/* ===== 全局重置与基础 ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:linear-gradient(135deg,#0a0e27 0%,#1a1145 50%,#0d1b3e 100%);color:#e0e6f0;min-height:100vh;line-height:1.8;overflow-x:hidden}
a{color:#4fc3f7;text-decoration:none;transition:color .3s}
a:hover{color:#81d4fa}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 导航栏 ===== */
.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(10,14,39,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06);padding:12px 0;transition:all .3s}
.navbar .container{display:flex;align-items:center;justify-content:space-between}
.nav-brand{display:flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:700;color:#fff}
.logo-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#4fc3f7,#7c4dff);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.1rem;color:#fff}
.nav-links{display:flex;list-style:none;gap:28px}
.nav-links a{color:#b0b8d0;font-size:.92rem;transition:color .3s;position:relative}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:linear-gradient(90deg,#4fc3f7,#7c4dff);transition:width .3s}
.nav-links a:hover::after{width:100%}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.hamburger span{width:24px;height:2px;background:#fff;transition:all .3s}

/* ===== Glass效果 ===== */
.glass{background:rgba(255,255,255,.04);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);border-radius:16px}
.glass-sm{background:rgba(255,255,255,.05);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1);border-radius:12px}

/* ===== Hero区域 ===== */
.hero{padding:140px 0 80px;text-align:center}
.hero-badge{display:inline-block;padding:6px 20px;border-radius:20px;background:rgba(79,195,247,.12);border:1px solid rgba(79,195,247,.25);color:#4fc3f7;font-size:.85rem;margin-bottom:24px}
.hero h1{font-size:2.8rem;font-weight:800;background:linear-gradient(135deg,#ffffff,#4fc3f7,#7c4dff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px;line-height:1.3}
.hero h4{color:#a0a8c0;margin-bottom:20px;font-weight:400;font-size:1.05rem}
.hero p{max-width:720px;margin:0 auto 30px;color:#8890a0;line-height:1.9;font-size:.95rem}
.hero-buttons{display:flex;gap:16px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 32px;border-radius:10px;font-size:.95rem;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#4fc3f7,#7c4dff);color:#fff;box-shadow:0 4px 20px rgba(79,195,247,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(79,195,247,.45);color:#fff}
.btn-outline{background:transparent;color:#4fc3f7;border:1px solid rgba(79,195,247,.4)}
.btn-outline:hover{background:rgba(79,195,247,.1);transform:translateY(-2px)}
.search-box{max-width:500px;margin:0 auto;display:flex;gap:0;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.1)}
.search-box input{flex:1;padding:12px 18px;background:rgba(255,255,255,.05);border:none;color:#e0e6f0;font-size:.9rem;outline:none}
.search-box input::placeholder{color:#6670a0}
.search-box button{padding:12px 18px;background:linear-gradient(135deg,#4fc3f7,#7c4dff);border:none;color:#fff;cursor:pointer;font-size:1rem}
.search-status{max-width:500px;margin:10px auto 0;min-height:20px;color:#4fc3f7;font-size:.82rem;text-align:left}

/* ===== 仪表盘 ===== */
.dashboard{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.8rem;color:#fff;margin-bottom:8px}
.section-title h5{font-size:1.15rem;color:#c0c8e0;margin-bottom:6px}
.section-title h6{color:#8890a0;font-size:.9rem}
.section-title p{color:#6670a0;font-size:.88rem}
.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{padding:30px 20px;text-align:center;transition:all .3s}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,.2)}
.stat-icon{font-size:2rem;margin-bottom:12px}
.stat-number{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg,#4fc3f7,#7c4dff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:6px}
.stat-label{color:#8890a0;font-size:.85rem}

/* ===== 新闻区域 ===== */
.news-section{padding:60px 0}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{overflow:hidden;transition:all .3s}
.news-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.news-card img{width:100%;height:200px;object-fit:cover}
.card-body{padding:20px}
.card-body h4{color:#fff;font-size:1rem;margin-bottom:10px;line-height:1.5}
.card-body p{color:#8890a0;font-size:.85rem;line-height:1.7;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.card-date{margin-top:12px;color:#4fc3f7;font-size:.8rem}

/* ===== 视频区域 ===== */
.video-section{padding:60px 0}
.video-wrapper{position:relative;max-width:800px;margin:0 auto;overflow:hidden;cursor:pointer}
.video-wrapper img{width:100%;display:block;border-radius:16px}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;background:rgba(79,195,247,.85);display:flex;align-items:center;justify-content:center;transition:all .3s}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:14px 0 14px 24px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-wrapper:hover .play-btn{transform:translate(-50%,-50%) scale(1.1);background:rgba(124,77,255,.85)}

/* ===== 评价区域 ===== */
.reviews-section{padding:60px 0}
.reviews-track{display:flex;gap:20px;overflow-x:auto;padding:10px 0;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.reviews-track::-webkit-scrollbar{height:4px}
.reviews-track::-webkit-scrollbar-thumb{background:rgba(79,195,247,.3);border-radius:2px}
.review-card{min-width:300px;max-width:340px;padding:24px;scroll-snap-align:start;transition:all .3s}
.review-card:hover{transform:translateY(-4px)}
.stars{color:#ffd700;font-size:1.1rem;margin-bottom:12px;letter-spacing:2px}
.review-text{color:#b0b8d0;font-size:.88rem;line-height:1.7;margin-bottom:16px}
.reviewer{display:flex;align-items:center;gap:10px}
.reviewer-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#4fc3f7,#7c4dff);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;color:#fff}
.reviewer-name{color:#a0a8c0;font-size:.85rem}

/* ===== 页脚 ===== */
.footer{background:rgba(0,0,0,.3);border-top:1px solid rgba(255,255,255,.06);padding:50px 0 20px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-brand h5,.footer-col h5{color:#fff;margin-bottom:12px;font-size:1rem}
.footer-brand p{color:#6670a0;font-size:.85rem;line-height:1.7}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:#8890a0;font-size:.85rem}
.footer-col a:hover{color:#4fc3f7}
.footer-col li:not(:has(a)){color:#8890a0;font-size:.85rem}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);color:#6670a0;font-size:.8rem}

/* ===== 面包屑 ===== */
.breadcrumb{padding:90px 0 10px;font-size:.85rem;color:#6670a0}
.breadcrumb a{color:#4fc3f7}
.breadcrumb span{margin:0 6px}

/* ===== 文章页 ===== */
.article-page{padding:30px 0 60px}
.article-content{max-width:860px;margin:0 auto}
.article-content h1{font-size:1.8rem;color:#fff;margin-bottom:16px;text-align:center}
.article-meta{text-align:center;color:#6670a0;font-size:.85rem;margin-bottom:30px}
.article-body{padding:30px;line-height:2}
.article-body h2{font-size:1.4rem;color:#4fc3f7;margin:28px 0 14px;padding-bottom:8px;border-bottom:1px solid rgba(79,195,247,.15)}
.article-body h3{font-size:1.15rem;color:#81d4fa;margin:22px 0 10px}
.article-body h4{font-size:1.05rem;color:#a0c8f0;margin:18px 0 8px}
.article-body p{color:#b0b8d0;margin-bottom:14px;text-indent:2em;font-size:.92rem}
.article-body ul,.article-body ol{margin:12px 0 12px 2em;color:#b0b8d0;font-size:.92rem}
.article-body li{margin-bottom:6px}
.article-body table{width:100%;border-collapse:collapse;margin:16px 0}
.article-body th,.article-body td{border:1px solid rgba(255,255,255,.1);padding:10px 14px;font-size:.88rem;color:#b0b8d0}
.article-body th{background:rgba(79,195,247,.1);color:#4fc3f7;font-weight:600}
.article-body strong{color:#e0e6f0}

/* ===== 动画 ===== */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media(max-width:768px){
  .hamburger{display:flex}
  .nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:rgba(10,14,39,.98);flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links.active{display:flex}
  .hero h1{font-size:1.8rem}
  .hero{padding:120px 0 50px}
  .dashboard-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .review-card{min-width:260px}
  .stat-number{font-size:1.6rem}
  .article-body{padding:20px}
}
@media(max-width:480px){
  .dashboard-grid{grid-template-columns:1fr}
  .hero-buttons{flex-direction:column;align-items:center}
  .hero h1{font-size:1.5rem}
}