/* ============================================
   Article Detail Page - 文章详情页
   ============================================ */
body{padding-top:66px;background:#f5f6fa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;}

/* ===== Reading Progress Bar ===== */
.art-progress{position:fixed;top:66px;left:0;width:100%;height:3px;z-index:99999;pointer-events:none;}
.art-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ent-primary,#0b4da2),#1a7a5c,#c0392b);transition:width .08s linear;border-radius:0 2px 2px 0;}

/* ===== Breadcrumb ===== */
.art-bread{background:#fff;border-bottom:1px solid var(--ent-line);padding:14px 0;font-size:13px;color:var(--ent-sub);}
.art-bread .ent-wrap{display:flex;align-items:center;flex-wrap:wrap;}
.art-bread a{color:var(--ent-sub);text-decoration:none;transition:color .2s;}
.art-bread a:hover{color:var(--ent-primary);}
.art-bread .sep{margin:0 8px;color:#ccc;}
.art-bread .cur{color:var(--ent-primary);font-weight:500;}

/* ===== Main Section ===== */
.art-section{padding:30px 0 60px;}
.art-layout{display:flex;gap:40px;align-items:flex-start;}

/* ===== Main Content Card ===== */
.art-main{flex:1;min-width:0;}

/* ===== Article Header ===== */
.art-header{margin-bottom:28px;}
.art-cat-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 16px;border-radius:20px;font-size:12px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--ent-primary,#0b4da2),#1a7a5c);margin-bottom:14px;text-decoration:none;transition:opacity .2s;}
.art-cat-badge:hover{opacity:.9;color:#fff!important;}
.art-header h1{font-size:28px;font-weight:800;color:#1b2431;line-height:1.35;margin:0 0 16px;}
.art-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:13px;color:#999;padding-bottom:20px;border-bottom:1px solid #eef0f4;}
.art-meta span{display:inline-flex;align-items:center;gap:5px;}
.art-meta i{font-size:14px;}

/* ===== Article Body Wrap ===== */
.art-body-wrap{background:#fff;border:1px solid #eef0f4;border-radius:16px;padding:44px 48px;box-shadow:0 2px 20px rgba(0,0,0,.04);}

/* ===== Article Body Typography ===== */
.art-body{font-size:16px;line-height:1.9;color:#3a3a3a;overflow-wrap:break-word;word-break:break-word;}
.art-body img{max-width:100%;height:auto;border-radius:10px;margin:20px 0;box-shadow:0 4px 16px rgba(0,0,0,.06);display:block;}
.art-body p{margin:0 0 18px;}
.art-body h2{font-size:24px;color:#1b2431;margin:36px 0 16px;font-weight:700;padding-bottom:10px;border-bottom:2px solid #f0f2f5;}
.art-body h3{font-size:20px;color:#1b2431;margin:30px 0 12px;font-weight:600;}
.art-body h4{font-size:17px;color:#1b2431;margin:26px 0 10px;font-weight:600;}
.art-body ul,.art-body ol{padding-left:24px;margin:0 0 18px;}
.art-body li{margin-bottom:8px;}
.art-body ul li{list-style:disc;}
.art-body ol li{list-style:decimal;}
.art-body blockquote{border-left:4px solid var(--ent-primary,#0b4da2);padding:14px 22px;margin:20px 0;background:#f6f8fb;border-radius:0 10px 10px 0;color:#666;font-style:italic;}
.art-body a{color:var(--ent-primary,#0b4da2);text-decoration:underline;}
.art-body a:hover{color:#ff7a18;}
.art-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;}
.art-body table th,.art-body table td{border:1px solid #e0e3e8;padding:10px 14px;text-align:left;}
.art-body table th{background:#f6f8fb;font-weight:600;color:#333;}
.art-body pre{background:#1e293b;color:#e2e8f0;padding:20px 24px;border-radius:10px;overflow-x:auto;font-size:14px;line-height:1.6;margin:20px 0;}
.art-body code{font-family:Consolas,Monaco,"Courier New",monospace;}
.art-body p code,.art-body li code{background:#f0f2f5;padding:2px 8px;border-radius:4px;color:#e74c3c;font-size:13px;}
.art-body iframe{max-width:100%;border-radius:8px;}

/* ===== File Download ===== */
.art-file{margin-top:28px;padding:16px 20px;background:#f6f8fb;border-radius:10px;font-size:14px;display:flex;align-items:center;gap:10px;border:1px dashed #d0d5dd;}
.art-file i{color:var(--ent-primary,#0b4da2);font-size:18px;}
.art-file a{color:var(--ent-primary,#0b4da2);text-decoration:none;font-weight:500;}
.art-file a:hover{text-decoration:underline;}

/* ===== Tags ===== */
.art-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:24px;border-top:2px solid #f0f2f5;}
.art-tag-label{font-size:13px;color:#999;display:inline-flex;align-items:center;gap:5px;}
.art-tag{display:inline-block;padding:6px 16px;font-size:12px;color:var(--ent-primary,#0b4da2);background:rgba(11,77,162,.07);border-radius:20px;text-decoration:none;transition:all .25s;font-weight:500;}
.art-tag:hover{background:var(--ent-primary,#0b4da2);color:#fff!important;transform:translateY(-1px);}

/* ===== Copyright Notice ===== */
.art-copyright-notice{margin-top:24px;padding:16px 20px;background:#f8f9fc;border-radius:10px;font-size:13px;color:#888;display:flex;align-items:center;flex-wrap:wrap;gap:6px;border:1px solid #eef0f4;}
.art-copyright-notice i{color:var(--ent-primary,#0b4da2);font-size:16px;flex-shrink:0;}
.art-copyright-notice strong{color:#555;font-weight:600;margin-right:4px;}
.art-copyright-notice a{color:var(--ent-primary,#0b4da2);text-decoration:none;word-break:break-all;}
.art-copyright-notice a:hover{text-decoration:underline;}

/* ===== Related Reading ===== */
.art-related{margin-top:24px;padding-top:20px;border-top:2px solid #f0f2f5;}
.art-related-title{font-size:16px;font-weight:700;color:#1b2431;margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.art-related-list{margin:0;padding:0;list-style:none;}
.art-related-list li{margin-bottom:10px;}
.art-related-list li a{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#f8f9fc;border-radius:8px;color:#444;font-size:14px;text-decoration:none;transition:all .25s;border:1px solid transparent;}
.art-related-list li a:hover{background:#f0f4ff;color:var(--ent-primary,#0b4da2);border-color:rgba(11,77,162,.1);transform:translateX(4px);}

/* ===== Prev/Next ===== */
.art-nav{display:flex;gap:20px;margin-top:30px;}
.art-nav-link{flex:1;display:flex;flex-direction:column;padding:20px 24px;border:1px solid #eef0f4;border-radius:12px;text-decoration:none;color:inherit;transition:all .3s;background:#fff;}
.art-nav-link:hover{border-color:var(--ent-primary,#0b4da2);box-shadow:0 6px 20px rgba(11,77,162,.1);transform:translateY(-2px);}
.art-nav-link.disabled{opacity:.4;cursor:default;pointer-events:none;}
.art-nav-link.disabled:hover{transform:none;box-shadow:none;border-color:#eef0f4;}
.art-nav-label{font-size:12px;color:var(--ent-primary,#0b4da2);font-weight:600;margin-bottom:6px;display:flex;align-items:center;gap:6px;text-transform:uppercase;letter-spacing:.5px;}
.art-nav-title{font-size:14px;color:#444;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.art-nav-link:hover .art-nav-title{color:#1b2431;}
.art-nav-right{text-align:right;}
.art-nav-right .art-nav-label{justify-content:flex-end;}

/* ===== Comments ===== */
.art-comments{margin-top:36px;}
.art-comments-inner{background:#fff;border:1px solid #eef0f4;border-radius:16px;padding:32px 36px;box-shadow:0 2px 20px rgba(0,0,0,.04);}
.art-comments h3{font-size:18px;font-weight:700;color:#1b2431;margin:0 0 20px;display:flex;align-items:center;gap:8px;}
.art-comment-item{padding:18px 0;border-bottom:1px dashed #f0f2f5;}
.art-comment-item:last-child{border-bottom:0;}
.art-comment-head{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.art-comment-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--ent-primary,#0b4da2),#1a7a5c);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex-shrink:0;}
.art-comment-user{font-size:14px;font-weight:600;color:#333;}
.art-comment-time{font-size:12px;color:#aaa;margin-left:auto;}
.art-comment-content{font-size:14px;color:#555;line-height:1.7;padding-left:48px;}
.art-comment-reply{background:#f6f8fb;border-radius:8px;padding:14px 18px;margin:12px 0 0 48px;font-size:13px;color:#666;border-left:3px solid var(--ent-primary,#0b4da2);}
.art-comment-reply strong{color:#333;}
.art-comment-pager{margin-top:20px;display:flex;justify-content:center;}

/* ===== Sidebar ===== */
.art-sidebar{width:330px;flex-shrink:0;}
.art-side-widget{background:#fff;border:1px solid #eef0f4;border-radius:14px;margin-bottom:22px;overflow:hidden;transition:box-shadow .3s;box-shadow:0 2px 12px rgba(0,0,0,.04);}
.art-side-widget:hover{box-shadow:0 4px 20px rgba(0,0,0,.08);}
.art-side-title{font-size:16px;font-weight:700;padding:16px 20px;margin:0;background:linear-gradient(135deg,#f0f4ff,#fff);border-bottom:2px solid #e8ecf5;display:flex;align-items:center;gap:10px;color:#1b2431;letter-spacing:.3px;position:relative;}
.art-side-title::before{content:'';width:4px;height:20px;background:linear-gradient(180deg,var(--ent-primary,#0b4da2),#1a7a5c);border-radius:2px;flex-shrink:0;}
.art-side-body{padding:6px 0;}
.art-side-menu li a{display:block;padding:12px 20px;font-size:15px;color:#444;border-bottom:1px solid #f5f5f5;transition:all .2s;}
.art-side-menu li:last-child a{border-bottom:0;}
.art-side-menu li a:hover,.art-side-menu li.curr>a{background:#f6f8fb;color:var(--ent-primary,#0b4da2);font-weight:500;}
.art-side-menu .sub a{padding-left:34px;color:#888;font-size:13px;}
.art-new-item{display:flex;padding:0;}
.art-new-item a{display:flex;align-items:flex-start;gap:10px;padding:12px 20px;border-bottom:1px solid #f0f0f0;transition:all .25s;text-decoration:none;flex:1;min-width:0;}
.art-new-item:last-child a{border-bottom:0;}
.art-new-item a:hover{background:linear-gradient(135deg,#f6f9ff,#eef3fb);}
.art-rank-num{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;font-size:11px;font-weight:800;color:#fff;border-radius:6px;transition:all .3s;line-height:1;box-shadow:0 2px 6px rgba(0,0,0,.12);margin-top:2px;}
.art-new-item a:hover .art-rank-num{transform:scale(1.15);box-shadow:0 3px 10px rgba(0,0,0,.2);}
.art-new-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px;}
.art-new-title{font-size:13px;font-weight:600;color:#222;line-height:1.4;transition:color .2s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.art-new-item a:hover .art-new-title{color:var(--ent-primary,#0b4da2);}
.art-new-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:#b0b0b0;}
.art-new-dot{width:3px;height:3px;border-radius:50%;background:#d0d0d0;flex-shrink:0;}
/* rank-i: individual gradient colors */
.art-rank-1{background:linear-gradient(135deg,#0b4da2,#1a6bc4);}
.art-rank-2{background:linear-gradient(135deg,#27ae60,#2ecc71);}
.art-rank-3{background:linear-gradient(135deg,#d35400,#e67e22);}
.art-rank-4{background:linear-gradient(135deg,#8e44ad,#9b59b6);}
.art-rank-5{background:linear-gradient(135deg,#c0392b,#e74c3c);}

/* ===== Article Banner ===== */
.art-banner{position:relative;width:100%;min-height:300px;display:flex;align-items:center;justify-content:center;overflow:hidden;background-size:cover;background-position:center;background-repeat:no-repeat;}
.art-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,22,52,.85) 0%,rgba(11,60,120,.7) 50%,rgba(6,22,52,.9) 100%);z-index:1;pointer-events:none;}
.art-banner::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;/* background:linear-gradient(to top,#f7f9fc,transparent); */z-index:2;pointer-events:none;}
.art-banner-label{font-size:11px;font-weight:600;color:rgba(255,255,255,.5);text-transform:uppercase;letter-spacing:3px;margin-bottom:8px;}
.art-banner-inner{position:relative;z-index:3;padding:32px 20px;width:92%;max-width:1600px;margin:0 auto;}
.art-banner h1{font-size:36px;font-weight:700;color:#fff;margin:14px 0 0;letter-spacing:.5px;line-height:1.3;word-break:break-word;}
.art-banner .art-cat-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 16px;border-radius:20px;font-size:12px;font-weight:600;color:#fff;background:rgba(255,255,255,.15);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.12);text-decoration:none;transition:all .25s;}
.art-banner .art-cat-badge:hover{background:rgba(255,255,255,.25);color:#fff!important;transform:translateY(-1px);}
.art-banner-desc{font-size:15px;color:rgba(255,255,255,.65);margin:12px 0 0;max-width:720px;line-height:1.6;word-break:break-word;}

/* ===== Voice Reading Button ===== */
.art-voice-btn{display:inline-flex!important;align-items:center;gap:5px;cursor:pointer;color:var(--ent-primary,#0b4da2);transition:all .25s;padding:4px 12px;border-radius:16px;border:1px solid rgba(11,77,162,.2);user-select:none;}
.art-voice-btn:hover{background:var(--ent-primary,#0b4da2);color:#fff!important;border-color:var(--ent-primary,#0b4da2);}
.art-voice-btn.playing{background:#e74c3c;color:#fff!important;border-color:#e74c3c;animation:voicePulse 1.2s ease-in-out infinite;}
@keyframes voicePulse{0%,100%{box-shadow:0 0 0 0 rgba(231,76,60,.4);}50%{box-shadow:0 0 0 8px rgba(231,76,60,0);}}
.art-voice-btn i{margin-right:2px;}
.art-voice-btn.playing i{animation:voiceIcon 1s ease-in-out infinite;}
@keyframes voiceIcon{0%,100%{opacity:1;}50%{opacity:.4;}}

/* ===== Responsive ===== */
@media(max-width:1200px){
.art-sidebar{width:280px;}
.art-banner{min-height:260px;}
.art-banner h1{font-size:32px;}
}
@media(max-width:992px){
.art-sidebar{width:280px;}
.art-body-wrap{padding:36px 32px;}
.art-layout{gap:28px;}
.art-banner{min-height:220px;}
.art-banner h1{font-size:28px;}
}
@media(max-width:900px){
.art-layout{flex-direction:column;}
.art-sidebar{width:100%;max-width:100%;}
.art-banner{min-height:200px;}
.art-banner h1{font-size:28px;}
.art-body-wrap{padding:28px 24px;border-radius:12px;}
.art-comments-inner{padding:28px 24px;}
}
@media(max-width:768px){
body{padding-top:56px;}
.art-progress{top:56px;}
.art-section{padding:18px 0 36px;}
.art-banner{min-height:200px;}
.art-banner h1{font-size:26px;margin:10px 0 0;}
.art-banner-desc{margin:8px 0 0;font-size:14px;}
.art-banner .art-cat-badge{padding:4px 14px;font-size:11px;}
.art-body{font-size:15px;}
.art-body-wrap{padding:24px 20px;}
.art-meta{gap:10px;font-size:12px;flex-wrap:wrap;}
.art-voice-btn{padding:4px 10px;font-size:12px;}
.art-copyright-notice{padding:12px 16px;font-size:12px;}
.art-related-title{font-size:15px;}
.art-related-list li a{padding:8px 14px;font-size:13px;}
.art-nav{flex-direction:column;gap:14px;}
.art-nav-link{padding:16px 20px;}
.art-comments-inner{padding:24px 20px;}
.art-comment-content{padding-left:0;}
.art-comment-reply{margin-left:0;}
.art-tags{gap:6px;}
.art-side-menu li a{padding:10px 18px;font-size:13px;}
.art-new-item a{padding:10px 18px;gap:8px;}
.art-rank-num{width:24px;height:24px;font-size:11px;}
.art-new-title{font-size:13px;}
.art-new-meta{font-size:10px;}
.art-side-title{padding:14px 18px;font-size:15px;font-weight:700;}
}
@media(max-width:600px){
.art-banner{min-height:160px;}
.art-banner h1{font-size:22px;}
.art-banner-desc{font-size:13px;}
.art-body-wrap{padding:20px 14px;border-radius:10px;}
.art-body{font-size:14px;line-height:1.8;}
.art-body h2{font-size:20px;margin:28px 0 12px;}
.art-body h3{font-size:17px;}
.art-body table{font-size:12px;}
.art-body table th,.art-body table td{padding:6px 8px;}
.art-nav-link{padding:14px 16px;}
.art-nav-title{font-size:13px;}
.art-comments h3{font-size:16px;}
.art-comments-inner{padding:20px 14px;border-radius:12px;}
.art-side-widget{margin-bottom:16px;}
.art-side-title{padding:12px 14px;font-size:14px;font-weight:700;}
.art-side-menu li a{padding:9px 14px;font-size:14px;}
.art-new-item a{padding:8px 14px;gap:6px;}
.art-rank-num{width:22px;height:22px;font-size:11px;border-radius:5px;}
.art-new-title{font-size:12px;}
.art-new-meta{font-size:10px;}
.art-copyright-notice{padding:12px 16px;font-size:12px;}
.art-related-title{font-size:14px;}
.art-related-list li a{padding:8px 12px;font-size:13px;}
}
@media(max-width:480px){
body{padding-top:50px;}
.art-progress{top:50px;height:2px;}
.art-banner{min-height:130px;}
.art-banner h1{font-size:18px;margin:8px 0 0;}
.art-banner-desc{font-size:12px;margin:6px 0 0;}
.art-banner .art-cat-badge{padding:3px 12px;font-size:10px;gap:4px;}
.art-banner-label{font-size:10px;letter-spacing:2px;margin-bottom:4px;}
.art-bread{padding:10px 0;font-size:12px;}
.art-bread .sep{margin:0 5px;}
.art-section{padding:14px 0 30px;}
.art-body{font-size:13px;line-height:1.75;}
.art-body h2{font-size:18px;}
.art-body h3{font-size:16px;}
.art-meta{font-size:11px;gap:6px;}
.art-voice-btn{padding:3px 8px;font-size:11px;min-height:30px;}
.art-copyright-notice{padding:10px 14px;font-size:12px;}
.art-related-title{font-size:14px;}
.art-related-list li a{padding:7px 12px;font-size:12px;}
.art-header{margin-bottom:18px;}
.art-nav-link{padding:12px 14px;}
.art-nav-label{font-size:11px;}
.art-nav-title{font-size:12px;}
.art-tags{margin-top:18px;padding-top:14px;}
.art-tag{padding:4px 10px;font-size:11px;}
.art-comment-item{padding:14px 0;}
.art-comment-avatar{width:32px;height:32px;font-size:12px;}
.art-side-widget{border-radius:8px;margin-bottom:14px;}
.art-side-title{padding:10px 12px;font-size:14px;font-weight:700;}
.art-side-menu li a{padding:8px 12px;font-size:13px;}
.art-side-menu .sub a{padding-left:24px;font-size:12px;}
.art-new-item a{padding:8px 12px;gap:8px;}
.art-rank-num{width:24px;height:24px;font-size:11px;border-radius:5px;}
.art-new-title{font-size:12px;}
.art-new-date{font-size:9px;}
}
@media(max-width:400px){
body{padding-top:44px;}
.art-progress{top:44px;}
.art-banner{min-height:130px;}
.art-banner h1{font-size:18px;margin:6px 0 0;}
.art-banner-desc{font-size:11px;}
.art-bread{padding:8px 0;font-size:11px;}
.art-section{padding:10px 0 24px;}
.art-body{font-size:12px;}
.art-body-wrap{padding:16px 12px;}
.art-body h2{font-size:16px;}
.art-body p{margin:0 0 14px;}
.art-meta{font-size:10px;gap:5px;}
.art-voice-btn{padding:2px 6px;font-size:10px;min-height:28px;}
.art-copyright-notice{padding:8px 12px;font-size:11px;flex-direction:column;align-items:flex-start;gap:4px;}
.art-related-title{font-size:13px;}
.art-related-list li a{padding:6px 10px;font-size:12px;}
.art-nav-link{padding:10px 12px;}
.art-comments-inner{padding:16px 12px;}
.art-side-title{padding:8px 10px;font-size:13px;font-weight:700;}
.art-side-menu li a{padding:7px 10px;font-size:12px;}
.art-new-item a{padding:7px 10px;gap:6px;}
.art-rank-num{width:22px;height:22px;font-size:10px;}
.art-new-title{font-size:11px;}
.art-new-date{display:none;}
}