@import url('/fonts.css');
:root{--night:#0a1721;--night2:#102631;--paper:#f6f5ef;--white:#fff;--ink:#102b35;--muted:#526770;--line:#cbd5d3;--mint:#9ee6cf;--green:#175b4d;--amber:#edb46a;--red:#a33333;--mono:Consolas,'SFMono-Regular',monospace;--sans:'Segoe UI','Microsoft JhengHei',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.8 var(--sans)}a{color:inherit;text-underline-offset:5px}button,input,textarea{font:inherit}button,a,input,textarea{touch-action:manipulation}button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:12px 22px;border:1px solid transparent;border-radius:5px;cursor:pointer;text-decoration:none;font-size:15px;font-weight:650;line-height:1.5;background:var(--green);color:var(--white)}button:hover,.btn:hover{filter:brightness(1.08)}button.alt,.btn.alt{border-color:currentColor;background:transparent;color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #d48e2e;outline-offset:5px}button:disabled{opacity:.5;cursor:default}header{height:88px;max-width:1280px;margin:auto;padding:0 36px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;display:flex;align-items:center;gap:12px;font-size:14px;font-weight:700;letter-spacing:.02em}.brand-mark{width:27px;height:27px;border:1px solid currentColor;display:grid;place-items:center;transform:rotate(45deg)}.brand-mark:after{content:'';width:8px;height:8px;background:var(--mint)}nav{display:flex;align-items:center;gap:26px;font-size:14px}nav a{text-decoration:none}nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--mint);text-decoration-thickness:2px}.dark{background:var(--night);color:#f5f7f4}.wrap{max-width:1208px;margin:auto;padding:0 36px}.hero{padding:86px 0 100px;position:relative;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}.eyebrow{font:12px/1.6 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--green);margin:0 0 25px;display:flex;align-items:center;gap:12px}.dark .eyebrow{color:var(--mint)}.eyebrow:before{content:'';width:30px;height:1px;background:currentColor}h1,h2,h3,p{margin:0 0 20px}h1{font-size:clamp(38px,4.5vw,66px);line-height:1.24;font-weight:650;letter-spacing:.005em}h1 em{font-style:normal;color:var(--mint)}h2{font-size:38px;line-height:1.4;font-weight:650}h3{font-size:23px;line-height:1.5}.hero .lede{color:#bcced0;max-width:600px;font-size:18px;line-height:1.9}.actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 20px}.dark .btn,.dark button{background:var(--mint);color:#102d2d}.dark .alt{background:transparent;color:#eef6f2}.micro{font-size:12px;color:var(--muted);line-height:1.8}.dark .micro{color:#9ab5bc}.scene{position:relative;min-height:390px;display:flex;flex-direction:column;justify-content:center;padding:30px 0}.scene-top{display:flex;justify-content:space-between;font:11px var(--mono);letter-spacing:.08em;color:#91b2bb;border-bottom:1px solid #2a4651;padding-bottom:14px}.signal{width:100%;height:auto;overflow:visible;margin:28px 0 10px}.signal text{font:11px var(--sans);fill:#b1c5cb}.signal .trace{fill:none;stroke:#35525e;stroke-width:1.5}.signal .active-trace{stroke:var(--mint);stroke-width:2;stroke-dasharray:8 180;animation:signal-pass 4s ease-out 1 forwards}.signal .node{fill:var(--night2);stroke:#5b7d87;stroke-width:1}.signal .break{fill:var(--amber);stroke:var(--amber)}.signal .success{fill:var(--mint)}.scene-note{border-left:2px solid var(--amber);padding:14px 18px;background:#102631;color:#e9e5d4;font-size:15px;max-width:370px;align-self:flex-end}.scene-note span{display:block;font:11px var(--mono);color:var(--amber);margin-bottom:6px}.scene-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.scene-tabs button{background:transparent;color:#b1c7cc;border:1px solid #35525e;min-height:38px;font-size:12px;padding:7px 12px}.scene-tabs button[aria-pressed=true]{color:var(--mint);border-color:var(--mint)}.chapter{padding:100px 0}.chapter-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:start}.chapter p{max-width:580px}.num{font:12px var(--mono);letter-spacing:.12em;color:var(--green);margin-bottom:25px}.rule{border-top:1px solid var(--line)}.tool-sheet{background:white;border:1px solid var(--line);padding:32px;box-shadow:0 20px 60px -45px #11392e}.sheet-head{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:20px;display:flex;justify-content:space-between;gap:20px;font-size:13px}.stamp{font:10px var(--mono);border:1px solid #a6bdb3;color:var(--green);padding:3px 8px;align-self:start}.sample-line{display:grid;grid-template-columns:26px 1fr auto;gap:12px;padding:16px 0;border-bottom:1px solid #e1e7e3;font-size:14px}.sample-line span:first-child{font:12px var(--mono);color:#69837a}.sample-line strong{font-size:11px;font-weight:500;color:#956022}.pill{display:inline-flex;font-size:11px;letter-spacing:.05em;border:1px solid #a8c2b8;color:var(--green);padding:3px 8px;border-radius:20px}.small-link{font-size:14px;font-weight:650}.story-footer{margin-top:35px;display:flex;align-items:center;gap:20px}.tone{background:#e9eee8}.quote-line{font-size:27px;line-height:1.6;border-left:2px solid var(--green);padding-left:24px;margin:0}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:48px}.principles article{border-top:1px solid #aebfb7;padding-top:22px}.principles h3{font-size:20px}.principles p{font-size:15px}.more-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}.experiment{padding:25px 0;border-top:1px solid var(--line)}.experiment .micro{margin:15px 0}.footer{padding:50px 0 140px;border-top:1px solid var(--line);font-size:13px}.footer-grid{display:flex;justify-content:space-between;gap:35px}.footer p{max-width:580px;color:var(--muted)}.footer a{margin-right:18px}.product-hero{padding:68px 0 58px}.product-hero h1{font-size:54px;max-width:850px}.product-hero p{max-width:680px}.tool-section{padding:55px 0 100px}.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start}.tool-input{padding:30px;background:white;border:1px solid var(--line)}.tool-input h2,.result-panel h2{font-size:23px}.tool-input label{display:block;margin:18px 0 7px;font-size:14px;font-weight:650}input,textarea{width:100%;border:1px solid #96aaa5;border-radius:4px;padding:12px;color:var(--ink);background:white;font-size:16px;line-height:1.6}textarea{min-height:250px;resize:vertical;font-family:var(--mono);font-size:13px}.check{display:flex!important;gap:12px;align-items:center;font-weight:500!important}.check input{width:20px;height:20px;flex-shrink:0}.result-panel{background:#eaf0e9;padding:30px;border-top:3px solid var(--green);min-height:260px;position:sticky;top:25px}.result-body{white-space:pre-wrap;overflow-wrap:anywhere;font:15px/1.9 var(--sans);margin:22px 0}.result-body:focus{outline-offset:8px}.empty-glyph{width:46px;height:54px;border:1px solid #8faaa0;display:grid;place-items:center;color:#688b7e;margin:25px 0}.tool-input .actions{margin-bottom:8px}.tool-input button{padding:11px 16px}.scenarios{display:flex;gap:8px;flex-wrap:wrap}.scenarios button{background:#eef3ed;color:var(--green);font-size:12px;padding:7px 10px;min-height:38px;border-color:#cedcd1}.meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:20px}.meta span{border-left:1px solid #82998e;padding-left:12px}.meta span:first-child{border:0;padding-left:0}.notes{max-width:780px}.notes details{border-bottom:1px solid var(--line);padding:22px 0}.notes summary{cursor:pointer;font-size:17px;font-weight:600}.notes details p{margin:15px 0 0;font-size:15px}.service{padding:40px;border:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:35px;align-items:center;margin:55px 0}.service h3{margin-bottom:8px}.service p{font-size:14px;max-width:650px;margin-bottom:10px}.price{font:32px var(--mono);white-space:nowrap}.price small{font:12px var(--sans);display:block;color:var(--muted)}.consent{position:fixed;bottom:18px;left:24px;right:24px;max-width:700px;margin:auto;background:#fff;border:1px solid #aebeb5;padding:16px 20px;z-index:20;box-shadow:0 15px 70px #081e2830;display:flex;gap:20px;align-items:center;font-size:12px}.consent p{margin:0;flex:1}.consent .actions{margin:0;gap:8px;flex-wrap:nowrap}.consent button{min-height:40px;padding:9px 12px;font-size:12px;white-space:nowrap}.consent[hidden]{display:none}.privacy-copy{max-width:780px;margin:auto;padding:65px 0 80px}.privacy-copy h1{font-size:42px}.privacy-copy h2{font-size:23px;margin-top:40px}.notice{border-left:2px solid #ba853a;padding:10px 18px;margin:20px 0;font-size:14px;background:#f3eee2}.hidden{display:none!important}.skip{position:fixed;left:20px;top:-100px;z-index:99;background:white;padding:12px}.skip:focus{top:15px}.statusline{font-size:12px;color:var(--green);min-height:24px}.dark .statusline{color:var(--mint)}@keyframes signal-pass{to{stroke-dashoffset:-360}}@media(max-width:900px){.hero-grid{gap:36px}.chapter-grid{gap:40px}.hero{padding-top:55px}h1{font-size:48px}.scene{min-height:300px}.principles{gap:24px}.chapter{padding:70px 0}}@media(max-width:680px){header{height:auto;min-height:92px;padding:22px;align-items:flex-start;gap:20px}.brand{font-size:12px;gap:10px}.brand-mark{width:21px;height:21px}nav{gap:10px 16px;flex-wrap:wrap;max-width:190px;justify-content:flex-end;font-size:12px}.wrap{padding:0 22px}.hero{padding:46px 0 55px}.hero-grid,.chapter-grid,.tool-layout{grid-template-columns:1fr;gap:35px}h1{font-size:40px}.product-hero h1{font-size:35px}h2{font-size:29px}.hero .lede{font-size:16px}.scene{min-height:270px;padding:10px 0 0}.scene-note{font-size:13px}.chapter{padding:60px 0}.tool-sheet,.tool-input,.result-panel{padding:23px}.principles{grid-template-columns:1fr;gap:18px;margin-top:30px}.more-grid{grid-template-columns:1fr;gap:5px}.footer-grid{flex-direction:column;gap:10px}.product-hero{padding:40px 0 34px}.tool-section{padding:32px 0 65px}.result-panel{position:static}.service{grid-template-columns:1fr;padding:25px;gap:15px}.price{font-size:28px}.consent{left:12px;right:12px;bottom:10px;padding:14px;flex-direction:column;gap:12px;align-items:stretch}.consent .actions{justify-content:flex-end}.consent button{flex:1}.footer{padding-bottom:180px}.actions .btn{flex:1}.scene-top{font-size:10px}.sample-line{gap:8px}.privacy-copy{padding-top:45px}.privacy-copy h1{font-size:32px}.quote-line{font-size:22px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}