/**
 * 博物馆数字展览 - 雪花形态探索
 * 编译后的CSS文件（从main.scss编译）
 * 如需修改样式，请编辑main.scss并使用sass编译器重新生成
 */

/* ============================================
   CSS 自定义属性（CSS Variables）
   方便统一管理和更新颜色
   ============================================ */

:root {
  /* 主色调 - 冰雪主题 */
  --color-primary: #1976D2;
  --color-primary-dark: #1565C0;
  --color-primary-light: #64B5F6;
  --color-primary-lighter: #BBDEFB;
  --color-primary-lightest: #E3F2FD;
  
  /* 中性色 */
  --color-neutral-dark: #212121;
  --color-neutral-medium: #616161;
  --color-neutral-light: #BDBDBD;
  --color-neutral-lighter: #F5F5F5;
  
  /* 功能色 */
  --color-success: #4CAF50;
  --color-warning: #FF9800;
  --color-error: #F44336;
  
  /* 背景色 */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAFAFA;
  --color-bg-accent: #E3F2FD;
  
  /* 文字颜色 */
  --color-text-primary: #212121;
  --color-text-secondary: #616161;
  --color-text-inverse: #FFFFFF;
}

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

body {
  font-family: 'Kalam', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: #212121;
  background: url('https://i.imgur.com/NYJJ8PJ.jpeg') center center / cover no-repeat, linear-gradient(135deg, #E3F2FD 0%, #FFFFFF 40%, #F5F5F5 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

.exhibit-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

@media (max-width: 767px) {
  .exhibit-container {
    padding: 1rem;
  }
}

.language-switcher {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  background: #FAFAFA;
  border-radius: 9999px;
  padding: 4px;
  z-index: 300;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
}

@media (max-width: 767px) {
  .language-switcher {
    top: 0.5rem;
    right: 0.5rem;
  }
}

.language-switcher .lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 1rem;
  background: transparent;
  color: #616161;
  font-size: 0.875rem;
  border: none;
  border-radius: 9999px;
  font-family: 'Kalam', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all 300ms ease-in-out;
  position: relative;
  z-index: 1;
  min-width: 70px;
}

.language-switcher .lang-btn.active {
  background: #1976D2;
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.language-switcher .lang-btn:not(.active):hover {
  color: #212121;
}

.exhibit-header {
  margin-top: 3rem;
  text-align: center;
  margin-bottom: 3rem;
}

.exhibit-header h1 {
  font-family: 'Fredoka One', 'Kalam', 'PingFang SC', 'Microsoft YaHei', cursive;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-lightest);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

@media (max-width: 767px) {
  .exhibit-header h1 {
    font-size: 1.5rem;
    color: var(--color-primary-lightest);
  }
}

.exhibit-header .subtitle {
  font-size: 1.125rem;
  color: #616161;
  background: rgba(187, 222, 251, 0.7);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  display: inline-block;
}

@media (max-width: 767px) {
  .exhibit-header .subtitle {
    font-size: 1rem;
    padding: 0.25rem 1rem;
  }
}

.simulation-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 2rem;
}

.simulation-layout .left-panel {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (max-width: 767px) {
  .simulation-layout .left-panel {
    display: contents;
  }
  
  .simulation-layout .simulation-controls {
    order: 1;
  }
  
  .simulation-layout .snowflake-card {
    order: 2;
  }
  
  .simulation-layout .discoveries-panel {
    order: 3;
  }
}

@media (min-width: 1024px) {
  .simulation-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  
  .simulation-layout .left-panel {
    flex: 0 0 40%;
    order: 0;
  }
  
  .simulation-layout .left-panel .simulation-controls {
    order: 0;
    margin-bottom: 0;
  }
  
  .simulation-layout .left-panel .discoveries-panel {
    order: 0;
    margin-bottom: 0;
  }
  
  .simulation-layout .snowflake-card {
    flex: 0 0 60%;
    margin-bottom: 0;
    order: 0;
  }
}

.simulation-controls {
  background: #FFFFFF;
  border-radius: 24px;
  border: 3px solid #424242;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
  padding: 1.5rem;
  margin-bottom: 2rem;
  position: relative;
}

.simulation-controls::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  pointer-events: none;
}

.simulation-controls .control-group {
  margin-bottom: 1.5rem;
}

.simulation-controls .control-group:last-child {
  margin-bottom: 0;
}

.simulation-controls .control-group .control-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.simulation-controls .control-group .control-label-row label {
  margin-bottom: 0;
}

.simulation-controls .control-group .temperature-unit-toggle {
  display: flex;
  gap: 0.25rem;
  background: #BBDEFB;
  border-radius: 9999px;
  padding: 2px;
}

.simulation-controls .control-group .temperature-unit-toggle .unit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 1rem;
  background: transparent;
  color: #616161;
  font-size: 0.75rem;
  border: none;
  border-radius: 9999px;
  font-family: 'Kalam', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all 300ms ease-in-out;
  min-width: 70px;
}

.simulation-controls .control-group .temperature-unit-toggle .unit-btn.active {
  background: #1976D2;
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.simulation-controls .control-group .temperature-unit-toggle .unit-btn:not(.active):hover {
  color: #212121;
}

.simulation-controls .control-group label {
  display: block;
  font-weight: 500;
  color: #212121;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.simulation-controls .control-group .slider-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.simulation-controls .control-group .slider-container .slider {
  flex: 1;
  height: 10px;
  border-radius: 9999px;
  background: #F5F5F5;
  border: 2px solid #757575;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.simulation-controls .control-group .slider-container .slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #1976D2;
  border: none;
  cursor: pointer;
  transition: all 300ms ease-in-out;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.simulation-controls .control-group .slider-container .slider::-webkit-slider-thumb:hover {
  background: #1565C0;
  transform: scale(1.15);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
}

.simulation-controls .control-group .slider-container .slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #1976D2;
  border: none;
  cursor: pointer;
  transition: all 300ms ease-in-out;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.simulation-controls .control-group .slider-container .slider::-moz-range-thumb:hover {
  background: #1565C0;
  transform: scale(1.15);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
}

.simulation-controls .control-group .slider-container .slider-value {
  min-width: 80px;
  text-align: right;
  font-weight: 600;
  color: #1976D2;
  font-size: 1rem;
}

.snowflake-card {
  background: #FFFFFF;
  border-radius: 24px;
  border: 3px solid #424242;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
  padding: 0;
  margin-bottom: 2rem;
  overflow: hidden;
  position: relative;
}

.snowflake-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  pointer-events: none;
  z-index: 1;
}

.snowflake-display {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E3F2FD 0%, #FFFFFF 100%);
  min-height: 450px;
  padding: 1.5rem;
}

.snowflake-display #snowflake-svg {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1));
}

@media (max-width: 767px) {
  .snowflake-display {
    min-height: 300px;
  }
  .snowflake-display #snowflake-svg {
    width: 100%;
    height: 300px;
  }
}

.shape-info {
  padding: 1.5rem;
  border-top: 3px solid #424242;
}

.shape-info h3 {
  font-family: 'Fredoka One', 'Kalam', 'PingFang SC', 'Microsoft YaHei', cursive;
  font-size: 1.25rem;
  font-weight: 600;
  color: #1976D2;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.shape-info p {
  color: #616161;
  line-height: 1.8;
  font-size: 1rem;
}

.discoveries-panel {
  background: #FFFFFF;
  border-radius: 24px;
  border: 3px solid #424242;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.12), 6px 6px 0 rgba(0, 0, 0, 0.08);
  padding: 1.5rem;
  position: relative;
}

.discoveries-panel::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  pointer-events: none;
}

.discoveries-panel .discoveries-header {
  margin-bottom: 1rem;
}

.discoveries-panel .discoveries-header h4 {
  font-family: 'Fredoka One', 'Kalam', 'PingFang SC', 'Microsoft YaHei', cursive;
  font-size: 1.125rem;
  font-weight: 600;
  color: #212121;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.discoveries-panel .discovery-progress {
  margin-top: 0.5rem;
}

.discoveries-panel .discovery-progress .progress-text {
  display: block;
  font-size: 0.875rem;
  color: #616161;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.discoveries-panel .discovery-progress .progress-bar {
  width: 100%;
  height: 12px;
  background: #F5F5F5;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.discoveries-panel .discovery-progress .progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #64B5F6 0%, #1976D2 100%);
  border-radius: 9999px;
  transition: width 300ms ease-in-out;
  box-shadow: 0 2px 4px rgba(25, 118, 210, 0.3);
}

.discoveries-panel .discoveries-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 767px) {
  .discoveries-panel .discoveries-list {
    grid-template-columns: 1fr;
  }
}

.discoveries-panel .discovery-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
  background: #E3F2FD;
  border-radius: 16px;
  transition: all 300ms ease-in-out;
}

.discoveries-panel .discovery-item:hover {
  background: #BBDEFB;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

.discoveries-panel .discovery-item .discovery-icon {
  width: 40px;
  height: 40px;
  border-radius: 16px;
  border: 1.5px solid #1976D2;
}

.discoveries-panel .discovery-item .discovery-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.discoveries-panel .discovery-item .discovery-info strong {
  font-weight: 600;
  color: #212121;
  font-size: 1rem;
}

.discoveries-panel .discovery-item .discovery-info .discovery-name-en,
.discoveries-panel .discovery-item .discovery-info .discovery-name-alt {
  font-size: 0.875rem;
  color: #616161;
  font-style: italic;
}

.discoveries-panel .discoveries-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 2px solid rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: center;
}

.discoveries-panel .start-over-btn {
  padding: 0.5rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: 3px solid var(--color-primary);
  border-radius: 16px;
  font-family: "Kalam", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 300ms ease-in-out;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.discoveries-panel .start-over-btn:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.15), 6px 6px 0 rgba(0, 0, 0, 0.1);
}

.discoveries-panel .start-over-btn:active {
  transform: translateY(0);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1), 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.discovery-notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: #4CAF50;
  color: #FFFFFF;
  padding: 1rem 1.5rem;
  border-radius: 24px;
  border: 3px solid #2E7D32;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.15), 8px 8px 0 rgba(0, 0, 0, 0.1);
  font-weight: 500;
  z-index: 500;
  animation: slideInRight 300ms ease-in-out;
}

@media (max-width: 767px) {
  .discovery-notification {
    top: 1rem;
    right: 1rem;
    left: 1rem;
  }
}

.discovery-notification.fade-out {
  animation: fadeOut 300ms ease-in-out forwards;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

@media (max-width: 767px) {
  .exhibit-container .simulation-layout,
  .exhibit-container .discoveries-panel {
    margin-bottom: 1.5rem;
  }
}