body {
    font-family: 'Noto Sans SC', sans-serif;
}
html {
    scroll-behavior: smooth;
}
* {
    margin: 0;
    padding: 0;
}
a:active, a:link, a:visited, a:link {
    color: aliceblue;
    text-decoration: none;
    font-weight: 700;
    font-size: 30px;
    text-align: center;
}

/* 定义字体 */
@font-face {
    font-family: 'VonwaonBitmap';      /* 自定义字体名称 */
    src: url('/fonts/VonwaonBitmap.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;                /* 优化加载，避免白屏 */
}

/* font-family: 'VonwaonBitmap', monospace; */

footer {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 30px;
    padding-top: 20px;
    border-top: 3px dotted #3b64f6;
}

.rotate {
    position: relative;      /* 作为定位参考 */
    overflow: hidden;        /* 防止内容溢出 */
    height: 1300px;          /* 保持原有高度（可按需调整） */
    background: #1a1a1a;        /* 加载前背景色 */

    border-bottom: 3px solid #3b82f6;
}

#panorama-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;        
    background-color: #ffffff;
}
/* 覆盖层：可以放任何东西 */
.overlay-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;             /* 上层，盖在画布之上 */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}
.title {
    width: 500px;
    height: 230px;

    /* 毛玻璃通用模板 */
    backdrop-filter: blur(6px);
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;

    font-size: 80px;
    text-align: center;
    line-height: 200px;

    position: absolute;
    top: 150px;

    cursor: pointer;   /*鼠标hover显示小手*/
    user-select: none;   /* 防止双击选中文字 */
}
.explore {
    width: 200px;
    height: 70px;
    border-radius: 30px;

    position: absolute;
    top: 450px;
    
    cursor: pointer;   /*鼠标hover显示小手*/
    user-select: none;   /* 防止双击选中文字 */
}
.explore a {
    text-align: center;
    line-height: 60px;
    font-size: 25px
}
.rotate-loading {
    transition: opacity 0.3s ease; /* 淡出动画 */
    pointer-events: none;  /* 让鼠标穿透，不干扰点击 */
    user-select: none;   /* 防止双击选中文字 */
}
.rotate-loading img {
    display: block;
    margin: 80px auto 0 auto;
    width: 80px;
    top: 550px;
}
.rotate-loading p {
    display: block;
    font-size: 50px;
    color: #3b64f6;
    margin-top: 70px;
    text-shadow: none;
}
#panorama-container:not(.rotate-preload) ~ .overlay-content .rotate-loading {
    opacity: 0;
    pointer-events: none;  /* 隐藏时彻底不阻挡点击 */
}
.version {
    position: absolute;
    right: 10px;
    bottom: 10px;
}
.slogan {
    display: block;
    width: 95%;
    margin: 100px auto;
    filter: drop-shadow(4px 6px 8px rgba(0, 0, 0, 0.5));
}
.slogan-por {
    display: none;
}

.link {
    font-family: 'VonwaonBitmap', monospace;
    background-image: url("/image/amethyst_block.jpg");
    width: 80%;
    min-height: 150px;
    margin: 30px auto;
    padding: 10px 30px;
    border-radius: 30px;
    color: #F3E5F5;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),0 2px 8px rgba(0, 0, 0, 0.2);

    cursor: pointer;
}
.link h3 {
    font-size: 60px;
    text-align: center;
}
.link nav {
    display: flex;
    margin-top: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.link a {
    color: #FFD54F;
    display: block;
    flex: auto;
    font-size: 35px;
    width: 150px;
    margin: 5px;
}
.link nav + div {
    text-align: center;
    border-top: #ffffff dotted 5px;
    margin-top: 10px;
    margin-bottom: 20px;
    padding-top: 10px;
}
.link nav + div a {
    display: inline;
    color: #ffffff;
}
.version-update-content {
    border-top: #ffffff dotted 5px;
    padding-bottom: 20px;
}
.version-update-content hr {
    border: none;
    height: 2px;
    background-color: #3b64f6;
}
#version-update-content {
    background-color: rgba(255,255,255,0.5);
    color: #1a1a1a;
    font-size: 25px;
    height: 400px;
    margin-top: 10px;
    padding: 15px;

    overflow-y: auto;
    scrollbar-width: none;         /* Firefox 浏览器 */
    -ms-overflow-style: none;      /* IE 和旧版 Edge */
}
/* ★★★ WebKit 内核浏览器（Chrome / Edge / Safari）隐藏滚动条 ★★★ */
#version-update-content::-webkit-scrollbar {
    display: none;
}


.announcement {
    font-family: 'VonwaonBitmap', monospace;
    background-image: url("/image/andesite.jpg");
    width: 80%;
    min-width: 350px;
    min-height: 400px;
    margin: 30px auto;
    padding: 10px 30px 30px 30px;
    border-radius: 30px;

    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),0 2px 8px rgba(0, 0, 0, 0.2);
    font-size: 35px;
    font-weight: 500;

    cursor: pointer;
}
.announcement h3 {
    font-size: 60px;
    text-align: center;
}
.intro {
    width: 90%;
    margin: 50px auto 30px auto;
}
.intro img {
    width: 100%;
}
.intro h3 {
    font-size: 60px;
}
.explore-more {
    width: 80%;
    margin: 50px auto 0 auto;
    position: relative;
}
.explore-more-h3 {
    text-align: center;
}
.explore-more h3 {
    font-size: 100px;

    /*
      硬朗金属橙原理：
      利用 135° 斜切角 + 15%→17% 这种"骤变"（紧邻色标大幅跳色），
      制造出类似金属折面或工业切割的锐利棱边。
    */
    background: linear-gradient(135deg, 
        #FFB347 0%,    /* 顶部高光暖橙 */
        #FF4500 15%,   /* 火焰橙过渡 */
        #8B0000 17%,   /* 🔪 骤变点1：瞬间切入深红棕，制造第一道棱角 */
        #8B0000 38%,   /* 保持暗部纵深 */
        #FF8C00 40%,   /* 🔪 骤变点2：瞬间弹射至高亮橙黄，模拟金属反光 */
        #FF6600 60%,   /* 亮橙过渡 */
        #4A0E00 62%,   /* 🔪 骤变点3：再次切入深锈棕，加重硬朗层次 */
        #FF9933 100%   /* 尾部光晕 */
    );
    
    /* 核心裁剪：让背景只显示在文字上 */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    
    /* 硬朗必备：极粗字重 + 块状显示 */
    font-weight: 900;
    display: inline-block;
    
    /* 
       关键细节：由于文字是透明的，普通 text-shadow 无效。
       改用 filter: drop-shadow 给文字外围添加硬朗的立体投影，
       让字体像金属铭牌一样凸起。
    */
    filter: drop-shadow(4px 6px 8px rgba(0, 0, 0, 0.6));
    
    /* （可选）如果觉得边缘太锐利，可加极其细微的描边加固结构感 */
    /* -webkit-text-stroke: 0.5px rgba(255, 100, 0, 0.2); */
    
}
.explore-more img {
    display: block;
    width: 60%;
    min-width: 300px;
    margin: 30px auto 0 auto;
}
.explore-more {
    position: relative;
}
.explore-more ul {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.explore-more li {
    flex: 1 1 160px;
    min-width: 60px;
    margin: 30px auto;
}

.explore-more li a {
    display: block;
    color: #000;
}
.join-us {
    width: 80%;
    margin: 0 auto;
    border-top: 3px dotted #3b64f6;
    border-bottom: 3px dotted #3b64f6;
    padding: 20px 0 30px 0;
}
.join-us h3 {
    font-size: 80px;

    background: linear-gradient(121deg, #FE0576 24%, #EA12B6 40%, #38CBFF 60%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    display: inline-block;
}
.join-us p {
    font-size: 30px;
    font-weight: 600;
}
.join-us a {
    font-size: 20px;
    color: #000;
}
.main-city {
    width: 80%;
    margin: 50px auto 15px auto;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.main-city img {
    flex: 1 1 400px;
    min-width: 300px;
    border-radius: 20px;

    cursor: pointer;
}
.main-city + h3, #musicplay + h3 {
    display: block;
    font-size: 80px;
    margin-left: 10%;

    background: linear-gradient(121deg, #FE0576 24%, #EA12B6 40%, #38CBFF 60%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    display: inline-block;
    /* 苹果官网siri渐变颜色样式 */
}
.main-city + h3 + img {
    display: block;
    width: 80%;
    margin: 50px auto;
    border-radius: 20px;
}
#musicplay {
    cursor: pointer;
    margin: 15px auto 15px auto;
}
#come-on {
    width: 80%;
    margin: 30px auto 30px auto;
    padding: 10px;
    border: 3px solid #3b64f6;
    border-radius: 30px;
}
#come-on h3 {
    font-size: 80px;
    color: #3b82f6;

    cursor: pointer;
}
#come-on h3:active {
    color: #3b64f6;
}
#come-on p {
    font-size: 25px;
}
.come-on-1 {
    font-size: 50px;
    font-weight: 500;
}


/* footer下面的彩蛋 */
.friendship {
    text-align: center;
    width: 80%;
    margin: 0 auto 50px auto;
    padding: 10px;
    border: 3px solid #3b64f6;
    border-radius: 30px;
}
.friendship h3 {
    font-size: 80px;

    background: linear-gradient(135deg, #667eea 0%, #764ba2 40%, #f093fb 70%, #f5576c 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-weight: 800;
    display: inline-block;
    /* 可选：极光光泽描边，让边缘透出微光 */
    -webkit-text-stroke: 0.5px rgba(255,255,255,0.1);
}
.friendship-title {
    width: 100%;
    border-bottom: 3px dotted #3b64f6;
}
.friendship img {
    width: 300px;
    margin: 20px auto;
}
.friendship svg {
    width: 300px;
    margin: 20px auto;
}
.friendship p {
    font-size: 30px;
    font-weight: 500;
}
.milk-box {
    border-bottom: 3px dotted #3b64f6;
}
.jzfk {
    border-bottom: 3px dotted #3b64f6;
}
.laowang svg {
    width: 200px;
}



/* 竖屏布局 */

@media (orientation: portrait) {
    /* 竖屏 */
    .title {
        width: 90%;
    }

    .slogan {
        display: none;
    }
    .slogan-por {
        display: block;
        width: 95%;
        margin: 30px auto;
        filter: drop-shadow(4px 6px 8px rgba(0, 0, 0, 0.5));
    }

    .intro img {
        display: none;
    }
    .intro {
        width: 80%;
        border-top: 3px dotted #3b64f6;
        border-bottom: 3px dotted #3b64f6;
        margin-bottom: 0;

        cursor: pointer;
    }
    .intro h3 {
        background: linear-gradient(121deg, #FE0576 24%, #EA12B6 40%, #38CBFF 60%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        color: transparent;
        display: inline-block;
    }
    .intro p {
        font-size: 20px;
        font-weight: 500;
    }
    .explore-more {
        margin-top: 0;
    }
    .explore-more h3 {
        font-size: 60px;
    }
    .explore-more ul {
        margin-top: 20px;
        margin-bottom: 20px;
    }
    .explore-more ul li {
        margin: 0 auto;
        background: linear-gradient(135deg, #E8F4FD, #D4E9FA);
        color: #2C7AB1;
        border: 2px solid #B8D9F0;
        border-radius: 10px;
        cursor: pointer;
        box-shadow: 0 2px 8px rgba(44, 122, 177, 0.10);
    }
    .join-us h3 {
        font-size: 60px;
    }
    .main-city + h3, #musicplay + h3 {
        font-size: 60px;
    }

    #come-on h3 {
        font-size: 60px;
    }

    .friendship h3 {
        font-size: 60px;
    }
}
@media (orientation: landscape) {
    /* 横屏 */
    .intro h3, .intro p {
        display: none;
    }
}