:root{--ink:#192334;--muted:#667181;--navy:#10203e;--line:#e3e7ed;--blue:#3155ef;--paper:#fff;--bg:#f6f7fa}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;font-family:'Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:var(--ink);background:var(--bg);word-break:keep-all}a{color:inherit;text-decoration:none}button,select{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #8195fa;outline-offset:4px}header{height:76px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 4%;position:sticky;top:0;z-index:5}.brand{font-weight:750;font-size:22px;display:flex;align-items:center;gap:10px}.brand b{background:var(--blue);color:white;border-radius:7px;padding:3px 7px}.top-actions{display:flex;gap:24px;align-items:center;font-size:14px}.download{display:inline-flex;padding:12px 18px;border-radius:5px;color:white;background:var(--navy);font-weight:600}.layout{max-width:1320px;display:grid;grid-template-columns:245px minmax(0,1fr);gap:55px;margin:auto;padding:38px 4% 70px}.sidebar{position:sticky;top:110px;align-self:start}.sidebar p{font-size:14px;color:var(--muted);margin:0 0 17px}.sidebar h2{font-size:19px;margin:0 0 25px;line-height:1.5}.toc{display:flex;flex-direction:column;gap:5px}.toc a{font-size:14px;padding:12px;border-radius:5px;line-height:1.5;color:#626c7a}.toc a span{display:block;font-size:12px;margin-bottom:3px}.toc a:hover{background:#e9edf5}.toc a[aria-current=page]{background:#e7edff;color:#213c9c;font-weight:600}.sidebar-note{font-size:12px!important;margin-top:27px!important;line-height:1.8}.mobile-nav{display:none}.reader{min-width:0}.reader-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px;color:var(--muted);font-size:14px}.size-controls{display:flex;align-items:center;gap:8px}.size-controls button{height:35px;min-width:39px;border:1px solid var(--line);background:white;border-radius:4px;cursor:pointer}.size-controls button:disabled{opacity:.4;cursor:default}.article{background:white;padding:48px 54px;border:1px solid var(--line);border-radius:8px}.chapter-label{font-size:14px;color:#596985;margin:0 0 14px}.article h1{font-size:clamp(28px,3vw,38px);line-height:1.4;letter-spacing:-1px;margin:0 0 20px}.lede{font-size:18px;color:var(--muted);line-height:1.9;margin:0 0 32px}.source-label{font-size:13px;color:#7c8795;margin-bottom:32px;padding-bottom:25px;border-bottom:1px solid var(--line)}.prose{font-size:var(--reading-size,17px);line-height:1.95}.prose h2{font-size:1.25em;line-height:1.55;margin:34px 0 14px;letter-spacing:-.4px}.prose h3{font-size:1.05em;margin:25px 0 10px}.prose p{margin:0 0 18px}.prose ul,.prose ol{padding-left:24px;margin:0 0 22px}.prose li{margin-bottom:8px}.note{border-left:3px solid #c2cdec;background:#f6f8fc;padding:18px 20px;margin:25px 0;line-height:1.85;color:#50617a;font-size:15px}.source-pages{margin-top:38px;border-top:1px solid var(--line);padding-top:26px}.source-pages summary{cursor:pointer;font-size:15px;font-weight:600;line-height:1.7}.source-pages p{font-size:14px;color:var(--muted);line-height:1.7}.source-pages figure{margin:25px 0}.source-pages img{display:block;width:100%;height:auto;border:1px solid var(--line)}.source-pages figcaption{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}.chapter-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}.chapter-nav a{background:#fff;border:1px solid var(--line);border-radius:6px;padding:20px;font-size:15px;line-height:1.5}.chapter-nav a:last-child{text-align:right}.chapter-nav small{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}.bottom-download{display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--navy);color:white;padding:28px;border-radius:7px;margin-top:26px}.bottom-download p{font-size:14px;margin:7px 0 0;color:#bac6dd}.bottom-download .download{background:white;color:var(--navy);white-space:nowrap}.page-footer{font-size:12px;color:var(--muted);line-height:1.8;margin-top:23px}.cover-intro{display:flex;gap:26px;align-items:center;margin:24px 0}.cover-intro img{width:145px;height:auto;box-shadow:5px 8px 15px #10203e25}.cover-intro p{font-size:16px}.day-list{padding:0!important;list-style:none;display:grid;gap:8px}.day-list a{display:block;border:1px solid var(--line);padding:13px 16px;border-radius:5px;font-size:16px}.day-list a:hover{border-color:#a0b2e9;background:#f6f8ff}noscript p{padding:20px;background:#fff2cb}@media(max-width:950px){.layout{gap:25px;grid-template-columns:200px minmax(0,1fr)}.article{padding:32px}.top-actions{gap:15px}}@media(max-width:720px){header{height:68px;padding:0 5%}.brand{font-size:20px}.top-actions{font-size:13px;gap:14px}.top-actions .download{padding:10px 13px}.layout{display:block;padding:20px 5% 40px}.sidebar{display:none}.mobile-nav{display:block;margin:0 0 22px}.mobile-nav label{display:block;font-size:13px;margin-bottom:8px;color:var(--muted)}.mobile-nav select{width:100%;padding:13px;border:1px solid #ccd4e0;border-radius:5px;background:white;color:var(--ink);font-size:16px}.article{padding:26px 22px}.reader-top{font-size:13px}.size-controls{gap:5px}.lede{font-size:17px}.article h1{font-size:29px}.prose{line-height:1.9}.bottom-download{align-items:start;flex-direction:column;padding:23px}.cover-intro{align-items:start;gap:18px}.cover-intro img{width:105px}.chapter-nav a{padding:15px;font-size:14px}.top-actions>a:first-child{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,.sidebar,.mobile-nav,.reader-top,.chapter-nav,.bottom-download,.page-footer{display:none}.layout{display:block;padding:0}.article{border:0;padding:0}.source-pages{display:none}}