/* =================================================================
 *  莜莜百日宴 · 国潮柔粉胭脂风格
 * ================================================================= */

:root{
  --c-primary:   #D7263D;   /* 中国红 */
  --c-deep:      #9B1B26;   /* 深酒红 */
  --c-cinnabar:  #C9384B;   /* 朱砂 */
  --c-rose:      #E8606C;   /* 玫瑰红，柔化点缀 */
  --c-gold:      #D4A53A;   /* 亮金 */
  --c-gold-2:    #F2D27A;   /* 浅金 */
  --c-gold-soft: #EAD4A0;   /* 米金 */
  --c-ink:       #2B1818;   /* 墨 */
  --c-ink-soft:  #6B4E3E;
  --c-paper:     #FDF4E0;   /* 暖米 */
  --c-paper-2:   #F7E4BD;   /* 深暖米 */
  --c-pink:      #F4C5C5;   /* 点缀粉 */

  --f-serif:  "Noto Serif SC", "Songti SC", "STSong", serif;
  --f-brush:  "Ma Shan Zheng", "STKaiti", "KaiTi", serif;

  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html,body{
  margin:0; padding:0;
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-weight:500;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: contain;
}

body{
  /* 暖米 + 宣纸纹理 + 顶部红晕 */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(215,38,61,.10) 0%, transparent 70%),
    radial-gradient(rgba(212,165,58,.07) 1px, transparent 1px),
    radial-gradient(rgba(215,38,61,.05) 1px, transparent 1px),
    linear-gradient(180deg, #FFF5DC 0%, #FBE7C0 100%);
  background-size: 100% 100%, 24px 24px, 60px 60px, 100% 100%;
  background-position: 0 0, 0 0, 12px 12px, 0 0;
  min-height: 100vh;
  min-height: 100dvh;
}

img{ display:block; max-width:100%; height:auto; }
button{ font: inherit; color: inherit; background:none; border:0; cursor:pointer; }
a{ color: inherit; text-decoration:none; }

/* 背景花瓣 canvas */
#petals{
  position: fixed; inset: 0;
  width:100%; height:100%;
  pointer-events:none; z-index:1;
}

/* 音乐按钮 */
.music-btn{
  position: fixed; right: 16px; top: 16px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(251,244,230,.86);
  color: var(--c-primary);
  box-shadow: 0 4px 12px rgba(201,56,75,.18);
  z-index: 100;
  display:flex; align-items:center; justify-content:center;
  transition: transform .4s var(--ease);
}
.music-btn.playing svg{ animation: spin 4s linear infinite; }
.music-btn.muted{ opacity:.55; }
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ─────────── 全局 screen 容器 ─────────── */
html{
  scroll-behavior: smooth;
}
main{
  position: relative;
  z-index: 2;
  max-width: 480px;
  margin: 0 auto;
  overflow: hidden;
}
.screen{
  position: relative;
  min-height: 100vh;
  min-height: 100svh;   /* svh = small viewport height，稳定值，不随地址栏伸缩 */
  padding: 56px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* 通用 reveal 动效 */
[data-reveal]{
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 1s var(--ease), transform 1.1s var(--ease);
}
[data-reveal].in{ opacity:1; transform: none; }
[data-reveal] > * { transition-delay: .12s; }

/* ════════════════════════════════════════════════════════════
   ① 封面：编辑级杂志风格
       照片满屏 · 文字克制 · 一根金线 · 一抹深红
   ════════════════════════════════════════════════════════════ */
.cover{
  padding: 0;
  overflow: hidden;
  background: var(--c-paper);
}

/* 满版背景照（用 lvh 锁住高度，杜绝随地址栏伸缩跳变） */
.cover-bg{
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100vh;
  height: 100lvh;       /* 大视口，永远以最大高度计算，不会因地址栏伸缩重排 */
  z-index: 0;
  overflow: hidden;
}
.cover-bg img{
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 65% 28%;
  animation: kenburns 18s ease-in-out infinite alternate;
}
@keyframes kenburns{
  0%   { transform: scale(1.02); }
  100% { transform: scale(1.10); }
}

/* 底部渐变罩 */
.cover-veil{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 52%;
  z-index: 2;
  background: linear-gradient(180deg,
    rgba(253,244,224, 0)    0%,
    rgba(253,244,224,.45)  40%,
    rgba(253,244,224,.88)  72%,
    rgba(253,244,224, 1)  100%);
  pointer-events: none;
}

/* （旧的顶部红带 & 囍字已弃用） */

/* (旧的 .cover-portrait 已废弃 —— 改用满版背景照) */

/* 标题块（绝对定位于底部，编辑级排版） */
.cover-meta{
  position: absolute;
  left: 0; right: 0;
  bottom: 76px;
  z-index: 5;
  text-align: center;
  padding: 0 36px;
}

/* 上方小标签 */
.cover-eyebrow{
  display: inline-block;
  font-family: serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 6px;
  color: var(--c-gold);
  margin-bottom: 18px;
  position: relative;
  padding: 0 22px;
  animation: titleIn 1s var(--ease) .4s both;
}
.cover-eyebrow::before,
.cover-eyebrow::after{
  content: "";
  position: absolute;
  top: 50%; width: 14px; height: 1px;
  background: var(--c-gold);
  opacity: .65;
}
.cover-eyebrow::before{ left: 0; }
.cover-eyebrow::after{  right: 0; }

/* 主标题 */
.cover-h1{
  margin: 0;
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: 38px;
  letter-spacing: 2px;
  line-height: 1.15;
  color: #8B1F2E;
  animation: titleIn 1.1s var(--ease) .6s both;
}

/* 副标题（英文斜体） */
.cover-h2{
  margin: 12px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--c-ink-soft);
  font-weight: 400;
  animation: titleIn 1s var(--ease) .8s both;
}
.cover-h2 em{
  font-style: italic;
  font-weight: 400;
}

/* 一根金线 */
.cover-rule{
  margin: 22px auto 22px;
  width: 60px;
  height: 1px;
  background: var(--c-gold);
  opacity: .7;
  animation: ruleGrow 1s var(--ease) 1s both;
  transform-origin: center;
}
@keyframes ruleGrow{
  0%   { width: 0;     opacity: 0; }
  100% { width: 60px;  opacity: .7; }
}

/* 日期 */
.cover-when{
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 5px;
  color: var(--c-ink);
  font-weight: 500;
  animation: titleIn 1s var(--ease) 1.15s both;
}
.cover-where{
  margin: 8px 0 0;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--c-ink-soft);
  animation: titleIn 1s var(--ease) 1.3s both;
}

@keyframes titleIn{
  0%   { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: none; }
}

/* 上滑提示 */
.scroll-hint{
  position: absolute;
  z-index: 6;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  gap: 4px;
  color: var(--c-ink-soft);
  font-size: 10px;
  letter-spacing: 4px;
  opacity: 0;
  animation: hintIn 1s var(--ease) 1.8s forwards;
}
@keyframes hintIn{ to{ opacity: .85; } }
.scroll-hint .arrow{
  width: 1px; height: 22px;
  background: linear-gradient(180deg, transparent, var(--c-primary));
  position: relative;
  animation: hintMove 1.6s ease-in-out infinite;
}
.scroll-hint .arrow::after{
  content:"";
  position:absolute; left:-3px; bottom:0;
  width:7px; height:7px;
  border-right: 1px solid var(--c-primary);
  border-bottom: 1px solid var(--c-primary);
  transform: rotate(45deg);
}
@keyframes hintMove{
  0%,100%{ transform: translateY(0); opacity:1; }
  50%    { transform: translateY(6px); opacity:.4; }
}

/* ════════════════════════════════════════════════════════════
   ② 邀请正文（宣纸卡片）
   ════════════════════════════════════════════════════════════ */
.greeting{ padding-top: 70px; padding-bottom: 70px; }

.paper{
  position: relative;
  width: 100%;
  background:
    linear-gradient(180deg, #FFFBEE 0%, #F7EBCF 100%);
  border: 1px solid rgba(201,162,75,.45);
  padding: 44px 30px 60px;
  box-shadow:
    0 14px 40px rgba(43,32,24,.12),
    inset 0 0 0 6px rgba(251,244,230,.6),
    inset 0 0 0 7px rgba(201,162,75,.4);
}
.paper::before,.paper::after{
  content:""; position:absolute;
  left: 14px; right: 14px;
  height: 6px;
  background:
    repeating-linear-gradient(90deg,
      var(--c-gold) 0 8px, transparent 8px 14px);
  opacity:.5;
}
.paper::before{ top: 14px; }
.paper::after{  bottom: 14px; }

.paper-title{
  text-align:center;
  margin-bottom: 28px;
}
.paper-title .zh{
  display:block;
  font-size: 22px;
  letter-spacing: 12px;
  font-weight: 900;
  color: var(--c-primary);
  text-indent: 12px;
}
.paper-title .en{
  display:block;
  margin-top: 4px;
  font-size: 9px;
  letter-spacing: 5px;
  color: var(--c-gold);
  font-family: serif;
}

.paper-body{
  font-size: 16px;
  line-height: 2.1;
  color: var(--c-ink);
  text-align: center;
  letter-spacing: 1px;
}
.paper-body p{ margin: 4px 0; }
.paper-body .lead{ text-align: left; margin-bottom: 10px; }
.paper-body em{
  font-style: normal;
  color: var(--c-primary);
  font-weight: 700;
  padding: 0 4px;
}
.paper-body .invite{ color: var(--c-primary); font-weight: 700; }

.paper-stamp{
  position: absolute;
  right: 30px; bottom: 28px;
  width: 50px; height: 50px;
  background: var(--c-primary);
  color: #FBF4E6;
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 2px;
  display:flex; align-items:center; justify-content:center;
  border-radius: 2px;
  transform: rotate(6deg);
  box-shadow: 0 3px 8px rgba(201,56,75,.4);
}

/* ════════════════════════════════════════════════════════════
   ③ 宝宝档案
   ════════════════════════════════════════════════════════════ */
.card-title{
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 28px;
}
.card-title .brush{
  font-family: var(--f-brush);
  font-size: 36px;
  color: var(--c-ink);
  position: relative;
  padding: 0 4px;
}
.card-title .brush::after{
  content:"";
  position:absolute;
  left: 50%; bottom: -8px;
  transform: translateX(-50%);
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
}
.card-title.small .brush{ font-size: 28px; }
.card-title.small .brush::after{ width:4px; height:4px; bottom:-6px; }

.photo-card{
  position: relative;
  width: 100%;
  margin: 0 0 20px;
}
.photo-card img{
  width: 100%;
  display: block;
  border-radius: 2px;
}
.photo-frame{
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(251,244,230,.7);
  outline: 1px solid rgba(201,162,75,.4);
  outline-offset: 2px;
  pointer-events: none;
}
.photo-card-lg{ margin-bottom: 28px; }

.photo-card{
  box-shadow:
    0 12px 28px rgba(43,32,24,.18),
    0 0 0 6px var(--c-paper),
    0 0 0 7px rgba(201,162,75,.45);
  border-radius: 2px;
  overflow: hidden;
}

.photo-cap{
  margin: 14px 0 0;
  text-align: center;
  font-family: var(--f-brush);
  font-size: 18px;
  color: var(--c-ink-soft);
  letter-spacing: 2px;
}

.baby-info{
  width: 100%;
  background: linear-gradient(180deg, #FFFBEE 0%, #F7EBCF 100%);
  border: 1px solid rgba(201,162,75,.4);
  padding: 22px 24px;
  margin-bottom: 22px;
}
.info-row{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(201,162,75,.35);
  font-size: 14px;
  letter-spacing: 2px;
}
.info-row:last-child{ border-bottom: 0; }
.info-row .k{
  color: var(--c-gold);
  font-weight: 700;
  flex-shrink: 0;
}
.info-row .v{
  color: var(--c-ink);
  font-weight: 700;
}

.poem{
  margin: 0;
  font-family: var(--f-brush);
  text-align: center;
  font-size: 18px;
  color: var(--c-primary);
  letter-spacing: 1px;
  line-height: 2;
}

/* ════════════════════════════════════════════════════════════
   ④ 画廊
   ════════════════════════════════════════════════════════════ */
.gallery .photo-stack{
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.gallery .photo-card{
  transform: rotate(-1deg);
}
.gallery .photo-card:nth-child(2n){
  transform: rotate(1.2deg);
}
.gallery .photo-card:nth-child(3n){
  transform: rotate(-1.6deg);
}

/* ════════════════════════════════════════════════════════════
   ⑤ 宴会信息
   ════════════════════════════════════════════════════════════ */
.banquet{ padding-top: 70px; }

.invite-card{
  position: relative;
  width: 100%;
  background: linear-gradient(180deg, #FFFBEE 0%, #F4E6CC 100%);
  border: 1px solid rgba(201,162,75,.55);
  padding: 36px 26px 30px;
  box-shadow:
    0 14px 40px rgba(43,32,24,.14),
    inset 0 0 0 1px rgba(251,244,230,.7);
}
.invite-corner{
  position: absolute;
  width: 28px; height: 28px;
  border: 2px solid var(--c-primary);
}
.invite-corner.tl{ top:8px; left:8px;    border-right:0; border-bottom:0; }
.invite-corner.tr{ top:8px; right:8px;   border-left:0;  border-bottom:0; }
.invite-corner.bl{ bottom:8px; left:8px; border-right:0; border-top:0; }
.invite-corner.br{ bottom:8px; right:8px;border-left:0;  border-top:0; }

.bq-row{
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(201,162,75,.4);
}
.bq-row:last-of-type{ border-bottom: 0; }

.bq-icon{
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #FBF4E6;
  font-weight: 900;
  font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 8px rgba(201,56,75,.3);
}
.bq-main{
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--c-ink);
}
.bq-sub{
  font-size: 12px;
  margin-top: 2px;
  color: var(--c-ink-soft);
  letter-spacing: 1px;
}
.bq-addr{ font-size: 15px; line-height: 1.7; }

/* 倒计时 */
.countdown{
  margin-top: 22px;
  padding: 16px;
  background: var(--c-paper);
  border: 1px solid rgba(201,162,75,.4);
}
.cd-label{
  text-align: center;
  font-size: 13px;
  color: var(--c-gold);
  letter-spacing: 6px;
  margin-bottom: 12px;
}
.cd-nums{
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 6px;
}
.cd-cell{
  text-align:center;
  background: var(--c-primary);
  color: #FBF4E6;
  padding: 8px 0 6px;
  border-radius: 2px;
}
.cd-cell b{
  display:block;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.cd-cell span{
  display:block;
  font-size: 10px;
  letter-spacing: 2px;
  margin-top: 4px;
  opacity: .85;
}

/* 行动按钮 */
.bq-actions{
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.btn{
  display: block;
  text-align: center;
  padding: 14px 0;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 3px;
  border-radius: 2px;
  transition: transform .2s var(--ease);
}
.btn:active{ transform: scale(.97); }
.btn-primary{
  background: var(--c-primary);
  color: #FBF4E6;
  box-shadow: 0 6px 16px rgba(201,56,75,.3);
}
.btn-ghost{
  background: transparent;
  color: var(--c-primary);
  border: 1px solid var(--c-primary);
}

/* ════════════════════════════════════════════════════════════
   ⑥ 署名
   ════════════════════════════════════════════════════════════ */
.sign{
  background:
    radial-gradient(ellipse at center, rgba(215,38,61,.10) 0%, transparent 60%);
}
.sign-inner{
  text-align: center;
  width: 100%;
}

/* 红色"百日"印章 */
.sign-seal{
  display: inline-flex;
  flex-direction: column;
  background: var(--c-primary);
  color: var(--c-gold-2);
  width: 56px; height: 92px;
  align-items: center; justify-content: center;
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 4px;
  line-height: 1.6;
  box-shadow:
    0 6px 16px rgba(155,27,38,.35),
    inset 0 0 0 2px rgba(242,210,122,.4);
  margin-bottom: 28px;
  transform: rotate(-4deg);
  border-radius: 3px;
  animation: stamp 1s var(--ease) .2s both;
}
.sign-seal span{ display:block; }
@keyframes stamp{
  0%   { opacity:0; transform: rotate(-24deg) scale(2); }
  60%  { opacity:1; transform: rotate(-2deg)  scale(.92); }
  100% { opacity:1; transform: rotate(-4deg)  scale(1); }
}

.sign-cn{
  font-family: var(--f-brush);
  font-size: 30px;
  letter-spacing: 14px;
  color: var(--c-ink);
  margin: 0 0 14px;
  text-indent: 14px;
}
.sign-host{
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 4px;
  color: var(--c-primary);
  margin: 0 0 8px;
}
.sign-sub{
  margin: 0;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--c-ink-soft);
}
.sign-divider{
  margin: 32px auto;
  display:flex; align-items:center; justify-content:center; gap: 14px;
}
.sign-divider span{
  height: 1px; width: 60px;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
}
.sign-divider i{
  font-style: normal;
  font-family: var(--f-brush);
  font-size: 22px;
  color: var(--c-primary);
  width: 40px; height: 40px;
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
}
.bless{
  font-family: var(--f-brush);
  font-size: 22px;
  color: var(--c-primary);
  letter-spacing: 2px;
  line-height: 2;
  margin: 0;
}
.rsvp-hint{
  margin-top: 32px;
  font-size: 12px;
  color: var(--c-gold);
  letter-spacing: 6px;
}

/* ════════════════════════════════════════════════════════════
   ⑦ 转发提示 + 落款卡
   ════════════════════════════════════════════════════════════ */
.share-tip{
  padding: 50px 28px 60px;
}
.share-inner{
  text-align: center;
  width: 100%;
}

.sh-shuangxi{
  font-family: var(--f-serif);
  font-weight: 900;
  font-size: 64px;
  line-height: 1;
  color: var(--c-primary);
  text-shadow:
    2px 2px 0 var(--c-gold-2),
    -1px -1px 0 var(--c-gold-2),
    0 0 16px rgba(215,38,61,.2);
  margin-bottom: 24px;
}

.sh-1{
  font-family: var(--f-brush);
  font-size: 28px;
  letter-spacing: 6px;
  color: var(--c-primary);
  margin: 0 0 12px;
}
.sh-2{
  font-size: 13px;
  color: var(--c-ink-soft);
  letter-spacing: 3px;
  line-height: 1.9;
  margin: 0 0 16px;
}
.sh-arrow{
  font-size: 32px;
  color: var(--c-gold);
  font-weight: 700;
  animation: arrowBob 1.4s ease-in-out infinite;
}
@keyframes arrowBob{
  0%,100%{ transform: translate(0,0); }
  50%   { transform: translate(6px,-8px); }
}

.sh-divider{
  display: flex; align-items: center; justify-content: center;
  gap: 12px;
  margin: 36px auto 24px;
}
.sh-divider span{
  height: 1px; width: 60px;
  background: linear-gradient(90deg, transparent, var(--c-gold));
}
.sh-divider span:last-child{
  background: linear-gradient(90deg, var(--c-gold), transparent);
}
.sh-divider i{
  font-style: normal;
  color: var(--c-gold);
  font-size: 18px;
}

/* 迷你转发卡 */
.sh-mini-card{
  display: flex;
  gap: 14px;
  align-items: center;
  background: linear-gradient(180deg, #FFFBEE 0%, #FAEAC8 100%);
  border: 1px solid rgba(212,165,58,.5);
  padding: 14px;
  border-radius: 4px;
  box-shadow: 0 10px 24px rgba(155,27,38,.10);
  text-align: left;
  margin-bottom: 28px;
}
.sh-mini-photo{
  width: 70px; height: 70px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px var(--c-paper), 0 0 0 3px rgba(212,165,58,.6);
}
.sh-mini-photo img{
  width: 100%; height: 100%;
  object-fit: cover;
}
.sh-mini-info{ flex: 1; min-width: 0; }
.sh-mini-title{
  font-size: 17px;
  font-weight: 900;
  color: var(--c-primary);
  letter-spacing: 2px;
  margin-bottom: 4px;
}
.sh-mini-meta{
  font-size: 11px;
  color: var(--c-ink-soft);
  letter-spacing: 1px;
  line-height: 1.7;
}

.sh-bless{
  font-family: var(--f-brush);
  font-size: 22px;
  letter-spacing: 8px;
  color: var(--c-primary);
  margin: 0 0 8px;
}
.sh-from{
  font-size: 12px;
  color: var(--c-gold);
  letter-spacing: 4px;
  margin: 0;
}

/* ────────── 媒体查询：超窄屏 ────────── */
@media (max-width: 360px){
  .vtitle{ font-size: 36px; }
  .paper-body{ font-size: 15px; line-height: 2; }
  .cd-cell b{ font-size: 18px; }
}