:root{--primary:#d93655;--primary-hover:#be2946;--primary-active:#a9233d;--tint:#fff1f3;--page:#f8fafc;--surface:#fff;--text:#172033;--body:#475569;--muted:#64748b;--line:#e2e8f0;--input-border:#7c8798;--success:#15803d;--error:#b91c1c;--radius:16px;--max:900px;--shadow:0 4px 16px rgba(15,23,42,.04)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--page);color:var(--body);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.6}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:wait}h1,h2,h3,p{margin:0}h1,h2,h3{color:var(--text)}h1{font-size:36px;line-height:1.4;letter-spacing:-1px;font-weight:700}h2{font-size:22px;line-height:1.4;letter-spacing:-.4px;font-weight:600}h3{font-size:18px;line-height:1.5;font-weight:600}a,button,input,textarea,summary{outline-offset:3px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--primary-hover)}[hidden]{display:none!important}.container{width:calc(100% - 64px);max-width:var(--max);margin-inline:auto}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.nav{height:64px;display:flex;align-items:center;gap:24px;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.4px;color:var(--text)}.brand-mark{display:grid;place-items:center;background:var(--primary);color:white;width:30px;height:30px;border-radius:9px;font-size:25px;font-weight:400;flex-shrink:0}.brand-short{display:none}.nav-links{display:flex;align-items:center;gap:24px;font-size:14px}.nav-links a,.footer-links a{min-height:44px;display:inline-flex;align-items:center}.nav-links a:hover,.footer-links a:hover{color:var(--primary-hover)}.button{min-height:48px;padding:11px 24px;border-radius:10px;border:1px solid transparent;display:inline-flex;justify-content:center;align-items:center;gap:12px;font-size:14px;font-weight:600;line-height:1.5;transition:background-color .15s,border-color .15s}.button-primary{background:var(--primary);color:#fff}.button-primary:hover{background:var(--primary-hover)}.button-primary:active{background:var(--primary-active)}.button-secondary{background:#fff;border-color:#94a3b8;color:var(--text);min-height:44px}.button-secondary:hover{background:#f1f5f9;border-color:var(--muted)}.button-small{min-height:44px;padding:10px 16px}.button:disabled{background:#e2e8f0;color:var(--body);border-color:#cbd5e1}.full-width{width:100%}.hero{padding-top:56px;padding-bottom:48px;text-align:center}.eyebrow{font-size:14px;display:inline-flex;align-items:center;gap:8px;margin-bottom:24px;color:var(--body)}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--primary)}.accent{color:var(--primary)}.hero-description{margin:24px auto;color:var(--body);max-width:640px;line-height:1.9}.hero-actions{display:flex;gap:12px;justify-content:center}.hero-note{font-size:14px;color:var(--muted);margin-top:16px}.hero-note span{padding:0 8px}.hero-preview{margin-top:40px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:1fr 32px 1.35fr;gap:16px;align-items:center}.tiny-label{display:block;font-size:14px;color:var(--muted);font-weight:400}.preview-topic p{color:var(--text);font-weight:600;margin:8px 0 16px;font-size:16px;max-width:250px}.pill,.neutral-pill{display:inline-flex;align-items:center;min-height:28px;padding:3px 10px;border-radius:6px;font-size:12px;font-weight:600;background:var(--tint);color:var(--primary-hover);white-space:nowrap}.neutral-pill{color:var(--body);background:#f1f5f9}.preview-arrow{font-size:24px;color:var(--muted)}.preview-titles{border-left:1px solid var(--line);padding-left:24px}.preview-titles p{margin-top:8px;font-size:14px;color:var(--text)}.preview-titles p span{color:var(--muted);font-size:12px;margin-right:10px;font-variant-numeric:tabular-nums}.preview-tag{float:right;background:#f1f5f9;border-radius:4px;padding:0 6px;font-size:12px;color:var(--body)}.section{padding-block:48px}.section-soft{background:#f1f5f9;border-block:1px solid var(--line)}.section-heading{text-align:center;margin-bottom:32px}.overline{font-size:12px;font-weight:600;letter-spacing:1.2px;color:var(--primary-hover);margin-bottom:12px}.section-heading>p:last-child:not(.overline){margin-top:12px;color:var(--muted);font-size:14px}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.feature-icon{width:40px;height:40px;display:grid;place-items:center;background:var(--tint);color:var(--primary-hover);border:1px solid #fbd6df;border-radius:12px;font-size:24px;margin-bottom:16px}.value-item h3{margin-bottom:8px}.value-item p,.steps p{font-size:14px;line-height:1.8}.steps{list-style:none;padding:0;margin:0;counter-reset:step}.steps li{position:relative}.steps li:not(:last-child):after{content:"";position:absolute;top:20px;left:60px;right:0;height:1px;background:#cbd5e1}.step-number{position:relative;z-index:1;width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:white;color:var(--primary-hover);border:1px solid #f4bbc7;font-weight:600;font-size:14px;margin-bottom:16px}.steps h3{margin-bottom:8px}.demo-notice{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px;padding:16px;border:1px solid #f4bbc7;border-radius:10px;background:var(--tint)}.demo-notice .pill{background:#fff;flex-shrink:0}.demo-notice p{font-size:14px;color:var(--body)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.card-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.text-button{border:0;background:none;color:var(--primary-hover);font-size:14px;min-height:44px;padding:8px 0;font-weight:600;flex-shrink:0}.text-button:hover{text-decoration:underline}.field{margin:0 0 24px}.field>label,.field legend{display:block;color:var(--text);font-size:14px;font-weight:600;margin-bottom:8px}.field-meta{font-weight:400;color:var(--muted);margin-left:8px}.field textarea{width:100%;display:block;border:1px solid var(--input-border);border-radius:10px;background:#fff;padding:12px 16px;color:var(--text);font-size:16px;line-height:1.6;resize:vertical;min-height:96px;transition:border-color .15s}.field #description{min-height:128px}.field textarea::placeholder{color:var(--muted);opacity:1}.field textarea:hover{border-color:var(--body)}.field textarea:focus{border-color:var(--primary-hover)}.field textarea[aria-invalid="true"]{border-color:var(--error)}.field-bottom{display:flex;justify-content:space-between;gap:12px;margin-top:8px;font-size:14px;color:var(--muted)}.field-bottom>span:last-child{white-space:nowrap;font-variant-numeric:tabular-nums}.field-error,.request-error{color:var(--error);font-size:14px;margin-top:8px}.style-field{padding:0;border:0;min-width:0}.style-options{display:flex;flex-wrap:wrap;gap:8px}.style-options label{position:relative;cursor:pointer}.style-options input{position:absolute;width:1px;height:1px;opacity:0}.style-options span{display:flex;align-items:center;justify-content:center;min-height:44px;border:1px solid #94a3b8;border-radius:8px;padding:9px 16px;font-size:14px;color:var(--body)}.style-options input:checked+span{background:var(--tint);color:var(--primary-hover);border-color:var(--primary);font-weight:600}.style-options input:focus-visible+span{outline:2px solid var(--primary-hover);outline-offset:3px}.style-options span:hover{border-color:var(--primary-hover)}.form-note{font-size:14px;text-align:center;color:var(--muted);margin-top:12px}.results-card{margin-top:24px}.result-label{color:var(--muted);font-size:14px}.empty-state{padding:16px 0 24px;text-align:center}.empty-symbol{color:var(--primary-hover);font-size:32px;background:var(--tint);display:grid;place-items:center;width:56px;height:56px;margin:0 auto 16px;border-radius:16px}.empty-state p{font-size:16px;color:var(--body)}.empty-state>span:last-child{font-size:14px;color:var(--muted);display:block;margin-top:8px}.title-list{margin:0 0 24px;padding:0;list-style:none}.title-row{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line)}.title-number{color:var(--muted);font-size:14px;line-height:44px;font-variant-numeric:tabular-nums;flex-shrink:0}.title-text{color:var(--text);flex:1;min-width:0;overflow-wrap:anywhere;padding-top:9px}.copy-button{min-height:44px;padding:8px 12px;border:1px solid #94a3b8;background:#fff;color:var(--body);font-size:14px;border-radius:8px;min-width:68px;flex-shrink:0}.copy-button:hover{background:#f1f5f9}.copy-button.copied{color:var(--success);border-color:var(--success);background:#f0fdf4}.request-error{margin-bottom:16px}.feature-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center}.section-description{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px}.inline-link{display:inline-flex;align-items:center;min-height:44px;color:var(--primary-hover);font-weight:600;font-size:14px;margin-top:16px;gap:16px}.inline-link:hover{text-decoration:underline}.feature-list article{display:flex;gap:16px;padding:24px 0;border-bottom:1px solid #cbd5e1}.feature-list article:first-child{padding-top:0}.feature-list article:last-child{border:0;padding-bottom:0}.feature-list article>span{color:var(--primary-hover);font-size:14px;padding-top:4px;font-variant-numeric:tabular-nums}.feature-list h3{font-size:16px}.feature-list p{font-size:14px;margin-top:8px}.example-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:16px}.example-heading p{font-size:14px;color:var(--text)}.example-heading .tiny-label{font-size:12px;margin-bottom:4px}.example-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.example-grid li{display:flex;align-items:flex-start;gap:12px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:16px}.example-grid li>span{font-size:12px;color:var(--primary-hover);padding-top:3px;font-variant-numeric:tabular-nums}.example-grid p{font-size:14px;color:var(--text);overflow-wrap:anywhere}.section-action{text-align:center;margin-top:24px}.plans-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.plan-card{display:flex;flex-direction:column}.plan-card:first-child{border-color:var(--primary)}.plan-card .card-heading{margin-bottom:16px}.plan-price{color:var(--text);font-size:32px;line-height:1.4;font-weight:700;margin-bottom:12px}.plan-price span{font-size:14px;font-weight:400;color:var(--muted)}.plan-card>p:not(.plan-price){font-size:14px}.check-list{list-style:none;margin:24px 0;padding:0;font-size:14px;display:grid;gap:12px}.check-list li:before{content:"✓";color:var(--primary-hover);margin-right:10px}.plan-card>.button{margin-top:auto}.plan-footnote{margin-top:auto!important;background:#f1f5f9;border-radius:10px;padding:13px 16px;color:var(--muted);text-align:center}.future-plan{box-shadow:none}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 8px}summary{padding:20px 36px 20px 0;position:relative;cursor:pointer;list-style:none;color:var(--text);font-size:16px;font-weight:600}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:4px;font-size:22px;top:14px;font-weight:400;color:var(--muted)}details[open] summary:after{content:"−"}details p{font-size:14px;line-height:1.8;padding:0 32px 20px 0;max-width:760px}.bottom-cta{position:relative;overflow:hidden;background:var(--tint);border:1px solid #f4bbc7;border-radius:20px;text-align:center;padding:48px 24px;margin-bottom:48px}.bottom-cta h2{font-size:28px;line-height:1.5}.bottom-cta>p:not(.overline){font-size:14px;margin-top:16px}.bottom-cta .button{margin-top:24px}.cta-note{display:block;font-size:14px;color:var(--muted);margin-top:12px}.cta-symbol{position:absolute;right:26px;top:10px;color:#f7c7d0;font-size:100px;line-height:1;pointer-events:none}.site-footer{background:#fff;border-top:1px solid var(--line);padding:32px 0 24px}.footer-top,.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:24px}.footer-top .brand{font-size:16px}.footer-links{display:flex;gap:24px;font-size:14px}.footer-bottom{border-top:1px solid var(--line);margin-top:24px;padding-top:20px;font-size:12px;color:var(--muted)}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100% - 32px);width:max-content;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px #17203320;background:#fff;color:var(--text);padding:12px 20px;z-index:10;font-size:14px}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus{position:fixed;top:8px;left:8px;z-index:100;background:white;color:var(--primary-hover);padding:12px;border:2px solid var(--primary-hover)}
@media(min-width:768px) and (max-width:1023px){.container{width:calc(100% - 48px)}h1{font-size:32px}.card{padding:24px}.nav-links{gap:16px}.nav{gap:16px}.desktop-link{display:none}}
@media(max-width:767px){.container{width:calc(100% - 32px)}.nav{height:56px;gap:12px}.brand{font-size:16px;gap:8px}.brand-full{display:none}.brand-short{display:inline}.brand-mark{width:28px;height:28px}.nav-links{display:none}.nav-cta{padding:9px 12px;gap:6px}.hero{padding-top:32px;padding-bottom:32px}h1{font-size:28px;line-height:1.5;letter-spacing:-.8px}h2{font-size:20px}.eyebrow{font-size:12px;margin-bottom:16px}.hero-description{font-size:15px;margin:16px auto 24px}.desktop-break{display:none}.hero-actions{flex-wrap:wrap;gap:12px}.hero-actions .button{padding-inline:16px}.hero-note{font-size:12px}.hero-note span{padding:0 4px}.hero-preview{margin-top:32px;padding:20px;grid-template-columns:1fr;gap:16px}.preview-arrow{display:none}.preview-topic p{max-width:none;margin-bottom:8px}.preview-titles{border-left:0;border-top:1px solid var(--line);padding:16px 0 0}.section{padding-block:32px}.section-heading{margin-bottom:24px}.three-grid{grid-template-columns:1fr;gap:24px}.value-item{display:grid;grid-template-columns:40px 1fr;column-gap:16px}.feature-icon{grid-row:span 2;margin:0}.value-item h3{margin-bottom:4px}.steps li{padding-left:56px;min-height:72px}.step-number{position:absolute;left:0;top:0}.steps li:not(:last-child):after{top:48px;left:20px;height:calc(100% - 24px);width:1px;right:auto}.steps h3{margin-bottom:4px}.demo-notice{gap:8px;flex-direction:column}.card{padding:20px}.card-heading{gap:8px;margin-bottom:20px;flex-wrap:wrap}.card-heading h3{font-size:18px}.field-bottom{font-size:12px}.style-options span{padding-inline:12px}.results-card{margin-top:24px}.result-label{font-size:12px}.feature-layout{grid-template-columns:1fr;gap:24px}.section-description{max-width:none}.feature-list article{padding-block:20px}.example-heading{padding:16px;align-items:flex-start;flex-direction:column;gap:12px}.example-grid{grid-template-columns:1fr;gap:8px}.plans-grid{grid-template-columns:1fr;gap:16px}.plan-card{padding:24px}.bottom-cta{padding:32px 20px;margin-bottom:32px}.bottom-cta h2{font-size:24px}.cta-symbol{font-size:64px;right:12px;top:12px}.bottom-cta .overline{position:relative;max-width:220px;margin-inline:auto}.footer-top,.footer-bottom{align-items:flex-start;flex-direction:column;gap:12px}.footer-links{gap:20px}.footer-bottom{margin-top:16px;padding-top:16px;gap:8px}.site-footer{padding-top:24px}.form-note{font-size:12px}.empty-state>span:last-child{font-size:12px}.empty-state p{font-size:14px}}
@media(max-width:389px){.title-row{display:grid;grid-template-columns:24px minmax(0,1fr);gap:4px 8px}.copy-button{grid-column:2;justify-self:end}.title-number{line-height:1.6;padding-top:9px}.hero-actions{flex-direction:column}.hero-note{max-width:250px;margin-inline:auto}.brand{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
.form-actions{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center}.result-actions{display:grid;gap:12px}.result-actions .text-button{justify-self:center}.copy-all-button{white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:8px}
@media(max-width:767px){.form-actions{grid-template-columns:1fr}.form-actions .button{width:100%}.card-heading>div{min-width:0}.copy-all-button{width:100%}}
/* Keep instructions and form feedback readable at every viewport size. */
.form-note,.field-bottom,.hero-note,.empty-state>span:last-child{font-size:14px}
@media(max-width:767px){.nav{min-width:0}.brand{min-width:0}.brand-full,.brand-short{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-actions{min-width:0;flex-shrink:1}.nav-actions .button{padding-inline:10px;white-space:nowrap}}