body { line-height: 1.7; }

    /* ===== READ PROGRESS BAR ===== */
    #readProgress{position:fixed;top:0;right:0;left:0;height:3px;background:linear-gradient(to left,var(--teal),var(--accent));transform-origin:right;transform:scaleX(0);z-index:9999;transition:transform .1s linear}

    /* ===== ARTICLE HERO ===== */
    .article-hero{margin:22px 0 0;border-radius:var(--radius-lg);overflow:hidden;position:relative;min-height:400px;display:flex;flex-direction:column;justify-content:flex-end}
    .ah-bg{position:absolute;inset:0;background:linear-gradient(135deg,#c5eef0 0%,#8ad8dc 50%,#5ec6cb 100%);display:flex;align-items:center;justify-content:center;font-size:11rem;user-select:none}
    .ah-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(7,50,60,.9) 0%,rgba(7,50,60,.4) 55%,transparent 100%)}
    .ah-body{position:relative;z-index:2;padding:36px 44px}
    .ah-cat{display:inline-flex;align-items:center;gap:6px;background:var(--teal);color:white;padding:5px 16px;border-radius:50px;font-size:.75rem;font-weight:700;margin-bottom:14px}
    .ah-body h1{font-size:2rem;font-weight:800;color:white;line-height:1.4;margin-bottom:14px;max-width:720px}
    .ah-body .ah-sub{font-size:.92rem;color:rgba(255,255,255,.75);max-width:620px;line-height:1.7;margin-bottom:20px}
    .ah-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
    .ah-author{display:flex;align-items:center;gap:10px}
    .ah-avatar{width:38px;height:38px;border-radius:50%;background:var(--teal-light);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:800;color:var(--teal-dark);border:2px solid rgba(255,255,255,.5);flex-shrink:0}
    .ah-author-name{font-size:.84rem;font-weight:700;color:white}
    .ah-author-role{font-size:.72rem;color:rgba(255,255,255,.6)}
    .ah-stats{display:flex;gap:16px;margin-right:auto}
    .ah-stat{display:flex;align-items:center;gap:5px;font-size:.78rem;color:rgba(255,255,255,.7)}
    .ah-stat i{font-size:.75rem}

    /* ===== LAYOUT ===== */
    .article-layout{display:grid;grid-template-columns:1fr 300px;gap:32px;padding:32px 0 60px;align-items:start}

    /* ===== ARTICLE BODY ===== */

    /* toc */
    .toc-box{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;margin-bottom:28px;box-shadow:var(--shadow-sm)}
    .toc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;cursor:pointer}
    .toc-title{display:flex;align-items:center;gap:10px;font-size:.95rem;font-weight:800;color:var(--navy)}
    .toc-title i{color:var(--teal)}
    .toc-toggle{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.9rem;transition:transform .3s}
    .toc-box.collapsed .toc-toggle{transform:rotate(-90deg)}
    .toc-list{list-style:none;display:flex;flex-direction:column;gap:2px}
    .toc-box.collapsed .toc-list{display:none}
    .toc-list li a{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:var(--radius-sm);text-decoration:none;color:var(--text-muted);font-size:.83rem;transition:all .2s}
    .toc-list li a:hover{background:var(--teal-pale);color:var(--teal)}
    .toc-list li a.active{background:var(--teal-pale);color:var(--teal);font-weight:700}
    .toc-list li a .toc-num{width:22px;height:22px;border-radius:7px;background:var(--teal-pale);color:var(--teal-dark);font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
    .toc-list li a.active .toc-num{background:var(--teal);color:white}

    /* article sections */
    .art-content{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow-sm);margin-bottom:24px}
    .art-section{margin-bottom:40px}
    .art-section:last-child{margin-bottom:0}
    .art-section h2{font-size:1.3rem;font-weight:800;color:var(--navy);margin-bottom:14px;display:flex;align-items:center;gap:12px;padding-bottom:12px;border-bottom:2px solid var(--teal-pale)}
    .art-section h2 .sec-num{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
    .art-section h3{font-size:1.05rem;font-weight:700;color:var(--navy-light);margin:20px 0 10px;display:flex;align-items:center;gap:8px}
    .art-section h3::before{content:'';width:4px;height:18px;background:var(--teal);border-radius:3px;display:inline-block}
    .art-section p{font-size:.9rem;color:var(--text);line-height:1.9;margin-bottom:14px}
    .art-section p:last-child{margin-bottom:0}

    /* article image */
    .art-img{border-radius:var(--radius);overflow:hidden;margin:22px 0;background:linear-gradient(135deg,var(--teal-pale),var(--teal-light));display:flex;align-items:center;justify-content:center;font-size:6rem;min-height:220px;position:relative;border:1px solid var(--border)}
    .art-img-caption{position:absolute;bottom:0;right:0;left:0;background:rgba(7,50,60,.65);padding:10px 16px;font-size:.75rem;color:rgba(255,255,255,.85);text-align:center;backdrop-filter:blur(4px)}

    /* warning / info / tip boxes */
    .art-box{border-radius:var(--radius-sm);padding:18px 20px;margin:20px 0;display:flex;align-items:flex-start;gap:14px}
    .art-box.warning{background:#fff3e0;border:1.5px solid #ffe0b2}
    .art-box.info{background:var(--teal-pale);border:1.5px solid var(--teal-light)}
    .art-box.danger{background:#ffebee;border:1.5px solid #ffcdd2}
    .art-box.tip{background:#e8f5e9;border:1.5px solid #c8e6c9}
    .ab-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;margin-top:2px}
    .art-box.warning .ab-icon{background:#ffe0b2;color:#e65100}
    .art-box.info .ab-icon{background:var(--teal-light);color:var(--teal-dark)}
    .art-box.danger .ab-icon{background:#ffcdd2;color:#c62828}
    .art-box.tip .ab-icon{background:#c8e6c9;color:#2e7d32}
    .ab-title{font-size:.84rem;font-weight:800;margin-bottom:5px}
    .art-box.warning .ab-title{color:#e65100}
    .art-box.info .ab-title{color:var(--teal-dark)}
    .art-box.danger .ab-title{color:#c62828}
    .art-box.tip .ab-title{color:#2e7d32}
    .ab-text{font-size:.82rem;color:var(--text-muted);line-height:1.7}

    /* blockquote */
    .art-quote{border-right:4px solid var(--teal);background:var(--teal-pale);padding:18px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:20px 0;font-size:.9rem;font-style:italic;color:var(--navy-light);line-height:1.8}
    .art-quote cite{display:block;margin-top:8px;font-size:.78rem;color:var(--text-muted);font-style:normal;font-weight:600}

    /* numbered list */
    .art-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin:14px 0}
    .art-list li{display:flex;align-items:flex-start;gap:12px;font-size:.88rem;color:var(--text);line-height:1.7}
    .art-list li .li-num{width:26px;height:26px;border-radius:8px;background:var(--teal);color:white;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
    .art-list li .li-icon{width:26px;height:26px;border-radius:8px;background:var(--teal-pale);color:var(--teal-dark);font-size:.75rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}

    /* symptom cards */
    .symptom-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0}
    .symptom-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;transition:all .25s;cursor:default}
    .symptom-card:hover{border-color:var(--teal-light);box-shadow:var(--shadow-sm)}
    .sc-num{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
    .sc-emoji{font-size:1.5rem;margin-bottom:8px;display:block}
    .sc-title{font-size:.88rem;font-weight:700;color:var(--navy);margin-bottom:4px}
    .sc-desc{font-size:.78rem;color:var(--text-muted);line-height:1.6}
    .sc-severity{display:inline-flex;align-items:center;gap:4px;font-size:.68rem;font-weight:700;padding:3px 10px;border-radius:20px;margin-top:8px}
    .sev-high{background:#ffebee;color:#c62828;border:1px solid #ffcdd2}
    .sev-mid{background:#fff3e0;color:#e65100;border:1px solid #ffe0b2}
    .sev-low{background:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}

    /* table */
    .art-table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.84rem;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border)}
    .art-table th{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;padding:12px 16px;text-align:right;font-weight:700}
    .art-table td{padding:11px 16px;border-bottom:1px solid var(--border);color:var(--text)}
    .art-table tr:last-child td{border-bottom:none}
    .art-table tr:nth-child(even) td{background:var(--teal-pale)}
    .art-table tr:hover td{background:#daf5f6}

    /* tags */
    .art-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;padding-top:22px;border-top:1px solid var(--border)}
    .art-tag{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:var(--teal-pale);border:1px solid var(--teal-light);border-radius:50px;font-size:.76rem;font-weight:600;color:var(--teal-dark);cursor:pointer;transition:all .2s;text-decoration:none}
    .art-tag:hover{background:var(--teal);color:white;border-color:var(--teal)}

    /* article actions bar */
    .art-actions{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;margin-bottom:24px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;box-shadow:var(--shadow-sm)}
    .art-action-btn{display:flex;align-items:center;gap:7px;padding:9px 18px;border-radius:50px;border:2px solid var(--border);background:white;font-family:'Vazir',sans-serif;font-size:.82rem;font-weight:600;color:var(--navy-light);cursor:pointer;transition:all .22s}
    .art-action-btn:hover{border-color:var(--teal);color:var(--teal);background:var(--teal-pale)}
    .art-action-btn.liked{border-color:#e53935;color:#e53935;background:#ffebee}
    .art-action-btn.saved{border-color:var(--gold);color:var(--gold);background:#fffde7}
    .art-action-btn i{font-size:.85rem}
    .art-action-sep{width:1px;height:28px;background:var(--border);margin:0 4px}
    .share-row{display:flex;gap:8px;margin-right:auto}
    .soc-chip{width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:.95rem;cursor:pointer;transition:all .22s;border:none;text-decoration:none}
    .soc-chip.tg{background:#e3f2fd;color:#0088cc}
    .soc-chip.wa{background:#e8f5e9;color:#25d366}
    .soc-chip.ig{background:#fce4ec;color:#e91e63}
    .soc-chip.lnk{background:#e3f2fd;color:#0077b5}
    .soc-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}

    /* author box */
    .author-box{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:28px 32px;margin-bottom:24px;box-shadow:var(--shadow-sm);display:flex;gap:22px;align-items:flex-start}
    .author-avatar-big{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--teal-pale),var(--teal-light));display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800;color:var(--teal-dark);flex-shrink:0;border:3px solid var(--teal-light);box-shadow:0 6px 20px rgba(14,159,165,.2)}
    .author-info h3{font-size:1.1rem;font-weight:800;color:var(--navy);margin-bottom:3px}
    .author-role{font-size:.78rem;color:var(--teal-dark);font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:6px}
    .author-role i{color:var(--teal)}
    .author-bio{font-size:.84rem;color:var(--text-muted);line-height:1.75;margin-bottom:14px}
    .author-stats{display:flex;gap:20px}
    .ast{display:flex;flex-direction:column;align-items:center}
    .ast-num{font-size:1.1rem;font-weight:800;color:var(--navy)}
    .ast-label{font-size:.7rem;color:var(--text-muted)}
    .author-follow{display:inline-flex;align-items:center;gap:7px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;border:none;padding:9px 22px;border-radius:50px;font-family:'Vazir',sans-serif;font-size:.82rem;font-weight:700;cursor:pointer;transition:all .2s;margin-top:14px}
    .author-follow:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(14,159,165,.35)}

    /* ===== COMMENTS ===== */
    .comments-section{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:24px}
    .comments-head{display:flex;align-items:center;justify-content:space-between;padding:20px 26px;border-bottom:1px solid var(--border)}
    .comments-head h2{font-size:1.05rem;font-weight:800;color:var(--navy);display:flex;align-items:center;gap:10px}
    .comments-head h2 i{color:var(--teal)}
    .comments-count{background:var(--teal-pale);color:var(--teal-dark);font-size:.78rem;font-weight:700;padding:4px 12px;border-radius:20px;border:1px solid var(--teal-light)}
    .comment-list{padding:0 26px}
    .comment-item{padding:20px 0;border-bottom:1px solid var(--border)}
    .comment-item:last-child{border-bottom:none}
    .comment-header{display:flex;align-items:center;gap:12px;margin-bottom:10px}
    .cmt-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:800;flex-shrink:0;border:2px solid var(--border)}
    .cmt-name{font-size:.88rem;font-weight:700;color:var(--navy)}
    .cmt-date{font-size:.74rem;color:var(--text-muted);margin-right:auto}
    .cmt-verified{font-size:.7rem;background:#e8f5e9;color:#2e7d32;padding:2px 8px;border-radius:20px;border:1px solid #c8e6c9}
    .comment-text{font-size:.85rem;color:var(--text);line-height:1.8;margin-bottom:12px}
    .comment-actions{display:flex;align-items:center;gap:12px}
    .cmt-like{display:flex;align-items:center;gap:5px;background:none;border:1.5px solid var(--border);border-radius:50px;padding:5px 13px;font-family:'Vazir',sans-serif;font-size:.75rem;color:var(--text-muted);cursor:pointer;transition:all .2s}
    .cmt-like:hover{border-color:var(--accent);color:var(--accent)}
    .cmt-like.liked{border-color:var(--accent);color:var(--accent);background:#fff5f0}
    .cmt-reply-btn{background:none;border:none;font-family:'Vazir',sans-serif;font-size:.75rem;color:var(--teal);cursor:pointer;font-weight:600;transition:color .2s}
    .cmt-reply-btn:hover{color:var(--teal-dark)}
    .comment-reply{margin-top:14px;padding:14px 16px;background:var(--teal-pale);border-radius:var(--radius-sm);border-right:3px solid var(--teal)}
    .cr-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
    .cr-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:800}
    .cr-name{font-size:.8rem;font-weight:700;color:var(--teal-dark);display:flex;align-items:center;gap:5px}
    .cr-badge{font-size:.65rem;background:var(--teal);color:white;padding:1px 7px;border-radius:20px}
    .cr-text{font-size:.82rem;color:var(--text-muted);line-height:1.7}

    /* comment form */
    .comment-form{padding:24px 26px;background:var(--teal-pale);border-top:1px solid var(--border)}
    .cf-title{font-size:.95rem;font-weight:800;color:var(--navy);margin-bottom:16px;display:flex;align-items:center;gap:8px}
    .cf-title i{color:var(--teal)}
    .cf-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
    .cf-input{width:100%;padding:11px 15px;border:2px solid var(--border);border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.86rem;color:var(--text);background:white;outline:none;transition:all .25s}
    .cf-input:focus{border-color:var(--teal);box-shadow:0 0 0 4px rgba(14,159,165,.1)}
    textarea.cf-input{resize:vertical;min-height:100px;line-height:1.7;margin-bottom:14px}
    .cf-rating{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .cf-rating label{font-size:.82rem;color:var(--text-muted);font-weight:600}
    .star-row{display:flex;gap:4px;direction:ltr}
    .star-row i{font-size:1.3rem;color:#e0e0e0;cursor:pointer;transition:color .15s}
    .star-row i.lit{color:var(--gold)}
    .cf-submit{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;border:none;padding:12px 28px;border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.9rem;font-weight:700;cursor:pointer;transition:all .25s;display:flex;align-items:center;gap:8px;box-shadow:0 4px 14px rgba(14,159,165,.3)}
    .cf-submit:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(14,159,165,.4)}

    /* ===== SIDEBAR ===== */
    .article-sidebar{display:flex;flex-direction:column;gap:20px}
    .side-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
    .side-sticky{position:sticky;top:90px}
    .sc-head{display:flex;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--border)}
    .sch-icon{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--teal-pale),var(--teal-light));display:flex;align-items:center;justify-content:center;color:var(--teal-dark);font-size:.9rem}
    .sc-head h3{font-size:.9rem;font-weight:700;color:var(--navy)}
    .sc-body{padding:16px 18px}

    /* sidebar toc */
    .stoc-list{list-style:none;display:flex;flex-direction:column;gap:2px}
    .stoc-list li a{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:var(--radius-sm);text-decoration:none;color:var(--text-muted);font-size:.8rem;transition:all .2s}
    .stoc-list li a:hover{background:var(--teal-pale);color:var(--teal)}
    .stoc-list li a.active{background:var(--teal-pale);color:var(--teal);font-weight:700}
    .stoc-dot{width:7px;height:7px;border-radius:50%;background:var(--border);flex-shrink:0;transition:background .2s}
    .stoc-list li a.active .stoc-dot{background:var(--teal)}

    /* read progress ring */
    .progress-ring-wrap{display:flex;align-items:center;justify-content:center;padding:18px;gap:16px}
    .ring-svg{transform:rotate(-90deg)}
    .ring-bg{fill:none;stroke:var(--border);stroke-width:5}
    .ring-fill{fill:none;stroke:var(--teal);stroke-width:5;stroke-linecap:round;stroke-dasharray:188;stroke-dashoffset:188;transition:stroke-dashoffset .3s}
    .ring-pct{font-size:1rem;font-weight:800;color:var(--navy);text-anchor:middle;dominant-baseline:central}
    .ring-info{text-align:center}
    .ring-info .ri-label{font-size:.75rem;color:var(--text-muted)}
    .ring-info .ri-time{font-size:.88rem;font-weight:700;color:var(--navy);margin-top:2px}

    /* related articles */
    .related-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);cursor:pointer;transition:all .2s;text-decoration:none}
    .related-item:last-child{border-bottom:none}
    .related-item:hover .rel-title{color:var(--teal)}
    .rel-thumb{width:68px;height:56px;border-radius:10px;background:var(--teal-pale);display:flex;align-items:center;justify-content:center;font-size:1.6rem;flex-shrink:0;border:1px solid var(--border)}
    .rel-cat{font-size:.68rem;font-weight:700;color:var(--teal-dark);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
    .rel-title{font-size:.8rem;font-weight:700;color:var(--navy);line-height:1.4;transition:color .2s}
    .rel-meta{font-size:.7rem;color:var(--text-muted);margin-top:4px;display:flex;align-items:center;gap:6px}

    /* newsletter */
    .nl-card{background:linear-gradient(135deg,var(--navy),var(--navy-light));border-radius:var(--radius);padding:22px 18px;text-align:center}
    .nl-card .nl-icon{font-size:2rem;margin-bottom:10px;display:block}
    .nl-card h3{font-size:.95rem;font-weight:800;color:white;margin-bottom:6px}
    .nl-card p{font-size:.77rem;color:rgba(255,255,255,.65);margin-bottom:16px;line-height:1.6}
    .nl-input{width:100%;padding:10px 14px;border:none;border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.82rem;background:rgba(255,255,255,.12);color:white;outline:none;margin-bottom:10px;border:1px solid rgba(255,255,255,.2)}
    .nl-input::placeholder{color:rgba(255,255,255,.45)}
    .nl-input:focus{background:rgba(255,255,255,.18);border-color:var(--teal-light)}
    .nl-btn{width:100%;padding:11px;background:var(--teal);color:white;border:none;border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:7px}
    .nl-btn:hover{background:var(--teal-dark)}

    /* ===== RELATED FULL ===== */
    .related-full-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
    .rf-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:all .28s;box-shadow:var(--shadow-sm);text-decoration:none;display:flex;flex-direction:column}
    .rf-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--teal-light)}
    .rf-cover{height:160px;display:flex;align-items:center;justify-content:center;font-size:4rem;position:relative}
    .rf-cat-tag{position:absolute;top:12px;right:12px;display:inline-flex;align-items:center;gap:4px;padding:4px 11px;border-radius:50px;font-size:.68rem;font-weight:700;backdrop-filter:blur(8px)}
    .tag-cat{background:rgba(14,159,165,.15);color:var(--teal-dark);border:1px solid rgba(14,159,165,.3)}
    .tag-health{background:rgba(76,175,80,.12);color:#2e7d32;border:1px solid rgba(76,175,80,.25)}
    .tag-food{background:rgba(255,193,7,.15);color:#a07000;border:1px solid rgba(255,193,7,.3)}
    .rf-body{padding:16px 18px;flex:1;display:flex;flex-direction:column}
    .rf-title{font-size:.9rem;font-weight:700;color:var(--navy);margin-bottom:6px;line-height:1.45}
    .rf-meta{font-size:.74rem;color:var(--text-muted);display:flex;gap:10px;margin-top:auto;padding-top:10px;flex-wrap:wrap}
    .rf-meta span{display:flex;align-items:center;gap:4px}

    /* ===== CART ===== */
    .cart-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:2000;opacity:0;visibility:hidden;transition:all .3s;backdrop-filter:blur(3px)}
    .cart-overlay.show{opacity:1;visibility:visible}
    .cart-sidebar{position:fixed;left:0;top:0;bottom:0;width:360px;background:white;z-index:2100;box-shadow:-8px 0 40px rgba(0,0,0,.15);transform:translateX(-100%);transition:transform .38s cubic-bezier(.77,0,.18,1);display:flex;flex-direction:column}
    .cart-sidebar.open{transform:translateX(0)}
    .cart-header{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--border);flex-shrink:0}
    .cart-header h3{font-size:1.1rem;font-weight:700;color:var(--navy)}
    .cart-close-btn{background:none;border:none;cursor:pointer;font-size:1.2rem;color:var(--text-muted);transition:color .2s}
    .cart-close-btn:hover{color:var(--accent)}
    .cart-items-wrap{flex:1;overflow-y:auto;padding:16px 22px}
    .cart-footer{flex-shrink:0;padding:20px 22px;border-top:1px solid var(--border)}
    .cart-total-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
    .cart-total-label{font-weight:600;color:var(--text-muted)}
    .cart-total-val{font-size:1.1rem;font-weight:800;color:var(--teal-dark)}
    .checkout-btn{width:100%;padding:14px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;border:none;border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s}
    .checkout-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(14,159,165,.35)}

    /* ===== MODAL ===== */
    .modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:3000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s;backdrop-filter:blur(4px)}
    .modal-overlay.show{opacity:1;visibility:visible}
    .modal-wrap{animation:slideUp .35s cubic-bezier(.17,.67,.52,1.3)}
    @keyframes slideUp{from{transform:translateY(40px) scale(.95);opacity:0}to{transform:none;opacity:1}}
    .modal-box{background:white;border-radius:var(--radius-lg);padding:36px 40px;width:360px;max-width:calc(100vw - 40px);box-shadow:var(--shadow-lg);position:relative}
    .modal-close{position:absolute;top:16px;left:16px;background:none;border:none;font-size:1.1rem;cursor:pointer;color:var(--text-muted);transition:color .2s}
    .modal-close:hover{color:var(--accent)}
    .modal-box h3{font-size:1.4rem;font-weight:800;color:var(--navy);margin-bottom:6px}
    .modal-box p{font-size:.85rem;color:var(--text-muted);margin-bottom:22px}
    .modal-input{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.88rem;background:var(--teal-pale);outline:none;margin-bottom:12px;transition:all .25s;color:var(--text)}
    .modal-input:focus{border-color:var(--teal);background:white}
    .modal-submit{width:100%;padding:13px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:white;border:none;border-radius:var(--radius-sm);font-family:'Vazir',sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s;margin-top:4px}
    .modal-submit:hover{box-shadow:0 6px 20px rgba(14,159,165,.35)}
    .modal-msg{font-size:.82rem;margin-top:10px;min-height:20px;text-align:center}

    /* ===== TOAST ===== */
    .toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--navy);color:white;padding:14px 24px;border-radius:50px;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:10px;z-index:9999;box-shadow:0 8px 30px rgba(0,0,0,.25);transition:all .4s cubic-bezier(.17,.67,.52,1.3);white-space:nowrap}
    .toast.show{transform:translateX(-50%) translateY(0)}
    .toast i{color:#4ade80}

    /* ===== RESPONSIVE ===== */
    @media(max-width:1024px){
      .article-layout{grid-template-columns:1fr 270px}
      .symptom-grid{grid-template-columns:1fr}
      .related-full-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:860px){
      .article-layout{grid-template-columns:1fr}
      .article-sidebar{order:-1}
      .side-sticky{position:static}
      .ah-body{padding:24px 22px}
      .ah-body h1{font-size:1.5rem}
      .art-content{padding:24px 20px}
      .author-box{flex-direction:column}
      .cf-row{grid-template-columns:1fr}
    }
    @media(max-width:560px){
      .symptom-grid{grid-template-columns:1fr}
      .related-full-grid{grid-template-columns:1fr}
      .share-row{margin-right:0}
      .art-actions{justify-content:center}
      .ah-stats{display:none}
    }