@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

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

:root {
  --xmas-red: #d32f2f;
  --xmas-dark-red: #b71c1c;
  --xmas-green: #2e7d32;
  --xmas-dark-green: #1b5e20;
  --xmas-gold: #fbc02d;
  --bg-color: #e3f2fd;
}

body {
  font-family: 'ZCOOL KuaiLe', 'Roboto', sans-serif;
  background: var(--bg-color);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(211, 47, 47, 0.05) 0%, transparent 20%),
    radial-gradient(circle at 85% 85%, rgba(46, 125, 50, 0.05) 0%, transparent 20%),
    radial-gradient(circle at 50% 50%, #ffffff 0%, #e3f2fd 100%);
  color: #212121;
  min-height: 100vh;
  padding: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow-x: hidden;
}

/* --- 圣诞装饰元素 --- */
.xmas-decorations {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.deco {
  position: absolute;
  font-size: 48px;
  opacity: 0.85;
  filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.2));
  animation: float 6s ease-in-out infinite;
}

.deco-tree-left {
  top: 15%;
  left: 3%;
  font-size: 72px;
  opacity: 0.8;
  animation-delay: 0s;
}

.deco-tree-right {
  bottom: 10%;
  right: 3%;
  font-size: 64px;
  opacity: 0.8;
  animation-delay: 1s;
}

.deco-santa {
  top: 8%;
  right: 5%;
  font-size: 56px;
  animation-delay: 0.5s;
}

.deco-reindeer {
  top: 35%;
  left: 5%;
  font-size: 44px;
  animation-delay: 2s;
}

.deco-sleigh {
  top: 25%;
  right: 6%;
  font-size: 40px;
  animation-delay: 1.5s;
}

.deco-holly-left {
  bottom: 35%;
  left: 4%;
  font-size: 36px;
  animation-delay: 3s;
}

.deco-holly-right {
  bottom: 38%;
  left: 7%;
  font-size: 28px;
  animation-delay: 3.2s;
}

.deco-gift1 {
  bottom: 15%;
  left: 6%;
  font-size: 42px;
  animation-delay: 2.5s;
}

.deco-gift2 {
  top: 55%;
  right: 4%;
  font-size: 38px;
  animation-delay: 4s;
}

.deco-star {
  top: 5%;
  left: 8%;
  font-size: 32px;
  animation-delay: 1s;
}

.deco-bell {
  bottom: 25%;
  right: 5%;
  font-size: 36px;
  animation-delay: 2s;
}

.deco-candy {
  top: 45%;
  right: 7%;
  font-size: 32px;
  animation-delay: 3.5s;
}

.deco-snowman {
  bottom: 5%;
  left: 15%;
  font-size: 50px;
  animation-delay: 0.8s;
}

.deco-mistletoe {
  top: 60%;
  left: 3%;
  font-size: 28px;
  animation-delay: 4.5s;
}

.deco-chatgpt {
  bottom: 20%;
  right: 6%;
  animation-delay: 1.2s;
  opacity: 0.7;
}

/* --- Header Icons --- */
.header-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 6px;
}

.chatgpt-logo {
  filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.3));
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(3deg); }
}

/* 在小屏幕上隐藏装饰 */
@media (max-width: 768px) {
  .xmas-decorations { display: none; }
}

/* --- 飘雪动画 --- */
.snow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.snowflake {
  position: absolute;
  top: -20px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.4em;
  text-shadow: 0 0 8px rgba(100, 150, 200, 0.5), 0 0 3px rgba(255,255,255,0.8);
  animation: fall linear infinite;
}

.snow-left .snowflake,
.snow-right .snowflake {
  font-size: 1.6em;
  color: rgba(200, 220, 255, 0.95);
}

@keyframes fall {
  0% { 
    transform: translateY(-20px) rotate(0deg) translateX(0); 
    opacity: 1;
  }
  50% {
    transform: translateY(50vh) rotate(180deg) translateX(15px);
  }
  100% { 
    transform: translateY(105vh) rotate(360deg) translateX(-10px); 
    opacity: 0.6;
  }
}

/* --- 主容器 --- */
.container {
  width: 100%;
  max-width: 680px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(211, 47, 47, 0.15), 0 0 0 4px rgba(255, 255, 255, 0.8);
  overflow: hidden;
  position: relative;
  z-index: 10;
  border: 2px solid #ffcdd2;
  margin: 0;
}

.container::before {
  content: '🌿🍒';
  position: absolute;
  top: 8px;
  left: 8px;
  font-size: 28px;
  z-index: 20;
  transform: rotate(-15deg);
  filter: drop-shadow(2px 2px 2px rgba(0,0,0,0.2));
}

.container::after {
  content: '🎄';
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 28px;
  z-index: 20;
  transform: rotate(10deg);
  filter: drop-shadow(2px 2px 2px rgba(0,0,0,0.2));
}

/* --- 头部区域 --- */
header {
  background: linear-gradient(135deg, var(--xmas-red) 0%, var(--xmas-dark-red) 100%);
  padding: 20px 24px;
  text-align: center;
  color: white;
  position: relative;
  border-bottom: 4px solid var(--xmas-gold);
}

header::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  width: 100%;
  height: 24px;
  background: radial-gradient(circle, #ffffff 50%, transparent 55%) repeat-x;
  background-size: 24px 24px;
  z-index: 1;
}

h1 {
  font-family: 'ZCOOL KuaiLe', 'Mountains of Christmas', cursive;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 2px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
  font-family: 'ZCOOL KuaiLe', sans-serif;
  font-size: 14px;
  opacity: 0.95;
  font-weight: 400;
  letter-spacing: 0.5px;
}

/* --- 内容区域 --- */
.content {
  padding: 32px 24px 28px;
  background-image: radial-gradient(#d32f2f 1px, transparent 1px), radial-gradient(#2e7d32 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: 0 0, 20px 20px;
  background-color: #fff;
  min-height: 420px;
}

/* --- 步骤条 --- */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  padding: 10px 0;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  flex: 1;
}

.step-item:not(.active):not(.completed) {
  opacity: 0.5;
  filter: grayscale(1);
}

.step-circle {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #fafafa;
  border: 3px solid #eee;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: all 0.3s ease;
  z-index: 2;
  box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.step-item.active .step-circle {
  background: #fff;
  border-color: var(--xmas-red);
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(211, 47, 47, 0.4);
}

.step-item.completed .step-circle {
  background: #e8f5e9;
  border-color: var(--xmas-green);
}

.step-item span {
  font-size: 12px;
  font-weight: 600;
  color: #757575;
  font-family: 'ZCOOL KuaiLe', sans-serif;
}

.step-item.active span { color: var(--xmas-red); }
.step-item.completed span { color: var(--xmas-green); }

.step-line {
  flex: 1;
  height: 4px;
  background: #eeeeee;
  margin: 0 -10px;
  position: relative;
  top: -14px;
  z-index: 1;
  border-radius: 2px;
}

.step-line.completed {
  background: linear-gradient(to right, var(--xmas-green), var(--xmas-red));
}

/* --- 面板动画 --- */
.step-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}
.step-panel.active { display: block; }

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

/* --- 表单控件 --- */
.form-group { margin-bottom: 20px; }

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--xmas-dark-green);
  font-size: 14px;
  font-family: 'ZCOOL KuaiLe', sans-serif;
}

input, textarea {
  width: 100%;
  padding: 16px 20px;
  background: #ffffff;
  border: 2px solid #e0e0e0;
  border-radius: 16px;
  font-size: 15px;
  font-family: 'ZCOOL KuaiLe', sans-serif;
  color: #333;
  transition: all 0.3s;
}

input::placeholder, textarea::placeholder {
  font-family: 'ZCOOL KuaiLe', sans-serif;
  color: #aaa;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--xmas-red);
  box-shadow: 0 0 0 4px rgba(211, 47, 47, 0.1);
}

textarea { font-family: 'Roboto Mono', monospace; font-size: 14px; }

/* --- 按钮 --- */
.btn {
  display: block;
  width: 100%;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--xmas-green), var(--xmas-dark-green));
  color: white;
  border: none;
  border-radius: 60px;
  font-size: 17px;
  font-weight: 600;
  font-family: 'ZCOOL KuaiLe', sans-serif;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(46, 125, 50, 0.4);
}

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

.btn-secondary {
  background: transparent;
  color: #757575;
  box-shadow: none;
  border: 2px solid #e0e0e0;
}
.btn-secondary:hover {
  background: #f5f5f5;
  color: #424242;
  box-shadow: none;
}

.btn-success {
  background: linear-gradient(135deg, var(--xmas-red), var(--xmas-dark-red));
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
}
.btn-success:hover {
  box-shadow: 0 6px 16px rgba(211, 47, 47, 0.4);
}

.btn-group { display: flex; gap: 10px; margin-top: 12px; }

/* --- Token 帮助区域 --- */
.token-help {
  background: #f1f8e9;
  border: 1px dashed var(--xmas-green);
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 16px;
}
.token-steps { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--xmas-dark-green); font-family: 'ZCOOL KuaiLe', sans-serif; }
.token-steps a {
  color: var(--xmas-red);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dashed var(--xmas-red);
  padding: 2px 4px;
}

/* --- 结果和提示 --- */
.step-result { margin: 12px 0; font-size: 14px; border-radius: 8px; overflow: hidden; }
.alert { padding: 12px 16px; display: flex; align-items: center; gap: 10px; }
.alert-success { background: #e8f5e9; color: #2e7d32; }
.alert-error { background: #ffebee; color: #c62828; }

/* --- 确认信息卡片 --- */
.confirm-info {
  background: #fafafa;
  border-radius: 16px;
  margin-bottom: 18px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
}

.confirm-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid #eee;
}

.confirm-item:last-child { border-bottom: none; }

.confirm-label {
  font-size: 13px;
  color: #616161;
  display: flex;
  align-items: center;
  gap: 8px;
}

.confirm-label i { color: var(--xmas-green); }

.confirm-value {
  font-size: 13px;
  font-weight: 600;
  color: #212121;
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 12px;
  color: #90a4ae;
  font-size: 11px;
  background: #fafafa;
  border-top: 1px solid #eee;
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  .step-circle { width: 40px; height: 40px; font-size: 18px; }
  header { padding: 12px 14px; }
  .content { padding: 18px 14px; }
  h1 { font-size: 22px; }
}

/* --- Query Page Extras --- */
.query-nav a {
  color: var(--xmas-green);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.results-table-wrapper { overflow-x: auto; }
.results-table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 14px; }
.results-table th { background: #f5f5f5; padding: 12px; text-align: center; color: #616161; font-family: 'ZCOOL KuaiLe', sans-serif; }
.results-table th:nth-child(1) { width: 30%; }
.results-table th:nth-child(2) { width: 20%; min-width: 100px; }
.results-table th:nth-child(3) { width: 30%; }
.results-table th:nth-child(4) { width: 20%; }
.results-table td { border-bottom: 1px solid #eee; padding: 12px; color: #424242; text-align: center; }

.status-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  min-width: 70px;
  text-align: center;
}
.status-valid { background: #e8f5e9; color: #2e7d32; }
.status-used { background: #f5f5f5; color: #757575; }
.status-disabled { background: #ffebee; color: #c62828; }
.status-expired { background: #fff3e0; color: #e65100; }
.status-notfound { background: #fafafa; color: #9e9e9e; }

/* Stats & Tabs */
.results-stats { display: flex; gap: 12px; margin-bottom: 20px; }
.stat-item { flex: 1; background: #fafafa; padding: 16px 18px; border-radius: 16px; text-align: center; border: 1px solid #eee; min-width: 100px; }
.stat-label { font-size: 13px; color: #757575; font-family: 'ZCOOL KuaiLe', sans-serif; }
.stat-value { display: block; font-size: 24px; font-weight: 700; margin-top: 6px; }

.results-tabs { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.tab-btn {
  padding: 10px 22px;
  border-radius: 30px;
  border: 1px solid #e0e0e0;
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  font-family: 'ZCOOL KuaiLe', sans-serif;
  transition: all 0.2s;
}
.tab-btn.active {
  background: var(--xmas-red);
  color: white;
  border-color: var(--xmas-red);
}

/* --- 历史记录表格 --- */
.history-header {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr 1fr;
  gap: 8px;
  padding: 10px 12px;
  background: #f5f5f5;
  border-radius: 8px 8px 0 0;
  font-size: 12px;
  font-weight: 600;
  color: #616161;
  font-family: 'ZCOOL KuaiLe', sans-serif;
}

.history-header-item {
  text-align: center;
}

.history-item {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr 1fr;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid #eee;
  font-size: 12px;
  color: #424242;
}

.history-item:last-child {
  border-bottom: none;
}

.history-value {
  text-align: center;
  word-break: break-all;
}

.history-result {
  text-align: center;
  color: var(--xmas-green);
  font-weight: 500;
}

.history-empty {
  display: block;
  text-align: center;
  padding: 30px;
  color: #999;
}

.history-empty .history-value {
  font-size: 14px;
}

/* --- 点击雪花效果 --- */
.click-snowflake {
  position: fixed;
  pointer-events: none;
  font-size: 20px;
  z-index: 99999;
  animation: clickSnowflake 0.8s ease-out forwards;
  text-shadow: 0 0 5px rgba(100, 150, 255, 0.6);
}

@keyframes clickSnowflake {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx), var(--ty)) scale(0.3) rotate(180deg);
  }
}