/* =========================================================
   生日祝福页面 · 公共样式
   页面背景：纯白
   照片外框：蓝 · 绿 · 橙 渐变（保持不变）
   ========================================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Segoe UI", sans-serif;
  background: #ffffff;
  color: #1c4a5e;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card {
  width: min(92vw, 680px);
  max-height: 94vh;
  overflow-y: auto;
  position: relative;
  z-index: 1;
  background: #ffffff;
  border: 1px solid #eef2f5;
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(28, 74, 94, .10);
  padding: 26px 26px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* 标题类文字：正楷字，字心是白色，颜色只在字的边缘（橙色描边） */
.title,
.headline,
.wish {
  font-family: "KaiTi", "楷体", "STKaiti", "华文楷体", "Kaiti SC", "Microsoft YaHei", "微软雅黑", serif;
  font-weight: 700;
  color: #ffffff;
  -webkit-text-stroke: 1.9px #d9660f;
  paint-order: stroke fill;
}

/* 第一张图片上方的大字幕 */
.headline {
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: 4px;
  text-align: center;
  line-height: 1.5;
  -webkit-text-stroke: 2.8px #d9660f;
}

/* 最后一页图片上方的标题 */
.title {
  font-size: clamp(20px, 2.6vw, 24px);
  letter-spacing: 2px;
  text-align: center;
}

/* 照片外框：蓝 → 绿 → 橙 渐变描边 */
.photo-frame {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 12px 8px;
  border: 3px solid transparent;
  border-radius: 18px;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(135deg, #2f7fd1, #2fae7a, #f08a2e) border-box;
}

#photo {
  max-width: 100%;
  max-height: 44vh;
  border-radius: 10px;
  display: block;
}

/* 外框最下面的提示小字 */
.tap-hint {
  font-size: 11px;
  letter-spacing: 3px;
  color: #1c4a5e;
  opacity: .32;
}

.wish {
  width: 100%;
  font-size: clamp(17px, 2.3vw, 21px);
  line-height: 2.2;
  letter-spacing: 1px;
  text-align: center;
  background: linear-gradient(135deg, #fffaf3 0%, #fff6ec 100%);
  border: 1px solid #f6e3cf;
  border-radius: 16px;
  padding: 18px 20px;
}

.hint { font-size: 12px; color: #8aa2ad; text-align: center; }

/* 4 张表情包：散在页面背景上，分别朝四个方向倾斜 */
.emoji-scatter {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.emoji-scatter img {
  position: absolute;
  width: clamp(88px, 11vw, 165px);
  height: auto;
  padding: 6px;
  border: 2px solid transparent;
  border-radius: 14px;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(135deg, #2f7fd1, #2fae7a, #f08a2e) border-box;
  box-shadow: 0 10px 26px rgba(28, 74, 94, .14);
}
/* 左上 */
.emoji-scatter img:nth-child(1) { left: 5%;  top: 11%;    transform: rotate(-13deg); }
/* 右上 */
.emoji-scatter img:nth-child(2) { right: 5%; top: 8%;     transform: rotate(11deg); }
/* 左下 */
.emoji-scatter img:nth-child(3) { left: 7%;  bottom: 11%; transform: rotate(9deg); }
/* 右下 */
.emoji-scatter img:nth-child(4) { right: 6%; bottom: 8%;  transform: rotate(-15deg); }

/* 窗口比较窄时把它们缩小一点，避免压住中间的卡片 */
@media (max-width: 1000px) {
  .emoji-scatter img { width: clamp(64px, 13vw, 110px); }
}

.hidden { display: none !important; }

.pop { animation: pop .5s ease; }
@keyframes pop {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

/* 结尾：从天上飘落的生日装饰 */
.confetti {
  position: fixed;
  top: -60px;
  z-index: 5;
  pointer-events: none;
  animation-name: fall;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  will-change: transform;
}
@keyframes fall {
  0%   { transform: translate(0, 0) rotate(0deg); opacity: 0; }
  8%   { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translate(var(--drift, 0px), 112vh) rotate(var(--spin, 360deg)); opacity: .85; }
}