body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: #fff;
}

/* #container {
  position: relative;
  width: 1920px;
  height: 1080px;
  margin: auto;
} */

#container {
  position: relative;
  width: 1920px;
  margin: auto;
}


#chart-area {
  position: relative;
  width: 1920px;
  height: 1080px;
}

/* 年份：最大、最淡 */
#year {
  position: absolute;
  /* right: 450px;
  bottom: 880px; */
  left: 1300px;
  top: 580px;
  font-size: 140px;
  font-weight: 700;
  color: rgba(0, 0, 0, 0.12);
  line-height: 1;
  pointer-events: none;
 }



/* 数值 */
.stat-value {
  font-size: 96px;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.25);
}


/* #header {
  position: absolute;
  top: 24px;
  left: 0;
  width: 100%;
  text-align: center;
} */

#header {
  width: 1920px;
  margin: 24px auto 10px;
  text-align: center;
  position: relative;   /* 🔥 不要 absolute */
  z-index: 2;
}


#header h1 {
  margin: 0;
  font-size: 44px;
}

#header h2 {
  margin-top: 8px;
  font-size: 26px;
  color: #666;
}

/* #year {
  position: absolute;
  right: 40px;
  bottom: 120px;
  font-size: 160px;
  color: rgba(0,0,0,0.15);
} */

/* #legend {
  position: absolute;
  left: 60px;
  bottom: 86px;
  font-size: 18px;
} */

#legend {
  position: absolute;
  left: 240px;
  bottom: 300px;

  display: flex;
  flex-wrap: wrap;
  align-items: baseline;

  gap: 14px 18px;
  font-size: 20px;
  color: #555;

  max-width: 1200px;
}

#legend .legend-title {
  margin-right: 20px;
  font-size: 22px;
  color: #444;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

#legend .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  font-size: 20px;
}

#legend .legend-item span:first-child {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}



.asia { background:#9b59b6 }
.europe { background:#ff6b9a }
.north-america { background:#5dade2 }
.south-america { background:#48c9b0 }
.oceania { background:#4c6ef5 }
.africa { background:#8e44ad }

/* #footer {
  position: absolute;
  bottom: 30px;
  left: 60px;
  font-size: 16px;
  color: #777;
} */

#footer {
  position: absolute;
  left: 240px;           /* 🔥 与国家名左端对齐 */
  bottom: 270px;
  font-size: 21px;       /* 明显小于 legend */
  color: #444;
}