:root{--bg:#f7f8fa;--paper:#fff;--ink:#20252c;--muted:#68717d;--line:#e6e9ee;--blue:#1765d7;--blue-light:#edf4ff;--shadow:0 8px 32px #26334707,0 1px 3px #26334704;--radius:22px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 var(--font);-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{border:0;background:transparent;color:inherit}button:disabled{cursor:default;opacity:.42}a{color:inherit;text-decoration:none}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid #4d8dea;outline-offset:4px}button{transition:background .18s,color .18s,box-shadow .18s}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;line-height:1.4}button:hover:not(:disabled){filter:brightness(.97)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:fixed;left:20px;top:-60px;z-index:90;background:var(--blue);color:white;padding:10px}.skip:focus{top:10px}
.site-header{height:78px;border-bottom:1px solid #e6e9ee99;background:#fbfcfdd9;backdrop-filter:blur(18px);position:relative;z-index:10}.nav-inner{max-width:1240px;height:100%;padding:0 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:13px}.brand strong{font-size:23px;letter-spacing:3px}.brand-caption{font-size:12px;color:#78808a;margin-left:2px;letter-spacing:.3px}.brand-mark{width:31px;height:31px;position:relative;display:block}.brand-mark i{position:absolute;height:9px;border:1.8px solid #272f3a;border-radius:3px;width:23px;transform:rotate(-36deg)}.brand-mark i:nth-child(1){top:4px;left:0}.brand-mark i:nth-child(2){top:12px;left:5px;border-color:#1765d7}.brand-mark i:nth-child(3){top:20px;left:9px}.nav-inner nav{display:flex;gap:36px;font-size:13px;color:var(--muted)}.nav-active{color:var(--ink);font-weight:600}.nav-link{padding:0}.connection{font-size:12px;display:flex;align-items:center;gap:8px;color:#58616d;border:1px solid var(--line);border-radius:30px;padding:8px 13px;background:white;min-height:36px}.status-dot{width:6px;height:6px;border-radius:50%;background:#9ba5b2}.connection.connected .status-dot{background:#32916a;box-shadow:0 0 0 3px #32916a0e}.settings-glyph{font-size:16px;margin-left:5px;color:#8b929c}
main{max-width:1160px;padding:0 40px;margin:auto}.hero{text-align:center;padding:62px 0 44px;max-width:870px;margin:auto}.eyebrow{display:flex;align-items:center;justify-content:center;gap:9px;font-size:12px;color:#6b7481;letter-spacing:1.7px;font-weight:500}.eyebrow>span{width:5px;height:5px;border-radius:50%;background:#5585bd}.hero h1{font-size:clamp(32px,4.3vw,51px);letter-spacing:-1.8px;margin:16px 0 15px;font-weight:650}.hero h1>span{color:#617893}.hero-caption{font-size:15px;color:var(--muted);letter-spacing:.3px}.composer-card{text-align:left;margin-top:31px;background:white;border:1px solid #e3e7ed;border-radius:21px;padding:20px 23px 17px;box-shadow:0 12px 32px #2b416106,0 3px 6px #22395803;transition:border-color .2s,box-shadow .2s}.composer-card:focus-within{border-color:#a4bee1;box-shadow:0 0 0 4px #1765d708,0 12px 32px #2b416106}.input-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#717b88}.text-button{padding:4px 0;font-size:12px;color:var(--muted)}.text-button:hover{color:var(--ink)}textarea{display:block;width:100%;border:0;outline:none!important;resize:vertical;min-height:85px;max-height:220px;font-size:20px;line-height:1.65;color:#293342;background:transparent;margin-top:10px;padding:0;letter-spacing:.05px}textarea::placeholder{color:#a0a7b0;font-size:17px}.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px}#input-hint{font-size:11px;color:#78818c}.dot-divider{margin:0 10px}.primary-button{display:flex;gap:16px;align-items:center;justify-content:center;background:var(--blue);color:#fff;padding:11px 21px;border-radius:11px;font-size:14px;font-weight:500;box-shadow:0 3px 9px #1765d71a;min-height:44px}.primary-button:hover:not(:disabled){background:#1159c2}.try-row{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:17px;font-size:12px;color:#7b8490}.try-row>span{margin-right:4px}.try-row button{padding:5px 11px;border:1px solid #e4e8ee;border-radius:8px;color:#606c7b;background:#fcfcfd}.try-row button>span{margin-left:9px;color:#8b98a8}.privacy-line{font-size:11px;color:#737d88;margin-top:12px}.form-error{color:#a54438;background:#fff1ee;border:1px solid #eed7d0;border-radius:9px;padding:11px 14px;text-align:left;font-size:13px;margin-top:12px}.loading-panel{display:flex;align-items:center;justify-content:center;gap:20px;padding:40px 20px;margin-bottom:30px;border:1px solid var(--line);border-radius:18px;background:#fff}.loading-panel h2{font-size:17px}.loading-panel p{font-size:13px;color:var(--muted);margin-top:4px}.loading-orbit{width:30px;height:30px;border:2px solid #e8eef6;border-top-color:var(--blue);border-radius:50%;animation:spin 1s linear infinite}.quiet-button{min-height:36px;border:1px solid #dde3eb;background:#fff;border-radius:8px;padding:6px 12px;font-size:12px;white-space:nowrap}.quiet-button:hover{background:#f3f6fa}.loading-panel>.quiet-button{margin-left:30px}.empty-state{text-align:center;padding:35px 0 65px;color:var(--muted)}.empty-line{display:flex;justify-content:center;align-items:center;gap:12px;font-size:13px;color:#66788e;margin-bottom:15px}.empty-line span{padding:8px 24px;border:1px solid #e0e5ed;background:#ffffffa8;border-radius:8px;box-shadow:0 4px 0 #e9edf38c}.empty-line i{width:28px;height:1px;background:#c2ccda;position:relative}.empty-line i:after{content:"";position:absolute;right:0;top:-2px;width:5px;height:5px;border-top:1px solid #c2ccda;border-right:1px solid #c2ccda;transform:rotate(45deg)}.empty-state>p{font-size:13px;margin:21px 0 8px}.blue{color:var(--blue)}
.workspace{padding:0 0 35px;animation:appear .5s var(--ease)}.section-top{display:flex;align-items:flex-end;justify-content:space-between;gap:15px;margin-bottom:19px}.small{font-size:10px;letter-spacing:2.1px;justify-content:flex-start;color:#7b8694}.section-top h2{font-size:23px;letter-spacing:-.5px;margin-top:5px}.result-meta{display:flex;gap:7px;padding-bottom:3px}.subtle-badge{font-size:10px;border:1px solid #dfe5ed;background:#fff;padding:3px 9px;border-radius:6px;color:#626f80;white-space:nowrap}.workbench{border:1px solid #e0e5ed;border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}.bench-toolbar{display:flex;justify-content:space-between;align-items:center;padding:15px 22px;border-bottom:1px solid #edf0f4}.view-switch{display:flex;background:#f0f2f5;padding:3px;border-radius:9px;gap:2px}.view-switch button{padding:5px 16px;border-radius:7px;font-size:12px;min-height:32px;color:var(--muted)}.view-switch button.active{background:#fff;color:var(--ink);box-shadow:0 2px 4px #2633470c}.bench-actions{display:flex;gap:20px}.icon-text{display:flex;align-items:center;gap:7px;color:#727d8b;font-size:11px;min-height:36px;padding:2px}.icon-text svg{width:16px;height:16px}.icon-text[aria-pressed=false]{opacity:.55}.original-sentence{padding:25px 31px 19px;font-size:21px;line-height:1.9;color:#384352;letter-spacing:.1px;border-bottom:1px solid #f1f3f6}.sentence-part{padding:1px 2px;margin:0 -1px;border-radius:4px;font-size:inherit;line-height:inherit;transition:color .2s,background .2s,opacity .2s;vertical-align:baseline}.sentence-part.selected{background:var(--tone-bg);color:var(--tone);box-shadow:0 2px 0 var(--tone)}.sentence-part.active-word{color:var(--tone);background:var(--tone-bg)}.sentence-part.soft-word{color:#929aa5}.canvas-heading{display:flex;justify-content:space-between;align-items:center;padding:18px 27px 0;gap:12px;font-size:10px;color:#748398;letter-spacing:.7px}.canvas-hint{display:flex;align-items:center;gap:5px;color:#8792a0;letter-spacing:0}.canvas-hint svg{width:13px;height:13px}.diagram-viewport{overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;scrollbar-color:#d4dce7 transparent}.diagram{position:relative;min-width:100%;height:390px;background-image:radial-gradient(#dce3ed85 .7px,transparent .7px);background-size:18px 18px;outline-offset:-4px!important;transition:height .3s}.edges{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;stroke-width:1.4}.edges path{transition:opacity .3s}.edge-label{font-size:10px;fill:#8d99a9;stroke:none}.node-card{--tone:#536477;--tone-bg:#f3f5f8;--tone-border:#dce2ea;position:absolute;width:220px;min-height:104px;padding:15px 18px 14px;text-align:left;border:1px solid var(--tone-border);border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 5px 0 -1px #ecf0f5,0 10px 17px #2c466510;touch-action:none;user-select:none;transition:opacity calc(350ms / var(--playback-rate,1)),box-shadow .18s,border-color .2s,transform calc(500ms / var(--playback-rate,1)) var(--ease);cursor:grab;z-index:2;transform:translateY(calc(var(--lift,0px) + var(--stage-shift,0px))) scale(var(--stage-scale,1))}.node-card.flat{box-shadow:0 2px 8px #2c466509}.node-card:hover{box-shadow:0 5px 0 -1px var(--tone-border),0 12px 20px #2c46651a;border-color:var(--tone);filter:none!important}.node-card.selected{box-shadow:0 0 0 2px var(--tone),0 5px 0 var(--tone-border),0 10px 20px #2c46651a;border-color:var(--tone)}.node-card.dragging{cursor:grabbing;z-index:5;transition:none;box-shadow:0 10px 25px #2c466530;transform:translateY(-3px)}.node-tag{display:flex;align-items:center;gap:7px;color:var(--tone);font-size:10px;margin-bottom:9px;letter-spacing:.3px}.node-tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--tone)}.node-tag .drag-grip{margin-left:auto;font-size:12px;color:#a9b2bf;letter-spacing:1px}.node-en{display:block;text-align:center;font-size:17px;font-weight:550;line-height:1.5;overflow-wrap:anywhere;letter-spacing:-.1px}.node-gloss{display:block;text-align:center;color:#788493;font-size:12px;line-height:1.5;margin-top:7px;overflow-wrap:anywhere}.node-nested-count{position:absolute;right:9px;bottom:-10px;background:#fff;border:1px solid var(--tone-border);border-radius:20px;color:var(--tone);font-size:9px;padding:0 6px}.subject{--tone:#2567b7;--tone-bg:#eef5ff;--tone-border:#cfddf1}.predicate{--tone:#b06535;--tone-bg:#fff4eb;--tone-border:#ecd7c6}.object,.complement{--tone:#357c67;--tone-bg:#eef8f3;--tone-border:#cadfd4}.modifier{--tone:#79609d;--tone-bg:#f5f0fc;--tone-border:#ded1ed}.adverbial{--tone:#59738f;--tone-bg:#eff4fa;--tone-border:#d5dfe9}.connective,.other{--tone:#68717d;--tone-bg:#f4f5f7;--tone-border:#dce1e8}.legend{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;padding:10px 24px 24px;font-size:10px;color:#788292}.legend>span{display:flex;align-items:center;gap:6px}.legend-dot{width:6px;height:6px;border-radius:2px;background:var(--tone);display:inline-block}.legend .legend-help{color:#8a939f;margin-left:auto;font-size:9px}.playback{background:#fafbfd;border-top:1px solid #e9edf3;display:flex;align-items:center;gap:22px;padding:19px 26px 17px}.play-button{width:39px;height:39px;border-radius:50%;background:#eaf0f8;color:#536a87;flex-shrink:0;display:grid;place-items:center}.play-button svg{width:18px;height:18px;fill:currentColor;stroke-width:0}.timeline{flex:1;min-width:0}.timeline input{display:block;width:100%;height:18px;margin:0;accent-color:var(--blue);cursor:ew-resize}.step-labels{display:flex;justify-content:space-between;font-size:10px;color:#788596;padding-top:4px}.step-labels button{padding:2px 3px;font-size:10px;white-space:nowrap}.step-labels button.active{color:var(--blue);font-weight:600}.step-navigation{display:flex;gap:8px}.arrow-button{width:36px;height:36px;border:1px solid #dfe5ed;border-radius:10px;background:#fff;font-size:20px;line-height:1}.arrow-button.dark{background:#243142;color:#fff;border-color:#243142}
.insight-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.insight-card,.detail-card{border:1px solid #e2e7ee;background:#fff;border-radius:17px;padding:26px 28px;min-height:210px}.card-overline{display:flex;align-items:center;gap:11px;color:#768599;font-size:10px;letter-spacing:1px;margin-bottom:14px}.card-overline>span:first-child{font-family:var(--font);font-size:13px;color:#8ba3c2;font-weight:600}.insight-card h3,.detail-card h3{font-size:19px;letter-spacing:-.3px}.insight-card>p,.detail-card>p{color:#667385;font-size:13px;line-height:1.9;margin-top:9px}.pattern{display:inline-block;font-size:11px;background:#f3f6fa;color:#59718f;padding:5px 10px;border-radius:6px;margin-top:17px}.detail-placeholder{height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:6px 0}.detail-placeholder h3{font-size:16px;margin-top:4px}.detail-placeholder p{font-size:12px;color:var(--muted);margin-top:8px}.detail-icon{font-size:32px;color:#8aa2c2;height:39px;line-height:1}.detail-topline{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--tone);margin-bottom:11px}.detail-topline i{width:6px;height:6px;border-radius:50%;background:var(--tone)}.detail-english{font-size:20px!important;line-height:1.5!important;font-weight:550!important;overflow-wrap:anywhere}.detail-gloss{font-size:12px;color:#748093;margin-top:6px}.inner-parts{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}.inner-parts>p{font-size:10px;letter-spacing:.7px;color:#7a8797;margin-bottom:9px}.inner-parts details{font-size:12px;margin:6px 0;border-left:2px solid var(--tone-border);padding-left:10px}.inner-parts summary{cursor:pointer;color:#546375;padding:3px 0;list-style:disclosure-closed}.inner-parts details[open]>summary{list-style:disclosure-open}.inner-parts summary strong{font-weight:500;color:#38485d;margin-right:8px}.inner-parts details>p{font-size:11px;line-height:1.9;padding:5px 0 6px;color:#728096}.inner-parts details details{margin-left:6px}.cautions{background:#fcf7ed;border:1px solid #ece1c9;border-radius:12px;padding:16px 20px;color:#8b6734;margin-top:20px;font-size:12px}.cautions strong{display:block;margin-bottom:5px;font-size:12px}.cautions p+p{margin-top:5px}.grammar-section{margin-top:40px}.subsection-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.subsection-heading h2{font-size:21px;letter-spacing:-.4px}.subsection-heading p{font-size:12px;color:#788394;margin-top:5px}.count-label{font-size:11px;color:#7a8799}.grammar-list{border-top:1px solid #dde4ed}.grammar-item{border-bottom:1px solid #dde4ed}.grammar-item summary{cursor:pointer;list-style:none;display:flex;gap:16px;align-items:center;padding:17px 2px;font-size:13px}.grammar-item summary::-webkit-details-marker{display:none}.grammar-index{font-size:10px;color:#91a0b3;min-width:18px}.grammar-item summary>strong{font-weight:500;min-width:140px}.grammar-evidence{color:#8190a2;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.grammar-item summary:after{content:"+";font-size:18px;margin-left:auto;color:#74849a}.grammar-item[open] summary:after{content:"−"}.grammar-item>p{font-size:13px;color:#5b6d83;line-height:1.9;padding:0 45px 20px;max-width:850px}.examples-section{margin-top:42px;background:#eef2f7;border:1px solid #e2e8f0;border-radius:19px;padding:27px 29px}.examples-section .eyebrow{margin-bottom:7px}.examples-section .subsection-heading{margin-bottom:0}.soft-button{color:var(--blue);background:#fff;border:1px solid #d8e3f0;font-size:12px;padding:9px 16px;border-radius:9px;display:flex;align-items:center;gap:14px;white-space:nowrap;min-height:40px}.soft-button:hover{background:#f9fbff}.examples-list:not(:empty){margin-top:24px}.example-card{display:grid;grid-template-columns:35px 1fr auto;gap:18px;padding:22px 0;border-top:1px solid #dce3ed;align-items:start}.level-number{width:29px;height:29px;background:#fff;border:1px solid #dce5f1;border-radius:50%;display:grid;place-items:center;color:#5e7ca2;font-size:11px;margin-top:3px}.example-focus{display:block;font-size:10px;color:#7b8ca2;margin-bottom:5px}.example-en{font-size:17px;line-height:1.7;font-weight:500;color:#35465c}.example-zh{font-size:12px;color:#728298;margin-top:5px}.example-explain{font-size:12px;color:#5c708a;margin-top:10px;line-height:1.9}.example-card>.quiet-button{margin-top:5px;background:#f8fafd}.accuracy-note{font-size:10px;color:#7d8794;text-align:center;margin-top:26px;line-height:1.8}
.translation-panel{padding:30px 32px;min-height:370px}.translation-intro h3{font-size:20px}.translation-intro p{font-size:12px;color:#758398;line-height:1.9;margin-top:9px;max-width:850px}.translation-label{display:flex;justify-content:space-between;font-size:10px;color:#8290a3;margin-top:27px;margin-bottom:11px}.translation-blocks{display:flex;flex-wrap:wrap;gap:10px;align-items:stretch;min-height:80px}.translation-block{position:relative;min-width:118px;max-width:220px;min-height:94px;border:1px solid var(--tone-border);background:var(--tone-bg);border-radius:10px;padding:14px 13px 29px;cursor:grab;touch-action:none;user-select:none;flex:1;transition:box-shadow .2s}.translation-block.dragging{opacity:.45;box-shadow:0 0 0 2px var(--tone)}.translation-block.drop-target{box-shadow:0 0 0 2px var(--blue)}.translation-block strong{display:block;text-align:center;font-size:15px;color:var(--tone);font-weight:550;line-height:1.45}.translation-block span{display:block;text-align:center;font-size:12px;color:#738196;margin-top:3px;overflow-wrap:anywhere}.translation-block>span[lang=en]{display:block;text-align:center;font-size:16px;color:#435773;font-weight:500;line-height:1.45;margin:0 0 5px}.block-arrows{position:absolute;bottom:3px;right:5px;display:flex;gap:5px}.block-arrows button{font-size:13px;line-height:1;padding:3px 5px;color:var(--tone);min-width:25px;min-height:22px}.translation-controls{display:flex;gap:10px;align-items:center;margin-top:20px;flex-wrap:wrap}.translation-controls>span{font-size:10px;color:#7e8b9e;margin-left:auto}.translation-controls .soft-button{min-height:36px;padding:6px 12px}.final-translation{border-top:1px solid #e5eaf2;margin-top:26px;padding-top:19px}.final-translation>span{font-size:10px;color:#8090a6;letter-spacing:1px}.final-translation>p{font-size:19px;line-height:1.8;margin-top:7px;color:#334761}
footer{max-width:1080px;margin:10px auto 0;padding:25px 0 30px;border-top:1px solid #e2e7ed;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#7a8594;font-size:10px}.footer-brand{font-size:11px}.footer-brand>span{margin:0 8px}footer .text-button{font-size:10px}dialog{border:1px solid #e0e5ed;padding:29px 33px 35px;border-radius:20px;width:min(590px,calc(100% - 32px));max-height:85vh;color:var(--ink);box-shadow:0 30px 100px #162a4130;background:#fff}dialog::backdrop{background:#24344b38;backdrop-filter:blur(5px)}.dialog-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.close-button{width:32px;height:32px;border-radius:50%;background:#f0f3f7;font-size:23px;color:#728096;line-height:1}dialog h2{font-size:23px;margin-bottom:17px}#dialog-content{font-size:13px;color:#66778c;line-height:1.9}#dialog-content p{margin:12px 0}#dialog-content strong{color:#334962;font-weight:600}#dialog-content ol{padding-left:21px}#dialog-content li{margin:10px 0}.settings-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);gap:20px}.settings-row strong{word-break:break-all}.dialog-note{font-size:11px;background:#f4f7fb;padding:14px;border-radius:10px}.source-row{margin:12px 0;font-size:12px}.source-row strong{display:block}.source-row span{font-size:10px;color:#8290a3}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#26364b;color:#fff;border-radius:11px;padding:11px 20px;font-size:12px;box-shadow:0 5px 20px #26364b30;z-index:100;max-width:calc(100% - 32px);text-align:center}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes appear{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1450px){.hero{padding-top:78px;padding-bottom:55px}}
@media(max-width:900px){.nav-inner{padding:0 25px}.brand-caption{display:none}main{padding:0 24px}.hero{padding-top:46px}.hero h1{font-size:39px}.section-top h2{font-size:21px}.insight-layout{gap:14px}.insight-card,.detail-card{padding:21px}.legend .legend-help{display:none}footer{margin-left:24px;margin-right:24px}.grammar-evidence{max-width:45%}.playback{gap:15px}.step-navigation{gap:5px}.translation-block{max-width:none;flex-basis:150px}.example-card{gap:12px}}
@media(max-width:600px){.site-header{height:65px}.nav-inner{padding:0 18px;gap:12px}.brand{gap:9px}.brand strong{font-size:20px}.brand-mark{transform:scale(.85)}.nav-inner nav{display:none}.connection{padding:6px 10px;font-size:10px}.settings-glyph{display:none}main{padding:0 16px}.hero{padding:37px 0 33px}.eyebrow{font-size:10px;letter-spacing:1px}.hero h1{font-size:31px;letter-spacing:-1.2px;margin-top:16px}.hero h1>span{display:block;margin-top:4px}.hero-caption{font-size:12px;max-width:260px;margin:auto;line-height:1.9}.composer-card{margin-top:24px;padding:17px 16px 15px;border-radius:16px}textarea{font-size:17px;min-height:105px}textarea::placeholder{font-size:15px}.input-label{font-size:11px}.primary-button{font-size:12px;padding:10px 15px;gap:10px}.keyboard-hint{display:none}.dot-divider{display:none}.try-row{flex-wrap:wrap;gap:7px;margin-top:15px;font-size:10px}.try-row>span{width:100%;margin:0}.try-row button{padding:5px 8px}.try-row button>span{margin-left:5px}.privacy-line{font-size:9px;margin-top:12px}.section-top{align-items:flex-start;flex-direction:column;gap:10px}.section-top h2{font-size:20px}.result-meta{align-self:flex-end;margin-top:-5px}.bench-toolbar{padding:12px}.bench-actions{gap:10px}.icon-text span{display:none}.view-switch button{font-size:11px;padding:4px 10px}.original-sentence{font-size:18px;padding:18px;line-height:1.8}.canvas-heading{padding:14px 17px 0;font-size:9px}.canvas-hint{font-size:9px}.diagram{height:410px}.legend{gap:10px;padding:7px 12px 17px;font-size:9px}.playback{padding:13px 12px;gap:9px;flex-wrap:wrap}.play-button{width:32px;height:32px}.step-navigation{gap:4px}.arrow-button{width:30px;height:32px;border-radius:8px;font-size:16px}.step-labels button{font-size:8px;padding:2px 0}.timeline{min-width:160px}.insight-layout{grid-template-columns:1fr;margin-top:14px}.insight-card,.detail-card{min-height:180px;border-radius:14px}.insight-card h3{font-size:18px}.subsection-heading{gap:12px}.subsection-heading h2{font-size:18px}.subsection-heading p{font-size:11px}.grammar-section{margin-top:29px}.grammar-item summary{gap:10px;padding:15px 0}.grammar-item summary>strong{min-width:0;font-size:12px}.grammar-evidence{display:none}.grammar-item>p{padding:0 24px 18px;font-size:12px}.examples-section{margin-top:30px;padding:22px 17px;border-radius:15px}.examples-section .subsection-heading{align-items:flex-start;flex-direction:column;gap:15px}.examples-section .soft-button{align-self:flex-end}.example-card{grid-template-columns:27px 1fr;gap:10px;padding:19px 0}.level-number{width:24px;height:24px}.example-en{font-size:15px}.example-card>.quiet-button{grid-column:2;justify-self:start;margin-top:0}.example-explain{font-size:11px}.accuracy-note{font-size:9px;text-align:left}.translation-panel{padding:22px 17px}.translation-intro h3{font-size:17px}.translation-intro p{font-size:11px}.translation-block{flex-basis:125px;padding:11px 10px 28px}.translation-blocks{gap:8px}.translation-controls>span{width:100%;margin-left:0}.final-translation>p{font-size:17px}.empty-state{padding:25px 0 42px}.empty-line span{padding:6px 17px}.empty-state>p{font-size:11px}footer{flex-wrap:wrap;margin:0 16px;padding:22px 0;gap:15px}footer>span:last-child{width:100%;font-size:9px}.loading-panel{padding:25px 17px;gap:12px;flex-wrap:wrap}.loading-panel h2{font-size:15px}.loading-panel p{font-size:11px}.loading-panel>.quiet-button{margin-left:35px}.loading-orbit{width:25px;height:25px}.dialog-top{margin-bottom:12px}dialog{padding:23px}dialog h2{font-size:21px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.skip{visibility:hidden}.skip:focus{visibility:visible}
@media(max-width:600px){.canvas-hint{font-size:0}.canvas-hint::after{content:"左右滑动看全图 · 卡片可拖动";font-size:9px}}

.edge-handle{pointer-events:all;cursor:grab;touch-action:none;outline:none}.edge-handle .handle-dot{opacity:.7}.edge-handle:hover .handle-dot,.edge-handle:focus-visible .handle-dot{stroke:#1765d7;stroke-width:2;opacity:1}.edge-handle:active{cursor:grabbing}

.edge-tip{pointer-events:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;transition:opacity .18s}

/* Playback controls: keep the timeline clear; put pace and continuous play on a quiet second row. */
.playback{flex-wrap:wrap;row-gap:13px}
.play-button{width:78px;border-radius:11px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;font-weight:550}
.play-button svg{width:15px;height:15px}
.playback-options{flex-basis:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}
.playback-status{min-width:0;color:#788596;font-size:11px;line-height:1.6}
.playback-tools{display:flex;align-items:center;gap:14px;flex-shrink:0}
.playback-speed{display:flex;align-items:center;gap:7px;color:#788596;font-size:11px}
.playback-speed select{width:74px;min-height:32px;border:1px solid #dfe5ed;border-radius:8px;background:#fff;color:#536477;font:inherit;padding:4px 6px;cursor:pointer}
.continuous-play{display:flex;align-items:center;gap:8px;min-height:32px;padding:5px 11px;border:1px solid #dfe5ed;border-radius:8px;background:#fff;color:#536477;font-size:11px;white-space:nowrap;transition:background .18s,color .18s,border-color .18s}
.continuous-play:hover{border-color:#b6c8e3;color:var(--blue)}
.continuous-play[aria-pressed=true]{background:#eaf2ff;border-color:#c9dcf7;color:var(--blue)}
@media(max-width:600px){.playback{row-gap:12px}.play-button{width:64px;font-size:11px;gap:4px}.timeline{min-width:0}.playback-status{font-size:10px}.playback-tools{gap:8px}.playback-speed{gap:5px}.playback-speed>span{display:none}.playback-speed select{width:68px}.continuous-play{padding:5px 9px;gap:5px}}

/* The final step shares the original cards instead of swapping unrelated panels. */
.sentence-scene{position:relative;overflow:clip;overflow-anchor:none}
.sentence-scene.is-morphing #structure-scene,.sentence-scene.is-morphing #translation-panel{position:absolute;top:0;left:0;width:100%}
.sentence-scene.is-morphing #node-layer .node-card,.sentence-scene.is-morphing #translation-blocks .translation-block{visibility:hidden}
.sentence-scene.is-morphing #diagram{transition:none}
.translation-morph{position:absolute;inset:0;z-index:4;pointer-events:none;overflow:hidden}
.morph-card{position:absolute;top:0;left:0;border:1px solid var(--tone-border);background:#fff;will-change:transform;pointer-events:none}
.morph-surface{position:absolute;inset:0;border-radius:inherit;background:var(--tone-bg);pointer-events:none}
.morph-face{position:absolute!important;top:0!important;left:0!important;width:100%!important;height:100%!important;min-width:0!important;min-height:0!important;max-width:none!important;margin:0!important;border:0!important;border-radius:inherit;box-shadow:none!important;background:transparent!important;transform:none!important;transition:none!important;pointer-events:none!important;will-change:opacity;visibility:visible!important}
.morph-face.morph-source{z-index:1}
.morph-face.morph-target{z-index:2}

/* Recursive canvas: one visible scope, source-preserving breadcrumbs, cancellable motion. */

/* One world, one camera. Nested cards retain their original-sentence identity. */
main{max-width:1680px}
.canvas-tools{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 24px;border-bottom:1px solid #eef1f6;background:#fdfefe;flex-wrap:wrap}
.canvas-tools-group{display:flex;align-items:center;gap:9px;min-width:0}
.canvas-title{font-size:11px;color:#63768c;margin-right:8px;white-space:nowrap}
.canvas-tools .quiet-button{min-height:32px;padding:4px 10px;font-size:11px}
.canvas-tools .text-button{font-size:11px;white-space:nowrap}
#canvas-count{font-size:10px;color:#8b98a8;white-space:nowrap;font-variant-numeric:tabular-nums}
.canvas-icon{width:30px;height:30px;border-radius:7px;border:1px solid #e2e8ef;color:#637890;background:#fff;font-size:17px}
.canvas-icon:hover,.zoom-label:hover{background:#f0f5fc}
.zoom-label{width:46px;min-height:30px;font-size:11px;color:#718199;border-radius:6px;font-variant-numeric:tabular-nums}
.scope-feedback{display:flex;align-items:center;gap:14px;padding:8px 24px;color:#647e9e;font-size:12px;background:#f8fbff}
.scope-feedback:has(#scope-status:empty){display:none}
.node-nested-count[data-deepen]{cursor:pointer;color:var(--tone);background:#f8fbff;max-width:210px;white-space:nowrap;min-height:20px;display:flex;align-items:center;padding:1px 7px;bottom:-11px;font-size:9px}
.node-nested-count[data-deepen]:hover{background:var(--tone-bg);box-shadow:0 2px 10px #1768d820}
.node-card[aria-expanded=true]{border-color:var(--tone)}
.deepen-action{margin:8px 0 0}.deepen-note{font-size:11px!important;color:#8190a4!important;line-height:1.8!important;margin-top:8px!important}
.diagram-viewport{position:relative;isolation:isolate;height:clamp(540px,72vh,900px);overflow:hidden;touch-action:none;cursor:grab;background-color:#fdfefe;background-image:radial-gradient(#dfe7f0 0.7px,transparent 0.8px);background-size:22px 22px;outline-offset:-3px!important;overscroll-behavior:contain}
.diagram-viewport{user-select:none;-webkit-user-select:none}
.diagram-viewport .canvas-inspector{user-select:text;-webkit-user-select:text}
.diagram-viewport.panning{cursor:grabbing}
.diagram{min-width:0;position:absolute;left:0;top:0;transform-origin:0 0;background:none;transition:none;will-change:transform}
.nested-node{background:linear-gradient(150deg,#fff 70%,var(--tone-bg));box-shadow:0 4px 0 -1px #edf1f6,0 8px 20px #2b43600c}
.branch-label{position:absolute;height:26px;padding:0 0 10px;border-bottom:1px solid var(--tone-border);color:var(--tone);font-size:11px;letter-spacing:.3px;pointer-events:none;white-space:nowrap}
.branch-label span{font-size:10px;color:#9aa7b8;margin-left:12px}
.containment-edges{z-index:0}.containment-edges path{transition:none}
.canvas-heading{padding-bottom:13px}
.canvas-guide{position:absolute;left:20px;bottom:16px;color:#94a3b6;font-size:10px;letter-spacing:.25px;pointer-events:none;background:#ffffffd9;padding:5px 9px;border:1px solid #edf1f6;border-radius:7px;z-index:3}
.canvas-guide span{margin:0 4px;color:#c2ccd8}
.legend{padding:14px 24px;font-size:10px;border-top:1px solid #f2f4f7;background:#fff}
.canvas-inspector{position:absolute;right:18px;bottom:18px;width:min(330px,calc(100% - 36px));max-height:60%;overflow:auto;z-index:6;background:#fffffff2;backdrop-filter:blur(18px);border:1px solid #dce5ef;border-radius:14px;padding:20px;box-shadow:0 10px 40px #213e5d17;cursor:auto;touch-action:pan-y}
.canvas-inspector[hidden]{display:none}
.inspector-close{position:absolute;right:10px;top:7px;width:25px;height:25px;font-size:20px;color:#95a1b0;border-radius:7px}
.inspector-close:hover{background:#edf2f7}
.inspector-label{font-size:10px;color:var(--tone);display:block;padding-right:15px}
.canvas-inspector h3{font-size:17px;line-height:1.6;font-weight:550;margin:9px 0;color:#2f4158;overflow-wrap:anywhere}
.canvas-inspector p{font-size:11px;color:#6c7f96;line-height:1.9;margin-top:8px}
.canvas-inspector .inspector-gloss{color:#4c657f;font-size:12px}
.inspector-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.inspector-actions .soft-button,.inspector-actions .quiet-button{font-size:11px;padding:6px 10px;min-height:32px;gap:6px}
/* The opening is driven by the same reversible, pausable progress as playback. */
.opening-layer{position:absolute;inset:0;pointer-events:none;z-index:4;overflow:hidden;background:transparent}
.opening-layer[hidden]{display:none}
.is-opening #node-layer,.is-opening #edges,.is-opening #containment-edges,.is-opening #branch-labels,.is-opening .canvas-guide{visibility:hidden}
.opening-sentence{position:absolute;left:50%;top:43%;transform:translate(-50%,-50%);width:min(820px,calc(100% - 64px));font-size:22px;line-height:1.95;color:#32445a;letter-spacing:-.00625em;font-weight:550;white-space:normal;transform-origin:0 0}
.opening-sentence span{border-radius:5px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.opening-caption{position:absolute;left:24px;right:24px;top:64%;text-align:center;font-size:11px;color:#93a0b2;letter-spacing:.8px}
.opening-card{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform,opacity}
.opening-face.node-card{position:absolute;left:0;top:0;min-height:0;transform-origin:0 0;transition:none;pointer-events:none;margin:0}
.opening-fragment{position:absolute;left:0;top:0;font-size:22px;line-height:1.95;color:var(--tone);overflow-wrap:anywhere;width:100%;transform-origin:0 0}
/* Browser fullscreen and its local fallback share exactly the same layout. */
#workbench:fullscreen,#workbench.canvas-fullscreen{width:100vw;height:100dvh;max-width:none;max-height:none;border:0;border-radius:0;display:flex;flex-direction:column;background:#fff;overflow:hidden}
#workbench.canvas-fullscreen{position:fixed;inset:0;z-index:1000}
#workbench:fullscreen>.bench-toolbar,#workbench.canvas-fullscreen>.bench-toolbar{padding:10px 22px;flex:none}
#workbench:fullscreen>.original-sentence,#workbench.canvas-fullscreen>.original-sentence{font-size:16px;padding:12px 26px;max-height:100px;overflow:auto;flex:none;line-height:1.7}
#workbench:fullscreen>.canvas-tools,#workbench.canvas-fullscreen>.canvas-tools{padding:8px 22px;flex:none}
#workbench:fullscreen .sentence-scene,#workbench.canvas-fullscreen .sentence-scene{flex:1;min-height:0;overflow:auto}
#workbench:fullscreen #structure-scene,#workbench.canvas-fullscreen #structure-scene{display:flex;flex-direction:column;height:100%}
#workbench:fullscreen .structure-panel,#workbench.canvas-fullscreen .structure-panel{display:flex;flex-direction:column;flex:1;min-height:0}
#workbench:fullscreen .structure-panel[hidden],#workbench.canvas-fullscreen .structure-panel[hidden]{display:none}
#workbench:fullscreen .diagram-viewport,#workbench.canvas-fullscreen .diagram-viewport{flex:1;min-height:180px;height:auto}
#workbench:fullscreen .canvas-heading,#workbench.canvas-fullscreen .canvas-heading{padding:8px 22px}
#workbench:fullscreen .legend,#workbench.canvas-fullscreen .legend{padding:8px 22px;flex:none}
#workbench:fullscreen .playback,#workbench.canvas-fullscreen .playback{padding:12px 22px;row-gap:9px;flex:none}
#workbench:fullscreen .sentence-scene.is-morphing,#workbench.canvas-fullscreen .sentence-scene.is-morphing{overflow:hidden}
#workbench:fullscreen .sentence-scene.is-morphing #structure-scene,#workbench.canvas-fullscreen .sentence-scene.is-morphing #structure-scene{height:auto}
#workbench:fullscreen .sentence-scene.is-morphing .diagram-viewport,#workbench.canvas-fullscreen .sentence-scene.is-morphing .diagram-viewport{height:var(--bridge-viewport-height,500px);flex:none}
@media(max-width:900px){.canvas-tools{padding:10px 16px;gap:8px}.canvas-title{display:none}.canvas-tools-group{gap:6px}.canvas-tools .quiet-button{font-size:10px}}
@media(max-width:600px){.canvas-tools{padding:10px 12px}.canvas-tools-group:first-child{width:100%}.canvas-tools-group:last-child{margin-left:auto}.canvas-tools #canvas-count{margin-left:auto}.diagram-viewport{height:560px}.canvas-guide{left:10px;bottom:10px;font-size:9px}.canvas-inspector{right:10px;bottom:10px;width:min(300px,calc(100% - 20px));max-height:55%;padding:16px}.canvas-hint::after{content:"拖动空白平移 · 滚轮缩放"}.opening-sentence{font-size:19px;width:calc(100% - 40px);top:40%;line-height:1.8}.opening-caption{top:73%;font-size:10px}.canvas-heading{padding-bottom:10px}.step-labels button{font-size:8px}#workbench:fullscreen>.original-sentence,#workbench.canvas-fullscreen>.original-sentence{font-size:13px;padding:8px 14px;max-height:96px}#workbench:fullscreen .playback,#workbench.canvas-fullscreen .playback{padding:10px 12px}#workbench:fullscreen .canvas-tools,#workbench.canvas-fullscreen .canvas-tools{padding:8px 12px}.scope-feedback{padding:8px 12px}}

.opening-word{position:absolute;left:0;top:0;line-height:1.5;white-space:pre;transform-origin:0 0;color:var(--tone);font-weight:550;letter-spacing:-.00625em;pointer-events:none;will-change:transform,opacity}

.is-opening #node-layer .node-card{transition:none!important}

.opening-phrase{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform,opacity}

/* Recursive tour: the camera and branch reveal share the pausable frame clock. */
.is-touring .node-card{transition:none!important}
.node-card.tour-current{border-color:var(--tone);box-shadow:0 0 0 2px var(--tone-bg),0 8px 22px #26466820}
.is-touring .canvas-guide{visibility:hidden}
.tour-caption{position:absolute;left:50%;bottom:17px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 32px);padding:10px 18px;border:1px solid #e1e7ef;border-radius:13px;background:#ffffffed;box-shadow:0 4px 18px #243c5710;pointer-events:none;z-index:5;text-align:center}
.tour-caption[hidden]{display:none}
.tour-caption span{display:block;color:#6c7f98;font-size:11px;margin-bottom:3px}
.tour-caption strong{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#29425e;font-size:13px;font-weight:500;line-height:1.5;max-width:560px}

.tour-timeline-labels{display:flex;justify-content:space-between;gap:8px;padding-top:4px;font-size:10px;color:#788596}
#tour-timeline-current{color:var(--blue);font-variant-numeric:tabular-nums}

.canvas-tools .expansion-mode[aria-pressed=true]{color:var(--blue);background:var(--blue-light);border-color:#bed3f2}

.challenge-picker{margin:16px auto 0;max-width:650px;text-align:left;font-size:12px;color:var(--muted)}
.challenge-picker summary{cursor:pointer;text-align:center;padding:4px}
.challenge-picker select{margin-top:10px;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);font:inherit}

/* Read-through uses the same meaning pieces as the translation animation. */
.translation-alignment-help{font-size:11px;color:#7b899c;line-height:1.8;margin-top:15px}
.translation-alignment-help>p{margin:0}.translation-alignment-help details{margin-top:8px;max-width:920px}
.translation-alignment-help summary{cursor:pointer;color:#63758e;width:fit-content}
.translation-alignment-help details p{display:flex;gap:16px;margin:8px 0;padding:8px 12px;background:#f8fafc;border-radius:8px}
.translation-alignment-help b{font-weight:500;color:#405775;min-width:35px}.translation-alignment-help span{flex:1}
.translation-block strong{line-height:1.45}.translation-block>span[lang=en]{line-height:1.45}

.analysis-feedback{font-size:12px;line-height:1.7;color:#687c96;margin:0 3px 13px;overflow-wrap:anywhere}.analysis-feedback:empty{display:none}
.loading-panel.compact-loading{padding-top:14px;padding-bottom:14px}.compact-loading .loading-orbit{width:20px;height:20px}.compact-loading h2{font-size:15px}

/* Shared text travels from the grammar face; only the destination handoff fades. */
.translation-flight-word{position:absolute;left:0;top:0;display:block;text-align:center;white-space:pre;line-height:1;pointer-events:none;transform-origin:0 0;z-index:5;will-change:transform;visibility:visible}
.translation-source-face{position:absolute!important;left:0!important;top:0!important;margin:0!important;transition:none!important;transform-origin:0 0;pointer-events:none!important}

/* Context actions appear only for a deliberate right-click on a canvas card. */
.canvas-context-menu{position:absolute;z-index:9;display:flex;flex-direction:column;gap:3px;min-width:210px;max-width:calc(100% - 16px);padding:6px;background:#fffffff5;border:1px solid #dce5ef;border-radius:12px;box-shadow:0 12px 34px #26364b2b;backdrop-filter:blur(16px)}
.canvas-context-menu[hidden]{display:none}
.canvas-context-heading{display:flex;flex-direction:column;gap:3px;padding:8px 10px 9px;border-bottom:1px solid #edf1f6;margin-bottom:2px;color:var(--tone);font-size:10px}
.canvas-context-heading strong{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#40536b;font-size:12px;line-height:1.5;font-weight:550;overflow-wrap:anywhere}
.canvas-context-menu button{min-height:36px;padding:8px 10px;border-radius:8px;text-align:left;font-size:12px;color:#43566e}
.canvas-context-menu button:hover:not(:disabled){background:#f1f5fa}
.canvas-context-menu button:disabled{color:#8b97a7;opacity:.7}
.canvas-context-note{padding:1px 10px 5px;color:#8492a4;font-size:10px;line-height:1.6}
.canvas-context-note:empty{display:none}
.canvas-context-hint{font-size:10px;color:#8392a5;white-space:nowrap}
@media(max-width:600px){.canvas-context-hint{font-size:9px}}

/* Welcome guide — scoped styles; existing website and canvas are unchanged. */
#welcome-dialog{width:min(1120px,calc(100% - 32px));height:min(850px,calc(100vh - 32px));height:min(850px,calc(100dvh - 32px));max-width:none;max-height:none;padding:0;border:1px solid #e1e7ee;border-radius:26px;overflow:hidden;background:#fff;color:#263342;box-shadow:0 28px 100px #152d4933}
#welcome-dialog[open]{display:flex;flex-direction:column}#welcome-dialog::backdrop{background:#26384d66;backdrop-filter:blur(7px)}
#welcome-dialog button,#welcome-dialog select{font:inherit}#welcome-dialog button{cursor:pointer}#welcome-dialog h2,#welcome-dialog h3,#welcome-dialog h4,#welcome-dialog p{margin:0}#welcome-dialog h4{font-weight:600}
.welcome-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 26px;border-bottom:1px solid #e9edf2;background:#fff}
.welcome-wordmark{font-size:18px;font-weight:650;letter-spacing:2px;white-space:nowrap}.welcome-wordmark small{margin-left:12px;font-size:11px;letter-spacing:0;color:#758193;font-weight:400}.welcome-header nav{display:flex;gap:26px}.welcome-header nav button{padding:6px 0;font-size:13px!important;color:#607084}.welcome-header nav button:hover{color:#1765d7}
#welcome-dialog .welcome-close{width:36px;height:36px;border-radius:50%;background:#f1f4f7;font-size:24px;line-height:1;flex-shrink:0;color:#607084}
.welcome-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;padding:0 38px;scroll-behavior:smooth}
.welcome-scroll section{scroll-margin-top:24px}.welcome-about{display:grid;grid-template-columns:1.1fr 1fr;gap:38px;align-items:center;padding:46px 0 42px}.welcome-eyebrow{display:block;color:#667f9c;font-size:11px;letter-spacing:1.5px;font-weight:500}.welcome-eyebrow>span{display:inline-block;width:5px;height:5px;background:#1765d7;border-radius:50%;margin-right:8px;vertical-align:middle}
#welcome-dialog #welcome-title{margin:19px 0 22px;font-size:clamp(28px,3.1vw,39px);line-height:1.4;letter-spacing:-1.3px;font-weight:650;outline:none}#welcome-title span{color:#476b98}.welcome-lead{font-size:17px;line-height:1.8;color:#35485f}.welcome-description{margin-top:12px!important;font-size:13px;color:#69798b;line-height:1.95;max-width:410px}
#welcome-dialog .welcome-text-link{font-size:12px;font-weight:500;color:#1765d7;padding:10px 0;white-space:nowrap}.welcome-introduction>.welcome-text-link{margin-top:18px}.welcome-text-link>span{margin-left:10px}
.welcome-preview{border:1px solid #e4ebf5;border-radius:20px;padding:30px 22px;background:linear-gradient(145deg,#f3f7fe,#f9fbfd);box-shadow:0 16px 35px #38577807}.welcome-preview-caption{font-size:11px;letter-spacing:1px;color:#7587a0}.welcome-example{margin-top:20px!important;font-size:21px;line-height:1.65;color:#334862}.welcome-mini-diagram{display:grid;grid-template-columns:1.15fr 12px .8fr 12px 1fr;align-items:center;gap:5px;margin-top:28px}.welcome-mini-card{min-height:108px;display:flex;flex-direction:column;justify-content:center;gap:8px;padding:12px 6px;border:1px solid #cdddf5;border-radius:10px;background:#fff;text-align:center;box-shadow:0 4px 0 #e6edf680}.welcome-mini-card small{font-size:9px;color:#3974bf}.welcome-mini-card strong{font-size:13px;line-height:1.45;font-weight:600}.welcome-mini-card>span{font-size:11px;color:#778598}.welcome-predicate{border-color:#f0d8c7}.welcome-predicate small{color:#b37047}.welcome-object{border-color:#c5ded6}.welcome-object small{color:#3f7f6f}.welcome-mini-arrow{font-size:15px;color:#9baec5;text-align:center}.welcome-preview-note{font-size:11px;color:#78889c;margin-top:23px!important;text-align:center}
.welcome-how{padding:34px 0 38px;border-top:1px solid #e6ebf1}.welcome-section-heading h3,.welcome-feedback h3{font-size:25px;letter-spacing:-.6px;margin:8px 0 10px!important}.welcome-section-heading>p,.welcome-feedback-body>p{font-size:13px;color:#69798b;line-height:1.9}.welcome-steps{padding:0;list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin:26px 0}.welcome-step-no{display:block;font-size:12px;color:#6584aa;margin-bottom:12px;font-variant-numeric:tabular-nums}.welcome-steps h4{font-size:15px;margin-bottom:9px!important}.welcome-steps p{font-size:12px;line-height:1.9;color:#69798b}.welcome-notice{padding:17px 20px;border-radius:12px;background:#f6f8fb;font-size:11px;color:#6c7d91;line-height:1.9}.welcome-notice strong{font-size:12px;color:#506783}.welcome-notice p{margin-top:5px!important}
.welcome-feedback{display:grid;grid-template-columns:minmax(0,1fr) 252px;gap:38px;padding:34px 0 38px;border-top:1px solid #e6ebf1}.welcome-field-label{display:block;font-size:12px;font-weight:500;color:#52667f;margin:17px 0 7px}#welcome-dialog select{max-width:100%;border:1px solid #dce4ef;border-radius:9px;padding:7px 30px 7px 10px;background:white;font-size:12px;color:#4e6580}#welcome-dialog textarea{margin:0;width:100%;min-height:96px;max-height:230px;padding:12px 14px;border:1px solid #dce4ef;border-radius:11px;outline:revert!important;font-size:13px;line-height:1.8;background:#fff;color:#334862;resize:vertical}#welcome-dialog textarea::placeholder{font-size:12px;color:#7d8998}#welcome-dialog textarea:focus{border-color:#6d9ce1}.welcome-feedback-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:14px}.welcome-feedback-actions>span{font-size:10px;color:#7b899a}#welcome-dialog .welcome-feedback-status{margin-top:12px;font-size:11px;color:#6c7d91;line-height:1.8}.welcome-qr{align-self:start;padding:12px 13px 22px;border:1px solid #e2e8ee;border-radius:16px;background:#fbfcfe;text-align:center}.welcome-qr img{display:block;width:100%;height:auto;border-radius:10px;background:white}.welcome-qr h4{font-size:15px;margin:9px 0!important}.welcome-qr p{font-size:11px;line-height:1.9;color:#738296}
.welcome-bottom{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 26px;border-top:1px solid #e6ebf1;background:#fff}.welcome-bottom>span{font-size:12px;color:#708198}.welcome-bottom>div{display:flex;align-items:center;gap:14px}#welcome-dialog .welcome-primary,#welcome-dialog .welcome-secondary{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:42px;border-radius:12px;padding:10px 18px;font-size:12px;font-weight:500;white-space:nowrap}#welcome-dialog .welcome-primary{background:#1765d7;color:#fff;box-shadow:0 4px 12px #1765d71a}#welcome-dialog .welcome-secondary{background:#f4f7fb;color:#456286;border:1px solid #e2e9f3}
@media(max-width:760px){#welcome-dialog{border-radius:20px}.welcome-header{padding:14px 18px;gap:10px}.welcome-wordmark small{display:none}.welcome-header nav{gap:16px}.welcome-header nav button{font-size:11px!important}.welcome-scroll{padding:0 24px}.welcome-about{grid-template-columns:1fr;gap:26px;padding:30px 0}.welcome-introduction{max-width:520px}.welcome-description{max-width:none}.welcome-preview{padding:22px}.welcome-mini-card{min-height:92px}.welcome-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.welcome-feedback{grid-template-columns:1fr;gap:26px}.welcome-qr{width:252px;max-width:100%;justify-self:center}.welcome-bottom{padding:14px 18px}.welcome-bottom>span{display:none}.welcome-bottom>div{width:100%;justify-content:space-between;gap:9px}.welcome-section-heading h3,.welcome-feedback h3{font-size:23px}}
@media(max-width:400px){#welcome-dialog{width:calc(100% - 16px);height:calc(100vh - 16px);height:calc(100dvh - 16px)}.welcome-header{padding:12px}.welcome-header nav{gap:12px}.welcome-wordmark{font-size:16px;letter-spacing:0}.welcome-scroll{padding:0 18px}#welcome-dialog #welcome-title{font-size:27px}.welcome-preview{padding:20px 12px}.welcome-example{font-size:19px}.welcome-mini-card strong{font-size:12px}.welcome-bottom{padding:12px}#welcome-dialog .welcome-primary,#welcome-dialog .welcome-secondary{padding:9px 12px;font-size:11px}.welcome-bottom .welcome-text-link{font-size:11px!important}}
@media(prefers-reduced-motion:reduce){.welcome-scroll{scroll-behavior:auto}}

/* Only the welcome page's upper-right example becomes an animated preview. */
.welcome-live-preview{min-width:0;padding:23px 18px 20px;overflow:hidden}.welcome-live-top{display:flex;align-items:center;justify-content:space-between;gap:8px}#welcome-dialog #welcome-animation-toggle{flex-shrink:0;font-size:10px;color:#567193;padding:5px 8px;border-radius:7px;background:#ffffffb3;border:1px solid #e0e8f2;min-height:30px}.welcome-live-preview #welcome-animation{display:block;width:100%;height:auto;aspect-ratio:640/370;margin:13px 0 9px;overflow:visible;fill:none;stroke:none}.welcome-live-preview #welcome-animation text{font-family:var(--font);stroke:none}.welcome-live-preview #welcome-animation .welcome-demo-word{font-size:21px;font-weight:550}.welcome-live-preview #welcome-animation .welcome-demo-label{font-size:12px}.welcome-live-preview #welcome-animation .welcome-demo-gloss{font-size:16px;fill:#718198}.welcome-live-preview #welcome-animation .welcome-demo-card{stroke-width:1.15;fill:#fff;filter:drop-shadow(0 4px 2px #38577808)}.welcome-live-preview #welcome-animation .welcome-demo-edge{fill:none;stroke:#a5b8d1;stroke-width:1.8;stroke-linecap:round}.welcome-live-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:23px}.welcome-live-preview .welcome-preview-note{margin:0!important;text-align:left;font-size:11px;color:#4b6b94}.welcome-live-bottom>span{font-size:9px;color:#8492a4;white-space:nowrap}.welcome-animation-track{margin-top:12px;height:2px;background:#e3eaf4;overflow:hidden;border-radius:2px}.welcome-animation-track>span{display:block;width:100%;height:100%;background:#7399ce;transform-origin:left;transform:scaleX(0)}
@media(max-width:400px){.welcome-live-preview{padding:18px 11px}.welcome-live-top .welcome-preview-caption{font-size:10px;letter-spacing:0}.welcome-live-bottom>span{font-size:8px}}