/* ===== محتوای مقاله (هم داخل ویرایشگر ادمین، هم صفحه‌ی عمومی) ===== */
.art-content{font-size:16px;line-height:2.15;color:var(--text-main,#1a1f2e);word-wrap:break-word;overflow-wrap:anywhere}
.art-content > *:first-child{margin-top:0}
.art-content p{margin:0 0 16px}
.art-content h2{font-size:24px;line-height:1.7;margin:34px 0 14px;font-weight:800;scroll-margin-top:90px}
.art-content h3{font-size:20px;line-height:1.7;margin:28px 0 12px;font-weight:700;scroll-margin-top:90px}
.art-content h4{font-size:17px;line-height:1.7;margin:22px 0 10px;font-weight:700}
.art-content a{color:var(--accent,#2563eb);text-decoration:underline;text-underline-offset:3px}
.art-content ul,.art-content ol{margin:0 0 18px;padding-inline-start:26px}
.art-content li{margin-bottom:6px}
.art-content blockquote{margin:22px 0;padding:14px 20px;border-inline-start:4px solid var(--accent,#2563eb);background:rgba(127,127,127,.09);border-radius:12px;color:var(--text-muted,#555)}
.art-content hr{border:0;border-top:1px dashed rgba(127,127,127,.5);margin:28px 0}
.art-content img{max-width:100%;height:auto;border-radius:14px;display:block;margin:18px auto}
.art-content img.art-img-right{float:right;margin:6px 0 12px 18px;max-width:50%}
.art-content img.art-img-left{float:left;margin:6px 18px 12px 0;max-width:50%}
.art-content img.art-img-center{margin:18px auto;float:none}
.art-content pre,.art-content code{direction:ltr;text-align:left;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px}
.art-content pre{background:rgba(127,127,127,.12);padding:14px 16px;border-radius:12px;overflow-x:auto;margin:0 0 18px;white-space:pre-wrap}
.art-content code{background:rgba(127,127,127,.14);padding:2px 6px;border-radius:6px}
.art-content pre code{background:none;padding:0}
.art-content table{width:100%;border-collapse:collapse;margin:0 0 20px;max-width:100%}
.art-content .art-tbl-wrap{overflow-x:auto;margin:0 0 20px;max-width:100%}
.art-content .art-tbl-wrap table{margin:0}
.art-content table.art-tbl-center{margin-left:auto;margin-right:auto}
.art-content table.art-tbl-right{margin-left:auto;margin-right:0}
.art-content table.art-tbl-left{margin-left:0;margin-right:auto}
.art-content th,.art-content td{border:1px solid rgba(127,127,127,.35);padding:8px 12px;text-align:start}
.art-content th{background:rgba(127,127,127,.12)}
.art-content .art-btn-wrap{margin:22px 0;text-align:center}
.art-content a.art-btn{display:inline-block;padding:12px 28px;border-radius:12px;font-weight:700;font-size:15px;text-decoration:none;color:#fff;background:var(--accent,#2563eb);box-shadow:0 8px 20px rgba(0,0,0,.18);transition:transform .15s}
.art-content a.art-btn:hover{transform:translateY(-2px)}
.art-content .art-video{position:relative;width:100%;aspect-ratio:16/9;margin:22px 0;border-radius:14px;overflow:hidden;background:#000}
.art-content .art-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.art-content::after{content:"";display:block;clear:both}

/* ===== صفحه‌ی مقاله ===== */
.art-page{max-width:860px;margin:26px auto 40px;padding:0 4px}
.art-crumbs{font-size:12.5px;color:var(--text-muted,#666);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:6px}
.art-crumbs a{color:inherit;text-decoration:none}
.art-crumbs a:hover{color:var(--accent,#2563eb)}
.art-title{font-size:30px;line-height:1.7;font-weight:800;margin:0 0 12px}
.art-meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px;color:var(--text-muted,#666);margin-bottom:18px}
.art-meta i{margin-inline-end:5px;color:var(--accent,#2563eb)}
.art-cover{width:100%;max-height:440px;object-fit:cover;border-radius:20px;margin:0 0 22px;display:block;box-shadow:0 12px 30px rgba(0,0,0,.18)}
.art-box{background:var(--surface,#fff);border:1px solid var(--border-soft,rgba(127,127,127,.25));border-radius:18px;padding:22px 24px;box-shadow:var(--shadow-raised-sm,0 4px 14px rgba(0,0,0,.08))}
.art-toc{margin:0 0 22px;padding:16px 20px;border-radius:16px;background:rgba(127,127,127,.09)}
.art-toc b{display:block;margin-bottom:8px;font-size:14px}
.art-toc ol{margin:0;padding-inline-start:20px;font-size:14px;line-height:2.1}
.art-toc li.l3{margin-inline-start:18px;list-style:circle}
.art-toc a{color:inherit;text-decoration:none}
.art-toc a:hover{color:var(--accent,#2563eb)}
.art-actions{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding-top:16px;border-top:1px dashed rgba(127,127,127,.4);align-items:center}
.art-actions small{color:var(--text-muted,#666);font-size:12px}
.art-actions button,.art-actions a.b{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border-radius:10px;border:1px solid var(--border-soft,rgba(127,127,127,.35));background:var(--surface,#fff);color:var(--text-main,#222);font-size:12.5px;font-family:inherit;cursor:pointer;text-decoration:none}
.art-actions button:hover,.art-actions a.b:hover{border-color:var(--accent,#2563eb);color:var(--accent,#2563eb)}
.art-cta{margin:26px 0 0;padding:22px;border-radius:18px;text-align:center;color:#fff;background:var(--accent-gradient,var(--accent,#2563eb))}
.art-cta a{display:inline-block;margin-top:10px;padding:10px 24px;border-radius:12px;background:#fff;color:#111;font-weight:700;text-decoration:none}

/* ===== لیست مقاله‌ها ===== */
.art-hero{text-align:center;margin:26px 0 22px}
.art-hero h1{font-size:28px;margin:0 0 6px}
.art-hero p{color:var(--text-muted,#666);font-size:14px;margin:0}
.art-search{display:flex;gap:8px;max-width:460px;margin:16px auto 0}
.art-search input{flex:1;padding:11px 14px;border-radius:12px;border:1px solid var(--border-soft,rgba(127,127,127,.35));background:var(--surface,#fff);color:inherit;font-family:inherit}
.art-search button{padding:0 18px;border:0;border-radius:12px;background:var(--accent-gradient,var(--accent,#2563eb));color:#fff;font-family:inherit;cursor:pointer}
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-bottom:24px}
.art-card{display:flex;flex-direction:column;background:var(--surface,#fff);border:1px solid var(--border-soft,rgba(127,127,127,.25));border-radius:18px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:var(--shadow-raised-sm,0 4px 14px rgba(0,0,0,.08));transition:transform .18s,box-shadow .18s}
.art-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,0,0,.18)}
.art-card .im{aspect-ratio:16/9;background:linear-gradient(135deg,rgba(127,127,127,.25),rgba(127,127,127,.1));display:flex;align-items:center;justify-content:center;font-size:34px;color:rgba(127,127,127,.7)}
.art-card .im img{width:100%;height:100%;object-fit:cover;display:block}
.art-card .bd{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.art-card h2,.art-card h3{margin:0;font-size:16px;line-height:1.8}
.art-card p{margin:0;font-size:13px;line-height:1.9;color:var(--text-muted,#666);flex:1}
.art-card .mt{display:flex;gap:12px;font-size:11.5px;color:var(--text-muted,#666)}
.art-pager{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:10px 0 30px}
.art-pager a,.art-pager span{min-width:38px;height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--border-soft,rgba(127,127,127,.35));background:var(--surface,#fff);color:inherit;text-decoration:none;font-size:13px}
.art-pager span.on{background:var(--accent-gradient,var(--accent,#2563eb));color:#fff;border-color:transparent}
@media(max-width:560px){.art-title{font-size:23px}.art-box{padding:16px}.art-content{font-size:15px}.art-content h2{font-size:20px}.art-content img.art-img-right,.art-content img.art-img-left{float:none;max-width:100%;margin:16px auto}}

/* ===== نمایش بزرگ‌تر روی کامپیوتر (موبایل بدون تغییر) ===== */
@media(min-width:1024px){
  .art-page{max-width:1040px;margin-top:34px}
  .art-title{font-size:38px;margin-bottom:16px}
  .art-meta{font-size:14px;gap:8px 22px;margin-bottom:22px}
  .art-crumbs{font-size:14px}
  .art-cover{max-height:540px;border-radius:24px}
  .art-box{padding:36px 46px;border-radius:22px}
  .art-content{font-size:19px;line-height:2.25}
  .art-content h2{font-size:30px;margin:44px 0 18px}
  .art-content h3{font-size:24px;margin:34px 0 14px}
  .art-content h4{font-size:20px}
  .art-content blockquote{padding:18px 26px;font-size:18px}
  .art-content th,.art-content td{padding:11px 16px;font-size:17px}
  .art-content a.art-btn{padding:15px 38px;font-size:17px}
  .art-toc{padding:20px 26px}.art-toc b{font-size:16px}.art-toc ol{font-size:16px}
  .art-actions button,.art-actions a.b{height:42px;font-size:14px;padding:0 18px}
  .art-cta{padding:30px}.art-cta a{padding:13px 32px;font-size:16px}
  .art-hero{margin:38px 0 30px}.art-hero h1{font-size:38px}.art-hero p{font-size:16.5px}
  .art-search{max-width:560px}.art-search input{padding:14px 18px;font-size:15px}.art-search button{padding:0 24px}
  .art-grid{grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:26px}
  .art-card .bd{padding:18px 20px 20px;gap:10px}
  .art-card h2,.art-card h3{font-size:19px}
  .art-card p{font-size:15px}
  .art-card .mt{font-size:12.5px}
}
@media(min-width:1500px){
  .art-page{max-width:1120px}
  .art-content{font-size:20px}
}

/* ===== نمایش بزرگ عکس‌ها (lightbox) ===== */
img.lb-able{cursor:zoom-in}
img.lb-able:focus-visible{outline:3px solid var(--accent,#2563eb);outline-offset:3px}
html.lb-lock{overflow:hidden}
.lb{position:fixed;inset:0;z-index:100000;display:none;background:rgba(6,8,16,.94);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;direction:rtl;-webkit-user-select:none;user-select:none}
.lb.on{display:block;animation:lbIn .2s ease}
@keyframes lbIn{from{opacity:0}to{opacity:1}}
.lb-stage{position:absolute;inset:0;overflow:hidden;touch-action:none;cursor:default}
.lb-img{position:absolute;left:50%;top:50%;max-width:none;max-height:none;transform:translate(-50%,-50%);transform-origin:center center;border-radius:10px;box-shadow:0 24px 70px rgba(0,0,0,.65);background:#111;cursor:zoom-in;will-change:transform;-webkit-user-drag:none;transition:opacity .2s}
.lb.zoomed .lb-img{cursor:grab;border-radius:0}
.lb.drag .lb-img{cursor:grabbing}
.lb.anim .lb-img{transition:transform .22s cubic-bezier(.2,.8,.2,1),opacity .2s}
.lb.loading .lb-img,.lb.err .lb-img{opacity:0}
.lb.loading .lb-stage::after{content:"";position:absolute;left:50%;top:50%;width:42px;height:42px;margin:-21px;border-radius:50%;border:3px solid rgba(255,255,255,.25);border-top-color:#fff;animation:lbSpin .8s linear infinite}
@keyframes lbSpin{to{transform:rotate(360deg)}}
.lb-err{display:none;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:15px;color:rgba(255,255,255,.8)}
.lb.err .lb-err{display:block}
.lb-top{position:absolute;top:0;left:0;right:0;z-index:3;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 16px;pointer-events:none}
.lb-top>*{pointer-events:auto}
.lb-tools{display:flex;align-items:center;gap:2px;padding:4px;border-radius:999px;background:rgba(255,255,255,.12);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.lb-tools button,.lb-tools a{width:38px;height:38px;border:0;border-radius:50%;background:transparent;color:#fff;font-size:20px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;text-decoration:none;font-family:inherit}
.lb-tools button:hover,.lb-tools a:hover{background:rgba(255,255,255,.22)}
.lb-zoom{min-width:50px;text-align:center;font-size:12.5px;font-weight:700;direction:ltr}
.lb-x{width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,transform .15s;font-family:inherit}
.lb-x:hover{background:#e11d48;transform:rotate(90deg)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:50px;height:50px;border:0;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;font-size:32px;line-height:1;padding-bottom:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;font-family:inherit}
.lb-nav:hover{background:rgba(255,255,255,.3)}
.lb-prev{right:16px}.lb-next{left:16px}
.lb-bar{position:absolute;left:0;right:0;bottom:0;z-index:3;display:flex;justify-content:space-between;gap:12px;align-items:center;padding:12px 20px 18px;pointer-events:none;background:linear-gradient(transparent,rgba(0,0,0,.55));font-size:14px}
.lb-cap{flex:1;text-align:center;color:rgba(255,255,255,.92);text-shadow:0 1px 6px rgba(0,0,0,.6)}
.lb-cnt{position:absolute;inset-inline-start:20px;bottom:18px;font-size:13px;color:rgba(255,255,255,.75);direction:ltr}
.lb button:focus-visible,.lb a:focus-visible{outline:2px solid #fff;outline-offset:2px}
@media(max-width:700px){.lb-nav{width:40px;height:40px;font-size:25px}.lb-prev{right:8px}.lb-next{left:8px}.lb-top{padding:10px}.lb-tools button,.lb-tools a{width:34px;height:34px;font-size:18px}}
@media(prefers-reduced-motion:reduce){.lb.on,.lb.loading .lb-stage::after{animation:none}.lb.anim .lb-img{transition:none}}