@font-face{font-family:PracticeKai;src:url('/fonts/kai.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#263c31;background:#f5f5ee;--green:#315b47;--muted:#7a847b;--line:#dee3d7;--cell:64px;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,select{font:inherit;color:inherit}button,select,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #be8d4e;outline-offset:3px}button:disabled{opacity:.3;cursor:default}button{min-height:44px}button:hover:not(:disabled){filter:brightness(.95)}.topbar{height:98px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 4.5%;background:#fafaf5}.brand{display:flex;align-items:center;gap:14px;font-size:23px;font-weight:650;text-decoration:none;color:inherit;letter-spacing:2px}.brand-mark{font-family:PracticeKai,serif;background:var(--green);color:#fff9e9;border-radius:10px;font-size:30px;width:48px;height:48px;display:grid;place-items:center}.brand small{display:block;font-size:11px;letter-spacing:3px;color:var(--muted);font-weight:400;margin-top:5px}.top-note{font-family:PracticeKai,serif;color:#788775;font-size:19px;letter-spacing:3px}.plain{border:1px solid #cbd5c9;border-radius:7px;background:transparent;padding:0 17px;font-size:13px}.workspace{max-width:1440px;margin:auto;display:grid;grid-template-columns:278px minmax(0,1fr);gap:48px;padding:42px 4.5% 20px}.date-panel{position:sticky;top:28px;align-self:start;padding-top:4px}.sidebar-heading{display:flex;justify-content:space-between;align-items:center}.eyebrow{font-size:12px;letter-spacing:2px;color:#71806f}.tiny{font-size:10px;color:#92988f;letter-spacing:1px}.month-heading{display:flex;align-items:center;justify-content:space-between;margin:25px 0 17px}.month-heading label{text-align:center}.month-heading select{border:0;background:transparent;font-family:PracticeKai,serif;font-size:27px;cursor:pointer;padding:2px 8px}.month-label{display:block;font-size:10px;letter-spacing:3px;color:#959b90;margin-top:6px}.icon-button{border:1px solid var(--line);background:transparent;font-size:26px;border-radius:50%;width:38px;height:38px;min-height:38px;line-height:1}.calendar{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px}.calendar button{border:0;background:transparent;aspect-ratio:1;min-height:34px;border-radius:7px;font-size:13px;padding:0;position:relative}.calendar button.active{background:var(--green);color:white;box-shadow:0 3px 9px #315b4725}.calendar button.is-today:after{content:"";position:absolute;bottom:3px;left:calc(50% - 2px);width:4px;height:4px;border-radius:50%;background:#b88b4b}.today-button{border:1px solid #d3dccf;background:transparent;width:100%;border-radius:6px;font-size:12px;margin:22px 0 0;letter-spacing:2px}.sidebar-foot{margin-top:44px;border-top:1px solid var(--line);padding-top:27px;display:flex;gap:15px;align-items:center}.sidebar-foot p{font-size:12px;line-height:2;color:#92998c;margin:0}.small-grid{width:37px;height:37px;display:grid;place-items:center;border:1px solid #bac6b6;font-family:PracticeKai,serif;font-size:24px;color:#98ab94}main{min-width:0}.lesson-heading{display:flex;align-items:center;justify-content:space-between;margin:0 0 27px}.lesson-heading h1{font-family:PracticeKai,serif;font-weight:400;font-size:44px;letter-spacing:3px;margin:12px 0 8px}.lesson-heading p{margin:0;color:#7b8578;font-size:13px;letter-spacing:2px}.page-count{color:#9ba491;display:flex;gap:8px;align-items:baseline;font-size:12px}.page-count strong{font-size:38px;font-weight:300;color:#75856d;font-family:Georgia,serif}.toolbar{display:flex;align-items:center;gap:20px;margin-bottom:18px;flex-wrap:wrap}.segmented{display:flex;background:#e7ebe1;padding:4px;border-radius:8px}.segmented button{border:0;background:transparent;border-radius:5px;padding:0 18px;font-size:12px;min-height:34px}.segmented button[aria-pressed=true]{background:#fffef8;color:var(--green);box-shadow:0 1px 4px #00000009}.size-control{display:flex;align-items:center;gap:8px;font-size:12px;color:#7e8779}.size-control button{border:0;background:transparent;font-size:16px;padding:0 7px}.size-control output{font-size:12px;color:#3c5542;min-width:26px;text-align:center}.original-button{margin-left:auto;background:transparent;border:0;font-size:12px;color:#6e806b;padding:0}.paper{background:#fffef8;border:1px solid #e2e4d9;border-radius:10px;box-shadow:0 5px 24px #31432f04;padding:30px 30px 18px;min-height:440px}.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:24px}.section-number{font-family:Georgia,serif;font-style:italic;font-size:16px;color:#9eac91}.section-heading h2{font-size:15px;font-weight:500;letter-spacing:2px;margin:0}.section-hint{margin-left:auto;font-size:11px;color:#a4a796;letter-spacing:1px}.words{display:flex;gap:20px 24px;flex-wrap:wrap}.word{display:flex;flex-wrap:wrap;max-width:100%}.cells{display:flex;flex-wrap:wrap;gap:0;justify-content:start;margin-bottom:20px;padding-top:1px;padding-left:1px}.cell{width:var(--cell);height:var(--cell);font-family:PracticeKai,KaiTi,STKaiti,serif;font-size:calc(var(--cell)*.70);font-weight:400;display:flex;align-items:center;justify-content:center;position:relative;line-height:1;border:1px solid #cad4bf;margin-top:-1px;margin-left:-1px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M0 0L100 100M100 0L0 100M50 0V100M0 50H100' fill='none' stroke='%23dde3d5' stroke-width='.8' stroke-dasharray='3 3'/%3E%3C/svg%3E");background-size:100% 100%;color:#283c2f}.cell span{position:relative;z-index:1}.paper-divider{border-top:1px solid #e8eadf;margin:30px 0}.paper-end{display:flex;align-items:center;justify-content:center;gap:15px;color:#afb4a4;font-size:10px;letter-spacing:2px;margin:29px 0 5px}.paper-end span{width:35px;height:1px;background:#dde1d3}.reading .cells{display:block;font-family:PracticeKai,serif;font-size:calc(var(--cell)*.60);line-height:1.95;letter-spacing:2px;text-indent:2em}.reading .cell{display:inline;border:0;background:none;font:inherit;margin:0;width:auto;height:auto}.reading .word .cell{border:0;background:none}.lesson-nav{display:flex;justify-content:space-between;align-items:center;margin:20px 0}.lesson-nav button{background:transparent;border:1px solid #d5dece;border-radius:6px;padding:0 20px;font-size:13px}.lesson-nav span{font-size:12px;color:#8b9583}footer{text-align:center;line-height:2;font-size:10px;color:#9aa08f;margin-top:34px}footer span{font-size:9px}footer a{color:inherit}dialog{border:1px solid #ddd;border-radius:12px;max-width:1100px;width:94vw;padding:18px;background:#fffef8}dialog::backdrop{background:#12281fc0}.dialog-bar{display:flex;align-items:center;justify-content:space-between}.dialog-bar h2{font-size:17px;margin:0}.original-scroll{overflow:auto;max-height:75vh}.original-scroll img{width:100%;display:block}dialog p{font-size:12px;color:#7e8779;margin-bottom:0}#loading{padding:60px;text-align:center;color:#7b8578}
@media(min-width:1400px){.workspace{gap:64px}.paper{padding:36px 38px 22px}}
@media(max-width:1000px){.workspace{grid-template-columns:220px minmax(0,1fr);gap:24px;padding:30px 3%}.paper{padding:24px 20px}.calendar{gap:2px}.toolbar{gap:10px}.segmented button{padding:0 12px}.section-hint{font-size:10px}.topbar{padding:0 3%}.top-note{font-size:16px}}
@media(max-width:700px){:root{--cell:56px}.topbar{height:78px;padding:0 20px}.brand{font-size:20px;gap:10px}.brand-mark{width:40px;height:40px;font-size:26px}.brand small{font-size:9px}.top-note{display:none}.plain{font-size:11px;padding:0 12px;min-height:36px}.workspace{display:block;padding:22px 16px}.date-panel{position:static;padding:0 2px 23px;margin-bottom:25px;border-bottom:1px solid var(--line)}.sidebar-heading{margin-bottom:6px}.month-heading{margin:8px 0}.month-heading select{font-size:23px}.month-label,.sidebar-foot{display:none}.calendar{gap:3px}.calendar button{aspect-ratio:auto;height:37px;font-size:14px;min-height:37px}.today-button{margin-top:12px;min-height:36px}.lesson-heading{margin:0 3px 18px}.lesson-heading h1{font-size:36px;margin:8px 0}.lesson-heading p{font-size:11px}.page-count strong{font-size:30px}.toolbar{gap:8px;margin-bottom:14px}.size-control{gap:2px}.segmented button{padding:0 12px}.original-button{font-size:11px}.paper{padding:22px 15px 15px;border-radius:8px}.section-heading{gap:8px;margin-bottom:20px}.section-heading h2{font-size:14px}.section-hint{font-size:10px;letter-spacing:0}.words{gap:18px}.paper-divider{margin:26px 0}.lesson-nav button{padding:0 17px}.paper-end{font-size:9px;letter-spacing:1px}.paper-end span{width:22px}}
@media print{body{background:white}.topbar,.date-panel,.toolbar,.lesson-nav,footer,.page-count,dialog{display:none!important}.workspace{display:block;padding:0}.paper{border:0;box-shadow:none;padding:0}.lesson-heading h1{font-size:28px}.lesson-heading{margin:0 0 20px}.cell{print-color-adjust:exact;-webkit-print-color-adjust:exact}.paper-end{display:none}.cells,.word{break-inside:avoid}:root{--cell:45px!important}}

.source-note{font-size:12px;color:#8c7654;line-height:1.8;margin-top:20px}

.cell-group{display:inline-flex;flex-wrap:wrap;max-width:100%}.cell{flex-shrink:0}.reading .cells .cell-group{display:inline}.reading .word{font-family:PracticeKai,serif;font-size:calc(var(--cell)*.7);line-height:1.7}.reading .word .cell{font:inherit;display:inline;width:auto;height:auto}.reading .word .cell-group{display:inline}

/* Keep the date picker collapsed in both portrait and landscape layouts. */
.workspace{display:block}
.date-panel{position:static;padding:0 2px 14px;margin-bottom:20px;border-bottom:1px solid var(--line)}
.sidebar-heading{margin-bottom:0}
.date-panel .tiny,.sidebar-foot{display:none}
#toggle-calendar{display:block;border:0;background:#e7ebe1;border-radius:6px;padding:0 12px;font-size:12px;min-height:38px}
#calendar-body{max-width:360px;margin-left:auto}
#calendar-body[hidden]{display:none}
.calendar button{aspect-ratio:auto;min-height:40px}