:root{--bar-h:64px;--rail-w:176px;--blueprint:#0d2236;--blueprint-2:#12304b;--blueprint-line:#78c8ff21;--cyan:#7fd6ff;--accent-bright:#4fd1b5;--card-bg:#fffdf9ed;--card-line:#e7dfd2f2;--shadow-card:0 24px 60px #0a18262e, 0 4px 14px #0a182614}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--ink);background:var(--blueprint);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0}h1,h2,h3,p{margin:0}ul,ol{margin:0;padding:0;list-style:none}button,input,select{font:inherit;color:inherit}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}[data-chapter-heading]:focus{outline:none}[data-chapter-heading]:focus-visible{outline:2px solid var(--accent)}.skip{z-index:100;background:var(--paper);color:var(--ink);transition:transform var(--dur) var(--ease-out);border-radius:10px;padding:10px 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#7fd6ff40}.sbar__end{align-items:center;gap:14px;display:flex}.sbar__langs{background:#14324a12;border-radius:11px;gap:2px;padding:3px;display:flex}.sbar--dark .sbar__langs{background:#ffffff14}.sbar__langs a{opacity:.7;border-radius:8px;place-items:center;min-width:40px;min-height:36px;padding:0 8px;font-size:12.5px;font-weight:600;text-decoration:none;display:grid}.sbar__langs a[aria-current]{opacity:1;background:var(--paper);color:var(--ink);box-shadow:var(--shadow-1)}.rail{left:20px;top:calc(50% + var(--bar-h) / 2);z-index:25;width:var(--rail-w);background:var(--card-bg);-webkit-backdrop-filter:blur(14px)saturate(1.2);backdrop-filter:blur(14px)saturate(1.2);border:1px solid var(--card-line);box-shadow:var(--shadow-1);color:var(--ink);transition:background-color var(--dur-slow) ease, color var(--dur-slow) ease, border-color var(--dur-slow) ease;border-radius:18px;padding:14px 12px 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16px;font-size:14.5px;font-weight:600;line-height:1.45}.phone{justify-items:center;gap:10px;margin:0;display:grid}.phone__frame{background:#0f1c27;border-radius:38px;width:236px;height:470px;padding:10px;position:relative;box-shadow:0 30px 60px #0a18264d,inset 0 0 0 1.5px #2b3b48}.phone__notch{z-index:2;background:#0f1c27;border-radius:12px;width:74px;height:20px;margin-left:-37px;position:absolute;top:16px;left:50%}.phone__screen{background:var(--paper);border-radius:29px;flex-direction:column;gap:10px;height:100%;padding:44px 14px 14px;display:flex;overflow:hidden}.phone__where{color:var(--ink-3);letter-spacing:.04em;font-size:11px;font-weight:650}.phone__scan{background:#1d2a33;border-radius:14px;place-items:center;height:118px;display:grid;position:relative;overflow:hidden}.phone__paper{background:#f4f1ea;border-radius:4px;align-content:start;gap:7px;width:92px;height:100px;padding:10px;display:grid;transform:rotate(-4deg)}.phone__paper span{background:#cfc6b6;border-radius:2px;height:5px}.phone__paper span:first-child{background:#9aa6ae;width:60%}.phone__paper span:nth-child(4){width:70%}.phone__scanicon{color:var(--accent-bright);position:absolute;top:8px;right:8px}.phone__beam{background:var(--accent-bright);height:2px;animation:beam 2.4s var(--ease-in-out) infinite alternate;position:absolute;left:10%;right:10%;box-shadow:0 0 12px 2px #4fd1b5b3}@keyframes beam{0%{transform:translateY(-46px)}to{transform:translateY(46px)}}.phone__doc{align-items:center;gap:6px;font-size:13px;font-weight:700;display:flex}.phone__fields{gap:6px;margin:0;display:grid}.phone__fields div{border-bottom:1px solid var(--line-2);justify-content:space-between;gap:8px;padding-bottom:6px;font-size:11.5px;display:flex}.phone__fields dt{color:var(--ink-3)}.phone__fields dd{text-align:right;margin:0;font-weight:650}.phone__confirm{background:var(--accent);color:#fff;border-radius:11px;place-items:center;height:38px;margin-top:auto;font-size:13px;font-weight:650;display:grid}.phone__offline{color:var(--ink-3);text-align:center;justify-content:center;align-items:center;gap:5px;font-size:10px;display:flex}.chat{border:1px solid var(--line);background:var(--paper-2);border-radius:16px;margin-top:20px;overflow:hidden}.chat__head{border-bottom:1px solid var(--line);background:var(--paper);align-items:center;gap:8px;padding:10px 12px;display:flex}.chat__avatar{background:var(--navy);width:26px;height:26px;color:var(--accent-bright);border-radius:8px;place-items:center;display:grid}.chat__name{margin-right:auto;font-size:13.5px;font-weight:700}.chat__log{flex-direction:column;gap:10px;min-height:300px;padding:14px 12px;display:flex}.msg{max-width:88%;animation:msg-in var(--dur-slow) var(--ease-out);border-radius:14px;padding:10px 12px;font-size:13.5px;line-height:1.48}@keyframes msg-in{0%{opacity:0;transform:translateY(8px)scale(.98)}}.msg--user{background:var(--navy);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.msg--bot{background:var(--paper);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}.msg__sources{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.msg__sources li{background:var(--accent-soft);color:var(--accent-ink);border-radius:7px;align-items:center;gap:5px;padding:3px 8px;font-size:11.5px;font-weight:600;display:inline-flex}.msg__actions{gap:6px;margin-top:8px;display:flex}.msg__actions span{border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:12px;font-weight:650}.msg__actions .is-primary{background:var(--accent);border-color:var(--accent);color:#fff}.msg--typing{gap:4px;padding:12px 14px;display:flex}.msg--typing span{background:var(--ink-3);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite 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0;display:grid}.cam__feed{aspect-ratio:16/9;filter:saturate(.35)contrast(1.05);background:repeating-linear-gradient(0deg,#ffffff09 0 1px,#0000 1px 3px),url(/site/posters/stage-2.webp) 50% 40%/cover,linear-gradient(160deg,#3b4a52,#1b252c);border-radius:14px;width:100%;position:relative;overflow:hidden}.cam__id,.cam__rec{color:#fff;background:#0000008c;border-radius:6px;padding:3px 8px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;font-weight:600;position:absolute;top:10px}.cam__id{left:10px}.cam__rec{align-items:center;gap:6px;display:inline-flex;right:10px}.cam__rec i{background:#ff4d3d;border-radius:50%;width:7px;height:7px;animation:1.4s steps(2,jump-none) infinite rec}@keyframes rec{50%{opacity:.2}}.cam__box{border:2px solid #ff4d3d;border-radius:3px;width:9%;height:30%;position:absolute;top:46%;left:44%}.cam__box--ok{border-color:#3ddc97;top:50%;left:60%}.cam__label{color:#fff;white-space:nowrap;background:#ff4d3d;border-radius:4px;padding:2px 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