@charset "UTF-8";
:root{--paper:#f4f4ed;--ink:#20231f;--muted:#6d7167;--line:#d7dacf;--accent:#d4f568;--white:#fff;--sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--serif:"Songti SC","STSong",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit;color:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:0}button:disabled{cursor:not-allowed}button,a,input,textarea,select,summary{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid #477221}::selection{background:var(--accent);color:var(--ink)}[hidden]{display:none!important}h1,h2,h3,h4,p{margin:0}img,iframe{max-width:100%}.page-width{width:min(1440px,calc(100% - 96px));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;top:12px;left:12px;padding:12px 20px;z-index:10;background:var(--accent);transform:translateY(-150%)}.skip-link:focus{transform:none}
.masthead{height:108px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:650;letter-spacing:.08em;line-height:1.15}.brand-symbol{display:grid;place-items:center;width:43px;height:43px;border:2px solid var(--ink);font-family:var(--serif);font-size:28px;font-weight:700;position:relative}.brand-symbol:after{content:"";position:absolute;width:8px;height:8px;background:var(--accent);right:-5px;bottom:-5px;border:2px solid var(--paper)}.brand-description{display:block;font-size:10px;font-weight:450;letter-spacing:.16em;margin-top:7px}.masthead nav{display:flex;gap:36px;font-size:13px}.masthead nav a{padding:10px 0}.masthead nav a:hover{box-shadow:0 1px currentColor}.masthead nav span{margin-left:8px}
.hero{padding-top:76px;padding-bottom:70px;display:grid;grid-template-columns:1fr 1.02fr;gap:7%}.eyebrow{font-size:11px;letter-spacing:.13em;font-weight:550}.signal{display:inline-block;height:6px;width:6px;background:#74983c;margin:0 8px 2px 0}.hero h1{font-size:clamp(36px,4.6vw,72px);font-weight:550;line-height:1.25;letter-spacing:-.055em;margin:35px 0 26px;white-space:nowrap}.hero-serif{font-family:var(--serif);font-weight:600;position:relative;letter-spacing:-.04em}.hero-serif:after{content:"";position:absolute;bottom:4px;height:9px;background:var(--accent);left:0;right:0;z-index:-1}.hero-intro{font-size:16px;line-height:1.95;color:#5c6258}.primary-link{display:inline-flex;gap:46px;align-items:center;background:var(--ink);color:white;padding:16px 22px;margin-top:32px;font-size:13px}.primary-link:hover{background:#3b4730}.primary-link span{color:var(--accent);font-size:20px}.hero-footnote{display:flex;gap:20px;margin-top:37px;font-size:10px;color:var(--muted);letter-spacing:.07em}.hero-footnote span+span:before{content:"/";margin-right:20px;color:#a6ada0}
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.index-intro{display:flex;justify-content:space-between;align-items:center;border-block:1px solid var(--line);padding-block:22px;font-size:11px;color:var(--muted);gap:24px}.intro-dot{display:inline-block;width:6px;height:6px;background:#a5b88c;border-radius:50%;margin:0 8px 1px 0}.index-intro>div{display:flex;gap:30px;white-space:nowrap}.index-intro strong{font-family:var(--sans);font-size:22px;font-weight:500;color:var(--ink);margin-right:5px}.playground{padding-block:74px 68px}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:32px}.section-heading h2{font-size:32px;font-weight:550;letter-spacing:-.04em;margin-top:13px}.section-heading>p{font-size:12px;line-height:1.8;color:var(--muted);text-align:right}.data-error{border:1px solid #d2b092;background:#fff4e7;padding:18px;margin-bottom:20px;white-space:pre-line}
.workbench{display:grid;grid-template-columns:265px minmax(0,1fr);background:var(--white);border:1px solid #cdd1c3}.case-sidebar{border-right:1px solid var(--line);padding:23px 16px 17px;background:#f9faf5;min-width:0}.sidebar-heading{display:flex;justify-content:space-between;align-items:center;padding:0 4px;margin-bottom:18px}.sidebar-heading h3{font-size:14px;font-weight:600}.sidebar-heading>span{color:var(--muted);font-size:10px}.search-field{display:flex;align-items:center;border:1px solid var(--line);background:white;padding:6px 10px;gap:8px}.search-field>span[aria-hidden]{font-size:22px;line-height:1;color:#707a64}.search-field input{border:0;width:100%;min-width:0;background:transparent;font-size:11px;padding:3px 0;outline-offset:2px}.category-field{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted);margin:14px 3px 10px}.category-field select{max-width:70%;font-size:10px;border:0;background:transparent;padding:4px 0}.kind-filters{display:flex;flex-wrap:wrap;gap:4px;padding-bottom:17px;border-bottom:1px solid var(--line)}.kind-filters button{padding:5px 7px;background:transparent;color:var(--muted);font-size:9px;white-space:nowrap}.kind-filters button[aria-pressed="true"]{background:#e5eccf;color:#314420}.case-list{max-height:690px;overflow:auto;scrollbar-width:thin;padding-top:8px}.case-item{display:grid;grid-template-columns:25px minmax(0,1fr);width:100%;gap:7px;text-align:left;position:relative;border-bottom:1px solid #e7e9e0;padding:13px 9px;background:transparent;line-height:1.45}.case-item:hover{background:#edf1e5}.case-item[aria-pressed="true"]{background:var(--ink);color:white;border-color:var(--ink)}.case-item[aria-pressed="true"]:after{content:"↗";position:absolute;right:9px;top:14px;color:var(--accent);font-size:12px}.item-number{color:#a0a694;font-size:10px;padding-top:2px;font-variant-numeric:tabular-nums}.item-title{display:block;font-size:12px;font-weight:550;padding-right:12px}.item-meta{display:block;font-size:9px;color:#858d7b;margin-top:7px}.case-item[aria-pressed="true"] .item-meta{color:#b5bfa8}.sidebar-note{font-size:9px;color:var(--muted);line-height:1.8;padding:18px 5px 0}.list-placeholder{font-size:12px;color:var(--muted);padding:24px 8px}
.preview-panel{min-width:0;padding:27px 28px 21px}.case-heading{display:flex;justify-content:space-between;gap:16px;min-height:118px}.case-meta{font-size:10px;color:var(--muted);letter-spacing:.03em}.case-heading h3{font-size:24px;font-weight:550;letter-spacing:-.03em;margin-top:7px}.case-heading #case-brief{font-size:11px;color:var(--muted);margin-top:8px;max-width:530px}.case-number{font-size:49px;font-weight:300;color:#dde1d4;line-height:1;font-variant-numeric:tabular-nums;padding-top:3px}.condition-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-bottom:1px solid var(--ink);gap:3px}.condition-tabs button{padding:13px 10px;background:#f1f3eb;color:#666f5d;text-align:left;font-size:11px;white-space:nowrap}.condition-tabs button span{font-size:9px;color:#9ba58e;margin-right:8px}.condition-tabs button[aria-pressed="true"]{background:var(--ink);color:white}.condition-tabs button[aria-pressed="true"] span{color:var(--accent)}.preview-toolbar{display:flex;justify-content:space-between;align-items:center;padding:13px 0;min-height:60px;gap:12px}.device-switch{display:flex;gap:4px}.device-switch button{background:transparent;color:#929986;font-size:10px;padding:6px 9px}.device-switch button span{font-size:14px;margin-right:4px}.device-switch button[aria-pressed="true"]{background:#edf0e5;color:var(--ink)}.text-link{font-size:10px}.text-link:hover,.evidence-link:hover{text-decoration:underline}.text-link span{margin-left:8px}.preview-stage{padding:20px;background:#e9ece3;min-height:390px;overflow:hidden;position:relative;border:1px solid #e0e4d7;display:flex;justify-content:center;align-items:flex-start}.frame-shell{position:relative;flex-shrink:0;overflow:hidden;background:white;box-shadow:0 2px 12px #20231f12}.frame-shell iframe{position:absolute;left:0;top:0;border:0;max-width:none;transform-origin:top left;background:white}.empty-state{align-self:center;text-align:center;max-width:360px;padding:50px 12px;color:var(--muted)}.empty-mark{display:inline-grid;place-items:center;font-size:30px;font-family:var(--serif);width:55px;height:55px;border:1px solid #bcc7ae;color:#9ba98b;margin-bottom:22px}.empty-state h4{font-size:16px;color:#555f49;font-weight:500;margin-bottom:10px}.empty-state p{font-size:11px;line-height:1.9}.preview-caption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:9px;color:#8c9481;margin-top:9px}.evidence-status{margin-top:21px;padding:12px 14px;border-left:2px solid #b2c38f;background:#f5f7ef;font-size:10px;line-height:1.9;color:#687359;white-space:pre-line}.task-details{border-bottom:1px solid var(--line);margin-top:8px}.task-details summary{list-style:none;cursor:pointer;font-size:11px;padding:16px 0;display:flex;justify-content:space-between}.task-details summary::-webkit-details-marker{display:none}.task-details[open] summary span{transform:rotate(45deg)}.task-details #case-task{font-size:12px;line-height:1.95;color:#68715f;padding:0 0 18px;white-space:pre-wrap;overflow-wrap:anywhere}.evidence-link{display:inline-block;font-size:10px;margin-top:15px}
.principles{display:grid;grid-template-columns:.85fr 1.15fr;gap:12%;padding-block:60px 76px;border-top:1px solid var(--line)}.principles-title h2{font-family:var(--serif);font-size:37px;line-height:1.4;font-weight:550;letter-spacing:-.02em;margin-top:24px}.principles-title>p:last-child{font-size:12px;line-height:1.9;color:var(--muted);margin-top:23px}.principle-list article{display:flex;gap:25px;padding:23px 0;border-bottom:1px solid var(--line)}.principle-list article:first-child{padding-top:0}.principle-list article>span{font-size:11px;color:#8e9b80;padding-top:2px;font-variant-numeric:tabular-nums}.principle-list h3{font-size:16px;font-weight:550;margin-bottom:9px}.principle-list p{font-size:12px;color:var(--muted);line-height:1.9;max-width:400px}.reading-note{border-top:1px solid var(--line);padding:29px 0 42px;display:grid;grid-template-columns:1fr 3fr;gap:20px 35px}.reading-note h2{font-size:12px;font-weight:500}.reading-note>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.reading-note p{font-size:10px;color:var(--muted);line-height:1.9}.reading-note strong{display:block;font-size:11px;font-weight:550;color:#535d48;margin-bottom:7px}.status-footnote{grid-column:2}.footer{padding:25px 0 35px;border-top:1px solid var(--ink);display:flex;justify-content:space-between;align-items:center;gap:20px}.footer-brand{font-size:22px;font-family:var(--serif);font-weight:650}.footer-brand span{font-family:var(--sans);font-size:9px;color:var(--muted);font-weight:400;margin-left:18px}.footer>p,.footer>a:last-child{font-size:10px;color:var(--muted)}
.skip-link{opacity:0;pointer-events:none}.skip-link:focus{opacity:1;pointer-events:auto}
@media(min-width:1600px){.hero{gap:10%}.type-canvas{height:335px}}
@media(max-width:1100px){.page-width{width:calc(100% - 56px)}.hero{gap:5%;padding-top:55px}.hero h1{font-size:48px}.hero-intro{font-size:14px}.type-canvas{padding-inline:24px}.type-composition p{font-size:30px}.hero-footnote{gap:13px}.hero-footnote span+span:before{margin-right:13px}.workbench{grid-template-columns:220px minmax(0,1fr)}.preview-panel{padding:24px 20px 20px}.condition-tabs button{font-size:10px;padding:12px 7px}.condition-tabs button span{margin-right:4px}.section-heading h2{font-size:28px}.reading-note{grid-template-columns:1fr 3.4fr}}
@media(max-width:800px){.page-width{width:calc(100% - 40px)}.masthead{height:89px}.masthead nav{gap:20px;font-size:11px}.brand{font-size:23px}.brand-description{font-size:9px}.hero{grid-template-columns:1fr;gap:38px;padding-top:48px;padding-bottom:45px}.hero h1{font-size:60px;line-height:1.2;margin-top:24px}.hero-intro{font-size:15px}.hero-footnote{margin-top:25px}.typesetter{width:100%;max-width:600px}.type-canvas{height:300px}.type-composition p{font-size:38px}.type-controls{grid-template-columns:1.4fr 1fr}.index-intro{align-items:start;flex-direction:column;gap:13px;padding-block:20px}.index-intro>div{width:100%;justify-content:space-between;gap:12px}.playground{padding-top:47px}.section-heading{align-items:start;gap:15px}.section-heading h2{font-size:26px;max-width:13em}.section-heading>p{font-size:10px;flex-shrink:0;padding-top:28px}.workbench{grid-template-columns:1fr}.case-sidebar{border-right:0;border-bottom:1px solid var(--line);padding:20px}.sidebar-heading{margin-bottom:13px}.category-field{margin:10px 0 7px}.kind-filters{padding-bottom:11px}.case-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-height:235px;gap:1px 8px}.case-item{padding:10px 8px}.item-title{font-size:11px}.item-meta{font-size:8px;margin-top:4px}.sidebar-note{display:none}.preview-panel{padding:25px 20px 20px}.case-heading{min-height:118px}.case-heading h3{font-size:23px}.case-number{font-size:44px}.condition-tabs button{font-size:11px;padding:14px 12px}.preview-stage{padding:16px;min-height:360px}.principles{gap:8%;padding-block:45px;grid-template-columns:.85fr 1.15fr}.principles-title h2{font-size:29px}.principle-list article{gap:15px;padding:19px 0}.principle-list h3{font-size:14px}.principle-list p{font-size:11px}.reading-note{grid-template-columns:1fr;gap:17px;padding-bottom:30px}.reading-note>div{gap:20px}.status-footnote{grid-column:1}.footer>p{display:none}}
@media(max-width:480px){.page-width{width:calc(100% - 32px)}.masthead{height:80px}.masthead nav{gap:0}.masthead nav a:last-child{display:none}.brand{gap:9px;font-size:22px}.brand-symbol{width:35px;height:35px;font-size:23px}.brand-description{font-size:8px;letter-spacing:.08em}.hero{padding-top:35px;gap:30px}.eyebrow{font-size:9px;letter-spacing:.08em}.hero h1{font-size:44px;letter-spacing:-.05em;margin:25px 0 21px}.hero-intro{font-size:13px;line-height:1.9}.primary-link{font-size:12px;padding:13px 18px;margin-top:24px}.hero-footnote{font-size:9px}.typesetter{box-shadow:5px 5px 0 #e4e7db}.typesetter-bar{padding:10px 12px;font-size:8px}.demo-badge{font-size:8px}.type-canvas{height:264px;padding:27px 22px}.canvas-note{font-size:8px;left:22px}.type-composition p{font-size:29px;line-height:1.5}.composition-index{font-size:10px}.composition-caption{font-size:8px;letter-spacing:0}.type-canvas[data-layout="narrow"] .type-composition{width:79%}.type-canvas[data-layout="narrow"] .type-composition p{font-size:25px}.type-controls{gap:13px;padding:12px;grid-template-columns:1.2fr 1fr}.type-controls label{font-size:9px}.type-controls textarea,.type-controls select{font-size:10px}.index-intro{font-size:9px}.index-intro strong{font-size:20px}.index-intro>div{gap:8px;font-size:9px}.section-heading{flex-direction:column;gap:8px;margin-bottom:22px}.section-heading h2{font-size:25px;max-width:none}.section-heading>p{text-align:left;padding:0;font-size:10px}.section-heading>p br{display:none}.section-heading>p br:after{content:" "}.case-sidebar{padding:16px 13px}.case-list{gap:0 5px;max-height:228px}.case-item{grid-template-columns:18px minmax(0,1fr);gap:5px;padding-inline:4px}.case-item[aria-pressed="true"]:after{display:none}.item-title{font-size:10px;padding-right:0}.item-meta{font-size:8px}.preview-panel{padding:20px 12px 16px}.case-heading{gap:8px;min-height:135px}.case-heading h3{font-size:21px}.case-heading #case-brief{font-size:10px}.case-number{font-size:33px}.case-meta{font-size:9px}.condition-tabs{gap:2px}.condition-tabs button{font-size:9px;padding:11px 4px;text-align:center}.condition-tabs button span{display:block;font-size:8px;margin:0 0 2px}.preview-toolbar{min-height:54px;padding:9px 0}.device-switch button{font-size:9px;padding:5px}.text-link{font-size:9px}.text-link span{margin-left:2px}.preview-stage{padding:10px;min-height:300px}.preview-caption{font-size:8px;gap:3px}.evidence-status{font-size:9px;padding:10px;margin-top:17px}.task-details summary{font-size:10px}.task-details #case-task{font-size:11px}.principles{grid-template-columns:1fr;gap:30px}.principles-title h2{font-size:32px;margin-top:16px}.principles-title h2 br{display:none}.principles-title>p:last-child{margin-top:13px;font-size:11px}.principles-title>p:last-child br{display:none}.principle-list article{padding:20px 0;gap:20px}.principle-list h3{font-size:15px}.principle-list p{font-size:11px}.reading-note>div{grid-template-columns:1fr;gap:17px}.reading-note strong{margin-bottom:3px}.footer{align-items:start;padding-top:20px}.footer-brand{font-size:21px}.footer-brand span{display:block;font-size:8px;margin:4px 0 0}.footer>a:last-child{font-size:9px}}
@media(max-width:350px){.hero h1{font-size:38px}.type-composition p{font-size:25px}.type-canvas{padding-inline:17px}.composition-caption{font-size:7px}.index-intro>div{font-size:8px}.index-intro strong{font-size:18px}.section-heading h2{font-size:22px}.condition-tabs button{font-size:8px}.preview-stage{min-height:285px}.case-list{grid-template-columns:1fr}.case-item{grid-template-columns:23px minmax(0,1fr)}.item-title{font-size:11px}.item-meta{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}