:root{
  --pf-accent:#58a639;
  --pf-accent-dark:#46842d;
  --pf-text:#23384d;
  --pf-muted:#6b7a88;
  --pf-border:#d7e0e5;
  --pf-soft:#f5faf2;
  --pf-bg:#ffffff;
  --pf-danger:#b42318;
  --pf-danger-bg:#fef3f2;
  --pf-radius-xl:26px;
  --pf-radius-lg:18px;
  --pf-radius-md:14px;
  --pf-shadow:0 16px 40px rgba(20, 36, 56, .08);
}

#pf-form-app *{
  box-sizing:border-box;
}

.pf-form-shell{
  max-width:920px;
  margin:0 auto;
  color:var(--pf-text);
  font:inherit;
}

.pf-form-steps{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:10px;
  margin-bottom:18px;
}

.pf-form-step{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  text-align:center;
}

.pf-form-step__circle{
  width:52px;
  height:52px;
  border-radius:999px;
  border:2px solid var(--pf-border);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:18px;
  background:#fff;
}

.pf-form-step__label{
  font-size:14px;
  line-height:1.2;
  font-weight:700;
  color:var(--pf-muted);
}

.pf-form-step--active .pf-form-step__circle{
  background:var(--pf-accent);
  border-color:var(--pf-accent);
  color:#fff;
}

.pf-form-step--active .pf-form-step__label{
  color:var(--pf-text);
}

.pf-form-step--done .pf-form-step__circle{
  background:var(--pf-soft);
  border-color:var(--pf-accent);
  color:var(--pf-accent-dark);
}

.pf-form-topback{
  margin-bottom:20px;
}

.pf-backlink{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--pf-text);
  text-decoration:none;
  font-weight:700;
  font-size:16px;
}

.pf-card{
  background:var(--pf-bg);
  border:1px solid var(--pf-border);
  border-radius:var(--pf-radius-xl);
  overflow:hidden;
  box-shadow:var(--pf-shadow);
}

.pf-card__header{
  display:flex;
  gap:16px;
  align-items:center;
  padding:24px 28px;
  border-bottom:1px solid var(--pf-border);
  background:linear-gradient(180deg, rgba(88,166,57,.06) 0%, rgba(88,166,57,0) 100%);
}

.pf-card__badge{
  width:56px;
  height:56px;
  border-radius:999px;
  background:var(--pf-accent);
  color:#ffffff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
  font-size:24px;
  flex:0 0 auto;
}

.pf-card__title{
  margin:0;
  font-size:34px;
  line-height:1.1;
  font-weight:900;
  color:var(--pf-text);
}

.pf-card__sub{
  margin-top:6px;
  color:var(--pf-muted);
  font-size:17px;
  line-height:1.45;
}

.pf-fields,
.pf-section{
  padding:22px 28px;
}

.pf-fields{
  display:grid;
  gap:18px;
}

.pf-fields--address{
  grid-template-columns:1fr 180px;
}

.pf-field{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.pf-label{
  font-size:18px;
  font-weight:800;
  color:var(--pf-text);
}

.pf-input{
  width:100%;
  min-height:62px;
  padding:16px 18px;
  border:2px solid #b9d3db;
  border-radius:12px;
  background:#fff;
  color:var(--pf-text);
  font:inherit;
  font-size:20px;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}

.pf-input:focus{
  border-color:var(--pf-accent);
  box-shadow:0 0 0 4px rgba(88,166,57,.12);
}

.pf-input.is-error{
  border-color:var(--pf-danger);
  box-shadow:0 0 0 4px rgba(180,35,24,.08);
}

.pf-select{
  appearance:none;
  background-image:
    linear-gradient(45deg, transparent 50%, #69808f 50%),
    linear-gradient(135deg, #69808f 50%, transparent 50%);
  background-position:
    calc(100% - 24px) calc(50% - 4px),
    calc(100% - 16px) calc(50% - 4px);
  background-size:8px 8px, 8px 8px;
  background-repeat:no-repeat;
  padding-right:48px;
}

.pf-hint{
  font-size:14px;
  line-height:1.45;
  color:var(--pf-muted);
}

.pf-error{
  min-height:20px;
  font-size:14px;
  color:var(--pf-danger);
  font-weight:700;
}

.pf-section + .pf-section{
  border-top:1px solid var(--pf-border);
}

.pf-section__title{
  font-size:22px;
  font-weight:900;
  color:var(--pf-text);
  margin-bottom:14px;
}

.pf-radio-group{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.pf-radio-card{
  position:relative;
  display:flex;
  align-items:center;
  min-height:58px;
  padding:0 48px 0 18px;
  border:2px solid var(--pf-border);
  border-radius:999px;
  cursor:pointer;
  background:#fff;
  font-size:18px;
  font-weight:700;
  color:var(--pf-text);
}

.pf-radio-card input{
  position:absolute;
  opacity:0;
  pointer-events:none;
}

.pf-radio-card:has(input:checked){
  border-color:var(--pf-accent);
  background:var(--pf-soft);
  color:var(--pf-accent-dark);
}

.pf-radio-card:has(input:checked)::after{
  content:"✓";
  position:absolute;
  right:18px;
  top:50%;
  transform:translateY(-50%);
  color:#000;
  font-size:18px;
  font-weight:900;
  line-height:1;
}

.pf-alert{
  margin-top:14px;
  padding:14px 16px;
  border-radius:14px;
  font-size:16px;
  font-weight:800;
}

.pf-alert--danger{
  background:var(--pf-danger-bg);
  color:var(--pf-danger);
  border:1px solid #fecdca;
}

.pf-info{
  margin-top:14px;
  padding:14px 16px;
  border-radius:14px;
  background:#f8fafc;
  border:1px solid var(--pf-border);
  color:var(--pf-muted);
  font-size:16px;
  line-height:1.5;
}

.pf-underpad-box{
  margin-top:14px;
  display:grid;
  grid-template-columns:120px 1fr;
  gap:16px;
  align-items:center;
  padding:16px;
  border:1px solid var(--pf-border);
  border-radius:18px;
  background:#fafdf8;
}

.pf-underpad-box__img{
  width:120px;
  height:120px;
  object-fit:cover;
  border-radius:14px;
  border:1px solid var(--pf-border);
  background:#fff;
}

.pf-underpad-box__text{
  font-size:17px;
  line-height:1.45;
  font-weight:700;
  color:var(--pf-text);
}

.pf-sign-wrap{
  display:flex;
  flex-direction:column;
  gap:12px;
}

.pf-sign-canvas{
  width:100%;
  height:220px;
  border:2px dashed #b9d3db;
  border-radius:18px;
  background:#fff;
  touch-action:none;
  display:block;
}

.pf-sign-actions{
  display:flex;
  justify-content:flex-start;
}

.pf-checkline{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:17px;
  line-height:1.5;
  font-weight:700;
}

.pf-checkline input{
  width:22px;
  height:22px;
  margin-top:3px;
  accent-color:var(--pf-accent);
}

.pf-checkline a{
  color:var(--pf-accent-dark);
  text-decoration:underline;
  text-decoration-thickness:2px;
}

.pf-form-actions{
  display:flex;
  justify-content:space-between;
  gap:14px;
  margin-top:22px;
}

.pf-btn{
  min-height:58px;
  padding:14px 20px;
  border-radius:999px;
  border:2px solid var(--pf-border);
  background:#fff;
  color:var(--pf-text);
  font:inherit;
  font-size:18px;
  font-weight:800;
  text-decoration:none;
  cursor:pointer;
  transition:transform .12s ease, background .12s ease, border-color .12s ease;
}

.pf-btn:hover{
  transform:translateY(-1px);
}

.pf-btn:disabled{
  opacity:.45;
  pointer-events:none;
}

.pf-btn--primary{
  background:var(--pf-accent);
  border-color:var(--pf-accent);
  color:#fff;
}

.pf-btn--primary:hover{
  background:var(--pf-accent-dark);
  border-color:var(--pf-accent-dark);
}

.pf-btn--ghost{
  background:#fff;
}

@media (max-width: 900px){
  .pf-form-steps{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }

  .pf-card__title{
    font-size:28px;
  }

  .pf-fields--address{
    grid-template-columns:1fr;
  }

  .pf-underpad-box{
    grid-template-columns:1fr;
  }

  .pf-underpad-box__img{
    width:100%;
    max-width:220px;
    height:auto;
  }
}

@media (max-width: 640px){
  .pf-form-shell{
    max-width:100%;
  }

  .pf-form-steps{
    display:flex;
    gap:10px;
    margin-bottom:16px;
    padding:4px 2px 10px;
    overflow-x:auto;
    overflow-y:hidden;
    flex-wrap:nowrap;
    scroll-snap-type:x proximity;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }

  .pf-form-steps::-webkit-scrollbar{
    display:none;
  }

  .pf-form-step{
    flex:0 0 auto;
    min-width:72px;
    gap:6px;
    scroll-snap-align:start;
  }

  .pf-form-step__circle{
    width:38px;
    height:38px;
    font-size:14px;
    border-width:2px;
  }

  .pf-form-step__label{
    font-size:11px;
    line-height:1.15;
    font-weight:700;
    max-width:72px;
    word-break:break-word;
  }

  .pf-card__header,
  .pf-fields,
  .pf-section{
    padding:18px;
  }

  .pf-card__badge{
    width:48px;
    height:48px;
    font-size:20px;
  }

  .pf-card__title{
    font-size:24px;
  }

  .pf-card__sub{
    font-size:15px;
  }

  .pf-label{
    font-size:16px;
  }

  .pf-input{
    min-height:56px;
    font-size:18px;
  }

  .pf-radio-group{
    flex-direction:column;
  }

  .pf-radio-card{
    width:100%;
    border-radius:16px;
    min-height:56px;
  }

  .pf-form-actions{
    flex-direction:column;
  }

  .pf-btn{
    width:100%;
    font-size:17px;
  }
}