*,*:before,*:after{box-sizing:border-box}html,body,#guide iframe{width:100%;height:100%}html,body{margin:0;overflow:hidden;background:#010205}body{--nav-height: 92px;min-height:100vh;min-height:100dvh}#guide{position:fixed;inset:var(--nav-height) 0 0}#guide iframe{display:block;border:0}.voice-hint{position:fixed;z-index:12;left:50%;top:calc(var(--nav-height) + (100dvh - var(--nav-height)) / 2);transform:translate(-50%,-50%);display:flex;align-items:center;gap:13px;width:max-content;max-width:calc(100vw - 32px);padding:12px 20px 12px 13px;border:1px solid rgba(141,187,255,.25);border-radius:99px;background:#04091861;box-shadow:0 16px 40px #00000073,0 0 25px #2c7be526;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#ffffffeb;font:600 13.5px/1.35 Inter Tight,Inter,system-ui,sans-serif;letter-spacing:.01em;cursor:pointer;pointer-events:auto;user-select:none;transition:transform .25s cubic-bezier(.16,1,.3,1),left .5s cubic-bezier(.16,1,.3,1),top .5s cubic-bezier(.16,1,.3,1),opacity .4s ease,padding .4s ease,gap .4s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease,color .25s ease;animation:voice-hint-pop .5s cubic-bezier(.16,1,.3,1) forwards}.voice-hint:hover{transform:translate(-50%,-50%) scale(1.04);background:#08122c99;border-color:#8dbbff8c;box-shadow:0 20px 48px #0000008c,0 0 35px #2c7be559;color:#fff}.voice-hint:active{transform:translate(-50%,-50%) scale(.97)}.voice-hint.is-active{background:#0c1c4480;border-color:#4a94f2a6;box-shadow:0 18px 45px #00000080,0 0 30px #2c7be566;color:#fff}.voice-hint:focus-visible{outline:2px solid #7db2ff;outline-offset:4px}.voice-hint-label{display:flex;flex-direction:column;max-width:260px;overflow:hidden;white-space:nowrap;transition:max-width .4s ease,opacity .3s ease}.voice-hint-sub{font-size:11px;font-weight:500;opacity:.65}.voice-hint.is-active .voice-hint-sub{display:none}.voice-hint-text{max-width:260px;overflow:hidden;white-space:nowrap;transition:max-width .4s ease,opacity .3s ease}.voice-hint.is-compact{left:20px;top:calc(100dvh - 20px);padding:8px;gap:0;opacity:.55;animation:none;transform:translateY(-100%)}.voice-hint.is-compact:hover,.voice-hint.is-compact:focus-visible{opacity:1;transform:translateY(-100%) scale(1.06)}.voice-hint.is-compact:active{transform:translateY(-100%) scale(.97)}.voice-hint.is-compact .voice-hint-label,.voice-hint.is-compact .voice-hint-text,.voice-hint.is-compact .voice-hint-sub{display:none}.voice-hint-icon{width:32px;height:32px;display:grid;flex:none;place-items:center;border-radius:50%;background:linear-gradient(135deg,#3b8bf0d9,#1351d8d9);box-shadow:0 4px 12px #1351d866;transition:background .25s ease,box-shadow .25s ease,transform .25s ease}.voice-hint:hover .voice-hint-icon,.voice-hint.is-active .voice-hint-icon{background:linear-gradient(135deg,#3b8bf0,#1351d8);box-shadow:0 4px 16px #1351d8a6}.voice-hint-icon svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.voice-hint .icon-off{display:block}.voice-hint .icon-on,.voice-hint.is-active .icon-off{display:none}.voice-hint.is-active .icon-on{display:block}@keyframes voice-hint-pop{0%{opacity:0;transform:translate(-50%,calc(-50% + 12px)) scale(.94)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.chapter-nav{position:fixed;z-index:10;inset:0 0 auto;height:var(--nav-height);display:flex;align-items:center;gap:28px;padding:14px 24px;border-bottom:1px solid rgba(141,187,255,.12);background:#050811f5;color:#fff;font-family:Inter Tight,Inter,system-ui,sans-serif}.chapter-brand{display:flex;flex:none;align-items:center;gap:11px;color:#fff;font-size:13px;font-weight:800;letter-spacing:.18em;text-decoration:none}.chapter-brand img{width:38px;height:38px}.chapter-demo{min-height:42px;display:inline-flex;flex:none;align-items:center;justify-content:center;padding:0 18px;border:1px solid rgba(255,255,255,.16);border-radius:99px;background:linear-gradient(90deg,#3b8bf0,#1351d8);box-shadow:0 12px 30px #1351d847;color:#fff;font-size:12px;font-weight:700;text-decoration:none;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease}.chapter-demo:hover,.chapter-demo:focus-visible{transform:translateY(-2px);box-shadow:0 15px 34px #1351d866}.chapter-summary,.chapter-list{min-width:0}.chapter-summary{flex:1}.chapter-current{display:none}.chapter-list{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}.chapter-list::-webkit-scrollbar{display:none}.chapter{--progress: 0;min-width:72px;flex:1 0 72px;padding:0;border:0;background:transparent;color:#ffffff6b;font:inherit;text-align:left;cursor:pointer;transition:color .18s ease}.chapter:hover,.chapter:focus-visible,.chapter.is-active{color:#fff}.chapter:focus-visible{outline:2px solid #7db2ff;outline-offset:5px;border-radius:2px}.chapter-label{display:block;overflow:hidden;margin-bottom:10px;font-size:11px;font-weight:700;line-height:1;text-overflow:ellipsis;white-space:nowrap}.chapter-track{position:relative;display:block;height:4px;overflow:hidden;border-radius:99px;background:#ffffff1f}.chapter-track i{position:absolute;inset:0;display:block;background:linear-gradient(90deg,#8dbbff,#2c7be5);transform:scaleX(var(--progress));transform-origin:left}@media(max-width:767px){body{--nav-height: 122px}.chapter-nav{display:grid;grid-template-columns:1fr auto;grid-template-rows:34px 1fr;gap:8px 12px;padding:10px 12px 12px}.chapter-brand{grid-column:1;grid-row:1;gap:8px;font-size:11px}.chapter-brand img{width:30px;height:30px}.chapter-summary{grid-column:1 / -1;grid-row:2;margin-top:1px}.chapter-demo{grid-column:2;grid-row:1;min-height:32px;padding:0 12px;font-size:10px}.chapter-current{display:block;max-width:100%;overflow:hidden;margin-bottom:7px;color:#ffffffb3;font-size:11px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.chapter-list{gap:6px}.chapter{min-width:42px;flex-basis:42px}.chapter-label{display:none}.chapter-track{height:3px}.voice-hint{padding:11px 16px 11px 11px;font-size:12.5px;gap:10px}.voice-hint.is-compact{left:12px;top:calc(100dvh - 12px);padding:7px}.voice-hint-icon{width:28px;height:28px}.voice-hint-icon svg{width:15px;height:15px}}noscript{position:fixed;inset:0;display:grid;place-items:center;padding:24px;color:#fff;font:500 16px/1.5 system-ui,sans-serif;text-align:center}noscript a{color:#8dbbff}
