:root{--bg:#f7f9f6;--ink:#1d3429;--muted:#617066;--green:#285e43;--lime:#d8efb8;--border:#e1e7df;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button,a,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a:hover{color:var(--green)}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #71a04f;outline-offset:4px}input:focus,select:focus{outline:2px solid #6b966c;outline-offset:2px}.wrap{width:min(1100px,calc(100% - 64px));margin-inline:auto}.header{height:100px;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;font-weight:750;font-size:23px;letter-spacing:-.9px}.brand-light{font-weight:450}.brand-icon{display:grid;place-items:center;margin-right:9px;background:var(--green);color:var(--lime);border-radius:10px;width:32px;height:35px;font-size:24px;font-weight:750}.header nav{display:flex;align-items:center;gap:33px;font-size:13px;font-weight:550}.language{border:1px solid var(--border);padding:10px 14px;border-radius:8px}.hero{text-align:center;padding:52px 0 38px}.eyebrow{font-size:11px;letter-spacing:1.7px;font-weight:650;display:flex;gap:9px;align-items:center}.hero .eyebrow{justify-content:center}.status-dot{display:inline-block;width:6px;height:6px;flex-shrink:0;border-radius:50%;background:#5c8a4c}.hero h1{font-size:clamp(42px,5.2vw,64px);letter-spacing:-2.5px;line-height:1.18;font-weight:650;margin:25px 0 21px}.hero h1 span{color:#5a8151}.intro{font-size:15px;color:var(--muted);line-height:1.9;margin:0}.generator{max-width:920px;border:1px solid #dce4d9;background:#fff;border-radius:18px;box-shadow:0 12px 45px #29482b07;overflow:hidden}.tool-top{display:flex;align-items:center;justify-content:space-between;padding:23px 29px;border-bottom:1px solid var(--border)}.tool-top h2{font-size:15px;margin:0;font-weight:650}.local-badge{display:flex;align-items:center;gap:7px;color:var(--green);font-size:11px;background:#f1f6ed;padding:6px 10px;border-radius:20px}.tool-grid{display:grid;grid-template-columns:1.13fr 1fr;gap:29px;padding:28px}form>label{font-size:13px;font-weight:600;display:block;margin:3px 0 11px}.input-wrap{display:flex;align-items:center;border:1px solid #d9e1d6;border-radius:9px;overflow:hidden}.input-wrap:focus-within{outline:2px solid #7ea778;outline-offset:2px}.input-wrap input{width:100%;min-width:0;border:0;background:transparent;padding:15px 12px;font-size:12px;outline:none}.input-wrap button{background:none;border:0;font-size:11px;color:var(--muted);padding:12px;white-space:nowrap}::placeholder{color:#889187}.hint{font-size:10px;color:var(--muted);line-height:1.6;margin:9px 0 19px}.advanced summary{font-size:12px;color:var(--muted);cursor:pointer}.settings{display:grid;grid-template-columns:1.25fr .75fr 1.2fr;gap:10px;margin-top:14px}.settings label{font-size:10px;line-height:1.6}.settings input,.settings select{width:100%;border:1px solid var(--border);padding:8px 5px;margin-top:5px;border-radius:5px;background:#fff;color:var(--ink);font-size:12px}.form-actions{display:flex;gap:10px;margin-top:24px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:18px;border:0;border-radius:8px;background:var(--green);color:white;font-size:13px;padding:14px 17px;font-weight:550}.primary:hover{background:#1f4934;color:white}.form-actions .primary{flex:1}.primary span{font-size:18px}.secondary{background:#fff;border:1px solid var(--border);border-radius:8px;padding:12px 18px;font-size:12px;color:var(--muted)}.secondary:hover{background:#f4f7f1}.demo{border:0;background:none;color:var(--muted);font-size:11px;margin-top:17px;padding:0}.demo:hover{color:var(--green)}.demo span{padding-left:5px}.error{font-size:12px;color:#a33325;line-height:1.7;margin:12px 0 0}.error:empty{display:none}.result{border:1px solid #dce6d6;background:#f4f8ef;border-radius:11px;padding:20px 24px 15px;display:flex;flex-direction:column;justify-content:center;min-height:250px}.result-label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;color:#66805b}.result-label>span:first-child{font-weight:650;letter-spacing:1px}#result-status{font-size:9px}#code{display:block;font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;text-align:center;font-size:clamp(36px,4vw,48px);letter-spacing:3px;line-height:1;margin:28px 0 24px;white-space:nowrap;font-weight:550}#code.eight{font-size:35px;letter-spacing:1px}.countdown{display:flex;align-items:center;gap:12px}progress{appearance:none;width:100%;height:4px;border:0;border-radius:4px;overflow:hidden;background:#dce7d4}progress::-webkit-progress-bar{background:#dce7d4}progress::-webkit-progress-value{background:#729761;transition:width .2s}progress::-moz-progress-bar{background:#729761}#remaining{font-variant-numeric:tabular-nums;font-size:11px;color:#718465;white-space:nowrap;min-width:30px}#copy{margin-top:17px;background:white;border:1px solid #d6e2cc;border-radius:7px;padding:11px 15px;color:var(--green);font-size:12px;display:flex;align-items:center;justify-content:center;gap:9px}#copy:disabled{opacity:.45}#copy:not(:disabled):hover{background:#e8f2de}#timer-caption{font-size:9px;color:#78906e;text-align:center;margin:10px 0 0}.privacy-strip{display:flex;align-items:center;justify-content:center;gap:8px;background:#fbfcf9;border-top:1px solid var(--border);font-size:11px;color:var(--muted);padding:14px 15px}.privacy-strip>span{font-size:17px}.security-note{text-align:center;font-size:10px;color:#87917e;line-height:1.8;margin-top:12px}.compat{padding:36px 0 48px;text-align:center}.compat>p{font-size:10px;letter-spacing:1.4px;color:#87917e;margin-bottom:24px}.compat>div{display:flex;flex-wrap:wrap;gap:16px 30px;align-items:center;justify-content:center;color:#657060;font-size:14px;font-weight:600}.compat small{display:block;font-size:9px;color:#899281;margin-top:19px}.steps{padding:57px 0 60px;border-top:1px solid var(--border)}.section-heading>.eyebrow{color:#7d8e70;font-size:10px}.section-heading h2{font-size:30px;font-weight:600;letter-spacing:-.9px;margin:13px 0 0}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:55px;margin-top:37px}.step-number{display:inline-flex;align-items:center;justify-content:center;width:35px;height:35px;background:#e9efdf;border-radius:50%;color:#648153;font-size:11px}.steps 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a{font-size:11px}footer{display:flex;align-items:center;gap:25px;border-top:1px solid var(--border);padding:30px 0 36px;color:#7c8775}footer .brand{color:var(--ink);font-size:17px}footer>span{font-size:10px}footer>div{margin-left:auto;display:flex;gap:20px;font-size:10px}.sr-only,.skip{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0)}.skip:focus{clip:auto;width:auto;height:auto;padding:15px;background:white;z-index:5}.article{max-width:780px;padding-top:45px;padding-bottom:80px}.article .back{font-size:13px;display:inline-block;margin-bottom:55px}.article h1{font-size:clamp(32px,4vw,48px);font-weight:600;line-height:1.3;letter-spacing:-1.5px}.article-lead{font-size:17px;line-height:1.9;color:var(--muted);margin-bottom:44px}.article section{margin:30px 0}.article h2{font-size:20px;font-weight:600}.article section p{font-size:15px;line-height:2;color:var(--muted)}.reference{font-size:13px;margin:40px 0}.reference a{text-decoration:underline}.article-cta{margin-top:20px}@media(max-width:760px){.wrap{width:calc(100% - 36px)}.header{height:78px}.header nav{gap:12px;font-size:11px}.header nav>a:first-child{display:none}.brand{font-size:21px}.language{padding:8px 10px}.hero{padding:32px 0}.hero h1{letter-spacing:-1.8px}.intro{font-size:13px}.eyebrow{font-size:9px;letter-spacing:1px}.tool-top{padding:19px}.tool-grid{grid-template-columns:1fr;gap:22px;padding:20px}.result{padding:22px;min-height:260px}#code{font-size:48px}#code.eight{font-size:39px}.hint{font-size:10px}.privacy-strip{font-size:10px;text-align:center}.compat{padding:30px 0}.compat>div{font-size:12px;gap:18px}.compat small{line-height:1.8}.steps{padding:38px 0}.steps-grid{gap:26px;grid-template-columns:1fr;margin-top:30px}.steps-grid article{position:relative;padding-left:52px}.step-number{position:absolute;left:0;top:0}.steps h3{margin-top:0}.section-heading h2{font-size:27px}.faq{grid-template-columns:1fr;gap:30px;padding:38px 0}.section-heading>a{margin-top:17px}.faq-list summary{font-size:12px}.closing{font-size:11px;gap:8px}.closing a{white-space:nowrap}footer{flex-wrap:wrap;gap:15px}footer>div{margin-left:0;flex-basis:100%;gap:22px}.article{padding-top:24px}.article .back{margin-bottom:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}progress::-webkit-progress-value{transition:none}}
/* Compact, tool-first homepage. */
.header{height:68px}.hero{padding:18px 0 20px}.hero h1{font-size:28px;line-height:1.45;letter-spacing:-.7px;margin:0 0 7px;font-weight:650}.intro{font-size:13px;line-height:1.6}.generator{max-width:1040px}.tool-grid{grid-template-columns:1.5fr 1fr;padding:28px;gap:28px;align-items:center}form>label{font-size:16px;margin:0 0 14px}.input-wrap{border-radius:12px}.input-wrap input{font-size:18px;padding:25px 18px;min-height:78px}.input-wrap button{padding:24px 16px;font-size:12px}.form-actions{margin-top:18px}.form-actions .primary,.secondary{min-height:48px}.result{min-height:222px;padding:18px 24px}#code{margin:24px 0 20px}.privacy-strip{padding:10px;font-size:11px}.site-actions{display:flex;gap:24px;justify-content:center;align-items:center;margin-top:14px}.site-actions button{border:0;background:none;padding:8px 3px;color:var(--muted);font-size:12px}.site-actions button:hover{color:var(--green)}.site-actions button span{font-size:16px;margin-right:3px}.link-feedback{font-size:12px;text-align:center;color:var(--green);margin-top:8px;margin-bottom:0;line-height:1.6}.link-feedback:empty{display:none}.compat{padding:26px 0 30px}.compat>p{margin:0 0 17px}.compat small{margin-top:14px}.steps{padding:32px 0}.section-heading h2{font-size:24px;margin-top:8px}.steps-grid{margin-top:24px}.faq{padding-top:34px;padding-bottom:34px;gap:40px}.closing{padding:18px 0}dialog{border:1px solid var(--border);border-radius:16px;padding:26px;width:min(420px,calc(100% - 36px));color:var(--ink);background:#fff;box-shadow:0 18px 70px #1d342930}dialog::backdrop{background:#15251d66}dialog h2{font-size:20px;margin:0 0 16px}dialog p{font-size:14px;line-height:1.8}.bookmark-note{color:var(--muted);font-size:12px!important}dialog .primary{margin-top:8px;justify-content:center;min-width:100px}@media(max-width:760px){.header{height:62px}.hero{padding:10px 0 18px}.hero h1{font-size:21px;letter-spacing:-.4px;line-height:1.5;max-width:440px;margin-inline:auto}.intro{font-size:12px;margin-top:7px}.tool-grid{grid-template-columns:1fr;padding:20px;gap:20px}.input-wrap input{font-size:16px;min-height:76px;padding:24px 14px}.input-wrap button{padding:24px 12px}form>label{font-size:15px;margin-bottom:12px}.result{min-height:214px;padding:18px 22px}#code{margin:22px 0 18px}.site-actions{gap:18px;margin-top:8px}.site-actions button{font-size:11px}.compat{padding:24px 0}.steps{padding:28px 0}.faq{padding:28px 0}}
.hero h1{text-wrap:balance}
.secret-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.secret-heading label{font-size:16px;font-weight:600}.secret-heading button{border:1px solid #cdddc7;border-radius:7px;background:#f1f6eb;color:var(--green);padding:8px 12px;font-size:12px;font-weight:600}.secret-heading button:hover{background:#e5efda}.secret-heading button:disabled{opacity:.5}.header nav{gap:12px}.nav-action{display:inline-flex;align-items:center;gap:7px;border:1px solid #cdddc7;border-radius:8px;background:#fff;color:var(--green);padding:11px 14px;font-size:13px;font-weight:600;white-space:nowrap}.nav-action>span{font-size:17px}.nav-action:hover{background:#edf4e5}.nav-action-primary{background:var(--green);color:#fff;border-color:var(--green)}.nav-action-primary:hover{background:#1f4934}.link-feedback{margin-top:0;margin-bottom:8px}@media(max-width:760px){.header{height:auto;min-height:96px;flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px}.header nav{display:flex;flex-wrap:wrap;gap:8px;width:100%}.header nav>a:first-child{display:inline-flex}.nav-action{padding:10px 11px;font-size:11px}.header .language{font-size:10px;margin-left:auto;padding:10px 8px}.secret-heading label{font-size:15px}.hero{padding-top:5px}.secret-heading{margin-bottom:12px}}
/* Prominent copy confirmation, without shifting page content. */
.link-feedback{position:fixed;z-index:1000;top:82px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:14px;width:max-content;max-width:calc(100% - 32px);margin:0;padding:18px 24px;border:1px solid #85ae78;border-radius:14px;background:#edf8e7;color:#204e32;box-shadow:0 12px 36px #183b2a33;text-align:left;line-height:1.5;animation:feedback-in .18s ease-out}.link-feedback:empty{display:none}.feedback-icon{display:grid;place-items:center;flex-shrink:0;width:40px;height:40px;background:#285e43;border-radius:50%;color:#fff;font-size:25px;font-weight:700}.feedback-content{display:flex;flex-direction:column;gap:3px}.feedback-content strong{font-size:20px;line-height:1.4}.feedback-content>span{font-size:14px;color:#41644a}.link-feedback[data-state="error"]{background:#fff3ee;border-color:#d49982;color:#853d27}.link-feedback[data-state="error"] .feedback-icon{background:#a14d32}.link-feedback[data-state="error"] .feedback-content>span{color:#853d27}@keyframes feedback-in{from{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%,0)}}@media(max-width:760px){.link-feedback{top:112px;padding:15px 18px;gap:12px}.feedback-content strong{font-size:18px}.feedback-content>span{font-size:13px}.feedback-icon{width:36px;height:36px;font-size:23px}}@media(prefers-reduced-motion:reduce){.link-feedback{animation:none}}
.more-tools{display:inline-flex;align-items:center;gap:6px;padding:10px 8px;color:var(--green);font-size:13px;font-weight:600;white-space:nowrap}.more-tools:hover{background:#eaf2e3;border-radius:8px}@media(max-width:760px){.header{position:relative}.header .language{position:absolute;right:0;top:16px}.more-tools{font-size:11px;padding:10px 5px}}