/* ===== 全局重置与基础 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;line-height:1.7;color:#e0e6f0;background:linear-gradient(135deg,#0a0e27 0%,#1a1145 40%,#0d2137 70%,#0a0e27 100%);background-attachment:fixed;min-height:100vh;overflow-x:hidden}
a{color:#64b5f6;text-decoration:none;transition:color .3s}
a:hover{color:#90caf9}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}
h1{font-size:2.2rem}h2{font-size:1.8rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.1rem}h6{font-size:1rem}

/* ===== Glassmorphism 基础 ===== */
.glass{background:rgba(255,255,255,.06);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);border-radius:16px}
.glass-card{background:rgba(255,255,255,.06);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:24px;transition:transform .3s,box-shadow .3s}
.glass-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(100,181,246,.15)}

/* ===== 容器 ===== */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}

/* ===== 顶部导航 ===== */
.top-nav{position:sticky;top:0;z-index:1000;background:rgba(10,14,39,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08);padding:0 20px}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-size:1.3rem;font-weight:800;background:linear-gradient(90deg,#64b5f6,#ce93d8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:#b0bec5;font-size:.9rem;font-weight:500;transition:color .3s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:#64b5f6}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#e0e6f0;border-radius:2px;transition:transform .3s}

/* ===== 面包屑 ===== */
.breadcrumb{padding:16px 0;font-size:.85rem;color:#78909c}
.breadcrumb a{color:#64b5f6}
.breadcrumb span{margin:0 8px;color:#546e7a}

/* ===== Hero 区域 ===== */
.hero{position:relative;padding:80px 0 60px;text-align:center;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at center,rgba(100,181,246,.08) 0%,transparent 60%);animation:heroGlow 8s ease-in-out infinite alternate}
@keyframes heroGlow{0%{transform:translate(0,0) scale(1)}100%{transform:translate(5%,3%) scale(1.1)}}
.hero-title{font-size:2.5rem;margin-bottom:16px;background:linear-gradient(90deg,#e0e6f0,#64b5f6,#ce93d8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:1.15rem;color:#90a4ae;max-width:700px;margin:0 auto 32px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:12px;font-size:.95rem;font-weight:600;cursor:pointer;border:none;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#1565c0,#7b1fa2);color:#fff;box-shadow:0 4px 20px rgba(21,101,192,.3)}
.btn-primary:hover{box-shadow:0 6px 30px rgba(21,101,192,.5);transform:translateY(-2px);color:#fff}
.btn-outline{background:transparent;color:#64b5f6;border:1px solid rgba(100,181,246,.4)}
.btn-outline:hover{background:rgba(100,181,246,.1);color:#90caf9}

/* ===== 搜索框 ===== */
.search-box{max-width:560px;margin:0 auto;position:relative}
.search-box input{width:100%;padding:14px 50px 14px 20px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);backdrop-filter:blur(8px);color:#e0e6f0;font-size:1rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#64b5f6}
.search-box button{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#1565c0,#7b1fa2);border:none;color:#fff;width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:1.1rem;display:flex;align-items:center;justify-content:center}
.search-status{margin-top:12px;font-size:.85rem;color:#4fc3f7;min-height:20px;text-align:center}

/* ===== 仪表盘动画 ===== */
.dashboard-panel{position:relative;padding:40px 20px;margin:40px 0;border-radius:20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);overflow:hidden}
.dashboard-title{text-align:center;margin-bottom:30px;font-size:1.3rem;color:#90caf9}
.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.dash-item{text-align:center;padding:20px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06)}
.dash-value{font-size:2rem;font-weight:800;background:linear-gradient(90deg,#4fc3f7,#ce93d8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.dash-label{font-size:.8rem;color:#78909c;margin-top:4px}
.dash-bar{height:4px;border-radius:2px;background:rgba(255,255,255,.08);margin-top:12px;overflow:hidden}
.dash-bar-fill{height:100%;border-radius:2px;background:linear-gradient(90deg,#1565c0,#7b1fa2);animation:barPulse 3s ease-in-out infinite}
@keyframes barPulse{0%,100%{width:30%}50%{width:85%}}

/* ===== 波动线动画 ===== */
.wave-container{position:relative;height:80px;margin:20px 0;overflow:hidden}
.wave-line{position:absolute;bottom:0;width:200%;height:60px;background:repeating-linear-gradient(90deg,transparent,transparent 40px,rgba(100,181,246,.15) 40px,rgba(100,181,246,.15) 42px);animation:waveScroll 4s linear infinite}
@keyframes waveScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.wave-svg{width:100%;height:80px}
.wave-path{fill:none;stroke:url(#waveGrad);stroke-width:2;animation:waveDash 6s linear infinite}
@keyframes waveDash{0%{stroke-dashoffset:0}100%{stroke-dashoffset:-400}}

/* ===== 卡片网格 ===== */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;margin:30px 0}
.card-grid-3{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin:30px 0}

/* ===== 新闻/资讯卡片 ===== */
.news-card{border-radius:16px;overflow:hidden;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);transition:transform .3s,box-shadow .3s}
.news-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(100,181,246,.12)}
.news-card-img{width:100%;height:200px;object-fit:cover;background:#1a1a3e}
.news-card-body{padding:20px}
.news-card-tag{display:inline-block;padding:4px 12px;border-radius:6px;font-size:.75rem;font-weight:600;background:rgba(100,181,246,.15);color:#64b5f6;margin-bottom:10px}
.news-card-title{font-size:1.1rem;margin-bottom:8px;color:#e0e6f0}
.news-card-desc{font-size:.9rem;color:#90a4ae;line-height:1.6}
.news-card-meta{margin-top:12px;font-size:.8rem;color:#546e7a}

/* ===== Video 卡片 ===== */
.video-card{position:relative;border-radius:16px;overflow:hidden;cursor:pointer;aspect-ratio:16/9;background:linear-gradient(135deg,#0d1b2a,#1b2838)}
.video-card-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);opacity:0;transition:opacity .3s}
.video-card:hover .video-card-overlay{opacity:1}
.play-btn{width:60px;height:60px;border-radius:50%;background:rgba(255,255,255,.2);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.4)}
.play-btn::after{content:'';width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card-title{position:absolute;bottom:0;left:0;right:0;padding:16px;background:linear-gradient(transparent,rgba(0,0,0,.8));font-size:.95rem;color:#e0e6f0}

/* ===== 专家/用户评价 ===== */
.review-card{padding:24px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#1565c0,#7b1fa2);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:12px}
.review-name{font-weight:600;color:#e0e6f0;margin-bottom:4px}
.review-role{font-size:.8rem;color:#78909c;margin-bottom:12px}
.review-text{font-size:.9rem;color:#b0bec5;line-height:1.7;font-style:italic}
.review-stars{color:#ffd54f;margin-bottom:8px;letter-spacing:2px}

/* ===== 文章内容 ===== */
.article-content{max-width:800px;margin:0 auto;padding:40px 20px}
.article-content h1{font-size:2rem;margin-bottom:20px;color:#e0e6f0}
.article-content h2{font-size:1.5rem;margin:32px 0 16px;color:#90caf9}
.article-content h3{font-size:1.2rem;margin:24px 0 12px;color:#b39ddb}
.article-content h4{font-size:1.1rem;margin:20px 0 10px;color:#64b5f6}
.article-content h5{font-size:1rem;margin:16px 0 8px;color:#ce93d8}
.article-content h6{font-size:.95rem;margin:16px 0 8px;color:#4fc3f7}
.article-content p{margin-bottom:16px;color:#b0bec5;line-height:1.8}
.article-content blockquote{margin:20px 0;padding:16px 24px;border-left:3px solid #7b1fa2;background:rgba(123,31,162,.08);border-radius:0 12px 12px 0;color:#ce93d8;font-style:italic}
.article-content ul,.article-content ol{margin:16px 0;padding-left:24px}
.article-content li{margin-bottom:8px;color:#b0bec5}
.article-content img{border-radius:12px;margin:24px 0}
.article-meta{display:flex;gap:16px;align-items:center;margin-bottom:24px;font-size:.85rem;color:#78909c;flex-wrap:wrap}
.article-tag{display:inline-block;padding:4px 12px;border-radius:6px;font-size:.75rem;background:rgba(100,181,246,.12);color:#64b5f6}

/* ===== 页脚 ===== */
.site-footer{margin-top:60px;padding:40px 20px;background:rgba(0,0,0,.3);border-top:1px solid rgba(255,255,255,.06)}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h5{color:#e0e6f0;margin-bottom:12px;font-size:1rem}
.footer-col p,.footer-col a{font-size:.85rem;color:#78909c;line-height:1.8}
.footer-col a:hover{color:#64b5f6}
.footer-bottom{padding-top:20px;border-top:1px solid rgba(255,255,255,.06);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:.8rem;color:#546e7a}

/* ===== 统计条 ===== */
.stats-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin:30px 0}
.stat-item{text-align:center;padding:20px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06)}
.stat-value{font-size:1.8rem;font-weight:800;color:#64b5f6}
.stat-label{font-size:.8rem;color:#78909c;margin-top:4px}

/* ===== 功能特性 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin:30px 0}
.feature-item{padding:28px;border-radius:16px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);text-align:center;transition:transform .3s}
.feature-item:hover{transform:translateY(-4px)}
.feature-icon{font-size:2.5rem;margin-bottom:16px}
.feature-title{font-size:1.1rem;font-weight:600;color:#e0e6f0;margin-bottom:8px}
.feature-desc{font-size:.88rem;color:#90a4ae;line-height:1.6}

/* ===== 懒加载占位 ===== */
.lazy-img{opacity:0;transition:opacity .5s}
.lazy-img.loaded{opacity:1}

/* ===== 滚动动画 ===== */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== 移动端响应式 ===== */
@media(max-width:768px){
  html{font-size:14px}
  .hero{padding:50px 0 40px}
  .hero-title{font-size:1.8rem}
  .hero-subtitle{font-size:1rem}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:rgba(10,14,39,.95);backdrop-filter:blur(12px);padding:20px;gap:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links.open{display:flex}
  .nav-toggle{display:flex}
  .card-grid{grid-template-columns:1fr}
  .card-grid-3{grid-template-columns:1fr}
  .dashboard-grid{grid-template-columns:repeat(2,1fr)}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .section{padding:40px 0}
  .article-content{padding:20px 16px}
  .hero-actions{flex-direction:column;align-items:center}
}
@media(max-width:480px){
  .dashboard-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:1fr}
  h1{font-size:1.6rem}h2{font-size:1.4rem}
}

/* ===== 粒子背景 ===== */
.particles{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}
.particle{position:absolute;width:2px;height:2px;background:#64b5f6;border-radius:50%;opacity:.3;animation:particleFloat linear infinite}
@keyframes particleFloat{0%{transform:translateY(100vh) translateX(0);opacity:0}10%{opacity:.3}90%{opacity:.3}100%{transform:translateY(-10vh) translateX(50px);opacity:0}}

/* ===== 内容区域z-index ===== */
.page-content{position:relative;z-index:1}

/* ===== 表格 ===== */
.data-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.9rem}
.data-table th{padding:12px 16px;text-align:left;background:rgba(100,181,246,.1);color:#64b5f6;border-bottom:1px solid rgba(255,255,255,.1);font-weight:600}
.data-table td{padding:10px 16px;border-bottom:1px solid rgba(255,255,255,.05);color:#b0bec5}
.data-table tr:hover td{background:rgba(255,255,255,.03)}

/* ===== 标签 ===== */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag{padding:4px 14px;border-radius:20px;font-size:.8rem;background:rgba(100,181,246,.1);color:#64b5f6;border:1px solid rgba(100,181,246,.2)}

/* ===== 公告条 ===== */
.notice-bar{background:linear-gradient(90deg,rgba(21,101,192,.3),rgba(123,31,162,.3));padding:10px 20px;text-align:center;font-size:.85rem;color:#b39ddb;border-bottom:1px solid rgba(255,255,255,.06)}
.notice-bar strong{color:#ce93d8}

/* ===== 回到顶部 ===== */
.back-to-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;border-radius:12px;background:rgba(21,101,192,.6);backdrop-filter:blur(8px);color:#fff;border:1px solid rgba(100,181,246,.3);cursor:pointer;display:none;align-items:center;justify-content:center;font-size:1.2rem;z-index:999;transition:opacity .3s}
.back-to-top.show{display:flex}