.Shell-module__CMZqma__app{--header-space:80px;--page-gutter:64px;min-height:100vh;padding:0 var(--page-gutter);flex-direction:column;display:flex}.Shell-module__CMZqma__headerSpace{height:var(--header-space);flex-shrink:0}.Shell-module__CMZqma__header{width:calc(100% - var(--page-gutter) * 2);min-height:var(--header-space);border:1px solid #0000;border-bottom-color:var(--border-strong);z-index:30;align-items:center;gap:24px;margin:0 auto;transition:top .25s,width .25s,min-height .25s,padding .25s,border-radius .25s,background-color .25s;display:flex;position:fixed;top:0;left:0;right:0}.Shell-module__CMZqma__floating{border-color:var(--border);background-color:#0000;background-image:var(--paper-floating-texture);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background-size:256px 256px;border-radius:999px;min-height:64px;padding:0 20px;top:12px;box-shadow:0 6px 24px #302a2008}.Shell-module__CMZqma__brand{color:var(--text);font-family:var(--font-mono);letter-spacing:-1px;flex-shrink:0;align-items:center;gap:10px;font-size:24px;font-style:italic;line-height:1.15;display:flex}.Shell-module__CMZqma__brand small{color:var(--muted);font-family:var(--font-ui);letter-spacing:1.5px;margin-top:4px;font-size:8px;font-style:normal;display:block}.Shell-module__CMZqma__floating .Shell-module__CMZqma__brand small{display:none}.Shell-module__CMZqma__mark{background:url(/icon.svg?v=folded-p) 50%/contain no-repeat;flex-shrink:0;width:28px;height:28px;display:block}.Shell-module__CMZqma__navigation{margin-left:auto}.Shell-module__CMZqma__nav{align-items:center;gap:6px;display:flex}.Shell-module__CMZqma__navItem{min-height:40px;color:var(--secondary);white-space:nowrap;font-size:14px;line-height:1.5;font-family:var(--font-display);border:1px solid #0000;border-radius:999px;align-items:center;padding:8px 14px;transition:background .16s,border-color .16s;display:inline-flex}.Shell-module__CMZqma__navItem:hover{color:var(--text);background:var(--surface)}.Shell-module__CMZqma__navItem.Shell-module__CMZqma__active{border-color:var(--border-strong);color:var(--text);background:var(--surface)}.Shell-module__CMZqma__headerNote{font-family:var(--font-ja);color:var(--muted);white-space:nowrap;margin-left:auto;font-size:12px}.Shell-module__CMZqma__desktopLanguage{flex-shrink:0;max-width:180px;margin-left:auto}.Shell-module__CMZqma__mobileLanguage{display:none}.Shell-module__CMZqma__languageControl{border:1px solid var(--border-strong);color:var(--text);background:var(--surface);border-radius:999px;align-items:center;gap:7px;padding:0 12px;display:flex}.Shell-module__CMZqma__languageControl select{width:auto;min-width:0;color:inherit;font:inherit;background:0 0;border:0;padding:0;font-size:13px}.Shell-module__CMZqma__languageControl select:focus{outline:none}.Shell-module__CMZqma__desktopLanguage .Shell-module__CMZqma__languageControl select{min-height:38px}.Shell-module__CMZqma__languageControl:has(select:focus-visible){border-color:var(--focus);outline:2px solid var(--focus);outline-offset:-2px}.Shell-module__CMZqma__languageReason{color:var(--muted);margin-top:4px;font-size:10px;line-height:1.4;display:block}@media (max-width:1100px) and (min-width:901px){.Shell-module__CMZqma__header{gap:12px}.Shell-module__CMZqma__navItem{padding-inline:9px;font-size:14px}.Shell-module__CMZqma__brand small{letter-spacing:.5px;max-width:160px}}@media (max-width:900px){.Shell-module__CMZqma__desktopLanguage{display:none}.Shell-module__CMZqma__mobileLanguage{padding:8px 16px;display:block}.Shell-module__CMZqma__languageControl{width:fit-content}}.Shell-module__CMZqma__main{flex:1;width:100%;min-width:0;margin:0 auto;padding:44px 0 56px;scroll-margin-top:92px}.Shell-module__CMZqma__main:focus{outline:none}.Shell-module__CMZqma__footer{width:100%;margin:0 auto}.Shell-module__CMZqma__app:has([data-practice-input]) .Shell-module__CMZqma__footerScene{display:none}.Shell-module__CMZqma__app:has([data-mobile-practice]){--page-gutter:12px;min-height:0}:is(.Shell-module__CMZqma__app:has([data-mobile-practice]) .Shell-module__CMZqma__header,.Shell-module__CMZqma__app:has([data-mobile-practice]) .Shell-module__CMZqma__headerSpace,.Shell-module__CMZqma__app:has([data-mobile-practice]) .Shell-module__CMZqma__footer){display:none}.Shell-module__CMZqma__app:has([data-mobile-practice]) .Shell-module__CMZqma__main{padding:0}.Shell-module__CMZqma__footerMeta{width:100%;color:var(--muted);justify-content:space-between;gap:16px;margin:0 auto;padding:26px 0;font-size:11px;display:flex}.Shell-module__CMZqma__footerBrand{letter-spacing:.5px}.Shell-module__CMZqma__footerBrand span{margin:0 8px}.Shell-module__CMZqma__repositoryLink{color:inherit;white-space:nowrap;align-self:flex-start}.Shell-module__CMZqma__repositoryLink:hover,.Shell-module__CMZqma__repositoryLink:focus-visible{color:var(--text);text-underline-offset:4px;text-decoration:underline}.Shell-module__CMZqma__local{align-items:center;gap:8px;display:flex}.Shell-module__CMZqma__local i{background:var(--success);border-radius:50%;width:5px;height:5px}.Shell-module__CMZqma__menuButton{display:none}.Shell-module__CMZqma__skip{background:var(--primary);color:var(--on-primary);z-index:40;border-radius:6px;padding:10px 18px;position:fixed;top:8px;left:20px;transform:translateY(-160%)}.Shell-module__CMZqma__skip:focus{transform:translateY(0)}@media (max-width:1200px){.Shell-module__CMZqma__app{--page-gutter:32px}}@media (max-width:1180px){.Shell-module__CMZqma__headerNote{display:none}.Shell-module__CMZqma__navItem{padding-inline:10px}.Shell-module__CMZqma__header{gap:16px}.Shell-module__CMZqma__floating{padding-inline:20px}}@media (max-width:900px){.Shell-module__CMZqma__app{--header-space:76px}.Shell-module__CMZqma__header{flex-wrap:wrap;justify-content:space-between;gap:0}.Shell-module__CMZqma__floating{padding-inline:18px}.Shell-module__CMZqma__navigation{margin-left:0}.Shell-module__CMZqma__menuButton{min-height:44px;font-size:14px;font-family:var(--font-display);align-items:center;gap:10px;padding:9px 14px;display:flex}.Shell-module__CMZqma__menuIcon{flex-direction:column;justify-content:center;gap:5px;width:14px;height:14px;display:flex}.Shell-module__CMZqma__menuIcon i{background:currentColor;width:14px;height:1px;transition:transform .16s}.Shell-module__CMZqma__menuIconOpen i:first-child{transform:translateY(3px)rotate(45deg)}.Shell-module__CMZqma__menuIconOpen i:last-child{transform:translateY(-3px)rotate(-45deg)}.Shell-module__CMZqma__nav{display:none}.Shell-module__CMZqma__navOpen{z-index:20;border:1px solid var(--border-strong);background:var(--surface-raised);background-image:var(--paper-raised-texture);box-shadow:var(--shadow);overscroll-behavior:contain;background-size:256px 256px;border-radius:12px;flex-direction:column;align-items:stretch;gap:6px;max-height:calc(100dvh - 120px);padding:12px;display:flex;position:absolute;top:calc(100% + 10px);left:0;right:0;overflow-y:auto}.Shell-module__CMZqma__navItem{border-radius:6px;min-height:44px;padding:12px 16px}.Shell-module__CMZqma__main{padding-top:36px}}@media (max-width:700px){.Shell-module__CMZqma__app{--page-gutter:24px}.Shell-module__CMZqma__floating{min-height:60px;padding-inline:14px}.Shell-module__CMZqma__brand{gap:9px;font-size:22px}.Shell-module__CMZqma__brand small{font-size:8px}.Shell-module__CMZqma__main{padding:30px 0 40px}.Shell-module__CMZqma__footerMeta{flex-direction:column;gap:8px;padding:22px 0;font-size:10px}}@media (min-width:701px){.Shell-module__CMZqma__main:has([data-continuous-practice]){padding:12px 0 16px}}@media (max-width:360px){.Shell-module__CMZqma__header{column-gap:8px}.Shell-module__CMZqma__brand{gap:8px;font-size:19px}}@media (prefers-reduced-motion:reduce){.Shell-module__CMZqma__header,.Shell-module__CMZqma__navItem,.Shell-module__CMZqma__menuIcon i{transition:none}}
:root{--canvas:#f4f1eb;--surface:#f4f1eb;--surface-raised:#fffdf8;--surface-muted:#edeae1;--text:#111;--secondary:#514e48;--muted:#716c62;--primary:#20251f;--primary-hover:#363d32;--on-primary:#fffdf8;--accent:#ac481e;--accent-soft:#f4e7dc;--blue:#1e5fce;--soft:#e9eee6;--success:#235c34;--success-soft:#e8eee4;--danger:#ad3434;--danger-soft:#f7e9e5;--border:#d7d2c8;--border-strong:#b2ac9f;--focus:#1e5fce;--shadow:0 14px 48px #302a2012;--paper-art-texture:url(/paper-grain.png);--paper-canvas-texture:url(/paper-canvas.png);--paper-soft-texture:url(/paper-soft.png);--paper-muted-texture:url(/paper-muted.png);--paper-raised-texture:url(/paper-raised.png);--paper-success-texture:url(/paper-success.png);--paper-accent-texture:url(/paper-accent.png);--paper-floating-texture:url(/paper-floating.png);--art-orange:#ed5a14;--art-yellow:#d99d21;--art-pink:#f29fc8;--art-purple:#7a42b8;--art-sky:#5692f0;--font-display:"Songti SC", "STSong", "SimSun", serif;--font-ja:"Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}body{background-color:var(--canvas);background-image:var(--paper-canvas-texture);color:var(--text);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;margin:0;font-size:14px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-underline-offset:4px;text-decoration-thickness:1px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button,input,select,textarea{border:1px solid var(--border-strong)}button{color:var(--secondary);background:0 0;border-radius:999px;padding:10px 18px;transition:background .16s,border-color .16s,color .16s}button:hover:not(:disabled){border-color:var(--text);background:var(--surface-muted);color:var(--text)}input,select,textarea{background:var(--surface-raised);color:var(--text);border-radius:6px;min-width:0;max-width:100%;min-height:44px;padding:11px 13px}textarea{resize:vertical}input[type=checkbox],input[type=radio]{accent-color:var(--primary);flex-shrink:0;width:17px;height:17px;min-height:auto}input:focus,textarea:focus,select:focus{outline:2px solid var(--focus);outline-offset:2px;border-color:var(--focus)}:focus-visible{outline:2px solid var(--focus);outline-offset:4px}::selection{background:var(--soft);color:var(--text)}h1,h2,h3,p{margin-top:0}h1,h2{font-family:var(--font-display);font-weight:700}h1{letter-spacing:-2.2px;overflow-wrap:anywhere;margin-bottom:14px;font-size:clamp(44px,5vw,72px);line-height:1.2}h2{margin-bottom:18px;font-size:26px;line-height:1.45}h3{font-size:15px}label{color:var(--secondary)}.page-heading{justify-content:space-between;align-items:center;gap:24px;min-width:0;margin-bottom:36px;display:flex}.page-heading>div{min-width:0}.eyebrow{font-family:var(--font-mono);letter-spacing:1.4px;color:var(--accent);margin-bottom:16px;font-size:11px;font-style:italic}.subtitle{color:var(--secondary);font-family:var(--font-display);margin:0;font-size:18px;line-height:1.85}.panel{background-color:var(--surface);background-image:var(--paper-canvas-texture);border:1px solid var(--border);border-radius:12px;min-width:0}.pad{padding:30px}.primary{background:var(--primary);border:1px solid var(--primary);color:var(--on-primary);border-radius:999px;justify-content:center;align-items:center;gap:9px;padding:12px 24px;font-weight:500;display:inline-flex}.primary:hover:not(:disabled){color:var(--on-primary);background:var(--primary-hover);border-color:var(--primary-hover)}.secondary-link{color:var(--text);border:1px solid var(--border-strong);border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:13px;display:inline-flex}.secondary-link:hover{background:var(--surface);border-color:var(--text)}.pill{background:var(--surface-muted);color:var(--secondary);border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-size:11px;display:inline-block}.muted{color:var(--muted)}.error,.success,.notice{overflow-wrap:anywhere;border-radius:8px;padding:14px 18px;font-size:13px;line-height:1.8}.error{color:var(--danger);background:var(--danger-soft);border:1px solid var(--danger);margin:16px 0}.success{color:var(--success);background:var(--success-soft);border:1px solid var(--success);margin:16px 0}.notice{color:var(--secondary);background:var(--surface-muted);border:1px solid var(--border)}.field{flex-direction:column;gap:8px;margin-bottom:24px;display:flex}.field>label{font-size:13px;font-weight:600}.field small{color:var(--muted);line-height:1.8}.flex{align-items:center;gap:12px;display:flex}.spread{justify-content:space-between;align-items:center;gap:12px;display:flex}.wrap{flex-wrap:wrap}.stack{flex-direction:column;gap:24px;min-width:0;display:flex}.divider{border:0;border-top:1px solid var(--border);margin:24px 0}.empty{text-align:center;color:var(--muted);padding:64px 24px}.empty h2{color:var(--text);margin-top:22px}.empty>svg{color:var(--accent)}.text-button{color:var(--accent);background:0 0;border:0;border-radius:4px;padding:4px 0;font-size:12px}.danger-button{color:var(--danger)}.table-wrap{overflow:auto}table{border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums;width:100%}th{color:var(--muted);background:var(--surface-muted);font-size:12px;font-weight:500}th,td{border-bottom:1px solid var(--border);white-space:nowrap;padding:18px 22px}td{font-size:13px}tr:last-child td{border-bottom:0}.check-label{align-items:center;gap:8px;font-size:12px;display:flex}.tagline{color:var(--muted);font-size:12px;line-height:1.8}.big-number{font-family:var(--font-mono);letter-spacing:-1.5px;font-variant-numeric:tabular-nums;font-size:36px;font-weight:400}dialog{color:var(--text);background-color:var(--surface);background-image:var(--paper-canvas-texture);border:1px solid var(--border-strong);box-shadow:var(--shadow);border-radius:14px;width:480px;max-width:calc(100vw - 32px);padding:28px}dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#24221d66}@media (max-width:700px){h1{letter-spacing:-1px;font-size:44px}h2{font-size:21px}.page-heading{flex-wrap:wrap;align-items:flex-start;gap:20px;margin-bottom:28px}.eyebrow{font-size:10px}.subtitle{font-size:16px}.pad{padding:22px}input:not([type=checkbox]):not([type=radio]),select,textarea{font-size:16px}.secondary-link{padding:10px 15px;font-size:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}