#grabackbtn {
  position: absolute;
  top: 28px;
  right: 80px;
  z-index: 3;
  font-size: 0.875rem;   /* 14px ≈ 0.875rem */
  line-height: 1.85;     /* 26 ÷ 14 ≈ 1.85，使用比例代替固定像素 */
  height: 1.625rem;      /* 26px ÷ 16px = 1.625rem */
  width: 5rem;           /* 80px ÷ 16px = 5rem */
  background: #fff;
  border-radius: 0.5rem; /* 8px ÷ 16px = 0.5rem */
  border: 1px solid #ccc;
  text-align: center;
}
/* 通用文字色 */
.fcolorred{color: red;}
.fcolor333333 { color: #333333; }
.bgcolor41a2da { background: #41a2da !important; }

/* 表單外框 */
.formwrap {
  width: 600px;
  max-width: 100%;
  margin: 0 auto;
}

/* 表單每一行 */
.formline {
  position: relative;
  margin: 15px 0 !important; /* 強制上下間距 */
}

.formline span {
  display: inline-block;
  float: left;
}

.formline span:nth-child(1) {
  width: 25%;
  text-align: right;
  margin-right: 3%;
}

.formline span:nth-child(2) {
  width: 72%;
}

/* 輸入欄位 */
.formline span input,
.formline span select,
.formline span textarea {
  background: #fff;
  border: 1px solid #ccc;
  font-size: 0.875rem; /* 相對單位 */
}

.formline span input,
.formline span select {
  width: 90%;
  padding: 0 5%;
  height: 32px;
}

.formline span textarea {
  width: 90%;
  padding: 0 5%;
  height: 200px;
}

/* 「我不是機器人」與送出按鈕置中 */
.formline.center {
  text-align: center !important;   /* 強制置中 */
  margin: 20px 0 !important;       /* 強制間距 */
}

/* 驗證碼 */
#capchk {
  display: inline-block;
  padding: 0 12px;
  border: 2px solid #5599ff;
  border-radius: 5px;
  font-size: 0.875rem;
  line-height: 32px;
  color: #5599ff;
  font-weight: bold;
  cursor: pointer;
}

#capchk i {
  font-size: 1rem;
  margin-right: 6px;
  color: #5599ff;
}

/* 送出按鈕 */
#submit {
  width: 120px;
  background: #48d2ff;
  border-radius: 5px;
  height: 36px;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  color: #fff;
}
/* 1000 以下顯示 平板版本 */
@media screen and (max-width: 1000px) {
  #grabackbtn {
    position: absolute;
    top: 60px;
    right: 10px;
    z-index: 3;
    font-size: 0.875rem;  
    line-height: 1.85;    
    height: 1.625rem;     
    width: 5rem;          
    background: #fff;
    border-radius: 0.5rem;
    border: 1px solid #ccc;
    text-align: center;
  }
}