.kc-article{max-width:960px;margin:0 auto;padding:24px 16px 64px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.65;color:#1b1b1b}.kc-article p,.kc-article li{font-size:1.05rem}.kc-article h1{font-size:clamp(1.8rem,3.5vw,2rem);line-height:1.2;margin:14px 0 10px;font-weight:600}.kc-article h2{font-size:clamp(1.3rem,2.2vw,1.5rem);margin:34px 0 12px;line-height:1.3;font-weight:600}.kc-article h3{font-size:1.2rem;margin:22px 0 10px;line-height:1.3;font-weight:600}.kc-article a{color:#1659df;text-decoration:none}.kc-article strong{font-weight:600}.kc-article img{max-width:100%;height:auto}.kc-lead{font-size:1.12rem;margin-top:10px;color:#333}.kc-breadcrumb{font-size:.95rem;margin-bottom:10px;color:#555}.kc-breadcrumb a{color:#555}.kc-breadcrumb a:hover{color:#1659df}.kc-hero-image{margin:22px 0 10px}.kc-hero-image img{width:100%;height:auto;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.06);background:#f6f6f6}.kc-hero-image figcaption{font-size:.95rem;color:#666;margin-top:8px}.kc-toc{background:#f7f9ff;border:1px solid rgba(22,89,223,.12);border-radius:16px;padding:16px 18px;margin-top:26px}.kc-toc h2{margin:0 0 10px;font-size:1.2rem}.kc-toc ol{padding-left:18px;margin:0}.kc-toc li{margin:6px 0}.kc-article ul,.kc-article ol{padding-left:22px}.kc-article li{margin:6px 0}.kc-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:16px}.kc-card{border:1px solid rgba(0,0,0,.1);border-radius:16px;padding:16px;background:#fff;box-shadow:0 8px 18px rgba(0,0,0,.04)}.kc-card h3{margin-top:0}.kc-cta{border-radius:18px;padding:18px;margin:26px 0;border:1px solid rgba(0,0,0,.1);background:#fff;box-shadow:0 10px 25px rgba(0,0,0,.05)}.kc-cta h2{margin-top:0}.kc-cta-hero{margin-top:18px;background:linear-gradient(180deg,#f4f8ff 0%,#fff 100%);border:1px solid rgba(22,89,223,.18)}.kc-cta-mid{background:#f7fbff;border:1px solid rgba(22,89,223,.14)}.kc-cta-bottom{background:#f4fbf6;border:1px solid rgba(34,139,34,.18)}.kc-cta-title{margin:0 0 8px;font-size:1.35rem}.kc-cta-text{margin:0 0 14px;color:#333}.kc-cta-buttons{display:flex;flex-wrap:wrap;gap:10px;margin:0}.kc-btn{display:inline-block;padding:10px 14px;border-radius:14px;font-weight:600;font-size:1rem;border:1px solid transparent;transition:transform .05s ease,box-shadow .2s ease}.kc-btn:focus{outline:3px solid rgba(22,89,223,.35);outline-offset:2px}.kc-btn-primary{background:#1659df;color:#fff!important;box-shadow:0 10px 18px rgba(22,89,223,.25)}.kc-btn-primary:hover{box-shadow:0 14px 26px rgba(22,89,223,.32);transform:translateY(-1px);text-decoration:none!important}.kc-btn-secondary{background:#fff;color:#1659df!important;border:1px solid rgba(22,89,223,.3)}.kc-btn-secondary:hover{background:rgba(22,89,223,.06);transform:translateY(-1px);text-decoration:none!important}.kc-article details{border:1px solid rgba(0,0,0,.1);border-radius:14px;padding:12px 14px;margin:12px 0;background:#fff}.kc-article summary{cursor:pointer;font-size:1.05rem;list-style:none;position:relative}.kc-article summary::-webkit-details-marker{display:none}.kc-article summary:after{content:" +";font-weight:700;color:#1659df;position:absolute;top:0;right:0}.kc-article details[open] summary:after{content:" −"}.kc-article details p{margin:10px 0 0;color:#333}.kc-related{margin-top:34px;border-top:1px solid rgba(0,0,0,.08);padding-top:18px}.kc-related h2{margin-top:10px}.kc-related ul{padding-left:18px}@media(max-width:600px){.kc-cta-buttons{flex-direction:column}.kc-btn{text-align:center}}html{scroll-behavior:smooth}.kc-article section{scroll-margin-top:90px}.kc-note{background:#f8fafc;border-left:4px solid #1a73e8;padding:12px 16px;border-radius:8px;margin-top:12px}.kc-faq{margin-top:48px;padding-top:24px;border-top:1px solid #e2e8f0}.kc-faq-intro{color:#475569;margin-bottom:16px}.kc-faq-list{display:grid}.kc-faq-item{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:14px 16px;box-shadow:0 1px 2px rgba(0,0,0,.04)}.kc-faq-item summary{cursor:pointer;font-weight:600;color:#0f172a;list-style:none;outline:0;display:flex;justify-content:space-between;align-items:center}.kc-faq-item summary::-webkit-details-marker{display:none}.kc-faq-item summary::after{content:"＋";font-size:18px;font-weight:700;color:#1a73e8;margin-left:12px}.kc-faq-item[open] summary::after{content:"−"}.kc-faq-answer{margin-top:10px;color:#334155;line-height:1.6}@media(min-width:992px){.kc-layout{display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:start;max-width:1200px;margin:0 auto;padding:0 20px}.kc-toc{display:none}.kc-toc-sidebar{position:sticky;top:96px;max-height:calc(100vh - 120px);overflow-y:auto;padding:12px 8px 12px 0}.kc-toc-sidebar-inner{border-left:3px solid rgba(0,0,0,.08);padding-left:16px}.kc-toc-title{font-size:15px;font-weight:700;margin:0 0 12px;text-transform:uppercase;letter-spacing:.04em;opacity:.85}.kc-toc-links a{display:block;font-size:14px;line-height:1.3;padding:7px 10px;margin:3px 0;border-radius:10px;text-decoration:none;color:inherit;opacity:.85;transition:background .15s ease,opacity .15s ease}.kc-toc-links a:hover{background:rgba(26,115,232,.08);opacity:1}.kc-toc-links a.is-active{background:rgba(26,115,232,.14);font-weight:600;opacity:1}.kc-article{max-width:100%}}@media(max-width:991px){.kc-toc-sidebar{display:none}}.kc-heading{position:relative;scroll-margin-top:90px}.kc-anchor{margin-left:8px;font-size:.85em;opacity:.35;text-decoration:none;cursor:pointer;user-select:none;transition:opacity .2s ease}.kc-heading:hover .kc-anchor{opacity:.75}.kc-anchor.is-copied{opacity:1;font-weight:bold}.kc-back-to-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:999px;border:1px solid rgba(0,0,0,.12);background:#111827;color:#fff;font-size:20px;cursor:pointer;display:none;z-index:9999;box-shadow:0 10px 30px rgba(0,0,0,.18)}.kc-back-to-top:hover{background:#0b1020}.kc-layout{display:grid;grid-template-columns:260px minmax(0,1fr) 240px;gap:28px;align-items:start;max-width:1440px;margin:15px auto 0 auto;padding:0 18px}@media(max-width:1100px){.kc-layout{grid-template-columns:260px minmax(0,1fr)}.kc-toc-sidebar{display:none}}@media(max-width:900px){.kc-layout{grid-template-columns:1fr;gap:0}}.kc-leftnav{position:sticky;top:96px;align-self:start;height:calc(100vh - 150px);width:260px}.kc-leftnav-inner{height:100%;overflow-y:auto;padding-right:6px}.kc-leftnav-inner::-webkit-scrollbar{width:8px}.kc-leftnav-inner::-webkit-scrollbar-thumb{background:rgba(0,0,0,.15);border-radius:10px}.kc-leftnav-inner::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.25)}.kc-leftnav-title{font-weight:700;font-size:15px;padding:8px 10px 10px;border-bottom:1px solid rgba(0,0,0,.07);margin-bottom:10px}.kc-leftnav-group{padding:10px 10px 6px}.kc-leftnav-group-title{font-weight:700;font-size:13px;margin:0 0 6px;opacity:.82}.kc-leftnav-list{list-style:none;padding:0;margin:0}.kc-leftnav-list li{margin:0;padding:0}.kc-leftnav-list a{display:block;padding:7px 8px;border-radius:10px;text-decoration:none;color:#1f2937;font-size:14px;line-height:1.3}.kc-leftnav-list a:hover{background:rgba(0,0,0,.04);text-decoration:none}.kc-leftnav-list a.is-active{background:rgba(17,24,39,.08);border:1px solid rgba(17,24,39,.12);font-weight:700}.kc-leftnav-footer{margin-top:10px;border-top:1px solid rgba(0,0,0,.07);padding:10px;font-size:13px}.kc-leftnav-home{text-decoration:none;font-weight:600}.kc-leftnav a.is-active{font-weight:700;color:#0b3d91;background:rgba(11,61,145,.08);border-left:3px solid #0b3d91;padding-left:10px;border-radius:8px}.kc-leftnav-group.has-active .kc-leftnav-group-title{color:#0b3d91;font-weight:800}.kc-leftnav-sep{height:1px;background:rgba(0,0,0,.08);margin:10px 0;list-style:none}.kc-leftnav a:focus-visible{outline:2px solid rgba(11,61,145,.35);outline-offset:2px;border-radius:8px}.kc-leftnav-toggle{display:none;width:100%;border:1px solid rgba(0,0,0,.12);background:#fff;border-radius:12px;padding:10px 12px;font-size:14px;font-weight:700;cursor:pointer;margin-bottom:10px}.kc-leftnav-toggle-icon{float:right;opacity:.75}.kc-leftnav-panel{display:block}@media(max-width:900px){.kc-leftnav{position:relative;top:0;height:unset;width:unset;margin-top:15px}.kc-leftnav-inner{height:unset;overflow-y:unset;padding-right:unset}.kc-leftnav-toggle{display:block}.kc-leftnav-panel{display:none}.kc-leftnav-panel.is-open{display:block}}.kc-table-wrap{overflow-x:auto;margin:16px 0 26px}.kc-table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.45}.kc-table th{text-align:left;font-weight:600;padding:12px 12px;border-bottom:1px solid rgba(0,0,0,.12);background:rgba(0,0,0,.03)}.kc-table td{padding:12px 12px;border-bottom:1px solid rgba(0,0,0,.08);vertical-align:top}.kc-table li{font-size:14px}.kc-card-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:18px 0 28px}.kc-card{display:block;background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:16px;text-decoration:none;box-shadow:0 4px 14px rgba(0,0,0,.06);transition:transform .15s ease,box-shadow .15s ease}.kc-card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(0,0,0,.1)}.kc-card-title{font-weight:600;font-size:16px;margin-bottom:6px;color:#111}.kc-card-desc{font-size:14px;line-height:1.45;color:rgba(0,0,0,.72)}.kc-link-list{margin:12px 0 24px;padding-left:18px}.kc-link-list li{margin:6px 0}.kc-inline{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:.95em;background:#f1f5f9;padding:2px 6px;border-radius:6px;white-space:normal;overflow-wrap:anywhere;word-break:break-word;border:1px solid rgba(0,0,0,.06)}pre.kc-code{margin:0;padding:14px 14px;border-radius:12px;background:#f6f8fa;color:#0f172a;overflow-x:auto;font-size:13px;line-height:1.6;border:1px solid rgba(0,0,0,.08)}pre.kc-code code{color:inherit;background:transparent;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;white-space:pre}.kc-code-tabs{margin:14px 0 18px;border:1px solid rgba(0,0,0,.1);border-radius:14px;overflow:hidden;background:#fff}.kc-tablist{display:flex;flex-wrap:wrap;gap:8px;padding:10px;border-bottom:1px solid rgba(0,0,0,.08);background:#fff}.kc-tab{appearance:none;border:1px solid rgba(0,0,0,.1);background:#f8fafc;color:#0f172a;padding:6px 10px;border-radius:999px;cursor:pointer;font:inherit;font-size:13px;line-height:1.2}.kc-tab:hover{background:#eef2ff;border-color:rgba(22,89,223,.25)}.kc-tab.is-active{background:rgba(22,89,223,.1);border-color:rgba(22,89,223,.35);color:#0b3d91;font-weight:700}.kc-tabpanels{padding:10px;background:#fff}.kc-tabpanels pre.kc-code{border-radius:12px}.kc-tablist{overflow-x:auto;-webkit-overflow-scrolling:touch}.kc-tab:focus-visible{outline:3px solid rgba(22,89,223,.35);outline-offset:2px}.kc-code-wrap{position:relative}.kc-code-wrap pre.kc-code{padding-top:42px}.kc-copy-btn{position:absolute;top:10px;right:10px;display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;padding:8px 12px;border-radius:999px;border:1px solid rgb(129,129,129,.28);background:rgba(255,255,255,.18);color:#0f172a;cursor:pointer}.kc-copy-btn:hover{background:#eef2ff;border-color:rgb(129,129,129,.4)}.kc-copy-btn:active{transform:translateY(0)}.kc-copy-btn.is-copied{background:rgba(34,197,94,.35);border-color:rgba(34,197,94,.7)}.kc-copy-btn:focus-visible{outline:3px solid rgba(22,89,223,.45);outline-offset:2px}