:root{--paper:#f5ebdd;--sheet:#fffaf2;--ink:#213466;--muted:#5d6c7d;--blue:#d7e5ef;--mist:#8fafc1;--line:rgba(33,52,102,.17);--serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;--sans:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}
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.reading-pane{padding:0 clamp(26px,4.3vw,76px);min-width:0;background-image:linear-gradient(90deg,transparent calc(100% - 1px),#21346605 0);background-size:100px 100%}.chapter-nav{height:82px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:6px;font-size:12px}.chapter-nav button{padding:12px 0;font-size:13px;color:var(--muted)}.chapter-nav button[aria-current=step]{color:var(--ink);box-shadow:inset 0 -2px var(--ink)}.chapter-nav span{color:#99a4ac}main{padding:42px 0 34px;min-height:calc(100svh - 254px)}main:focus{outline:none}.page{animation:page-in .5s cubic-bezier(.2,.7,.3,1) both}.eyebrow{font-size:11px;letter-spacing:2.2px;font-weight:600;text-transform:uppercase}.eyebrow .number{display:inline-block;font:italic 18px var(--serif);padding-right:12px;letter-spacing:0}.title-mark{position:relative;z-index:0;display:inline-block}.title-mark:after{content:"";position:absolute;left:-4px;right:-8px;height:.42em;bottom:.04em;background:#cfdfeb;z-index:-1;transform:rotate(-2deg)}.lede{color:var(--muted);line-height:1.9;font-size:16px;max-width:34em}.mobile-scene{display:none}.welcome .intro-note{margin:28px 0 32px;padding:20px 0 20px 22px;border-left:1px solid var(--mist);font-family:var(--serif);font-size:19px;line-height:1.9}.intro-note small{display:block;font:11px var(--sans);letter-spacing:2px;margin-bottom:9px;color:var(--muted)}.primary,.secondary{width:100%;padding:15px 20px;min-height:54px;border-radius:3px;font-size:15px;transition:transform .2s,box-shadow .2s,background .2s}.primary{background:var(--ink);color:#fff9ed;margin-top:22px;box-shadow:3px 4px 0 #21346614}.primary:hover{background:#304c82;transform:translateY(-2px);box-shadow:3px 7px 0 #21346614}.primary:active,.secondary:active{transform:translateY(1px)}.secondary{border:1px solid var(--line);margin-top:12px;background:#fffaf280}.secondary:hover{background:#e3ebed}.text-button{padding:7px 0;border-bottom:1px solid var(--ink);font-size:13px}.back{font-size:12px;padding:0 0 20px;color:var(--muted)}.back:hover{color:var(--ink);text-decoration:underline}.guide{display:flex;align-items:center;gap:10px;margin:26px 0 0}.guide img{width:64px;height:64px;object-fit:contain;flex-shrink:0;transition:transform .4s}.guide:hover img{transform:rotate(-7deg) translateY(-4px)}.guide p{font-family:var(--serif);font-size:16px;line-height:1.75}.guide small{font:11px var(--sans);color:var(--muted);display:block;margin-top:5px}.fineprint{font-size:12px;color:var(--muted);margin-top:16px;line-height:1.8}.page-footer{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;min-height:70px;padding:16px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.page-footer button{font-size:11px;text-decoration:underline;text-underline-offset:4px}
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@keyframes page-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes arrive{from{opacity:.35;transform:scale(1.025)}to{opacity:1;transform:scale(1)}}@keyframes drift{to{transform:translateX(15%) translateY(8%)}}@keyframes compass{to{transform:rotate(360deg)}}@keyframes fall{0%{transform:translate(0,-20px) rotate(0);opacity:0}15%{opacity:1}100%{transform:translate(-60px,240px) rotate(200deg);opacity:0}}
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@media(max-width:360px){.masthead{padding:0 18px}.header-actions{gap:10px}.brand small{font-size:8px}.reading-pane{padding:0 20px}.brand{gap:8px;font-size:18px}.quiet{font-size:10px}h1{font-size:30px}}
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