:root{--paper:#f7f3e9;--sheet:#fffdf6;--ink:#34483d;--muted:#7d8977;--green:#496c55;--light:#e8ecdf;--ochre:#aa8050;--line:#dedfcd;--rust:#ac694c;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;color-scheme:light}
*{box-sizing:border-box}body{margin:0;min-width:340px;background:var(--paper);color:var(--ink)}button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}button:disabled{opacity:.4;cursor:default}button:not(:disabled):hover{filter:brightness(.92)}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:3px solid #b4884f;outline-offset:4px}[hidden]{display:none!important}kbd{font:10px monospace;padding:2px 4px;border:1px solid #d4dac9;border-radius:3px;margin-left:4px}
.topbar{max-width:1460px;height:88px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 48px;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;gap:13px;font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:23px;letter-spacing:3px;font-weight:600;white-space:nowrap}.brand small{font:8px system-ui,sans-serif;letter-spacing:1.6px;margin-top:4px;display:block;color:#8d947d}.brand-mark{position:relative;display:block;width:39px;height:36px}.brand-mark i{position:absolute;display:block;width:25px;height:25px;border-radius:50%;background:#3e594b;top:0;left:0}.brand-mark i+i{top:11px;left:14px;background:#e9e5d7;border:1px solid #a7b09b;box-shadow:2px 2px 3px #46544015}.tools{display:flex;align-items:center;gap:24px;color:#7b886f;font-size:11px}.tools button{padding:8px 0}#chapters{display:flex;align-items:center;gap:16px;font-size:11px;color:#9ca18e}#chapters i{width:20px;height:1px;background:var(--line)}#chapters .active{color:var(--green);font-weight:600}#chapters .done{color:#77896a}
#app{max-width:1360px;margin:auto}.eyebrow{font-size:11px;letter-spacing:3px;color:#92977f;margin:0 0 22px}.tiny-label{font-size:10px;letter-spacing:2px;color:#969c84;margin:0 0 12px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:34px;border-radius:7px 10px 7px 9px;background:var(--green);color:#fffbed;padding:16px 24px;border:1px solid #3b5c48;font-size:15px;letter-spacing:1px;box-shadow:0 3px 0 #3b5c4812}.primary:hover{transform:translateY(-1px)}.text-button{display:block;width:max-content;border-bottom:1px solid #bbc5ac;padding:0 0 4px;font-size:12px;color:#7c8e6a;max-width:100%}
#welcome{position:relative;padding:93px 54px 35px;overflow:hidden;min-height:810px}.welcome-copy{width:45%;position:relative;z-index:1}.welcome-copy h1{font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-size:56px;line-height:1.35;letter-spacing:2px;font-weight:500;margin:0 0 23px}.welcome-copy h1 em{font-style:normal;color:var(--green)}.intro{font-size:21px;line-height:1.7;color:#697e62;letter-spacing:1px;margin:0 0 17px}.description{font-size:13px;line-height:2;color:#849074;margin:0 0 24px}.garden-art{position:absolute;top:60px;right:-15px;width:930px;aspect-ratio:3/2;background:url('assets/art/garden.png') center/contain no-repeat;mix-blend-mode:multiply;mask-image:linear-gradient(to right,transparent,#000 12%,#000 91%,transparent),linear-gradient(to bottom,transparent,#000 7%,#000 93%,transparent);mask-composite:intersect}#resume{margin-top:16px}.welcome-meta{display:flex;align-items:center;gap:13px;margin:23px 0 0;font-size:10px;letter-spacing:1px;color:#919c80}.welcome-meta i{height:3px;width:3px;background:#b3bc9c;border-radius:50%}.welcome-bottom{display:flex;justify-content:space-between;gap:40px;align-items:center;border-top:1px solid var(--line);padding-top:25px;margin-top:51px}.welcome-bottom>div>span{font-size:10px;letter-spacing:2px;color:#909a7e}.welcome-bottom>div>p{font-size:14px;color:#73886a;letter-spacing:3px;margin:14px 0 0;display:flex;gap:22px;align-items:center}.welcome-bottom i{font-size:13px;color:#b5bb9b;font-style:normal}.scope-note{font-size:11px;color:#94a080;line-height:1.9;margin:0}
#lesson{padding:29px 49px 25px}.lesson-heading{display:flex;justify-content:space-between;align-items:center;margin:0 5px 26px}.lesson-heading .eyebrow{font-size:10px;margin-bottom:10px;letter-spacing:2.5px}.lesson-heading h1{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:29px;letter-spacing:1px;font-weight:500;margin:0}.progress{font-size:10px;color:#8e9a7f;text-align:right}#progress-dots{display:flex;gap:8px;margin-top:12px}.progress-dot{width:7px;height:7px;border:1px solid #bac7aa;border-radius:50%}.progress-dot.done{background:#7d9c70;border-color:#7d9c70}.progress-dot.current{border-color:#6f905f;box-shadow:0 0 0 3px #cfdbc14d}.workspace{display:grid;grid-template-columns:minmax(0,1.46fr) minmax(330px,1fr);gap:65px;align-items:start}.board-section{width:100%;max-width:640px}.board-topline{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#8b977d;margin:0 6px 14px;letter-spacing:.6px}.player-label{display:flex;align-items:center;gap:7px}.small-stone{display:inline-block;width:13px;height:13px;border-radius:50%;background:radial-gradient(circle at 34% 24%,#63675c,#262f2a 66%);box-shadow:0 1px 2px #213b342a}.small-stone.white{background:radial-gradient(circle at 33% 23%,#fff,#ede9da 76%);border:1px solid #c9c9b6}
.board{position:relative;width:100%;aspect-ratio:1;background:radial-gradient(ellipse at 12% 10%,#f5dfa5a8,transparent 54%),repeating-linear-gradient(3deg,#b1844510 0px,#b1844510 1px,transparent 1px,transparent 23px),linear-gradient(113deg,#dfbd79,#e8cc8f 42%,#ddbb77);border:1px solid #c5a065;border-bottom:7px solid #bb955d;border-radius:10px 13px 10px 13px;box-shadow:0 7px 0 #d2b27a25,0 15px 32px #71553410;overflow:hidden;isolation:isolate}.board:before{content:'';position:absolute;inset:9px;border:1px solid #fff3d133;border-radius:5px;pointer-events:none}#board-art{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.grid-line{stroke:#987647;stroke-width:1.15;opacity:.7}.star{fill:#876940;opacity:.65}.coordinate{font:11px ui-monospace,monospace;fill:#9d7e49}.stone{filter:url(#stone-shadow)}.target-ring{fill:none;stroke:#b7864f;stroke-width:2;stroke-dasharray:3 4}.last-mark{fill:none;stroke:#a5b395;stroke-width:1.8}.liberty-ring{fill:#e9eacbab;stroke:#688c63;stroke-width:2.3}.marked-liberty{fill:#69885e;stroke:#eef1d6;stroke-width:1.2}.liberty-number{fill:#fffef0;font:13px system-ui,sans-serif;text-anchor:middle;dominant-baseline:central}.demo-hand{fill:#ecddbc;stroke:#a28852;stroke-width:1.5}.guide-line{stroke:#8da879;stroke-width:3;opacity:.65}.point-hint{fill:none;stroke:#658558;stroke-width:2;stroke-dasharray:4 4}.trial-stone{opacity:.57}.point{position:absolute;width:9.3%;height:9.3%;padding:0;transform:translate(-50%,-50%);border-radius:50%;z-index:2}.point:focus-visible{outline:2px solid #426e53;outline-offset:-2px}.point[data-empty=true]:hover:after{content:'';position:absolute;inset:10%;border-radius:50%;background:#35483b24;border:1px solid #475d4333}.is-demo .point{cursor:default}.is-demo .point:hover:after{display:none}.board-feedback{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);font-size:11px;white-space:nowrap;max-width:94%;overflow:hidden;text-overflow:ellipsis;border-radius:20px;background:#faf3ddd9;color:#956745;padding:6px 12px;pointer-events:none;z-index:4;opacity:0;transition:opacity .15s}.board-feedback.visible{opacity:1}.board-legend{font-size:9px;color:#98a186;margin:17px 3px 0;display:flex;align-items:center;gap:24px;flex-wrap:wrap;line-height:1.8}.board-legend>span{display:flex;align-items:center;gap:6px}.liberty-symbol{display:inline-block;height:8px;width:8px;border:1px solid #7a9569;border-radius:50%}.target-symbol{display:inline-block;height:10px;width:10px;border:1px dashed #b08b58;border-radius:50%}#trial-label{color:#a7794d;margin-left:auto;font-size:8px}
.teaching-panel{padding-top:4px}.companion{display:flex;align-items:center;gap:17px;margin-bottom:15px;min-height:124px;position:relative}.panda{width:137px;height:137px;background:url('assets/art/panda.png') 0 0/300% 200% no-repeat;mix-blend-mode:multiply;flex-shrink:0}.companion>div>p{font-size:10px;letter-spacing:1px;color:#899779;margin:0 0 11px}#turn-badge{display:inline-block;font-size:10px;letter-spacing:1px;color:#a08451;background:#eee6ce;padding:6px 11px;border-radius:20px}#turn-badge.active{background:#e4ebd8;color:#65825a}#try-now{position:absolute;right:0;bottom:0;padding:7px 9px;border:1px solid #c5d1b7;border-radius:5px;font-size:10px;color:#708863}.task-copy h2{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:26px;letter-spacing:.7px;line-height:1.5;font-weight:500;margin:0 0 12px}#instruction{font-size:12px;color:#75886a;line-height:1.95;margin:0;min-height:49px}.observation{border-top:1px solid #d8dfc9;border-bottom:1px solid #d8dfc9;padding:17px 0 14px;margin-top:21px}.observation-heading{display:flex;justify-content:space-between;font-size:10px;color:#879877;gap:12px}#action-label{font-size:9px;letter-spacing:1px;color:#a0ab8d}.liberty-readout{display:flex;gap:11px;align-items:baseline;margin-top:13px;min-height:49px}#liberty-count{font:normal 43px Georgia,serif;color:#5c8054;line-height:1}#liberty-unit{font-size:11px;color:#8a9b77}#liberty-dots{display:flex;gap:8px;align-self:center;margin-left:auto}.breath-dot{width:9px;height:9px;border-radius:50%;border:1px solid #a4b68e}.breath-dot.filled{background:#8ba778;border-color:#8ba778}.breath-dot.danger{background:#c8a168;border-color:#c8a168}#observation-note{font-size:11px;color:#7b906b;line-height:1.8;margin:4px 0 0;min-height:20px}.feedback{min-height:39px;font-size:11px;line-height:1.8;margin:12px 0 3px;color:#ae7951}.feedback.good{color:#668959}.feedback:empty{min-height:15px;margin-top:7px}.next{width:100%;font-size:13px;justify-content:space-between;padding:12px 16px;background:#e1e9d4;color:#557449;border-color:#c2d1b1;box-shadow:none;margin-bottom:12px}.help-actions{display:flex;align-items:center;gap:25px;padding:8px 0}.help-actions button{font-size:10px;color:#7e946d;padding:3px 0;border-bottom:1px solid #c7d4b6}.capture-shelf{display:flex;align-items:center;gap:20px;border-top:1px solid #e0e5d3;margin-top:23px;padding-top:19px}.bowl{position:relative;width:98px;height:50px;border-radius:45% 45% 38% 38%;background:linear-gradient(#967650 8%,#b8996b 40%,#c2a576 80%,#bba171);box-shadow:inset 0 -3px 0 #8f71402b,0 3px 6px #6a573914;flex-shrink:0}.bowl:before{content:'';position:absolute;inset:2px 3px 12px;border-radius:50%;background:radial-gradient(ellipse,#756244,#a58a5e 85%);border:4px solid #c8b183}.bowl i{position:absolute;width:19px;height:12px;border-radius:50%;background:radial-gradient(ellipse at 40% 20%,#fffdf3,#e5e0c9 78%);box-shadow:0 1px 2px #332b2340;left:20px;top:12px}.capture-shelf p{font-size:9px;color:#96a085;line-height:1.7;margin:0}.capture-shelf strong{font-size:13px;color:#839370;font-weight:500;display:block;margin:2px 0}.capture-shelf small{font-size:8px;color:#a8b096}.lesson-bottom{display:flex;justify-content:space-between;gap:20px;margin:22px 4px 0;border-top:1px solid #dce2cd;padding-top:16px;font-size:10px;color:#9ca58b}.lesson-bottom p{margin:0}.stone-flight{position:fixed;z-index:15;pointer-events:none;width:32px;height:32px;border-radius:50%;background:radial-gradient(circle at 35% 23%,white,#e8e3cf 77%);box-shadow:1px 3px 5px #3a432d25}
footer{max-width:1360px;margin:auto;padding:25px 54px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px;color:#9ca48d;font-size:9px}footer a{color:#8a9c7a}dialog{max-width:calc(100% - 32px);padding:39px 43px;border:1px solid #d7dec6;border-radius:13px;background:var(--paper);color:var(--ink);box-shadow:0 20px 100px #2d3f3129}dialog::backdrop{background:#273c326c;backdrop-filter:blur(4px)}dialog h2{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:28px;font-weight:500;line-height:1.5;margin:0 0 20px}dialog p{font-size:12px;line-height:1.95;color:#819271}#pause-dialog{text-align:center}#pause-dialog .primary{margin-top:13px}#pause-dialog .text-button{margin:20px auto 0}#guide-dialog{width:530px;max-height:90dvh;overflow:auto}.dialog-close{position:absolute;top:12px;right:15px;font-size:25px;color:#929f82}.rule-list p{padding-left:46px;position:relative}.rule-list b{position:absolute;left:0;font-size:13px;color:#5c7b51;font-weight:500}details{font-size:11px;color:#7c936a;line-height:1.9;margin:20px 0}summary{cursor:pointer}dialog .sources{font-size:10px}dialog .sources a{text-decoration:underline;text-underline-offset:3px}
#complete{padding:38px 54px 40px}.completion-top{display:flex;justify-content:center;align-items:center;gap:27px;margin-bottom:32px}.celebration{width:190px;height:190px;background-position:50% 100%}.completion-top h1{font-family:"Songti SC","Noto Serif CJK SC",serif;font-size:37px;line-height:1.45;font-weight:500;letter-spacing:1px;margin:0 0 13px}.completion-top p:not(.eyebrow){font-size:12px;color:#83966f;line-height:1.9}.completion-top .eyebrow{margin-bottom:12px;font-size:10px}.notes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.note-card{padding:18px 19px 16px;background:#fffdf5;border:1px solid #dce4cc;border-radius:6px 9px 6px 8px;position:relative}.note-card:before{content:'';position:absolute;width:35px;height:9px;background:#dce5c6b5;left:calc(50% - 17px);top:-4px;transform:rotate(-5deg)}.note-card>span{font-size:8px;letter-spacing:1px;color:#a0a78d}.note-card h3{font-size:14px;font-weight:500;color:#5f7d52;margin:9px 0}.note-card p{font-size:10px;line-height:1.8;color:#899b76;margin:0}.completion-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:28px;padding-top:20px;gap:25px}.completion-bottom p{font-size:11px;color:#929f7f;line-height:1.9}.completion-bottom .text-button{margin-top:16px}
@media(min-width:901px) and (max-height:850px){.topbar{height:70px}#lesson{padding-top:20px}.lesson-heading{margin-bottom:17px}.lesson-heading h1{font-size:25px}.workspace{grid-template-columns:minmax(0,1.3fr) minmax(320px,1fr);gap:62px;max-width:1090px;margin:auto}.board-section{max-width:520px}.board-topline{margin-bottom:10px}.companion{min-height:95px;margin-bottom:8px}.panda{width:100px;height:100px}.task-copy h2{font-size:23px;margin-bottom:8px}.tiny-label{margin-bottom:7px}#instruction{font-size:11px;min-height:42px}.observation{margin-top:14px;padding:12px 0}.liberty-readout{margin-top:10px;min-height:39px}#liberty-count{font-size:36px}.feedback{min-height:30px;font-size:10px;margin-top:8px}.feedback:empty{min-height:7px}.help-actions{padding:6px 0}.capture-shelf{margin-top:14px;padding-top:14px}.next{padding:10px 14px}.lesson-bottom{margin-top:15px;padding-top:12px}footer{padding-top:18px;padding-bottom:18px}#welcome{padding-top:60px;min-height:735px}.garden-art{top:22px;width:870px}.welcome-copy h1{font-size:50px}.welcome-bottom{margin-top:35px}.celebration{width:170px;height:170px}}
@media(max-width:1150px){.topbar{padding:0 28px;gap:18px}.brand{font-size:20px}.tools{gap:17px;font-size:10px}#chapters{font-size:10px;gap:10px}#chapters i{width:10px}#welcome{padding-left:37px;padding-right:37px}.welcome-copy h1{font-size:48px}.welcome-copy{width:46%}.garden-art{width:780px;right:-99px;top:120px}#lesson{padding-left:28px;padding-right:28px}.workspace{gap:35px;grid-template-columns:minmax(0,1.35fr) minmax(290px,1fr)}.companion{gap:10px}.companion .panda{width:105px;height:105px}.task-copy h2{font-size:23px}.board-legend{gap:16px;font-size:8px}.capture-shelf{gap:15px}.bowl{width:88px}}
@media(max-width:900px){.topbar{height:75px;padding:0 23px}#chapters{display:none}.brand{font-size:20px}#welcome{padding-top:45px;min-height:0}.welcome-copy{width:100%;text-align:center}.welcome-copy h1{font-size:50px}.welcome-copy .eyebrow{font-size:10px}.welcome-copy .intro{font-size:18px}.description{font-size:12px}.welcome-meta{justify-content:center}#resume{margin-left:auto;margin-right:auto}.garden-art{position:relative;top:auto;right:auto;width:calc(100% + 70px);margin:15px -35px 0}.welcome-bottom{margin-top:20px;gap:20px;flex-wrap:wrap}.scope-note{font-size:10px}.workspace{display:flex;flex-direction:column;gap:0;position:relative}.teaching-panel{display:contents}.companion{order:0;width:100%;min-height:75px;gap:13px;margin:0 0 9px;padding-top:0;position:relative}.companion .panda{width:79px;height:79px}.companion>div>p{font-size:9px;margin-bottom:8px}#turn-badge{font-size:9px;padding:4px 9px}#try-now{bottom:9px}.task-copy{order:1;width:100%;margin-bottom:13px}.task-copy .tiny-label{display:none}.task-copy h2{font-size:23px;margin-bottom:7px}#instruction{font-size:11px;min-height:0;line-height:1.8}.board-section{order:3;max-width:610px;align-self:center}.board-topline{margin-top:14px;font-size:9px}.observation{order:2;width:100%;padding:10px 0;margin:0;display:grid;grid-template-columns:1fr auto;column-gap:14px}.observation-heading{grid-column:1;align-self:center;justify-content:flex-start;gap:12px;font-size:10px}.liberty-readout{grid-column:2;grid-row:1/3;margin:0;align-items:center;gap:7px;min-height:40px}#liberty-count{font-size:32px}#liberty-unit{font-size:9px}#liberty-dots{gap:5px;margin-left:6px;max-width:72px;flex-wrap:wrap}.breath-dot{width:7px;height:7px}#observation-note{grid-column:1;font-size:9px;margin:4px 0 0;min-height:0}.feedback{order:4;width:100%;font-size:11px;margin:10px 0 0;min-height:0}.feedback:empty{display:none}.next{order:5;width:100%;margin:13px 0 0}.help-actions{order:6;width:100%;justify-content:center;padding:18px 0 3px}.help-actions button{font-size:11px}.capture-shelf{order:7;width:100%;justify-content:center;margin:16px 0 0;padding-top:15px}.capture-shelf p{font-size:9px}.capture-shelf strong{display:inline-block;margin-left:12px}.capture-shelf small{display:block}.bowl{width:85px;height:43px}.board-legend{margin-top:12px;font-size:9px;gap:18px}.lesson-heading{margin-bottom:10px}.lesson-heading h1{font-size:26px}.lesson-heading .eyebrow{font-size:9px}.lesson-bottom{margin-top:19px;font-size:9px;line-height:1.8}.tools kbd{display:none}#complete{padding:30px 26px}.completion-top{gap:15px}.celebration{width:150px;height:150px}.completion-top h1{font-size:29px}.notes{grid-template-columns:repeat(2,1fr)}.completion-bottom{align-items:flex-start;flex-direction:column;gap:13px}footer{padding:23px 28px;flex-wrap:wrap;line-height:1.9}}
@media(max-width:480px){.topbar{padding:0 16px;gap:10px;height:70px}.brand{font-size:17px;letter-spacing:2px;gap:9px}.brand small{font-size:6px;letter-spacing:1px}.brand-mark{width:31px;height:30px}.brand-mark i{width:21px;height:21px}.brand-mark i+i{left:11px;top:9px}.tools{gap:12px;font-size:9px}.tools #guide-open{max-width:24px;line-height:1.6}#welcome{padding:37px 23px 27px}.welcome-copy h1{font-size:39px;letter-spacing:1px}.welcome-copy .intro{font-size:17px}.welcome-copy .eyebrow{font-size:9px}.welcome-meta{font-size:9px;gap:11px}.garden-art{width:calc(100% + 40px);margin:16px -20px 0}.welcome-bottom>div>p{font-size:12px;gap:17px;letter-spacing:2px}.welcome-bottom>div>span{font-size:9px}.scope-note{font-size:9px}.welcome-bottom{padding-top:20px}#lesson{padding:20px 16px}.lesson-heading h1{font-size:23px}.lesson-heading .eyebrow{font-size:8px;letter-spacing:1.8px}.progress{font-size:8px}#progress-dots{gap:5px}.progress-dot{width:6px;height:6px}.companion{min-height:68px;margin-bottom:7px}.companion .panda{width:70px;height:70px}.task-copy h2{font-size:21px}.task-copy{margin-bottom:12px}.board-topline{font-size:8px;margin-bottom:10px}.board-legend{font-size:8px;gap:15px}.observation-heading{font-size:9px;gap:8px}#action-label{font-size:8px}#liberty-count{font-size:29px}#liberty-dots{max-width:39px;gap:5px}.lesson-bottom{flex-wrap:wrap;gap:6px}#save-note{font-size:8px}.completion-top{gap:8px}.celebration{width:103px;height:103px}.completion-top h1{font-size:25px;letter-spacing:0}.completion-top p:not(.eyebrow){font-size:10px}.completion-top .eyebrow{font-size:8px}.notes{gap:12px}.note-card{padding:15px 12px}.note-card h3{font-size:12px}.note-card p{font-size:9px}.completion-bottom p{font-size:10px}dialog{padding:34px 24px}dialog h2{font-size:24px}.primary{font-size:14px;padding:14px 20px}#guide-dialog{max-height:85dvh}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Keep the actionable instruction distinct from the quieter page labels. */
#instruction{color:#637c58}
.description{color:#718366}
.is-counting .point[data-empty=true]:hover:after{inset:28%;background:#72905b22;border:1px solid #68875688}
.board[data-interactive=false] .point{cursor:default}
.board[data-interactive=false] .point:after{display:none}