.entry {
    position: relative;
    width: 100%;
    height: auto;
    background-image: url(../img/index-bg2.png);
    display: block;
    overflow: hidden;
    overflow-y: visible;
}

.entry-bg {
    position: absolute;
    z-index: -1;
    width: 100%;
    height: 100%;
    background-color: #b7e9e8;
    background-size: cover;
}

.entrance {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 100px;
    z-index: 1;
    top: 0%;
    left: 0%;
}

.logo1 {
    position: relative;
    aspect-ratio: 197 /731;
    z-index: 1;
    width: 90px;
    height: auto;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.logo1 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo1 span {
    position: absolute;
    bottom: -46px;
    left: 50%;
    width: 200%;
    height: auto;
    display: block;
    font-size: 1.1rem;
    text-align: center;
    color: #62621c;
    transform: translate(-50%, -50%);
}

.cloud1 {
    width: 100%;
    max-width: 1920px;
    height: auto;
    opacity: .8;
    position: absolute;
    z-index: 0;
    top: 65%;
    left: 50%;
    /* transform: translate(-50%, -50%); 由JavaScript控制 */
}

.cloud1 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cloud2 {
    position: absolute;
    opacity: .7;
    width: clamp(200px, 45%, 800px);
    height: auto;
    display: block;
    z-index: 0;
    top: 62%;
    right: -20%;
    /* transform: translate(-0%, -50%); 由JavaScript控制 */
}

.cloud2 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cloud3 {
    opacity: .5;
    width: clamp(200px, 45%, 800px);
    height: auto;
    display: block;
    position: absolute;
    z-index: 0;
    top: 20%;
    left: -20%;
    /* transform: translate(-0%, -50%); 由JavaScript控制 */
}

.cloud3 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cloud4 {
    position: absolute;
    opacity: .7;
    width: clamp(200px, 45%, 800px);
    height: auto;
    display: block;
    z-index: 0;
    top: 10%;
    right: -10%;
    /* transform: translate(-0%, -50%); 由JavaScript控制 */
}

.cloud4 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cloud5 {
    position: absolute;
    opacity: .7;
    width: clamp(200px, 45%, 900px);
    height: auto;
    display: block;
    z-index: 0;
    top: 80%;
    left: 0%;
}

.cloud5 img {
    width: 120%;
    height: 120%;
    object-fit: contain;
    display: block;
}

.entrance-content {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 100px;
    z-index: 1;
    top: 0%;
    left: 0%;
}

.touzi {
    position: absolute;
    width: clamp(100%, 120%, 140%);
    max-width: 2400px;
    height: auto;
    z-index: 0;
    top: 50%;
    left: 50%;
    mix-blend-mode: hard-light;
    opacity: 0;
    transform: translate(-50%, -50%);
}

.touzi img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.reef {
    position: absolute;
    width: clamp(60px, 8%, 150px);
    height: auto;
    z-index: 0;
    top: 23%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.reef img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.five-sided-flag {
    position: absolute;
    width: clamp(126px, 252px, 16.8vw);
    /* 縮小0.7倍 */
    max-width: 252px;
    /* 縮小0.7倍 */
    min-width: 126px;
    /* 縮小0.7倍 */
    height: auto;
    z-index: -1;
    top: 100%;
    left: 50%;
    transform-origin: center top;
    /* 錨點改為頂部 */
}

.five-sided-flag img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    transform-origin: center top;
    /* 圖片錨點也設為頂部 */
}

.cloud-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 0;
    top: 0%;
}

.cloud-bg img {
    width: 100%;
    height: auto;
    object-fit: contain;
    opacity: .25;
    filter: contrast(150%);
    display: block;
}

.five-sided-flag-text {
    position: absolute;
    width: 70px;
    height: atuo;
    z-index: 0;
    top: 47%;
    left: 60%;
    aspect-ratio: 189 / 793;
}

.five-sided-flag-text img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.five-sided-flag-text2 {
    position: absolute;
    width: 80px;
    height: atuo;
    z-index: 0;
    top: 57%;
    right: 65%;
    aspect-ratio: 189 / 793;
}

.five-sided-flag-text2 img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.eaves {
    position: absolute;
    width: 50%;
    height: auto;
    z-index: 0;
    bottom: 0%;
    left: 50%;
    transform: translate(-50%, 20%);
}

.eaves img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.entrance-content2 {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 100px;
    z-index: 1;
    top: 0%;
    left: 0%;
}

.eaves-bg {
    position: relative;
    width: clamp(100%, 100%, 120%);
    max-width: 2400px;
    height: auto;
    z-index: 0;
    top: 60%;
    left: 50%;
    transform: translate(-50%, 20%);
    opacity: 1;
    display: block;
    min-height: 100px;
}

.eaves-bg img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.bsdd1 {
    position: absolute;
    width: clamp(320px, 48%, 960px);
    /* 放大1.6倍 */
    height: auto;
    z-index: -1;
    top: 203%;
    left: 45%;
    mix-blend-mode: hard-light;
    opacity: 0;
    display: block;
    transition: opacity 0.8s ease-in-out;
}

.bsdd1 img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.bsdd2 {
    position: absolute;
    width: clamp(320px, 48%, 960px);
    /* 放大1.6倍 */
    height: auto;
    z-index: -1;
    top: 216%;
    left: 12%;
    mix-blend-mode: hard-light;
    opacity: 0;
    display: block;
    transition: opacity 0.8s ease-in-out;
}

.bsdd2 img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.bsdd3 {
    position: absolute;
    width: clamp(320px, 48%, 960px);
    /* 放大1.6倍 */
    height: auto;
    z-index: -1;
    top: 224%;
    left: 60%;
    mix-blend-mode: hard-light;
    opacity: 0;
    display: block;
    transition: opacity 0.8s ease-in-out;
}

.bsdd3 img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.bsdd4 {
    position: absolute;
    width: clamp(320px, 48%, 960px);
    /* 放大1.6倍 */
    height: auto;
    z-index: -1;
    top: 230%;
    left: -7%;
    mix-blend-mode: hard-light;
    opacity: 0;
    display: block;
    transition: opacity 0.8s ease-in-out;
}

.bsdd4 img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.door {
    position: relative;
    width: clamp(100%, 120%, 200%);
    max-width: 2400px;
    height: auto;
    z-index: 10;
    margin-top: auto;
    padding-top: 100vh;
    bottom: auto;
    left: 50%;
    transform: translate(-50%, 0);
    opacity: 0;
    pointer-events: auto;
    isolation: isolate;
    /* 建立獨立堆疊，避免外層裝飾圖層攔截 */
}

.door picture {
    pointer-events: none;
}

.door img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    pointer-events: none;
}

.door-button {
    position: absolute;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    padding: 0;
    background-color: #7c5c0e;
    color: #fff068;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: bold;
    letter-spacing: 0.15em;
    /* 加大字距 */
    border-radius: 50%;
    z-index: 20;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    pointer-events: auto;
    /* 確保按鈕可以接收點擊事件 */
    border: 3px solid #f6df0e;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    cursor: pointer;
    /* 添加手型游標 */
    -webkit-tap-highlight-color: transparent;
}

.door-button:hover {
    background-color: #DC143C;
    /* 大紅色 */
    transform: translate(-50%, -50%) scale(1.05);
    box-shadow:
        0 0 20px rgba(255, 215, 0, 0.8),
        0 0 40px rgba(255, 215, 0, 0.6),
        0 0 60px rgba(255, 215, 0, 0.4),
        0 0 80px rgba(255, 215, 0, 0.3),
        0 6px 8px rgba(0, 0, 0, 0.4);
    /* 強烈的黃色外光暈 */
}

/* 響應式設計 */
@media (max-width: 1920px) {
    .cloud1 {
        max-width: 100%;
    }

    .cloud2,
    .cloud3,
    .cloud4,
    .cloud5 {
        width: clamp(150px, 45%, 700px);
    }
}

@media (max-width: 1700px) {
    .five-sided-flag {
        top: 70%;
    }
}

@media (max-width: 1550px) {
    .five-sided-flag {
        top: 80%;
    }

    .bsdd1 {
        top: 173%;
    }

    .bsdd2 {
        top: 186%;
    }

    .bsdd3 {
        top: 194%;
    }

    .bsdd4 {
        top: 200%;
    }

    .door {
        padding-top: 50vh;
    }
}

@media (max-width: 1440px) {

    .cloud2,
    .cloud3,
    .cloud4,
    .cloud5 {
        width: clamp(150px, 45%, 600px);
    }

    .bsdd1,
    .bsdd2,
    .bsdd3,
    .bsdd4 {
        width: clamp(240px, 48%, 800px);
        /* 放大1.6倍 */
    }

    .five-sided-flag-text {
        top: 51%;
    }

    .five-sided-flag-text2 {
        top: 60%;
    }

    .bsdd1 {
        top: 153%;
    }

    .bsdd2 {
        top: 166%;
    }

    .bsdd3 {
        top: 174%;
    }

    .bsdd4 {
        top: 180%;
    }
}

@media (max-width: 1240px) {
    .cloud1 {
        top: 55%;
    }

    .cloud3 {
        width: 50%;
    }

    .cloud4 {
        width: 50%;
    }

    .cloud5 {
        width: 50%;
    }

    .five-sided-flag {
        top: 70%;
    }

    .five-sided-flag-text {
        top: 46%;
    }

    .five-sided-flag-text2 {
        top: 55%;
    }

    .bsdd1 {
        top: 148%;
    }

    .bsdd2 {
        top: 159%;
    }

    .bsdd3 {
        top: 165%;
    }

    .bsdd4 {
        top: 168%;
    }

    .door {
        padding-top: 20vh;
    }
}

@media (max-width: 1024px) {
    .five-sided-flag {
        width: clamp(126px, 210px, 21vw);
        /* 縮小0.7倍 */
        top: 60%;
    }

    .five-sided-flag-text {
        top: 43%;
    }

    .five-sided-flag-text2 {
        top: 52%;
    }

    .bsdd1 {
        top: 133%;
    }

    .bsdd2 {
        top: 141%;
    }

    .bsdd3 {
        top: 150%;
    }

    .bsdd4 {
        top: 153%;
    }
}

@media (max-width: 900px) {

    .door {
        padding-top: 20vh;
    }
}

@media (max-width: 768px) {
    .entry {
        min-height: 280vh;
        height: auto;
    }

    .touzi {
        width: clamp(100%, 100%, 120%);
        top: 30%;
    }

    .eaves-bg {
        width: clamp(180%, 200%, 220%);
    }

    .five-sided-flag {
        position: absolute;
        width: clamp(126px, 168px, 25.2vw);
        /* 縮小0.7倍 */
        bottom: 10%;
        top: 50%;
    }

    .five-sided-flag-text {
        top: 120%;
    }

    .five-sided-flag-text2 {
        top: 140%;
    }

    .door {
        width: clamp(100%, 120%, 180%);
        padding-top: 4vh;
    }

    .bsdd1,
    .bsdd2,
    .bsdd3,
    .bsdd4 {
        width: clamp(192px, 72%, 640px);
        /* 放大1.6倍 */
    }

    .door-button {
        width: 100px;
        height: 100px;
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .logo1 {
        width: 70px;
    }

    .logo1 span {
        font-size: 1rem;
        bottom: -34px;
    }

    .cloud2,
    .cloud3,
    .cloud4,
    .cloud5 {
        width: clamp(100px, 100%, 400px);
    }

    .cloud1 {
        width: 120%;
        max-width: unset;
        top: 50%;
    }

    .cloud2 {
        width: 80%;
        top: 20%;
        right: -40%;
    }

    .cloud3 {
        width: 80%;
        top: 20%;
        left: -40%;
    }

    .cloud4 {
        width: 80%;
        top: 90%;
        right: -20%;
    }

    .cloud5 {
        width: 100%;
        top: 83%;
        left: -40%;
    }

    .five-sided-flag-text {
        width: 50px;
    }

    .five-sided-flag-text2 {
        width: 57px;
    }

    .eaves {
        width: 140%;
        top: 99.5%;
    }

    .eaves2 {
        width: 50%;
        top: 98.5%;
    }

    .touzi {
        width: 180%;
    }

    .bsdd1 {
        width: 45%;
        top: 135%;
        left: 47%;
    }

    .bsdd2 {
        width: 45%;
        top: 141%;
        left: 8%;
    }

    .bsdd3 {
        width: 45%;
        top: 150%;
        left: 58%;
    }

    .bsdd4 {
        width: 45%;
        top: 153%;
        left: -3%;
    }
}

@media (max-width: 700px) {
    .five-sided-flag-text {
        top: 120%;
    }

    .five-sided-flag-text2 {
        top: 140%;
    }

    .bsdd1 {
        top: 130%;
    }

    .bsdd2 {
        top: 135%;
    }

    .bsdd3 {
        top: 143%;
    }

    .bsdd4 {
        top: 145%;
    }
}

@media (max-width: 500px) {
    .cloud1 {
        width: 140%;
    }

    .five-sided-flag {
        width: clamp(100.8px, 126px, 29.4vw);
        /* 縮小0.7倍 */
        top: 35%;
    }

    .touzi {
        width: clamp(100%, 100%, 110%);
    }

    .door {
        width: clamp(100%, 120%, 160%);
        padding-top: 3vh;
    }

    .five-sided-flag-text {
        top: 70%;
        width: 40px;
    }

    .five-sided-flag-text2 {
        top: 82%;
        width: 47px;
    }

    .bsdd1 {
        top: 100%;
    }

    .bsdd2 {
        top: 103%;
    }

    .bsdd3 {
        top: 113%;
    }

    .bsdd4 {
        top: 115%;
    }
}