.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--tap);min-width:var(--tap);padding:0 16px;border-radius:var(--radius);border:1px solid transparent;background:transparent;color:var(--ink);font-size:var(--fs-15);cursor:pointer;text-decoration:none;white-space:nowrap;transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn--icon{padding:0}.btn--small{min-height:34px;padding:0 10px;font-size:var(--fs-13)}.btn--block{width:100%}.btn--solid{background:var(--accent);color:var(--accent-ink)}.btn--solid:hover:not(:disabled){filter:brightness(1.08)}.btn--outline{border-color:var(--hairline);color:var(--ink)}.btn--outline:hover:not(:disabled){background:var(--overlay-tint)}.btn--ghost{color:var(--ink-2)}.btn--ghost:hover:not(:disabled){background:var(--overlay-tint);color:var(--ink)}.btn--danger{color:var(--danger)}.btn--danger:hover:not(:disabled){background:var(--overlay-tint)}.btn--danger-solid{background:var(--danger);color:var(--accent-ink)}.btn--danger-solid:hover:not(:disabled){filter:brightness(1.08)}.btn[aria-pressed=true]{background:var(--surface-2);color:var(--ink)}.dlg-scrim{position:fixed;inset:0;z-index:100;background:var(--scrim);display:flex;align-items:center;justify-content:center;padding:var(--pad)}.dlg{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--elevation);width:min(460px,100%);max-height:85vh;overflow:auto;padding:20px}.dlg h2{font-size:var(--fs-17);font-family:var(--font-ui);font-weight:600;margin-bottom:8px}.dlg-body{color:var(--ink-2);white-space:pre-wrap;margin-bottom:16px}.dlg-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}.sheet-scrim{position:fixed;inset:0;z-index:90;background:var(--scrim);display:flex;align-items:flex-end}.sheet{background:var(--surface);border-top:1px solid var(--hairline);border-radius:var(--radius) var(--radius) 0 0;box-shadow:var(--elevation);width:100%;max-height:85vh;overflow:auto;padding:20px 20px calc(20px + env(safe-area-inset-bottom));margin:0 auto}@media (min-width: 800px){.sheet-scrim{align-items:center;justify-content:center;padding:var(--pad)}.sheet{max-width:560px;border-radius:var(--radius);border:1px solid var(--hairline)}}.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.sheet-head h2{font-family:var(--font-ui);font-size:var(--fs-17);font-weight:600}.toast-wrap{position:fixed;left:50%;transform:translate(-50%);bottom:calc(88px + env(safe-area-inset-bottom));z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;width:min(560px,calc(100vw - 32px));pointer-events:none}.toast{pointer-events:auto;display:flex;align-items:center;gap:12px;background:var(--surface-2);border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--elevation);padding:12px 12px 12px 16px;width:100%;animation:toast-in var(--dur) var(--ease)}.toast--danger{border-color:var(--danger)}.toast-text{flex:1 1 auto;min-width:0}.toast-title{color:var(--ink)}.toast-body{color:var(--ink-2);font-size:var(--fs-13);margin-top:2px}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}:root,:root[data-theme=dark]{--bg: #161513;--surface: #1F1E1B;--surface-2: #272521;--ink: #E9E4D9;--ink-2: #A9A296;--ink-3: #736D63;--hairline: rgba(233, 228, 217, .1);--accent: #7FA98D;--accent-ink: #0F1511;--danger: #D98A7B;--focus: #7FA98D;--scrim: rgba(0, 0, 0, .55);--overlay-tint: rgba(233, 228, 217, .06)}:root[data-theme=light]{--bg: #FAF7F2;--surface: #FFFFFF;--surface-2: #F2EEE7;--ink: #2B2A28;--ink-2: #5C574F;--ink-3: #8A8378;--hairline: rgba(43, 42, 40, .12);--accent: #3E5F4A;--accent-ink: #FFFFFF;--danger: #A4503F;--focus: #3E5F4A;--scrim: rgba(0, 0, 0, .35);--overlay-tint: rgba(43, 42, 40, .05)}:root{--reader-dark-bg: #161513;--reader-dark-fg: #E9E4D9;--reader-sepia-bg: #F4ECD8;--reader-sepia-fg: #4A3B2A;--reader-light-bg: #FFFFFF;--reader-light-fg: #2B2A28}:root{--hl-yellow: #FFD666;--hl-green: #8FD9A8;--hl-blue: #8FBEE0;--hl-pink: #F0A6C0;--hl-purple: #C0A6E0;--hl-orange: #F2B47E}:root{--radius: 10px;--radius-sm: 6px;--pad: 16px;--gap-section: 24px;--tap: 44px;--elevation: 0 6px 24px rgba(0, 0, 0, .28);--dur: .2s;--ease: cubic-bezier(.2, 0, 0, 1);--font-cjk: "Noto Sans SC", "Noto Sans JP", "Noto Sans KR", "PingFang SC", "Hiragino Sans", "Apple SD Gothic Neo", "Microsoft YaHei", sans-serif;--font-ui: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", var(--font-cjk);--font-read: Literata, Georgia, "Times New Roman", var(--font-cjk), serif;--font-a11y: "Atkinson Hyperlegible", var(--font-ui);--fs-13: 13px;--fs-15: 15px;--fs-17: 17px;--fs-22: 22px;--fs-28: 28px;--lh-ui: 1.45}@media (prefers-reduced-motion: reduce){:root{--dur: 0ms}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}:root{--cover-1: #3E5F4A;--cover-2: #5A4A6A;--cover-3: #6A4A3E;--cover-4: #3E5566;--cover-5: #66573E;--cover-6: #4A3E5F;--cover-7: #3E6660;--cover-8: #663E4F;--cover-ink: #F4EFE6}@font-face{font-family:Literata;src:url(/fonts/literata-regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Literata;src:url(/fonts/literata-bold.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Inter;src:url(/fonts/inter-regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Inter;src:url(/fonts/inter-semibold.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:Atkinson Hyperlegible;src:url(/fonts/atkinson-regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-ui);font-size:var(--fs-15);line-height:var(--lh-ui);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;overscroll-behavior-y:none}h1,h2,h3{font-family:var(--font-read);font-weight:600;margin:0}h1{font-size:var(--fs-28)}h2{font-size:var(--fs-22)}h3{font-size:var(--fs-17)}p{margin:0}a{color:var(--accent);text-underline-offset:2px}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:var(--radius-sm)}:focus:not(:focus-visible){outline:none}hr,.hairline{border:0;border-top:1px solid var(--hairline);margin:0}input,textarea,select,button{font:inherit;color:inherit}input[type=text],input[type=search],input[type=number],input[type=password],textarea,select{background:var(--surface-2);border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink);padding:10px 12px;min-height:var(--tap);width:100%}textarea{min-height:120px;resize:vertical;line-height:1.5}::placeholder{color:var(--ink-3)}::selection{background:var(--accent);color:var(--accent-ink)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.app-shell{display:flex;height:100dvh;overflow:hidden}.sidebar{width:240px;flex:0 0 240px;border-right:1px solid var(--hairline);background:var(--surface);padding:var(--pad);display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar-brand{font-family:var(--font-read);font-size:var(--fs-22);padding:4px 8px var(--pad)}.nav-link{display:flex;align-items:center;gap:12px;min-height:var(--tap);padding:0 12px;border-radius:var(--radius-sm);color:var(--ink-2);text-decoration:none;transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}.nav-link:hover{background:var(--overlay-tint);color:var(--ink)}.nav-link[aria-current=page]{background:var(--surface-2);color:var(--ink)}.content{flex:1 1 auto;min-width:0;min-height:0;display:flex;flex-direction:column;padding:var(--pad);padding-bottom:96px;overflow:hidden}.tabbar{position:fixed;inset:auto 0 0;z-index:40;display:none;justify-content:space-around;background:var(--surface);border-top:1px solid var(--hairline);padding-bottom:env(safe-area-inset-bottom)}.tabbar .nav-link{flex-direction:column;gap:2px;font-size:var(--fs-13);min-width:var(--tap);padding:6px 8px;border-radius:0}.content>.page-scroll{overflow-y:auto;flex:1 1 auto;min-height:0}@media (max-width: 799px){.sidebar{display:none}.tabbar{display:flex}.content{padding-bottom:calc(72px + env(safe-area-inset-bottom))}}body[data-reading=true] .tabbar,body[data-reading=true] .sidebar{display:none}body[data-reading=true] .content{padding:0}.section{margin-bottom:var(--gap-section)}.muted{color:var(--ink-2)}.tertiary{color:var(--ink-3);font-size:var(--fs-13)}.row{display:flex;align-items:center;gap:12px}.spread{display:flex;align-items:center;justify-content:space-between;gap:12px}.stack{display:flex;flex-direction:column;gap:12px}.wrap{display:flex;flex-wrap:wrap;gap:8px}