@media (min-width: 800px) {
    body {
        background-color: #020100;
        font-family: Arial, sans-serif;
        line-height: 1.6;
        margin: 0;
        padding: 0;
        color: #333;
    }
    /* //////頂部區域////// */
    header {
        position: fixed;
        background: linear-gradient(to right, #9e9d77f0, #2b3e57f0);
        width: 100%;
        height: 105px;
        z-index: 1000;
        color: white;
    }
    .header-container {
        position: relative;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between; 
    }
    .header-logo {
        display: flex;
        align-items: center;
        justify-content: space-evenly; 
        min-width: 20%;
        height: auto;
        margin: 0 0;
        padding: 0 0;
    }
    .header-img {
        width: 130px;
        height: 100%;
        display: block;
        pointer-events: auto;
        user-select: none;
    }
    .header-links a {
        display: flex;
        align-items: center;
        justify-content: space-evenly; 
        color: white;
        text-decoration: none;
        padding: 1vh 2vw;
        font-size: 16px;
        height: 90px;
    }
    .header-links a:hover {
        display: flex;
        align-items: center;
        justify-content: center; 
        height: 120%;
        background-color: #ffffff40;
        transition: background-color 0.5s;
        color: #ffffff;
        box-shadow: 0 0 20px rgb(39, 18, 0);
    }
    .header-menu {
        list-style: none;
        display: flex;
        align-items: center;
        justify-content: center; 
        width: auto;
        height: 75px;
        margin: 0 0;
        padding: 0 0;
    }
    .header-menu-item-dropdown {
        display: flex;
        align-items: center;
        justify-content: center; 
        width: auto;
        height: 75px;
        position: relative;
    }
    .header-menu-item-dropdown a {
        color: #ffffff;
    }
    .header-dropdown-menu {
        opacity: 0;
        transform: translateY(-1vh);
        visibility: hidden;
        transition: opacity 0.3s ease, transform 0.3s ease;
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        position: absolute;
        top: 120%;
        left: 0;
        width: 200px;
        height: 300px;
        background: #445357;
        border: 1px solid #ccc;
        padding: 0 0;
        margin: 0 0;
        border-radius: 10px;
        list-style: none;
        z-index: 1000;
    }
    .header-menu-item-dropdown:hover .header-dropdown-menu {
        opacity: 1;
        transform: translateY(0);
        visibility: visible;
    }
    .header-item-image {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        color: #ffffff;
        width: 200px;
        height: auto;
        margin: 0px 0px;
        padding: 10px 0px;
        border-radius: 10px;
        font-size: 25px;
    }
    .header-item-image a {
        display: flex;
        align-items: center;
        justify-content: left;
        text-decoration: none;
        color: #ffffff;
        width: 200px;
        height: auto;
        margin: 0px 0px;
        padding: 10px 10px;
        border-radius: 10px;
        font-size: 25px;
    }
    .header-item-image a:hover {
        display: flex;
        align-items: center;
        justify-content: left;
    }
    .header-item-image:hover .header-hover-image {
        display: block;
    }
    .header-hover-image {
        display: none;
        position: absolute;
        left: 100%;
        top: 0;
        width: 150%;
        height: auto;
        background: linear-gradient(to bottom, #837762, #13252b);
        border: 1px solid #ccc;
        padding: 0;
        margin: 0;
        object-fit: cover;
    }
    .header-hover-image h1 {
        text-align: center;
        padding: 0;
        margin: 0;
        font-size: 1.5vw;
        font-weight: 1000;
    }
    .header-hover-image h2 {
        text-align: center;
        padding: 2vh;
        margin: 0;
        font-size: 1vw;
        font-weight: 700;
        color: #bebebe;
    }
    .lang-toggle {
        position: relative;
        width: 100px;
        height: 35%;
        background-color: #837762;
        border-radius: 100px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0;
        margin: 0 3vw;
        font-family: sans-serif;
        cursor: pointer;
        user-select: none;
        transition: background-color 0.3s;
    }
    .lang-toggle .toggle-btn {
        position: absolute;
        width: 55%;
        height: 100%;
        background-color: rgba(255, 255, 255, 0.4);
        border-radius: 100px;
        transition: transform 0.3s;
        box-shadow: 0 0 5px rgba(0, 0, 0, 0.603);
        transform: translateX(0%);
    }
    .lang-toggle span {
        font-size: 15px;
        font-weight: 300;
        z-index: 1;
        width: 50%;
        text-align: center;
        font-weight: bold;
    }
    .lang-toggle.active .toggle-btn {
        transform: translateX(80%);
    }
    .menu-toggle {
      display: none;
    }
    .product-toggle {
      display: none;
    }
    .header-menu-space {
      display: none;
    }
    .header-menu-line {
      display: none;
    }

    /* //////中部區域1_開場圖片////// */
    .opening {
      position: relative;
      width: 100%;
      height: 70vw;
      overflow: hidden;
    }
    .opening-img {
      position: absolute;
      top: 5%;
      left: 0%;
      width: 100%;
      height: 70vw;
    }
    .opening-img img {
      width: 100%;
      height: auto;
    }
    .opening-text {
      position: absolute;
      color: white;
      top: 30%;
      left: 10%;
    }
    .opening-text h1 {
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 4vw;
    }
    .opening-text h2 {
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5vw;
      font-weight: 100;
    }
    .opening-buy {
      position: absolute;
      top: 150%;
      width: 100%;
      left: -17%;
    }
    .opening-buy-btn {
      position: absolute;
      bottom: 55%;
      display: flex;
      justify-content: center;
      padding: 1vh 1vw;
      background-color: #ffffff20;
      color: #fff;
      text-decoration: none;
      border: 1px solid #fff;
      border-radius: 2vw;
      font-size: 1vw;
      font-weight: 300;
      width: 40%;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }
    .opening-buy-btn:hover {
      background-color: #ffffff44;
      transform: scale(1.05);
    }
    .opening-spec-btn {
      position: absolute;
      bottom: 55%;
      left: 80%;
      display: flex;
      justify-content: center;
      padding: 1vh 1vw;
      background-color: #ffffff20;
      color: #fff;
      text-decoration: none;
      border: 1px solid #fff;
      border-radius: 2vw;
      font-size: 1vw;
      font-weight: 300;
      width: 40%;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }
    .opening-spec-btn:hover {
      background-color: #ffffff44;
      transform: scale(1.05);
    }

    /* //////中部區域2_核心技術亮點////// */
    .copywriter-1 {
      width: 70%;
      height: 50vw;
      position: relative;
      bottom: 0;
      left: 15%;
      margin: 0vw 0 0vw 0;
    }
    .copywriter-1-title {
      position: absolute;
      top: 0%;
      width: 100%;
      height: 10%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 3vw;
      font-weight: 700;
      color: #ffffff;
    }
    .copywriter-1-title h1 {
      position: absolute;
      top: 120%;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #ffffff;
    }   
    .copywriter-1-text {
      font-size: 1.8vw;
      font-weight: 500;
      color: rgb(189, 189, 189);
      position: absolute;
      top: 30%;
      left: 10%;
      width: 80%;
    }
    .spec-layout {
      background-color: #425255;
      width: 100%;
      height: 40vw;
      position: relative;
      bottom: 0;
      left: 0;
      border-radius: 2vw;
      margin: 0vh 0vw 15vh 0;
    }
    .spec-title {
      background-color: #ffffff;
      position: absolute;
      top: 0%;
      width: 100%;
      height: 20%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #474734;
    }   
    .spec-text-num {
      font-size: 2vw;
      font-weight: 500;
      color: white;
      position: absolute;
    }
    #num1  { bottom: 65%; left:  5%; }
    #num2  { bottom: 65%; left: 40%; }
    #num3  { bottom: 65%; left: 75%; }
    #num4  { bottom: 25%; left:  5%; }
    #num5  { bottom: 25%; left: 40%; }
    #num6  { bottom: 25%; left: 75%; }

    .spec-text-specname {
      font-size: 1.5vw;
      font-weight: 500;
      color: rgb(182, 182, 182);
      position: absolute;
    }
    #specname1  { bottom: 55%; left:  5%; }
    #specname2  { bottom: 55%; left: 40%; }
    #specname3  { bottom: 55%; left: 75%; }
    #specname4  { bottom: 15%; left:  5%; }
    #specname5  { bottom: 15%; left: 40%; }
    #specname6  { bottom: 15%; left: 75%; }

    /* //////中部區域3_圖片1////// */
    .copywriter-2 {
      width: 70%;
      height: 60vw;
      position: relative;
      bottom: 0;
      left: 15%;
      margin: 0vw 0 15vw 0;
    }
    .copywriter-2-title {
      position: absolute;
      top: 0%;
      width: 100%;
      height: 20%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #ffffff;
    }
    .copywriter-2-text {
      font-size: 1.8vw;
      font-weight: 500;
      color: rgb(189, 189, 189);
      position: absolute;
      top: 20%;
      left: 10%;
      width: 80%;
    }
    .copywriter-2-img {
      position: absolute;
      top: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      height: 40vw;
    }
    .copywriter-2-img img {
      width: 80%;
      height: auto;
    }

    /* //////中部區域4_影片1////// */
    .copywriter-3 {
      width: 70%;
      height: 60vw;
      position: relative;
      bottom: 0;
      left: 15%;
      margin: 0vw 0 15vw 0;
    }
    .copywriter-3-title {
      position: absolute;
      top: 0%;
      width: 100%;
      height: 20%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #ffffff;
    }
    .copywriter-3-text {
      font-size: 1.8vw;
      font-weight: 500;
      color: rgb(189, 189, 189);
      position: absolute;
      top: 20%;
      left: 10%;
      width: 80%;
    }
    .copywriter-3-video {
      position: absolute;
      top: 40%;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      height: 50vw;
    }
    .copywriter-3-video video {
      width: 90%;
      height: auto;
    }
    
    /* //////中部區域5_影片2、3////// */
    .copywriter-4 {
      width: 70%;
      height: 10vw;
      position: relative;
      bottom: 0;
      left: 15%;
      margin: 0vw 0 0vw 0;
    }
    .copywriter-4-title {
      position: absolute;
      top: 20%;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #ffffff;
    }
    .product-image {
      width: 100%;
      height: 40vw;
      overflow: hidden;
    }
    .slider-container {
      width: 100%;
      height: 40vw;
      overflow: hidden;
      position: relative;
    }
    .slider {
      display: flex;
      transition: transform 0.5s ease;
      width: 300%;
    }
    .slide {
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      width: 100% / 3;
      width: 33.3333%;
      flex-shrink: 0;
    }
    .slide video {
      width: 65%;
      height: auto;
      object-fit: cover;
      object-position: top;
    }
    .slider-nav {
      display: flex;
      align-items: top;
      justify-content: center;
      position: relative;
      width: 100%;
      height: 15vw;
    }
    .slider-nav button {
      all: unset;
      display: flex;
      justify-content: center;
      text-align: center;
      position: relative;
      width: 40%;
      height: 20vw;
      color: #ffffff;
      cursor: pointer;
      border-radius: 0.5vw;
      transition: background-color 0.3s;
      font-size: 2vw;
      font-weight: 700;
      margin: 2vw 5vw;
    }
    .slider-nav button:hover {
      background-color: #ffffff40;
    }
    .slider-nav button h1 {
      background-color: #ffffff00;
      text-align: left;
      position: absolute;
      width: 100%;
      top: 30%;
      border-radius: 0.5vw;
      font-size: 1.5vw;
      font-weight: 200;
    }
    .slider-progress-indicator {
      position: absolute;
      bottom: 50%;
      width: 100%;
      display: flex;
      justify-content: center;
    }
    .slider-progress-indicator .dot {
      background-color: #ca870b30;
      width: 40%;
      height: 0.2vw;
      border-radius: 10px;
      margin: 0rem 5vw;
      transition: background-color 0.3s ease;
    }
    .slider-progress-indicator .dot.active {
      background-color: #ca870b;
    }
    .image-overlay-btn1 {
      position: absolute;
      top: 0px;
      right: 89vw;
      width: 10%;
      height: 40vw;
      background-color: rgba(0, 0, 0, 0);
      color: rgba(255, 255, 255, 0.3);
      border: none;
      cursor: pointer;
      font-size: 10vw;
      display: flex;
      justify-content: left;
      align-items: center;
      background-size: 0% 100%;
      background-repeat: no-repeat;
      background-position: left;
      transition: background-size 0.4s ease, background-color 0.3s ease, transform 0.3s ease;
    }
    .image-overlay-btn1:hover {
      background-image: linear-gradient(to left, #ffffff00, #ffffff40);
      background-size: 100% 100%;
      color: rgba(255, 255, 255, 0.7);
    }
    .image-overlay-btn2 {
      position: absolute;
      top: 0;
      right: 0;
      width: 10%;
      height: 40vw;
      background-color: rgba(0, 0, 0, 0);
      color: rgba(255, 255, 255, 0.3);
      border: none;
      cursor: pointer;
      font-size: 10vw;
      display: flex;
      justify-content: right;
      align-items: center;
      background-size: 0% 100%;
      background-repeat: no-repeat;
      background-position: right;
      transition: background-size 0.4s ease, background-color 0.3s ease, transform 0.3s ease;
    }
    .image-overlay-btn2:hover {
      background-image: linear-gradient(to right, #ffffff00, #ffffff40);
      background-size: 100% 100%;
      color: rgba(255, 255, 255, 0.7);
    }

    /* //////中部區域6_圖片2////// */
    .copywriter-5 {
      position: relative;
      display: flex;
      justify-content: center;
      width: 100%;
      height: 50vw;
      overflow: hidden;
      margin: 20vw 0 0 0;
    }
    .copywriter-5-img {
      display: flex;
      justify-content: center;
      position: absolute;
      width: 100%;
      height: 100%;
      z-index: -2;
    }
    .copywriter-5-img img {
      width: 70%;
      height: auto;
    }
    .copywriter-5-img-overlay {
      position: absolute;
      top: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      z-index: -1;
    }
    .copywriter-5-alltext {
      width: 70%;
      height: 70vw;
      position: relative;
      top: 0;
    }
    .copywriter-5-title {
      position: absolute;
      top: 5%;
      width: 100%;
      height: 20%;
      text-align: center;
      font-size: 2.5vw;
      font-weight: 700;
      color: #ffffff;
    }
    .copywriter-5-text {
      font-size: 1.8vw;
      font-weight: 500;
      color: rgb(224, 224, 224);
      position: absolute;
      left: 10%;
      width: 80%;
      height: auto;
      top: 20%;
    }
    .copywriter-5-buy {
      margin: 5vw 0 20vw 0;
      width: 100%;
      height: 10vw;
      display: flex;
      justify-content: space-evenly;
      align-items: center;
    }
    .copywriter-5-buy a {
      padding: 1vw 4vw;
      background-color: #ffffff20;
      color: #fff;
      text-decoration: none;
      border: 1px solid #fff;
      border-radius: 2vw;
      font-size: 2vw;
      font-weight: 500;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }
    .copywriter-5-buy a:hover {
      background-color: #ffffff44;
      transform: scale(1.05);
    }

    /* //////底部區域////// */
    footer {
        position: relative;
         background: linear-gradient(to right, #2b3e57f0, #9e9d77f0);
        padding: 20vh 5vw;
        margin-top: 30vh;
    }
    .footer-menu {
        position: absolute;
        top: 15%;
        left: 0%;
        width: 100%;
        height: auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .footer-links a {
        color: #ffffff;
        text-decoration: none;
        font-size: 3.2vh;
        font-weight: 700;
        padding: 0 1vw;
        position: relative;
    }
    .footer-vertical-line {
        background-color: #bcbcbc;
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 0%;
        left: 96%;
        width: 2%;
        height: 100%;
        z-index: 20;
    }
    .footer-horizontal-line {
        background-color: #bcbcbc;
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 30%;
        width: 80%;
        height: 1%;
        left: 10%
    }
    .footer-container {
        margin-top: 5%;
        margin-left: 10%;
        font-weight: 200;
        color: #ffffff;
    }
    .footer-copyright {
        position: absolute;
        top: 85%;
        left: 67%;
        font-size: 0.4vw;
        color: #959595;
    }
    .footer-logo {
        position: absolute;
        top: 40%;
        left: 80%; 
    }
    .footer-img {
        width: 70%;
        height: auto;
    }

}