:root{color-scheme:light;--bg:#F3F6FC;--surface:#FFFFFF;--accent:#2357D5;--ink:#18253F;--muted:#576782;--line:#DCE4F0;--green:#16755C;font-family:"Microsoft YaHei","Segoe UI",system-ui,sans-serif;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}h1,h2,p{margin:0}.shell{max-width:1120px;min-height:100svh;margin:auto;padding:32px 40px;display:flex;flex-direction:column}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:13px;font-size:27px;font-weight:650;line-height:1.1;letter-spacing:-.5px}.brand-mark{display:grid;place-items:center;width:42px;height:44px;border-radius:10px;background:var(--accent);color:white;font-size:32px;font-weight:600}.brand small{display:block;margin-top:7px;font-size:11px;color:var(--muted);font-weight:500;letter-spacing:2px}.stage{font-size:13px;color:var(--accent);background:#E7EEFF;border:1px solid #D3DFFF;border-radius:6px;padding:7px 12px}main{flex:1;display:flex;align-items:center;padding:56px 0}.notice{width:100%;max-width:840px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:50px 52px;box-shadow:0 8px 28px #18253F05}h1{font-size:36px;font-weight:650;line-height:1.4;letter-spacing:-1px}.intro{font-size:17px;color:var(--muted);line-height:1.9;margin-top:17px}.detail{border-left:3px solid var(--accent);padding:1px 0 1px 20px;margin-top:34px}h2{font-size:16px;font-weight:600;line-height:1.6}.detail p{font-size:14px;color:var(--muted);line-height:1.9;margin-top:7px;max-width:570px}.explanation{font-size:13px;color:var(--muted);line-height:1.9;margin-top:28px;max-width:580px}nav{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 20px;border-radius:7px;font-size:14px;line-height:1.5;border:1px solid transparent}.primary{background:var(--accent);color:white}.primary:hover{background:#1B46B0}.secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.secondary:hover{background:#F6F8FC}footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);line-height:1.8}
@media(max-width:600px){.shell{padding:24px 20px}.brand{font-size:24px}.brand-mark{width:37px;height:39px}main{padding:40px 0}.notice{padding:30px 24px}h1{font-size:27px;letter-spacing:-.5px}.intro{font-size:15px}.detail{padding-left:15px;margin-top:27px}.detail p{font-size:13px}.explanation{margin-top:23px}nav{flex-direction:column;margin-top:26px}.button{width:100%}footer{flex-direction:column}}

html{scroll-behavior:smooth;scroll-padding-top:24px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}.shell{max-width:1200px;padding:30px 44px}.top-nav{margin:0;align-items:center;gap:27px;font-size:13px;color:var(--muted)}.top-nav a:hover,footer a:hover{color:var(--accent)}main{display:block;padding:0}.hero{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:60px;align-items:center;padding:78px 0 64px}.eyebrow{font-size:12px;font-weight:600;color:var(--accent);margin-bottom:17px}.hero h1{font-size:42px;line-height:1.4;letter-spacing:-1.3px}.hero .intro{font-size:15px;line-height:1.95;margin-top:21px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.account-note{font-size:12px;color:var(--muted);line-height:1.8;max-width:500px;margin-top:15px}.connection-state{border-top:3px solid var(--accent);padding-top:21px}.connection-state h2{font-size:15px}.connection-state dl{margin:20px 0 14px}.connection-state dl>div{display:flex;justify-content:space-between;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding:14px 0;font-size:13px}.connection-state dt{display:flex;align-items:center;gap:7px;color:var(--muted)}.connection-state dd{margin:0;font-weight:600}.connection-state dl>div:last-child dd{color:var(--green)}.connection-state p{font-size:12px;color:var(--muted);line-height:1.85}.state-dot{width:6px;height:6px;border-radius:50%;background:var(--green)}.services{display:grid;grid-template-columns:270px minmax(0,1fr);gap:64px;padding:40px 0 50px;border-top:1px solid var(--line)}.section-intro h2{font-size:25px;line-height:1.5}.section-intro>p:last-child{font-size:13px;color:var(--muted);line-height:1.85;margin-top:14px}.service-list article{display:flex;gap:21px;padding:20px 0}.service-list article+article{border-top:1px solid var(--line)}.service-symbol{display:grid;place-items:center;flex:0 0 43px;height:43px;border:1px solid #D3DFFF;border-radius:9px;background:#E7EEFF;color:var(--accent);font-size:25px;font-family:Bahnschrift,"Segoe UI",sans-serif}.token-symbol{background:#EAF5F0;border-color:#D3E9DE;color:var(--green);font-size:20px}.service-list h3,.workspace-note h3{font-size:17px;margin:0;font-weight:600}.service-list p{font-size:13px;line-height:1.85;color:var(--muted);margin:8px 0 11px}.service-state{font-size:11px;color:var(--green)}.tools{padding:30px 0 58px;scroll-margin-top:20px}.tools-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:24px}.tools-heading h2{font-size:24px;line-height:1.5}.privacy-note{font-size:12px;color:var(--green);line-height:1.8;max-width:220px}.tool-tabs{display:flex;border-bottom:1px solid var(--line);gap:5px;flex-wrap:wrap}.tool-tabs button{border:0;border-bottom:3px solid transparent;background:transparent;color:var(--muted);padding:16px 20px 14px;min-height:48px;font-size:13px}.tool-tabs button[aria-selected=true]{border-bottom-color:var(--accent);color:var(--accent);font-weight:600}.tool-workspace{background:var(--surface);border:1px solid var(--line);border-top:0;padding:28px 30px 21px;border-radius:0 0 10px 10px;min-width:0}.workspace-note{margin-bottom:21px}.workspace-note p{font-size:12px;line-height:1.85;color:var(--muted);margin-top:7px}.editor-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}label{display:block;font-size:12px;font-weight:600;margin-bottom:9px}textarea{display:block;resize:vertical;width:100%;min-height:200px;background:#FBFCFE;border:1px solid var(--line);border-radius:6px;padding:13px 14px;color:var(--ink);font-family:Consolas,"Microsoft YaHei",monospace;font-size:13px;line-height:1.75;overflow-wrap:anywhere}textarea[readonly]{background:#F5F8FD}.tool-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px}.quiet-button{background:none;border:0;color:var(--muted);min-height:44px;padding:10px 13px;font-size:12px}.quiet-button:hover{color:var(--accent)}.tool-status{font-size:12px;line-height:1.7;min-height:21px;margin-top:13px;color:var(--green);overflow-wrap:anywhere}.tool-status.error{color:#A33333}.text-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin:22px 0 0}.text-metrics>div{padding-left:15px;border-left:2px solid var(--line)}.text-metrics dt{font-size:12px;color:var(--muted)}.text-metrics dd{font-family:Bahnschrift,"Segoe UI",sans-serif;font-size:27px;margin:9px 0 0}.password-settings{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:24px}.password-settings label{display:flex;align-items:center;gap:15px;margin:0}.password-settings input{width:88px;min-height:42px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;background:var(--surface);color:var(--ink)}.password-settings>span{font-size:12px;color:var(--muted);line-height:1.8}.password-output{min-height:93px;font-size:18px;letter-spacing:.5px}.noscript-note{background:#FFF6E8;border:1px solid #EDDBC0;border-radius:6px;font-size:13px;padding:15px;margin:0 0 18px;line-height:1.8}footer{padding:24px 0 8px;border-top:1px solid var(--line);align-items:center}footer nav{margin:0;font-size:11px;gap:20px}
@media(max-width:800px){.shell{padding:24px 26px}.hero{grid-template-columns:minmax(0,1fr) 240px;gap:30px;padding:58px 0 46px}.hero h1{font-size:32px}.services{grid-template-columns:210px minmax(0,1fr);gap:35px}.tools-heading{align-items:flex-start}.privacy-note{max-width:170px}}
@media(max-width:600px){html{scroll-padding-top:16px}.shell{padding:22px 18px}header{flex-wrap:wrap;gap:21px}.top-nav{flex-direction:row;gap:22px;font-size:12px;width:100%}.hero{display:block;padding:45px 0 35px}.hero h1{font-size:29px;line-height:1.5;letter-spacing:-.7px}.hero .intro{font-size:13px}.hero-actions{flex-direction:column;gap:10px;margin-top:23px}.connection-state{margin-top:33px;padding-top:20px}.connection-state dl>div{padding:11px 0}.services{display:block;padding:30px 0}.section-intro h2{font-size:22px}.section-intro h2 br{display:none}.section-intro>p:last-child{max-width:310px}.service-list{margin-top:14px}.service-list article{gap:15px;padding:21px 0}.service-symbol{flex-basis:37px;height:37px}.service-list h3{font-size:16px}.tools{padding:22px 0 32px}.tools-heading{display:block;margin-bottom:17px}.tools-heading h2{font-size:22px}.privacy-note{margin-top:10px;max-width:none}.tool-tabs{display:grid;grid-template-columns:1fr 1fr;gap:0}.tool-tabs button{padding:13px 7px;font-size:12px}.tool-workspace{padding:22px 16px 16px}.editor-grid{grid-template-columns:minmax(0,1fr);gap:18px}textarea{min-height:170px;font-size:12px}.workspace-note h3{font-size:16px}.tool-actions{gap:7px}.tool-actions .button{width:auto;padding:10px 12px;font-size:12px}.quiet-button{padding:10px;font-size:12px}.text-metrics{grid-template-columns:1fr 1fr;gap:21px}.password-settings{gap:13px}.password-output{min-height:94px;font-size:16px}footer{align-items:flex-start;gap:13px}footer nav{flex-direction:row;flex-wrap:wrap;gap:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.not-found{display:flex;align-items:center;padding:70px 0}