.help-shell{--primary: #137FEC;--primary-light: #EBF4FD;--primary-muted: #D0E8FB;--bg: #F6F7F8;--surface: #FFFFFF;--text: #111418;--text-secondary: #617589;--border: #E5E7EB;--sidebar-w: 264px;--header-h: 56px;--toc-w: 220px;font-family:var(--site-font-family, "Manrope", system-ui, -apple-system, BlinkMacSystemFont, sans-serif);color:var(--text);background:var(--bg);min-height:100vh;-webkit-font-smoothing:antialiased;line-height:1.6}.help-shell *,.help-shell *:before,.help-shell *:after{box-sizing:border-box}.help-shell html{scroll-behavior:smooth}.help-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:16px;z-index:100}.help-header-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;min-width:calc(var(--sidebar-w) - 20px)}.help-logo-mark{width:28px;height:28px;background:var(--primary);border-radius:7px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:800;letter-spacing:-.5px}.help-logo-text{font-size:14px;font-weight:700;color:var(--text);line-height:1.2}.help-logo-sub{font-size:11px;font-weight:500;color:var(--text-secondary)}.help-header-search{flex:1;max-width:460px;position:relative}.help-header-search input{width:100%;height:34px;padding:0 12px 0 36px;background:var(--bg);border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:13px;color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s}.help-header-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #137fec1f;background:var(--surface)}.help-header-search input::-moz-placeholder{color:var(--text-secondary)}.help-header-search input::placeholder{color:var(--text-secondary)}.help-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none}.help-header-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}.help-lang-btn{display:flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--border);border-radius:7px;background:none;font-family:inherit;font-size:12px;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all .15s}.help-lang-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.help-menu-btn{display:none;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--border);border-radius:7px;background:none;cursor:pointer;color:var(--text-secondary)}.help-layout{display:flex;padding-top:var(--header-h);min-height:100vh}.help-sidebar{width:var(--sidebar-w);flex-shrink:0;position:fixed;top:var(--header-h);bottom:0;left:0;overflow-y:auto;padding:20px 16px 60px;border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;gap:18px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.help-nav-group-label{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);padding:0 8px;margin-bottom:6px}.help-nav-group{display:flex;flex-direction:column;gap:2px}.help-nav-link{display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:7px;font-size:13.5px;font-weight:500;color:var(--text-secondary);text-decoration:none;transition:all .12s;line-height:1.35}.help-nav-link:hover{background:var(--bg);color:var(--text)}.help-nav-link.active{background:var(--primary-light);color:var(--primary);font-weight:600}.help-nav-link svg{flex-shrink:0;opacity:.7}.help-nav-link.active svg{opacity:1}.help-main{flex:1;margin-left:var(--sidebar-w);display:flex;max-width:100%}.help-content{flex:1;max-width:760px;padding:40px 48px 80px;min-width:0}.help-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:12px;color:var(--text-secondary);margin-bottom:28px}.help-breadcrumb a{color:var(--text-secondary);text-decoration:none}.help-breadcrumb a:hover{color:var(--primary)}.help-breadcrumb-sep{color:var(--border)}.help-article-meta{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--border)}.help-article-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;background:var(--primary-light);color:var(--primary);border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-bottom:14px}.help-article-title{font-size:30px;font-weight:800;color:var(--text);line-height:1.18;letter-spacing:-.5px;margin-bottom:12px}.help-article-lede{font-size:16px;color:var(--text-secondary);line-height:1.6;margin-bottom:14px}.help-article-info{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:12.5px;color:var(--text-secondary)}.help-article-info span{display:flex;align-items:center;gap:5px}.help-prose h2{font-size:20px;font-weight:700;color:var(--text);margin:40px 0 14px;letter-spacing:-.3px;scroll-margin-top:calc(var(--header-h) + 16px)}.help-prose h3{font-size:15.5px;font-weight:700;color:var(--text);margin:26px 0 8px;scroll-margin-top:calc(var(--header-h) + 16px)}.help-prose p{font-size:15px;line-height:1.75;color:#374151;margin-bottom:16px}.help-prose ul,.help-prose ol{margin:0 0 16px;padding-left:22px}.help-prose li{font-size:15px;line-height:1.75;color:#374151;margin-bottom:6px}.help-prose ul ul,.help-prose ol ul{margin-top:6px;margin-bottom:4px}.help-prose strong{color:var(--text);font-weight:600}.help-prose em{color:var(--text);font-style:italic}.help-prose a{color:var(--primary);text-decoration:none;font-weight:500}.help-prose a:hover{text-decoration:underline}.help-prose code{font-family:SF Mono,Fira Code,ui-monospace,monospace;font-size:.88em;background:var(--primary-light);color:#0f4d8a;padding:1px 6px;border-radius:4px}.help-prose hr{border:none;border-top:1px solid var(--border);margin:40px 0}.help-callout{display:flex;gap:12px;padding:14px 16px;border-radius:10px;margin:20px 0;font-size:14px;line-height:1.6}.help-callout-icon{font-size:16px;flex-shrink:0;margin-top:1px;line-height:1.4}.help-callout-title{display:block;margin-bottom:4px;font-weight:700}.help-callout-body{color:inherit}.help-callout-body p:last-child{margin-bottom:0}.help-callout-info{background:var(--primary-light);color:#1e4d7b;border:1px solid var(--primary-muted)}.help-callout-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}.help-callout-tip{background:#fffbeb;color:#92400e;border:1px solid #fde68a}.help-callout-warning{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}.help-callout strong{font-weight:700}.help-steps{display:flex;flex-direction:column;gap:0;margin:24px 0}.help-step{display:flex;gap:16px;position:relative;padding-bottom:24px}.help-step:last-child{padding-bottom:0}.help-step-number{flex-shrink:0;width:28px;height:28px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;position:relative;z-index:1}.help-step:not(:last-child) .help-step-number:after{content:"";position:absolute;top:28px;left:50%;transform:translate(-50%);width:1px;height:calc(100% - 4px);background:var(--border)}.help-step-body{flex:1;padding-top:3px}.help-step-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}.help-step-desc{font-size:14px;color:#374151;line-height:1.65}.help-step-desc p{margin-bottom:8px;font-size:14px}.help-step-desc p:last-child{margin-bottom:0}.help-related{margin-top:56px;padding-top:28px;border-top:1px solid var(--border)}.help-related-title{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:14px}.help-related-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.help-related-card{display:flex;align-items:flex-start;gap:12px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:10px;text-decoration:none;transition:all .15s}.help-related-card:hover{border-color:var(--primary);box-shadow:0 2px 12px #137fec14;transform:translateY(-1px)}.help-related-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;background:var(--primary-light);color:var(--primary)}.help-related-cat{font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:3px}.help-related-name{font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:3px;line-height:1.35}.help-related-desc{font-size:12.5px;color:var(--text-secondary);line-height:1.45}.help-feedback{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:20px 0;border-top:1px solid var(--border);margin-top:48px}.help-feedback-label{font-size:13px;font-weight:600;color:var(--text-secondary)}.help-feedback-btn{display:flex;align-items:center;gap:6px;padding:7px 14px;border:1px solid var(--border);border-radius:7px;background:none;font-family:inherit;font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .15s}.help-feedback-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.help-feedback-meta{margin-left:auto;font-size:12px;color:var(--text-secondary)}.help-toc{width:var(--toc-w);flex-shrink:0;padding:44px 24px 40px;position:sticky;top:var(--header-h);align-self:flex-start;max-height:calc(100vh - var(--header-h));overflow-y:auto}.help-toc-label{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:10px}.help-toc-list{list-style:none;display:flex;flex-direction:column;gap:4px;padding:0;margin:0}.help-toc-item a{font-size:12.5px;color:var(--text-secondary);text-decoration:none;display:block;padding:4px 0 4px 10px;border-left:2px solid transparent;transition:all .12s;line-height:1.4}.help-toc-item a:hover{color:var(--text);border-left-color:var(--border)}.help-toc-item.active a{color:var(--primary);border-left-color:var(--primary);font-weight:600}.help-toc-item.toc-h3 a{padding-left:22px;font-size:12px}.help-hub-hero{text-align:center;padding:56px 20px 44px;background:linear-gradient(180deg,var(--primary-light) 0%,var(--bg) 100%);border-bottom:1px solid var(--border)}.help-hub-eyebrow{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:12px}.help-hub-title{font-size:38px;font-weight:800;letter-spacing:-.8px;line-height:1.15;color:var(--text);margin-bottom:12px}.help-hub-subtitle{font-size:16px;color:var(--text-secondary);max-width:560px;margin:0 auto 28px;line-height:1.6}.help-hub-search{max-width:520px;margin:0 auto;position:relative}.help-hub-search input{width:100%;height:48px;padding:0 16px 0 46px;background:var(--surface);border:1px solid var(--border);border-radius:10px;font-family:inherit;font-size:15px;color:var(--text);outline:none;box-shadow:0 4px 16px #0f172a0d;transition:border-color .15s,box-shadow .15s}.help-hub-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #137fec26}.help-hub-search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none}.help-hub-body{max-width:1080px;margin:0 auto;padding:48px 32px 80px}.help-hub-section-title{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:18px}.help-hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-bottom:56px}.help-hub-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px;transition:all .15s;display:flex;flex-direction:column}.help-hub-card:hover{border-color:var(--primary);box-shadow:0 6px 24px #137fec14;transform:translateY(-2px)}.help-hub-card-icon{width:40px;height:40px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:14px}.help-hub-card-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px;letter-spacing:-.2px}.help-hub-card-desc{font-size:13.5px;color:var(--text-secondary);line-height:1.55;margin-bottom:14px}.help-hub-card-links{list-style:none;padding:0;margin:0 0 8px;display:flex;flex-direction:column;gap:4px}.help-hub-card-links a{display:block;padding:4px 0;font-size:13.5px;font-weight:500;color:var(--text);text-decoration:none;transition:color .12s}.help-hub-card-links a:hover{color:var(--primary)}.help-hub-card-count{margin-top:auto;padding-top:12px;font-size:12px;font-weight:600;color:var(--text-secondary)}.help-hub-popular{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.help-hub-popular a{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:10px;text-decoration:none;transition:all .15s}.help-hub-popular a:hover{border-color:var(--primary);box-shadow:0 2px 12px #137fec14}.help-hub-popular-icon{width:32px;height:32px;border-radius:8px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.help-hub-popular-title{font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:2px}.help-hub-popular-desc{font-size:12px;color:var(--text-secondary)}.help-drawer-overlay{display:none;position:fixed;inset:0;background:#0006;z-index:200;opacity:0;transition:opacity .2s}.help-drawer-overlay.open{display:block;opacity:1}.help-sidebar.drawer-open{transform:translate(0)!important;box-shadow:4px 0 24px #0000001f}@media(max-width:1100px){.help-toc{display:none}.help-content{max-width:100%;padding:32px 36px 60px}}@media(max-width:768px){.help-shell{--sidebar-w: 280px}.help-sidebar{transform:translate(-100%);transition:transform .25s cubic-bezier(.4,0,.2,1);z-index:210;padding-top:16px}.help-main{margin-left:0}.help-content{padding:24px 20px 60px}.help-article-title{font-size:24px}.help-hub-title{font-size:28px}.help-hub-body{padding:32px 20px 60px}.help-header-logo .help-logo-sub{display:none}.help-menu-btn{display:flex}.help-header-search{display:none}.help-related-grid{grid-template-columns:1fr}}@media(max-width:480px){.help-content{padding:20px 16px 60px}.help-hub-hero{padding:40px 16px 32px}.help-hub-title{font-size:24px}}