:root{--bg-dark:#0f172a;--bg-card:#1e293b;--primary:#3b82f6;--primary-glow:rgba(59, 130, 246, 0.4);--text-main:#fcfcfc;--text-muted:#e0e0d9;--border:#334155;--shadow:none;--c-red:#f43f5e;--c-blue:#3b82f6;--c-green:#22c55e;--c-purple:#a855f7;--c-orange:#f97316;--c-yellow:#eab308;--c-cyan:#06b6d4;--c-pink:#ec4899;--c-grey:#64748b;--c-indigo:#6366f1;--c-white:#ffffff}body.light-mode{--bg-dark:#f8fafc;--bg-card:#ffffff;--text-main:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--shadow:0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);font-family:'Segoe UI',system-ui,-apple-system,sans-serif;line-height:1.6;transition:background-color 0.3s,color 0.3s}a{text-decoration:none;color:inherit;transition:0.2s}ul{list-style:none}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}.navbar{background:rgb(15 23 42 / .95);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000;backdrop-filter:blur(10px);height:70px;display:flex;align-items:center}body.light-mode .navbar{background:rgb(255 255 255 / .95)}.nav-container{width:100%;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.4rem;font-weight:800;display:flex;align-items:center}.highlight{color:var(--primary)}.nav-right,.nav-left{display:flex;align-items:center;gap:1rem}.nav-link{color:var(--text-muted);font-size:.9rem;font-weight:500}.nav-link:hover{color:var(--primary)}.btn-primary.small{background:var(--primary);color:#fff;padding:.5rem 1rem;border-radius:6px;font-weight:600;font-size:.9rem}.btn-primary.small:hover{opacity:.9}.theme-btn{background:#fff0;border:1px solid var(--border);color:var(--text-muted);width:35px;height:35px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:0.2s}.theme-btn:hover{border-color:var(--primary);color:var(--primary)}.back-icon{color:var(--text-muted);font-size:1.1rem}.back-icon:hover{color:var(--primary)}.nav-title{font-weight:600;font-size:1rem}.toc-btn{background:#fff0;border:1px solid var(--border);color:var(--text-muted);padding:5px 12px;border-radius:4px;cursor:pointer;font-size:.85rem;display:none}.home-hero{padding:4rem 1.5rem;text-align:center;border-bottom:1px solid var(--border);background:radial-gradient(circle at center,#1e293b,#0f172a)}.badge-pill{display:inline-block;background:rgb(59 130 246 / .1);color:var(--primary);padding:5px 15px;border-radius:50px;font-size:.8rem;margin-bottom:1rem;border:1px solid rgb(59 130 246 / .2)}.home-hero h1{font-size:2.5rem;margin:0 0 1rem;line-height:1.2}.text-gradient{background:linear-gradient(to right,#3b82f6,#8b5cf6);-webkit-background-clip:text;color:#fff0}.home-hero p{color:var(--text-muted);margin-bottom:2rem}.hero-search-wrapper{position:relative;max-width:600px;margin:0 auto 1.5rem}.hero-search{position:relative;display:flex;z-index:102}.hero-search input{width:100%;padding:1rem 1rem 1rem 3rem;border-radius:50px;border:2px solid var(--border);background:rgb(255 255 255 / .05);color:#fff;font-size:1rem}.hero-search input:focus{border-color:var(--primary);outline:none;background:var(--bg-card)}.search-icon{position:absolute;left:1.2rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-btn{position:absolute;right:5px;top:5px;bottom:5px;background:var(--primary);color:#fff;border:none;padding:0 1.5rem;border-radius:40px;cursor:pointer;font-weight:600}.search-results-box{position:absolute;top:100%;left:0;right:0;background:var(--bg-card);border:1px solid var(--border);border-top:none;border-radius:0 0 12px 12px;z-index:101;display:none;overflow:hidden;margin-top:5px;box-shadow:0 10px 30px rgb(0 0 0 / .5)}.result-item{display:flex;align-items:center;padding:.8rem 1rem;border-bottom:1px solid rgb(255 255 255 / .05);text-align:left;cursor:pointer}.result-item:hover{background:rgb(59 130 246 / .1)}.r-icon{width:30px;height:30px;background:rgb(255 255 255 / .05);border-radius:6px;display:flex;align-items:center;justify-content:center;margin-right:10px;color:var(--primary)}.r-info h4{margin:0;font-size:.9rem;color:var(--text-main)}.r-info span{font-size:.75rem;color:var(--text-muted)}.quick-tags{font-size:.9rem;color:var(--text-muted)}.quick-tags a{color:var(--text-muted);text-decoration:underline;margin:0 5px}.section-wrapper{margin-top:3rem;margin-bottom:3rem}.section-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:1.5rem;border-bottom:1px solid var(--border);padding-bottom:10px}.section-header h2{font-size:1.4rem;display:flex;align-items:center;gap:10px;margin:0}.section-header i{color:var(--primary)}.view-all{color:var(--primary);font-size:.9rem;font-weight:600}.horizontal-scroll,.project-scroll{display:flex;gap:1.5rem;overflow-x:auto;padding-bottom:1.5rem;scroll-behavior:smooth;padding-top:1.5rem;-webkit-overflow-scrolling:touch}.horizontal-scroll::-webkit-scrollbar,.project-scroll::-webkit-scrollbar{height:6px}.horizontal-scroll::-webkit-scrollbar-thumb,.project-scroll::-webkit-scrollbar-thumb{background:#334155;border-radius:10px}.project-spotlight{background:rgb(255 255 255 / .02);border:1px solid var(--border);border-radius:16px;padding:2rem}.spotlight-header{text-align:center;margin-bottom:2rem}.project-spotlight{background:rgb(255 255 255 / .02);border:1px solid var(--border);border-radius:12px;padding:2rem}.spotlight-header{text-align:center;margin-bottom:2rem}.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.project-card-home{display:flex;background:var(--bg-dark);border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:0.2s}.project-card-home:hover{border-color:var(--primary);transform:translateY(-3px)}.p-image{width:70px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}.c-red-bg{background:#f43f5e}.c-green-bg{background:#22c55e}.c-purple-bg{background:#a855f7}.c-grey-bg{background:#94a3b8}.p-info{padding:1rem;display:flex;flex-direction:column;justify-content:center}.p-info h3{font-size:1rem;margin:0 0 5px 0}.p-info p{font-size:.8rem;color:var(--text-muted);margin:0 0 10px 0}.p-link{font-size:.8rem;color:var(--primary);font-weight:700}.domain-section{margin-bottom:3rem}.domain-group{margin-bottom:3rem}.group-title{font-size:1.3rem;margin-bottom:1rem;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);padding-bottom:10px}.cat-item{cursor:pointer}.tech-card{min-width:140px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:1.5rem 1rem;text-align:center;transition:0.2s;box-shadow:var(--shadow)}.tech-card:hover{transform:translateY(-5px);border-color:var(--primary)}.tech-icon{font-size:2rem;margin-bottom:.8rem}.tech-card h3{font-size:1rem;margin:0 0 3px 0;color:var(--text-main)}.tech-card p{font-size:.8rem;color:var(--text-muted);margin:0}.project-card-home{min-width:280px;max-width:300px;display:flex;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:0.2s;flex-shrink:0;box-shadow:var(--shadow)}.project-card-home:hover{border-color:var(--primary);transform:translateY(-5px)}.p-image{width:80px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff;flex-shrink:0}.p-info{padding:1rem;display:flex;flex-direction:column;justify-content:center}.p-info h3{font-size:1rem;margin:0 0 5px 0}.p-info p{font-size:.85rem;color:var(--text-muted);margin:0 0 10px 0}.p-link{font-size:.8rem;color:var(--primary);font-weight:700}.grid-essentials{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem}.mini-card{background:var(--bg-card);border:1px solid var(--border);padding:.8rem;border-radius:8px;display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:500;transition:0.2s;box-shadow:var(--shadow)}.mini-card:hover{border-color:var(--primary);color:var(--primary)}.post-card-row{display:flex;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:0.2s;text-decoration:none;box-shadow:var(--shadow)}.post-card-row:hover{border-color:var(--primary);transform:translateX(5px)}.pc-img{width:80px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff;flex-shrink:0}.pc-content{padding:1rem;flex:1}.pc-content h3{margin:0 0 .5rem 0;font-size:1.1rem;color:var(--text-main)}.pc-content p{margin:0 0 .8rem 0;font-size:.9rem;color:var(--text-muted)}.pc-meta{display:flex;gap:1rem;font-size:.8rem;color:var(--text-muted);border-top:1px solid var(--border);padding-top:.5rem}.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem}.lib-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:1.2rem;display:flex;align-items:center;gap:12px;transition:0.2s;box-shadow:var(--shadow)}.lib-card:hover{transform:translateY(-3px);border-color:var(--primary)}.lib-card i{font-size:1.5rem}.lib-card span{font-weight:600;font-size:.95rem}.c-red{color:#f43f5e}.c-red-bg{background:#f43f5e}.c-blue{color:#3b82f6}.c-blue-bg{background:#3b82f6}.c-green{color:#22c55e}.c-green-bg{background:#22c55e}.c-purple{color:#a855f7}.c-purple-bg{background:#a855f7}.c-orange{color:#f97316}.c-pink{color:#ec4899}.c-pink-bg{background:#ec4899}.c-yellow{color:#eab308}.c-cyan{color:#06b6d4}.c-dark{color:#fff}.c-dark-bg{background:#334155}.c-grey{color:#94a3b8}.c-indigo-bg{background:#6366f1}.c-indigo{color:#6366f1}.c-dark-green-bg{background:#003a2a}.fa-dolphin:before{content:"\f544"}.fa-feather:before{content:"\f52d"}.lib-layout{display:grid;grid-template-columns:240px 1fr;gap:3rem;padding:3rem 1.5rem}.lib-sidebar{border-right:1px solid var(--border);padding-right:1.5rem}.sticky-menu{position:sticky;top:100px}.sticky-menu h4{text-transform:uppercase;color:var(--text-muted);font-size:.8rem;letter-spacing:1px;margin-bottom:1rem}.sticky-menu ul{padding:0}.sticky-menu li{margin-bottom:5px}.sticky-menu a{display:flex;align-items:center;gap:10px;padding:10px;border-radius:8px;color:var(--text-muted);transition:0.2s}.sticky-menu a:hover,.sticky-menu a.active{background:var(--bg-card);color:var(--text-main)}.sticky-menu i{width:20px;text-align:center}.mobile-cat-filter{position:sticky;top:60px;background:var(--bg-dark);padding:1rem;border-bottom:1px solid var(--border);display:none;gap:10px;overflow-x:auto;white-space:nowrap;z-index:99}.cat-pill{padding:5px 15px;border-radius:20px;background:var(--bg-card);border:1px solid var(--border);font-size:.85rem;color:var(--text-muted)}.cat-pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}.layout-wrapper{display:grid;grid-template-columns:260px 1fr 220px;max-width:1400px;margin:0 auto;min-height:100vh}.sidebar-nav{border-right:1px solid var(--border);background:var(--bg-dark)}.sidebar-inner{position:sticky;top:60px;height:calc(100vh - 60px);overflow-y:auto;padding:1.5rem}.sidebar-inner h3{font-size:.8rem;text-transform:uppercase;color:var(--text-muted);margin-bottom:1rem}.series-list li{margin-bottom:4px}.series-list a{display:flex;align-items:center;gap:8px;padding:8px;font-size:.9rem;color:var(--text-muted);border-radius:6px;transition:0.2s}.series-list a:hover{background:var(--bg-card);color:var(--text-main)}.series-list a.active{background:rgb(59 130 246 / .1);color:var(--primary);font-weight:500}.article-content{background:var(--bg-dark);padding:2rem}.content-width{max-width:750px;margin:0 auto}.article-header{margin-bottom:2rem}.badge.red{background:rgb(244 63 94 / .2);color:#f43f5e;padding:4px 8px;border-radius:4px;font-size:.75rem;font-weight:700}.article-header h1{font-size:2rem;margin:1rem 0;line-height:1.3}.article-meta{color:var(--text-muted);font-size:.9rem;display:flex;gap:1rem}.divider{border:0;border-top:1px solid var(--border);margin:2rem 0}.lead{font-size:1.15rem;color:var(--text-muted);line-height:1.7;margin-bottom:1.5rem}.typography{padding:0 10px}.typography p{font-size:1.05rem;line-height:1.7;margin-bottom:1.5rem;color:var(--text-muted);text-align:justify}.typography h2{font-size:1.5rem;margin:2.5rem 0 1rem;color:var(--text-main);scroll-margin-top:80px}.typography h3{font-size:1.3rem;margin:2rem 0 1rem;color:var(--text-main)}.typography ul{list-style:disc;margin-left:20px;margin-bottom:1.5rem;color:var(--text-muted)}.code-container{border:1px solid var(--border);border-radius:8px;overflow:hidden;margin:1.5rem 0;background:#1d1f21}.code-bar{background:#2d2d2d;padding:5px 10px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #333}.code-lang{font-family:monospace;font-size:.8rem;color:#888}.copy-btn{background:none;border:none;color:#888;cursor:pointer}.copy-btn:hover{color:#fff}.author-box{background:var(--bg-card);border:1px solid var(--border);padding:1.5rem;border-radius:8px;display:flex;align-items:center;gap:1.5rem;margin-top:3rem;box-shadow:var(--shadow)}.author-img{width:60px;height:60px;background:var(--bg-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary)}.author-box h4{margin:0 0 5px 0}.author-box p{margin:0;font-size:.9rem;color:var(--text-muted)}.article-footer{display:flex;gap:1rem;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border)}.nav-card{flex:1;background:var(--bg-card);padding:1rem;border-radius:8px;border:1px solid var(--border);transition:0.2s}.nav-card:hover{border-color:var(--primary)}.nav-card small{display:block;color:var(--text-muted);font-size:.8rem;margin-bottom:4px}.nav-card span{display:block;font-weight:600}.nav-card.next{text-align:right}.nav-card.disabled{opacity:.5;pointer-events:none}.toc-sidebar{border-left:1px solid var(--border);padding:2rem 1rem;position:sticky;top:60px;height:calc(100vh - 60px);overflow-y:auto}.toc-header{display:flex;justify-content:space-between;margin-bottom:1rem}.toc-header h4{font-size:.8rem;text-transform:uppercase;color:var(--text-muted);margin:0}#close-toc{background:none;border:none;color:var(--text-main);display:none;font-size:1.2rem}.toc-links{list-style:none;padding:0;border-left:2px solid var(--border)}.toc-links li a{display:block;padding:5px 0 5px 15px;color:var(--text-muted);font-size:.85rem;border-left:2px solid #fff0;margin-left:-2px;transition:0.2s}.toc-links li a:hover{color:var(--text-main)}.toc-links li a.active{color:var(--primary);border-left-color:var(--primary)}.pagination-wrapper{display:flex;justify-content:center;gap:.5rem;margin-top:3rem;margin-bottom:2rem}.page-btn{padding:.5rem 1rem;background:var(--bg-card);border:1px solid var(--border);color:var(--text-main);border-radius:6px;font-size:.9rem}.page-btn:hover{border-color:var(--primary);color:var(--primary)}.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.page-btn.disabled{opacity:.5;pointer-events:none}.ad-slot{display:flex;flex-direction:column;align-items:center;justify-content:center;margin:2rem auto;background:var(--bg-card);border:1px dashed var(--border);border-radius:8px;width:100%;text-align:center;min-height:250px}.ad-label{font-size:.6rem;color:var(--text-muted);text-transform:uppercase;margin:5px 0}.ad-placeholder{color:var(--text-muted);font-size:.8rem}.mt-4{margin-top:1.5rem}@media (min-width:992px){.home-billboard,.home-banner,.content-ad{min-height:90px}.sidebar-ad{min-height:250px}}.auth-wrapper{min-height:calc(100vh - 140px);display:flex;align-items:center;justify-content:center;padding:2rem 1.5rem;padding-top:60px!important}.auth-card{background:var(--bg-card);border:1px solid var(--border);padding:2.5rem;border-radius:12px;width:100%;max-width:450px;box-shadow:0 10px 30px rgb(0 0 0 / .2)}.auth-header{text-align:center;margin-bottom:2rem}.auth-header h1{font-size:1.8rem;margin-bottom:.5rem}.auth-header p{color:var(--text-muted);font-size:.95rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-size:.9rem;font-weight:500}.form-control{width:100%;padding:.8rem 1rem;background:var(--bg-dark);border:1px solid var(--border);border-radius:6px;color:var(--text-main);font-size:1rem}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgb(59 130 246 / .1)}textarea.form-control{resize:vertical;min-height:120px}.btn-block{width:100%;justify-content:center;padding:.9rem}.social-login{margin-top:2rem;text-align:center}.divider-text{position:relative;margin:1.5rem 0;color:var(--text-muted);font-size:.85rem}.divider-text::before,.divider-text::after{content:"";position:absolute;top:50%;width:40%;height:1px;background:var(--border)}.divider-text::before{left:0}.divider-text::after{right:0}.social-btns{display:flex;gap:1rem}.btn-social{flex:1;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--bg-dark);border:1px solid var(--border);color:var(--text-main);padding:.7rem;border-radius:6px;cursor:pointer;transition:0.2s}.btn-social:hover{background:var(--bg-card);border-color:var(--primary)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;margin-top:3rem}.info-item{display:flex;gap:1rem;margin-bottom:2rem}.info-icon{width:50px;height:50px;background:rgb(59 130 246 / .1);color:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:3rem 0;text-align:center;border:1px solid var(--border);border-radius:12px;padding:2rem}.stat-num{font-size:2rem;font-weight:800;color:var(--primary);display:block}.policy-content{max-width:800px;margin:0 auto}.last-updated{font-size:.9rem;color:var(--text-muted);margin-bottom:2rem}.alert-box{padding:1rem;border-radius:6px;display:flex;gap:1rem;margin:1.5rem 0;font-size:.95rem}.alert-box.info{background:rgb(59 130 246 / .1);border-left:4px solid var(--primary);color:#bfdbfe}footer{background-color:#0b1120;padding:4rem 0 0;margin-top:5rem;border-top:1px solid var(--border);font-size:.95rem;color:var(--text-main)}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:3rem;margin-bottom:3rem}.footer-col h3{color:#fff;font-size:1.5rem;margin:0 0 1rem 0;font-weight:800}.footer-col h4{color:var(--text-muted);font-size:.85rem;text-transform:uppercase;margin-bottom:1.2rem;font-weight:600}.footer-col p{line-height:1.6;margin-bottom:1.5rem}.footer-col a:not(.email-btn):not(.social-links a){display:block;color:--text-main;margin-bottom:.6rem;transition:0.2s}.footer-col a:hover{color:var(--primary)}.social-links{display:flex;gap:1rem;margin-top:1rem}.social-links a{width:35px;height:35px;background:rgb(255 255 255 / .05);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;border-radius:6px;color:var(--text-muted);transition:0.3s}.social-links a:hover{background:var(--primary);border-color:var(--primary);color:#fff}.email-btn{display:inline-flex;align-items:center;gap:10px;background:rgb(59 130 246 / .1);color:var(--primary);padding:.8rem 1.2rem;border-radius:8px;font-weight:600;border:1px solid rgb(59 130 246 / .3);transition:0.2s;margin-bottom:1rem}.email-btn:hover{background:var(--primary);color:#fff !important}.location-info{color:var(--text-muted);font-size:.9rem;display:flex;align-items:center;gap:10px;margin-top:1rem}.footer-bottom{background:#020617;text-align:center;padding:1.5rem .5rem;border-top:1px solid #1e293b}.mobile-menu-btn{background:#fff0;border:1px solid var(--border);color:var(--text-muted);font-size:1.2rem;padding:6px 14px;border-radius:6px;cursor:pointer;display:none;margin-right:15px}.sidebar-mobile-header{display:none;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.close-btn{background:#fff0;border:1px solid var(--border);color:var(--text-main);width:35px;height:35px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center}.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgb(0 0 0 / .7);z-index:1999;opacity:0;transition:opacity 0.3s ease;backdrop-filter:blur(2px)}@media (max-width:1024px){.mobile-menu-btn{display:block}.sidebar-nav{display:block!important;position:fixed;top:0;left:0;height:100vh;width:280px;z-index:2000;background-color:var(--bg-dark);border-right:1px solid var(--border);transform:translateX(-100%);transition:transform 0.3s ease-in-out;box-shadow:5px 0 15px rgb(0 0 0 / .5)}.sidebar-inner{top:15px!important}.sidebar-mobile-header{display:flex}.sidebar-inner{height:100%;overflow-y:auto}.sidebar-nav.active{transform:translateX(0)}.sidebar-overlay.active{display:block;opacity:1}}#toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px;pointer-events:none}.toast-notification{background:var(--bg-card);border:1px solid var(--border);color:var(--text-main);padding:15px 20px;min-width:300px;border-radius:8px;box-shadow:0 10px 30px rgb(0 0 0 / .5);display:flex;align-items:center;gap:12px;pointer-events:auto;animation:slideInRight 0.4s ease forwards;transition:opacity 0.5s,transform 0.5s;border-left:4px solid var(--primary)}.toast-notification.success{border-left-color:#22c55e}.toast-notification.success 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p{color:var(--text-muted);font-size:.9rem}.downloads-list{display:flex;flex-direction:column;gap:15px}.download-item{display:flex;align-items:center;background:rgb(255 255 255 / .02);border:1px solid var(--border);padding:15px;border-radius:10px;transition:transform 0.2s,background 0.2s}.download-item:hover{background:rgb(255 255 255 / .05);transform:translateY(-2px)}.d-icon{width:50px;height:50px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-right:15px;flex-shrink:0}.d-info{flex:1}.d-info h4{font-size:1rem;color:var(--text-main);margin-bottom:4px}.d-info span{font-size:.85rem;color:var(--text-muted)}.btn-download{background:#fff0;border:1px solid var(--border);color:var(--text-main);padding:8px 16px;border-radius:6px;font-size:.9rem;text-decoration:none;transition:0.2s;display:flex;align-items:center;gap:8px;white-space:nowrap}.btn-download:hover{background:var(--primary);border-color:var(--primary);color:#fff}@media (max-width:500px){.hide-mobile{display:none}.btn-download{padding:10px}.d-info h4{font-size:.9rem}}@media (max-width:768px){.profile-layout{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}html{scroll-behavior:smooth}.toc-links a.active{color:#007bff;font-weight:700;text-decoration:underline}html{scroll-behavior:smooth}.layout-wrapper{display:grid;grid-template-columns:260px 1fr 220px;max-width:1400px;margin:0 auto;min-height:100vh}.sidebar-nav{border-right:1px solid var(--border);background:var(--bg-dark)}.sidebar-inner{position:sticky;top:80px;height:calc(100vh - 80px);overflow-y:auto;padding:1.5rem;scrollbar-width:thin;scrollbar-color:#888 #fff0}.sidebar-inner::-webkit-scrollbar{width:6px}.sidebar-inner::-webkit-scrollbar-track{background:#fff0}.sidebar-inner::-webkit-scrollbar-thumb{background-color:#888;border-radius:10px}.sidebar-inner h3{font-size:.8rem;text-transform:uppercase;color:var(--text-muted);margin-bottom:1rem}.series-list li{margin-bottom:4px}.series-list a{display:flex;align-items:center;gap:8px;padding:8px;font-size:.9rem;color:var(--text-muted);border-radius:6px;transition:0.2s}.series-list a:hover{background:var(--bg-card);color:var(--text-main)}.series-list a.active{background:rgb(59 130 246 / .1);color:var(--primary);font-weight:500}.article-content{background:var(--bg-dark);padding:2rem}.content-width{max-width:750px;margin:0 auto}.article-header{margin-bottom:2rem}.badge.red{background:rgb(244 63 94 / .2);color:#f43f5e;padding:4px 8px;border-radius:4px;font-size:.75rem;font-weight:700}.article-header h1{font-size:2rem;margin:1rem 0;line-height:1.3}.article-meta{color:var(--text-muted);font-size:.9rem;display:flex;gap:1rem}.divider{border:0;border-top:1px solid var(--border);margin:2rem 0}.typography p{font-size:1.05rem;line-height:1.7;margin-bottom:1.5rem;color:var(--text-muted)}.typography h2{font-size:1.5rem;margin:2.5rem 0 1rem;color:var(--text-main)}.typography h3{font-size:1.3rem;margin:2rem 0 1rem;color:var(--text-main)}.typography ul{list-style:disc;margin-left:20px;margin-bottom:1.5rem;color:var(--text-muted)}.code-container{border:1px solid var(--border);border-radius:8px;overflow:hidden;margin:1.5rem 0;background:#1d1f21}.author-box{background:var(--bg-card);border:1px solid var(--border);padding:1.5rem;border-radius:8px;display:flex;align-items:center;gap:1.5rem;margin-top:3rem}.author-img{width:60px;height:60px;background:var(--bg-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary)}.article-footer{display:flex;gap:1rem;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border)}.nav-card{flex:1;background:var(--bg-card);padding:1rem;border-radius:8px;border:1px solid var(--border);transition:0.2s}.nav-card:hover{border-color:var(--primary)}.nav-card small{display:block;color:var(--text-muted);font-size:.8rem;margin-bottom:4px}.nav-card span{display:block;font-weight:600}.nav-card.next{text-align:right}.nav-card.disabled{opacity:.5;pointer-events:none}.toc-sidebar{border-left:1px solid var(--border);padding:2rem 1rem;position:sticky;top:60px;height:calc(100vh - 60px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#888 #fff0}.toc-header{display:flex;justify-content:space-between;margin-bottom:1rem}.toc-links li a{display:block;padding:10px 0 5px 15px;color:var(--text-muted);font-size:.85rem;border-left:2px solid #fff0;margin-left:-2px}.toc-links li a:hover{color:var(--text-main)}.video-link-wrapper{position:relative;display:block;width:100%;max-width:100%;border-radius:12px;overflow:hidden;margin-bottom:2rem;box-shadow:0 4px 15px rgb(0 0 0 / .3);transition:transform 0.2s ease,box-shadow 0.2s ease;border:1px solid var(--border)}.video-link-wrapper:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgb(0 0 0 / .4)}.video-thumb{width:100%;height:auto;display:block;object-fit:cover;aspect-ratio:16/9;filter:brightness(.9);transition:filter 0.2s}.video-link-wrapper:hover .video-thumb{filter:brightness(.7)}.play-button-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80px;height:50px;background:rgb(255 0 0 / .9);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.8rem;box-shadow:0 0 20px rgb(0 0 0 / .5);transition:transform 0.2s,background 0.2s;padding-left:5px}.video-link-wrapper:hover .play-button-overlay{transform:translate(-50%,-50%) scale(1.1);background:red}.fallback-thumb{width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,#0845a9 0%,#0f172a 100%);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:2rem;color:#fff;position:relative}.fallback-thumb::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 2px 2px,rgb(255 255 255 / .03) 1px,transparent 0);background-size:24px 24px}.fallback-cat-badge{background:rgb(59 130 246 / .15);color:#60a5fa;border:1px solid rgb(59 130 246 / .2);padding:5px 12px;border-radius:50px;font-size:.8rem;font-weight:600;margin-bottom:15px;text-transform:uppercase;letter-spacing:.5px;z-index:2}.fallback-post-title{font-size:1.6rem;font-weight:700;line-height:1.4;max-width:80%;z-index:2;text-shadow:0 4px 10px rgb(0 0 0 / .5);margin:0}@media (max-width:1024px){.layout-wrapper{display:flex;flex-direction:column}.sidebar-nav,.toc-sidebar{display:none}.article-content{padding:1.5rem 1rem;width:100%}}.profile-layout{display:grid;grid-template-columns:280px 1fr;gap:2rem;align-items:start}.profile-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:2rem 1.5rem;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}.p-avatar-lg{width:80px;height:80px;background:var(--primary);color:#fff;font-size:2.5rem;font-weight:700;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:.5rem}.badge-pro{background:rgb(34 197 94 / .1);color:#22c55e;font-size:.75rem;padding:4px 12px;border-radius:20px;font-weight:600;border:1px solid rgb(34 197 94 / .2)}.profile-nav{margin-top:1.5rem;display:flex;flex-direction:column;gap:5px}.profile-nav a{padding:10px 15px;border-radius:8px;color:var(--text-muted);font-size:.95rem;display:flex;align-items:center;gap:10px;transition:0.2s;text-decoration:none}.profile-nav a:hover,.profile-nav a.active{background:rgb(255 255 255 / .05);color:var(--text-main)}.profile-nav a.disabled{opacity:.5;pointer-events:none}.content-box{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem}.box-header{margin-bottom:2rem;border-bottom:1px solid var(--border);padding-bottom:1rem}.box-header h2{font-size:1.5rem;margin-bottom:5px;color:var(--text-main)}.box-header p{color:var(--text-muted)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:8px;color:var(--text-muted);font-size:.9rem}.form-control[readonly]{background:rgb(0 0 0 / .2);cursor:default;color:var(--text-muted)}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.stat-card{background:var(--bg-card);border:1px solid var(--border);padding:1.5rem;border-radius:12px;text-align:center}.stat-card h3{font-size:2rem;color:var(--primary);margin-bottom:5px}.stat-card p{color:var(--text-muted);font-size:.9rem}@media (max-width:768px){.profile-layout{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}.profile-layout{display:grid;grid-template-columns:280px 1fr;gap:2rem;align-items:start}.profile-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:2rem 1.5rem;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}.p-avatar-lg{width:80px;height:80px;background:var(--primary);color:#fff;font-size:2.5rem;font-weight:700;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:.5rem}.badge-pro{background:rgb(34 197 94 / .1);color:#22c55e;font-size:.75rem;padding:4px 12px;border-radius:20px;font-weight:600;border:1px solid rgb(34 197 94 / .2)}.profile-nav{margin-top:1.5rem;display:flex;flex-direction:column;gap:5px}.profile-nav a{padding:10px 15px;border-radius:8px;color:var(--text-muted);font-size:.95rem;display:flex;align-items:center;gap:10px;transition:0.2s;text-decoration:none}.profile-nav a:hover,.profile-nav a.active{background:rgb(255 255 255 / .05);color:var(--text-main)}.profile-nav a.disabled{opacity:.5;pointer-events:none}.content-box{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem}.box-header{margin-bottom:2rem;border-bottom:1px solid var(--border);padding-bottom:1rem}.box-header h2{font-size:1.5rem;margin-bottom:5px;color:var(--text-main)}.box-header p{color:var(--text-muted)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:8px;color:var(--text-muted);font-size:.9rem}.form-control[readonly]{background:rgb(0 0 0 / .2);cursor:default;color:var(--text-muted)}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.stat-card{background:var(--bg-card);border:1px solid var(--border);padding:1.5rem;border-radius:12px;text-align:center}.stat-card h3{font-size:2rem;color:var(--primary);margin-bottom:5px}.stat-card p{color:var(--text-muted);font-size:.9rem}@media (max-width:768px){.profile-layout{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}.sitemap-wrapper{padding:4rem 0;background:var(--bg-dark);min-height:60vh}.sitemap-header{text-align:center;margin-bottom:3rem}.sitemap-header h1{font-size:2.5rem;margin-bottom:1rem;color:#fff}.sitemap-header p{color:var(--text-muted)}.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.sitemap-section{background:#1e293b;border:1px solid #334155;border-radius:12px;padding:2rem}.sitemap-section h2{font-size:1.25rem;color:#fff;margin-bottom:1.5rem;border-bottom:2px solid #3b82f6;display:inline-block;padding-bottom:5px}.sitemap-list{list-style:none;padding:0;margin:0}.sitemap-list li{margin-bottom:10px}.sitemap-list a{color:#94a3b8;text-decoration:none;transition:0.2s;display:flex;align-items:center;gap:8px}.sitemap-list a:hover{color:#3b82f6;padding-left:5px}.sitemap-list i{font-size:.8rem;color:#475569}