/* ============================================
   二次元风格 UI - 统一淡紫色调
   ============================================ */

/* 引入二次元风格字体 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  /* 主色调 - 统一淡紫/薰衣草色系 */
  --primary: #8b7ec8;
  --primary-light: #a99ed9;
  --primary-lighter: #d4cef0;
  --primary-dark: #6b5fa8;
  --primary-glow: rgba(139, 126, 200, 0.3);
  
  /* 背景色 */
  --bg: #f8f7fc;
  --bg-gradient: linear-gradient(135deg, #f8f7fc 0%, #ede9f7 100%);
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-bg-solid: #ffffff;
  
  /* 文字色 */
  --text: #4a4458;
  --text-light: #7a7489;
  --text-lighter: #9d97ab;
  
  /* 状态色 */
  --success: #7ec8a8;
  --success-bg: rgba(126, 200, 168, 0.15);
  --error: #c88b8b;
  --error-bg: rgba(200, 139, 139, 0.15);
  --warning: #c8b87e;
  --warning-bg: rgba(200, 184, 126, 0.15);
  
  /* 边框和阴影 */
  --border: rgba(139, 126, 200, 0.2);
  --border-light: rgba(139, 126, 200, 0.1);
  --shadow-sm: 0 2px 8px rgba(139, 126, 200, 0.1);
  --shadow: 0 4px 20px rgba(139, 126, 200, 0.15);
  --shadow-lg: 0 8px 32px rgba(139, 126, 200, 0.2);
  --shadow-glow: 0 0 20px rgba(139, 126, 200, 0.3);
  
  /* 圆角 */
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  /* 动画 */
  --transition-fast: 0.15s ease;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-gradient);
  min-height: 100vh;
  color: var(--text);
  padding-top: 56px;
  padding-bottom: 20px;
  transition: padding-top var(--transition);
  position: relative;
  overflow-x: hidden;
}

/* 背景装饰 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(139, 126, 200, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 126, 200, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(139, 126, 200, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

body.announcement-hidden {
  padding-top: 20px;
}

/* ============================================
   公告栏
   ============================================ */
.announcement-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--card-bg-solid);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  animation: slideDown 0.5s var(--bounce);
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.announcement-icon {
  font-size: 1rem;
  margin-right: 8px;
  animation: bounce 2s infinite;
}

.announcement-text {
  flex: 1;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text);
}

.announcement-title {
  font-weight: 600;
  color: var(--primary);
  margin-right: 6px;
}

.announcement-close {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.2rem;
  cursor: pointer;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.announcement-close:hover {
  background: var(--primary-lighter);
  color: var(--primary-dark);
  transform: rotate(90deg);
}

/* ============================================
   页面容器
   ============================================ */
.page-container {
  max-width: 900px;
  width: 100%;
  padding: 20px;
  margin: 0 auto;
}

/* ============================================
   项目选择界面
   ============================================ */
.project-selection {
  text-align: center;
  animation: fadeInUp 0.6s var(--transition);
}

.selection-header {
  margin-bottom: 2rem;
  padding-top: 1rem;
}

.selection-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.5px;
}

.selection-header h1::before {
  content: '✨ ';
}

.selection-header h1::after {
  content: ' ✨';
}

.selection-header p {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 400;
}

/* 项目网格 */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

/* 项目卡片 */
.project-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card:active {
  transform: translateY(-3px) scale(0.98);
}

.project-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
  transition: transform var(--transition);
}

.project-card:hover .project-icon {
  transform: scale(1.1);
  animation: wiggle 0.5s ease;
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.project-card p {
  color: var(--text-light);
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}

.project-features {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  flex-wrap: wrap;
}

.feature-tag {
  background: var(--primary-lighter);
  color: var(--primary-dark);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 500;
}

.selection-footer {
  color: var(--text-lighter);
  font-size: 0.8rem;
}

/* ============================================
   扫码界面
   ============================================ */
.scanning-interface {
  display: flex;
  justify-content: center;
  animation: fadeInUp 0.6s var(--transition);
}

.scanning-interface.hidden {
  display: none;
}

/* 扫码布局容器 - 左右并排 */
.scan-layout {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  width: 100%;
  max-width: 900px;
  min-height: 500px;
  position: relative;
}

/* 扫码卡片 */
.scan-card {
  width: 100%;
  max-width: 340px;
  min-width: 300px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  z-index: 10;
}

/* 扫码卡片缩小并移到左下角 */
.scan-card.slide-left {
  transform: scale(0.95) translateX(-10%) translateY(10%);
  box-shadow: var(--shadow-sm);
}

/* Token结果卡片 */
.token-card {
  width: 100%;
  max-width: 480px;
  min-width: 400px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  opacity: 0;
  transform: translateX(50px) scale(0.95);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.token-card.hidden {
  display: none;
}

.token-card.show {
  display: block;
  opacity: 1;
  transform: translateX(0) scale(1);
}

.token-card-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(135deg, rgba(126, 200, 168, 0.1) 0%, rgba(139, 126, 200, 0.05) 100%);
}

.token-card-header h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--success);
}

.token-card-body {
  padding: 1.25rem 1.5rem;
}

/* Token卡片内的结果样式 */
.token-card .token-result {
  padding: 0;
  border: none;
  animation: none;
}

.token-card .token-result h3 {
  display: none;
}

.token-card .token-result p {
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
}

.token-card .token-result p strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.85rem;
}

.token-card .button-container {
  padding: 1.25rem 0 0 0;
  border-top: 1px solid var(--border-light);
  margin-top: 1rem;
  grid-template-columns: 1fr 1fr;
}

/* 重新获取按钮 */
.retry-btn {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-top: 1rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-light);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: inherit;
}

.retry-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(139, 126, 200, 0.05);
}

.retry-btn:active {
  transform: scale(0.98);
}

.scan-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(139, 126, 200, 0.03);
}

.back-button {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.7rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--text-light);
}

.back-button:hover {
  background: var(--primary-lighter);
  border-color: var(--primary-light);
  color: var(--primary-dark);
}

.back-button:active {
  transform: scale(0.95);
}

.back-button svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.back-button:hover svg {
  transform: translateX(-2px);
}

.scan-title h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.scan-title p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.75rem;
}

.scan-card-body {
  padding: 1.5rem;
}

/* 二维码区域 */
.qr-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.qr-container {
  padding: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 200px;
  min-width: 200px;
  background: linear-gradient(135deg, #faf9fd 0%, #f5f3fa 100%);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.qr-container:has(img) {
  border-style: solid;
  border-color: var(--primary-lighter);
}

#qrCode {
  display: flex;
  justify-content: center;
  align-items: center;
}

#qrCode img {
  display: block;
  max-width: 180px;
  height: auto;
  border-radius: var(--radius-sm);
  animation: fadeIn 0.5s ease;
}

/* 状态提示 */
.status {
  padding: 0.5rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  width: 100%;
  max-width: 240px;
  font-weight: 500;
  transition: all var(--transition);
}

.status.loading {
  color: var(--primary);
  background: rgba(139, 126, 200, 0.1);
  animation: pulse 2s infinite;
}

.status.error {
  color: var(--error);
  background: var(--error-bg);
  animation: shake 0.5s ease;
}

.status.success {
  color: var(--success);
  background: var(--success-bg);
  animation: successPop 0.5s var(--bounce);
}

/* 加载动画 */
.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--primary-lighter);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
  position: absolute;
}

/* 刷新按钮 */
.refresh-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-weight: 500;
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
}

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

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

.refresh-btn svg {
  transition: transform var(--transition);
}

.refresh-btn:hover svg {
  transform: rotate(180deg);
}

.refresh-btn.hidden {
  display: none !important;
}

/* ============================================
   Token结果区域
   ============================================ */
.token-result {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-light);
  animation: slideUp 0.4s var(--transition);
}

.token-result h3 {
  margin: 0 0 0.75rem 0;
  font-size: 0.9rem;
  color: var(--primary-dark);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.token-result h3::before {
  content: '🎉';
  font-size: 1rem;
}

.token-result p {
  margin-bottom: 0.5rem;
  line-height: 1.5;
  word-break: break-all;
  background: linear-gradient(135deg, #faf9fd 0%, #f5f3fa 100%);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  font-size: 0.75rem;
  color: var(--text);
}

.token-result p strong {
  color: var(--primary-dark);
  font-weight: 600;
}

/* 按钮容器 */
.button-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid var(--border-light);
}

.copy-btn {
  padding: 0.65rem 0.75rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.copy-btn:active {
  transform: scale(0.95);
}

.primary-btn {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

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

.secondary-btn {
  background: var(--card-bg-solid);
  color: var(--text);
  border: 1px solid var(--border);
}

.secondary-btn:hover {
  background: var(--primary-lighter);
  border-color: var(--primary-light);
  color: var(--primary-dark);
}

/* ============================================
   验证码登录表单
   ============================================ */
.login-form {
  width: 100%;
  animation: fadeIn 0.4s ease;
}

.login-form .form-header {
  text-align: center;
  margin-bottom: 1.25rem;
}

.login-form .form-header h3 {
  color: var(--text);
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
  font-weight: 600;
}

.login-form .form-header p {
  color: var(--text-light);
  margin: 0;
  font-size: 0.75rem;
}

.login-form .form-group {
  margin-bottom: 1rem;
}

.login-form .form-group label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-weight: 500;
  font-size: 0.8rem;
}

.form-input {
  width: 100%;
  padding: 0.65rem 0.875rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: all var(--transition);
  background: var(--card-bg-solid);
  color: var(--text);
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input::placeholder {
  color: var(--text-lighter);
}

.code-input-group {
  display: flex;
  gap: 0.5rem;
}

.code-input-group .form-input {
  flex: 1;
}

.send-code-btn {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  border: none;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  min-width: 95px;
  font-family: inherit;
}

.send-code-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.send-code-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

.send-code-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--text-lighter);
}

.login-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 0.5rem;
  font-family: inherit;
}

.login-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.login-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================
   注意事项
   ============================================ */
.token-failure-notice {
  padding: 1rem;
  margin: 1rem auto;
  max-width: 340px;
  width: 100%;
  background: var(--warning-bg);
  border: 1px solid rgba(200, 184, 126, 0.3);
  border-radius: var(--radius);
  animation: fadeIn 0.4s ease;
}

.notice-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #8a7a4a;
  font-size: 0.85rem;
}

.notice-content {
  color: #8a7a4a;
  line-height: 1.5;
}

.notice-content ol {
  margin: 0;
  padding-left: 1.1rem;
}

.notice-content li {
  margin-bottom: 0.3rem;
  font-size: 0.8rem;
}

/* ============================================
   提示框
   ============================================ */
.copy-tooltip {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: var(--text);
  color: white;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
  transition: all var(--transition);
  box-shadow: var(--shadow-lg);
}

.copy-tooltip.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ============================================
   控制面板
   ============================================ */
.announcement-control-panel {
  position: fixed;
  bottom: 80px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 950;
}

.control-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--card-bg-solid);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn:hover {
  background: var(--primary-lighter);
  border-color: var(--primary-light);
  transform: scale(1.1);
}

.control-btn:active {
  transform: scale(0.95);
}

body:not(.announcement-hidden) .announcement-control-panel {
  opacity: 0.4;
}

body:not(.announcement-hidden) .announcement-control-panel:hover {
  opacity: 1;
}

/* ============================================
   动画关键帧
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

@keyframes wiggle {
  0%, 100% { transform: scale(1.1) rotate(0deg); }
  25% { transform: scale(1.1) rotate(-5deg); }
  75% { transform: scale(1.1) rotate(5deg); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

@keyframes successPop {
  0% { transform: scale(0.8); opacity: 0; }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* ============================================
   隐藏类
   ============================================ */
.hidden {
  display: none !important;
}

/* ============================================
   滚动条
   ============================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

::selection {
  background: var(--primary-light);
  color: white;
}

/* ============================================
   焦点样式
   ============================================ */
.copy-btn:focus,
.refresh-btn:focus,
.back-button:focus,
.control-btn:focus,
.form-input:focus,
.send-code-btn:focus,
.login-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  body {
    padding-top: 50px;
  }

  body.announcement-hidden {
    padding-top: 16px;
  }

  .announcement-content {
    padding: 10px 15px;
  }

  .announcement-text {
    font-size: 0.75rem;
  }

  .page-container {
    padding: 12px;
  }

  .selection-header h1 {
    font-size: 1.4rem;
  }

  .selection-header {
    margin-bottom: 1.5rem;
  }

  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .project-card {
    padding: 1.25rem 1rem;
  }

  .project-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }

  .project-card h3 {
    font-size: 0.95rem;
  }

  .project-card p {
    font-size: 0.7rem;
    margin-bottom: 0.5rem;
  }

  .feature-tag {
    font-size: 0.6rem;
    padding: 0.15rem 0.5rem;
  }

  /* 移动端：左右布局改为上下布局 */
  .scan-layout {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    min-height: auto;
  }

  .scan-card {
    max-width: 100%;
    min-width: auto;
    border-radius: var(--radius);
  }

  .scan-card.slide-left {
    transform: scale(0.85) translateY(-10px);
  }

  .token-card {
    max-width: 100%;
    min-width: auto;
  }

  .token-card.show {
    transform: translateX(0) scale(1);
  }

  .scan-card-header {
    padding: 0.875rem 1rem;
  }

  .scan-title h2 {
    font-size: 1rem;
  }

  .scan-card-body {
    padding: 1.25rem;
  }

  .qr-container {
    min-height: 180px;
    min-width: 180px;
  }

  #qrCode img {
    max-width: 160px;
  }

  .button-container {
    grid-template-columns: 1fr;
    padding: 0.875rem 1rem 1rem;
  }

  .token-card-body {
    max-height: 300px;
  }

  .announcement-control-panel {
    bottom: 70px;
    right: 12px;
  }

  .control-btn {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }

  .code-input-group {
    flex-direction: column;
  }

  .send-code-btn {
    width: 100%;
    min-width: auto;
  }
}

@media (max-width: 400px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   兼容旧类名
   ============================================ */
.glass-effect {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
}

.qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}