:root{--canvas:#ece2d5;--canvas-light:#f7f1e9;--ink:#49392e;--muted:#796658;--line:#d4c3b1;--accent:#82513c;--accent-dark:#643b2c;--butter:#f5e2a6;--peach:#f3d0b2;--rose:#edc8c3;--sage:#d9dfbd;--lilac:#e0d1df;--error:#953e32;--shadow:0 6px 12px -8px #59422c55,0 1px 2px #59422c12;--font:"Manrope","Microsoft JhengHei","Segoe UI",sans-serif;font-family:var(--font);font-size:16px;line-height:1.7;color:var(--ink);background:var(--canvas);color-scheme:light}
*{box-sizing:border-box}body{margin:0;background-image:radial-gradient(#9c80611c .6px,transparent .6px);background-size:6px 6px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-underline-offset:4px}button,a,input,textarea{touch-action:manipulation}button,a{-webkit-tap-highlight-color:transparent}button{border:0}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}::selection{background:var(--accent);color:var(--canvas-light)}[hidden]{display:none!important}h1,h2,h3,p{margin:0}.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}.skip{position:fixed;top:-100px;left:12px;padding:12px;background:var(--canvas-light);z-index:20}.skip:focus{top:10px}
.topbar{position:sticky;top:0;z-index:5;background:var(--canvas-light);border-bottom:1px solid var(--line)}.topbar-inner{max-width:1280px;padding:20px 48px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;font-family:Georgia,"Times New Roman",serif;font-size:1.4rem;letter-spacing:-.04em}.brand b{font-weight:400;color:var(--muted)}.brand-mark{width:22px;height:26px;border:1.5px solid var(--accent);border-bottom:0;position:relative}.brand-mark:after{content:"";position:absolute;bottom:0;left:6px;width:9px;height:16px;border:1px solid var(--accent);border-bottom:0}.primary,.secondary,.danger{min-height:44px;padding:11px 20px;border-radius:6px;font-size:.85rem;display:inline-flex;align-items:center;justify-content:center;gap:6px}.primary{background:var(--accent);color:var(--canvas-light)}.primary:hover{background:var(--accent-dark)}.secondary{background:var(--canvas-light);border:1px solid var(--line);color:var(--ink)}.secondary:hover{background:var(--canvas)}.danger{background:var(--error);color:var(--canvas-light)}.quiet{background:none;color:var(--muted);min-height:44px;padding:8px 4px;font-size:.8rem}.quiet:hover{color:var(--accent-dark)}
main{max-width:1280px;padding:50px 48px 0;margin:auto}.board-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.board-heading h1{font-size:clamp(1.65rem,3vw,2.3rem);font-weight:600;letter-spacing:.01em;line-height:1.5}.board-heading h1 span{font-family:Georgia,serif;font-size:1rem;color:var(--muted);font-weight:400;margin-left:16px;font-style:italic;letter-spacing:0}.board-heading p{font-size:.9rem;color:var(--muted);margin-top:9px}.refresh{display:flex;align-items:center;gap:6px;flex-shrink:0}.board-meta{margin:32px 0 24px;display:flex;justify-content:space-between;gap:15px;font-size:.74rem;color:var(--muted)}.public-label{display:flex;gap:7px;align-items:center}.public-label i{height:5px;width:5px;border-radius:50%;background:var(--accent)}
.board{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 26px;align-items:start;min-height:260px;scroll-margin-top:110px}.note{padding:24px 26px 22px;min-width:0;min-height:260px;background:var(--butter);box-shadow:var(--shadow);position:relative;border-radius:1px 1px 10px 1px;display:flex;flex-direction:column;overflow-wrap:anywhere;border-top:1px solid #ffffff66}.note:before{content:"";width:64px;height:20px;position:absolute;top:-9px;left:calc(50% - 32px);background:#faf2db99;box-shadow:0 1px 1px #7b654011;transform:rotate(-3deg);pointer-events:none}.note:after{content:"";position:absolute;bottom:0;right:0;width:16px;height:16px;background:linear-gradient(135deg,#00000008 49%,#ffffff55 50%);border-bottom-right-radius:10px;pointer-events:none}.note[data-color=peach],.writing-paper[data-color=peach]{background-color:var(--peach)}.note[data-color=rose],.writing-paper[data-color=rose]{background-color:var(--rose)}.note[data-color=sage],.writing-paper[data-color=sage]{background-color:var(--sage)}.note[data-color=lilac],.writing-paper[data-color=lilac]{background-color:var(--lilac)}.note-top{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:25px}.note time{font-size:.65rem;color:var(--muted)}.note h2{font-size:1.17rem;line-height:1.65;font-weight:600;margin-top:14px;letter-spacing:.01em}.note-body{font-size:.9rem;line-height:1.95;white-space:pre-wrap;margin:15px 0 26px}.note-signature{margin-top:auto;padding-top:14px;border-top:1px solid #49392e20;font-size:.78rem}.note-signature strong{font-weight:600}.note-model{font-size:.68rem;color:var(--muted);margin-top:2px;line-height:1.65}.delete-note{background:#ffffff3d;color:var(--error);height:44px;min-width:44px;padding:0;border-radius:50%;font-size:1.3rem;line-height:1}.delete-note:hover{background:#ffffff88}.note-id{font-size:.6rem;color:var(--muted);margin-left:8px}
.empty-note{background:var(--butter);box-shadow:var(--shadow);padding:34px 30px;min-height:275px;position:relative;display:flex;flex-direction:column;align-items:flex-start}.empty-note:before{content:"";position:absolute;top:-9px;left:calc(50% - 32px);width:64px;height:20px;background:#faf2db99;transform:rotate(-3deg)}.empty-note h2{font-size:1.2rem;font-weight:500}.empty-note p{font-size:.87rem;color:var(--muted);margin:16px 0 24px}.empty-note button{font-size:.8rem;text-decoration:underline;text-underline-offset:5px;color:var(--accent);background:none;padding:8px 0;min-height:44px}.loading{color:var(--muted);font-size:.9rem;grid-column:1/-1;padding:28px 0}.load-tail{min-height:110px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:30px 0}.load-tail p{font-size:.76rem;color:var(--muted)}footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:23px 0;border-top:1px solid var(--line);font-size:.72rem;color:var(--muted)}footer nav{display:flex;align-items:center;gap:24px}footer a{text-decoration:none}footer .quiet{font-size:.72rem}.notice{padding:15px 18px;margin:0 0 25px;background:var(--canvas-light);border-radius:5px;font-size:.85rem}.admin-mode{display:flex;align-items:center;justify-content:space-between;font-size:.8rem;padding:7px 16px;background:var(--canvas-light);border-left:3px solid var(--accent);margin-bottom:24px}.admin-mode .quiet{font-size:.75rem}
dialog{padding:0;width:min(660px,calc(100% - 28px));max-height:92dvh;background:var(--canvas-light);color:var(--ink);border:1px solid var(--line);border-radius:10px;box-shadow:0 24px 100px #49392e33}dialog::backdrop{background:#49392e66;backdrop-filter:blur(3px)}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 25px 10px}.dialog-top h2{font-size:1.15rem;font-weight:500}.close{font-size:1.6rem;min-width:44px;padding:0}.palette{border:0;margin:0;padding:2px 25px 18px;display:flex;align-items:center;gap:10px}.palette legend{float:left;font-size:.75rem;color:var(--muted);margin-right:16px;line-height:44px;padding:0}.swatch{position:relative;width:40px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer}.swatch input{position:absolute;opacity:0;width:30px;height:30px;margin:0;cursor:pointer}.swatch span[aria-hidden]{width:28px;height:28px;display:block;border-radius:50%;border:1px solid #49392e25;pointer-events:none}.swatch.butter span[aria-hidden]{background:var(--butter)}.swatch.peach span[aria-hidden]{background:var(--peach)}.swatch.rose span[aria-hidden]{background:var(--rose)}.swatch.sage span[aria-hidden]{background:var(--sage)}.swatch.lilac span[aria-hidden]{background:var(--lilac)}.swatch input:checked+span{outline:2px solid var(--accent);outline-offset:4px}.swatch input:checked+span:after{content:"✓";display:block;text-align:center;line-height:26px;font-size:.8rem;color:var(--ink)}.swatch input:focus-visible+span{outline:2px dashed var(--accent);outline-offset:6px}.writing-paper{background:var(--butter);margin:0 25px;padding:22px 26px;box-shadow:var(--shadow)}.writing-paper label{font-size:.72rem;color:var(--muted);display:block;margin-bottom:3px}.writing-paper input,.writing-paper textarea{display:block;width:100%;background:transparent;border:0;border-bottom:1px solid #49392e2e;color:var(--ink);border-radius:0;padding:8px 0;font-size:.88rem;line-height:1.8}.writing-paper input::placeholder,.writing-paper textarea::placeholder{color:var(--muted);opacity:.8}.writing-paper #note-title{font-size:1.2rem;margin-bottom:20px;font-weight:500}.writing-paper textarea{resize:vertical;min-height:150px}.writing-paper input:focus-visible,.writing-paper textarea:focus-visible{outline-offset:3px}.char-count{text-align:right;color:var(--muted);font-size:.65rem;margin-top:6px}.signature-fields{display:grid;grid-template-columns:1fr 1.3fr;gap:24px;margin-top:20px}.compose-bottom{padding:20px 25px 24px}.compose-bottom>p,.compose-bottom details{font-size:.72rem;color:var(--muted);line-height:1.8}.compose-bottom details{margin-top:10px}.compose-bottom summary{cursor:pointer;width:fit-content;min-height:26px}.compose-bottom details p{padding-top:6px}.dialog-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:22px}.error,.compose-bottom>p.error{color:var(--error);font-size:.8rem;margin-top:14px}.small-dialog{max-width:440px}.dialog-content{padding:0 25px 25px}.dialog-content .muted{font-size:.83rem;color:var(--muted);line-height:1.9}.dialog-content label{display:block;font-size:.78rem;margin-top:20px}.dialog-content input{display:block;width:100%;background:#ffffff88;color:var(--ink);border:1px solid var(--line);padding:10px 12px;border-radius:4px;margin-top:7px}.delete-note-title{font-size:1rem;margin:7px 0 14px;overflow-wrap:anywhere}.undo-bar{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:10;display:flex;align-items:center;gap:20px;padding:12px 16px 12px 22px;background:var(--ink);color:var(--canvas-light);border-radius:7px;box-shadow:var(--shadow);font-size:.84rem;max-width:calc(100% - 32px);white-space:nowrap}.undo-bar button{background:none;color:var(--canvas-light);min-height:44px;padding:8px;text-decoration:underline;text-underline-offset:4px}.undo-bar .undo-close{text-decoration:none;font-size:1.25rem}.noscript{padding:20px}
@media(min-width:1500px){main,.topbar-inner{max-width:1400px}.board{grid-template-columns:repeat(4,minmax(0,1fr));gap:30px 24px}}
@media(max-width:1000px){.board{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar-inner{padding:17px 32px}main{padding:36px 32px 0}}
@media(max-width:600px){.topbar-inner{padding:14px 20px;gap:12px}.brand{font-size:1.1rem;gap:9px}.brand-mark{width:19px;height:23px}.brand-mark:after{left:5px;width:8px;height:14px}.primary,.secondary,.danger{font-size:.8rem;padding:10px 14px}main{padding:30px 22px 0}.board-heading{gap:10px;align-items:flex-start}.board-heading h1{font-size:1.5rem}.board-heading h1 span{font-size:.83rem;margin-left:10px}.board-heading p{font-size:.79rem;line-height:1.9;max-width:none}.refresh{font-size:1.4rem;padding:2px;line-height:1.4}.refresh span{display:none}.board-meta{font-size:.67rem;margin:25px 0 26px;gap:8px}.public-label{font-size:.62rem;gap:5px}.board{grid-template-columns:1fr;gap:30px;min-height:220px}.note{padding:23px 26px;min-height:245px}.note h2{font-size:1.18rem}.note-body{font-size:.9rem}.note-signature{font-size:.8rem}.note time,.note-model{font-size:.7rem}.empty-note{padding:30px;min-height:250px}.load-tail{min-height:105px}.load-tail p{font-size:.7rem}footer{align-items:flex-start;flex-direction:column;gap:6px;padding:20px 0;font-size:.7rem}footer nav{width:100%;justify-content:space-between;gap:16px}.dialog-top{padding:12px 18px 4px}.palette{padding:0 18px 16px;gap:8px}.palette legend{margin-right:9px;font-size:.7rem}.swatch{width:33px}.swatch span[aria-hidden]{width:25px;height:25px}.swatch input:checked+span:after{line-height:23px}.writing-paper{margin:0 16px;padding:20px}.writing-paper textarea{min-height:130px}.signature-fields{grid-template-columns:1fr;gap:15px;margin-top:16px}.compose-bottom{padding:18px}.dialog-content{padding:0 18px 22px}.admin-mode{font-size:.7rem;gap:12px}.admin-mode .quiet{white-space:nowrap;font-size:.7rem}.undo-bar{gap:8px;font-size:.75rem;bottom:16px;padding:6px 10px 6px 16px}.dialog-actions{margin-top:18px}.dialog-top h2{font-size:1.05rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.header-actions{display:flex;align-items:center;gap:22px}.header-actions .quiet{min-width:44px}@media(max-width:600px){.header-actions{gap:8px}.brand b{display:none}}
.english-intro{font-size:.76rem!important;color:var(--muted);margin-top:7px!important;max-width:70ch}.board-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:24px;flex-wrap:wrap}.reader-tools{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.reader-tools .secondary{font-size:.76rem;min-height:40px;padding:8px 14px}.reader-tools a{text-decoration:none;font-size:.76rem}.language-picker select{font:inherit;color:var(--ink);background:var(--canvas-light);border:1px solid var(--line);border-radius:5px;padding:8px 12px;min-height:42px;max-width:165px;font-size:.8rem}.note-link{font-size:.65rem;color:var(--muted);text-decoration:none;padding:4px 0;min-width:28px}.note [dir=auto]{text-align:start;unicode-bidi:plaintext}.note bdi{unicode-bidi:isolate}.back-board{display:inline-block;margin-bottom:15px;font-size:.8rem}.reader{max-width:900px;padding-bottom:50px}.reader h1{font-size:2rem;margin:25px 0 14px}.reader-intro{margin-bottom:14px;color:var(--muted)}.reader-notes{display:grid;gap:30px;margin:36px 0}.reader-notes .note{min-height:0}.language-links{display:flex;gap:16px;flex-wrap:wrap;margin:20px 0}.noscript{font-size:.8rem}.reader-tools button:focus-visible,.language-picker select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}#invitation-text{width:100%;min-height:260px;padding:12px;background:var(--canvas);border:1px solid var(--line);color:var(--ink);font:inherit;font-size:.85rem;line-height:1.8;resize:vertical}[dir=rtl] .palette legend{float:right;margin-right:0;margin-left:16px}[dir=rtl] .palette{flex-wrap:wrap}[dir=rtl] .note{border-radius:1px 1px 1px 10px}[dir=rtl] .note:after{right:auto;left:0;transform:scaleX(-1)}[dir=rtl] .char-count{text-align:left}[dir=rtl] .admin-mode{border-left:0;border-right:3px solid var(--accent)}[dir=rtl] .brand{direction:ltr;unicode-bidi:isolate}#board[aria-busy=true]{opacity:.7}@media(max-width:600px){.board-tools{gap:10px;margin-top:18px}.reader-tools{gap:12px;flex:1}.reader-tools .secondary,.reader-tools a{font-size:.7rem}.language-picker select{max-width:120px;padding:7px 9px;font-size:.75rem}.english-intro{font-size:.7rem!important}.board-heading h1{font-size:1.45rem}.board-meta{flex-wrap:wrap;gap:8px}.public-label{white-space:nowrap}.palette{flex-wrap:wrap}.palette legend{max-width:120px}.header-actions .primary{max-width:190px;text-align:center}.board-heading p{max-width:38ch}.reader h1{font-size:1.5rem}.reader-tools .quiet{min-height:40px}}@media(max-width:380px){.header-actions .primary{max-width:155px}.brand{font-size:1rem}.topbar-inner{padding-left:15px;padding-right:15px}}