/* ------------- Global Styles extracted from index.html ------------- */
:root { /* Colors */ --bg:#030508;--panel-bg:rgba(255,255,255,0.04);--panel-bg-hover:rgba(255,255,255,0.07);--border-color:rgba(255,255,255,0.1);--text-primary:#EAF1FF;--text-secondary:#A0AEC0;--accent1:#22D1EE;--accent2:#7C4DFF;--glow1:0 0 18px rgba(34,209,238,.6);--glow2:0 0 18px rgba(124,77,255,.6);--focus-ring-color:rgba(34,209,238,.7);/* Typography */--font-primary:"Inter","Noto Sans SC",sans-serif;--font-heading-weight:600;--font-body-weight:400;/* Layout */--max-width:1320px;--base-spacing:8px;--radius-md:16px;--radius-lg:24px;/* Transitions */--transition-fast:.2s ease-out;--transition-smooth:.4s cubic-bezier(.165,.84,.44,1);--transition-gentle:.6s cubic-bezier(.165,.84,.44,1)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{background-color:var(--bg);color:var(--text-primary);font-family:var(--font-primary);font-weight:var(--font-body-weight);line-height:1.7;overflow-x:hidden;position:relative}
body::before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100%;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");background-attachment:fixed;opacity:.025;z-index:-1;pointer-events:none;will-change:background-position}
main{scroll-snap-type:y proximity;overflow-y:scroll;height:100vh;position:relative;z-index:1}
section{min-height:80vh;padding:calc(var(--base-spacing)*12) calc(var(--base-spacing)*4);max-width:var(--max-width);margin:0 auto;display:flex;flex-direction:column;justify-content:center;scroll-snap-align:start;scroll-margin-top:80px;opacity:0;transform:translateY(40px);transition:opacity 1s var(--transition-gentle),transform 1s var(--transition-gentle)}
section.visible{opacity:1;transform:translateY(0)}
@media (min-width:860px){section{padding:calc(var(--base-spacing)*18) calc(var(--base-spacing)*6)}}
h1,h2,h3,h4{font-weight:var(--font-heading-weight);letter-spacing:.01em;line-height:1.3;margin-bottom:calc(var(--base-spacing)*2);color:var(--text-primary)}
h1{font-size:clamp(3.2rem,7.5vw,6rem);background:linear-gradient(45deg,var(--text-primary),var(--accent1) 80%);-webkit-background-clip:text;color:transparent;font-weight:700}
h2{font-size:clamp(2.2rem,5.5vw,4rem);margin-bottom:calc(var(--base-spacing)*5);position:relative;display:inline-block;transition:opacity .8s var(--transition-gentle),transform .8s var(--transition-gentle);opacity:0;transform:translateY(20px)}
section.visible h2{opacity:1;transform:translateY(0);transition-delay:.2s}
h2::after{content:'';position:absolute;left:0;bottom:-8px;height:3px;width:0;background:var(--accent1);transition:width .8s var(--transition-gentle) .4s}
section.visible h2::after{width:50%}
h3{font-size:clamp(1.6rem,3.2vw,2.2rem);color:var(--accent1);margin-bottom:calc(var(--base-spacing)*2)}
h4{font-size:clamp(1.2rem,2.5vw,1.6rem);color:var(--text-primary);font-weight:500;margin-top:calc(var(--base-spacing)*4);margin-bottom:calc(var(--base-spacing)*1.5)}
p{color:var(--text-secondary);max-width:780px;margin-bottom:calc(var(--base-spacing)*2.5)}
p.lead{font-size:clamp(1.1rem,2.2vw,1.3rem);color:var(--text-primary);margin-bottom:calc(var(--base-spacing)*5)}
a{color:var(--accent1);text-decoration:none;transition:color var(--transition-fast),text-shadow var(--transition-fast)}
a:hover{color:#fff;text-shadow:var(--glow1)}
a:focus-visible,button:focus-visible{outline:2px solid var(--focus-ring-color);outline-offset:3px;border-radius:4px}
a:focus:not(:focus-visible),button:focus:not(:focus-visible){outline:none}.cta-button:focus-visible{outline-offset:4px}.vote-button:focus-visible{border-radius:var(--radius-md)}
img,video{max-width:100%;height:auto;display:block;border-radius:var(--radius-md)}
#main-header{position:fixed;top:0;left:0;width:100%;padding:calc(var(--base-spacing)*2) calc(var(--base-spacing)*4);z-index:1000;background:rgba(3,5,8,.7);backdrop-filter:blur(15px);border-bottom:1px solid transparent;transition:background-color var(--transition-smooth),border-color var(--transition-smooth),padding var(--transition-smooth),box-shadow var(--transition-smooth)}
#main-header.scrolled{background:rgba(3,5,8,.85);border-color:var(--border-color);box-shadow:0 2px 15px rgba(0,0,0,.2)}
#main-header nav{max-width:var(--max-width);margin:0 auto;display:flex;justify-content:space-between;align-items:center}
#main-header .logo{font-size:1.2rem;font-weight:600;color:var(--text-primary);text-decoration:none}
#nav-links{display:flex;gap:calc(var(--base-spacing)*5)}
#nav-links a{color:var(--text-secondary);font-size:.95rem;font-weight:500;position:relative;padding:calc(var(--base-spacing)*1) 0}
#nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--accent1);transition:width var(--transition-smooth)}
#nav-links a.active,#nav-links a:hover{color:var(--text-primary)}
#nav-links a.active::after,#nav-links a:hover::after{width:100%}
#burger-menu{display:none;background:none;border:none;color:var(--text-primary);font-size:1.8rem;cursor:pointer;padding:var(--base-spacing)}
@media (max-width:768px){
    #nav-links{
        position:fixed;
        top:0;
        right:-100%;
        width:min(80vw,320px);
        height:100vh;
        padding:calc(var(--base-spacing)*12) calc(var(--base-spacing)*5);
        flex-direction:column;
        gap:calc(var(--base-spacing)*3.5);
        background-color:rgba(5,8,13,.97);
        backdrop-filter:blur(18px);
        -webkit-backdrop-filter: blur(18px);
        transition:right var(--transition-smooth);
        box-shadow:-6px 0 20px rgba(0,0,0,.35);
        z-index: 1000;
    }
    #nav-links.show{
        right:0;
    }
    #nav-links a{
        font-size:1.2rem;
    }
    #burger-menu{
        display:block;
        z-index:1001;
    }
}
.hero{height:100vh;min-height:650px;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;padding:calc(var(--base-spacing)*4);opacity:1;transform:none}

/* 新增：为首页 Hero 添加覆盖整个区域的蒙版 */
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1;
    pointer-events: none;
}

.hero-background{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}.hero-background video{filter:brightness(.45) contrast(1.05) saturate(.9)}.hero .content-layer{position:relative;z-index:2;max-width:900px;animation:fadeInUp 1.4s .4s ease-out both}.hero h1{margin-bottom:calc(var(--base-spacing)*3)}.hero p{color:var(--text-secondary);font-size:clamp(1.1rem,2.2vw,1.35rem);margin-bottom:calc(var(--base-spacing)*6)}
.cta-button{display:inline-block;padding:calc(var(--base-spacing)*2) calc(var(--base-spacing)*6);background:linear-gradient(45deg,var(--accent1),var(--accent2));color:#030508;font-weight:600;font-size:1.05rem;border:none;border-radius:50px;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast);text-shadow:none}.cta-button:hover{transform:translateY(-4px) scale(1.03);box-shadow:var(--glow1),0 10px 25px rgba(0,0,0,.35);color:#000}
.grid{display:grid;gap:calc(var(--base-spacing)*4);margin-top:calc(var(--base-spacing)*6);perspective:1500px}@media (min-width:640px){.grid-cols-2{grid-template-columns:repeat(2,1fr)}}@media (min-width:960px){.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-dynamic{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}}
.card{background:var(--panel-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:calc(var(--base-spacing)*5);backdrop-filter:blur(12px);position:relative;overflow:hidden;transition:transform var(--transition-smooth) .05s,box-shadow var(--transition-smooth),border-color var(--transition-smooth);will-change:transform}.card::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at var(--mouse-x,50%) var(--mouse-y,0%),rgba(255,255,255,.1),transparent 50%);opacity:0;transition:opacity var(--transition-smooth);z-index:1;pointer-events:none}.card:hover{box-shadow:0 18px 35px -12px rgba(0,0,0,.5);border-color:rgba(255,255,255,.2);transform:translateY(-8px) rotateX(var(--rotate-x,0deg)) rotateY(var(--rotate-y,0deg))}.card:hover::before{opacity:1}.card .content{position:relative;z-index:2}.card h3{margin-bottom:calc(var(--base-spacing)*1.5);font-size:1.5rem}.card p{font-size:1rem;color:var(--text-secondary);margin-bottom:0}.card .icon{font-size:2.2rem;color:var(--accent1);margin-bottom:var(--base-spacing)}.card.text-center{text-align:center}.card.text-center img{margin:0 auto calc(var(--base-spacing)*3);border:4px solid var(--border-color);transition:border-color var(--transition-smooth)}.card.text-center:hover img{border-color:rgba(255,255,255,.2)}
.vote-buttons{display:flex;flex-wrap:wrap;gap:calc(var(--base-spacing)*2);margin-top:calc(var(--base-spacing)*4)}.vote-button{flex:1 1 70px;padding:calc(var(--base-spacing)*1.8) 0;background:rgba(34,209,238,.12);color:var(--accent1);font-weight:600;font-size:1.05rem;border:1px solid rgba(34,209,238,.35);border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);position:relative;overflow:hidden}.vote-button:hover{background:var(--accent1);color:var(--bg);box-shadow:var(--glow1);transform:translateY(-3px)}.vote-button:active{transform:translateY(-1px)}.vote-button.selected{background:var(--accent2);color:var(--text-primary);border-color:var(--accent2);box-shadow:var(--glow2);transform:translateY(-2px);cursor:default}.vote-button.selected:hover{background:var(--accent2);box-shadow:var(--glow2);transform:translateY(-2px)}.ripple{position:absolute;border-radius:50%;background-color:rgba(255,255,255,.6);transform:scale(0);animation:ripple-effect .6s linear;pointer-events:none}@keyframes ripple-effect{to{transform:scale(4);opacity:0}}
.table-container{overflow-x:auto;margin-top:calc(var(--base-spacing)*4);border:1px solid var(--border-color);border-radius:var(--radius-lg);background:var(--panel-bg);backdrop-filter:blur(5px)}table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{border-bottom:1px solid var(--border-color);padding:calc(var(--base-spacing)*1.8) calc(var(--base-spacing)*2.5);text-align:left;white-space:nowrap;transition:background-color var(--transition-fast)}th{background-color:rgba(255,255,255,.07);font-weight:600;color:var(--text-primary)}tr:last-child th,tr:last-child td{border-bottom:none}td{color:var(--text-secondary)}td:first-child,th:first-child{padding-left:calc(var(--base-spacing)*4)}td:last-child,th:last-child{padding-right:calc(var(--base-spacing)*4)}tbody tr:hover td{background-color:var(--panel-bg-hover);color:var(--text-primary)}
.route-map{margin:calc(var(--base-spacing)*5) auto;max-width:900px;border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:0 8px 20px rgba(0,0,0,.2);overflow:hidden}
.practice-card{background:rgba(255,255,255,.02);border-left:4px solid var(--accent1);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:calc(var(--base-spacing)*3) calc(var(--base-spacing)*4);margin:calc(var(--base-spacing)*3) 0;font-style:italic}.practice-card p{margin-bottom:calc(var(--base-spacing)*1.5);color:var(--text-secondary);max-width:none;font-size:.95rem;font-style:normal}.practice-card p:last-child{margin-bottom:0}.practice-card strong{color:var(--accent1);font-weight:600;font-style:normal}
.feature-highlight{background:rgba(34,209,238,.05);border-left:3px solid var(--accent2);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:calc(var(--base-spacing)*3) calc(var(--base-spacing)*4);margin:calc(var(--base-spacing)*3.5) 0;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.feature-highlight p{margin-bottom:0;color:var(--text-secondary);font-size:1rem;line-height:1.75}.feature-highlight strong{color:var(--accent1);font-weight:600;display:block;margin-bottom:calc(var(--base-spacing)*1);font-size:1.1rem}.feature-highlight:hover{background:rgba(34,209,238,.08);border-left-color:var(--accent1)}
ul.tool-list{list-style:none;padding-left:0;margin-top:calc(var(--base-spacing)*2)}ul.tool-list li{position:relative;padding-left:calc(var(--base-spacing)*3);margin-bottom:calc(var(--base-spacing)*1);color:var(--text-secondary)}ul.tool-list li::before{content:'→';position:absolute;left:0;color:var(--accent1);font-weight:bold}
#main-footer{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:calc(var(--base-spacing)*10) calc(var(--base-spacing)*4);font-size:.9rem;color:var(--text-secondary);border-top:1px solid var(--border-color);margin-top:calc(var(--base-spacing)*12);background:var(--bg);position:relative;z-index:10}#main-footer p{margin-bottom:calc(var(--base-spacing)*1);max-width:none}#main-footer p:last-child{margin-bottom:0}#main-footer a{color:var(--text-secondary)}#main-footer a:hover{color:var(--text-primary);text-shadow:none}
@keyframes fadeInUp{from{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}section,section.visible h2,section.visible h2::after{opacity:1;transform:none;transition-delay:0ms!important;width:auto}.card:hover{transform:translateY(-8px) rotateX(0deg) rotateY(0deg)}#main-header{transition:none!important}body::before{animation:none!important}}
.text-center{text-align:center}.mt-1{margin-top:calc(var(--base-spacing)*1)}.mt-2{margin-top:calc(var(--base-spacing)*2)}.mt-3{margin-top:calc(var(--base-spacing)*3)}.mt-4{margin-top:calc(var(--base-spacing)*4)}.mt-5{margin-top:calc(var(--base-spacing)*5)}.mt-6{margin-top:calc(var(--base-spacing)*6)}.mb-1{margin-bottom:calc(var(--base-spacing)*1)}.mb-2{margin-bottom:calc(var(--base-spacing)*2)}.mb-3{margin-bottom:calc(var(--base-spacing)*3)}.mb-4{margin-bottom:calc(var(--base-spacing)*4)}.mb-5{margin-bottom:calc(var(--base-spacing)*5)}.mb-6{margin-bottom:calc(var(--base-spacing)*6)}
.vote-stats{border:1px solid var(--border-color);border-radius:var(--radius-md);padding:calc(var(--base-spacing)*3) calc(var(--base-spacing)*4);background:rgba(255,255,255,.03)}.vote-stats h4{margin-top:0;margin-bottom:calc(var(--base-spacing)*2);font-size:1.1rem;color:var(--text-primary)}.vote-stats .stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:calc(var(--base-spacing)*1.5) calc(var(--base-spacing)*3);font-size:.95rem;color:var(--text-secondary)}.vote-stats strong{color:var(--accent1);font-weight:600}
/* --------------------------------------------------------------- */

/* 多页面导航样式增强 */
#nav-links a.current {
    color: var(--text-primary);
    pointer-events: none;
}

#nav-links a.current::after {
    width: 100%;
    background-color: var(--accent1);
}

/* 内页hero区域高度调整 */
.hero.page-hero {
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* 新增：为子页面 Hero 添加覆盖整个区域的蒙版 */
.hero.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1;
    pointer-events: none;
}

/* 修改：移除之前添加到 .content-layer 的蒙版 */
.hero.page-hero .content-layer {
    position: relative;
    z-index: 2;
    padding: calc(var(--base-spacing) * 4);
    border-radius: var(--radius-md);
    max-width: 90%;
}

/* 子页面 Hero 内的标题和文本样式微调 (可选) */
.hero.page-hero h1 {
    background: none;
    -webkit-background-clip: unset;
    color: var(--text-primary);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: calc(var(--base-spacing) * 2);
}

/* 移动端英文标题适配 */
@media (max-width: 768px) {
    .hero.page-hero h1 {
        font-size: clamp(2rem, 4.5vw, 2.5rem); /* 减小标题在移动端的字体大小 */
        margin-top: 60px; /* 增加顶部边距，确保标题不被导航栏遮挡 */
    }
    
    /* 英文版标题调整 */
    html[lang="en-US"] .hero.page-hero h1 {
        font-size: clamp(1.8rem, 4vw, 2.2rem); /* 进一步减小英文标题字体大小 */
        line-height: 1.2; /* 减小行高以适应更多文本 */
        margin-top: 70px; /* 为英文版增加更多顶部空间 */
    }
    
    /* 增加hero区域在移动设备上的高度 */
    html[lang="en-US"] .hero.page-hero {
        min-height: 450px; /* 增加英文版hero区域的最小高度 */
    }
    
    /* 调整英文版副标题 */
    html[lang="en-US"] .hero.page-hero p.lead {
        font-size: clamp(0.9rem, 1.8vw, 1.15rem); /* 减小副标题字体大小 */
        line-height: 1.4;
        margin-top: 5px;
    }
    
    /* 调整英文版页面内容标题 */
    html[lang="en-US"] h3 {
        font-size: clamp(1.4rem, 2.8vw, 1.8rem);
    }
    
    /* 调整卡片和内容区域在英文版的显示 */
    html[lang="en-US"] .card-front h3 {
        font-size: 1.3rem; /* 英文版卡片标题字体大小调整 */
    }
    
    /* 确保标题在视口内完全可见 */
    html[lang="en-US"] section {
        scroll-margin-top: 100px; /* 增加滚动边距，确保标题完全可见 */
    }
}

.hero.page-hero p.lead {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* 页面过渡效果 */
.page-transition {
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 子页面内容区块通用样式 */
.page-content {
    padding-top: calc(var(--base-spacing) * 8);
}

/* 推荐阅读书籍网格 */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: calc(var(--base-spacing) * 4);
}

.book-card {
    aspect-ratio: 3/4;
    overflow: hidden;
    position: relative;
}

.book-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.book-card:hover img {
    transform: scale(1.05);
}

.book-card .book-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: calc(var(--base-spacing) * 3);
    background: rgba(3,5,8,0.85);
    transform: translateY(100%);
    transition: transform var(--transition-smooth);
}

.book-card:hover .book-info {
    transform: translateY(0);
}

/* 公民科学项目手风琴组件 */
.accordion {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: calc(var(--base-spacing) * 2);
    overflow: hidden;
}

.accordion-header {
    padding: calc(var(--base-spacing) * 3);
    background: var(--panel-bg);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.accordion-header:hover {
    background: var(--panel-bg-hover);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth);
    padding: 0 calc(var(--base-spacing) * 3);
}

.accordion.active .accordion-content {
    max-height: 500px;
    padding: calc(var(--base-spacing) * 3);
}

/* 展览图片组 */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    grid-auto-rows: 250px;
    grid-auto-flow: dense;
    gap: calc(var(--base-spacing) * 2);
}

.gallery-item {
    overflow: hidden;
    border-radius: var(--radius-md);
}

.gallery-item.wide {
    grid-column: span 2;
}

.gallery-item.tall {
    grid-row: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* 新增：用于底部探索链接的容器居中 */
.explore-link-container {
    text-align: center;
    margin-top: calc(var(--base-spacing) * 6);
    padding-bottom: calc(var(--base-spacing) * 6);
}

.explore-link-container a {
    display: inline-block;
    padding: calc(var(--base-spacing) * 1.5) calc(var(--base-spacing) * 4);
    background-color: var(--accent2);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.explore-link-container a:hover {
    background-color: color-mix(in srgb, var(--accent2), #fff 15%);
    transform: translateY(-2px);
    text-shadow: none;
}

/* 五蕴卡片样式 - 结合翻转功能与光影效果 */
.skandha-card-container {
    width: 100%;
    perspective: 1000px;
}

.skandha-card {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1),
                box-shadow var(--transition-smooth),
                border-color var(--transition-smooth);
    will-change: transform;
    cursor: pointer;
    border-radius: var(--radius-lg);
}

/* 移动设备下的五蕴卡片样式优化 */
@media (max-width: 768px) {
    .skandha-card-container {
        perspective: none;
        margin-bottom: 20px;
    }
    
    .skandha-card {
        transform-style: flat;
        aspect-ratio: auto;
        height: auto;
        will-change: auto;
    }
    
    .skandha-card .card-face {
        position: relative;
        backface-visibility: visible;
        height: auto;
        display: block;
        width: 100%;
    }
    
    .skandha-card .card-front {
        padding: calc(var(--base-spacing) * 3);
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin-bottom: 0;
    }
    
    .skandha-card .card-back {
        transform: none;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        border-top: none;
    }
    
    /* 移动设备上隐藏卡片背面的标题，避免重复 */
    .skandha-card .card-back h4,
    .skandha-card .card-back p:first-of-type {
        display: none;
    }
    
    /* 移动设备上卡片内容间隔优化 */
    .skandha-card .card-back ul {
        padding-left: calc(var(--base-spacing) * 2);
        margin-top: 0; /* 移除顶部间距，因为标题已隐藏 */
    }
    
    /* 移动端上简化网格显示，确保每个卡片正确显示 */
    .skandha-grid {
        display: block;
        margin-bottom: 20px;
    }
    
    /* 禁用翻转效果 */
    .skandha-card-container.is-flipped .skandha-card,
    .skandha-card-container:hover .skandha-card:not(.is-flipped) {
        transform: none;
    }
    
    /* 禁用光影效果以提高性能 */
    .skandha-card .card-face::before,
    .skandha-card:hover .card-face::before {
        display: none;
    }
    
    .skandha-card:hover .card-face {
        box-shadow: none;
        border-color: var(--border-color);
    }
    
    /* 隐藏移动端上不必要的提示文字 */
    [data-i18n="consciousness_card_instruction"] {
        display: none;
    }
}

/* 卡片正面与背面的公共样式 */
.skandha-card .card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    overflow: hidden;
    transition: box-shadow 0.2s ease-out,
                border-color 0.2s ease-out;
}

/* 光影效果 */
.skandha-card .card-face::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 0%), 
                              rgba(255, 255, 255, 0.1), transparent 50%);
    opacity: 0;
    transition: opacity 0.2s ease-out;
    z-index: 1;
    pointer-events: none;
}

.skandha-card:hover .card-face {
    box-shadow: 0 18px 35px -12px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}

.skandha-card:hover .card-face::before {
    opacity: 1;
}

/* 卡片正面 */
.skandha-card .card-front {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: calc(var(--base-spacing) * 4);
    text-align: center;
    z-index: 2;
}

.skandha-card .card-front h3 {
    margin-bottom: calc(var(--base-spacing) * 1.5);
    font-size: 1.3rem;
    color: var(--accent1);
    position: relative;
    z-index: 2;
}

.skandha-card .card-front p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    position: relative;
    z-index: 2;
}

/* 卡片背面 */
.skandha-card .card-back {
    background-color: var(--panel-bg-hover);
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: calc(var(--base-spacing) * 3.5);
    box-sizing: border-box;
    overflow-y: auto;
    text-align: left;
}

.skandha-card .card-back h4 {
    color: var(--accent1);
    margin-bottom: calc(var(--base-spacing) * 1.5);
    font-size: 1.1rem;
    margin-top: 0;
    position: relative;
    z-index: 2;
}

.skandha-card .card-back p {
    color: var(--text-secondary);
    margin-bottom: calc(var(--base-spacing) * 1.5);
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

.skandha-card .card-back ul {
    list-style-type: disc;
    padding-left: calc(var(--base-spacing) * 3);
    margin-top: calc(var(--base-spacing) * 2);
    margin-bottom: 0;
    position: relative;
    z-index: 2;
}

.skandha-card .card-back li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: calc(var(--base-spacing) * 1);
}

.skandha-card .card-back li:last-child {
    margin-bottom: 0;
}

/* 翻转效果 */
.skandha-card-container.is-flipped .skandha-card {
    transform: rotateY(180deg);
}

.skandha-card-container:hover .skandha-card:not(.is-flipped) {
    transform: translateY(-5px) rotateX(var(--rotate-x, 0deg)) rotateY(var(--rotate-y, 0deg));
}

/* 修改网格布局保持一致，并使第二行居中 */
.skandha-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: calc(var(--base-spacing) * 4);
    margin-top: calc(var(--base-spacing) * 5);
    perspective: 1500px;
}

@media (min-width: 640px) {
    .skandha-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .skandha-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: calc(var(--base-spacing) * 4);
    }
    
    .skandha-grid .skandha-card-container {
        flex-basis: calc(33.333% - calc(var(--base-spacing) * 8 / 3));
        max-width: calc(33.333% - calc(var(--base-spacing) * 8 / 3));
    }
    
    /* 确保最后一行不足3个时能够居中 */
    .skandha-grid::after {
        content: "";
        flex: 0 0 calc(33.333% - calc(var(--base-spacing) * 8 / 3));
        max-width: calc(33.333% - calc(var(--base-spacing) * 8 / 3));
        order: 999; /* 确保添加在最后 */
        visibility: hidden; /* 使其不可见 */
    }
}

@media (min-width: 640px) and (max-width: 1023px) {
    /* 中等屏幕下的样式，仍使用grid但确保最后一行居中 */
    .skandha-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .skandha-grid .skandha-card-container {
        flex-basis: calc(50% - calc(var(--base-spacing) * 4 / 2));
        max-width: calc(50% - calc(var(--base-spacing) * 4 / 2));
    }
}

/* 保留动画效果 */
.skandha-grid .skandha-card-container {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--transition-gentle), transform 0.6s var(--transition-gentle);
}

section.visible .skandha-grid .skandha-card-container {
    opacity: 1;
    transform: translateY(0);
}

section.visible .skandha-grid .skandha-card-container:nth-child(1) { transition-delay: 0.1s; }
section.visible .skandha-grid .skandha-card-container:nth-child(2) { transition-delay: 0.2s; }
section.visible .skandha-grid .skandha-card-container:nth-child(3) { transition-delay: 0.3s; }
section.visible .skandha-grid .skandha-card-container:nth-child(4) { transition-delay: 0.4s; }
section.visible .skandha-grid .skandha-card-container:nth-child(5) { transition-delay: 0.5s; }

/* 如果之前用了 .grid-cols-dynamic，可能需要调整 */
/* @media (min-width:960px){ .grid-cols-dynamic{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))} } */

/* 语言切换器 */
.language-switcher {
  margin-left: 20px;
  display: flex;
  align-items: center;
}

.lang-toggle {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  outline: none;
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.lang-toggle:active {
  transform: translateY(0);
}

.lang-text {
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* 深色模式下的调整 */
@media (prefers-color-scheme: dark) {
  .lang-toggle {
    border-color: rgba(255, 255, 255, 0.15);
  }
  
  .lang-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
  }
}

/* 移动端适配 */
@media (max-width: 768px) {
  .language-switcher {
    margin-top: 15px;
    margin-left: 0;
    justify-content: center;
  }
  
  .lang-toggle {
    padding: 8px 15px;
    font-size: 0.9rem;
  }
}

/* 用于处理文本长度不同时的布局问题 */
[data-i18n] {
  transition: all 0.3s ease;
}

/* 针对特定元素的翻译调整（可根据需要添加） */
h1[data-i18n], h2[data-i18n] {
  min-height: 1.5em; /* 保证切换语言时高度不会剧烈变化 */
}

.cta-button[data-i18n] {
  min-width: 140px; /* 确保按钮宽度足够放置各种语言文本 */
}

/* 移动端性能优化 */
@media (max-width: 768px) {
    /* 简化背景效果 */
    body::before {
        opacity: 0.01; /* 降低噪点背景不透明度 */
    }
    
    /* 取消在移动设备上不必要的动画和效果 */
    .card:hover, 
    .glassmorphism-card:hover,
    .book-card:hover img {
        transform: none;
        box-shadow: none;
    }
    
    .card:hover::before,
    .glassmorphism-card .card-front::before,
    .glassmorphism-card .card-front::after {
        opacity: 0;
    }
    
    /* 禁用移动设备上的部分过渡效果 */
    section {
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    /* 简化滚动快照行为 */
    main {
        scroll-snap-type: none;
    }
    
    /* 提高移动设备上的性能 */
    #main-header {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(3, 5, 8, 0.9);
    }
    
    /* 降低移动设备上文本阴影的复杂度 */
    h1 {
        background: var(--text-primary);
        -webkit-background-clip: text;
    }
    
    /* 简化按钮效果 */
    .cta-button:hover {
        transform: none;
        box-shadow: none;
    }
    
    .vote-button:hover {
        transform: none;
        box-shadow: none;
    }
    
    /* 去除不必要的动态效果 */
    .ripple {
        display: none;
    }
    
    /* 隐藏移动端上不必要的提示文字 */
    [data-i18n="consciousness_card_instruction"] {
        display: none;
    }
}

/* 针对Consciousness页面的特殊调整 */
@media (max-width: 768px) {
    /* 意识探索页面 - 英文版特殊调整 */
    html[lang="en-US"] [data-i18n="consciousness_page_title"] {
        font-size: clamp(1.7rem, 3.8vw, 2rem); /* 更小的标题字体 */
        margin-top: 80px; /* 更大的顶部边距 */
    }
    
    html[lang="en-US"] [data-i18n="consciousness_page_subtitle"] {
        font-size: clamp(0.85rem, 1.7vw, 1.1rem); /* 更小的副标题 */
        line-height: 1.3;
    }
    
    /* 确保页面上的其他卡片在英文版中正确显示 */
    html[lang="en-US"] .skandha-card .card-front h3 {
        font-size: 1.1rem; /* 英文版卡片标题更小 */
        margin-bottom: calc(var(--base-spacing) * 1);
    }
    
    html[lang="en-US"] .skandha-card .card-front p {
        font-size: 0.9rem; /* 英文版卡片描述更小 */
    }
    
    /* 提高hero部分在特定页面的高度 */
    html[lang="en-US"] [data-i18n="consciousness_page_title"] + p.lead {
        padding-bottom: 10px; /* 增加底部内边距以扩展容器 */
    }
    
    /* 调整具有潜在长标题的页面的hero高度 */
    html[lang="en-US"] #hero {
        min-height: 480px;
    }
}