/* 联想乐享 WIKI 公共样式 */
*{box-sizing:border-box;margin:0;padding:0}
:root{--blue:#0f4c81;--blue-d:#0a2342;--blue-l:#e8f0fb;--gray:#f7f8fa;--line:#e4e6ea;--text:#1a1a1a;--muted:#666;--brand:#E8380D}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:#fff;font-size:15px;line-height:1.8}

/* topbar */
.topbar{background:var(--blue-d);color:#fff;padding:0 24px;display:flex;align-items:center;height:52px;gap:16px;overflow:hidden}
.topbar .logo{font-size:17px;font-weight:700;letter-spacing:.5px;color:#fff;text-decoration:none;display:flex;align-items:center;gap:8px;flex-shrink:0}
.topbar .logo span{color:#5eb0ff}
.topbar nav{display:flex;gap:6px;font-size:12px;flex:1;overflow-x:auto;scrollbar-width:none}
.topbar nav a{color:rgba(255,255,255,.7);text-decoration:none;white-space:nowrap}
.topbar nav a:hover{color:#fff}
.topbar .badge{flex-shrink:0;background:#5eb0ff;color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:100px}

/* breadcrumb */
.bc{background:var(--gray);border-bottom:1px solid var(--line);padding:8px 40px;font-size:12px;color:var(--muted)}
.bc a{color:var(--muted);text-decoration:none}.bc a:hover{color:var(--blue)}
.bc span{color:var(--blue-d);font-weight:600}
.bc ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:2px;align-items:center}
.bc ol li{display:flex;align-items:center}
.bc ol li+li::before{content:" › ";white-space:pre}

/* article detail layout */
.page-wrap{max-width:1100px;margin:0 auto;padding:40px;display:grid;grid-template-columns:1fr 280px;gap:48px}
article header{margin-bottom:32px}
.cat-tag{display:inline-block;background:var(--blue-l);color:var(--blue);font-size:12px;font-weight:700;padding:3px 10px;border-radius:4px;margin-bottom:12px}
article h1{font-size:26px;font-weight:700;line-height:1.3;margin-bottom:12px}
.article-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.article-meta .hot{background:#fff1f0;color:#d4380d;border:1px solid #ffa39e;font-size:11px;font-weight:700;padding:2px 8px;border-radius:4px}
.leai-btn{display:inline-block;background:#e8230e;color:#fff!important;font-size:12px;font-weight:700;padding:4px 12px;border-radius:4px;text-decoration:none!important;white-space:nowrap}
.leai-btn:hover{background:#c01b0b}
article h2{font-size:19px;font-weight:700;margin:36px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--blue-l)}
article h3{font-size:16px;font-weight:700;margin:24px 0 8px;color:var(--blue)}
article p{margin-bottom:14px;color:#333}
article ul,article ol{margin:0 0 16px 20px}
article li{margin-bottom:6px;font-size:14px;color:#333}
article strong{color:var(--text)}

/* article intro block */
.article-intro{background:linear-gradient(135deg,var(--blue-l) 0%,#c5d8f5 100%);border-radius:10px;padding:18px 22px;font-size:14px;line-height:1.75;margin-bottom:32px;color:#1a3a5c}
.article-meta{margin-bottom:24px}

/* knowledge page info box */
aside .info-box{background:var(--blue-l);border-radius:12px;padding:20px;font-size:13px;margin-bottom:24px}
aside .info-box h3{font-size:13px;font-weight:700;margin-bottom:10px;color:var(--blue)}
aside .info-box ul{list-style:none;display:flex;flex-direction:column;gap:6px;color:#1a3a5c}
aside .info-box li::before{content:"✓ ";color:var(--blue)}

/* common article components */
.tip-box{background:#fffbe6;border:1px solid #ffe58f;border-radius:8px;padding:14px 18px;font-size:13px;margin:20px 0;display:flex;gap:10px}
.tip-box .icon{font-size:18px;flex-shrink:0}
.warn-box{background:#fff1f0;border:1px solid #ffa39e;border-radius:8px;padding:14px 18px;font-size:13px;margin:20px 0;display:flex;gap:10px}
.step-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px}
.step-list li{display:flex;gap:14px;align-items:flex-start;background:var(--gray);border-radius:8px;padding:14px 16px;font-size:14px}
.step-num{width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:20px;font-size:13px}
.spec-table tr{border-bottom:1px solid var(--line)}
.spec-table tr:last-child{border-bottom:none}
.spec-table th{background:var(--blue);color:#fff;padding:10px 14px;text-align:left;font-weight:600;width:140px}
.spec-table td{padding:10px 14px;background:#fff}
.spec-table tr:nth-child(even) td{background:var(--gray)}
.poi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-bottom:28px}
.poi-card{background:#f8fafd;border:1px solid #e2eaf5;border-radius:8px;padding:14px 16px}
.poi-card h4{font-size:13px;font-weight:700;margin-bottom:6px;color:#1a56a0}
.poi-card p{font-size:13px;color:#555;margin:0;line-height:1.6}
.price-tag{display:inline-block;background:var(--brand);color:#fff;font-size:15px;font-weight:700;padding:4px 12px;border-radius:6px}
.price-badge{display:inline-block;background:#e03a3a;color:#fff;font-size:16px;font-weight:700;padding:4px 14px;border-radius:6px;margin:8px 0 4px;letter-spacing:.5px}
.target-box{background:#f6f8fb;border-radius:8px;padding:14px 18px;margin-bottom:24px}
.target-box h3{font-size:14px;font-weight:700;color:var(--blue);margin-bottom:10px}
.target-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:8px 0 0}
.target-list li{background:var(--blue-l);color:#1a56a0;border-radius:20px;padding:4px 12px;font-size:13px}

/* faq */
.faq-section{margin-top:40px}
.faq-section h2{font-size:19px;font-weight:700;margin-bottom:20px;padding-bottom:8px;border-bottom:2px solid var(--blue-l)}
.faq-item{border:1px solid var(--line);border-radius:8px;margin-bottom:12px;overflow:hidden}
.faq-q{background:#f8fafd;padding:14px 16px;font-size:14px;font-weight:700;display:flex;gap:8px;align-items:flex-start;cursor:pointer;margin:0}
.faq-q .qm{color:var(--blue);font-weight:800;flex-shrink:0}
.faq-a{padding:12px 16px;font-size:14px;line-height:1.7;border-top:1px solid var(--line)}
.faq-a p{margin:0}

/* related */
.related{margin-top:40px}
.related h2{font-size:16px;font-weight:700;margin-bottom:14px}
.related-list{list-style:none;display:flex;flex-direction:column;padding:0}
.related-list li{padding:6px 0;border-bottom:1px solid var(--line)}
.related-list li:last-child{border:none}
.related-list a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--blue);text-decoration:none}
.related-list a:hover{text-decoration:underline}

/* article sidebar */
aside{position:sticky;top:20px;align-self:start;max-height:calc(100vh - 40px);overflow-y:auto}
aside .toc{background:var(--gray);border-radius:12px;padding:20px;margin-bottom:24px}
aside .toc h3{font-size:13px;font-weight:700;margin-bottom:12px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}
aside .toc ol{list-style:none;padding:0;display:flex;flex-direction:column;gap:6px}
aside .toc a{font-size:13px;color:var(--text);text-decoration:none;display:block;padding:4px 8px;border-radius:4px}
aside .toc a:hover{background:#e0eaf5;color:var(--blue)}
aside .buy-box{background:linear-gradient(135deg,var(--blue-d) 0%,var(--blue) 100%);border-radius:12px;padding:20px;color:#fff;margin-bottom:16px;text-align:center}
aside .buy-box .p{font-size:28px;font-weight:700;margin-bottom:4px}
aside .buy-box .p-sub{font-size:12px;color:rgba(255,255,255,.7);margin-bottom:16px}
aside .buy-box a{display:block;background:#fff;color:var(--blue);font-size:14px;font-weight:700;padding:10px;border-radius:8px;text-decoration:none}
aside .spec-mini{background:var(--gray);border-radius:12px;padding:16px;font-size:13px}
aside .spec-mini h3{font-size:12px;font-weight:700;margin-bottom:10px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}
aside .spec-mini ul{list-style:none;display:flex;flex-direction:column;gap:0}
aside .spec-mini li{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:7px 0;font-size:12px}
aside .spec-mini li:last-child{border-bottom:none}
aside .spec-mini .k{color:var(--muted)}
aside .spec-mini .v{color:var(--text);font-weight:600;text-align:right;max-width:160px}

/* footer */
.footer{background:var(--gray);border-top:1px solid var(--line);padding:24px 40px;text-align:center;font-size:12px;color:var(--muted);margin-top:60px}
.footer strong{color:var(--text)}

/* ── index page ─────────────────────────────────────── */
body{line-height:1.7}
.hero{background:linear-gradient(135deg,var(--blue-d) 0%,var(--blue) 100%);padding:48px 40px 40px;color:#fff}
.hero-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:center}
.hero h1{font-size:28px;font-weight:700;margin-bottom:8px}
.hero h1 em{color:#5eb0ff;font-style:normal}
.hero p{font-size:14px;color:rgba(255,255,255,.75);margin-bottom:24px}
.hero-search{display:flex;gap:0}
.hero-search input{flex:1;padding:11px 16px;border:none;border-radius:8px 0 0 8px;font-size:16px;outline:none;font-family:inherit}
.hero-search button{padding:11px 20px;background:#5eb0ff;color:#fff;border:none;border-radius:0 8px 8px 0;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap}
.hero-stats{display:flex;gap:32px;margin-top:24px;font-size:13px;color:rgba(255,255,255,.6)}
.hero-stats strong{color:#fff;font-size:18px;font-weight:700;display:block}
.hero-products .label{font-size:11px;font-weight:700;letter-spacing:2px;color:rgba(255,255,255,.45);text-transform:uppercase;margin-bottom:10px}
.hero-pcard{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:13px 15px;text-decoration:none;color:#fff;display:flex;align-items:center;gap:12px;margin-bottom:8px;transition:background .15s}
.hero-pcard:last-child{margin-bottom:0}
.hero-pcard:hover{background:rgba(255,255,255,.15)}
.hero-pcard .icon{font-size:22px;flex-shrink:0}
.hero-pcard .name{font-size:13px;font-weight:600;line-height:1.3;margin-bottom:3px}
.hero-pcard .meta{font-size:12px;color:rgba(255,255,255,.5)}
.hero-pcard .price{color:#5eb0ff;font-weight:700;margin-left:6px}
.cats{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.cats-inner{max-width:1100px;margin:0 auto;padding:0 40px;display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.cats-inner::-webkit-scrollbar{display:none}
.cat-btn{padding:12px 10px;font-size:13px;font-weight:600;color:var(--muted);background:none;border:none;cursor:pointer;white-space:nowrap;border-bottom:2px solid transparent;transition:color .15s}
.cat-btn:hover{color:var(--blue)}
.cat-btn.active{color:var(--blue);border-bottom-color:var(--blue)}
.main{max-width:1100px;margin:0 auto;padding:32px 40px;display:grid;grid-template-columns:200px 1fr;gap:32px}
.sidebar-section{margin-bottom:24px}
.sidebar-section h3{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.sidebar-link{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;border-radius:6px;font-size:13px;color:var(--text);text-decoration:none;margin-bottom:2px}
.sidebar-link:hover{background:var(--blue-l);color:var(--blue)}
.sidebar-link.active{background:var(--blue-l);color:var(--blue);font-weight:600}
.sidebar-count{flex-shrink:0;margin-left:8px;font-size:11px;color:var(--muted);background:var(--gray);padding:1px 7px;border-radius:100px}
.content-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.content-header h2{font-size:18px;font-weight:700}
.content-header .total{font-size:13px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border:1px solid var(--line);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--text);display:flex;flex-direction:column;transition:box-shadow .15s,border-color .15s}
.card:hover{box-shadow:0 4px 16px rgba(0,0,0,.08);border-color:#c5d5e8}
.card-cover{height:120px;background:linear-gradient(135deg,var(--blue-l) 0%,#d4e8ff 100%);display:flex;align-items:center;justify-content:center;font-size:40px;position:relative}
.card-cover .cat-tag{position:absolute;top:10px;left:10px;background:rgba(15,76,129,.85);color:#fff;font-size:11px;font-weight:600;padding:2px 8px;border-radius:4px}
.card-body{padding:16px;flex:1;display:flex;flex-direction:column;gap:6px}
.card-title{font-size:14px;font-weight:700;line-height:1.4}
.card-desc{font-size:12px;color:var(--muted);line-height:1.5;flex:1}
.card-meta{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);margin-top:4px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
.hot-badge{background:#fff1f0;color:#d4380d;border:1px solid #ffa39e;font-size:10px;font-weight:700;padding:1px 6px;border-radius:4px;margin-left:auto}
.new-badge{background:#e6f4ff;color:#096dd9;border:1px solid #91caff;font-size:10px;font-weight:700;padding:1px 6px;border-radius:4px;margin-left:auto}
.pagination{margin-top:32px;display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap}
.page-btn{min-width:36px;height:36px;padding:0 8px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text);white-space:nowrap}
.page-btn:hover:not([disabled]){border-color:var(--blue);color:var(--blue)}
.page-btn.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.page-btn.ellipsis,.page-btn[disabled]{border:none;cursor:default;color:var(--muted)}

/* 摘要块 */
.summary-block{background:linear-gradient(135deg,#e8f0fe,#f0f7ff);border-left:4px solid var(--blue);border-radius:0 12px 12px 0;padding:18px 20px;margin-bottom:28px}
.summary-label{font-size:11px;font-weight:700;color:var(--blue);letter-spacing:1px;margin-bottom:8px;text-transform:uppercase}
.summary-block p{margin:0 0 6px;font-size:14px;line-height:1.7;color:#1a3a5c}
.summary-source{font-size:12px;color:#666}

/* 文章图片 */
.doc-img{margin:20px 0;text-align:center}
.doc-img img{max-width:100%;border-radius:8px;border:1px solid #e8eef6;box-shadow:0 2px 8px rgba(0,0,0,.08)}

/* 文章内标题层级（补充h4/h5） */
article h4{font-size:15px;margin:16px 0 8px;color:#333;font-weight:600}
article h5{font-size:14px;margin:12px 0 6px;color:#555;font-weight:600}
article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
article th{background:var(--blue);color:#fff;padding:10px 12px;text-align:left}
article td{padding:9px 12px;border-bottom:1px solid #e8eef6}
article tr:nth-child(even) td{background:#f8fafd}
article code{background:#f3f4f6;padding:2px 6px;border-radius:4px;font-size:13px;font-family:monospace}

/* 右侧作者卡片 */
.author-card-aside{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid #e8eef6;border-radius:12px;padding:14px;margin-bottom:16px}
.author-card-avatar{font-size:28px;flex-shrink:0}
.author-card-name{font-size:13px;font-weight:700;color:var(--blue)}
.author-card-title{font-size:12px;color:#888;margin-top:2px}

/* 右侧商品卡片 */
.prod-card-aside{background:#fff;border:1px solid #e8eef6;border-radius:12px;padding:16px;margin-bottom:16px}
.prod-card-name{font-size:13px;font-weight:700;color:#1a3a5c;margin-bottom:8px;line-height:1.5}
.prod-card-price{font-size:22px;font-weight:700;color:#e03a3a;margin-bottom:8px}
.prod-card-brief{font-size:12px;color:#666;line-height:1.6;margin-bottom:12px}
.prod-buy-btn{display:block;text-align:center;background:#e03a3a;color:#fff!important;padding:10px;border-radius:8px;font-size:13px;font-weight:600;text-decoration:none!important;margin-bottom:8px}
.prod-buy-btn:hover{opacity:.9}
.leai-btn-aside{display:block;text-align:center;background:var(--blue);color:#fff!important;padding:10px;border-radius:8px;font-size:13px;font-weight:600;text-decoration:none!important;margin-top:8px}
.leai-btn-aside:hover{opacity:.9}

/* 移动端底部悬浮条（商品页+知识页共用） */
.mob-buy-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:100;background:#fff;border-top:1px solid #e8eef6;padding:10px 16px;gap:10px;align-items:center;box-shadow:0 -2px 12px rgba(0,0,0,.1)}
.mob-buy-bar .mob-price{font-size:18px;font-weight:700;color:#e03a3a;flex:1}
.mob-buy-bar .mob-btn-buy{background:#e03a3a;color:#fff!important;padding:10px 20px;border-radius:8px;font-size:14px;font-weight:700;text-decoration:none!important;white-space:nowrap}
.mob-buy-bar .mob-btn-ai{background:var(--blue);color:#fff!important;padding:10px 16px;border-radius:8px;font-size:13px;font-weight:600;text-decoration:none!important;white-space:nowrap}
.mob-buy-bar .mob-btn-full{flex:1;text-align:center}

@media(max-width:768px){
  .topbar{padding:0 16px}
  .topbar nav{display:none}
  .topbar .badge{font-size:10px;padding:2px 8px}
  .bc{padding:8px 20px}
  /* 知识页/商品页：aside全部隐藏 */
  .page-wrap{grid-template-columns:1fr;padding:20px}
  aside{display:none}
  /* 商品页移动端：article正常顺序，aside隐藏 */
  .page-wrap.is-product{display:block;padding:16px;padding-bottom:72px}
  /* 底部悬浮条显示 */
  .mob-buy-bar{display:flex}
  /* 知识页底部留出悬浮条空间 */
  .page-wrap.know-page{padding-bottom:72px}
  .poi-grid{grid-template-columns:1fr}
  /* index */
  .hero{padding:32px 20px}
  .hero-inner{grid-template-columns:1fr}
  .hero-products{display:none}
  .main{grid-template-columns:1fr;padding:20px}
  .sidebar{display:none}
  .grid{grid-template-columns:1fr 1fr}
  .cats-inner{padding:0 20px}
  .footer{padding:20px}
}
@media(max-width:480px){.grid{grid-template-columns:1fr}}

/* 分类列表页 */
.cat-listing{max-width:1100px;margin:0 auto;padding:40px}
.cat-listing h1{font-size:24px;font-weight:700;margin-bottom:8px}
.cat-desc{font-size:14px;color:var(--muted);margin-bottom:24px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card-grid .card{border:1px solid var(--line);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--text);display:flex;flex-direction:column;transition:box-shadow .15s}
.card-grid .card:hover{box-shadow:0 4px 16px rgba(0,0,0,.08);border-color:#c5d5e8}
.card-grid .card a{text-decoration:none;color:inherit;display:block;padding:20px}
.card-grid .card h3{font-size:15px;font-weight:600;line-height:1.4;margin-bottom:8px;color:var(--text)}
.card-grid .card p{font-size:13px;color:var(--muted);line-height:1.5}
.page-prev,.page-next{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--blue);text-decoration:none}
.page-prev:hover,.page-next:hover{background:var(--blue-l)}
.page-info{font-size:13px;color:var(--muted);margin:0 12px}
/* 文章内链导航 */
.article-nav{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;margin-top:24px;border-top:1px solid var(--line)}
.article-nav .nav-prev,.article-nav .nav-next{display:inline-block;padding:8px 16px;border:1px solid var(--line);border-radius:8px;font-size:13px;color:var(--blue);text-decoration:none;max-width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-nav .nav-prev:hover,.article-nav .nav-next:hover{background:var(--blue-l);border-color:var(--blue)}
.article-nav .nav-next{margin-left:auto}
.related-articles{margin-top:24px}
.related-articles h2{font-size:18px;font-weight:600;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--brand)}
.related-articles ul{list-style:disc;padding-left:20px}
.related-articles li{margin-bottom:8px}
.related-articles li a{font-size:14px;color:var(--blue);text-decoration:none}
.related-articles li a:hover{text-decoration:underline}

@media(max-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}.cat-listing{padding:20px}}
@media(max-width:480px){.card-grid{grid-template-columns:1fr}}