/* ============================
   溥溥 & 龙龙 · 婚礼请柬样式
   奶油白 + 暖棕 + 水豚巴拉
   ============================ */

:root {
  --cream: #FFF8F0;
  --cream-deep: #FFF3E6;
  --warm-brown: #8B6544;
  --warm-brown-deep: #6B4A2E;
  --light-apricot: #FFE4C4;
  --soft-green: #7EC8B7;
  --blush-pink: #FFB5B5;
  --grass-green: #A8D5A2;
  --soft-gold: #E8B84B;
  --card-bg: #FFFAF5;
  --shadow-soft: 0 8px 32px rgba(139, 101, 68, 0.12);
  --shadow-card: 0 4px 20px rgba(139, 101, 68, 0.1);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--cream);
  color: var(--warm-brown);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

.app-shell {
  max-width: 520px;
  margin: 0 auto;
  min-height: 100dvh;
  background: linear-gradient(180deg, var(--cream) 0%, #FFF5EB 50%, var(--cream) 100%);
  position: relative;
  box-shadow: 0 0 60px rgba(139, 101, 68, 0.08);
}

section { padding: 72px 20px; position: relative; }

/* ===== 花瓣氛围 ===== */
.petals { position: fixed; inset: 0; pointer-events: none; z-index: 3; overflow: hidden; }
.petal {
  position: absolute;
  top: -20px;
  width: var(--s, 12px);
  height: var(--s, 12px);
  background: radial-gradient(circle at 30% 30%, var(--c1, #FBD3D8), var(--c2, #F5A8B4));
  border-radius: 100% 0 100% 0;
  opacity: var(--op, 0.6);
  left: var(--x, 50%);
  animation: petal-fall var(--d, 12s) linear var(--delay, 0s) infinite;
}
@keyframes petal-fall {
  0% { transform: translate(0, -5vh) rotate(var(--r0, 0deg)); }
  50% { transform: translate(var(--sway, 20px), 55vh) rotate(180deg); }
  100% { transform: translate(0, 110vh) rotate(360deg); }
}

/* ===== 封面 ===== */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 28px;
  padding-top: 48px;
}
.hero-frame { position: relative; width: 78%; max-width: 340px; }
.hero-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 6px solid #fff;
  box-shadow: var(--shadow-soft);
  transform: rotate(-2deg);
  background: var(--light-apricot);
}
.hero-photo img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.hero-sticker, .hero-sticker-2 { position: absolute; filter: drop-shadow(0 4px 8px rgba(139,101,68,0.18)); }
.hero-sticker { width: 88px; top: -34px; right: -26px; transform: rotate(10deg); z-index: 2; }
.hero-sticker-2 { width: 74px; bottom: -26px; left: -24px; transform: rotate(-12deg); z-index: 2; }
.hero-content { text-align: center; }
.hero-date {
  font-size: 14px;
  letter-spacing: 0.35em;
  color: var(--blush-pink);
  font-weight: 500;
  margin-bottom: 8px;
}
.hero-names { font-size: 34px; font-weight: 500; letter-spacing: 0.06em; color: var(--warm-brown-deep); }
.name-heart { color: var(--blush-pink); font-size: 26px; padding: 0 4px; }
.hero-subtitle { margin-top: 10px; font-size: 14px; color: var(--warm-brown); opacity: 0.85; }
.scroll-hint { text-align: center; color: var(--warm-brown); opacity: 0.7; animation: bounce-down 2s ease-in-out infinite; }
.scroll-arrow { display: block; font-size: 20px; }
.scroll-hint small { font-size: 11px; letter-spacing: 0.2em; }
@keyframes bounce-down { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(8px); } }

/* ===== 邀请函 ===== */
.invitation { padding-top: 40px; }
.invitation-card {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 40px 26px 34px;
  border: 1px solid rgba(139, 101, 68, 0.08);
}
.card-stickers .sticker { position: absolute; filter: drop-shadow(0 3px 6px rgba(139,101,68,0.15)); }
.card-stickers .s1 { width: 62px; top: -26px; left: -14px; transform: rotate(-12deg); }
.card-stickers .s2 { width: 56px; top: -20px; right: -10px; transform: rotate(10deg); }
.card-stickers .s3 { width: 60px; bottom: -24px; right: 14px; transform: rotate(-8deg); }
.card-body { text-align: center; }
.card-title {
  font-size: 24px;
  font-weight: 500;
  color: var(--warm-brown-deep);
  letter-spacing: 0.12em;
}
.card-title::after {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  border-radius: 2px;
  background: var(--blush-pink);
  margin: 14px auto 0;
}
.card-lead { margin-top: 18px; font-size: 15px; color: var(--warm-brown); }
.card-text { margin-top: 16px; font-size: 14px; color: var(--warm-brown); opacity: 0.9; }
.card-text p + p { margin-top: 12px; }
.card-invite { margin-top: 18px; font-size: 15px; color: var(--warm-brown-deep); }
.card-date {
  margin: 26px auto 20px;
  display: inline-block;
  padding: 8px 22px;
  border-radius: 999px;
  background: var(--light-apricot);
  color: var(--warm-brown-deep);
  font-weight: 500;
  letter-spacing: 0.18em;
  font-size: 15px;
}
.date-dot { color: var(--blush-pink); }
.card-info { display: flex; flex-direction: column; gap: 12px; text-align: left; max-width: 280px; margin: 0 auto; }
.info-row { display: flex; align-items: center; gap: 12px; }
.info-icon {
  flex: none;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--cream-deep);
  color: var(--warm-brown);
  display: grid; place-items: center;
}
.info-icon svg { width: 20px; height: 20px; }
.info-detail { font-size: 14px; }
.info-detail b { font-weight: 500; color: var(--warm-brown-deep); }

/* ===== 章节标题 ===== */
.section-heading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 500;
  color: var(--warm-brown-deep);
  letter-spacing: 0.08em;
}
.heading-sticker { width: 52px; filter: drop-shadow(0 3px 6px rgba(139,101,68,0.15)); }
.section-desc { text-align: center; margin-top: 10px; font-size: 13px; color: var(--warm-brown); opacity: 0.75; }

/* ===== 照片墙 ===== */
.album-section { overflow: hidden; }
.album-wall {
  margin-top: 30px;
  /* 用 grid 硬性锁定两列，避免个别浏览器下 flex 被内容撑成一列 */
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  height: 560px;
  overflow: hidden;
  position: relative;
}
.album-wall::before, .album-wall::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 60px;
  z-index: 2;
  pointer-events: none;
}
.album-wall::before { top: 0; background: linear-gradient(180deg, var(--cream) 0%, transparent 100%); }
.album-wall::after { bottom: 0; background: linear-gradient(0deg, var(--cream) 0%, transparent 100%); }
.wall-col { min-width: 0; overflow: hidden; }
.wall-track { display: flex; flex-direction: column; gap: 14px; animation: wall-scroll 46s linear infinite; }
.wall-track-b { animation-direction: reverse; animation-duration: 54s; }
@keyframes wall-scroll {
  from { transform: translateY(0); }
  to { transform: translateY(-50%); }
}
.album-thumb {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 4px solid #fff;
  box-shadow: var(--shadow-card);
  transform: rotate(var(--tilt, 0deg));
  background: var(--light-apricot);
  padding: 0;
}
/* 固定 2:3 比例：图还没加载出来时也占位，不会把整列压成一条 */
.album-thumb img {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
}
.album-thumb img.is-loaded { opacity: 1; }

/* ===== 祝福池 ===== */
.pool-container {
  position: relative;
  margin-top: 28px;
  height: 320px;
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 2px dashed rgba(139, 101, 68, 0.25);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.pool-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--warm-brown);
  opacity: 0.6;
  font-size: 14px;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.pool-empty.has-blessing { opacity: 0; }
.pool-empty-icon { font-size: 44px; }
.pool-hearts { position: absolute; inset: 0; pointer-events: none; }

.blessing-bubble {
  position: absolute;
  max-width: 180px;
  padding: 8px 14px;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  font-size: 13px;
  color: var(--warm-brown-deep);
  white-space: nowrap;
  animation: blessing-float 2.6s ease-out forwards;
  z-index: 2;
}
@keyframes blessing-float {
  0% { transform: translateY(0) scale(0.6) rotate(var(--rotate, 0deg)); opacity: 0; }
  15% { transform: translateY(-10px) scale(1.05) rotate(var(--rotate, 0deg)); opacity: 1; }
  80% { opacity: 1; }
  100% { transform: translateY(-70px) translateX(var(--drift, 0px)) scale(1) rotate(var(--rotate, 0deg)); opacity: 0; }
}
.capy-pop {
  position: absolute;
  width: 64px;
  animation: capy-pop 1.8s ease-out forwards;
  pointer-events: none;
  filter: drop-shadow(0 4px 8px rgba(139,101,68,0.2));
  z-index: 1;
}
@keyframes capy-pop {
  0% { transform: translateY(10px) scale(0.5); opacity: 0; }
  20% { transform: translateY(-6px) scale(1.1); opacity: 1; }
  100% { transform: translateY(-90px) scale(0.9) rotate(var(--rotate, 0deg)); opacity: 0; }
}
.heart {
  position: absolute;
  animation: heart-float 1.5s ease-out forwards;
  pointer-events: none;
}
@keyframes heart-float {
  0% { transform: translateY(0) scale(0.4); opacity: 0; }
  25% { transform: translateY(-14px) scale(1.1); opacity: 1; }
  100% { transform: translateY(-64px) scale(0.9); opacity: 0; }
}
.combo-display {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--blush-pink);
  color: #fff;
  font-size: 13px;
  z-index: 3;
  animation: combo-pop 0.3s ease;
}
.combo-display b { font-weight: 500; margin-right: 4px; }
@keyframes combo-pop { 0% { transform: scale(0.7); } 60% { transform: scale(1.15); } 100% { transform: scale(1); } }

.wishes-counter { text-align: center; margin-top: 22px; font-size: 13px; color: var(--warm-brown); opacity: 0.8; }
.counter-number {
  display: inline-block;
  font-size: 30px;
  font-weight: 500;
  color: var(--warm-brown-deep);
  margin: 0 6px;
  transition: transform 0.15s ease;
}
.wish-button {
  margin: 24px auto 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blush-pink) 0%, #FF9E9E 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 155, 155, 0.4);
  text-align: left;
  transition: transform 0.15s ease;
}
.wish-button:active { transform: scale(0.96); }
.wish-btn-seal {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  display: grid; place-items: center;
  font-size: 20px;
}
.wish-btn-label { display: flex; flex-direction: column; line-height: 1.4; }
.wish-btn-label b { font-size: 16px; font-weight: 500; }
.wish-btn-label small { font-size: 11px; opacity: 0.9; }

/* ===== 尾页 ===== */
.ending { padding-bottom: 40px; }
.ending-frame { position: relative; width: 78%; max-width: 340px; margin: 0 auto; }
.ending-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 6px solid #fff;
  box-shadow: var(--shadow-soft);
  transform: rotate(2deg);
  background: var(--light-apricot);
}
.ending-photo img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.ending-sticker, .ending-sticker-2 { position: absolute; filter: drop-shadow(0 4px 8px rgba(139,101,68,0.18)); }
.ending-sticker { width: 82px; top: -30px; left: -24px; transform: rotate(-10deg); z-index: 2; }
.ending-sticker-2 { width: 60px; bottom: -18px; right: -16px; transform: rotate(12deg); z-index: 2; }
.ending-gallery { display: flex; gap: 12px; margin-top: 22px; }
.ending-shot { flex: 1; border-radius: var(--radius-sm); overflow: hidden; border: 4px solid #fff; box-shadow: var(--shadow-card); background: var(--light-apricot); }
.ending-shot img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.shot-a { transform: rotate(-2deg); }
.shot-b { transform: rotate(2deg); }
.ending-content { text-align: center; margin-top: 30px; }
.countdown-box { display: inline-flex; flex-direction: column; align-items: center; padding: 18px 34px; border-radius: var(--radius-md); background: var(--card-bg); box-shadow: var(--shadow-card); }
.countdown-label { font-size: 12px; letter-spacing: 0.2em; color: var(--warm-brown); opacity: 0.8; }
.countdown-number { font-size: 44px; font-weight: 500; color: var(--blush-pink); line-height: 1.2; margin: 2px 0; }
.countdown-unit { font-size: 12px; color: var(--warm-brown); opacity: 0.8; }
.ending-words { margin-top: 20px; font-size: 14px; color: var(--warm-brown); }
.map-button {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 26px;
  border-radius: 999px;
  background: var(--warm-brown);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 6px 18px rgba(139, 101, 68, 0.3);
  transition: transform 0.15s ease;
}
.map-button:active { transform: scale(0.96); }
.ending-names { margin-top: 26px; font-size: 18px; font-weight: 500; color: var(--warm-brown-deep); letter-spacing: 0.1em; }
.ending-date { margin-top: 6px; font-size: 12px; color: var(--warm-brown); opacity: 0.7; letter-spacing: 0.15em; }

.app-footer { text-align: center; padding: 30px 20px 110px; color: var(--warm-brown); opacity: 0.75; }
.footer-sticker { width: 58px; margin: 0 auto 8px; opacity: 0.9; }
.app-footer p { font-size: 12px; }

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(43, 30, 18, 0.94);
  display: none;
  flex-direction: column;
}
.lightbox.is-open { display: flex; }
.lightbox-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 24px;
  z-index: 5;
}
.lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px; height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 26px;
  z-index: 5;
}
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }
.lightbox-stage { flex: 1; display: grid; place-items: center; overflow: hidden; padding: 30px 0; }
.lightbox-image { max-width: 100%; max-height: 100%; object-fit: contain; }
.lightbox-spinner {
  position: absolute;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: #fff;
  animation: lb-spin 0.8s linear infinite;
  display: none;
}
.lightbox-spinner.is-loading { display: block; }
@keyframes lb-spin { to { transform: rotate(360deg); } }
.lightbox-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px calc(14px + env(safe-area-inset-bottom));
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
}
.lightbox-autoplay {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}
.lightbox-autoplay.is-playing .autoplay-icon::after { content: "⏸"; }
.lightbox-autoplay.is-playing .autoplay-icon { font-size: 0; }

/* ===== 快捷导航 ===== */
.quick-nav {
  position: fixed;
  bottom: calc(12px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 250, 245, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  z-index: 50;
  white-space: nowrap;
}
.quick-nav a {
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--warm-brown);
  opacity: 0.75;
}
.quick-nav a.is-active { background: var(--light-apricot); color: var(--warm-brown-deep); opacity: 1; font-weight: 500; }

/* ===== 音乐控制 ===== */
.music-control {
  position: fixed;
  top: calc(14px + env(safe-area-inset-top));
  right: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 50;
}
.music-hint {
  font-size: 12px;
  color: var(--warm-brown);
  background: rgba(255, 250, 245, 0.92);
  padding: 6px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow-card);
  transition: opacity 0.4s ease;
}
.music-hint.hide { opacity: 0; pointer-events: none; }
.music-control button {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255, 250, 245, 0.92);
  box-shadow: var(--shadow-card);
  font-size: 20px;
  color: var(--warm-brown);
  display: grid; place-items: center;
}
.music-control button.playing .music-icon { animation: music-pulse 1.2s ease-in-out infinite; }
@keyframes music-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.2); } }

/* ===== 入场动画 ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== 浮动气泡 ===== */
.floating-bubbles { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.floating-bubbles i {
  position: absolute;
  bottom: -20px;
  width: var(--w, 10px); height: var(--w, 10px);
  border-radius: 50%;
  background: rgba(255, 181, 181, 0.25);
  left: var(--x, 50%);
  animation: bubble-rise var(--duration, 8s) linear var(--delay, 0s) infinite;
}
@keyframes bubble-rise {
  0% { transform: translateY(0) scale(1); opacity: 0; }
  15% { opacity: 1; }
  100% { transform: translateY(-500px) scale(1.4); opacity: 0; }
}

/* ===== 降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .petal, .wall-track, .floating-bubbles i, .scroll-hint { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}