@charset "UTF-8";
:root{--paper:#f7f4ec;--paper-deep:#efebe0;--ink:#283c34;--muted:#7b8276;--jade:#38594a;--jade-pale:#e6ede5;--cinnabar:#a24c3c;--line:#dcded1;--serif:"Songti SC","STSong","Noto Serif CJK SC",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;--board-share:58%}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.6 var(--sans);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button{border:0;background:none}button:disabled{cursor:default;color:#9a9c91;background-color:#edece5;box-shadow:none}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid #a76d4a;outline-offset:4px}button,select{transition:background-color .16s,color .16s,border-color .16s}a{color:var(--jade);text-decoration:none}a:hover{text-decoration:underline}svg{display:block}button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}button[hidden],[hidden]{display:none!important}
.app-header{height:84px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:rgba(250,248,241,.96);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}.brand:hover{text-decoration:none}.brand img{object-fit:contain}.brand strong{display:block;font:600 29px/1.2 var(--serif);letter-spacing:6px}.brand small{display:block;font-size:10px;letter-spacing:3px;color:var(--muted);margin-top:5px}.book-heading{display:flex;align-items:center;gap:20px;font:500 19px var(--serif);letter-spacing:2px}.eyebrow{font:11px var(--sans);letter-spacing:2px;color:var(--muted);border-right:1px solid #d1d5c8;padding-right:20px}.header-actions{display:flex;align-items:center;gap:12px}.local-badge{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px;letter-spacing:1px;margin-right:10px}.local-badge i{width:5px;height:5px;border-radius:50%;background:#6f8a67}.icon-button{width:36px;height:36px;border:1px solid transparent;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#536252}.icon-button:hover{background:#e9ece2}.header-actions .icon-button{border-color:#d8ddcf;width:34px;height:34px}.header-actions .icon-button svg{width:18px;height:18px}.workspace{display:grid;grid-template-columns:minmax(0,var(--board-share)) 8px minmax(0,1fr);height:calc(100dvh - 114px);min-height:560px}.board-pane{display:flex;flex-direction:column;min-height:0;padding:22px 34px 12px;background:radial-gradient(ellipse at 35% 30%,#f2f2e7 0,#e9ede3 70%,#e4e9dd 100%)}.board-top{display:flex;align-items:center;justify-content:space-between;margin:0 auto 5px;width:100%;max-width:690px}.tiny-label{font-size:10px;letter-spacing:2px;color:var(--muted)}h1{font:500 20px/1.5 var(--serif);margin:3px 0 0;letter-spacing:1px}.quiet-button{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#66705e;border-radius:6px;padding:7px 9px}.quiet-button:hover{background:#dfe5d8}.quiet-button svg{width:17px;height:17px}.board-stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:0 6px}.board-shell{height:100%;max-height:800px;max-width:100%;aspect-ratio:560/620;filter:drop-shadow(0 14px 14px #34443521)}#board{height:100%;width:100%;overflow:visible;touch-action:manipulation}#board .piece{cursor:pointer;transition:filter .15s}#board .piece:hover{filter:brightness(1.06)}#board .piece:focus-visible{outline:0}#board .piece:focus-visible circle:first-of-type{stroke:#a24c3c;stroke-width:4}#board .square{cursor:pointer}#board .square:focus-visible{outline:0;stroke:#799b82;stroke-width:2}#board text{user-select:none;pointer-events:none}#board .piece text{font:600 33px var(--serif)}.position-meta{display:flex;justify-content:center;align-items:center;gap:19px;color:#687361;font-size:11px;margin:1px 0 10px;min-height:19px}.position-meta>span:first-child{display:flex;align-items:center;gap:6px}.side-dot{display:inline-block;width:7px;height:7px;border-radius:50%}.side-dot.black{background:#31443c}.side-dot.red{background:#a24c3c}#board-state{color:#8c8f7e}.playback-bar{display:flex;align-items:center;justify-content:center;gap:16px;background:#f7f7ee99;border:1px solid #d4dbcb;border-radius:10px;padding:7px 16px;width:fit-content;max-width:100%;margin:0 auto;box-shadow:0 2px 5px #41523b04}.playback-bar .icon-button{width:32px;height:32px}.playback-bar .icon-button svg{width:18px;height:18px}.play-button{display:flex;align-items:center;justify-content:center;background:var(--jade);color:#f8f5e8;width:40px;height:40px;border-radius:50%;box-shadow:0 3px 6px #38594a24}.play-button:hover{background:#264737}.play-button svg{width:19px;height:19px;fill:currentColor;stroke-width:1}.playback-divider{height:22px;width:1px;background:#d5daca;margin:0 1px}.board-foot{display:flex;justify-content:space-between;align-items:center;color:#8a907e;font-size:10px;margin:12px auto 0;width:100%;max-width:690px;gap:8px}.text-button{color:var(--jade);font-size:11px;padding:3px 1px;border-bottom:1px solid #b8c5b1}.text-button:hover{color:var(--cinnabar)}.splitter{background:#e1e4d8;cursor:col-resize;display:flex;align-items:center;justify-content:center;outline-offset:-2px}.splitter:after{content:"";width:2px;height:30px;border-radius:2px;background:#b4bfac}.splitter:hover{background:#ccd6c5}.reading-pane{min-width:0;display:flex;flex-direction:column;background:var(--paper)}.reader-tabs{display:flex;gap:25px;height:59px;flex-shrink:0;align-items:stretch;padding:0 30px;border-bottom:1px solid var(--line)}.reader-tabs button{font-size:13px;color:#7d8375;padding:0 0 1px;position:relative;white-space:nowrap}.reader-tabs button[aria-selected=true]{color:var(--jade);font-weight:600}.reader-tabs button[aria-selected=true]:after{content:"";height:2px;position:absolute;bottom:-1px;left:0;right:0;background:var(--jade)}.engine-dot{display:inline-block;width:4px;height:4px;margin:0 0 2px 6px;background:#b9b9aa;border-radius:50%}.engine-dot.ready{background:#658467}.reader-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#c7cbbd transparent;padding:29px 32px 40px}.chapter-eyebrow{display:flex;gap:12px;align-items:center;color:#7f8476;font-size:10px;letter-spacing:1px}.chapter-eyebrow span:first-child{border:1px solid #d1d7c6;padding:2px 7px;color:#5b735d;border-radius:3px}.lesson-heading{display:flex;gap:15px;align-items:center;margin:24px 0 12px}.lesson-number{font:26px var(--serif);color:var(--cinnabar);border:1px solid #b9886a80;width:42px;height:47px;display:flex;align-items:center;justify-content:center;border-radius:1px 7px 1px 5px;flex-shrink:0}h2{font:600 30px/1.3 var(--serif);letter-spacing:2px;margin:4px 0 0}.reading-lead{font:13px/1.9 var(--serif);color:#8a8979;margin:14px 0 23px}.opening-block{background:#efeede;padding:15px 15px 12px;border:1px solid #e4e4d5;border-radius:5px}.section-label{font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:space-between;width:100%;padding:0}.section-label span{font-size:10px;font-weight:400;color:#8a8f7c;display:flex;align-items:center;gap:4px}.section-label svg{width:12px;height:12px}.move-grid{margin-top:10px;display:grid;grid-template-columns:24px 1fr 1fr;gap:3px 8px;align-items:center}.move-number{font:11px var(--serif);color:#949780;text-align:center}.move-chip{font:14px/1.7 var(--serif);padding:3px 6px;text-align:left;border-radius:4px;white-space:nowrap;letter-spacing:.4px;display:inline-flex;align-items:center;gap:4px;color:#354438}.move-chip.red{color:#994e3d}.move-chip:hover{background:#e0e5d4}.move-chip.active{background:#38594a;color:#fff9e9}.move-chip .annotation{font:8px var(--sans);color:#9aab84}.diagram-caption{display:flex;align-items:center;gap:14px;padding:22px 0}.stamp{writing-mode:vertical-rl;letter-spacing:2px;border-top:1px solid #af8464;border-bottom:1px solid #af8464;color:#9b7058;font:13px/1.7 var(--serif);padding:5px 0}.diagram-caption p{font:14px/1.85 var(--serif);color:#5f6e5b;margin:0}.branch-picker{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:20px}.branch-card{display:flex;align-items:center;gap:11px;padding:12px;border:1px solid #d9ddce;border-radius:5px;text-align:left;background:#f4f2e8}.branch-card .branch-symbol{font:20px var(--serif);color:#959b88}.branch-card strong{font:600 16px var(--serif);display:block}.branch-card small{display:block;color:#909380;font-size:9px;margin-top:4px}.branch-card.selected{background:#e6ecdf;border-color:#8fa38a}.branch-card.selected .branch-symbol{color:var(--jade)}.branch-card:hover{border-color:#8fa38a}.line-header{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:22px 0 9px}.line-header h3{font:600 20px var(--serif);margin:0}.line-header .text-button{white-space:nowrap}.author-text{font:15px/1.95 var(--serif);color:#455242;margin:9px 0 15px;text-align:justify}.line-moves{padding:4px 0 5px}.line-moves .move-grid{grid-template-columns:23px 1fr 1fr;margin-top:2px;gap:3px 5px}.line-moves .move-chip{padding:5px 5px;font-size:15px}.commentary{border-left:2px solid #b9c5ab;margin:10px 0 13px;padding:2px 0 2px 12px}.commentary p{font:14px/1.95 var(--serif);margin:0;color:#616c57}.commentary .comment-anchor{font-size:10px;color:#8d957f;display:block;margin-bottom:4px}.variation-link{display:flex;align-items:center;gap:8px;background:#efede1;border:1px solid #dedfd0;border-radius:4px;padding:9px 12px;margin:8px 0 12px;font-size:12px;width:100%;text-align:left;color:#6f725d}.variation-link svg{width:15px;height:15px}.variation-link:hover{background:#e4e9dc}.variation-link .branch-tag{font-size:9px;color:#9d5b44;margin-left:auto;white-space:nowrap}.outcome{background:#e9ede2;border-top:1px solid #d4ddc8;border-bottom:1px solid #d4ddc8;padding:10px 13px;font:15px var(--serif);color:#4b654c;margin:17px 0}.author-summary{border-top:1px solid #dcded0;margin-top:28px;padding-top:20px}.author-summary p{font:14px/1.95 var(--serif);color:#727963}.reading-source{font-size:10px;line-height:1.9;color:#999b8a;margin:25px 0 17px}.outline-button{display:flex;align-items:center;justify-content:center;gap:7px;padding:10px 14px;border:1px solid #cbd3c1;border-radius:5px;background:#f6f5ec;color:#53694f;font-size:12px;min-height:39px}.outline-button:hover{background:#e9eddf;border-color:#a4b299}.full-width{width:100%}.primary-button{display:flex;align-items:center;justify-content:center;gap:8px;color:#f7f4e9;background:var(--jade);padding:12px 18px;border-radius:5px;font-size:13px}.primary-button:hover{background:#294b3a}.primary-button svg{width:18px;height:18px}.panel-heading{margin:0 0 24px}.panel-heading h2{font-size:28px;margin-top:8px}.panel-heading p{font:14px/1.8 var(--serif);color:#818572;margin:12px 0}.engine-status{display:flex;align-items:center;gap:10px;background:#eeeee2;border:1px solid #e0e3d5;border-radius:5px;padding:14px}.status-orb{width:8px;height:8px;border-radius:50%;background:#aea68b;box-shadow:0 0 0 4px #aea68b17;flex-shrink:0}.status-orb.ready{background:#658b68;box-shadow:0 0 0 4px #658b6817}.engine-status strong{display:block;font-size:12px}.engine-status small{display:block;font-size:10px;color:#8d927f;margin-top:4px}.version-tag{font-size:9px;letter-spacing:1px;color:#8d967f;margin-left:auto}.analysis-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 16px}.analysis-options label{font-size:11px;color:#808772}.analysis-options select{margin-top:7px;width:100%;border:1px solid #cbd2c0;border-radius:4px;color:#4d634b;background:#f8f6ed;padding:9px;min-height:40px;font-size:12px}#cancel-button{margin-top:8px}.analysis-hint{font-size:10px;color:#8b917d;line-height:1.8;margin:11px 0 23px}.empty-state{padding:26px 0 32px;text-align:center}.empty-state svg{width:72px;height:72px;margin:auto;fill:none;stroke:#a6b29a;stroke-width:1.3}.empty-state h3{font:18px var(--serif);color:#6b7b60;margin:15px 0 10px}.empty-state p{font-size:11px;line-height:1.9;color:#929781}.analysis-card{border:1px solid #d4dcc8;border-radius:5px;background:#f1f2e7;padding:14px;margin:12px 0}.analysis-card-heading{display:flex;gap:8px;align-items:center}.analysis-card-heading strong{font:600 19px var(--serif)}.analysis-rank{font-size:10px;color:#919d84;padding-right:3px}.score-badge{margin-left:auto;font-size:12px;color:#7a513d;background:#e9e1cc;padding:3px 8px;border-radius:3px}.analysis-details{font-size:9px;display:flex;gap:10px;color:#8a947c;margin:8px 0}.pv-chips{display:flex;flex-wrap:wrap;gap:3px;margin:11px 0}.pv-chip{font:13px var(--serif);padding:4px 5px;border-radius:3px;color:#617356;background:#e7ecdd}.pv-chip:hover{background:#d4dfc7}.analysis-card .text-button{display:block;margin:9px 0 0}.compare-box{border-top:1px solid #d5dacb;margin-top:28px;padding-top:20px}.compare-box p{font:13px/1.9 var(--serif);color:#78826b}.compare-result{border-left:2px solid #9aad8b;padding:1px 0 1px 12px;margin-top:15px;font-size:12px;line-height:1.9}.compare-result strong{display:block;color:#4a6746}.error-box{border:1px solid #d9bda6;background:#f2e8db;padding:13px;color:#93563e;border-radius:5px;font-size:12px;line-height:1.8}.analysis-live{font-size:10px;color:#7c8b6b;text-align:center;padding:8px}.notes-label{display:block;font-size:12px;color:#6b7b60;margin:18px 0 9px}textarea{resize:vertical;min-height:280px;width:100%;background:#f3f0e4;border:1px solid #d5d8c7;border-radius:5px;padding:17px;font:15px/2 var(--serif);color:#43563c}textarea::placeholder{color:#a1a28e}.notes-meta{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:#909781;margin:9px 0 24px}.note-card{padding:17px;background:#eeeee1;margin-top:22px;border-radius:5px}.note-card strong{font:15px var(--serif)}.note-card p{font-size:12px;color:#889075;line-height:1.9;margin-bottom:0}.app-footer{height:30px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 32px;color:#919684;font-size:9px;letter-spacing:1px;background:#f3f1e7}.footer-dot{padding:0 7px;color:#b3b5a2}.toast{position:fixed;left:50%;bottom:46px;transform:translateX(-50%);padding:10px 20px;background:#2f4b3ff2;color:#f7f5e8;border:1px solid #8f9a7f;border-radius:6px;box-shadow:0 5px 25px #20362926;max-width:min(90vw,600px);font-size:12px;z-index:30}.toast.error{background:#86503c}
dialog{border:1px solid #d0d6c3;border-radius:12px;background:#f7f5eb;color:var(--ink);padding:38px;box-shadow:0 25px 100px #203b3233;max-height:90dvh;overflow:auto;scrollbar-width:thin}dialog::backdrop{background:#203c3159;backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:14px;top:14px;border:1px solid #d4dac8;width:30px;height:30px}.dialog-close svg{width:15px;height:15px}.about-dialog{width:550px;background:radial-gradient(ellipse at 20% 0,#fffdf5,#f3f3e7 75%)}.about-brand{text-align:center;margin-bottom:28px}.about-brand img{margin:0 auto 7px}.about-brand h2{font-size:36px;letter-spacing:8px;margin-left:8px}.about-brand p{font:14px var(--serif);letter-spacing:4px;color:#849079;margin:12px 0 0}.about-facts{display:grid;grid-template-columns:92px 1fr;gap:13px 12px;font-size:12px;line-height:1.9;margin:0}.about-facts dt{color:#8b947f}.about-facts dd{margin:0;color:#41563d}.about-facts dd span{color:#87927b;font-size:10px}.about-intro{padding:16px 18px;border:1px solid #d8deca;background:#e9eedf;border-radius:6px;font:14px/1.9 var(--serif);color:#637757;margin:23px 0}.source-facts{gap:15px 12px;font-size:11px}.about-links{display:flex;justify-content:center;gap:18px;margin:24px 0;font-size:10px}.about-links a{border-bottom:1px solid #b9c4ac}.about-note{font-size:10px;color:#8f977f;line-height:1.9;text-align:center}.about-close-button{margin:23px auto 0;min-width:108px}.contents-dialog{width:520px}.contents-dialog h2{margin-top:13px}.muted{color:#8b937d;font-size:12px}.contents-volume{margin:28px 0 12px;font:18px var(--serif);color:#52694a}.contents-chapter{font-size:12px;color:#859176;margin-bottom:15px}.contents-lesson{display:flex;align-items:center;gap:15px;background:#e8eddf;border:1px solid #b7c5a9;padding:18px;border-radius:6px;width:100%;text-align:left}.contents-lesson>span:first-child{font:24px var(--serif);color:#8c9b7c}.contents-lesson strong{font:600 17px var(--serif)}.contents-lesson small{display:block;font-size:10px;color:#849074;margin-top:7px}.ready-tag{font-size:9px;color:#74905f;margin-left:auto;white-space:nowrap}.contents-note{font-size:11px;color:#979d86;line-height:1.9;margin-top:24px}.original-dialog{width:740px}.original-dialog h2{font-size:25px;margin:12px 0 25px}.original-dialog details{border:1px solid #d7deca;border-radius:5px;padding:12px;margin-bottom:22px;font-size:12px;color:#81916f}.original-dialog details img{display:block;margin:20px auto;max-width:100%;max-height:480px}#original-text{white-space:pre-wrap;font:16px/2 var(--serif);color:#536649}.loading-notice{padding:28px;color:#8c937f;font:15px/2 var(--serif)}.study-path{display:flex;align-items:center;gap:5px;flex-wrap:wrap;font-size:10px;color:#869477;margin:7px 0 12px}.study-path button{color:#5a7851;border-bottom:1px solid #b9c7ac;padding:1px}.trial-panel{border:1px solid #d2dac5;background:#edf0e3;padding:13px;border-radius:5px;margin:12px 0}.trial-panel p{font-size:11px;color:#859575;margin:6px 0 10px}.trial-panel .move-chip{font-size:13px}.trial-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}.trial-actions button{font-size:10px}.square-last{fill:#d6a35c24;stroke:#b28a53;stroke-width:1.2}.piece-selected{stroke:#8a4335!important;stroke-width:3!important}
@media(min-width:1550px){.reader-scroll{padding:34px 45px 45px}.board-pane{padding-left:50px;padding-right:50px}.reading-lead{font-size:15px}.author-text{font-size:17px}.commentary p{font-size:16px}.line-moves .move-chip{font-size:17px}.opening-block .move-chip{font-size:16px}}
@media(max-width:1050px){.app-header{padding:0 20px}.board-pane{padding:18px 18px 12px}.reader-tabs{padding:0 20px;gap:20px}.reader-scroll{padding:24px 20px 35px}.book-heading{font-size:17px;gap:13px}.eyebrow{font-size:9px;padding-right:13px}.playback-bar{gap:8px;padding:6px 9px}.local-badge{display:none}h2{font-size:26px}.lesson-heading{gap:11px}.branch-card{padding:10px;gap:9px}.branch-card strong{font-size:15px}.branch-card small{font-size:8px}.board-foot{font-size:9px}.board-foot .text-button{font-size:10px}}
@media(max-width:760px){.app-header{height:72px;padding:0 15px}.brand img{width:43px;height:43px}.brand strong{font-size:25px}.brand small{font-size:9px;letter-spacing:2px}.book-heading .eyebrow{display:none}.book-heading{font-size:15px}.header-actions{gap:6px}.header-actions .icon-button{width:31px;height:31px}.workspace{display:flex;flex-direction:column;height:auto;min-height:0}.board-pane{height:calc(100dvh - 72px);min-height:580px;padding:15px 18px 12px}.board-top{max-width:480px}.board-shell{max-height:660px}.board-foot{max-width:480px}.splitter{display:none}.reading-pane{min-height:600px}.reader-tabs{position:sticky;top:0;z-index:4;background:var(--paper);padding:0 25px;gap:32px;height:55px}.reader-scroll{overflow:visible;padding:26px max(22px,calc((100vw - 580px)/2)) 40px}.app-footer{padding:0 15px;font-size:8px}.line-moves .move-chip{font-size:17px}.opening-block .move-chip{font-size:16px}.commentary p{font-size:16px}.author-text{font-size:17px}.about-dialog{padding:32px 26px}.about-facts{grid-template-columns:84px 1fr;gap:12px}.about-facts dd{overflow-wrap:anywhere}dialog{max-width:calc(100vw - 28px);padding:30px 25px}.book-heading{margin-left:auto;margin-right:15px}.board-stage{padding-top:5px}.board-foot{margin-top:12px}.playback-bar{gap:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Bound both panes to the viewport; SVG fits the available stage. */
.workspace{grid-template-rows:minmax(0,1fr)}
.reading-pane{min-height:0}
.board-stage{position:relative}
.board-shell{position:absolute;inset:0;width:100%;height:100%;max-height:none;aspect-ratio:auto;margin:auto}
@media(max-width:760px){.board-shell{max-height:none}}

.brand img,.about-brand img{border-radius:22%}
.playback-bar .quiet-button{white-space:nowrap}
@media(max-width:760px){.playback-bar{gap:10px}.playback-bar .quiet-button{font-size:11px}}

/* ImageGen physical wood assets; exact SVG geometry remains interactive. */
#board .wood-board-image{pointer-events:none}
#board .wood-piece-image{image-rendering:auto}
#board .selection-ring{fill:none;stroke:transparent;stroke-width:2;pointer-events:none}
#board .piece[data-selected="true"] .selection-ring{stroke:#8b3d29;stroke-width:2.3;stroke-dasharray:5 2.5}
#board .piece:focus-visible .selection-ring{stroke:#476c4e;stroke-width:2.3}
#board .piece text.carved-glyph{font:600 30px "Songti SC","STSong","Noto Serif CJK SC",serif;stroke:#44200c40;stroke-width:.35;paint-order:stroke fill;letter-spacing:0}
#board .piece-hit{stroke:none!important}
.board-shell{filter:drop-shadow(0 14px 18px #3a2b191f)}

.river-lettering{opacity:.76;mix-blend-mode:multiply;pointer-events:none}

/* Full library and source-order reading. */
.lesson-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;color:#859079;font-size:10px}.lesson-nav button{font-size:11px}.lesson-number{font-size:19px;width:48px}.source-block{margin:13px 0}.source-moves{font:15px/2.1 var(--serif);margin:9px 0;white-space:pre-wrap}.source-moves .move-chip{font-size:16px}.source-line-heading{font:600 20px var(--serif);margin:28px 0 16px;padding-top:15px;border-top:1px solid var(--line)}.source-line-heading button{text-align:left;padding:0}.author-text .move-chip{font:inherit;display:inline;padding:1px 4px;white-space:nowrap;border-bottom:1px dotted #9fac92}.source-detail{margin:10px 0;font-size:11px;color:#8a927f;border-left:1px solid #cbd3bd;padding-left:11px}.source-detail summary{cursor:pointer}.source-detail p{line-height:1.9}.source-detail h3{font:16px var(--serif)}.source-detail.correction{color:#9a785b}.active-variation{border:1px solid #c8d2ba;background:#edf0e4;padding:0 16px 16px;border-radius:6px;margin:20px 0}.catalog-search{display:block;margin-top:24px;font-size:11px;color:#819076}.catalog-search input{display:block;width:100%;margin:8px 0 14px;border:1px solid #cbd3be;background:#fcfaf1;border-radius:5px;padding:10px;color:var(--ink);font-size:13px}.catalog-filter{display:flex;align-items:center;gap:15px;color:#819076;font-size:11px}.catalog-filter select{flex:1;max-width:100%;border:1px solid #cbd3be;background:#f8f6eb;border-radius:4px;padding:8px;color:var(--ink);font-size:12px}.contents-dialog{width:620px}.contents-lesson{margin:9px 0;padding:13px;gap:12px;background:#f2f2e7;border-color:#d6ddca}.contents-lesson.current{background:#e5ecdc;border-color:#a3b493}.contents-lesson:hover{border-color:#8caa79}.contents-lesson>span:first-child{min-width:34px;font-size:20px}.contents-lesson div{min-width:0}.contents-lesson small{line-height:1.7}.contents-volume{margin-top:24px;font-size:18px}.branch-picker:empty{display:none}.original-dialog img{object-fit:contain}

/* Quiet, high-contrast corner frames for both ends of the last move. */
.last-move-markers{pointer-events:none}.last-destination-halo{fill:none;stroke:#fff7e6;stroke-width:5.2;stroke-linecap:round;stroke-linejoin:round}.last-destination{fill:none;stroke:#b83a28;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}