/* ===========================================================
   美姿 · 批号查询
   配色取自品牌 logo：主色橙 #FD9B2C / 品红 #D848C3 / 白
   排版原则（移动优先）：
     · 中文正文一律左对齐，只有标题、品牌名居中
     · 字号下限：正文 14px / 次要 13px / 声明 12.5px
     · 行高统一 1.7~1.8，段间距用 8px 基准递增
     · 信息分层：徽章 → 日期 → 状态 → 依据（可展开）

   动效原则：
     · 只动 transform / opacity / clip-path，不碰布局属性（低端机不卡）
     · 入场类动效的状态只写在 keyframes 里 + both 填充，
       这样 prefers-reduced-motion 关掉动画后元素仍是「可见终态」
     · 全部受 prefers-reduced-motion 约束
   =========================================================== */

/* 输入框聚焦流光的旋转角度（@property 才能补间动画） */
@property --mzflow{syntax:'<angle>';inherits:false;initial-value:0deg;}

:root{
  --orange:#FD9B2C;
  --orange-lt:#FFB65C;
  --orange-dk:#EE7E15;
  --amber:#FFC46B;
  --magenta:#D848C3;
  --magenta-lt:#F0A8E4;
  --magenta-dk:#B92FA8;
  --pink-bridge:#E8549F;

  --ink:#33241B;
  --ink-2:#6B5548;
  --ink-3:#9C887C;
  --line:#F4E2D1;
  --line-soft:#F8ECDF;

  --ok:#0E8A66;
  --ok-bg:#E9F7F1;
  --warn:#A96A0C;
  --warn-bg:#FDF4E3;
  --bad:#BE3A2B;
  --bad-bg:#FDEDEA;
  --none-bg:#F7F2EE;

  --white:#fff;
  --shadow-panel:0 22px 56px rgba(214,120,20,.12),0 3px 12px rgba(214,120,20,.05);
  --shadow-card:0 2px 10px rgba(214,120,20,.05);

  color-scheme:light;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}

body{
  min-height:100vh;
  min-height:100svh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px 16px;
  padding-bottom:calc(24px + env(safe-area-inset-bottom));
  font-family:system-ui,-apple-system,"PingFang SC","MiSans","HarmonyOS Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:linear-gradient(168deg,#FFFCF7 0%,#FFF5EA 46%,#FDEEF9 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* ---------- 背景装饰 ---------- */
.backdrop{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0;}
.glow{position:absolute;border-radius:50%;filter:blur(66px);}
.glow--1{width:340px;height:340px;top:-96px;left:-96px;background:radial-gradient(circle,#FFC078,transparent 70%);opacity:.72;animation:drift1 16s ease-in-out infinite;}
.glow--2{width:380px;height:380px;bottom:-126px;right:-126px;background:radial-gradient(circle,#F4AFE9,transparent 70%);opacity:.6;animation:drift2 19s ease-in-out infinite;}
.glow--3{width:250px;height:250px;top:44%;left:50%;margin:-125px 0 0 -125px;background:radial-gradient(circle,#FFDCA8,transparent 72%);opacity:.52;animation:drift1 22s ease-in-out infinite reverse;}
@keyframes drift1{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(26px,32px) scale(1.14);}}
@keyframes drift2{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(-30px,-26px) scale(1.1);}}

.spark{position:absolute;border-radius:50%;}
.spark--1{width:9px;height:9px;top:17%;left:9%;background:var(--orange);opacity:.4;animation:sway 11s ease-in-out infinite;}
.spark--2{width:11px;height:11px;top:71%;left:85%;background:var(--magenta-lt);opacity:.5;animation:sway 14s ease-in-out infinite reverse;}
.spark--3{width:7px;height:7px;top:33%;left:89%;background:var(--amber);opacity:.55;animation:sway 9s ease-in-out infinite;}
@keyframes sway{0%,100%{transform:translateY(0);}50%{transform:translateY(-22px);}}

/* ---------- 面板 ---------- */
.stage{position:relative;z-index:1;width:100%;max-width:460px;}

.panel{
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.94);
  border-radius:28px;
  box-shadow:var(--shadow-panel);
  padding:32px 22px 24px;
}

/* ---------- 品牌 ---------- */
.brand{text-align:center;margin-bottom:22px;}
.brand-logo{
  position:relative;
  display:inline-block;
  width:68px;height:68px;
  border-radius:22px;
  border:3px solid #fff;
  box-shadow:0 12px 26px rgba(253,155,44,.3),0 3px 10px rgba(216,72,195,.16);
  margin-bottom:12px;
  background:var(--orange);
  animation:logoIn .78s cubic-bezier(.34,1.42,.5,1) both;
}
.brand-logo img{width:100%;height:100%;display:block;object-fit:cover;border-radius:19px;}
/* 【动效 1a】logo 落位后向外荡出一圈橙光 */
.brand-logo::after{
  content:'';
  position:absolute;
  inset:-3px;
  border-radius:22px;
  border:2px solid rgba(253,155,44,.55);
  opacity:0;
  animation:ringOut 1.15s cubic-bezier(.22,.61,.36,1) .34s both;
  pointer-events:none;
}
@keyframes logoIn{
  0%{opacity:0;transform:scale(.62) translateY(8px);}
  60%{opacity:1;}
  100%{opacity:1;transform:scale(1) translateY(0);}
}
@keyframes ringOut{
  0%{opacity:.8;transform:scale(1);}
  100%{opacity:0;transform:scale(2.05);}
}

.brand-name{
  font-family:"Songti SC","STSong",Georgia,"Noto Serif CJK SC",serif;
  font-size:31px;
  font-weight:600;
  letter-spacing:.28em;
  text-indent:.28em;
  line-height:1.2;
  background:linear-gradient(118deg,#EE7E15 0%,#FD9B2C 34%,#E8549F 72%,#D848C3 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:var(--orange-dk);
  /* 【动效 1b】从左往右扫出，两个字依次浮现 */
  animation:nameSweep .8s cubic-bezier(.22,.61,.36,1) .3s both;
}
@keyframes nameSweep{
  from{clip-path:inset(0 100% 0 0);}
  to{clip-path:inset(0 -8% 0 0);}
}
.brand-sub{
  margin-top:6px;
  font-size:12px;
  line-height:1.4;
  letter-spacing:.3em;
  text-indent:.3em;
  color:var(--ink-3);
  font-weight:500;
  animation:fadeIn .6s ease .62s both;
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}

/* ---------- 搜索区 ---------- */
.search{margin-bottom:0;}
.field{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  height:56px;
  padding:4px 4px 4px 18px;
  background:var(--white);
  border:1.5px solid var(--line);
  border-radius:999px;
  box-shadow:0 2px 10px rgba(214,120,20,.05);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field.is-focus{
  border-color:var(--orange-lt);
  box-shadow:0 0 0 4px rgba(253,155,44,.16),0 6px 18px rgba(214,120,20,.1);
}
/* 【动效 4】聚焦时有一道渐变光沿边框绕圈流动 */
.field::before{
  content:'';
  position:absolute;
  inset:-2px;
  border-radius:999px;
  padding:2px;
  background:conic-gradient(from var(--mzflow),
    rgba(253,155,44,0) 0deg,
    rgba(253,155,44,0) 186deg,
    rgba(253,155,44,.95) 268deg,
    rgba(232,84,159,1) 316deg,
    rgba(216,72,195,.95) 346deg,
    rgba(216,72,195,0) 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
  opacity:0;
  transition:opacity .28s ease;
  pointer-events:none;
}
.field.is-focus::before{opacity:1;animation:flowSpin 2.4s linear infinite;}
@keyframes flowSpin{to{--mzflow:360deg;}}

.input{
  flex:1;
  min-width:0;
  height:100%;
  border:none;
  outline:none;
  background:transparent;
  font-family:inherit;
  font-size:16px;              /* ≥16px：iOS 聚焦不放大 */
  line-height:1;
  color:var(--ink);
  letter-spacing:.06em;
  text-transform:uppercase;
  font-variant-numeric:tabular-nums;
}
.input::placeholder{color:#BFB0B6;letter-spacing:0;text-transform:none;}

.submit{
  position:relative;
  overflow:hidden;
  flex:none;
  height:48px;
  padding:0 24px;
  border:none;
  border-radius:999px;
  font-family:inherit;
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.14em;
  text-indent:.14em;
  color:#fff;
  cursor:pointer;
  background:linear-gradient(135deg,#FD9B2C 0%,#E8549F 68%,#D848C3 100%);
  box-shadow:0 8px 20px rgba(226,80,170,.28);
  transition:transform .2s ease,box-shadow .2s ease,opacity .2s ease;
}
.submit:active{transform:scale(.96);box-shadow:0 4px 12px rgba(226,80,170,.24);}
.submit:disabled{opacity:.6;cursor:default;}
/* 【动效 7】点击时从指尖位置荡开一圈水波（白光圈 + 淡填充，在橙底上才看得清） */
.ripple{
  position:absolute;
  border-radius:50%;
  border:2px solid rgba(255,255,255,.9);
  background:radial-gradient(circle,rgba(255,255,255,.5) 0%,rgba(255,255,255,.16) 52%,rgba(255,255,255,0) 74%);
  transform:scale(0);
  opacity:0;
  animation:rippleGo .68s cubic-bezier(.2,.7,.35,1) forwards;
  pointer-events:none;
}
@keyframes rippleGo{
  0%{transform:scale(0);opacity:.95;}
  55%{opacity:.7;}
  100%{transform:scale(1);opacity:0;}
}

/* ---------- 结果区 ---------- */
.result{margin-top:20px;}
.result[hidden]{display:none;}
.result--ok>.bc{animation:rise .42s cubic-bezier(.22,.61,.36,1) both;}
.result--ok>.bc:nth-child(2){animation-delay:.06s;}
.result--ok>.bc:nth-child(3){animation-delay:.12s;}
.result--ok>.bc:nth-child(4){animation-delay:.18s;}
@keyframes rise{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}

/* 结果卡 */
.bc{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 16px 14px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.bc+.bc{margin-top:12px;}
/* 左侧状态色条 */
.bc::before{
  content:'';
  position:absolute;
  left:0;top:0;bottom:0;width:3px;
  background:var(--orange);
  /* 【动效 13】左侧色条从中间向上下生长出来 */
  animation:barGrow .52s cubic-bezier(.22,.61,.36,1) .08s both;
}
@keyframes barGrow{
  from{transform:scaleY(0);}
  to{transform:scaleY(1);}
}
.bc--ok::before{background:var(--ok);}
.bc--warn::before{background:var(--warn);}
.bc--bad::before{background:var(--bad);}
.bc--none::before{background:var(--ink-3);}

/* 首行：集团徽章 + 状态徽章 */
.bc-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:10px;
}
.bc-group{
  flex:0 1 auto;
  min-width:0;
  font-size:13px;
  font-weight:600;
  line-height:1.5;
  color:var(--magenta-dk);
  background:#FDEBF8;
  border-radius:999px;
  padding:3px 11px;
  letter-spacing:.02em;
}
.bc-badge{
  flex:none;
  font-size:12px;
  font-weight:600;
  line-height:1.5;
  padding:3px 10px;
  border-radius:999px;
  letter-spacing:.04em;
}
.bc-badge--ok{color:var(--ok);background:var(--ok-bg);}
.bc-badge--warn{color:var(--warn);background:var(--warn-bg);}
.bc-badge--bad{color:var(--bad);background:var(--bad-bg);}
.bc-badge--none{color:var(--ink-2);background:var(--none-bg);}
/* 【动效 11】状态脉冲：过期红圈急促、临期琥珀圈缓慢呼吸 */
.bc-badge--bad{animation:pulseBad 1.6s ease-in-out .7s infinite;}
.bc-badge--warn{animation:pulseWarn 2.6s ease-in-out .7s infinite;}
@keyframes pulseBad{
  0%,100%{box-shadow:0 0 0 0 rgba(190,58,43,.34);}
  55%{box-shadow:0 0 0 6px rgba(190,58,43,0);}
}
@keyframes pulseWarn{
  0%,100%{box-shadow:0 0 0 0 rgba(169,106,12,.26);}
  55%{box-shadow:0 0 0 6px rgba(169,106,12,0);}
}

/* 涵盖品牌：小字、左对齐、行高放宽 */
.bc-brands{
  font-size:12.5px;
  line-height:1.75;
  color:var(--ink-3);
  text-align:left;
  word-break:break-word;
}

/* 生产日期：本卡的主角 */
.bc-hero{
  margin-top:12px;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.bc-hero-k{
  font-size:11.5px;
  line-height:1.5;
  letter-spacing:.14em;
  color:var(--ink-3);
}
.bc-hero-v{
  font-size:19px;
  font-weight:700;
  line-height:1.45;
  letter-spacing:.01em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
/* 【动效 9】生产日期数字滚动定格：等宽数字，滚动时宽度不跳 */
.roll{
  display:inline-block;
  text-align:center;
  font-variant-numeric:tabular-nums;
}

/* 状态条：一块底色 + 一行结论 + 一行说明 */
.bc-status{
  position:relative;
  overflow:hidden;
  margin-top:11px;
  border-radius:12px;
  padding:10px 12px;
  text-align:left;
}
/* 【动效 11】状态条内侧的呼吸光，强化「红/黄」的紧迫感 */
.bc-status::after{
  content:'';
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:0;
}
.bc-status--bad::after{
  background:radial-gradient(circle at 10% 50%,rgba(190,58,43,.2),transparent 64%);
  animation:glowBad 1.6s ease-in-out .7s infinite;
}
.bc-status--warn::after{
  background:radial-gradient(circle at 10% 50%,rgba(169,106,12,.16),transparent 64%);
  animation:glowWarn 2.6s ease-in-out .7s infinite;
}
@keyframes glowBad{0%,100%{opacity:.28;}50%{opacity:.85;}}
@keyframes glowWarn{0%,100%{opacity:.24;}50%{opacity:.62;}}
.bc-status--ok{background:var(--ok-bg);}
.bc-status--warn{background:var(--warn-bg);}
.bc-status--bad{background:var(--bad-bg);}
.bc-status--none{background:var(--none-bg);}
.bc-status-main{
  position:relative;
  z-index:1;
  display:block;
  font-size:14.5px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:.01em;
}
.bc-status--ok .bc-status-main{color:var(--ok);}
.bc-status--warn .bc-status-main{color:var(--warn);}
.bc-status--bad .bc-status-main{color:var(--bad);}
.bc-status--none .bc-status-main{color:var(--ink-2);}
.bc-status-sub{
  position:relative;
  z-index:1;
  display:block;
  margin-top:3px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-2);
}
.bc-status-sub b{font-weight:600;color:inherit;}

/* 读法依据：默认收起，减少文字密度 */
.bc-why{margin-top:12px;border-top:1px dashed var(--line);}
.bc-why summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:10px 0 4px;
  font-size:12.5px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink-3);
  user-select:none;
}
.bc-why summary::-webkit-details-marker{display:none;}
.bc-why summary::after{
  content:'';
  flex:none;
  width:7px;height:7px;
  margin-right:3px;
  border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
  transition:transform .22s ease;
}
.bc-why[open] summary::after{transform:rotate(-135deg) translateY(-1px);}
.bc-why-body{padding-top:2px;animation:fadeUp .26s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}
.bc-read{
  font-size:13px;
  line-height:1.75;
  color:var(--ink-2);
  text-align:left;
}
.bc-note{
  margin-top:8px;
  font-size:12.5px;
  line-height:1.75;
  color:var(--warn);
  text-align:left;
}

.bc-more{
  margin-top:12px;
  font-size:12.5px;
  line-height:1.75;
  color:var(--ink-3);
  text-align:left;
  padding-left:2px;
}

/* 空 / 无法识别 */
.empty{
  text-align:left;
  padding:18px 16px;
  border-radius:16px;
  background:#FFFCF8;
  border:1px dashed var(--line);
  animation:rise .34s cubic-bezier(.22,.61,.36,1);
}
.empty-title{
  font-size:14.5px;
  font-weight:700;
  line-height:1.6;
  color:var(--ink-2);
}
.empty-desc{
  margin-top:7px;
  font-size:13px;
  line-height:1.8;
  color:var(--ink-3);
}

.result--idle .empty{background:#FFFDFA;}

/* ---------- 页脚说明 ---------- */
.foot{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-direction:column;
  gap:8px;
}
.foot-item{
  display:flex;
  align-items:flex-start;
  gap:7px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-3);
  text-align:left;
}
.foot-mark{
  flex:none;
  width:5px;height:5px;
  margin-top:8px;
  border-radius:50%;
  background:var(--line);
}
.foot-item--warn{color:var(--ink-2);}
.foot-item--warn .foot-mark{background:var(--amber);}
.foot b{font-weight:600;color:var(--ink-2);}

/* ---------- 响应式 ---------- */
@media (max-width:380px){
  body{padding:18px 12px;padding-bottom:calc(18px + env(safe-area-inset-bottom));}
  .panel{padding:26px 16px 20px;border-radius:24px;}
  .brand-logo{width:62px;height:62px;border-radius:20px;}
  .brand-logo img{border-radius:17px;}
  .brand-name{font-size:28px;}
  .submit{padding:0 18px;font-size:14px;}
  .bc-hero-v{font-size:18px;}
}
@media (min-width:560px){
  .panel{padding:40px 32px 28px;}
  .brand-name{font-size:34px;}
  .bc-hero-v{font-size:20px;}
}
@media (hover:hover){
  .submit:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(226,80,170,.34);}
  .bc-why summary:hover{color:var(--ink-2);}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}