chat-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  margin: 8px 0;
  max-width: 85%;
  animation: fadeIn 0.3s ease;
}

.chat-bubble.scammer {
  background: rgba(255, 51, 85, 0.15);
  border: 1px solid rgba(255, 51, 85, 0.3);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-bubble.player {
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid rgba(0, 240, 255, 0.25);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  margin-left: auto;
}

.chat-area {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  max-height: 360px;
  overflow-y: auto;
}

/* --- 知识卡片 --- */
.knowledge-card {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(255, 51, 85, 0.05));
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 20px;
  margin: 16px 0;
}

.knowledge-card .tip {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-warning);
  margin-top: 8px;
}

/* --- 双人模式 --- */
.role-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
}

.role-tag.scammer {
  background: rgba(255, 51, 85, 0.2);
  color: var(--color-danger);
}

.role-tag.victim {
  background: rgba(0, 240, 255, 0.15);
  color: var(--color-primary);
}

/* --- 滚动条美化 --- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-dim);
}

/* --- 撒花粒子 --- */
.confetti-particle {
  position: fixed;
  top: -20px;
  border-radius: 2px;
  z-index: 999;
  animation: confettiFall ease-out forwards;
  pointer-events: none;
}

@keyframes confettiFall {
  0% { transform: translateY(0) rotate(0deg) scale(1); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg) scale(0.3); opacity: 0; }
}

/* --- 积分数字跳动 --- */
.score-pop {
  display: inline-block;
  animation: scorePop 0.4s ease;
}

@keyframes scorePop {
  0% { transform: scale(1); }
  40% { transform: scale(1.5); }
  100% { transform: scale(1); }
}

.score-flash {
  animation: scoreFlash 0.6s ease;
}

@keyframes scoreFlash {
  0%, 100% { color: var(--color-primary); }
  50% { color: var(--color-warning); }
}

/* --- 提示按钮闪烁 --- */
.hint-btn-pulse {
  animation: hintPulse 1.2s ease infinite;
}

@keyframes hintPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 170, 0, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(255, 170, 0, 0); }
}

/* --- 倒计时警告 --- */
.timer-warning {
  color: var(--color-danger) !important;
  animation: timerBlink 0.6s ease infinite;
}

@keyframes timerBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* --- 扫描线动画 (科技感) --- */
.scan-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #4d9eff, transparent);
  opacity: 0.3;
  animation: scanMove 3s linear infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes scanMove {
  0% { top: 0; opacity: 0.1; }
  50% { opacity: 0.4; }
  100% { top: 100%; opacity: 0.1; }
}

/* --- 故障文字 (glitch) --- */
.glitch-text {
  position: relative;
  display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.glitch-text::before {
  color: var(--color-primary);
  animation: glitchShift 2s infinite linear alternate-reverse;
  clip-path: inset(20% 0 60% 0);
}

.glitch-text::after {
  color: #2266cc;
  animation: glitchShift 3s infinite linear alternate;
  clip-path: inset(60% 0 20% 0);
}

@keyframes glitchShift {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 1px); }
  40% { transform: translate(2px, -1px); }
  60% { transform: translate(-1px, -2px); }
  80% { transform: translate(1px, 2px); }
  100% { transform: translate(0); }
}

/* --- 霓虹光晕标题 --- */
.hero-title {
  text-shadow:
    0 0 10px rgba(77, 158, 255, 0.3),
    0 0 30px rgba(77, 158, 255, 0.15),
    0 0 60px rgba(77, 158, 255, 0.1);
  animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
  0% { text-shadow: 0 0 10px rgba(77, 158, 255, 0.3), 0 0 30px rgba(77, 158, 255, 0.15); }
  100% { text-shadow: 0 0 20px rgba(77, 158, 255, 0.5), 0 0 50px rgba(77, 158, 255, 0.25), 0 0 80px rgba(77, 158, 255, 0.15); }
}

/* --- 打字机光标 (副标题) --- */
.hero-sub::after {
  content: '|';
  color: var(--color-primary);
  animation: cursorBlink 0.8s step-end infinite;
  margin-left: 2px;
}

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

/* --- 提示弹窗 --- */
.hint-popup {
  background: rgba(10, 14, 23, 0.95);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--color-warning);
  animation: fadeIn 0.3s ease;
}