:root{
  --bg:#fdf5f5; --card:#ffffff; --card2:#faf0f2; --line:#f0dede;
  --pink:#e86a8a; --pink2:#d4557a; --txt:#3a3338; --sub:#8a7a80; --muted:#b8a8ae;
  --ok:#5fd08a;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:#f5ecec; color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",sans-serif;
  display:flex; justify-content:center; min-height:100vh;
}
.phone{
  width:100%; max-width:480px; min-height:100vh; background:var(--bg);
  display:flex; flex-direction:column; padding-bottom:24px; box-shadow:0 0 40px rgba(0,0,0,.05);
}

/* 顶栏 */
.topbar{
  display:flex; align-items:center; gap:10px; padding:16px 18px 10px;
}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#e86a8a,#d4557a);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;
}
.brand{display:flex;flex-direction:column;line-height:1.15}
.brand b{font-size:16px;color:var(--txt)}
.brand small{color:var(--sub);font-size:11px}
.privacy{
  margin-left:auto;font-size:11px;color:var(--sub);
  border:1px solid var(--line);padding:5px 10px;border-radius:999px;background:#fff;
}
.privacy.on{color:var(--ok);border-color:rgba(95,208,138,.4)}
.credits-pill{
  font-size:11px;color:var(--ok);border:1px solid rgba(95,208,138,.4);
  padding:5px 10px;border-radius:999px;background:#fff;
}

/* 步骤条 */
.steps{
  list-style:none;display:flex;gap:6px;padding:6px 18px 14px;margin:0;
}
.steps li{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;
  font-size:11px;color:var(--muted);
}
.steps li i{
  width:26px;height:26px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;font-style:normal;font-size:12px;
}
.steps li.active{color:var(--pink2)}
.steps li.active i{background:var(--pink);color:#fff;border-color:var(--pink);font-weight:700}
.steps li.done{color:var(--ok)}
.steps li.done i{background:rgba(95,208,138,.1);border-color:var(--ok);color:var(--ok)}

main{flex:1;padding:0 18px}
.panel{display:flex;flex-direction:column;gap:14px}
.hidden{display:none !important}

/* 上传卡片 */
.upload-card{
  position:relative;display:block;border-radius:18px;overflow:hidden;
  background:var(--card);border:1.5px dashed var(--line);
  aspect-ratio:4/3;cursor:pointer;transition:.2s;
  box-shadow:0 2px 12px rgba(232,106,138,.06);
}
.upload-card:active{transform:scale(.985)}
.upload-card.filled{border-style:solid;border-color:var(--pink)}
.uc-empty{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:6px;text-align:center;padding:18px;
}
.uc-empty b{font-size:16px;color:var(--txt)}
.uc-empty small{color:var(--sub);font-size:12px;line-height:1.5}
.uc-empty em{
  margin-top:8px;font-style:normal;font-size:12px;color:var(--pink);
  background:rgba(232,106,138,.1);padding:6px 14px;border-radius:999px;
}
.uc-preview{position:absolute;inset:0;display:none}
.uc-preview img{width:100%;height:100%;object-fit:cover;display:block}
.upload-card.filled .uc-preview{display:block}
.upload-card.filled .uc-empty{opacity:0;pointer-events:none}

/* 拍照/相册 选择行 */
.pick-row{display:flex;gap:10px;margin-top:6px}
.pick{
  border:0;border-radius:999px;padding:9px 18px;font-size:13px;cursor:pointer;
}
.pick-cam{background:linear-gradient(135deg,#e86a8a,#d4557a);color:#fff;font-weight:700}
.pick-album{background:#f5ecec;color:var(--txt)}

/* 甲型选择 */
.extend-row{display:flex;flex-direction:column;gap:8px}
.extend-label{font-size:13px;color:var(--sub)}
.extend-label small{color:var(--muted)}
.extend-opts{display:flex;gap:10px}
.opt{
  flex:1;border:1.5px solid var(--line);background:var(--card);
  color:var(--txt);border-radius:12px;padding:12px;font-size:14px;cursor:pointer;
  box-shadow:0 2px 8px rgba(232,106,138,.05);
}
.opt.active{border-color:var(--pink);background:rgba(232,106,138,.08);color:var(--pink2);font-weight:700}

.note{
  font-size:12.5px;color:var(--sub);line-height:1.6;margin:2px 0 0;text-align:center;
}
.note b{color:var(--pink2)}

/* 按钮 */
.primary{
  border:0;border-radius:14px;padding:15px;display:flex;flex-direction:column;
  align-items:center;gap:3px;background:linear-gradient(135deg,#e86a8a,#d4557a);color:#fff;cursor:pointer;
  font-size:16px;font-weight:700;transition:.15s;box-shadow:0 4px 14px rgba(232,106,138,.3);
}
.primary:disabled{background:#e8d8dc;color:#b8a8ae;cursor:not-allowed;box-shadow:none}
.primary i{font-style:normal;font-size:11px;font-weight:500;opacity:.85}
.primary:not(:disabled):active{transform:scale(.98)}
.ghost{
  border:1px solid var(--line);background:#fff;color:var(--txt);
  border-radius:12px;padding:12px;font-size:14px;cursor:pointer;
}

/* loading */
.loading-box{
  background:var(--card);border-radius:18px;padding:46px 24px;
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  box-shadow:0 4px 20px rgba(232,106,138,.08);
}
.spinner{
  width:46px;height:46px;border-radius:50%;
  border:3px solid var(--line);border-top-color:var(--pink);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-box b{font-size:16px;margin-top:6px;color:var(--txt)}
.loading-box span{color:var(--sub);font-size:12.5px;line-height:1.6}
.pct{color:var(--muted);font-size:12px;margin-top:4px}

/* 结果 */
.result-frame{
  position:relative;border-radius:18px;overflow:hidden;background:#fff;
  border:1px solid var(--line);aspect-ratio:4/5;
  box-shadow:0 4px 20px rgba(232,106,138,.1);
}
.result-frame img{width:100%;height:100%;object-fit:contain;display:block}
.vs-toggle{
  position:absolute;bottom:12px;left:50%;transform:translateX(-50%);
  display:flex;background:rgba(58,51,56,.75);backdrop-filter:blur(6px);
  border-radius:999px;padding:3px;
}
.vs-toggle button{
  border:0;background:transparent;color:#fff;padding:7px 18px;font-size:13px;
  border-radius:999px;cursor:pointer;
}
.vs-toggle button.active{background:var(--pink);color:#fff;font-weight:700}
.result-actions{display:flex;flex-direction:column;gap:10px}

.footer{
  text-align:center;color:var(--muted);font-size:11px;padding:18px 24px 0;line-height:1.5;
}

/* toast */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);
  background:rgba(58,51,56,.9);color:#fff;padding:10px 18px;border-radius:999px;
  font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:99;white-space:nowrap;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}