*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:#f5f7fb;color:#172033}a{text-decoration:none;color:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid #e9edf5}.topin{height:68px;display:flex;align-items:center;gap:28px}.brand{font-size:20px;font-weight:800;letter-spacing:-.5px}.brand b{color:#5b5cf0}.nav{display:flex;gap:20px;margin-left:auto}.nav a{font-size:14px;color:#586174}.nav a:hover{color:#5b5cf0}.hero{padding:70px 0 44px;background:radial-gradient(circle at 20% 0,#e8e8ff 0,transparent 35%),radial-gradient(circle at 90% 10%,#dff7f1 0,transparent 30%)}.hero h1{font-size:clamp(36px,6vw,64px);line-height:1.05;margin:0 0 18px;letter-spacing:-2px}.hero h1 span{background:linear-gradient(90deg,#5b5cf0,#8b5cf6,#0ea5a5);-webkit-background-clip:text;color:transparent}.hero p{max-width:680px;font-size:17px;line-height:1.8;color:#657086}.search{margin-top:28px;display:flex;background:#fff;border:1px solid #e6e9f2;border-radius:16px;padding:7px;box-shadow:0 12px 40px rgba(50,60,100,.08)}.search input{flex:1;border:0;outline:0;padding:13px 14px;font-size:15px;background:transparent}.search button,.btn{border:0;border-radius:11px;background:#5b5cf0;color:#fff;padding:12px 18px;font-weight:700;cursor:pointer}.section{padding:34px 0}.section-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.section-title h2{margin:0;font-size:25px}.section-title p{margin:0;color:#8a93a5;font-size:13px}.cats{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:18px}.pill{padding:8px 13px;border-radius:999px;background:#fff;border:1px solid #e7eaf1;font-size:13px;cursor:pointer}.pill.active,.pill:hover{background:#171b2c;color:#fff}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.card{background:#fff;border:1px solid #e8ebf2;border-radius:18px;padding:18px;transition:.2s;box-shadow:0 5px 20px rgba(40,50,80,.025)}.card:hover{transform:translateY(-3px);box-shadow:0 14px 35px rgba(40,50,80,.09);border-color:#dfe1ff}.site-head{display:flex;gap:12px;align-items:center}.icon{width:45px;height:45px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#ececff,#e8fbf6);font-size:22px;font-weight:800;color:#5b5cf0;overflow:hidden}.icon img{width:100%;height:100%;object-fit:cover}.card h3{font-size:15px;margin:0 0 4px}.tag{font-size:11px;color:#7a8396;background:#f3f5f9;padding:3px 7px;border-radius:99px}.card p{font-size:13px;color:#778196;line-height:1.65;min-height:43px}.go{font-size:13px;color:#5b5cf0;font-weight:700}.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.post{padding:0;overflow:hidden}.cover{height:170px;background:linear-gradient(135deg,#5b5cf0,#0ea5a5);display:flex;align-items:center;justify-content:center;color:#fff;font-size:40px}.cover img{width:100%;height:100%;object-fit:cover}.post-body{padding:18px}.post h3{font-size:18px;margin:0 0 8px}.meta{font-size:12px;color:#9aa2b2}.post p{font-size:13px;color:#707a8d;line-height:1.7}.footer{padding:45px 0;color:#8b93a4;font-size:13px;text-align:center}.article{max-width:850px;margin:38px auto;background:#fff;border:1px solid #e8ebf2;border-radius:20px;padding:clamp(22px,5vw,55px)}.article h1{font-size:36px;margin:8px 0 10px}.content{line-height:1.9;color:#374151;font-size:16px}.content img{max-width:100%;border-radius:12px}.admin{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.side{background:#171b2c;color:#fff;padding:24px 18px}.side h2{margin:0 0 30px}.side a{display:block;padding:11px 13px;border-radius:10px;color:#bfc6d5;margin:4px 0}.side a:hover,.side a.on{background:#292e43;color:#fff}.main{padding:28px}.panel{background:#fff;border:1px solid #e6e9f0;border-radius:16px;padding:20px;margin-bottom:18px}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field label{display:block;font-size:12px;font-weight:700;margin-bottom:6px;color:#596276}.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #dfe3eb;border-radius:9px;outline:0;font:inherit}.field textarea{min-height:110px}.full{grid-column:1/-1}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:11px;border-bottom:1px solid #edf0f5;font-size:13px}.danger{background:#ef4444}.muted{color:#8b93a5}.login{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,#e4e4ff,transparent 35%),#f7f8fc}.loginbox{width:min(420px,calc(100% - 30px));background:#fff;border-radius:20px;padding:30px;border:1px solid #e6e9f0;box-shadow:0 20px 60px rgba(40,50,80,.1)}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.blog-grid{grid-template-columns:1fr 1fr}.admin{grid-template-columns:1fr}.side{display:none}}@media(max-width:600px){.nav{gap:12px}.grid,.blog-grid,.formgrid{grid-template-columns:1fr}.hero{padding-top:45px}.hero h1{font-size:42px}.article h1{font-size:28px}}
.notice{background:#171b2c;color:#fff;padding:9px 0;text-align:center;font-size:13px}.badge{display:inline-block;padding:3px 8px;border-radius:999px;font-size:11px;background:#fff3d6;color:#9a6400;margin-left:5px}.reward{color:#059669;font-weight:800;font-size:12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{padding:16px;border-radius:14px;background:#f7f8fc}.stat b{font-size:24px;display:block}.toolbar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:14px}.tiny{font-size:12px;padding:7px 10px}.editorbar{display:flex;gap:6px;flex-wrap:wrap;padding:8px;background:#f5f6fa;border:1px solid #dfe3eb;border-bottom:0;border-radius:9px 9px 0 0}.editorbar button{border:0;background:#fff;padding:7px 9px;border-radius:6px;cursor:pointer}.editor{min-height:330px;border:1px solid #dfe3eb;border-radius:0 0 9px 9px;padding:14px;outline:none;background:#fff;overflow:auto}.featured{position:relative}.featured:before{content:"推荐";position:absolute;right:12px;top:12px;background:#171b2c;color:#fff;padding:4px 8px;border-radius:99px;font-size:10px;z-index:2}.seo{font-size:12px;color:#8b93a5}.drag{cursor:grab;color:#a0a7b5}.banner{margin:22px auto 0;background:linear-gradient(100deg,#171b2c,#4f46e5);border-radius:18px;padding:24px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px}.banner h3{margin:0 0 6px}.banner p{margin:0;color:#d8dcff;font-size:13px}@media(max-width:600px){.stats{grid-template-columns:1fr 1fr}.banner{display:block}.banner .btn{margin-top:15px}}

/* v3 portal */
:root{--ink:#172033;--muted:#7a8497;--line:#e8ebf2;--brand:#4f46e5;--soft:#f7f8fc}
body{background:#f4f6f9}
.portal-top{background:#101522;color:#cbd2df;font-size:12px}.portal-top .wrap{height:34px;display:flex;align-items:center;justify-content:space-between}
.portal-head{background:#fff;border-bottom:1px solid var(--line)}.portal-headin{min-height:78px;display:flex;align-items:center;gap:30px}
.portal-logo{font-size:25px;font-weight:900;white-space:nowrap}.portal-logo i{font-style:normal;color:var(--brand)}
.portal-search{flex:1;max-width:650px;display:flex;border:2px solid var(--brand);border-radius:10px;overflow:hidden;background:#fff}
.portal-search input{flex:1;border:0;outline:0;padding:12px 15px;font-size:14px}.portal-search button{border:0;background:var(--brand);color:#fff;padding:0 22px;font-weight:700}
.portal-nav{background:#fff;box-shadow:0 2px 8px rgba(30,40,70,.03)}.portal-nav .wrap{display:flex;gap:4px;overflow:auto}.portal-nav a{padding:13px 16px;font-size:14px;white-space:nowrap}.portal-nav a.on,.portal-nav a:hover{color:var(--brand);font-weight:700}
.portal-layout{display:grid;grid-template-columns:190px 1fr;gap:16px;padding-top:16px;align-items:start}
.portal-side{position:sticky;top:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.portal-side h3{font-size:13px;padding:7px 10px;margin:0;color:#9aa2b1}.portal-side a{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:8px;font-size:13px}.portal-side a:hover{background:#f0f1ff;color:var(--brand)}
.portal-main{min-width:0}.quickbar{display:grid;grid-template-columns:1.2fr .8fr;gap:14px;margin-bottom:14px}
.hero-mini,.headline-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.hero-mini{background:linear-gradient(120deg,#171b2c,#34309c);color:#fff}.hero-mini h1{font-size:27px;margin:0 0 8px}.hero-mini p{font-size:13px;color:#d8dbef;line-height:1.7;margin:0}
.headline-box h3{margin:0 0 10px;font-size:15px}.headline-box a{display:block;font-size:13px;padding:5px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-section{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;scroll-margin-top:12px}
.nav-section-head{height:48px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eef0f5}
.nav-section-head h2{font-size:16px;margin:0}.nav-section-head span{font-size:12px;color:#a0a7b5}
.compact-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.compact-site{min-width:0;padding:14px;border-right:1px solid #f0f2f6;border-bottom:1px solid #f0f2f6;display:flex;gap:10px;position:relative;transition:.15s}
.compact-site:hover{background:#fafaff}.compact-icon{width:36px;height:36px;border-radius:9px;flex:0 0 36px;background:#f0f1ff;display:grid;place-items:center;color:var(--brand);font-weight:800;overflow:hidden}.compact-icon img{width:100%;height:100%;object-fit:cover}
.compact-info{min-width:0}.compact-title{display:flex;align-items:center;gap:5px;font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.compact-desc{font-size:11px;color:#8a93a4;margin-top:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hotmark{font-size:9px;background:#fff0ed;color:#ef5b45;padding:2px 5px;border-radius:4px}.rewardmark{font-size:9px;background:#ecfdf5;color:#059669;padding:2px 5px;border-radius:4px}
.article-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px}.article-line{padding:10px 0;border-bottom:1px dashed #e6e9ef;font-size:13px;display:flex;justify-content:space-between;gap:15px}.article-line time{color:#a2a9b5;font-size:11px;white-space:nowrap}
@media(max-width:1050px){.compact-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:800px){.portal-layout{grid-template-columns:1fr}.portal-side{position:static;display:flex;overflow:auto}.portal-side h3{display:none}.portal-side a{white-space:nowrap}.quickbar{grid-template-columns:1fr}.compact-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.portal-headin{display:block;padding:14px 0}.portal-search{margin-top:12px}.compact-grid{grid-template-columns:1fr}.article-strip{grid-template-columns:1fr}}

/* ===== v3.1 refined portal ===== */
:root{--brand:#5147e8;--brand2:#7367f0;--bg:#f6f7fa;--ink:#182033;--muted:#8891a3;--line:#e9ecf2}
body{background:var(--bg);color:var(--ink)}
.portal-top{background:#151a27}.portal-top .wrap{height:30px}
.portal-head{border:0}.portal-headin{min-height:70px;gap:26px}.portal-logo{font-size:24px;letter-spacing:-.7px}.portal-search{height:44px;max-width:720px;border:1px solid #dfe3eb;border-radius:10px;box-shadow:0 2px 10px rgba(35,42,70,.04)}.portal-search:focus-within{border-color:#aaa5ff;box-shadow:0 0 0 3px #eeedff}.portal-search button{min-width:82px}.portal-nav{border-top:1px solid #f1f2f5;border-bottom:1px solid #e9ebf0;box-shadow:none}.portal-nav .wrap{gap:12px}.portal-nav a{padding:12px 8px}.portal-nav a.on{position:relative}.portal-nav a.on:after{content:"";position:absolute;left:8px;right:8px;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.portal-layout{grid-template-columns:154px minmax(0,1fr);gap:14px;padding-top:14px;max-width:1380px}
.portal-side{border:0;border-radius:10px;padding:7px;background:transparent;top:14px}.portal-side h3{padding:7px 9px;font-size:12px}.portal-side a{padding:8px 9px;color:#596174}.portal-side a b{width:18px;color:#7c8495}.portal-side a:hover{background:#fff;box-shadow:0 2px 10px rgba(30,40,70,.05)}
.quickbar{grid-template-columns:minmax(0,1.5fr) minmax(260px,.5fr);gap:12px;margin-bottom:12px}.hero-mini,.headline-box{border:0;border-radius:11px;box-shadow:0 1px 3px rgba(20,30,55,.04)}.hero-mini{padding:20px 22px;background:linear-gradient(115deg,#242941,#4439aa)}.hero-mini h1{font-size:23px;letter-spacing:-.5px}.hero-mini p{line-height:1.55}.headline-box{padding:17px 19px}.headline-box h3{font-size:14px}
.nav-section{border:0;border-radius:11px;margin-bottom:12px;box-shadow:0 1px 3px rgba(20,30,55,.045)}.nav-section-head{height:42px;padding:0 14px}.nav-section-head h2{font-size:14px}.compact-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.compact-site{padding:11px 12px;gap:9px;min-height:62px}.compact-icon{width:34px;height:34px;flex-basis:34px;border-radius:8px;font-size:13px}.compact-title{font-size:12.5px}.compact-desc{font-size:10.5px;margin-top:4px}.hotmark,.rewardmark{flex:0 0 auto}
.article-line{padding:9px 0}.footer{padding:30px 0}
@media(min-width:1500px){.wrap{width:min(1380px,calc(100% - 44px))}.compact-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:1180px){.compact-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:920px){.portal-layout{grid-template-columns:1fr}.portal-side{position:static;display:flex;background:#fff;overflow:auto}.portal-side h3{display:none}.portal-side a{white-space:nowrap}.compact-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:650px){.quickbar{grid-template-columns:1fr}.headline-box{display:none}.compact-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:430px){.compact-grid{grid-template-columns:1fr}.portal-logo{font-size:22px}}

/* ===== v3.2 Premium UI ===== */
:root{--brand:#5b5cf0;--brand2:#8b5cf6;--ink:#151a2d;--muted:#81899b;--bg:#f7f8fc;--card:rgba(255,255,255,.94);--line:#e9ebf3}
*{box-sizing:border-box}
body{background:radial-gradient(circle at 12% -5%,rgba(91,92,240,.08),transparent 24rem),radial-gradient(circle at 88% 5%,rgba(49,183,217,.06),transparent 22rem),var(--bg)}
.portal-top{background:#121625}.portal-top .wrap{height:29px;color:#aeb7ca}
.portal-head{background:rgba(255,255,255,.9);backdrop-filter:blur(14px)}
.portal-headin{min-height:76px}.portal-logo{font-size:25px;font-weight:900;letter-spacing:-1px}.portal-logo i{background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.portal-search{height:46px;max-width:700px;border:1px solid #e0e3ec;background:#f9faff;box-shadow:none;transition:.2s}.portal-search:hover{background:#fff;border-color:#cfd3e1}.portal-search:focus-within{background:#fff;border-color:#aaa7ff;box-shadow:0 7px 25px rgba(91,92,240,.10)}.portal-search input{background:transparent}.portal-search button{margin:4px;border-radius:7px;min-width:76px;background:linear-gradient(135deg,var(--brand),#704ee8)}
.portal-nav{background:rgba(255,255,255,.94)}.portal-nav a{color:#596174}.portal-nav a:hover,.portal-nav a.on{color:#4f50dc}
.portal-layout{grid-template-columns:150px minmax(0,1fr);gap:18px;padding-top:18px}
.portal-side{padding:5px}.portal-side h3{font-weight:700;color:#a2a8b5;letter-spacing:.4px}.portal-side a{margin:2px 0;transition:.16s}.portal-side a:hover{transform:translateX(2px);color:#4f50dc;background:rgba(255,255,255,.95)}
.quickbar{gap:14px;margin-bottom:14px}.hero-mini{position:relative;overflow:hidden;padding:23px 25px;background:linear-gradient(125deg,#1c2238 0%,#35306f 52%,#5448c9 100%);box-shadow:0 10px 30px rgba(36,38,92,.12)}.hero-mini:after{content:"";position:absolute;width:210px;height:210px;border-radius:50%;right:-55px;top:-95px;background:linear-gradient(135deg,rgba(255,255,255,.14),rgba(255,255,255,0))}.hero-mini:before{content:"";position:absolute;width:100px;height:100px;border:1px solid rgba(255,255,255,.12);border-radius:24px;right:100px;bottom:-65px;transform:rotate(30deg)}.hero-mini h1{font-size:25px;position:relative;z-index:1}.hero-mini p{font-size:12.5px;max-width:700px;position:relative;z-index:1}
.headline-box{background:var(--card);box-shadow:0 7px 25px rgba(31,38,67,.045)}.headline-box h3:before{content:"";display:inline-block;width:4px;height:14px;border-radius:3px;background:linear-gradient(var(--brand),var(--brand2));vertical-align:-2px;margin-right:8px}.headline-box a:hover{color:var(--brand)}
.nav-section{background:var(--card);box-shadow:0 5px 22px rgba(30,38,70,.04);transition:.18s}.nav-section:hover{box-shadow:0 9px 28px rgba(30,38,70,.065)}.nav-section-head{height:44px;background:linear-gradient(180deg,#fff,#fdfdff)}.nav-section-head h2{font-size:14.5px}.nav-section-head span{background:#f5f6fa;border-radius:20px;padding:3px 8px}
.compact-grid{background:#f0f2f7;gap:1px}.compact-site{background:#fff;border:0;min-height:66px;padding:12px 13px;transition:.18s}.compact-site:hover{z-index:2;background:#fff;box-shadow:0 5px 20px rgba(55,61,100,.10);transform:translateY(-1px)}.compact-icon{width:36px;height:36px;flex-basis:36px;border-radius:9px;background:linear-gradient(145deg,#f2f1ff,#f7f8ff);border:1px solid #ecebff;color:#5b5cf0}.compact-title{color:#242b3d}.compact-desc{color:#9aa1b0}.hotmark{background:#fff1ef;color:#f05b49}.rewardmark{background:#ecfbf4;color:#15936c}
.article-line{color:#515a6d;transition:.15s}.article-line:hover{color:var(--brand);padding-left:3px}.footer{color:#9ba2b0}

/* v4 tree UI */
.tree-body{margin:0;background:#f7f7f8;color:#202638;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}.tree-side{position:fixed;inset:0 auto 0 0;width:210px;background:linear-gradient(180deg,#315bea,#2448cf);color:#fff;z-index:20}.tree-brand{height:72px;display:flex;align-items:center;padding:0 16px;color:#fff;gap:8px;border-bottom:1px solid rgba(255,255,255,.1)}.brand-shield{width:30px;height:30px;border:2px solid #fff;border-radius:9px;display:grid;place-items:center}.tree-brand b{font-size:16px}.tree-brand small{font-size:10px;opacity:.75}.tree-scroll{height:calc(100vh - 72px);overflow:auto;padding:7px 0 30px}.tree-root{min-height:48px;display:flex;align-items:center;padding:0 10px 0 17px;gap:9px;cursor:pointer}.tree-root:hover{background:rgba(255,255,255,.08)}.tree-ico{width:20px;text-align:center}.tree-name{flex:1;font-size:14px}.tree-arrow{font-size:13px}.pencil{border:0;background:rgba(255,255,255,.13);color:inherit;width:25px;height:25px;border-radius:6px;cursor:pointer;opacity:0}.tree-root:hover .pencil,.tree-child:hover .pencil{opacity:1}.tree-children{background:rgba(11,35,130,.28);padding:4px 0}.collapsed .tree-children{display:none}.tree-child{min-height:38px;padding:0 10px 0 48px;color:#e4e9ff;display:flex;align-items:center;font-size:13px}.tree-child span{flex:1}.tree-child:hover{background:rgba(8,27,107,.3);color:#fff}.tree-add,.root-add{width:calc(100% - 22px);margin:5px 11px;border:1px dashed rgba(255,255,255,.3);background:transparent;color:#e2e8ff;border-radius:7px;padding:8px;cursor:pointer}.root-add{margin-top:10px}.tree-main{margin-left:210px}.tree-top{height:66px;background:#fff;border-bottom:1px solid #eaecf0;display:flex;align-items:center;gap:24px;padding:0 20px;position:sticky;top:0;z-index:10}.tree-top>div:first-child{min-width:230px}.tree-top b{font-size:17px}.tree-top span{font-size:11px;color:#969ead;margin-left:8px}.tree-search{height:39px;max-width:520px;flex:1;border:1px solid #e1e4eb;border-radius:9px;display:flex;align-items:center;background:#f8f9fb}.tree-search input{border:0;outline:0;background:transparent;flex:1;padding:0 13px}.top-actions{margin-left:auto;display:flex;gap:13px;align-items:center;font-size:13px}.admin-badge{background:#fff3d9!important;color:#a46b00!important;padding:5px 8px;border-radius:6px}.tree-content{padding:18px 20px 45px}.resource-sec{margin-bottom:26px;scroll-margin-top:80px}.resource-head{height:38px;display:flex;align-items:center;justify-content:space-between}.resource-head>div{display:flex;align-items:center;gap:7px}.dot{width:15px;height:15px;background:#3562ee;border-radius:50%}.resource-head b{font-size:14px}.resource-head strong{font-size:13px;color:#667184}.slash{color:#c4c9d2}.add-card{border:1px solid #dfe3eb;background:#fff;color:#5262d4;border-radius:7px;padding:6px 10px;cursor:pointer}.resource-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px 24px}.resource-card{height:82px;background:#fff;border-radius:5px;box-shadow:0 4px 17px rgba(35,43,68,.055);position:relative;transition:.18s}.resource-card:hover{transform:translateY(-2px);box-shadow:0 8px 23px rgba(35,43,68,.10)}.resource-card>a{height:100%;display:flex;align-items:center;padding:12px;color:#242a38}.site-logo{width:43px;height:43px;flex:0 0 43px;border-radius:10px;display:grid;place-items:center;overflow:hidden;background:#f4f6fb;margin-right:11px}.site-logo img{width:100%;height:100%;object-fit:contain}.site-logo span{font-weight:800;color:#5261e6}.site-copy{min-width:0;flex:1}.site-copy b{font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.site-copy p{font-size:11px;color:#818999;line-height:1.45;margin:5px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.open-mark{color:#c7ccd5;font-size:19px}.card-pencil{position:absolute;right:4px;top:4px;width:25px;height:25px;border:0;border-radius:6px;background:#edf0ff;color:#4f5ed5;cursor:pointer;opacity:0}.resource-card:hover .card-pencil{opacity:1}.empty-add{height:82px;border:1px dashed #cfd5e2;border-radius:5px;background:#fff8;color:#8991a1;cursor:pointer}.modal-mask{display:none;position:fixed;inset:0;background:rgba(16,22,38,.48);z-index:100;align-items:center;justify-content:center;padding:20px}.modal-mask.show{display:flex}.edit-modal{width:min(480px,100%);background:#fff;border-radius:14px;box-shadow:0 24px 70px rgba(0,0,0,.22);padding:20px}.edit-modal.wide{width:min(570px,100%)}.modal-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-title b{font-size:18px}.modal-title button{border:0;background:transparent;font-size:24px;cursor:pointer}.edit-modal label{display:block;font-size:12px;color:#687184;margin:12px 0}.edit-modal input,.edit-modal textarea,.edit-modal select{width:100%;box-sizing:border-box;margin-top:6px;border:1px solid #dfe3eb;border-radius:8px;padding:10px;outline:0}.modal-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.edit-modal .check{display:flex;align-items:center;gap:7px}.edit-modal .check input{width:auto;margin:0}.modal-actions{display:grid;grid-template-columns:auto 1fr auto auto;gap:9px;margin-top:20px}.modal-actions button{border:0;border-radius:8px;padding:9px 15px;cursor:pointer}.primary{background:#4e5fe1!important;color:#fff}.danger{background:#fff0f0!important;color:#d94747}@media(max-width:1350px){.resource-grid{grid-template-columns:repeat(4,1fr)}}@media(max-width:950px){.resource-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:720px){.tree-side{width:64px}.tree-brand b,.tree-brand small,.tree-name,.tree-arrow,.tree-children,.root-add{display:none}.tree-main{margin-left:64px}.resource-grid{grid-template-columns:repeat(2,1fr)}.tree-top>div:first-child{display:none}}@media(max-width:480px){.resource-grid{grid-template-columns:1fr}.tree-content{padding:12px}}

/* ===== v4.1 Cyber Violet / Tech UI override ===== */
:root{
 --tech:#7c3aed;--tech2:#a855f7;--tech3:#22d3ee;--tech4:#14b8a6;
 --nav:#10101a;--nav2:#171429;--nav3:#241744;
 --page:#f6f5fa;--ink:#171421;--muted:#7d7889;--line:#e8e4ee;
}
.tree-body{background:
 radial-gradient(circle at 73% -10%,rgba(168,85,247,.07),transparent 28rem),
 radial-gradient(circle at 35% 8%,rgba(34,211,238,.045),transparent 22rem),
 var(--page);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif}
.tree-side{width:224px;background:
 radial-gradient(circle at 15% 4%,rgba(34,211,238,.12),transparent 14rem),
 linear-gradient(180deg,#0d0d16 0%,#151222 52%,#1d1230 100%);
 border-right:1px solid rgba(168,85,247,.22);box-shadow:8px 0 35px rgba(28,16,50,.08)}
.tree-brand{height:76px;padding:0 17px;border-bottom:1px solid rgba(255,255,255,.075);gap:10px}
.brand-shield{width:34px;height:34px;border:1px solid rgba(255,255,255,.65);border-radius:10px;color:#fff;box-shadow:inset 0 0 18px rgba(34,211,238,.09),0 0 16px rgba(124,58,237,.12)}
.tree-brand b{font-size:16px;letter-spacing:.1px}.tree-brand small{font-size:10px;color:#9f9ab0;opacity:1}
.tree-scroll{height:calc(100vh - 76px);padding:8px 7px 34px}
.tree-root{min-height:46px;padding:0 8px 0 12px;border-radius:9px;margin:2px 0;gap:10px}
.tree-root:hover{background:rgba(255,255,255,.055)}
.tree-ico{color:#a78bfa;font-size:15px}.tree-name{font-size:13.5px;font-weight:600}.tree-arrow{color:#797488}
.tree-children{background:transparent;padding:2px 0 7px 14px;border-left:1px solid rgba(168,85,247,.18);margin-left:20px}
.tree-child{min-height:35px;padding:0 7px 0 16px;margin:1px 0;border-radius:7px;color:#aaa5b8;font-size:12.5px}
.tree-child:hover{background:rgba(124,58,237,.13);color:#f5f3ff}
.tree-child:target,.tree-child.active{color:#fff;background:linear-gradient(90deg,rgba(124,58,237,.28),rgba(34,211,238,.06))}
.pencil{background:rgba(167,139,250,.12);color:#c4b5fd}.pencil:hover{background:rgba(168,85,247,.24);color:#fff}
.tree-add,.root-add{border-color:rgba(167,139,250,.26);color:#a9a3b7;font-size:11.5px;padding:7px;background:rgba(255,255,255,.018)}
.tree-add:hover,.root-add:hover{color:#fff;border-color:rgba(34,211,238,.38);background:rgba(124,58,237,.10)}
.tree-main{margin-left:224px}
.tree-top{height:70px;padding:0 24px;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(221,216,229,.75);gap:28px}
.tree-top>div:first-child{min-width:220px}.tree-top b{font-size:17px;letter-spacing:-.2px}.tree-top span{font-size:10.5px;color:#9a95a5}
.tree-search{height:40px;max-width:590px;border:1px solid #e3dfea;border-radius:11px;background:#faf9fc;transition:.18s}
.tree-search:focus-within{background:#fff;border-color:#c4b5fd;box-shadow:0 0 0 3px rgba(124,58,237,.07),0 7px 25px rgba(72,42,110,.055)}
.tree-search input{font-size:12.5px}.top-actions{gap:16px;font-size:12.5px}.top-actions a{color:#514b5c}.top-actions a:hover{color:var(--tech)}
.admin-badge{background:linear-gradient(135deg,#f3e8ff,#ecfeff)!important;color:#6d28d9!important;border:1px solid #e9d5ff;padding:5px 9px!important;border-radius:20px!important}
.tree-content{padding:20px 24px 54px}
.resource-sec{margin-bottom:30px;scroll-margin-top:88px}
.resource-head{height:42px}.resource-head>div{gap:8px}.dot{width:10px;height:10px;background:linear-gradient(135deg,var(--tech2),var(--tech3));box-shadow:0 0 0 4px rgba(124,58,237,.065)}
.resource-head b{font-size:14px;font-weight:700}.resource-head strong{font-size:12px;color:#8a8493;font-weight:500}.slash{font-size:11px;color:#c9c3ce}
.add-card{border:1px solid #e2dbea;background:#fff;color:#7138cf;border-radius:9px;padding:7px 11px;font-size:11.5px;box-shadow:0 3px 12px rgba(56,38,79,.035)}
.add-card:hover{border-color:#c4b5fd;background:#fbfaff}
.resource-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:13px 15px}
.resource-card{height:88px;border-radius:11px;border:1px solid rgba(231,226,237,.9);box-shadow:0 5px 17px rgba(35,24,48,.035);overflow:visible}
.resource-card:before{content:"";position:absolute;left:-1px;top:17px;bottom:17px;width:2px;border-radius:2px;background:linear-gradient(var(--tech2),var(--tech3));opacity:0;transition:.18s}
.resource-card:hover{transform:translateY(-2px);border-color:#ddd3e8;box-shadow:0 12px 30px rgba(45,28,65,.085)}
.resource-card:hover:before{opacity:1}
.resource-card>a{padding:13px 12px}
.site-logo{width:44px;height:44px;flex-basis:44px;border-radius:11px;background:linear-gradient(145deg,#f8f5ff,#f2fbfc);border:1px solid #eee9f4;margin-right:11px}
.site-logo span{color:#7c3aed}.site-copy b{font-size:13px;font-weight:700;color:#24202b}.site-copy p{font-size:10.5px;color:#8f8998;line-height:1.45;margin-top:5px}
.open-mark{font-size:18px;color:#d0cbd6}.card-pencil{right:5px;top:5px;background:#f4efff;color:#7c3aed;border:1px solid #e9ddff}.card-pencil:hover{background:#7c3aed;color:#fff}
.empty-add{height:88px;border-radius:11px;border-color:#dcd5e4;color:#aaa4b1;background:rgba(255,255,255,.42);font-size:11.5px}
.empty-add:hover{border-color:#c4b5fd;color:#7c3aed;background:#fff}
.modal-mask{background:rgba(15,11,22,.58);backdrop-filter:blur(4px)}.edit-modal{border:1px solid rgba(226,216,237,.9);box-shadow:0 28px 80px rgba(24,13,36,.25)}
.edit-modal input:focus,.edit-modal textarea:focus,.edit-modal select:focus{border-color:#a78bfa;box-shadow:0 0 0 3px rgba(124,58,237,.07)}
.primary{background:linear-gradient(135deg,#7c3aed,#9333ea)!important}.danger{background:#fff1f2!important;color:#e11d48!important}
@media(min-width:1600px){.resource-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:1380px){.resource-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:1000px){.resource-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.tree-side{width:66px}.tree-main{margin-left:66px}.resource-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.resource-grid{grid-template-columns:1fr}}

/* ===== v4.2 Carbon Aurora Tech ===== */
:root{--aurora:#00d4ff;--violet:#8b5cf6;--magenta:#c026d3;--carbon:#0b0e14;--carbon2:#111620;--surface:#f5f7fa;--text:#161b25}
.tree-body{background:radial-gradient(circle at 60% -8%,rgba(0,212,255,.075),transparent 30rem),radial-gradient(circle at 92% 14%,rgba(139,92,246,.06),transparent 25rem),#f5f7fa}
.tree-side{background:radial-gradient(circle at 0 0,rgba(0,212,255,.12),transparent 15rem),linear-gradient(180deg,#090c12 0%,#101520 52%,#151020 100%);border-right:1px solid rgba(0,212,255,.13)}
.tree-brand{background:linear-gradient(90deg,rgba(0,212,255,.035),rgba(139,92,246,.035))}
.brand-shield{border-color:rgba(0,212,255,.65);color:#67e8f9;box-shadow:0 0 18px rgba(0,212,255,.12)}
.tree-ico{color:#67e8f9}.tree-root:hover{background:linear-gradient(90deg,rgba(0,212,255,.07),rgba(139,92,246,.06))}
.tree-children{border-left-color:rgba(0,212,255,.14)}.tree-child:hover{background:linear-gradient(90deg,rgba(0,212,255,.09),rgba(139,92,246,.09));color:#fff}
.tree-add,.root-add{border-color:rgba(0,212,255,.22)}.tree-add:hover,.root-add:hover{border-color:rgba(0,212,255,.48);background:rgba(0,212,255,.055)}
.pencil{background:rgba(0,212,255,.09);color:#67e8f9}.pencil:hover{background:rgba(0,212,255,.18)}
.tree-top{background:rgba(250,252,254,.9);border-bottom-color:#e5e9ef}.tree-search:focus-within{border-color:#67e8f9;box-shadow:0 0 0 3px rgba(0,212,255,.07),0 8px 25px rgba(28,55,75,.05)}
.admin-badge{background:linear-gradient(135deg,#ecfeff,#f3e8ff)!important;color:#6d28d9!important;border-color:#cffafe!important}
.tree-content{padding:20px 24px 60px}
.portal-group{margin-bottom:34px;scroll-margin-top:86px}
.group-head{min-height:48px;display:flex;align-items:center;gap:18px;border-bottom:1px solid #e5e9ef;margin-bottom:15px}
.group-title{display:flex;align-items:center;gap:9px;white-space:nowrap}.group-title b{font-size:15px;letter-spacing:-.2px}
.tech-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--aurora),var(--violet));box-shadow:0 0 0 4px rgba(0,212,255,.07),0 0 15px rgba(0,212,255,.18)}
.sub-tabs{display:flex;align-items:center;gap:5px;overflow:auto;padding:5px 0}
.sub-tab{border:0;background:transparent;color:#7b8492;padding:7px 12px;border-radius:8px;font-size:12px;cursor:pointer;white-space:nowrap;transition:.16s}
.sub-tab:hover{background:#eef3f7;color:#26313e}.sub-tab.active{color:#07141a;background:linear-gradient(135deg,rgba(103,232,249,.28),rgba(196,181,253,.30));box-shadow:inset 0 0 0 1px rgba(34,211,238,.22);font-weight:700}
.sub-panel{display:none}.sub-panel.active{display:block}.panel-admin{height:34px;display:flex;align-items:center;justify-content:space-between;margin:-5px 0 8px;color:#929aa7;font-size:11px}
.resource-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:14px 16px}
.resource-card{height:90px;border:1px solid #e6eaf0;border-radius:12px;background:rgba(255,255,255,.94);box-shadow:0 5px 18px rgba(20,29,40,.035)}
.resource-card:before{background:linear-gradient(var(--aurora),var(--violet))}
.resource-card:hover{border-color:#d8e2e9;box-shadow:0 13px 30px rgba(18,34,49,.09)}
.site-logo{background:linear-gradient(145deg,#f1fbfd,#f7f3ff);border-color:#e5edf1}.site-logo span{color:#6d5ce7}
.card-pencil{background:#ecfeff;color:#0891b2;border-color:#cffafe}.card-pencil:hover{background:#0e7490;color:#fff}
.add-card{color:#087f9b;border-color:#d9e8ec}.add-card:hover{border-color:#67e8f9;background:#f0fdff}
.empty-add{height:90px;border-color:#d8e2e8}.empty-add:hover{border-color:#67e8f9;color:#0787a3}
.primary{background:linear-gradient(135deg,#0891b2,#7c3aed)!important}
@media(min-width:1600px){.resource-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:1380px){.resource-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:1000px){.group-head{align-items:flex-start;flex-direction:column;gap:4px;padding:8px 0}.resource-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.resource-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.resource-grid{grid-template-columns:1fr}}

/* ===== v4.3 Blog workspace ===== */
.blog-nav-main,.blog-nav-item{display:flex;align-items:center;gap:9px;color:#b9b5c3;margin:2px 7px;border-radius:8px;min-height:40px;padding:0 11px;font-size:12.5px}.blog-nav-main b{flex:1;font-size:13px}.blog-nav-main.active,.blog-nav-main:hover,.blog-nav-item:hover{background:linear-gradient(90deg,rgba(0,212,255,.09),rgba(139,92,246,.10));color:#fff}.blog-nav-item{padding-left:22px}.blog-nav-item em,.blog-nav-main em{margin-left:auto;font-style:normal;font-size:10px;color:#777182}.blog-side-line{height:1px;background:rgba(255,255,255,.07);margin:10px 14px}.blog-new{width:calc(100% - 28px);margin:10px 14px;border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.055);color:#8be9f6;border-radius:9px;padding:9px;cursor:pointer}.blog-new:hover{background:rgba(34,211,238,.1);color:#fff}.top-new{border:0;background:linear-gradient(135deg,#0891b2,#7c3aed);color:#fff;border-radius:8px;padding:8px 11px;cursor:pointer}.blog-content{padding:22px 25px 60px}.blog-hero{height:155px;border-radius:16px;padding:26px 30px;margin-bottom:26px;color:#fff;position:relative;overflow:hidden;background:radial-gradient(circle at 80% 20%,rgba(34,211,238,.22),transparent 15rem),linear-gradient(125deg,#0b0e14,#171325 62%,#201338);box-shadow:0 14px 40px rgba(23,15,35,.10)}.blog-hero small{font-size:10px;letter-spacing:1.6px;color:#67e8f9}.blog-hero h1{font-size:25px;margin:10px 0 7px}.blog-hero p{font-size:12px;color:#aaa8b7}.hero-orbit{position:absolute;width:170px;height:170px;border:1px solid rgba(103,232,249,.17);border-radius:50%;right:80px;top:-58px}.hero-orbit:after{content:"";position:absolute;width:8px;height:8px;background:#67e8f9;border-radius:50%;right:14px;bottom:30px;box-shadow:0 0 18px #22d3ee}.blog-category{margin-bottom:30px;scroll-margin-top:90px}.blog-cat-head{height:42px;border-bottom:1px solid #e5e9ef;display:flex;align-items:center;margin-bottom:5px}.blog-cat-head>div{display:flex;align-items:center;gap:9px}.blog-cat-head b{font-size:14px}.blog-cat-head small{font-size:10px;color:#a0a6b0}.article-list{background:#fff;border:1px solid #e7eaf0;border-radius:12px;overflow:hidden}.article-row{min-height:112px;display:grid;grid-template-columns:128px minmax(0,1fr) auto;gap:17px;padding:15px;border-bottom:1px solid #eef0f3;position:relative}.article-row:last-child{border-bottom:0}.article-row:hover{background:#fbfcfd}.article-cover{height:82px;border-radius:9px;overflow:hidden;background:linear-gradient(145deg,#ecfeff,#f3e8ff);display:grid;place-items:center}.article-cover img{width:100%;height:100%;object-fit:contain;object-position:center}.article-cover span{font-size:23px;color:#7c3aed}.article-info{min-width:0}.article-meta{font-size:10px;color:#9aa1ad;margin-bottom:5px}.article-meta i{color:#d97706}.article-title{font-size:15px;font-weight:700;color:#222733;display:block;margin-bottom:6px}.article-title:hover{color:#7c3aed}.article-info p{font-size:11.5px;color:#7e8693;line-height:1.55;margin:0;max-width:850px}.article-info small{display:block;margin-top:6px;color:#a1a7b1}.article-admin{display:flex;align-items:flex-start;gap:8px}.article-admin button,.article-admin a{border:1px solid #e1e5eb;background:#fff;border-radius:7px;padding:6px 8px;font-size:11px;color:#687184;cursor:pointer}.article-admin a{color:#e05260}.blog-empty{background:#fff;border:1px dashed #dce1e7;border-radius:12px;padding:50px;text-align:center;color:#9299a5}.post-modal-mask{align-items:flex-start;overflow:auto;padding:35px 20px}.post-modal{width:min(1050px,100%);background:#fff;border-radius:15px;padding:20px 22px;box-shadow:0 28px 90px rgba(10,8,16,.3)}.modal-title>div small{display:block;color:#9aa1ad;font-size:10.5px;margin-top:4px}.post-form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 12px}.post-form-grid label{font-size:11px;color:#737b89;margin:7px 0}.post-form-grid label.wide{grid-column:span 2}.post-form-grid input,.post-form-grid select{width:100%;box-sizing:border-box;margin-top:5px;border:1px solid #dfe4ea;border-radius:8px;padding:9px;outline:0}.paste-tip{font-size:11px;line-height:1.55;color:#67717f;background:linear-gradient(90deg,#ecfeff,#faf5ff);border:1px solid #dff4f6;border-radius:9px;padding:10px 12px;margin:12px 0}.richbar{display:flex;gap:5px;padding:7px;border:1px solid #e0e4ea;border-bottom:0;border-radius:9px 9px 0 0;background:#f8fafb}.richbar button{border:1px solid #e1e5eb;background:#fff;border-radius:6px;padding:6px 9px;cursor:pointer}.post-editor{min-height:420px;max-height:58vh;overflow:auto;border:1px solid #e0e4ea;border-radius:0 0 9px 9px;padding:24px;outline:0;line-height:1.75;color:#252a34}.post-editor:focus{border-color:#67e8f9;box-shadow:inset 0 0 0 1px #67e8f9}.post-editor img{max-width:100%;height:auto}.post-editor h1,.post-editor h2,.post-editor h3{line-height:1.35}.post-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:14px}.post-actions button{border:0;border-radius:8px;padding:9px 18px;cursor:pointer}.article-page{padding:28px 25px 70px}.article-paper{max-width:980px;margin:auto;background:#fff;border:1px solid #e7eaf0;border-radius:16px;padding:42px 58px;box-shadow:0 10px 35px rgba(25,31,42,.04)}.article-kicker{font-size:11px;color:#8e96a2;margin-bottom:12px}.article-paper>h1{font-size:30px;line-height:1.35;margin:0 0 25px}.article-hero-img{width:100%;max-height:460px;object-fit:cover;border-radius:12px;margin-bottom:25px}.article-content{font-size:15px;line-height:1.9;color:#303641}.article-content img{max-width:100%;height:auto;border-radius:8px}.article-content p{margin:1em 0}.article-content h2{font-size:22px;margin-top:1.8em}.article-content h3{font-size:18px;margin-top:1.6em}.article-content blockquote{margin:1.4em 0;padding:10px 18px;border-left:3px solid #22d3ee;background:#f7fbfc;color:#606875}.article-content table{max-width:100%;border-collapse:collapse}.article-content td,.article-content th{border:1px solid #e1e5ea;padding:8px}.article-source{margin-top:35px;padding-top:18px;border-top:1px solid #e8ebef;font-size:11px;color:#8d95a1}.article-source a{color:#0891b2}
@media(max-width:850px){.post-form-grid{grid-template-columns:1fr 1fr}.article-paper{padding:30px}.article-row{grid-template-columns:105px 1fr}.article-admin{grid-column:2}.blog-hero{height:auto}.hero-orbit{display:none}}@media(max-width:560px){.post-form-grid{grid-template-columns:1fr}.post-form-grid label.wide{grid-column:auto}.article-row{grid-template-columns:1fr}.article-cover{height:150px}.article-admin{grid-column:auto}.article-paper{padding:22px}.article-paper>h1{font-size:24px}}

/* ===== v4.4 Smart Paste ===== */
.paste-mode{display:flex;align-items:center;gap:7px;margin:10px 0 7px;font-size:11px;color:#7b8491}.paste-mode>span{font-weight:700;margin-right:3px}.mode-pill{display:flex!important;align-items:center;gap:5px!important;margin:0!important;padding:6px 10px;border:1px solid #e1e6eb;border-radius:20px;background:#fff;cursor:pointer;color:#737b88!important}.mode-pill input{display:none}.mode-pill.active{border-color:#67e8f9;background:linear-gradient(135deg,#ecfeff,#f5f3ff);color:#087f9b!important;box-shadow:0 0 0 2px rgba(34,211,238,.06)}.clean-now{margin-left:auto;border:1px solid #e2e6eb;background:#fff;color:#687281;border-radius:7px;padding:6px 9px;cursor:pointer}.clean-now:hover{border-color:#c4b5fd;color:#6d28d9}
.post-editor{background:#fff!important;color:#2b313b!important;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif!important;font-size:15px!important}
.post-editor p,.post-editor div{background:transparent!important;color:inherit!important}.post-editor img{display:block;max-width:100%!important;height:auto!important;margin:16px auto}.post-editor table{width:100%;max-width:100%;border-collapse:collapse}.post-editor td,.post-editor th{border:1px solid #e1e5ea;padding:8px}.post-editor blockquote{border-left:3px solid #22d3ee;background:#f7fbfc!important;padding:10px 16px;margin:16px 0;color:#5f6875!important}
.article-content{background:#fff;color:#303641}.article-content *{max-width:100%}.article-content img{display:block;max-width:100%!important;height:auto!important;margin:18px auto}

/* ===== v4.5 Blog collapsible article tree ===== */
.blog-tree{padding-top:9px}.blog-tree-group{margin:2px 7px}.blog-tree-root{width:100%;min-height:43px;border:0;border-radius:9px;background:transparent;color:#d7d4de;display:flex;align-items:center;gap:9px;padding:0 10px;cursor:pointer;text-align:left}.blog-tree-root:hover{background:linear-gradient(90deg,rgba(0,212,255,.08),rgba(139,92,246,.10));color:#fff}.blog-tree-icon{color:#67e8f9;font-size:12px}.blog-tree-root b{font-size:13px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.blog-tree-root em{font-style:normal;color:#777181;font-size:10px}.blog-tree-arrow{font-size:11px;color:#817b8d;transition:transform .18s}.blog-tree-group.collapsed .blog-tree-arrow{transform:rotate(-90deg)}.blog-tree-children{margin:0 0 5px 20px;padding:2px 0 4px 10px;border-left:1px solid rgba(34,211,238,.14)}.blog-tree-group.collapsed .blog-tree-children{display:none}.blog-tree-article{position:relative;display:flex;align-items:center;min-height:35px;padding:5px 8px 5px 11px;border-radius:7px;color:#9d99a7;font-size:11.5px;line-height:1.35}.blog-tree-article:hover{background:linear-gradient(90deg,rgba(34,211,238,.075),rgba(139,92,246,.07));color:#fff}.tree-article-line{width:5px;height:5px;border-radius:50%;background:#52505c;margin-right:8px;flex:0 0 5px}.blog-tree-article:hover .tree-article-line{background:#67e8f9;box-shadow:0 0 8px rgba(34,211,238,.45)}.tree-article-title{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.blog-tree-article i{margin-left:auto;font-size:9px;color:#f59e0b;font-style:normal}.blog-tree-add{width:calc(100% - 8px);margin:4px;border:1px dashed rgba(34,211,238,.18);background:transparent;color:#777f8d;border-radius:7px;padding:6px;font-size:10.5px;cursor:pointer}.blog-tree-add:hover{border-color:rgba(34,211,238,.42);color:#8be9f6;background:rgba(34,211,238,.04)}.tree-no-post{padding:25px 15px;color:#777181;text-align:center;font-size:11px}

/* v4.6 Professional article editor */
.editor-mode-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:14px 0 8px;font-size:12px;color:#687384}.editor-mode-btn{border:1px solid #dce4ec;background:#fff;color:#586476;padding:8px 12px;border-radius:8px;cursor:pointer}.editor-mode-btn.active{color:#036b82;border-color:#67e8f9;background:linear-gradient(110deg,#ecfeff,#f5f3ff);font-weight:700}.editor-hint{margin-left:auto;color:#929baa;font-size:11px}.editor-toolbar{flex-wrap:wrap;gap:5px;padding:10px;background:#f7fafc}.editor-toolbar button{min-height:33px;padding:6px 10px;font-size:12px;white-space:nowrap}.editor-toolbar button:hover{border-color:#67e8f9;color:#087f9b;background:#ecfeff}.tool-sep{width:1px;background:#dce3ea;margin:4px 3px}.markdown-editor{display:block;width:100%;min-height:440px;max-height:62vh;overflow:auto;resize:vertical;border:1px solid #dce4ea;border-radius:10px;padding:22px;background:#0d1420;color:#e4f3f6;font:14px/1.85 Consolas,Monaco,monospace;tab-size:2;outline:none}.markdown-editor:focus{border-color:#22d3ee}.editor-preview{background:#fff;cursor:default}.editor-preview pre,.post-editor pre,.article-content pre{padding:16px;border-radius:9px;background:#111827!important;color:#e5e7eb!important;overflow:auto;white-space:pre-wrap}.editor-preview code,.post-editor code,.article-content code{font-family:Consolas,Monaco,monospace}.editor-preview table,.post-editor table{width:100%;border-collapse:collapse}.editor-preview th,.editor-preview td{border:1px solid #dce4ea;padding:8px}.post-editor[hidden],.markdown-editor[hidden],.editor-preview[hidden],.editor-toolbar[hidden]{display:none!important}@media(max-width:640px){.editor-hint{display:none}.editor-toolbar{max-height:180px;overflow:auto}}

/* v4.7 */.delete-modal[hidden]{display:none!important}.delete-modal{position:fixed;inset:0;z-index:99999;background:rgba(10,14,25,.58);display:grid;place-items:center;padding:20px}.delete-panel{width:min(420px,100%);background:#fff;color:#17202e;border-radius:16px;padding:25px;box-shadow:0 30px 100px #0004}.delete-panel h3{margin:0 0 10px}.delete-panel p{font-size:13px;color:#667085;overflow-wrap:anywhere}.delete-buttons{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.delete-buttons button{padding:9px 18px;border-radius:8px;border:1px solid #e4e7ec;background:#fff;cursor:pointer}.delete-buttons .danger{background:#dc2626;color:#fff;border-color:#dc2626}.delete-action{color:#dc2626;background:transparent;border:0;cursor:pointer}.post-form-grid textarea{width:100%;margin-top:5px;padding:9px;border:1px solid #dfe4ea;border-radius:8px;box-sizing:border-box}

/* v4.7.1: blog list covers keep their complete aspect ratio */
.article-list .article-cover img { width:100%; height:100%; object-fit:contain; object-position:center; display:block; }
.article-list .article-cover { background:#f4f6fa; }

/* Complete list covers and temporary rich-editor image selection. */
.blog-shell .article-list .article-cover{min-width:0; padding:0; background:#f4f6fa;}
.blog-shell .article-list .article-cover img{display:block;width:100%!important;height:100%!important;max-width:100%!important;max-height:100%!important;object-fit:contain!important;object-position:center!important; margin:0!important; border-radius:0;}
#post_editor img{cursor:pointer;}
#post_editor img[data-editor-selected="true"]{outline:3px solid #0891b2;outline-offset:3px;}
#deleteEditorImage:disabled{opacity:.45;cursor:default;}

/* v4.7.3: remove intrinsic grid sizing from list thumbnails. */
.blog-shell .article-list .article-cover{position:relative;display:block;overflow:hidden;}
.blog-shell .article-list .article-cover img{position:absolute!important;inset:0!important;display:block!important;width:100%!important;height:100%!important;min-width:0!important;min-height:0!important;max-width:100%!important;max-height:100%!important;object-fit:contain!important;object-position:center!important;margin:0!important;padding:0!important;transform:none!important;}

/* v4.7.4: compact article layout and complete, proportional images. */
.article-page{padding:28px 24px 64px;}
.article-paper{max-width:900px;padding:36px 44px;}
.article-paper>h1{font-size:28px;line-height:1.45;margin:0 0 22px;overflow-wrap:anywhere;}
.article-kicker{margin-bottom:12px;}
.article-paper .article-hero-img{display:block!important;position:static!important;width:auto!important;height:auto!important;max-width:min(100%,420px)!important;max-height:280px!important;object-fit:contain!important;object-position:center!important;margin:0 auto 28px!important;border-radius:10px;transform:none!important;}
.article-content{font-size:15px;line-height:1.85;overflow-wrap:anywhere;}
.article-content p{margin:0 0 1.15em;}
.article-content h2{font-size:22px;line-height:1.45;margin:1.6em 0 .65em;}
.article-content h3{font-size:18px;line-height:1.5;margin:1.4em 0 .6em;}
.article-content img{display:block!important;position:static!important;width:auto!important;height:auto!important;max-width:min(100%,640px)!important;max-height:480px!important;object-fit:contain!important;object-position:center!important;margin:22px auto!important;transform:none!important;}
.article-content figure{max-width:100%;height:auto!important;max-height:none!important;margin:24px 0;overflow:visible!important;}
.article-content figcaption{text-align:center;color:#8d95a1;font-size:12px;line-height:1.6;margin-top:8px;}
@media(max-width:640px){.article-page{padding:18px 12px 40px;}.article-paper{padding:24px 20px;}.article-paper>h1{font-size:23px;}.article-paper .article-hero-img{max-width:min(100%,320px)!important;max-height:220px!important;margin-bottom:24px!important;}.article-content img{max-height:360px!important;}}

/* v4.7.5: automatic article category tabs. */
.blog-category-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:0 0 14px;margin-bottom:14px;border-bottom:1px solid #e5e9ef;}
.blog-category-tab{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;border:1px solid #e1e6ed;border-radius:9px;background:#fff;color:#687384;padding:10px 16px;font:inherit;font-size:13px;cursor:pointer;}
.blog-category-tab span{font-size:11px;opacity:.7;}
.blog-category-tab:hover{border-color:#67e8f9;color:#087f9b;}
.blog-category-tab.active{border-color:#67e8f9;background:linear-gradient(110deg,#ecfeff,#f5f3ff);color:#036b82;font-weight:700;}
.blog-category-tab:focus-visible{outline:2px solid #0891b2;outline-offset:2px;}
.blog-category[hidden],.blog-filter-empty[hidden]{display:none!important;}
.blog-filter-empty{padding:36px 20px;text-align:center;background:#fff;border:1px dashed #dce1e7;border-radius:12px;color:#7e8693;font-size:13px;}
@media(max-width:560px){.blog-category-tab{padding:9px 12px;}.blog-category-tabs{gap:6px;}}

/* v4.7.6: consistent, always-visible primary page navigation. */
.tree-side{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden;}
.tree-side .tree-brand{flex:0 0 72px;}
.site-page-switch{flex:0 0 auto;display:flex;flex-direction:column;gap:5px;padding:12px 12px 14px;border-bottom:1px solid rgba(255,255,255,.08);}
.site-page-link{display:flex;align-items:center;gap:10px;min-height:40px;padding:9px 12px;border:1px solid transparent;border-radius:9px;color:#abb5c7;font-size:13px;font-weight:600;}
.site-page-icon{display:grid;place-items:center;width:20px;flex:0 0 20px;font-size:18px;line-height:1;}
.site-page-link:hover{background:rgba(103,232,249,.07);color:#fff;}
.site-page-link.active{border-color:rgba(103,232,249,.26);background:linear-gradient(105deg,rgba(34,211,238,.16),rgba(139,92,246,.14));color:#9cecf7;}
.site-page-link:focus-visible{outline:2px solid #67e8f9;outline-offset:2px;}
.tree-side .tree-scroll{flex:1 1 auto;min-height:0;height:auto;overflow-y:auto;overscroll-behavior:contain;}
@media(max-width:720px){.site-page-switch{padding:10px 7px;gap:6px;}.site-page-link{justify-content:center;padding:9px 0;}.site-page-label{display:none;}.site-page-icon{font-size:21px;}}

/* v5.1.1: semantic link styling survives HTML cleanup and Markdown saves. */
.article-content a[href],.article-content a[href] *,
.post-editor a[href],.post-editor a[href] *{
 color:#2563eb!important;
}
.article-content a[href],.post-editor a[href]{
 text-decoration-line:underline!important;
 text-decoration-color:currentColor!important;
 text-underline-offset:3px;
 text-decoration-thickness:1px;
 overflow-wrap:anywhere;
}
.article-content a[href]:hover,.article-content a[href]:hover *,
.post-editor a[href]:hover,.post-editor a[href]:hover *{color:#1d4ed8!important;}
.article-content a[href]:focus-visible,.post-editor a[href]:focus-visible{
 outline:2px solid #93c5fd;outline-offset:3px;border-radius:2px;
}