/* ===================== 全局变量定义 - 魔术综合导航站 ===================== */
:root {
    /* 主配色 */
    --bg-main: #0b1324;
    --bg-card: #131c30;
    --bg-header: rgba(11, 19, 36, 0.95);
    --primary-blue: #2574f7;
    --gradient-blue-purple: linear-gradient(90deg,#ffffff,#54a8ff,#b86bff);
    --text-white: #ffffff;
    --text-gray: #b0b8cc;
    --text-light-gray: #7483a3;
    --border-color: rgba(60, 110, 210, 0.18);
    --hover-bg: rgba(40, 100, 220, 0.15);
    --btn-blue: #2472f5;
    --btn-blue-hover: #3b86ff;
    --sidebar-bg: #101a2f;
    /* 圆角、间距 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --transition-speed: 0.25s;
}

/* 亮色模式：全局变量重定义 */
body.light-mode {
    --bg-main: #f3f7fc;
    --bg-card: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.86);
    --text-white: #192538;
    --text-gray: #5a6a82;
    --text-light-gray: #7a8aa2;
    --border-color: rgba(150, 180, 220, 0.35);
    --hover-bg: rgba(0, 60, 180, 0.08);
    --sidebar-bg: #ffffff;
}
/* ===================== 全局重置 ===================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html,body {
    font-family: "Microsoft Yahei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-white);
    background-image: radial-gradient(circle at 92% 10%, rgba(37, 116, 247, 0.08) 0%, transparent 40%);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x:hidden;
}
a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-speed) ease;
}
ul,ol{
    list-style: none;
}
button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-speed) ease;
}
input{
    font-family: inherit;
    border:none;
    outline:none;
}
/* ===================== 顶部导航栏 ===================== */
.top-bar {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 99;
}
.nav-inner{
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display:flex;
    align-items:center;
    justify-content: space-between;
}
.logo{
    display:flex;
    align-items:center;
    gap:8px;
    font-weight:bold;
    font-size: 18px;
}
.nav-menu{
    display:flex;
    gap:32px;
}
.nav-menu a{
    color: var(--text-gray);
    padding: 6px 4px;
}
.nav-menu a.active{
    color: var(--text-white);
    border-bottom: 2px solid var(--primary-blue);
}
.nav-menu a:hover{
    color:white;
}
.nav-right{
    display:flex;
    align-items:center;
    gap: 16px;
}
.btn-primary{
    background-color: var(--btn-blue);
    color:white;
    padding:8px 16px;
    border-radius: var(--radius-sm);
}
.btn-primary:hover{
    background-color: var(--btn-blue-hover);
}
/* ===================== 首页 Hero搜索区块 ===================== */
.hero-section{
    text-align:center;
    padding:40px 20px;
}
.hero-title{
    font-size: 40px;
    font-weight: 700;
}
.hero-title span{
    background: var(--gradient-blue-purple);
    -webkit-background-clip: text;
    color: transparent;
}
.hero-subtitle{
    color: var(--text-gray);
    margin-top: 8px;
    font-size: 17px;
}
.search-wrap{
    max-width: 820px;
    margin: 24px auto 0;
    display:flex;
    gap: 0;
}
.search-input{
    flex: 1;
    height: 48px;
    padding: 0 18px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color:white;
    font-size: 15px;
}
.search-btn{
    height: 48px;
    padding: 0 28px;
    background-color: var(--btn-blue);
    color:white;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: 600;
}
.hot-search-tags{
    margin-top: 14px;
    display:flex;
    gap: 12px;
    justify-content:center;
    font-size: 13px;
    color: var(--text-light-gray);
}
/* ===================== 分类导航卡片行 (首页8个大分类卡片) ===================== */
.category-row{
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 14px;
}
.category-card{
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 18px 14px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-speed);
}
.category-card:hover{
    background-color: var(--hover-bg);
    transform: translateY(-2px);
}
.category-icon{
    font-size: 28px;
    margin-bottom: 8px;
}
.category-name{
    font-weight: 600;
    font-size: 15px;
}
.category-desc{
    font-size: 12px;
    color: var(--text-light-gray);
    margin-top: 4px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}
/* ===================== 三栏内容布局容器：热门网站｜最新收录｜今日热门 ===================== */
.content-3col{
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}
.panel-card{
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 18px;
}
.panel-header{
    display:flex;
    justify-content: space-between;
    align-items:center;
    margin-bottom: 16px;
}
.panel-title{
    font-weight: 600;
    display:flex;
    align-items:center;
    gap: 6px;
}
.panel-more{
    font-size: 13px;
    color: var(--text-light-gray);
}
.site-grid{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.site-item{
    display:flex;
    align-items:center;
    gap: 10px;
    padding: 8px;
    border-radius: var(--radius-sm);
}
.site-item:hover{
    background-color: var(--hover-bg);
}
.site-icon{
    width:32px;
    height:32px;
    border-radius: 6px;
    display:flex;
    align-items:center;
    justify-content:center;
}
.hot-list-item{
    display:flex;
    justify-content:space-between;
    padding: 8px 4px;
    align-items:center;
}
.hot-num{
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background-color: var(--primary-blue);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size: 13px;
}
/* ===================== 底部标签栏 ===================== */
.bottom-tags-bar{
    max-width: 1400px;
    margin: 0 auto 30px;
    padding: 0 24px;
    display:flex;
    gap: 10px;
    flex-wrap: wrap;
}
.tag-item{
    padding: 6px 14px;
    background-color: var(--bg-card);
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid var(--border-color);
}
.tag-item:hover{
    background-color: var(--hover-bg);
}
/* ===================== 二级页面布局（分类页面，带侧边栏） ===================== */
.page-container{
    max-width: 1400px;
    margin: 20px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: 20px;
}
.sidebar-left{
    background-color: var(--sidebar-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 20px;
    height: fit-content;
}
.sidebar-left .menu-item{
    display:flex;
    align-items:center;
    gap: 10px;
    padding: 10px 8px;
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
}
.sidebar-left .menu-item.active{
    background-color: var(--hover-bg);
    color: var(--primary-blue);
}
.main-content{
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 22px;
}
.sidebar-right{
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 20px;
    height: fit-content;
}
.breadcrumb{
    color: var(--text-light-gray);
    font-size: 14px;
    margin-bottom: 16px;
}
.tab-group{
    display:flex;
    gap: 8px;
    margin-bottom: 20px;
}
.tab-btn{
    padding: 7px 12px;
    background-color: var(--bg-main);
    border-radius: var(--radius-sm);
    color: var(--text-gray);
}
.tab-btn.active{
    background-color: var(--primary-blue);
    color:white;
}
.website-list-item{
    display:flex;
    justify-content: space-between;
    align-items:center;
    padding: 16px 12px;
    border-bottom: 1px solid var(--border-color);
}
.website-info{
    display:flex;
    align-items:center;
    gap: 14px;
}
.visit-btn{
    padding: 7px 16px;
    background-color: var(--primary-blue);
    border-radius: var(--radius-sm);
    color:white;
    font-size: 14px;
}
/* 分页样式已统一迁移至 pagination-common.css，此处不再重复定义 */
/* ===================== 页脚 ===================== */
.footer{
    margin-top: 50px;
    border-top: 1px solid var(--border-color);
    padding: 30px 24px;
}
.footer-inner{
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    gap: 20px;
}
.footer-col h4{
    margin-bottom: 14px;
    font-size: 15px;
}
.footer-col a{
    display:block;
    font-size: 13px;
    color: var(--text-light-gray);
    margin: 6px 0;
}
.footer-col a:hover{
    color:white;
}
.copyright-text{
    text-align:center;
    margin-top: 30px;
    font-size: 13px;
    color: var(--text-light-gray);
}
/* ===================== 响应式适配 ===================== */
@media (max-width: 1200px){
    .category-row{
        grid-template-columns: repeat(4, 1fr);
    }
    .content-3col{
        grid-template-columns: 1fr 1fr;
    }
    .page-container{
        grid-template-columns: 220px 1fr;
    }
    .sidebar-right{
        display:none;
    }
}
@media (max-width:768px){
    .category-row{
        grid-template-columns: repeat(2, 1fr);
    }
    .content-3col{
        grid-template-columns: 1fr;
    }
    .page-container{
        grid-template-columns: 1fr;
    }
    .sidebar-left{
        display:none;
    }
    .footer-inner{
        grid-template-columns: 1fr 1fr;
    }
}
/* ============ 粒子背景画布 ============ */
#particles-js {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}
/* 页面内容层级高于粒子 */
.top-bar, main {
    position: relative;
    z-index: 1;
}