@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC&display=swap');

* {
	margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Noto Serif SC", serif;
}
        
body {
	background: #0f172a;
    color: #f8fafc;
    overflow: hidden;
    height: 100vh;
}
        
		
/*****************************
	Swiper
*****************************/
.swiper {
	width: 100%;
    height: 100vh;
}
        
.swiper-slide {
	display: flex;
	justify-content: center;
	align-items: center;
	position: relative;
	overflow: hidden;
}
        
       
/*****************************
	Scroll-hint
*****************************/        
.scroll-hint {
	position: absolute;
    bottom: 0px;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: bounce 2s infinite;
}
        
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
		transform: translateY(0);
	}
	
    40%{
		transform: translateY(-10px);
	}
	
    60%{
		transform: translateY(-5px);
	}
}


/***************************************
	Swiper (SLIDE - 01)
***************************************/
.btn-download{
	background: url('../img/s_01/btn-02.webp')no-repeat center center;
	background-size: contain;
	width: 250px;
	height: 80px;
	cursor: pointer;
}

.btn-download:hover{
	background: url('../img/s_01/btn-02_active.webp')no-repeat center center;
	background-size: contain;
	width: 250px;
	height: 80px;
	cursor: pointer;
}


/***************************************
	Swiper (SLIDE - 02 To Others) - MENU
***************************************/          
.content-slide {
    background: url('../img/page_bg.webp');
    background-size: cover;
    background-position: center;
	background-attachment: fixed;
}
        
.content-container {
	width: 90%;
	width: calc(100% - 5vw);
    /*max-width: 1800px;*/
    height: 90%;
    display: flex;
    position: relative;
}
        
.vertical-menu-container {
    width: 200px;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 10px 0;
	position: relative;
}

.vertical-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
	padding-right: 10px;
	position: relative;
}

.vertical-menu:before{
	content: '';
	position: absolute;
	background: url('../img/menu/menu_line.webp');
	background-repeat: no-repeat;
	background-size: cover;
	width: 158px;
	height: 300px;
	top: 0;
	left: 0;
	transform: translate(-5%, 100%);
}

.menu-item {
    position: relative;
    display: flex;
    flex-direction: column;
}
      
.menu-main {
    color: #fffff;
    text-decoration: none;
    font-size: 1.05rem;
    padding: 16px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    border-left: 4px solid transparent;
	position: relative;
}
  
.menu-main:before{
	content: '';
	position: absolute;
	background: url('../img/menu/menu_dot.webp');
	background-repeat: no-repeat;
	background-size: contain;
	width: 13px;
	height: 13px;
	left: 0;
}
        
.menu-main:hover,
.menu-main.active {
	background: url('../img/menu/select_bg.webp');
	background-repeat: no-repeat;
	background-size: contain;
	background-position: center;
	width: 200px;
	color: #ffffff;
}
        
.menu-text {
	flex: 1;
}
        
.submenu {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
	margin: -8px 0 0 0;
	padding-left: 20px;
}
        
.menu-item.active .submenu {
	max-height: 500px;
}
        
.submenu a {
	display: block;
	padding: 14px 20px 14px 15px;
	color: #ffffff;
	text-decoration: none;
	font-size: 1rem;
	font-weight: 700;
	transition: all 0.3s ease;
	border-left: 2px solid transparent;
	position: relative;
}
        
.submenu a:before {
	content: " ";
	position: absolute;
	left: 25px;
	background-image: -webkit-linear-gradient(bottom, #ffeb6d, #f2f6f4);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}
        
.submenu a:hover,
.submenu a.active {
	font-weight: 900;
    background-image: -webkit-linear-gradient(bottom, #ffeb6d, #f2f6f4);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

.menu-dot{
	display: flex;
	justify-content: center;
	align-items: center;
	margin-right: 12px;
	
}
            
.content-wrapper {
	flex: 1;
    position: relative;
    overflow: hidden;
	margin: 0 auto;
	width: 100%;
	max-width: 1200px;
    /*padding: 20px 0 20px 50px;
    margin-left: 20px;*/
}

.menu-toggle-btn {
	display: none;
}

@media(max-width: 1600px){
	.vertical-menu {
		gap: 0;
		overflow: hidden;
	}
	
	.menu-main {
		font-size: 0.8rem;
		/* padding: 5px 40px; */
	}
	
	.menu-main:before {
		width: 8px;
		height: 8px;
	}
	
	.submenu a {
		font-size: 0.8rem;
	}	
}

/* 响应式设计 */
@media (max-width: 1200px) {
	.content-container {
		flex-direction: column;
        gap: 20px;
   }
            
   .vertical-menu-container {
        width: 100%;
        height: auto;
        padding: 10px 0;
        border-bottom: 1px solid rgba(56, 189, 248, 0.3);
   }
            
   .vertical-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
        overflow-x: auto;
		overflow-y: hidden;
        padding-bottom: 10px;
   }
            
   .menu-item {
        flex: 0 0 auto;
        min-width: 200px;
    }
            
    .content-wrapper {
        border-left: none;
        border-top: 1px solid rgba(56, 189, 248, 0.2);
        margin-left: 0;
        padding: 20px 0;
        margin-top: 20px;
    }            
}

@media (max-width: 768px) {
	.vertical-menu {
		flex-direction: column;
    }
            
    .menu-toggle-btn {
        display: block;
        background: none;
        border: none;
        color: #38bdf8;
        font-size: 1.5rem;
        cursor: pointer;
        position: absolute;
        right: 20px;
        top: 25px;
     }
	 
	 .vertical-menu {
        max-height: 0;
        overflow: hidden;
		transition: max-height 0.5s ease;
     }
            
     .vertical-menu-container.menu-open .vertical-menu {
        max-height: 500px;
     }
	 
	 .menu-main,
	 .submenu a {
		 color: #587daa;
	 }
	 
	 .submenu a:hover,
	 .submenu a.active {
		 font-weight: 900;
		 background-image: -webkit-linear-gradient(bottom, #d59400, #f2f6f4);
		-webkit-background-clip: text;
		-webkit-text-fill-color: transparent;
	 }
	 
}


/*********************************************************
	Swiper (SLIDE - 02 To Others) - CONTENT
*********************************************************/ 
 .submenu-content {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #cbd5e1;
    margin-top: 20px;
    padding-left: 20px;
    border-left: 3px solid rgba(56, 189, 248, 0.3);
    display: none; /* 默认隐藏 */
}
        
.submenu-content.active {
    display: block; /* 激活时显示 */
}
        
.submenu-content h3 {
	color: #38bdf8;
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.content-area {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
	max-width: 1500px;
    height: 100%;
	padding-right: 100px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    pointer-events: none;
}
        
.content-area.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
        
@media (max-width: 1200px){
		.content-area {
			padding-right: 0;
		}
}