.sk-site .brand{display:flex;align-items:center;gap:.6rem}.sk-site .brand img{height:30px;width:auto;display:block}.sk-site .brand b{font-family:var(--fd);font-weight:800;font-size:1.3rem;letter-spacing:-.01em}.sk-site .brand .ctx{font-family:var(--fm);font-size:.74rem;color:var(--faint);border-left:1px solid var(--border);padding-left:.7rem;margin-left:.2rem}.sk-site .nav-links a{background:none;border:none;font:inherit}.sk-site .nav-links a.active{color:var(--cyan)}.sk-site .hero{position:relative;overflow:hidden;padding-block:clamp(56px,8vw,92px) clamp(40px,5vw,60px)}.sk-site .hero:before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(720px 380px at 50% -10%,rgba(41,182,246,.18),transparent 70%),radial-gradient(520px 360px at 12% 20%,rgba(21,101,192,.12),transparent 72%)}.sk-site .hero-in{position:relative;z-index:1;text-align:center;max-width:720px;margin-inline:auto}.sk-site .hero h1{font-family:var(--fd);font-weight:800;font-size:clamp(2.1rem,4.4vw,3.3rem);line-height:1.06;letter-spacing:-.025em;margin:.9rem 0 .7rem}.sk-site .hero .sub{color:var(--dim);font-size:1.05rem}.sk-site .search{position:relative;max-width:600px;margin:30px auto 0}.sk-site .search-box{display:flex;align-items:center;gap:.7rem;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:.9rem 1.1rem;transition:border-color .2s,box-shadow .2s}.sk-site .search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(41,182,246,.12)}.sk-site .search-box svg{color:var(--faint);flex:none}.sk-site .search-box input{flex:1;min-width:0;background:none;border:none;outline:none;color:var(--text);font-family:var(--fb);font-size:1rem}.sk-site .search-box input::placeholder{color:var(--faint)}.sk-site .kbd{font-family:var(--fm);font-size:.7rem;color:var(--faint);border:1px solid var(--border);border-radius:6px;padding:.2em .5em;white-space:nowrap}.sk-site .results{position:absolute;left:0;right:0;top:calc(100% + 8px);background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:0 30px 70px -28px rgba(0,0,0,.85);overflow:hidden;text-align:left;z-index:20}.sk-site .res-item{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 1.1rem;cursor:pointer;border:none;width:100%;background:none;text-align:left;border-bottom:1px solid var(--hair)}.sk-site .res-item:last-child{border-bottom:none}.sk-site .res-item.sel,.sk-site .res-item:hover{background:var(--surface-2)}.sk-site .res-item .rt{font-size:.94rem;font-weight:500;color:var(--text)}.sk-site .res-item .rt mark{background:rgba(41,182,246,.22);color:var(--text);border-radius:3px;padding:0 1px}.sk-site .res-item .rc{font-family:var(--fm);font-size:.7rem;color:var(--faint);white-space:nowrap}.sk-site .res-empty{padding:1.1rem;color:var(--faint);font-size:.92rem;text-align:center}.sk-site .sec{padding-block:clamp(40px,6vw,72px)}.sk-site .sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:26px;flex-wrap:wrap}.sk-site .sec-h h2{font-family:var(--fd);font-weight:800;font-size:clamp(1.4rem,2.4vw,1.9rem);letter-spacing:-.02em}.sk-site .sec-h .count{font-family:var(--fm);font-size:.8rem;color:var(--faint)}.sk-site .cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.sk-site .cat{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px;cursor:pointer;text-align:left;width:100%;min-width:0;font:inherit;color:inherit;transition:transform .2s,border-color .2s;display:flex;flex-direction:column;gap:.5rem}.sk-site .cat:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--cyan) 42%,var(--border))}.sk-site .cat .ic{width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(41,182,246,.13);color:var(--cyan);margin-bottom:6px}.sk-site .cat .ic svg{width:20px;height:20px}.sk-site .cat h3{font-family:var(--fd);font-weight:700;font-size:1.02rem;display:flex;align-items:center;gap:.5rem;color:var(--text)}.sk-site .cat .n{font-family:var(--fm);font-size:.72rem;color:var(--faint)}.sk-site .cat ul{list-style:none;margin-top:.4rem;display:flex;flex-direction:column;gap:.3rem}.sk-site .cat ul li{font-size:.86rem;color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sk-site .cat ul li:before{content:"›";color:var(--faint);margin-right:.4rem}.sk-site .pop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.sk-site .pop{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;cursor:pointer;text-align:left;width:100%;min-width:0;font:inherit;color:inherit;transition:transform .2s,border-color .2s;display:flex;flex-direction:column;gap:.5rem;min-height:120px}.sk-site .pop:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--cyan) 42%,var(--border))}.sk-site .pop .tagcat{font-family:var(--fm);font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan)}.sk-site .pop h3{font-family:var(--fd);font-weight:700;font-size:1.02rem;line-height:1.25;color:var(--text)}.sk-site .pop .go{margin-top:auto;font-size:.85rem;color:var(--faint);display:flex;align-items:center;gap:.4rem}.sk-site .pop:hover .go{color:var(--cyan)}.sk-site .contact{position:relative;border:1px solid var(--border);border-radius:22px;overflow:hidden;background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 14%,var(--surface)),color-mix(in srgb,var(--cyan) 10%,var(--surface)));padding:clamp(34px,5vw,52px);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}.sk-site .contact h2{font-family:var(--fd);font-weight:800;font-size:clamp(1.4rem,2.4vw,1.9rem);letter-spacing:-.02em;margin-bottom:.4rem}.sk-site .contact p{color:var(--dim);font-size:1rem;max-width:46ch}.sk-site .crumb{display:flex;align-items:center;gap:.5rem;font-size:.86rem;color:var(--faint);padding-top:28px;flex-wrap:wrap}.sk-site .crumb a{cursor:pointer}.sk-site .crumb a:hover{color:var(--cyan)}.sk-site .crumb .sep{opacity:.5}.sk-site .art-grid{display:grid;grid-template-columns:230px minmax(0,1fr) 200px;gap:clamp(28px,4vw,56px);align-items:start;padding-block:30px 80px}.sk-site .side-nav{position:sticky;top:96px}.sk-site .side-nav h4{font-family:var(--fm);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--faint);margin-bottom:.9rem}.sk-site .side-nav a{display:block;font-size:.9rem;color:var(--dim);padding:.4rem 0 .4rem .8rem;margin-left:-.8rem;cursor:pointer;text-align:left;background:none;border:none;border-left:2px solid transparent;width:100%;font-family:var(--fb)}.sk-site .side-nav a:hover{color:var(--text)}.sk-site .side-nav a.active{color:var(--cyan);border-left-color:var(--cyan)}.sk-site .article{min-width:0}.sk-site .article .tagcat{font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--cyan)}.sk-site .article h1{font-family:var(--fd);font-weight:800;font-size:clamp(1.8rem,3.2vw,2.5rem);line-height:1.1;letter-spacing:-.02em;margin:.7rem 0 .5rem}.sk-site .article .meta{font-family:var(--fm);font-size:.76rem;color:var(--faint);margin-bottom:1.8rem}.sk-site .article p{color:var(--dim);margin-bottom:1.1rem}.sk-site .article h2{font-size:1.35rem;margin:2.2rem 0 .9rem;letter-spacing:-.01em;scroll-margin-top:96px}.sk-site .article h2,.sk-site .article h3{font-family:var(--fd);font-weight:700;color:var(--text)}.sk-site .article h3{font-size:1.1rem;margin:1.6rem 0 .7rem}.sk-site .article ol,.sk-site .article ul{color:var(--dim);margin:0 0 1.2rem 1.2rem;display:flex;flex-direction:column;gap:.55rem}.sk-site .article ul{list-style:disc}.sk-site .article ol{list-style:decimal}.sk-site .article li{padding-left:.2rem}.sk-site .article code{font-family:var(--fm);font-size:.86em;background:var(--surface-2);border:1px solid var(--hair);border-radius:6px;padding:.12em .45em;color:var(--cyan)}.sk-site .article b,.sk-site .article strong{color:var(--text);font-weight:600}.sk-site .article a:not(.btn){color:var(--cyan);text-decoration:underline;text-underline-offset:2px}.sk-site .callout{display:flex;gap:.8rem;padding:1rem 1.2rem;border-radius:12px;margin:1.4rem 0;border:1px solid var(--border);background:var(--surface)}.sk-site .callout .ci{flex:none;width:22px;height:22px;margin-top:1px}.sk-site .callout .cbody{min-width:0;display:flex;flex-direction:column;gap:.5rem}.sk-site .callout .cbody>*{margin:0}.sk-site .callout p{margin:0;color:var(--text);font-size:.95rem}.sk-site .callout .clabel{font-family:var(--fd);font-weight:700;color:var(--text)}.sk-site .callout ol,.sk-site .callout ul{color:var(--text);margin:0 0 0 1.2rem;display:flex;flex-direction:column;gap:.4rem;font-size:.95rem}.sk-site .callout ul{list-style:disc}.sk-site .callout ol{list-style:decimal}.sk-site .callout code{font-family:var(--fm);font-size:.86em;background:var(--surface-2);border:1px solid var(--hair);border-radius:6px;padding:.12em .45em;color:var(--cyan)}.sk-site .callout.tip{border-color:color-mix(in srgb,var(--cyan) 35%,var(--border));background:color-mix(in srgb,var(--cyan) 6%,var(--surface))}.sk-site .callout.tip .ci{color:var(--cyan)}.sk-site .callout.ok{border-color:color-mix(in srgb,var(--green) 35%,var(--border));background:color-mix(in srgb,var(--green) 6%,var(--surface))}.sk-site .callout.ok .ci{color:var(--green)}.sk-site .callout.warn{border-color:color-mix(in srgb,var(--amber) 35%,var(--border));background:color-mix(in srgb,var(--amber) 6%,var(--surface))}.sk-site .callout.warn .ci{color:var(--amber)}.sk-site .callout.danger{border-color:color-mix(in srgb,var(--red) 35%,var(--border));background:color-mix(in srgb,var(--red) 6%,var(--surface))}.sk-site .callout.danger .ci{color:var(--red)}.sk-site .feedback{margin-top:2.6rem;padding:22px;border:1px solid var(--border);border-radius:14px;background:var(--surface);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.sk-site .feedback span{font-family:var(--fd);font-weight:600}.sk-site .fb-btns{display:flex;gap:.6rem}.sk-site .fb-btns button{display:inline-flex;align-items:center;gap:.4rem;background:var(--surface-2);border:1px solid var(--border);color:var(--dim);border-radius:10px;padding:.5em 1em;cursor:pointer;font-family:var(--fb);font-size:.9rem;transition:.2s}.sk-site .fb-btns button:hover{border-color:var(--cyan);color:var(--cyan)}.sk-site .fb-done{font-family:var(--fb);font-size:.92rem;color:var(--green)}.sk-site .toc{position:sticky;top:96px}.sk-site .toc h4{font-family:var(--fm);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--faint);margin-bottom:.9rem}.sk-site .toc a{display:block;font-size:.84rem;color:var(--dim);padding:.35rem 0;cursor:pointer}.sk-site .toc a:hover{color:var(--text)}.sk-site .toc a.active{color:var(--cyan)}.sk-site .related{border-top:1px solid var(--hair);padding-top:32px;margin-top:36px}.sk-site .related h3{font-family:var(--fd);font-weight:700;font-size:1.1rem;margin-bottom:16px}.sk-site .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.sk-site footer.ft{border-top:1px solid var(--hair);padding-block:46px 34px}.sk-site .ft-in{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.sk-site .ft-links{display:flex;gap:1.4rem;font-size:.9rem;color:var(--dim)}.sk-site .ft-links a:hover{color:var(--cyan)}.sk-site .ft-cp{font-family:var(--fm);font-size:.8rem;color:var(--faint)}.sk-site .sk-modal-back{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px}.sk-site .sk-modal{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:0 40px 90px -30px rgba(0,0,0,.85);width:100%;max-width:520px;max-height:calc(100svh - 40px);overflow:auto;padding:clamp(24px,4vw,34px);position:relative}.sk-site .sk-modal h2{font-family:var(--fd);font-weight:800;font-size:1.4rem;letter-spacing:-.02em;margin-bottom:.4rem}.sk-site .sk-modal .lead{color:var(--dim);font-size:.95rem;margin-bottom:1.4rem}.sk-site .sk-modal-close{position:absolute;top:16px;right:16px;width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:9px;border:1px solid var(--border);background:var(--surface-2);color:var(--dim);cursor:pointer}.sk-site .sk-modal-close:hover{color:var(--text);border-color:var(--cyan)}.sk-site .sk-field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}.sk-site .sk-field label{font-size:.84rem;font-weight:600;color:var(--text)}.sk-site .sk-input,.sk-site .sk-select,.sk-site .sk-textarea{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:.7em .9em;color:var(--text);font-family:var(--fb);font-size:.95rem;outline:none;transition:border-color .2s,box-shadow .2s;width:100%}.sk-site .sk-input:focus,.sk-site .sk-select:focus,.sk-site .sk-textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(41,182,246,.12)}.sk-site .sk-input::placeholder,.sk-site .sk-textarea::placeholder{color:var(--faint)}.sk-site .sk-textarea{resize:vertical;min-height:110px}.sk-site .sk-form-error{color:var(--red);font-size:.85rem;margin-bottom:.8rem}.sk-site .sk-form-ok{color:var(--green);font-size:.95rem;font-family:var(--fd);font-weight:600}@media (max-width:1000px){.sk-site .cat-grid{grid-template-columns:repeat(3,1fr)}.sk-site .art-grid{grid-template-columns:1fr;gap:24px}.sk-site .side-nav,.sk-site .toc{position:static}.sk-site .toc{order:-1;border:1px solid var(--border);border-radius:12px;padding:16px;background:var(--surface)}.sk-site .side-nav{display:none}}@media (max-width:820px){.sk-site .brand .ctx,.sk-site .nav-links{display:none}.sk-site .pop-grid,.sk-site .rel-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.sk-site .cat-grid,.sk-site .pop-grid,.sk-site .rel-grid{grid-template-columns:1fr}.sk-site .nav-login{display:none}.sk-site .contact{flex-direction:column;align-items:flex-start;text-align:left}.sk-site .kbd{display:none}}