*,:before,:after{box-sizing:border-box}html,body{color:#2b2925;-webkit-font-smoothing:antialiased;background:#faf8f4;margin:0;font-family:Noto Serif SC,system-ui,serif}#root{max-width:1340px;margin:0 auto}:root{--paper:#faf8f4;--ink:#2b2925;--line:#d8d3ca;--seal:#b0352b;--card-rows:64px 40px 60px auto;--card-pad:12px;--card-w:270px;--grid-gap:12px;--edge:48px;--content-w:calc(4 * var(--card-w) + 3 * var(--grid-gap))}.topbar,.hero,.howto,.filter,.grid{max-width:calc(var(--content-w) + 2 * var(--edge))}main{z-index:1;color:var(--ink);position:relative}.hero-bg{opacity:.2;-webkit-mask-composite:source-in;pointer-events:none;z-index:0;background-position:100% 0;background-repeat:no-repeat;background-size:auto 100%;height:min(80vh,720px);position:absolute;top:0;left:0;right:0;-webkit-mask-image:linear-gradient(270deg,#000 35%,#0000 66%),linear-gradient(#000 60%,#0000);mask-image:linear-gradient(270deg,#000 35%,#0000 66%),linear-gradient(#000 60%,#0000);-webkit-mask-composite:source-in;mask-composite:intersect}.topbar{padding:26px var(--edge) 0;flex-wrap:wrap;align-items:center;gap:10px 12px;display:flex}.topbar-sep{background:var(--line);width:1px;height:22px;margin:0 10px}.ctrl-cap{letter-spacing:.14em;text-transform:uppercase;opacity:.55;font-size:10px}.hero{min-height:min(82vh,820px);padding:40px var(--edge) 72px;flex-direction:column;justify-content:center;display:flex}.kicker{letter-spacing:.16em;text-transform:uppercase;color:var(--seal);margin:0 0 22px;font-size:11px}.hero h1{letter-spacing:-.04em;width:fit-content;margin:0;font-family:Fraunces,Amiri,Noto Serif SC,serif;font-size:clamp(56px,11vw,150px);font-weight:300;line-height:.9}.title-line{display:block}.hero h1[dir=rtl]{letter-spacing:0;line-height:1.15}.subtitle{letter-spacing:.01em;opacity:.65;width:fit-content;max-width:640px;margin:28px 0 0;font-family:Fraunces,serif;font-size:clamp(17px,1.9vw,24px);font-style:normal;font-weight:300}.langs{gap:8px;display:flex}.langs button{letter-spacing:.08em;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:999px;padding:6px 14px;font-family:Fraunces,serif;font-size:14px}.langs button.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}.size-ctrl{border:1px solid var(--line);border-radius:999px;align-items:center;height:30px;padding:0 3px;display:inline-flex}.size-ctrl button{height:24px;color:var(--ink);cursor:pointer;background:0 0;border:none;border-radius:999px;padding:0 10px;font-family:Fraunces,serif;line-height:24px;display:inline-block}.size-down{font-size:13px}.size-up{font-size:14px}.size-ctrl sup{vertical-align:.55em;margin-left:2px;font-size:.7em;font-weight:600;line-height:0}.size-ctrl button:hover:not(:disabled){background:#efebe3}.size-ctrl button:disabled{opacity:.3;cursor:default}.sec-head{border-top:1px solid var(--line);flex-wrap:wrap;align-items:baseline;gap:8px 18px;margin:0 0 24px;padding-top:22px;display:flex}.sec-num{color:var(--seal);font-family:Fraunces,serif;font-size:13px}.sec-title{letter-spacing:-.01em;margin:0;font-family:Fraunces,serif;font-size:30px;font-weight:400}.sec-note{opacity:.6;margin-left:auto;font-family:Fraunces,serif;font-size:13px;font-style:italic;font-weight:300}.grid{grid-template-columns:repeat(auto-fill, minmax(var(--card-w), 1fr));gap:var(--grid-gap);padding:22px var(--edge) 0;display:grid}.card{grid-template-rows:var(--card-rows);border:1px solid var(--line);padding:var(--card-pad);text-align:center;background:#faf8f4d9;display:grid}.char{font-size:46px;line-height:64px}.label{opacity:.8;font-size:14px;overflow:hidden}.forms{grid-template-columns:repeat(6,1fr);gap:4px;display:grid}.form{flex-direction:column;align-items:center;gap:2px;display:flex}.form img,.form .empty{border-radius:4px;width:30px;height:30px}.form .empty{border:1px dashed var(--line)}.form small{opacity:.6;font-size:9px}.derived{flex-wrap:wrap;place-content:flex-start center;align-items:center;gap:4px 8px;margin-top:6px;font-size:17px;display:flex}.derived .hl{width:1.25em;height:1.25em;color:var(--seal);z-index:0;place-items:center;margin:0 -.125em;display:inline-grid}.derived .hl:before{content:"";border:1.5px solid var(--seal);pointer-events:none;z-index:-1;background:#fbf2ef;border-radius:5px;position:absolute;inset:0 -.1em -.2em}.howto{--box-w:336px;--card-rows:64px 40px 60px minmax(80px, auto);--row-mid:25px;--guide-min:280px;--conn-w:50px;padding:8px var(--edge) 72px;overflow-x:auto}.howto-grid{grid-template-columns:minmax(var(--guide-min), 1fr) minmax(var(--card-w), var(--box-w)) var(--conn-w) minmax(var(--card-w), var(--box-w));display:grid}.howto .derived{align-content:flex-end}.annotations{grid-area:1/1}.howto-grid>.card{grid-area:1/2}.connector{grid-area:1/3}.hao-card{grid-area:1/4}.annotations{grid-template-rows:var(--card-rows);padding:var(--card-pad) 6px var(--card-pad) 0;border:1px solid #0000;margin:0;list-style:none;display:grid}.annotations li{text-align:start;opacity:.8;align-items:center;gap:10px;font-size:12px;line-height:1.35;display:flex}.annotations li:after{content:"";border-top:1.5px dotted var(--ink);opacity:.35;flex:1 0 32px}.annotations li span{white-space:pre-line}.annotations li:last-child{padding-bottom:calc(var(--row-mid) - var(--card-pad) - 8px);align-items:flex-end}.annotations li:last-child:after{margin-bottom:8px}.connector{--hao-mid:calc(1px + var(--card-pad) + 32px);margin:var(--hao-mid) 0 var(--row-mid);color:#b0352b80;align-self:stretch;position:relative}.connector:before,.connector:after{content:"";border:0 dotted;position:absolute}.connector:before{border-bottom-width:1.5px;border-right-width:1.5px;width:50%;top:0;bottom:0;left:0}.connector:after{border-top-width:1.5px;top:0;left:50%;right:0}.connector-head{background:var(--seal);border-radius:50%;width:6px;height:6px;position:absolute;top:-2.25px;right:-3px}.hao-card{grid-template-rows:var(--card-rows);padding:var(--card-pad);text-align:center;background:#fbf2ef;border:1px solid #b0352b38;align-self:stretch;display:grid}.hao-char{color:var(--seal);font-size:46px;line-height:64px}.hao-pinyin{opacity:.8;font-size:14px}.hao-bottom{align-items:center;gap:10px;margin-top:6px;display:flex}.hao-formula{flex-shrink:0;justify-content:center;align-items:flex-start;gap:4px;display:flex}.hao-formula span{flex-direction:column;align-items:center;display:flex}.hao-formula b{font-size:20px;font-weight:400}.hao-formula b.seal{color:var(--seal)}.hao-formula small{opacity:.7;font-size:10px}.hao-formula em{opacity:.5;font-size:15px;font-style:normal;line-height:28px}.hao-bottom p{text-align:start;margin:0;font-family:Fraunces,serif;font-size:11px;font-style:italic;font-weight:300;line-height:1.35}.filter{padding:0 var(--edge)}.filter-head{flex-wrap:wrap;align-items:baseline;gap:16px;display:flex}.filter-count{opacity:.6;font-size:14px}.filter-clear{color:var(--seal);cursor:pointer;background:0 0;border:none;font-size:14px;text-decoration:underline}.search-wrap{max-width:320px;margin:0 0 12px;position:relative}.filter-search{width:100%;font:inherit;border:1px solid var(--line);color:var(--ink);background:#fff9;border-radius:999px;padding:7px 14px;font-size:14px}.filter-search:focus{border-color:var(--ink);outline:none}.dropdown{background:var(--paper);border:1px solid var(--line);z-index:10;border-radius:12px;max-height:280px;margin:0;padding:4px;list-style:none;position:absolute;top:calc(100% + 4px);left:0;right:0;overflow-y:auto;box-shadow:0 10px 28px #2b292524}.dropdown li{cursor:pointer;border-radius:8px;align-items:center;gap:8px;padding:5px 10px;font-size:14px;display:flex}.dropdown li.active{background:#efebe3}.dropdown .dd-check{width:12px;color:var(--seal)}.dropdown .dd-char{text-align:center;width:22px;font-size:17px}.dropdown .dd-pinyin{opacity:.5;margin-left:auto;font-size:12px}.dropdown .dd-empty{opacity:.6;cursor:default}.pills{flex-wrap:wrap;gap:4px;display:flex}.pills:after{content:"";flex:1000 1 0}.pill{font:inherit;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:999px;flex:1 0 auto;justify-content:center;align-items:center;gap:4px;padding:1px 9px;font-size:12px;line-height:1.6;display:inline-flex}.pill b{font-size:13px;font-weight:400}.pill:hover{border-color:var(--ink)}.pill.active{background:var(--ink);border-color:var(--ink);color:var(--paper)}.footer{max-width:var(--content-w);margin:96px var(--edge) 0;background:#f0eee9;border-radius:10px;padding:48px}.footer-inner{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:48px;display:grid}.footer h3{margin:0 0 14px;font-family:Fraunces,serif;font-size:19px;font-weight:400}.footer p{margin:0 0 12px;font-size:14px;line-height:1.8}.footer a{color:var(--ink);border-bottom:1px solid var(--ink);text-decoration:none}.footer a:hover{color:var(--seal);border-color:var(--seal)}.footer-credit{max-width:var(--content-w);margin:0 var(--edge);text-align:start;opacity:.7;padding:16px 0 0;font-size:12px;line-height:1.6}.footer-credit:last-child{padding-bottom:40px}.footer-credit a{color:var(--ink);border-bottom:1px solid var(--ink);text-decoration:none}.footer-credit a:hover{color:var(--seal);border-color:var(--seal)}.card,.hao-card{border-radius:10px}.grid .card{transition:border-color .2s,box-shadow .2s,transform .2s}.grid .card:hover{border-color:#bdb5a8;transform:translateY(-2px);box-shadow:0 6px 18px #2b292514}.char-wrap{position:relative}.char-wrap.has-stroke{cursor:help}.char-wrap:focus-visible{outline:1px dashed var(--ink);outline-offset:2px;border-radius:6px}.stroke-pop{z-index:30;border:1px solid var(--line);background:#fff;border-radius:12px;flex-direction:column;align-items:center;gap:4px;width:150px;padding:10px 10px 6px;animation:.15s ease-out stroke-pop-in;display:flex;position:absolute;top:-6px;left:50%;transform:translate(-50%);box-shadow:0 10px 28px #2b292529}.stroke-pop img{object-fit:contain;width:128px;height:128px}.stroke-pop small{opacity:.6;font-size:11px}@keyframes stroke-pop-in{0%{opacity:0;transform:translate(-50%)scale(.96)}}.derived span[data-tip]{cursor:default;position:relative}.derived span[data-tip]:hover:after{content:attr(data-tip);z-index:20;letter-spacing:0;white-space:nowrap;color:var(--paper);background:var(--ink);pointer-events:none;border-radius:6px;padding:4px 8px;font-family:Fraunces,serif;font-size:12px;position:absolute;bottom:calc(100% + 6px);left:50%;transform:translate(-50%)}.image-credit{padding-top:20px}