:root{--primary: #660000;--primary-dark: #4a0000;--primary-light: #f8eeee;--black: #111;--gray-700: #444;--gray-500: #777;--gray-300: #d9d9d9;--gray-200: #e9e9e9;--gray-100: #f6f6f6;--white: #fff;--radius: 16px}text{font-family:"yekanbakh"}*,*::before,*::after{box-sizing:border-box}body{background:#fff !important;overflow-x:clip}a{text-decoration:none}a,button{color:inherit}button{font-family:inherit;cursor:pointer;border:none;background:0 0}@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}@keyframes slide{from{transform:translateX(-50%)}to{transform:translateX(0)}}.masthead{border-bottom:3px solid #111;padding-top:26px}.mh-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid #e9e9e9;font-size:12px;color:#777}.mh-top .date{display:flex;align-items:center;gap:8px}.mh-top .date svg{width:14px;height:14px;stroke:#600;fill:none;stroke-width:2}.mh-live{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:#600}.mh-live i{width:7px;height:7px;border-radius:50%;background:#600;animation:1.4s infinite blink}.brand{display:flex;justify-content:center;align-items:center;gap:16px;padding:24px 0 18px;text-align:center;flex-wrap:wrap}.brand .mark{background:#600;display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;color:#fff;font-weight:900;font-size:26px;box-shadow:0 10px 26px rgba(102,0,0,.28)}.brand h1{font-size:34px;font-weight:900;letter-spacing:-1px;line-height:1.3}.brand h1 span{color:#600}.brand small{display:block;color:#777;font-size:12.5px;font-weight:500;letter-spacing:2px;word-break:break-all}.mh-nav{display:flex;justify-content:center;margin-top:15px;gap:6px;font-size:12.5px;font-weight:700;color:#777;flex-wrap:wrap}.mh-nav a:hover{color:#600}.nav{display:flex;justify-content:center;gap:4px;flex-wrap:wrap;border-top:1px solid #e9e9e9;padding:8px 0}.nav a{font-size:13px;font-weight:700;padding:8px 16px;border-radius:999px;color:#444;transition:.2s}.nav a:hover{background:#f6f6f6;color:#111}.nav a.on{background:#111;color:#fff}.ticker{background:#600;color:#fff;display:flex;align-items:center;gap:14px;height:44px;overflow:hidden}.ticker .lbl{background:#fff;color:#600;font-size:12px;font-weight:800;padding:0 16px;height:100%;display:flex;align-items:center;flex-shrink:0}.ticker .track{font-size:13px;white-space:nowrap;display:flex;gap:44px;animation:32s linear infinite slide}.ticker .track span::before{content:"◆";font-size:8px;margin-left:10px;opacity:.6}.container{max-width:none;padding-right:7vw;padding-left:7vw}.layout{display:grid;grid-template-columns:270px minmax(0, 1fr) 330px;gap:34px;align-items:start;padding:34px 0 60px}.layout>.sb-right,.layout>.sidebar{min-width:0;display:flex;flex-direction:column;gap:26px;position:sticky;top:20px;align-self:start;max-height:calc(100vh - 40px);overflow-y:auto;scrollbar-width:thin}.layout>.sb-right::-webkit-scrollbar,.layout>.sidebar::-webkit-scrollbar{width:4px}.layout>.sb-right::-webkit-scrollbar-thumb,.layout>.sidebar::-webkit-scrollbar-thumb{background:#d9d9d9;border-radius:4px}.layout>.sb-right{order:1}.layout>.main{order:2;min-width:0}.layout>.sidebar{order:3}.main,.p-info{min-width:0}.kicker{display:flex;align-items:center;gap:14px}.kicker b{font-size:13px;font-weight:900;letter-spacing:1px;color:#600;white-space:nowrap}.kicker b::before{content:"// "}.kicker small{font-size:12px;color:#777}.kicker i{flex:1;height:1px;background:#e9e9e9}.rel{display:flex;gap:11px;padding:10px 0;border-bottom:1px solid #f6f6f6;align-items:center}.rel:last-child{border-bottom:none}.rel .th{width:30px;height:30px;border-radius:4px;flex-shrink:0;background:linear-gradient(135deg, #111, #660000);display:flex;align-items:center;justify-content:center;color:hsla(0,0%,100%,.28);font-family:Consolas,monospace;font-weight:900;font-size:16px}.rel b{font-size:12.5px;font-weight:700;display:block;line-height:1.65;transition:.2s}.rel:hover b{color:#600}.rel small{font-size:11px;color:#777;display:flex;align-items:center;gap:5px}.rel small svg{width:11px;height:11px;stroke:#777;fill:none;stroke-width:2}.lead{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding-bottom:30px;border-bottom:2px solid #111;margin-bottom:6px}.lead .fig{position:relative;overflow:hidden;border-radius:4px;min-height:320px;background:linear-gradient(135deg, #141414 0, #3a0000 60%, #660000 100%)}.lead .fig::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 75% 25%, rgba(255, 255, 255, 0.08), transparent 45%),repeating-linear-gradient(45deg, transparent 0 22px, rgba(255, 255, 255, 0.03) 22px 23px)}.lead .fig .code{position:absolute;font-family:Consolas,monospace;inset:0;padding:26px;color:hsla(0,0%,100%,.28);font-size:12.5px;direction:ltr;text-align:left;line-height:1.75;overflow:hidden}.lead .fig .num{position:absolute;font-family:Consolas,monospace;bottom:-6px;left:14px;font-size:120px;font-weight:900;color:hsla(0,0%,100%,.08);line-height:1}.lead .body{display:flex;flex-direction:column;justify-content:center}.lead .tagline{font-size:12px;display:inline-flex;align-items:center;gap:8px;font-weight:800;color:#fff;background:#600;padding:5px 14px;border-radius:3px;align-self:flex-start;margin-bottom:14px}.lead h2{font-size:31px;font-weight:900;line-height:1.55;margin-bottom:14px;letter-spacing:-0.5px}.lead h2 a{background:linear-gradient(#660000, #660000) 0 100%/0 3px no-repeat;transition:.35s}.lead h2 a:hover{background-size:100% 3px}.lead p{font-size:14.5px;color:#444;text-align:justify}.byline{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px dashed #d9d9d9;font-size:12.5px;color:#777;flex-wrap:wrap}.byline .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg, #660000, #111);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px}.byline .sep{color:#d9d9d9}.byline b{color:#111;font-size:13px}.byline .dot{color:#d9d9d9}.byline .stat{display:inline-flex;align-items:center;gap:6px}.byline .stat svg{width:14px;height:14px;stroke:#600;fill:none;stroke-width:2}.story{display:grid;grid-template-columns:64px 1fr 190px;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid #e9e9e9;transition:.2s;content-visibility:auto;contain-intrinsic-size:0 190px}.story:hover{border-bottom-color:#600}.story .idx{font-family:Consolas,monospace;font-weight:900;color:#d9d9d9;font-size:34px;line-height:1;text-align:center;transition:.2s}.story:hover .idx{color:#600;transform:translateY(-3px)}.story .cat{display:flex;align-items:center;font-weight:800;margin-bottom:6px;font-size:11px;letter-spacing:.5px;gap:10px;flex-wrap:wrap;color:#600}.story .cat span{font-weight:600;letter-spacing:0;color:#777}.story h3{font-size:19px;line-height:1.6;font-weight:800;margin-bottom:6px;transition:.2s}.story:hover h3{color:#600}.story p{font-size:13.5px;color:#444;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.story .thumb{position:relative;overflow:hidden;aspect-ratio:8/4;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:.3s}.story .thumb::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg, transparent 0 14px, rgba(255, 255, 255, 0.04) 14px 15px)}.story .thumb .g{position:relative;font-family:Consolas,monospace;font-weight:900;font-size:40px;color:hsla(0,0%,100%,.18)}.story:hover .thumb{transform:scale(1.03)}.story .more{display:inline-flex;align-items:center;font-weight:800;gap:7px;font-size:12.5px;margin-top:10px;color:#600;opacity:0;transform:translateX(8px);transition:.25s}.story .more svg{width:15px;height:15px;stroke:#600;fill:none;stroke-width:2}.story:hover .more{opacity:1;transform:none}.g1{background:linear-gradient(135deg, #161616, #4a0000)}.g2{background:linear-gradient(135deg, #2a0000, #660000 85%)}.g3{background:linear-gradient(160deg, #111, #333 60%, #5c0000)}.g4{background:linear-gradient(135deg, #660000, #1a1a1a 80%)}.g5{background:linear-gradient(120deg, #222, #3d0000 55%, maroon)}.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:20px;border-top:none;border:none}.pagination a{width:42px;height:42px;border-radius:12px;border:1.5px solid #e9e9e9;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#444;transition:.2s}.pagination a svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2}.pagination a:hover{border-color:#111;color:#111}.pagination a.on{background:#600;border-color:#600;color:#fff;box-shadow:0 8px 20px rgba(102,0,0,.25)}.pagination .dots{color:#777;padding:0 4px}.side-box{border:none;border-radius:16px;padding:0;background:#fff;min-width:0}.side-box h4{font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:14px;display:flex;align-items:center;gap:8px}.side-box h4::before{content:"";width:4px;height:18px;background:#600;border-radius:2px}.side-box h4::after{content:"";flex:1;height:1px;background:#e9e9e9;margin-right:12px}.side-box h4 small{font-size:11px;font-weight:700;cursor:pointer;color:#600;letter-spacing:0}.side-box h4 small:hover{text-decoration:underline}.cats{display:flex;flex-direction:column;gap:6px}.cats a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:10px;font-size:13.5px;font-weight:600;color:#444;transition:.2s;background:#f6f6f6}.cats a:hover,.cats a.on{background:#f8eeee;color:#600}.cats a b{font-size:12px;font-family:monospace;background:#fff;padding:2px 8px;border-radius:6px;color:#111;border:1px solid #e9e9e9}.tags{display:flex;flex-wrap:wrap;gap:8px}.tags a{font-size:12.5px;padding:6px 12px;border-radius:999px;background:#f6f6f6;color:#444;font-weight:600;transition:.2s;border:1px solid rgba(0,0,0,0)}.tags a:hover{background:#f8eeee;color:#600;border-color:#e8cfcf}.product{display:flex;gap:12px;align-items:center;flex-direction:column}.product:last-child{border:none}.product:first-child{padding-top:0}.product:last-of-type{border-bottom:1px solid #e9e9e9}.product:hover .p-title{color:#600}.product .thumb{width:100%;min-height:70px;border-radius:8px;background:linear-gradient(135deg, #111, #660000);flex-shrink:0;position:relative;overflow:hidden;padding-right:10px;padding-left:10px;padding-top:10px;padding-bottom:10px;background:linear-gradient(135deg, #261112, #441317) !important;cursor:pointer}.product .info{min-width:0;flex:1}.product .info b{font-size:13px;display:block;line-height:1.5;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff;font-weight:400}.product .info b:hover{color:#d0ac51}.product .price-row{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;align-content:baseline}.product .meta{font-size:11.5px;color:#777;margin-top:3px;display:flex;align-items:center;gap:4px}.product .meta svg{width:12px;height:12px;fill:#f5a623;stroke:none}.p-num{font-size:12px;font-weight:900;color:#d9d9d9;font-family:monospace;width:18px;flex-shrink:0}.product:hover .p-num{color:#600}.p-thumb{width:58px;height:58px;border-radius:6px;flex-shrink:0;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}.p-thumb::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg, transparent 0 12px, rgba(255, 255, 255, 0.05) 12px 13px)}.p-thumb svg{width:24px;height:24px;stroke:hsla(0,0%,100%,.9);fill:none;stroke-width:1.6;position:relative}.p-thumb .off{position:absolute;top:4px;right:4px;background:#fff;color:#600;font-size:9px;font-weight:800;padding:0 5px;border-radius:3px;line-height:1.7}.p-info{flex:1;min-width:0}.p-title{font-size:12.5px;font-weight:700;line-height:1.55;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:.2s}.p-stars{display:flex;align-items:center;gap:4px;margin:2px 0}.p-stars svg{width:10px;height:10px;fill:#f5a623}.p-stars small{font-size:10px;color:#777}.p-price{font-size:13px;font-weight:900;color:#600}.p-price i{font-style:normal;font-size:10px;font-weight:500;color:#777}.side-cta{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:16px;padding:12px;font-size:13px;font-weight:800;background:#111;color:#fff;transition:.2s}.side-cta:hover{background:#600}.side-cta svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2}.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:13px;border-radius:12px;font-size:14px;font-weight:700;transition:.2s}.btn-primary{background:#600;color:#fff;box-shadow:0 8px 20px rgba(102,0,0,.25)}.btn-primary:hover{background:#4a0000;transform:translateY(-2px)}.btn-outline{background:#fff;color:#444;border:1.5px solid #e9e9e9;padding:11px;font-size:13px}.btn-outline:hover{border-color:#111;color:#111}.newsletter{position:relative;overflow:hidden;background:linear-gradient(135deg, #141414, #3a0000);color:#fff;border:none;padding:24px}.newsletter::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 10%, rgba(102, 0, 0, 0.7), transparent 55%)}.newsletter>*{position:relative}.newsletter h4{font-size:15px;font-weight:900;margin-bottom:8px;letter-spacing:0;color:#fff}.newsletter h4::before{background:#fff}.newsletter h4::after{display:none}.newsletter p{font-size:13px;opacity:.8;margin-bottom:14px}.newsletter input{width:100%;height:46px;padding:12px 14px;border-radius:10px;border:none;background:#1c1c1c;color:#fff;font-family:inherit;font-size:13.5px;outline:none;margin-bottom:10px;transition:.2s}.newsletter input:focus{border:1px solid #600}.newsletter button{width:100%;height:46px;background:#600;color:#fff;font-weight:800;font-size:13.5px;transition:.2s}.newsletter button:hover{background:#7d0000;transform:translateY(-2px)}.newsletter .btn-primary{box-shadow:none}.quote-box{position:relative;background:#f8eeee;border:1px solid #ecd8d8;padding:22px}.quote-box::before{content:"”";position:absolute;top:-6px;right:16px;font-size:80px;opacity:.18;font-family:Georgia,serif;line-height:1;color:#600}.quote-box p{font-size:14px;color:#4a0000;font-weight:700;line-height:2}.quote-box small{display:block;margin-top:10px;font-size:12px;color:#777}.pop{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid #f6f6f6;align-items:flex-start}.pop:last-child{border:none}.pop .rank{font-size:22px;font-weight:900;color:#d9d9d9;font-family:Consolas,monospace;line-height:1.3;transition:.2s}.pop b{font-size:12.5px;font-weight:700;display:block;line-height:1.65;transition:.2s}.pop small{font-size:11px;color:#777}.pop:hover .rank,.pop:hover b{color:#600}.popular-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid #e9e9e9;align-items:flex-start}.popular-post:last-child{border:none}.popular-post .num{width:28px;height:28px;border-radius:8px;background:#f8eeee;color:#600;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.popular-post b{font-size:13px;display:block;line-height:1.5;margin-bottom:2px}.popular-post b:hover{color:#600}.popular-post small{font-size:11.5px;color:#777}.site-footer{border-top:1px solid #e9e9e9;padding:28px 0;margin-top:20px;background:#f6f6f6}.site-footer .inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:#777}.site-footer a:hover{color:#600}.page-hero{margin-bottom:28px;padding:28px;border-radius:20px;background:linear-gradient(135deg, #141414 0%, #3a0000 55%, #660000 100%);color:#fff;position:relative;overflow:hidden}.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1), transparent 40%),repeating-linear-gradient(45deg, transparent 0 22px, rgba(255, 255, 255, 0.03) 22px 23px);pointer-events:none}.page-hero>*{position:relative}.page-hero .badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.page-hero h1,.page-hero h2{font-size:28px;font-weight:800;line-height:1.5;margin-bottom:8px}.page-hero p{font-size:14.5px;opacity:.85;max-width:640px}.page-hero h1,h2{font-size:28px;font-weight:800;line-height:1.5;margin-bottom:8px}.badge{font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;background:hsla(0,0%,100%,.12);color:#fff}.badge.solid{background:#fff;color:#600}.hero-stats{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px}.hero-stats span{display:inline-flex;align-items:center;gap:7px;font-size:13px;opacity:.9}.hero-stats svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}.featured{display:grid;grid-template-columns:1.15fr 1fr;gap:0;border:1px solid #e9e9e9;border-radius:16px;overflow:hidden;margin-bottom:28px;background:#fff;transition:border-color .2s,box-shadow .2s}.featured:hover{border-color:#600;box-shadow:0 12px 36px rgba(102,0,0,.08)}.featured-cover{position:relative;min-height:260px;background:linear-gradient(135deg, #1a1a1a 0%, #3a0000 50%, #660000 100%);display:flex;align-items:flex-end;padding:22px;overflow:hidden}.featured-cover::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg, transparent 0 16px, rgba(255, 255, 255, 0.04) 16px 17px)}.featured-cover .code{position:absolute;inset:0;padding:24px;color:hsla(0,0%,100%,.22);font-family:Consolas,monospace;font-size:12px;direction:ltr;text-align:left;line-height:1.7;overflow:hidden;pointer-events:none}.featured-cover .tag-row{position:relative;z-index:1;display:flex;gap:8px;flex-wrap:wrap}.featured-body{padding:26px 24px;display:flex;flex-direction:column;justify-content:center;min-width:0}.featured-body h2{font-size:22px;font-weight:800;line-height:1.55;margin-bottom:10px}.featured-body h2 a:hover{color:#600}.featured-body .excerpt{font-size:14px;color:#444;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:#777;margin-bottom:10px}.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#d9d9d9}.cat-c{font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px;background:#f8eeee;color:#600}.read-more{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:#600}.read-more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transform:rotate(180deg)}.read-more:hover{gap:12px}.course-hero{position:relative;overflow:hidden;background:linear-gradient(135deg, #141414 0, #3a0000 55%, #660000 100%);color:#fff;display:grid;grid-template-columns:minmax(0, 1.3fr) minmax(0, 1fr);margin-top:28px;width:100%;max-width:100%}.course-hero h2{font-size:27px;font-weight:900;line-height:1.6;margin-bottom:10px;word-wrap:break-word}.ch-body{padding:34px;position:relative;min-width:0;word-wrap:break-word;overflow-wrap:break-word}.ch-body>p{font-size:14px;color:hsla(0,0%,100%,.75);max-width:560px}.ch-badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.ch-badges span{font-size:11.5px;font-weight:800;padding:4px 12px;border-radius:999px;background:hsla(0,0%,100%,.12)}.ch-badges .red{background:#fff;color:#600}.ch-badges .live{display:inline-flex;align-items:center;gap:6px}.ch-badges .live i{width:7px;height:7px;border-radius:50%;background:#ffb3b3;animation:blink 1.4s infinite}.ch-stats{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.ch-stats span{font-size:12.5px;background:rgba(0,0,0,.32);border:1px solid hsla(0,0%,100%,.14);padding:6px 14px;border-radius:8px}.ch-cta{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.ch-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#fff;color:#600;font-weight:900;font-size:14px;padding:13px 26px;transition:.2s;border-radius:8px}.ch-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.35)}.ch-link{font-size:13px;font-weight:800;color:#fff;border-bottom:1px dashed hsla(0,0%,100%,.5);padding-bottom:2px;word-wrap:break-word}.ch-social{display:flex;align-items:center;gap:10px;margin-top:20px;font-size:12.5px;color:hsla(0,0%,100%,.7);flex-wrap:wrap}.ch-avatars{display:flex}.ch-avatars i{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg, #8a0000, #111);border:2px solid #600;margin-left:-8px;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:11px;font-weight:800;color:#fff}.ch-card{background:#fff;color:#111;padding:24px;padding-top:0;padding-left:0;position:relative;align-self:stretch;display:flex;flex-direction:column;min-width:0;overflow:hidden}.ch-card .r1{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:#777;margin-bottom:6px}.ch-card .off{background:#f8eeee;color:#600;font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:999px}.ch-card .price-line{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.ch-card .price-line s{font-size:14px;color:#777}.ch-card .price{font-size:30px;font-weight:900;line-height:1.3}.ch-card .price small{font-size:13px;font-weight:500;color:#777;margin-right:4px}.ch-card .full{width:100%;margin-top:14px;background:#600;color:#fff;box-shadow:0 10px 24px rgba(102,0,0,.3)}.ch-card .full:hover{background:#4a0000}.ch-cd{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:14px;padding:10px 12px;background:#f6f6f6;font-size:12.5px;color:#444;flex-wrap:wrap}.ch-cd .digits{display:flex;gap:4px;align-items:center;font-family:Consolas,monospace;font-size:15px;font-weight:700;direction:ltr}.ch-cd .digits b{background:#111;color:#fff;padding:2px 7px;min-width:30px;text-align:center;border-radius:5px}.ch-inc{list-style:none;margin-top:16px;padding-top:14px;border-top:1px dashed #d9d9d9;display:grid;grid-template-columns:1fr 1fr;gap:7px}.ch-inc li{font-size:12px;color:#444;display:flex;gap:7px;align-items:center}.ch-inc li::before{content:"✓";color:#600;font-weight:900}.ch-guarantee{margin-top:14px;font-size:11.5px;color:#777;text-align:center}.mid-strip{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;background:#111;color:#fff;padding:28px 30px;margin-top:34px;position:relative;overflow:hidden}.mid-strip::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 88% 20%, rgba(102, 0, 0, 0.85), transparent 55%)}.mid-strip>*{position:relative}.mid-strip small{font-size:11.5px;font-weight:900;letter-spacing:1.5px;color:#e9a5a5}.mid-strip h3{font-size:22px;font-weight:900;margin:4px 0 6px}.mid-strip p{font-size:13px;color:hsla(0,0%,100%,.72);max-width:560px}.mid-btn{display:inline-flex;align-items:center;gap:9px;background:#600;color:#fff;font-weight:900;font-size:14px;padding:15px 28px;box-shadow:0 12px 30px rgba(102,0,0,.5);transition:.2s;white-space:nowrap}.mid-btn:hover{background:#7d0000;transform:translateY(-3px)}.mid-btn svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:2}.side-course{border:1px solid #e9e9e9;border-radius:0;overflow:hidden;margin-bottom:10px;transition:.2s;min-width:0;width:100%}.side-course:last-child{margin-bottom:0}.side-course[open]{border-color:#111;box-shadow:4px 4px 0 #f8eeee}.side-course[open] .sc-chev{background:#600;border-color:#600;rotate:180deg}.side-course[open] .sc-chev svg{stroke:#fff}.side-course>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:11px;padding:12px;-webkit-user-select:none;-moz-user-select:none;user-select:none}.side-course>summary::-webkit-details-marker{display:none}.side-course>summary:hover{background:#fdfafa}.side-course .progress-mini{height:5px;background:#f6f6f6;border-radius:99px;overflow:hidden;margin:0 12px 2px}.side-course .progress-mini i{display:block;height:100%;background:linear-gradient(90deg, #660000, #a30000);border-radius:999px}.sc-thumb{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg, #141414, #660000);color:#fff;display:flex;align-items:center;justify-content:center;font-family:Consolas,monospace;font-weight:900;font-size:13px;flex-shrink:0;position:relative;overflow:hidden}.sc-thumb::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg, transparent 0 9px, rgba(255, 255, 255, 0.08) 9px 10px)}.sc-info{flex:1;min-width:0}.sc-info b{font-size:12.5px;font-weight:800;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sc-info small{font-size:10.5px;color:#600;font-weight:700;display:flex;align-items:center;gap:5px}.sc-info small i{width:6px;height:6px;border-radius:50%;background:#600;animation:blink 1.4s infinite;flex-shrink:0}.sc-chev{width:26px;height:26px;border-radius:8px;border:1.5px solid #e9e9e9;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:.25s}.sc-chev svg{width:13px;height:13px;stroke:#777;fill:none;stroke-width:2.5}.sc-list{border-top:1.5px dashed #e9e9e9}.sc-row{display:flex;align-items:center;gap:9px;padding:8px 12px;font-size:12px;transition:.15s;border-top:1px solid #f6f6f6;min-width:0}.sc-row:first-child{border-top:none}.sc-row b{flex:1;min-width:0;font-weight:600;line-height:1.55;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sc-row .dur{font-size:10px;color:#777;font-family:Consolas,monospace;flex-shrink:0}.sc-row.free{cursor:pointer}.sc-row.free:hover{background:#f8eeee}.sc-row.free .sc-ic{background:#111;border-color:#111}.sc-row.free .sc-ic svg{fill:#fff;stroke:none}.sc-ic{width:26px;height:26px;border-radius:8px;border:1.5px solid #e9e9e9;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sc-ic svg{width:12px;height:12px;stroke:#777;fill:none;stroke-width:2}.free-tag{font-size:9px;font-weight:900;background:#111;color:#fff;padding:1px 7px;border-radius:5px;flex-shrink:0}.sc-cta{display:flex;align-items:center;justify-content:center;gap:6px;font-size:11.5px;font-weight:800;color:#600;padding:10px;border-top:1.5px dashed #e9e9e9;transition:.2s;text-align:center}.sc-cta svg{width:13px;height:13px;stroke:#600;fill:none;stroke-width:2;flex-shrink:0}.sc-cta:hover{background:#f8eeee;letter-spacing:.3px}.ep-dl{width:26px;height:26px;border-radius:0;border:none;font-size:14px}.d-cu{position:relative;top:2px}.art-head{padding:34px 0 24px;border-bottom:1px solid #e9e9e9}h1{font-size:36px;font-weight:900;line-height:1.5;letter-spacing:-0.5px;margin-bottom:16px}.standfirst{font-size:16px;color:#444;line-height:2;border-right:3px solid #600;padding-right:16px}.art-hero{position:relative;border-radius:6px;overflow:hidden;aspect-ratio:21/9;background:linear-gradient(135deg, #141414 0%, #3a0000 60%, #660000 100%);margin:26px 0 8px}.art-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 75% 25%, rgba(255, 255, 255, 0.08), transparent 45%),repeating-linear-gradient(45deg, transparent 0 22px, rgba(255, 255, 255, 0.03) 22px 23px)}.art-hero .code{position:absolute;inset:0;padding:30px;color:hsla(0,0%,100%,.3);font-family:Consolas,monospace;font-size:13.5px;direction:ltr;text-align:left;line-height:1.85;overflow:hidden}.art-hero .big{position:absolute;bottom:-14px;left:20px;font-size:130px;font-weight:900;color:hsla(0,0%,100%,.07);font-family:Consolas,monospace;line-height:1}.caption{font-size:12px;color:#777;padding:10px 2px 0}.caption b{color:#600}.article-content{margin:0 auto;font-size:16px;color:#2b2b2b;line-height:1.8}.article-content h1,.article-content h2,.article-content h3,.article-content h4,.article-content h5,.article-content h6{color:#111;font-weight:900;margin-top:1.8em;margin-bottom:.8em;line-height:1.5}.article-content h1{font-size:32px}.article-content h2{font-size:23px;padding-top:18px;letter-spacing:-0.3px;scroll-margin-top:100px;display:flex;gap:12px;align-items:baseline}.article-content h2 .n{font-size:13px;font-weight:900;color:#600;font-family:Consolas,monospace;flex-shrink:0}.article-content h3{font-size:18px}.article-content h4{font-size:16px}.article-content p{margin-bottom:20px;text-align:justify}.article-content a{color:#600;font-weight:800;text-decoration:none;border-bottom:2px solid #f8eeee;transition:.2s}.article-content a:hover{border-bottom-color:#600}.article-content ul,.article-content ol{margin:0 22px 20px 0;color:#444}.article-content li{margin-bottom:8px}.article-content ul li::marker{color:#600}.article-content ol li::marker{color:#600;font-weight:800}.article-content strong{color:#111;font-weight:800}.article-content figure{margin:26px 0}.article-content img{max-width:100%;height:auto;border-radius:6px;display:block;margin:0 auto}.article-content figcaption{font-size:12px;color:#777;padding:10px 2px 0;text-align:center}.article-content figcaption b{color:#600}.article-content blockquote{margin:30px 0;padding:0 24px;border:none;text-align:center;position:relative}.article-content blockquote::before{content:"”";display:block;font-size:70px;line-height:.6;color:#600;font-family:Georgia,serif;opacity:.35}.article-content blockquote p{font-size:20px;font-weight:800;color:#4a0000;line-height:2;margin:10px 0 0;text-align:center}.article-content blockquote small{font-size:12.5px;color:#777}.article-content .codebox{background:#111;border-radius:6px;overflow:hidden;margin:0 0 24px;direction:ltr}.article-content .codebox .bar{display:flex;align-items:center;justify-content:space-between;padding:9px 16px;background:#1c1c1c;border-bottom:1px solid #2a2a2a}.article-content .codebox .bar span{font-family:Consolas,monospace;font-size:11.5px;color:#888}.article-content .codebox .bar button{font-size:11px;color:#bbb;display:flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid #333;transition:.2s;cursor:pointer}.article-content .codebox .bar button:hover{color:#fff;border-color:#666}.article-content .codebox .bar button svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2}.article-content .codebox pre{margin:0;padding:18px 20px;font-family:Consolas,monospace;font-size:13.5px;line-height:1.85;color:#e8e8e8;overflow-x:auto;text-align:left}.article-content .codebox .c{color:#6a9955}.article-content .codebox .k{color:#e8837a}.article-content .codebox .s{color:#e0b060}.article-content .codebox .f{color:#8fbaf3}.article-content pre{background:#111;border-radius:6px;padding:18px 20px;font-family:Consolas,monospace;font-size:13.5px;line-height:1.85;color:#e8e8e8;overflow-x:auto;text-align:left;direction:ltr;margin:0 0 24px}.article-content code{font-family:Consolas,monospace;background:#f6f6f6;color:#4a0000;padding:2px 6px;border-radius:4px;font-size:14px;direction:ltr;display:inline-block}.article-content pre code{background:rgba(0,0,0,0);color:inherit;padding:0;border-radius:0;display:block}.article-content .note{display:flex;gap:14px;border:1px solid #e9e9e9;border-right:4px solid #600;border-radius:6px;padding:16px 18px;margin:0 0 24px;font-size:13.5px;color:#444;background:#f6f6f6}.article-content .note i{width:34px;height:34px;background:#600;display:flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:4px}.article-content .note i svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:2}.article-content .note b{color:#111;display:block;margin-bottom:2px;font-size:14px}.article-content table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:13.5px;display:block;overflow-x:auto;white-space:nowrap}.article-content th{background:#111;color:#fff;padding:11px 14px;text-align:right;font-weight:700}.article-content td{padding:11px 14px;border-bottom:1px solid #e9e9e9;color:#444;text-align:right}.article-content td:first-child{font-weight:800;color:#600}.article-content tr:hover td{background:#f8eeee}.art-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin:40px 0 0;padding:20px 0;border-top:2px solid #111;border-bottom:1px solid #e9e9e9}.art-tags{display:flex;flex-wrap:wrap;gap:7px}.art-tags a{font-size:12px;font-weight:700;padding:5px 13px;border:1px solid #e9e9e9;transition:.2s}.art-tags a:hover{background:#600;border-color:#600;color:#fff}.share{display:flex;align-items:center;gap:8px}.share span{font-size:12.5px;color:#777}.share button{width:38px;height:38px;border:1px solid #e9e9e9;display:flex;align-items:center;justify-content:center;transition:.2s}.share button svg{width:16px;height:16px;stroke:#444;fill:none;stroke-width:2}.share button:hover{background:#600;border-color:#600}.share button:hover svg{stroke:#fff}.helpful{display:flex;align-items:center;justify-content:center;gap:14px;margin:26px 0;padding:22px;border:1px dashed #d9d9d9;flex-wrap:wrap}.helpful span{font-size:14px;font-weight:800}.helpful button{display:flex;align-items:center;gap:7px;padding:9px 20px;border:1.5px solid #e9e9e9;font-size:13px;font-weight:700;transition:.2s}.helpful button svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}.helpful button:hover,.helpful button.on{background:#600;border-color:#600;color:#fff}.pn{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-bottom:44px;border:1px solid #e9e9e9}.pn a{padding:18px 20px;transition:.2s}.pn a+a{border-right:1px solid #e9e9e9}.pn a:hover{background:#f8eeee}.pn a:hover b{color:#600}.pn small{font-size:11.5px;font-weight:800;color:#600;letter-spacing:.5px;display:block;margin-bottom:6px}.pn b{font-size:13.5px;line-height:1.7;display:block}.pn .next{text-align:left}.sec-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}.sec-head h2{font-size:19px;font-weight:900}.sec-head i{flex:1;height:1px;background:#e9e9e9}.sec-head small{font-size:12.5px;color:#777}.comment{padding:18px 0;border-bottom:1px solid #e9e9e9;display:flex;gap:14px}.comment.reply{margin-right:40px;padding-right:20px;border-right:2px solid #f8eeee;border-bottom-style:dashed}.comment .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg, #660000, #111);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:15px;flex-shrink:0}.comment .avatar.admin{background:#111}.comment p{font-size:13.5px;color:#444;margin-top:6px}.c-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}.c-head b{font-size:14px}.c-head b span{font-size:10.5px;color:#fff;background:#600;padding:1px 8px;margin-right:6px;font-weight:700}.c-head small{color:#777;font-size:12px}.c-actions{display:flex;gap:14px;margin-top:8px}.c-actions button{font-size:12px;color:#777;display:flex;align-items:center;gap:5px;transition:.2s}.c-actions button:hover{color:#600}.c-actions svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2}.comment-form{margin-top:22px;padding:24px;background:#f6f6f6;border-top:3px solid #111}.comment-form h4{font-size:15px;font-weight:900;margin-bottom:14px}.comment-form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}.comment-form input,.comment-form textarea{width:100%;border:1px solid #d9d9d9;padding:12px 14px;font-family:inherit;font-size:13.5px;outline:none;background:#fff;transition:.2s}.comment-form input:focus,.comment-form textarea:focus{border-color:#600;box-shadow:0 0 0 3px #f8eeee}.comment-form textarea{min-height:110px;resize:vertical}.toc ol{list-style:none;counter-reset:toc}.toc li{counter-increment:toc}.toc li:last-child a{border:none}.toc a{display:flex;flex-direction:row;gap:10px;align-items:center;font-size:13px;color:#444;padding:8px 0;border-bottom:1px solid #f6f6f6;transition:.2s}.toc a::before{font-family:Consolas,monospace;font-size:11px;font-weight:800;color:#600}.toc a:hover{color:#600;padding-right:4px}@media(max-width: 1180px){.container{padding-right:4vw;padding-left:4vw}.layout{grid-template-columns:minmax(0, 1fr) 300px;gap:24px}.layout>.sb-right{display:none}.layout>.main{order:1}.layout>.sidebar{order:2}}@media(max-width: 960px){.layout{grid-template-columns:1fr;gap:30px;padding:20px 0 40px}.layout>.main{order:1;width:100%}.layout>.sb-right{display:none}.layout>.sidebar{order:2;position:static;max-height:none;overflow:visible;width:100%}.sidebar{position:static;max-height:none;overflow:visible;width:100%}.featured{grid-template-columns:1fr}.featured-cover{min-height:200px}.container{padding-right:5px;padding-left:5px}.lead{grid-template-columns:1fr}.lead .fig{min-height:220px}.brand h1{font-size:24px}.brand small{font-size:13px !important}.course-hero{grid-template-columns:1fr;margin-top:20px}.course-hero h2{font-size:22px}.ch-body{padding:24px 20px}.ch-card{padding:0;border-top:1px solid rgba(0,0,0,.06)}h1{font-size:26px}}@media(max-width: 640px){.container{padding-right:12px;padding-left:12px}.story{grid-template-columns:34px 1fr;gap:14px}.story .thumb{display:none}.story h3{font-size:16.5px}.story .idx{font-size:20px}.lead h2{font-size:23px}.pagination{flex-wrap:wrap;gap:6px}.course-hero h2{font-size:19px;line-height:1.5}.ch-body{padding:20px 16px}.ch-card{padding:0}.ch-inc{grid-template-columns:1fr}.ch-cta{flex-direction:column;align-items:stretch;gap:10px;width:100%}.ch-btn{width:100%;text-align:center;padding:13px 16px;font-size:13px}.ch-link{text-align:center;display:block;font-size:12px;line-height:1.7}.ch-badges span{font-size:10.5px;padding:3px 9px}.ch-stats span{font-size:11.5px;padding:5px 10px}.mid-strip{padding:24px 18px}.mid-strip h3{font-size:18px}.page-hero{padding:22px}.page-hero h1,.page-hero h2{font-size:22px}.brand{gap:10px;padding:16px 0 12px}.brand h1{font-size:20px;line-height:1.4}.brand small{font-size:12px !important;letter-spacing:1px}.mh-top{flex-direction:column;align-items:flex-start;gap:8px;font-size:11px}.side-course>summary{padding:10px;gap:9px}.sc-thumb{width:38px;height:38px;font-size:12px}.sc-info b{font-size:11.5px}.sc-row{padding:8px 10px;gap:7px}.sc-row b{font-size:11.5px}.art-hero{aspect-ratio:16/11}.art-hero .code{font-size:11px;padding:16px}.art-hero .big{font-size:70px}.pn{grid-template-columns:1fr}.pn a+a{border-right:none;border-top:1px solid #e9e9e9}.comment.reply{margin-right:16px;padding-right:12px}.comment-form .row{grid-template-columns:1fr}.article-content{font-size:15px}.article-content h1{font-size:26px}.article-content h2{font-size:19px}.article-content blockquote p{font-size:18px}.article-content table{display:block;white-space:nowrap}}@media(max-width: 600px){.toolbar{align-items:stretch}.search-box{max-width:none}.filters{width:100%}.filters button{flex:1;padding:7px 8px;font-size:12px}}@media(max-width: 400px){.ch-body{padding:18px 14px}.course-hero h2{font-size:17px}.ch-btn{font-size:12.5px;padding:12px 14px}.brand h1{font-size:18px}}/*# sourceMappingURL=blog.min.css.map */