.ABOUT-US {
  background-color: transparent;
  display: flex;
  flex-direction: row;
  justify-content: center;
  min-height: 100vh;
}

.ABOUT-US .div {
  width: 1440px;
  height: auto; 
  position: relative;
}

@media (min-width: 768px) and (max-width: 1399px) {
  .ABOUT-US {
    display: flex;
    justify-content: center;
    height: auto; 
}
  .ABOUT-US .scale-wrapper {
    transform-origin: top center;
    zoom: 0.9; 
    display: inline-block;
    position: relative;
  }
}

@media (max-width: 768px) {
  .ABOUT-US .div {
    width: 100% !important;
    max-width: 100% !important; /* 防止超過螢幕 */
    position: relative !important;
  }

  html, body {
  overflow-x: hidden;
  min-height: 100vh;
}
}

.ABOUT-US .overlap {
  position: relative;
  width: 100%;
  height: auto;  
  top: 80px;
  left: 0;
  background-color: #ffffff;
  z-index: 0;
}

.ABOUT-US .image {
  display: block;
  width: 100%;    /* 佔滿父容器寬度 */
  height: auto;   /* 等比例縮放 */
}

@media (max-width: 768px) {
.ABOUT-US .image {
    width: 200%;             /* 放大圖片，方便只顯示左半邊 */
    height: auto;            /* 等比縮放 */
    transform-origin: left;  /* 從左邊開始顯示 */
}
}


.ABOUT-US .view-6 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: absolute;
  top: 161px;
  left: 1219px;
}

.ABOUT-US .text-wrapper-10 {
  position: relative;
  width: 80px;
  height: 20px;
  margin-top: -1.00px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .view-7 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: absolute;
  top: 201px;
  left: 1219px;
}

.ABOUT-US .view-8 {
  display: inline-flex;
  align-items: flex-start;
  gap: 6px;
  position: absolute;
  top: 241px;
  left: 1219px;
}


.ABOUT-US .view-9 {
  position: relative;  /* 保持 relative 就好 */
  width: 100%;
  height: auto;        /* 自動依內容撐高 */
  margin: 80px auto;     /* 整個區塊上下間距 */
  box-sizing: border-box;
}

.ABOUT-US .view-10 {
  display: flex;
  flex-direction: column;
  width: 100%;         /* 撐滿可用寬度 */
  max-width: 1080px;   /* 控制內容區域 */
  gap: 42px;
  margin-top: 40px;    /* 與上方 AU/line 的距離 */
  margin-left: 100px;   /* 往右移動 */
  position: relative;  /* 移除 absolute */
}

.ABOUT-US .element {
  width: fit-content;
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: bold;
  color: #0167b5;
  font-size: 30px;
  letter-spacing: 3px;
  line-height: 40px;
}

.ABOUT-US .text-wrapper-11-1 {
  align-self: stretch;
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #6a6a6a;
  font-size: 20px;
  letter-spacing: 2px;
  line-height: 30px;
}

.ABOUT-US .AU {
  display: flex;
  flex-direction: column;
  width: 300px;
  gap: 16px;
  margin: 80px 0 20px 130px;  /* 上 右 下 左 */
  position: relative;        /* 保持相對定位 */
}

.ABOUT-US .text-wrapper-12-1 {
  position: relative;
  align-self: stretch;
  margin-top: -1px;
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #0167b5;
  font-size: 20px;
  letter-spacing: 4px;
  line-height: normal;
}

.ABOUT-US .text-wrapper-13-1 {
  position: relative;
  align-self: stretch;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 40px;
  letter-spacing: 0;
  line-height: normal;
}

.ABOUT-US .line-2-1 {
  position: absolute;
  width: 2px;
  height: 80px;
  top: 50%;
  transform: translateY(-50%);
  left: -20px;    /* ✅ 可調整相對距離 */
  background-color: #0167b5;
}

@media (max-width: 768px) {
  .ABOUT-US .AU {
    margin: 50px auto 20px;
    transform: scale(0.8); /* ✅ 依比例縮小 */
    transform-origin: center top;
    width: 100%;           /* 避免固定 300px */
    text-align: left;     /* 標題置中 */
  }

  .ABOUT-US .view-10 {
    margin-left: auto;     /* 取消桌機版的左推 */
    margin-right: auto;    /* 水平置中 */
    padding: 0 30px;       /* 保持左右邊距 */
  }

  .ABOUT-US .element {
    width: 100%;              /* 撐滿容器寬度 */
    text-align: left;        
    font-size: 22px;  
    line-height: 1.5;
    white-space: normal;       /* ✅ 允許換行 */
  }

  .ABOUT-US .text-wrapper-11-1 {
    width: 100%;              /* 撐滿容器 */
    text-align: left;       
    font-size: 18px;
    line-height: 1.6;
    white-space: normal;      /* ✅ 允許換行 */
  }
}

.ABOUT-US .view-11 {
  display: flex;
  align-items: center;   /* 垂直置中 */
  justify-content: center; /* 水平置中 */
  gap: 20px;  /* 改這裡就能調整內容間距 */
  padding: 20px;
  background-color: #173268;
  position: relative;
}

.ABOUT-US .text-wrapper-14-1,
.ABOUT-US .text-wrapper-15 {
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  font-size: 16px;
  line-height: 40px;
  letter-spacing: 1.6px;
  white-space: nowrap;
  text-align: center;
}

.ABOUT-US .text-wrapper-14-1 {
  color: #ffffff;
}

.ABOUT-US .text-wrapper-15 {
  color: #00f6ff;
}

@media (max-width: 768px) {
.ABOUT-US .view-11 {
    gap: 10px;       /* 間距縮小 */
    padding: 10px;   /* 內距縮小 */
  }

.ABOUT-US .text-wrapper-14-1,
.ABOUT-US .text-wrapper-15 {
    font-size: 12px;   /* 縮小字體 */
    line-height: 28px; /* 調整行高 */
    letter-spacing: 1px;
  }
}

.ABOUT-US .view-12 {
  position: relative;
  width: 100%;
  margin-top: 50px;    /* 與上方區塊的距離 */
  background-image: url(./img/image-2.png);
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column; /* 由上而下排列 AU-2 與 overlap-2 */
}

.ABOUT-US .AU-2 {
  display: flex;
  flex-direction: column;
  width: 300px;
  gap: 16px;
  margin: 80px 0 20px 130px;  /* 上 右 下 左 */
  position: relative;        /* 保持相對定位 */
}

.ABOUT-US .text-wrapper-34 {
  position: relative;
  width: fit-content;
  margin-top: -1.00px;
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #0167b5;
  font-size: 24px;
  letter-spacing: 4.80px;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .text-wrapper-35 {
  position: relative;
  width: 160px;
  margin-bottom: -1.00px;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 40px;
  letter-spacing: 0;
  line-height: normal;
}

.ABOUT-US .line-12 {
  position: absolute;
  width: 2px;
  height: 80px;
  top: 50%;
  transform: translateY(-50%);
  left: -20px;    /* ✅ 可調整相對距離 */
  background-color: #0167b5;
}

@media (max-width: 768px) {

  .ABOUT-US .AU-2 {
    margin: 50px auto 20px;
    transform: scale(0.8); /* ✅ 依比例縮小 */
    transform-origin: center top;
    width: 100%;          
    text-align: left;    
  }
}

.ABOUT-US .overlap-2-1 {
  width: 800px;
  min-height: 4000px;
  margin: 50px auto;   /* 水平置中 */
  position: relative;
}

.ABOUT-US .line-3-1 {
  position: absolute;
  top: 0;
  left: 13.5%;   /* ✅ 改百分比，會隨容器寬度縮放 */
  width: 1px;
  height: 100%;
  background-color: #a2a2a2;
  z-index: 0;
}

.ABOUT-US .element-17-1 {
  position: absolute;
  width: 585px;
  height: 200px;
  top: 240px;
  left: 0;
}

.ABOUT-US .element-1-1 {
  top: 3900px;
  left: 0;
  position: absolute;
  width: 363px;
  height: 72px;
}

.ABOUT-US .m-1 {
  position: absolute;
  top: 25px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

.ABOUT-US .line-4-1 {
  position: absolute; /* 絕對定位 */
  top: 12px;          /* 距離容器上方10px */
  left: 19px;         /* 距離容器左方20px */
  width: 30px;        /* 線條長度 */
  height: 0.8px;        /* 線條粗細 */
  background-color: #0167b5;
}

.ABOUT-US .line-4-1 .ellipse-1 {
  position: absolute;
  top: 50%;                   /* 垂直置中 */
  left: 100%;                 /* 緊貼在線的右邊 */
  width: 6px;
  height: 6px;
  background-color: #0167b5;
  border-radius: 50%;         /* 圓形 */
  transform: translate(0, -50%); /* 垂直置中微調 */
}


.ABOUT-US .ellipse-wrapper {
  position: absolute;
  width: 24px;
  height: 24px;
  top: 0;
  left: 0;
  background-color: #0167b5;
  border-radius: 12px;
}

.ABOUT-US .ellipse {
  position: relative;
  width: 10px;
  height: 10px;
  top: 7px;
  left: 7px;
  background-color: #ffffff;
  border-radius: 5px;
}

.ABOUT-US .element-2-1 {
  position: absolute;
  width: 431px;
  height: 30px;
  top: 3800px;
  left: 0;
}

.ABOUT-US .m-2 {
  position: absolute;
  top: 5px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}


.ABOUT-US .text-wrapper-20 {
  top: 0;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .element-3-1 {
  position: absolute;
  width: 391px;
  height: 30px;
  top: 3700px;
  left: 0;
}


.ABOUT-US .element-5-1 {
  position: absolute;
  width: 425px;
  height: 200px;
  top: 3080px;
  left: 0;
}

.ABOUT-US .m-3 {
  position: absolute;
  top: 58px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

.ABOUT-US .frame-4 {
  display: flex;
  flex-direction: column;
  width: 255px;
  align-items: flex-start;
  justify-content: center;
  gap: 11px;
  position: absolute;
  top: 0;
  left: 168px;
}


.ABOUT-US .overlap-wrapper {
  position: absolute;
  width: 6px;
  height: 70px;
  top: 8px;
  left: 141px;
}

.ABOUT-US .element-9-1 {
  position: absolute;
  width: 683px;
  height: 71px;
  top: 2370px;
  left: 0;
}

.ABOUT-US .element-16-1 {
  position: absolute;
  width: 585px;
  height: 200px;
  top: 590px;
  left: 0;
}

.ABOUT-US .div-wrapper-3 {
  position: absolute;
  top: 10px;
  left: 143px;
  width: 6px;
  height: 60px; /* 調整總高度，與文字對應 */
}

/* 垂直線 */
.ABOUT-US .line-9 {
  position: absolute;
  height: 60px;
  border-left: 1px solid #0167b5;
  left: 0.5px;
  top: 0;
}

/* 文字 */
.ABOUT-US .frame-6 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap:30px;                     /* 控制每段間距 */
  width: 720px;
  height: auto;                 /* 可讓內容自然撐開 */
  }

.ABOUT-US .text-wrapper-25 {
  top: 20px;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .element-10-1 {
  position: absolute;
  width: 471px;
  height: 30px;
  top: 2210px;
  left: 0;
}


.ABOUT-US .element-15-1 {
  position: absolute;
  width: 507px;
  height: 80px;
  top: 930px;
  left: 0;
}

/* 文字 */
.ABOUT-US .frame-1 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap:30px;                     /* 控制每段間距 */
  width: 720px;
  height: auto;                 /* 可讓內容自然撐開 */
  }


.ABOUT-US .element-6-1 {
  position: absolute;
  width: 613px;
  height: 120px;
  top: 2860px;
  left: 0;
}

.ABOUT-US .frame-7 {
  display: flex;
  flex-direction: column;
  width: 446px;
  align-items: flex-start;
  justify-content: center;
  gap: 14px;
  position: absolute;
  top: 0;
  left: 165px;
}

.ABOUT-US .text-wrapper-28 {
  top: 55px;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}


.ABOUT-US .element-11-1 {
  position: absolute;
  width: 803px;
  height: 201px;
  top: 1870px;
  left: 0;
}

.ABOUT-US .m-8 {
  position: absolute;
  top: 118px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

/* GPT教的 */
/* 容器 */
.ABOUT-US .div-wrapper {
  position: absolute;
  top: 10px;
  left: 143px;
  width: 6px;
  height: 240px; /* 調整總高度，與文字對應 */
}

/* 包含線與點 */
.ABOUT-US .overlap-4 {
  position: relative;
  height: 100%;
}

/* 垂直線 */
.ABOUT-US .line-10 {
  position: absolute;
  height: 240px;
  border-left: 1px solid #0167b5;
  left: 0.5px;
  top: 0;
}

/* 圓點 */
.ABOUT-US .ellipse-0 {
  position: absolute;
  left: -2px;
  width: 6px;
  height: 6px;
  background-color: #0167b5;
  border-radius: 3px;
  transform: translateY(-50%);
}

/* 文字 */
.ABOUT-US .frame-8 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap: 37px;                     /* 控制每段間距 */
  width: 800px;
  height: auto;                 /* 可讓內容自然撐開 */
}

.ABOUT-US .text {
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: 400;
  font-size: 20px;
  color: #6a6a6a;
}
/* GPT教的到這 */


.ABOUT-US .text-wrapper-29 {
  top: 115px;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .element-12-1 {
  position: absolute;
  width: 555px;
  height: 141px;
  top: 1590px;
  left: 0;
}

.ABOUT-US .m-9 {
  position: absolute;
  top: 85px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

/* 容器 */
.ABOUT-US .div-wrapper-1 {
  position: absolute;
  top: 10px;
  left: 143px;
  width: 6px;
  height: 180px; /* 調整總高度，與文字對應 */
}


/* 垂直線 */
.ABOUT-US .line-11 {
  position: absolute;
  height: 180px;
  border-left: 1px solid #0167b5;
  left: 0.5px;
  top: 0;
}

/* 文字 */
.ABOUT-US .frame-9 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap: 37px;                     /* 控制每段間距 */
  width: 720px;
  height: auto;                 /* 可讓內容自然撐開 */
}

.ABOUT-US .text-wrapper-30 {
  top: 80px;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .element-13-1 {
  position: absolute;
  width: 796px;
  height: 93px;
  top: 1370px;
  left: 0;
}

/* 容器 */
.ABOUT-US .div-wrapper-2 {
  position: absolute;
  top: 10px;
  left: 143px;
  width: 6px;
  height: 120px; /* 調整總高度，與文字對應 */
}

/* 垂直線 */
.ABOUT-US .line-7 {
  position: absolute;
  height: 120px;
  border-left: 1px solid #0167b5;
  left: 0.5px;
  top: 0;
}

/* 文字 */
.ABOUT-US .frame-10 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap: 35px;                     /* 控制每段間距 */
  width: 720px;
  height: auto;                 /* 可讓內容自然撐開 */
}

.ABOUT-US .element-14-1 {
  position: absolute;
  width: 716px;
  height: 87px;
  top: 1090px;
  left: 0;
}

.ABOUT-US .m-10 {
  position: absolute;
  top: 25px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}


.ABOUT-US .element-8-1 {
  position: absolute;
  width: 525px;
  height: 50px;
  top: 2590px;
  left: 0;
}

.ABOUT-US .m-11 {
  position: absolute;
  top: 25px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

.ABOUT-US .element-4-1 {
  position: absolute;
  width: 556px;
  height: 400px;
  top: 3300px;
  left: 0;
}


.ABOUT-US .m-12 {
  position: absolute;
  top: 150px;     /* 調整上下位置 */
  left: 95px;   /* 調整左右位置 */
}

/* 容器 */
.ABOUT-US .div-wrapper-4 {
  position: absolute;
  top: 10px;
  left: 143px;
  width: 6px;
  height: 300px; /* 調整總高度，與文字對應 */
}


/* 垂直線 */
.ABOUT-US .line-13 {
  position: absolute;
  height: 300px;
  border-left: 1px solid #0167b5;
  left: 0.5px;
  top: 0;
}

/* 文字 */
.ABOUT-US .frame-3 {
  position: absolute;
  top: 10px;
  left: 162px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;  /* 改掉平均分布 */
  gap: 37px;                     /* 控制每段間距 */
  width: 720px;
  height: auto;                 /* 可讓內容自然撐開 */
}

.ABOUT-US .text-wrapper-33 {
  top: 145px;
  position: absolute;
  left: 0;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 30px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .element-7-1 {
  position: absolute;
  width: 391px;
  height: 30px;
  top: 2750px;
  left: 0;
}

.ABOUT-US .element-18-1 {
  position: absolute;
  width: 796px;
  height: 93px;
  top: 20px;
  left: 0;
}

@media (max-width: 768px) {
  .ABOUT-US .view-12 {
    overflow: visible;   /* ✅ 不要裁切內容 */
    display: flex;
    align-items: flex-start; /* 保持左對齊 */
  }

  .ABOUT-US .overlap-2-1 {
    width: 100%;              /* 撐滿螢幕 */
    max-width: 100%;          /* 避免超出 */
    box-sizing: border-box;
    position: relative;
    margin: 0 auto; 
  }

  .ABOUT-US .line-3-1 {
    left: 20%;   /* ✅ 手機版再微調位置 */
  }

  .ABOUT-US .frame-1,
  .ABOUT-US .frame-3,  
  .ABOUT-US .frame-6,  
  .ABOUT-US .frame-8,
  .ABOUT-US .frame-9,
  .ABOUT-US .frame-10{
    position: relative;    /* 移除 absolute，避免固定位置影響布局 */
    top: 10px;
    left: 130px;
    max-width: 100%;       /* 避免超過螢幕 */
    box-sizing: border-box;
    gap: 20px;  
  }

.ABOUT-US .text {      
  line-height: 1.5;      
  white-space: normal;   
  word-wrap: break-word; 
  word-break: break-word;
  position: relative;    
  padding-left: 20px;    /* 預留空間給圓點 */
}

.ABOUT-US .text::before {
  content: "";
  position: absolute;
  left: 0;                     /* 靠左 */
  top: 0.5em;                   /* 對齊第一行文字中線 */
  width: 8px;
  height: 8px;
  background-color: #0167b5;
  border-radius: 50%;
}

  /* 文字或圖片自動縮小 */ 
  .ABOUT-US .element-1-1,
  .ABOUT-US .element-2-1,
  .ABOUT-US .element-3-1,
  .ABOUT-US .element-4-1,
  .ABOUT-US .element-5-1,
  .ABOUT-US .element-6-1, 
  .ABOUT-US .element-7-1,
  .ABOUT-US .element-8-1,  
  .ABOUT-US .element-9-1,
  .ABOUT-US .element-10-1,
  .ABOUT-US .element-11-1,
  .ABOUT-US .element-12-1,
  .ABOUT-US .element-13-1,
  .ABOUT-US .element-14-1,
  .ABOUT-US .element-15-1,
  .ABOUT-US .element-16-1,
  .ABOUT-US .element-17-1,
  .ABOUT-US .element-18-1 {
    transform: scale(0.6);   /* 保持繼承父層縮放比例 */
    width: 100%;              /* ✅ 撐滿容器寬度（含 padding） */
    max-width: 100%;          /* 不超出容器 */
    margin: 0 -50px ;
  }

  .ABOUT-US .m-8,
  .ABOUT-US .div-wrapper,
  .ABOUT-US .m-1,
  .ABOUT-US .div-wrapper-3,
  .ABOUT-US .m-2,
  .ABOUT-US .m-3,
  .ABOUT-US .div-wrapper-2,
  .ABOUT-US .m-9,
  .ABOUT-US .div-wrapper-1,
  .ABOUT-US .m-12,
  .ABOUT-US .div-wrapper-4
  {
    display: none;
  }
}


/* 固定標題列 */
.ABOUT-US .title {
  position: fixed;
  width: 1440px;
  height: 80px;
  background-color: #ffffff;
  z-index: 10;
}

/* 固定標題列用 */
.ABOUT-US .head-rectangle {
  position: absolute;
  width: 100%;
  height: 2px;
  top: 80px;
  left: 0;
  box-shadow: 0px 2px 3px 1px #00000040;
}

/* 漢堡按鈕 */
.ABOUT-US .hamburger {
  display: none;
  font-size: 28px;
  cursor: pointer;
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 10000;
}

/* 固定標題列用 */
.ABOUT-US .navbar {
  display: flex;
  width: 750px;
  height: 50px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 8px;
  position: absolute;
  top: 15px;
  left: 580px;
}

/* 預設隱藏（桌機版不顯示） */
.ABOUT-US .navbar .nav-logo {
  display: none;
}

/* 下拉選單用要改的 */
.ABOUT-US .text-wrapper-67 {
  position: relative;
  width: 80px;
  height: 20px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #173268;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

/* 下拉選單的容器 */
.ABOUT-US .dropdown {
  position: relative;
  display: inline-block;
}

/* 下拉選單內容（預設隱藏） */
.ABOUT-US .dropdown-content {
  display: none;
  position: absolute;
  background-color: rgba(255, 255, 255, 0.9); /* 白色帶 10% 透明 */
  min-width: 120px; /* 最小寬度 */
  box-shadow: 0px 8px 16px rgba(0,0,0,0.2); /* 陰影效果 */
  z-index: 1; /* 確保選單浮在最上層 */
  top: 55px; /* 從上方偏移，使選單出現在主選項下方 */
  left: 60%;
  transform: translateX(-50%);
  border-radius: 4px; /* 圓角邊框 */
  padding: 8px 0; /* 上下內距 */
}

/* 下拉選單中的每個選項 */
.ABOUT-US .dropdown-item {
  padding: 10px 20px; /* 內距設定 */
  font-size: 16px; /* 字體大小 */
  color: #004f8a; /* 字體顏色 */
  cursor: pointer; /* 滑鼠游標改為手指形狀 */
  white-space: nowrap; /* 不換行 */
  text-align: center; /* 加這一行讓文字置中 */
  transition: all 0.3s ease
}

/* 滑鼠滑過下拉選項時的背景效果 */
.ABOUT-US .dropdown-item:hover {
  background-color: #004f8a; /* 背景變深藍 */
  color: white;              /* 字變白色 */
}

/* 滑鼠移到主選單項目時顯示下拉內容 */
.ABOUT-US .dropdown:hover .dropdown-content {
  display: block;
}


/* title語言選擇對齊 */
.ABOUT-US .group-13 {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px; /* 圖與字的間距，可依需要調整 */
}

.ABOUT-US .group-13 .icon {
  width: 20px;
  height: 20px;
}

.ABOUT-US .group-13 .text {
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #173268;
  font-size: 18px;
  white-space: nowrap;
}

.ABOUT-US .dropdown-arrow {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 10px solid #173268; /* 三角形朝下 */
}

/* 下拉選單用要改的結束 */

/* 平滑滾動 */
html, body {
  scroll-behavior: smooth;
}


/* 給下拉選單的<a>用的 */

.ABOUT-US .dropdown-item,
.ABOUT-US .dropdown-item:link,
.ABOUT-US .dropdown-item:visited {
  display: block;           /* 讓 <a> 像區塊一樣佔滿整行 */
  padding: 10px 20px;       /* 設定內距，保持你原本的設計 */
  font-size: 16px;
  color: #004f8a;           /* 字體顏色 */
  text-decoration: none;    /* 移除超連結底線 */
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  transition: all 0.3s ease;
}
.ABOUT-US .dropdown-item:hover {
  background-color: #004f8a; /* 背景變深藍 */
  color: white;              /* 字變白色 */
}
/* 給下拉選單的<a>用的結束 */

.ABOUT-US .many-splendid {
  position: absolute;
  width: 361px;
  height: 56px;
  top: 12px;
  left: 27px;
  object-fit: cover;
}

@media (min-width: 768px) and (max-width: 1399px) {
.ABOUT-US .title {
    position: fixed;
    zoom: 0.9;
    left: 50%;
    transform: translateX(-50%);
    width: 1440px; /* 保持原寬度方便置中 */
}
}

@media (max-width: 768px) {
.ABOUT-US .hamburger {
  width: 30px;
  height: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  position: absolute;
  top: 20px;
  right: 20px;
  left: auto;
  z-index: 10000;
}

.ABOUT-US .hamburger span {
  display: block;
  height: 2px;         /* 線條變細 */
  width: 100%;
  background-color: #173268;
  border-radius: 2px;
  transition: all 0.4s ease;
  position: absolute;       /* 改成 absolute，方便控制位置 */
  left: 0;
}

.ABOUT-US .hamburger span:nth-child(1) { top: 0; }
.ABOUT-US .hamburger span:nth-child(2) { top: 9px; }
.ABOUT-US .hamburger span:nth-child(3) { top: 18px; }

/* 點擊後變成 X */
.ABOUT-US .hamburger.active span:nth-child(1) {
  top: 9px;                 /* 移到中間 */
  transform: rotate(45deg); /* 旋轉 */
}

.ABOUT-US .hamburger.active span:nth-child(2) {
  opacity: 0; /* 中間線消失 */
}

.ABOUT-US .hamburger.active span:nth-child(3) {
  top: 9px;                  /* 也移到中間 */
  transform: rotate(-45deg); /* 旋轉 */
}

.ABOUT-US .title {
    width: 100%;          /* 讓寬度自動撐滿螢幕 */
    max-width: 100%;      /* 避免超過螢幕 */
    left: 0;              /* 靠左 */
    right: 0;             /* 靠右 */
    margin: 0 auto;       /* 自動置中 */
  }

.ABOUT-US .head-rectangle {
    width: 100%;          /* 下方橫線跟著縮小 */
    left: 0;
  }

.ABOUT-US .navbar {
  display: none; /* 預設隱藏 */
  flex-direction: column;
  position: fixed;      /* 改成固定覆蓋螢幕 */
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;        /* 高度覆蓋整個視窗 */
  justify-content: flex-start; /* 靠上 */
  align-items: center;  /* 水平垂直置中 */
  background-color: white;
  padding: 30px;
  box-shadow: 0px 2px 5px rgba(152, 152, 152, 0.2);
  z-index: 9999;        /* 蓋在最上層 */
  text-align: center;  /* 讓裡面元素置中 */
}

.ABOUT-US .navbar.active {
    display: flex; /* 點擊漢堡後展開 */
  }
  
.ABOUT-US .navbar .nav-logo {
    display: block;
    text-align: center;
    margin-bottom: 15px; /* 與選單文字保持距離 */
  }

.ABOUT-US .navbar .nav-logo img {
    max-width: 200px; /* 縮小圖片，依需求調整 */
    height: auto;
  }

.ABOUT-US .navbar a,
.ABOUT-US .dropdown {
    display: inline-block;  /* 讓選項水平排列 */
    margin: 5px 10px;
  }

.ABOUT-US .dropdown {
    position: relative; /* 父容器相對定位，子元素才能依附它 */
  }

  /* 手機版 dropdown：點擊展開，不要絕對定位 */
.ABOUT-US .dropdown-content {
  position: absolute;
  top: 100%;   /* 剛好緊貼「關於我們」區塊的底部 */
  margin-top: 10px;    /* 往下移 5px，製造間距 */
  left: 50%;     /* 與父層左邊對齊 */
  width: 150px; /* 可依需求調整 */
  border: 1px solid #8a8a8a;
  box-shadow: none; /* 移除陰影 */
  background: rgba(249, 249, 249, 0.9); /* #f9f9f9 90%透明 */
  display: none;
  z-index: 10001;
}

.ABOUT-US .dropdown.active .dropdown-content {
    display: block;
  }

    /* 子選單內項目 */
.ABOUT-US .dropdown-content a {
    display: block;
    padding: 8px 15px;
    text-decoration: none;
  }

.ABOUT-US .many-splendid {
    max-width: 200px;   /* 控制最大寬度 (依需求調整) */
    height: auto;       /* 保持比例 */
    margin: 10px auto 0; /* 上方空間 10px，可自行調整 */
  }

  /* 手機版不顯示 dropdown-arrow */
.ABOUT-US .dropdown-arrow {
    display: none;
  }
}

/* 誠信經營 */
.ABOUT-US .view-13 {
  position: relative;
  width: 100%;
  min-height: 900px;
  background: #f5f5f5; /* 假設是灰底，可以依需求改 */
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column; /* 由上而下排列 AU-2 與 overlap-2 */
  padding:0 auto 50px;
}

.ABOUT-US .AU-3 {
  display: flex;
  flex-direction: column;
  width: 300px;
  gap: 16px;
  margin: 80px 0 20px 130px;  /* 上 右 下 左 */
  position: relative;        /* 保持相對定位 */
}

.ABOUT-US .text-wrapper-36 {
  position: relative;
  width: fit-content;
  margin-top: -1px;
  margin-right: -89px;
  font-family: "DFPHeiBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #0167b5;
  font-size: 20px;
  letter-spacing: 4px;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .text-wrapper-36-1 {
  position: relative;
  width: 160px;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #000000;
  font-size: 40px;
  letter-spacing: 0;
  line-height: 40px;
}

.ABOUT-US .line-13-1 {
  position: absolute;
  width: 2px;
  height: 80px;
  top: 50%;
  transform: translateY(-50%);
  left: -20px;    /* ✅ 可調整相對距離 */
  background-color: #0167b5;
}

.ABOUT-US .about-content {
  position: absolute;
  top: 230px;
  left: 130px;
  width: 1180px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ABOUT-US .paragraph {
  font-family: "DFPHeiMedium-B5-Regular", Helvetica, sans-serif;
  font-size: 16px;
  color: #000;
  letter-spacing: 0.3px;
  line-height: 2.0;
  text-indent: 2em;  /* ✅ 每段開頭縮排兩個字 */
}

.ABOUT-US .highlight {
  color: #0167b5;
  font-size: 20px;
}

.ABOUT-US .report-instructions {
  position: absolute;
  top: 523px;
  left: 130px;
  width: 900px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ABOUT-US .instruction-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.ABOUT-US .instruction-title {
  font-family: "DFPHeiMedium-B5-Regular", Helvetica, sans-serif;
  font-size: 18px;
  font-weight: 500;
  color: #173268;
}

.ABOUT-US .instruction-list {
  list-style-type: disc;
  padding-left: 20px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica, sans-serif;
  font-size: 18px;
  color: #173268;
  line-height: 1.6;
}

.ABOUT-US .instruction-list li {
  margin-bottom: 6px;
}

.ABOUT-US .instruction-note {
  font-family: "DFPHeiMedium-B5-Regular", Helvetica, sans-serif;
  font-size: 16px;
  color: #6a6a6a;
  line-height: 1.6;
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .ABOUT-US .view-13 {
    display: flex;
    flex-direction: column;
    align-items: center;  /* 讓內部元素置中 */
    min-height: auto;     /* 高度依內容撐開 */
  }

  .ABOUT-US .AU-3 {
    margin: 50px 100px 20px;
    transform: scale(0.8); /* ✅ 依比例縮小 */
    transform-origin: center top;
    width: 100%;          
    text-align: left;     
  }

  .ABOUT-US .text-wrapper-36 {
    white-space: normal;   /* ✅ 允許自動換行 */
    text-align: left;   
    width: 100%;           /* ⬅ 覆蓋掉 fit-content */
    margin-right: 0;       /* ⬅ 移除負邊距，避免被擠出 */
  }

  .ABOUT-US .about-content,
  .ABOUT-US .report-instructions {
    position: relative;  /* ✅ 移除 absolute，讓內容隨排版流動 */
    top: auto;
    left: auto;
    width: 100%;         /* 撐滿容器寬度 */
    max-width: 100%;
    margin: 10px 0;
    padding: 0 16px;     /* 兩側保留間距，避免文字貼邊 */
    box-sizing: border-box;
  }

  .ABOUT-US .paragraph,
  .ABOUT-US .instruction-title,
  .ABOUT-US .instruction-list,
  .ABOUT-US .instruction-note {
    white-space: normal;     /* ✅ 允許自動換行 */
    word-wrap: break-word;
    word-break: break-word;
    text-align: left;        /* 保持段落靠左 */
  }
}

/* DOWN開始 */
.ABOUT-US  .DOWN {
  position: relative;
  width: 1440px;
  height: 320px;
}

.ABOUT-US  .DOWN .bg-image {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;       /* 等同 background-size: cover */
  object-position: 50% 50%; /* 等同 background-position: 50% 50% */
  z-index: 0;              /* 確保在最底層 */
}

.ABOUT-US .overlap-group {
  position: relative;
  height: 320px;
  background-color: #18366ccc;
  z-index: 1;              /* 在圖片上方 */
}

.ABOUT-US  .text-wrapper {
  position: absolute;
  top: 283px;
  left: 386px;
  font-family: "DFPHeiLight-B5-Regular", Helvetica;
  font-weight: 400;
  color: #58d2ff;
  font-size: 16px;
  text-align: center;
  letter-spacing: 1.6px;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .LOGO {
  position: absolute;
  width: 434px;
  height: 66px;
  top: 69px;
  left: 125px;
  object-fit: cover;
}

.ABOUT-US  .overlap-2 {
  position: absolute;
  width: 361px;
  height: 47px;
  top: 71px;
  left: 562px;
}

.ABOUT-US  .text-wrapper-2 {
  position: absolute;
  top: 0;
  left: 0;
  font-family: "DFPHeiUBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 22px;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .text-wrapper-3 {
  position: absolute;
  top: 23px;
  left: 0;
  font-family: "DFPHeiUBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 22px;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-4-1 {
  position: absolute;
  top: 34px;
  left: 129px;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-size: 26px;
  letter-spacing: 5.2px;
  line-height: normal;
  font-weight: 400;
  color: #ffffff;
  text-align: center;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-5-1 {
  position: absolute;
  top: 34px;
  left: 398px;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 26px;
  text-align: center;
  letter-spacing: 5.2px;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US .line {
  position: absolute;
  width: 808px;
  height: 1px;
  top: 148px;
  left: 122px;
  object-fit: cover;
  background-color:#ffffff;
}

.ABOUT-US .group,
.ABOUT-US .group-2,
.ABOUT-US .group-3 {
  position: absolute;
  left: 125px;
  display: flex;
  align-items: center; /* 垂直置中 */
  height: auto;
}

.ABOUT-US .group {
  top: 243px;
  width: 667px;
}

.ABOUT-US .group-2 {
  top: 202px;
  width: 505px;
}

.ABOUT-US .group-3 {
  top: 160px;
  width: 270px;
}

.ABOUT-US .text-wrapper {
  position: absolute;
  top: 283px;
  left: 386px;
  font-family: "DFPHeiLight-B5-Regular", Helvetica;
  font-weight: 400;
  color: #58d2ff;
  font-size: 16px;
  text-align: center;
  letter-spacing: 1.6px;
  line-height: normal;
  white-space: nowrap;
}

/* icon 統一大小與間距，取消絕對定位讓 flex 生效 */
.ABOUT-US  .house,
.ABOUT-US  .phone-call,
.ABOUT-US  .printer {
  position: static;
  width: 25px;
  height: 25px;
  margin-right: 10px; /* icon 與標題間距 */
  object-fit: cover;
}

/* 標題文字 固定寬度，與 icon 右側間距 */
.ABOUT-US  .text-wrapper-7-1 {
  width: 80px;
  font-family: "DFPNHeiXBold-B5-Regular", Helvetica;
  font-weight: 400;
  margin-right: 10px;
  white-space: nowrap;
  text-align: left;
  color: #ffffff;
  font-size: 20px;
  letter-spacing: 4px;
  line-height: normal;
}

/* 內容文字 撐滿剩餘空間 */
.ABOUT-US  .text-wrapper-6-1 {
  flex: 1;
  white-space: nowrap;
  text-align: left;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 20px;
  letter-spacing: 4px;
  line-height: normal;
  margin: 0;
}

.ABOUT-US  .text-wrapper-9 {
  position: absolute;
  width: 80px;
  top: 41px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-10 {
  position: absolute;
  width: 80px;
  top: 121px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-11 {
  position: absolute;
  width: 80px;
  top: 240px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-12 {
  position: absolute;
  width: 80px;
  top: 160px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-13 {
  position: absolute;
  width: 80px;
  top: 81px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .text-wrapper-14 {
  position: absolute;
  width: 80px;
  top: 200px;
  left: 1225px;
  font-family: "DFPHeiMedium-B5-Regular", Helvetica;
  font-weight: 400;
  color: #ffffff;
  font-size: 18px;
  text-align: center;
  letter-spacing: 0;
  line-height: normal;
  white-space: nowrap;
}

.ABOUT-US  .line-1 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 45px;
  left: 1218px;
  background-color:#ffffff;
}

.ABOUT-US  .line-2 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 85px;
  left: 1218px;
  background-color:#ffffff;
}

.ABOUT-US  .line-3 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 125px;
  left: 1218px;
  background-color:#ffffff;
}

.ABOUT-US  .line-4 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 164px;
  left: 1218px;
  background-color:#ffffff;
}
.ABOUT-US  .line-5 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 204px;
  left: 1218px;
  background-color:#ffffff;
}
.ABOUT-US  .line-6 {
  position: absolute;
  width: 3px;
  height: 20px;
  top: 244px;
  left: 1218px;
  background-color:#ffffff;
}
/* DOWN結束 */

@media (max-width: 768px) {
    /* 隱藏圖示 */
.ABOUT-US  .printer,
.ABOUT-US  .phone-call,
.ABOUT-US  .house {
    display: none;
  }

.ABOUT-US  .DOWN {
    position: relative !important;
    width: 100% !important;
    height: auto !important;
    top: auto !important;
    left: auto !important;
  }

.ABOUT-US  .overlap-group {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 1rem;
    height: auto;
    background-color: rgba(24, 54, 108, 0.8);
  }

  /* LOGO 縮小並置中 */
.ABOUT-US  .LOGO {
    position: static;
    width: 70%;
    max-width: 300px;
    height: auto;
    margin-bottom: 1rem;
  }

  /* 公司名稱文字調整，置中且間距縮小 */
.ABOUT-US  .text-wrapper-4-1,
.ABOUT-US  .text-wrapper-5-1 {
    position: static;
    text-align: center;
    white-space: normal;
    letter-spacing: 2px;
    font-size: 1rem;
    margin-bottom: 0.3rem;
  }

  /* 隱藏 text-wrapper-2 和 text-wrapper-3 */
.ABOUT-US  .text-wrapper-2,
.ABOUT-US  .text-wrapper-3 {
    display: none;
  }

  /* 中間的分隔線改寬度並置中 */
.ABOUT-US  .line {
    position: static;
    width: 80%;
    margin: 1rem auto;
  }

  /* 聯絡資訊群組直排，靠左對齊 */
.ABOUT-US .group,
.ABOUT-US .group-2,
.ABOUT-US .group-3 {
    position: static;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-bottom: 0rem;
    width: 100%;
    padding-left: 1rem;
    box-sizing: border-box;
    margin-top: 10px; /* 加上 margin-top 往下移 */
  }

.ABOUT-US .text-wrapper-6-1 {
  position: static;
  font-size: 0.9rem;
  letter-spacing: 1px;
  white-space: normal;   /* 允許換行 */
}

.ABOUT-US .text-wrapper-7-1 {
  position: static;
  font-size: 1rem;
  letter-spacing: 1px;
  margin-right: -10px; /* 加間距 */
}

  /* 導覽連結改成直排，置中對齊 */
.ABOUT-US .text-wrapper-9,
.ABOUT-US .text-wrapper-10,
.ABOUT-US .text-wrapper-11,
.ABOUT-US .text-wrapper-12,
.ABOUT-US .text-wrapper-13,
.ABOUT-US .text-wrapper-14 {
    position: static;
    display: block;
    margin: 0.3rem 0;
    text-align: center;
    font-size: 1rem;
    width: 100%;
    padding-right: 1rem;
    box-sizing: border-box;
  }

  /* 桌機版的小直線在手機隱藏 */
.ABOUT-US .line-1,
.ABOUT-US .line-2,
.ABOUT-US .line-3,
.ABOUT-US .line-4,
.ABOUT-US .line-5,
.ABOUT-US .line-6 {
    display: none;
  }

  /* 版權文字放最下面一列，斷行置中 */
.ABOUT-US .text-wrapper {
    position: static;
    width: 100%;
    margin-top: 1.5rem;
    white-space: normal;
    text-align: center;
    font-size: 0.8rem;
  }
}

/* 回到頂端懸浮按鈕 */
.ABOUT-US .backToTopBtn {
  position: fixed;
  bottom: 40px;
  right: 40px;
  z-index: 9999; 
  transform: translateZ(0); /* 🔥 強制生成新圖層，避免被覆蓋 */
  width: 50px;
  height: 50px;
  border-radius: 30%;
  background-color: rgba(255, 255, 255, 0.6); /* 半透明白色 */
  border: 1.5px solid rgba(150, 150, 150, 0.8); /* ✅ 灰色邊框線 */
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.4s ease,
    transform 0.2s ease,
    background-color 0.3s ease,
    border-color 0.3s ease;
}

/* 三角形箭頭 */
.ABOUT-US .backToTopBtn::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 15px solid #666666; /* 灰色箭頭 */
  transition: border-bottom-color 0.3s ease;
}

/* 顯示狀態 */
.ABOUT-US .backToTopBtn.show {
  opacity: 1;
  pointer-events: auto;
}

/* 滑鼠懸停效果 */
.ABOUT-US .backToTopBtn:hover {
  background-color: rgba(150, 150, 150, 0.4); /* 半透明灰底 */
  border-color: rgba(180, 180, 180, 0.8);     /* ✅ hover 時邊框稍淺 */
  transform: scale(1.1);
  border-radius: 50%;
}

/* 滑鼠懸停時箭頭變白 */
.ABOUT-US .backToTopBtn:hover::before {
  border-bottom-color: white;
}