:root{--stoc-primary:#3b82f6;--stoc-primary-rgb:59, 130, 246;--stoc-primary-light:#60a5fa;--stoc-primary-lighter:#93c5fd;--stoc-text:#1f2937;--stoc-text-muted:#6b7280;--stoc-text-light:#9ca3af;--stoc-bg:#ffffff;--stoc-bg-hover:#f8fafc;--stoc-bg-active:rgba(var(--stoc-primary-rgb), 0.06);--stoc-border:#e5e7eb;--stoc-border-light:#f3f4f6;--stoc-radius:14px;--stoc-radius-sm:8px;--stoc-header-h:80px;--stoc-top:calc(var(--stoc-header-h) + 16px)}.stoc-scroll-mt{scroll-margin-top:var(--stoc-top)}.stoc-floating{display:none}@media (min-width:1080px){.stoc-floating{display:block;position:fixed;top:var(--stoc-top);left:20px;width:260px;z-index:90;max-height:calc(100vh - var(--stoc-header-h) - 40px)}}@media (min-width:1400px){.stoc-floating{left:calc((100vw - 764px) / 2 - 280px);width:260px}}.stoc-card{background:var(--stoc-bg);border:1px solid var(--stoc-border);border-radius:var(--stoc-radius);overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04),0 4px 12px rgba(0,0,0,.03);transition:box-shadow 0.3s,border-color 0.3s}.stoc-card:hover{border-color:rgba(var(--stoc-primary-rgb),.2);box-shadow:0 2px 4px rgba(0,0,0,.04),0 8px 24px rgba(var(--stoc-primary-rgb),.08)}.stoc-header{display:flex;align-items:center;justify-content:space-between;width:100%;background:linear-gradient(135deg,rgba(var(--stoc-primary-rgb),.03),rgba(var(--stoc-primary-rgb),.07));border:none;border-bottom:1px solid var(--stoc-border-light);cursor:pointer;padding:14px 16px;transition:background 0.2s;font-family:inherit}.stoc-header--static{cursor:default}.stoc-header:hover{background:linear-gradient(135deg,rgba(var(--stoc-primary-rgb),.05),rgba(var(--stoc-primary-rgb),.1))}.stoc-header:focus-visible{outline:2px solid var(--stoc-primary-light);outline-offset:-2px}.stoc-title{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:var(--stoc-primary);text-transform:uppercase;letter-spacing:.6px}.stoc-icon{width:15px;height:15px;flex-shrink:0;opacity:.7}.stoc-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;background:var(--stoc-primary);color:#fff;font-size:10px;font-weight:700;border-radius:99px}.stoc-chevron{width:14px;height:14px;color:var(--stoc-text-muted);transition:transform 0.3s cubic-bezier(.4,0,.2,1);flex-shrink:0}.stoc-chevron.stoc-collapsed{transform:rotate(180deg)}.stoc-body{padding:14px 16px 16px}.stoc-body.stoc-hidden{display:none}.stoc-progress{margin-bottom:14px}.stoc-progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.stoc-progress-label{font-size:10px;font-weight:600;color:var(--stoc-text-light);text-transform:uppercase;letter-spacing:.5px}.stoc-progress-pct{font-size:11px;font-weight:800;color:var(--stoc-primary);font-variant-numeric:tabular-nums}.stoc-progress-track{position:relative;height:4px;background:var(--stoc-border-light);border-radius:99px;overflow:hidden}.stoc-progress-bar{position:absolute;inset:0;width:0%;background:linear-gradient(90deg,var(--stoc-primary),var(--stoc-primary-light),var(--stoc-primary-lighter));background-size:200% 100%;border-radius:99px;transition:width 0.2s ease-out;animation:stocShimmer 3s ease-in-out infinite}@keyframes stocShimmer{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}.stoc-scroll{max-height:calc(100vh - var(--stoc-header-h) - 220px);overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:var(--stoc-border) transparent}.stoc-scroll::-webkit-scrollbar{width:4px}.stoc-scroll::-webkit-scrollbar-track{background:transparent}.stoc-scroll::-webkit-scrollbar-thumb{background:var(--stoc-border);border-radius:99px}.stoc-list{list-style:none!important;margin:0!important;padding:0!important}.stoc-item{position:relative;margin:0!important;padding:0!important;list-style:none!important}.stoc-item::before{display:none!important}.stoc-item--sub{padding-left:16px!important}.stoc-line{position:absolute;left:13px;top:28px;bottom:0;width:2px;background:var(--stoc-border-light);border-radius:1px;z-index:0;transition:background 0.4s}.stoc-item--sub .stoc-line{left:29px}.stoc-item.stoc-passed .stoc-line{background:linear-gradient(180deg,var(--stoc-primary-light),rgba(var(--stoc-primary-rgb),.15))}.stoc-link{display:flex;align-items:flex-start;gap:10px;width:100%;background:none;border:none;cursor:pointer;padding:7px 8px 7px 4px;text-align:left;font-family:inherit;font-size:13px;line-height:1.45;color:var(--stoc-text-muted);border-radius:var(--stoc-radius-sm);position:relative;z-index:1;transition:color 0.25s,background 0.25s,padding-left 0.2s;text-decoration:none}.stoc-link:hover{color:var(--stoc-text);background:var(--stoc-bg-hover);padding-left:8px}.stoc-link:focus-visible{outline:2px solid var(--stoc-primary-light);outline-offset:1px}.stoc-dot-wrap{position:relative;width:18px;height:18px;min-width:18px;display:flex;align-items:center;justify-content:center;margin-top:1px}.stoc-dot{width:8px;height:8px;border-radius:50%;border:2px solid var(--stoc-border);background:var(--stoc-bg);position:relative;z-index:2;transition:background 0.3s,border-color 0.3s,transform 0.3s cubic-bezier(.34,1.56,.64,1)}.stoc-dot-glow{position:absolute;inset:0;border-radius:50%;background:var(--stoc-primary-light);opacity:0;z-index:1;transition:opacity 0.3s}.stoc-text{flex:1;transition:font-weight 0.2s}.stoc-link.stoc-active{color:var(--stoc-primary);background:var(--stoc-bg-active)}.stoc-link.stoc-active .stoc-text{font-weight:600}.stoc-link.stoc-active .stoc-dot{background:var(--stoc-primary);border-color:var(--stoc-primary);transform:scale(1.25)}.stoc-link.stoc-active .stoc-dot-glow{opacity:1;animation:stocPulse 2s ease-in-out infinite}@keyframes stocPulse{0%,100%{transform:scale(1);opacity:.25}50%{transform:scale(2.2);opacity:0}}.stoc-item.stoc-passed .stoc-dot{background:rgba(var(--stoc-primary-rgb),.35);border-color:rgba(var(--stoc-primary-rgb),.35)}.stoc-item.stoc-passed .stoc-link:not(.stoc-active){color:var(--stoc-text)}.stoc-fab{display:flex;align-items:center;gap:8px;position:fixed;bottom:20px;right:20px;z-index:900;padding:0 16px 0 0;background:var(--stoc-primary);color:#fff;border:none;border-radius:50px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;height:48px;box-shadow:0 4px 14px rgba(var(--stoc-primary-rgb),.4),0 2px 6px rgba(0,0,0,.12);transition:transform 0.25s cubic-bezier(.34,1.56,.64,1),box-shadow 0.25s;-webkit-tap-highlight-color:transparent}.stoc-fab:hover{transform:translateY(-3px) scale(1.02)}.stoc-fab:active{transform:translateY(-1px) scale(.98)}@media (min-width:1080px){.stoc-fab{display:none!important}}.stoc-fab-ring{position:relative;width:48px;height:48px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.stoc-fab-svg{position:absolute;inset:0;width:100%;height:100%}.stoc-fab-track{stroke:rgba(255,255,255,.15)}.stoc-fab-fill{stroke:rgba(255,255,255,.85);transition:stroke-dashoffset 0.2s ease-out}.stoc-fab-icon{width:18px;height:18px;position:relative;z-index:1}.stoc-fab-label{line-height:1;white-space:nowrap}.stoc-overlay{display:none;position:fixed;inset:0;z-index:950;background:rgba(0,0,0,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.stoc-overlay.stoc-visible{display:block;animation:stocFade 0.2s ease}@keyframes stocFade{from{opacity:0}to{opacity:1}}.stoc-drawer{position:fixed;bottom:0;left:0;right:0;z-index:960;background:var(--stoc-bg);border-radius:20px 20px 0 0;box-shadow:0 -4px 30px rgba(0,0,0,.15);max-height:72vh;transform:translateY(100%);transition:transform 0.35s cubic-bezier(.4,0,.2,1);overflow:hidden;will-change:transform}.stoc-drawer.stoc-open{transform:translateY(0)}.stoc-drawer.stoc-swiping{transition:none}.stoc-drawer-handle{display:flex;justify-content:center;padding:10px 0 2px;cursor:grab;touch-action:none}.stoc-drawer-bar{width:40px;height:4px;background:#d1d5db;border-radius:99px}.stoc-drawer-header{display:flex;align-items:center;justify-content:space-between;padding:6px 20px 12px;border-bottom:1px solid var(--stoc-border-light)}.stoc-drawer-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--stoc-primary);text-transform:uppercase;letter-spacing:.5px}.stoc-drawer-close{background:none;border:none;cursor:pointer;padding:8px;border-radius:var(--stoc-radius-sm);color:var(--stoc-text-muted);transition:background 0.15s;-webkit-tap-highlight-color:transparent}.stoc-drawer-close:hover{background:var(--stoc-bg-hover)}.stoc-drawer-close svg{width:20px;height:20px}.stoc-drawer-nav{padding:12px 20px 28px;overflow-y:auto;max-height:calc(72vh - 150px);-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.stoc-list--mobile .stoc-link{padding:10px 8px 10px 4px;font-size:14px;min-height:44px}.stoc-list--mobile .stoc-dot-wrap{width:20px;height:20px;min-width:20px;margin-top:2px}.stoc-list--mobile .stoc-dot{width:10px;height:10px}.stoc-list--mobile .stoc-line{left:14px;top:32px}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}}.stoc-widget{position:-webkit-sticky;position:sticky;top:var(--stoc-top);z-index:10;max-height:calc(100vh - var(--stoc-header-h) - 32px);margin-bottom:20px}.widget-smart-toc,aside:has(.stoc-widget),.sidebar:has(.stoc-widget),[class*="sidebar"]:has(.stoc-widget){align-self:start}.row:has(.stoc-sticky){display:flex!important;flex-wrap:wrap}.widget-area:has(.stoc-sticky){height:100%}.widget-area>.widget:last-child:has(.stoc-sticky),.widget-area>.widget:only-child:has(.stoc-sticky){height:100%}.stoc-sticky-parent{align-self:start}.stoc-desktop-inline{margin-bottom:24px}.stoc-desktop-inline.stoc-sticky{position:-webkit-sticky;position:sticky;top:var(--stoc-top);z-index:10;max-height:calc(100vh - var(--stoc-header-h) - 32px);margin-bottom:20px}.stoc-sticky-parent:has(.stoc-desktop-inline.stoc-sticky){align-self:stretch!important}