:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background-base:#f7f9fc;--background-surface:#fff;--background-surface-secondary:#f1f5f9;--background-tint:#dbeafe;--background-dark:#0f172a;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#94a3b8;--text-inverse:#fff;--border-default:#e2e8f0;--brand-primary:#2563eb;--brand-hover:#1d4ed8;--brand-soft:#dbebff;--success:#16a34a;--warning:#d97706;--danger:#dc2626;--info:#0891b2;--shadow-surface:0 8px 24px #0f172a0f;--shadow-floating:0 20px 40px #0f172a14;--shadow-overlay:0 32px 64px #0f172a2e;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:24px;--radius-2xl:28px;--container-width:min(1280px, calc(100% - 40px));--workspace-width:min(1440px, calc(100% - 40px))}*{box-sizing:border-box}html{scroll-behavior:smooth;font-family:Manrope,PingFang SC,Noto Sans SC,Microsoft YaHei,sans-serif}body{background:radial-gradient(circle at top, #2563eb1f, transparent 30%), linear-gradient(180deg, #fbfdff 0%, var(--background-base) 100%);color:var(--text-primary);margin:0}body,button,input,textarea{font:inherit}a{color:inherit;text-decoration:none}button,input{border:0}button{cursor:pointer}p{color:var(--text-secondary);margin:0;line-height:1.65}h1,h2,h3,h4{color:var(--text-primary);margin:0;line-height:1.1}ul,dl{margin:0;padding:0}.container{width:var(--container-width);margin:0 auto}.section-heading,.stacked-page,.workspace-page{gap:24px;display:grid}.section-heading{max-width:760px}.section-heading h2,.page-intro h2,.auth-card h1{letter-spacing:-.04em;font-size:clamp(2rem,3vw,3.25rem)}.section-eyebrow{color:var(--brand-primary);letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px;font-size:12px;font-weight:700}.surface-card{border-radius:var(--radius-xl);box-shadow:var(--shadow-surface);background:#ffffffeb;border:1px solid #e2e8f0f2;padding:28px}.button-link,.primary-button,.secondary-button,.ghost-button{border-radius:var(--radius-md);justify-content:center;align-items:center;gap:8px;min-height:48px;padding:0 18px;font-weight:700;transition:transform .18s,box-shadow .18s,background-color .18s;display:inline-flex}.button-link:hover,.primary-button:hover,.secondary-button:hover,.ghost-button:hover{transform:translateY(-1px)}.button-link-primary,.primary-button{background:var(--brand-primary);color:var(--text-inverse);box-shadow:var(--shadow-surface)}.button-link-primary:hover,.primary-button:hover{background:var(--brand-hover)}.button-link-secondary,.secondary-button{background:var(--background-surface-secondary);color:var(--text-primary)}.button-link-ghost,.ghost-button{color:var(--text-secondary);background:0 0}.wide-button{width:100%}.center-button{justify-self:stretch}.brand-mark{align-items:center;gap:12px;font-weight:800;display:inline-flex}.brand-glyph{background:linear-gradient(135deg, var(--brand-primary), #60a5fa);width:40px;height:40px;color:var(--text-inverse);box-shadow:var(--shadow-surface);letter-spacing:.08em;border-radius:14px;justify-content:center;align-items:center;font-size:14px;display:inline-flex}.marketing-header{z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f7f9fcd1;border-bottom:1px solid #e2e8f0b8;position:sticky;top:0}.marketing-header-inner,.marketing-actions,.marketing-nav,.hero-actions,.hero-micro-stats,.workspace-preview-header,.tool-runtime-header,.result-meta,.result-actions,.pricing-card-top,.pricing-grid,.tools-grid,.two-column-grid,.metric-grid,.status-grid,.goal-selection-grid,.auth-links-row,.auth-header-row,.final-cta-grid,.marketing-footer-grid,.use-case-top,.detail-list,.inline-banner,.chat-panel-header,.message-action-bar,.composer-meta,.composer-input-row,.workspace-nav-brand,.workspace-nav-links,.app-topbar-tools{gap:16px;display:flex}.marketing-header-inner{justify-content:space-between;align-items:center;padding:18px 0}.marketing-nav,.marketing-actions{align-items:center}.marketing-nav-link,.text-link{color:var(--text-secondary);font-weight:600}.marketing-nav-link.is-active,.workspace-nav-link.is-active,.workspace-mobile-tab.is-active{color:var(--text-primary)}.marketing-shell main,.marketing-section,.marketing-hero,.auth-main,.workspace-page,.app-content{padding-bottom:40px}.marketing-hero{padding-top:72px}.hero-grid,.why-grid,.chat-stage,.tool-runtime-grid,.auth-card,.final-cta-grid{gap:24px;display:grid}.hero-grid,.why-grid,.final-cta-grid{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr)}.hero-grid{align-items:center}.hero-copy-block,.workspace-preview-card,.cta-panel,.auth-card-main,.auth-side-panel,.page-intro,.conversation-rail,.chat-panel,.tool-runtime,.tool-runtime-column,.faq-page-list,.faq-preview-list,.capability-grid,.use-case-grid,.principle-stack{gap:20px;display:grid}.hero-copy-block h1{letter-spacing:-.06em;max-width:15ch;font-size:clamp(3rem,5vw,5.2rem)}.hero-description{max-width:620px;font-size:18px}.hero-actions,.hero-micro-stats,.workspace-preview-header,.pricing-card-top,.use-case-top,.inline-banner,.tool-runtime-header,.chat-panel-header,.message-action-bar,.result-meta,.result-actions,.detail-list,.auth-links-row,.auth-header-row,.app-topbar-tools{flex-wrap:wrap;align-items:center}.hero-micro-stats span,.member-chip,.icon-chip,.tool-category,.tool-credits,.credit-balance,.workspace-mobile-tab,.metric-label{border:1px solid var(--border-default);min-height:32px;color:var(--text-secondary);background:#ffffffe6;border-radius:999px;justify-content:center;align-items:center;padding:0 12px;font-size:13px;font-weight:700;display:inline-flex}.credit-normal{color:var(--brand-primary)}.credit-low{color:var(--warning)}.credit-empty{color:var(--danger)}.workspace-preview-card{background:linear-gradient(180deg, #fffffff5, #f1f5f9f5), var(--background-surface);padding:32px}.system-status{color:var(--success);align-items:center;gap:8px;font-size:13px;font-weight:700;display:inline-flex}.system-status:before{content:"";background:currentColor;border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 5px #16a34a1a}.connected-preview-grid{gap:10px;display:grid}.connected-preview-item{border:1px solid var(--border-default);border-radius:var(--radius-lg);background:#ffffffdb;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:16px;display:grid}.connected-preview-item>span:last-child{color:var(--success);text-transform:uppercase;font-size:12px;font-weight:800}.connected-preview-item p{margin-top:3px;font-size:13px}.surface-signal{border-radius:999px;width:12px;height:36px}.surface-signal.cloud{background:linear-gradient(#2563eb,#93c5fd)}.surface-signal.retail{background:linear-gradient(#7c3aed,#c4b5fd)}.surface-signal.device{background:linear-gradient(#0891b2,#67e8f9)}.preview-insight{border-radius:var(--radius-lg);background:var(--background-dark);color:var(--text-inverse);justify-content:space-between;align-items:flex-end;gap:20px;padding:20px;display:flex}.preview-insight .section-eyebrow{color:#93c5fd}.preview-insight strong{max-width:28ch;line-height:1.45;display:block}.insight-action{color:#bfdbfe;flex:none;font-size:13px;font-weight:700}.preview-message,.message-bubble,.runtime-status-card,.runtime-result-card,.search-shell,.file-uploader,.tool-card,.goal-card,.conversation-item{border:1px solid var(--border-default);border-radius:var(--radius-lg);background:#ffffffe0}.preview-message{padding:18px}.preview-message.assistant{margin-right:48px}.preview-message.user{background:var(--background-tint);margin-left:48px}.preview-tool-row,.tool-card-top,.tool-card-footer,.status-row{justify-content:space-between;align-items:center;gap:16px;display:flex}.marketing-section{padding:24px 0 72px;scroll-margin-top:112px}.marketing-section-muted{background:linear-gradient(#f1f5f92e,#fff0)}.section-heading-row{justify-content:space-between;align-items:flex-end;gap:32px;display:flex}.section-side-note{max-width:220px;color:var(--brand-primary);text-align:right;padding-bottom:8px;font-weight:800}.capability-grid,.use-case-grid,.pricing-grid,.tools-grid,.metric-grid,.status-grid,.goal-selection-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.capability-card{align-content:start;min-height:240px}.capability-card .tool-category{width:fit-content}.solutions-section{background:radial-gradient(circle at 12% 18%,#2563eb1a,#0000 26%),linear-gradient(#f1f5f9a8,#ffffff40);padding-top:72px}.solution-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px;display:grid}.solution-card{border-top:4px solid var(--brand-primary);align-content:start;gap:24px;min-height:520px;display:grid;overflow:hidden}.solution-card:nth-child(2){border-top-color:#7c3aed}.solution-card:nth-child(3){border-top-color:var(--info)}.solution-card-top,.solution-card-copy{gap:14px;display:grid}.solution-card-top{grid-template-columns:1fr auto;align-items:center}.solution-number{color:var(--text-tertiary);letter-spacing:.12em;font-size:13px;font-weight:800}.solution-card h3{letter-spacing:-.04em;font-size:clamp(1.6rem,2.1vw,2.2rem)}.solution-list{gap:12px;list-style:none;display:grid}.solution-list li{color:var(--text-secondary);padding-left:22px;line-height:1.5;position:relative}.solution-list li:before{background:var(--brand-primary);content:"";border-radius:50%;width:8px;height:8px;position:absolute;top:.62em;left:0}.solution-card:nth-child(2) .solution-list li:before{background:#7c3aed}.solution-card:nth-child(3) .solution-list li:before{background:var(--info)}.solution-outcome{border-top:1px solid var(--border-default);color:var(--text-primary);align-self:end;margin-top:auto;padding-top:20px;font-weight:700}.system-band{background:radial-gradient(circle at 82% 20%,#2563eb57,#0000 30%),linear-gradient(135deg,#0f172a,#172554 72%,#0f172a);padding:88px 0}.system-band-inner,.system-band-copy{gap:32px;display:grid}.system-band-copy{gap:16px;max-width:820px}.system-band-copy h2{max-width:16ch;color:var(--text-inverse);letter-spacing:-.05em;font-size:clamp(2.4rem,4vw,4.4rem)}.system-band-copy p:not(.section-eyebrow){color:#ffffffa8;max-width:700px;font-size:18px}.system-band .section-eyebrow{color:#93c5fd}.system-flow{grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:16px;display:grid}.system-node{border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff12;border:1px solid #ffffff24;gap:10px;min-height:178px;padding:26px;display:grid}.system-node span{color:#93c5fd;letter-spacing:.12em;font-size:12px;font-weight:800}.system-node strong{color:var(--text-inverse);font-size:1.3rem}.system-node p{color:#ffffff94}.system-connector{color:#60a5fa;font-size:1.5rem}.system-foundation{border-radius:var(--radius-lg);background:#ffffff1f;border:1px solid #ffffff1f;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;display:grid;overflow:hidden}.system-foundation span{color:#ffffffbd;text-align:center;background:#0f172ab8;padding:16px;font-size:13px;font-weight:700}.use-case-card{align-content:start;min-height:330px}.use-case-top>span{background:var(--brand-soft);color:var(--brand-primary);text-transform:uppercase;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800}.delivery-grid{border-top:1px solid var(--border-default);grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:40px;display:grid;position:relative}.delivery-stage{align-content:start;gap:16px;padding:32px 28px 8px 0;display:grid}.delivery-stage+.delivery-stage{border-left:1px solid var(--border-default);padding-left:28px}.delivery-stage>span,.principle-label{color:var(--brand-primary);letter-spacing:.1em;text-transform:uppercase;font-size:12px;font-weight:800}.delivery-stage h3{font-size:1.35rem}.why-section{padding-top:72px}.principle-stack .surface-card{box-shadow:none}.principle-stack h3{font-size:1.25rem;line-height:1.25}.capability-card h3,.use-case-card h3,.pricing-card h3,.tool-card h3,.upgrade-card h4{font-size:1.4rem}.pricing-card,.upgrade-card{gap:18px;display:grid}.pricing-card.featured,.upgrade-card.featured{box-shadow:var(--shadow-floating);border-color:#2563eb3d}.price-line{letter-spacing:-.05em;font-size:2.4rem;font-weight:800}.feature-list{color:var(--text-secondary);gap:12px;padding-left:18px;display:grid}.feature-list li{line-height:1.55}.detail-list{flex-direction:column}.detail-list div{gap:4px;display:grid}.detail-list dt{color:var(--text-tertiary);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:700}.marketing-footer{background:var(--background-dark);color:var(--text-inverse);padding:56px 0 72px}.marketing-footer h3,.marketing-footer p,.marketing-footer a,.marketing-footer span{color:#ffffffd1}.marketing-footer-grid{grid-template-columns:1.4fr repeat(3,minmax(0,1fr));gap:24px;display:grid}.footer-link-group,.footer-brand-block{gap:12px;display:grid}.auth-shell{min-height:100vh;position:relative;overflow:hidden}.auth-background{background:radial-gradient(circle at 100% 0,#2563eb29,#0000 30%),radial-gradient(circle at 0 100%,#0891b21f,#0000 25%);position:absolute;inset:0}.auth-main{width:min(1200px,100% - 40px);margin:0 auto;padding-top:40px;position:relative}.auth-brand{margin-bottom:24px}.auth-card{grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);align-items:stretch}.auth-card.single-column{grid-template-columns:1fr}.auth-card-main,.auth-side-panel{border-radius:var(--radius-2xl);box-shadow:var(--shadow-floating);background:#ffffffeb;border:1px solid #e2e8f0f2;padding:32px}.auth-side-panel{background:linear-gradient(#ffffffdb,#dbebffdb);align-content:start}.auth-form{gap:16px;display:grid}.auth-form label{color:var(--text-primary);gap:8px;font-weight:600;display:grid}.auth-form input{border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--background-surface);min-height:52px;padding:0 16px}.auth-inline-note{border-radius:var(--radius-md);background:var(--background-surface-secondary);color:var(--text-secondary);padding:14px 16px}.goal-card{text-align:left;gap:8px;padding:24px;display:grid}.goal-card small{color:var(--text-tertiary)}.app-shell{background:var(--background-base);grid-template-columns:240px minmax(0,1fr);min-height:100vh;display:grid}.workspace-nav{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffd6;border-right:1px solid #e2e8f0e6;align-content:space-between;gap:24px;padding:28px 20px;display:grid}.workspace-nav-brand p,.workspace-nav-footer p{color:var(--text-tertiary)}.workspace-nav-footer{gap:10px;display:grid}.workspace-nav-links{flex-direction:column}.workspace-nav-link,.workspace-mobile-tab{border-radius:var(--radius-md);color:var(--text-secondary);padding:14px 16px;font-weight:700}.workspace-nav-link.is-active,.workspace-mobile-tab.is-active{background:var(--brand-soft)}.workspace-mobile-tabs{z-index:30;box-shadow:var(--shadow-floating);background:#fffffff2;border-radius:22px;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:12px;display:none;position:fixed;bottom:16px;left:16px;right:16px}.app-frame{width:var(--workspace-width);margin:0 auto;padding:24px 0 48px}.app-topbar{justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;display:flex}.search-shell{min-width:280px;min-height:48px;color:var(--text-tertiary);align-items:center;padding:0 16px}.avatar-chip{background:var(--background-dark);width:42px;height:42px;color:var(--text-inverse);border-radius:16px;justify-content:center;align-items:center;font-weight:800;display:inline-flex}.page-intro{padding:6px 0 4px}.chat-stage{grid-template-columns:280px minmax(0,1fr);align-items:start}.conversation-rail,.chat-panel{border-radius:var(--radius-xl);box-shadow:var(--shadow-surface);background:#ffffffe6;border:1px solid #e2e8f0f2;padding:24px}.conversation-list{gap:12px;display:grid}.conversation-item{text-align:left;gap:8px;width:100%;padding:18px;display:grid}.conversation-item.is-active{background:#dbebff66;border-color:#2563eb38}.conversation-item small{color:var(--text-tertiary)}.chat-context,.message-stack,.tool-runtime,.option-stack,.upgrade-prompt,.upgrade-cards{gap:16px;display:grid}.chat-context{grid-template-columns:auto 1fr;align-items:center}.model-selector{border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--background-surface-secondary);gap:2px;min-width:120px;padding:14px 16px;display:grid}.model-selector small{color:var(--text-tertiary)}.message-bubble{gap:12px;padding:18px;display:grid}.message-user{background:#dbebff73;margin-left:56px}.message-assistant{margin-right:56px}.message-role,.message-footer,.streaming-indicator{color:var(--text-tertiary);font-size:13px;font-weight:700}.message-footer{justify-content:space-between;gap:12px;display:flex}.chat-composer{border:1px solid var(--border-default);border-radius:var(--radius-lg);background:var(--background-surface-secondary);gap:12px;padding:18px;display:grid}.chat-composer.is-disabled{background:#dc26260f}.composer-input-row{align-items:stretch}.composer-input{border-radius:var(--radius-md);background:var(--background-surface);min-height:120px;color:var(--text-secondary);border:1px solid #e2e8f0e6;flex:1;padding:18px}.composer-hint{color:var(--text-tertiary);font-size:13px}.tool-card,.runtime-status-card,.runtime-result-card,.file-uploader,.upgrade-card,.text-input-panel{gap:14px;padding:24px;display:grid}.tool-card-footer a{color:var(--brand-primary);font-weight:700}.tool-runtime-grid,.upgrade-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.file-uploader{text-align:center;border-style:dashed;place-items:center;min-height:220px}.file-uploader-icon{background:var(--brand-soft);width:56px;height:56px;color:var(--brand-primary);border-radius:18px;justify-content:center;align-items:center;font-weight:800;display:inline-flex}.option-row{border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--background-surface);color:var(--text-primary);align-items:center;gap:10px;padding:14px 16px;display:flex}.progress-bar{background:#e2e8f0e6;border-radius:999px;width:100%;height:12px;overflow:hidden}.progress-bar span{border-radius:inherit;background:linear-gradient(90deg, var(--brand-primary), #60a5fa);height:100%;display:block}.inline-banner{justify-content:space-between}.upgrade-prompt{border-radius:var(--radius-xl);box-shadow:var(--shadow-surface);background:linear-gradient(#ffffffeb,#dbebff94);border:1px solid #2563eb24;padding:28px}.metric-grid,.status-grid,.faq-page-list,.faq-preview-list,.principle-stack,.conversation-list,.message-stack{grid-template-columns:1fr}.metric-label{width:fit-content}.metric-value{letter-spacing:-.05em;font-size:2rem;font-weight:800}.metric-value.warning{color:var(--warning)}.legal-page{max-width:840px}@media (max-width:1100px){.chat-stage,.tool-runtime-grid,.auth-card{grid-template-columns:1fr}.tools-grid,.metric-grid,.status-grid,.goal-selection-grid,.upgrade-cards,.two-column-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.app-shell{grid-template-columns:1fr}.workspace-nav{display:none}.workspace-mobile-tabs{display:grid}.app-frame{width:min(100%,100% - 32px);padding-bottom:120px}}@media (max-width:900px){.hero-grid,.solution-grid,.system-flow,.why-grid,.final-cta-grid,.marketing-footer-grid{grid-template-columns:1fr}.capability-grid,.use-case-grid,.pricing-grid,.system-foundation,.delivery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.solution-card{min-height:0}.system-connector{justify-self:center;transform:rotate(90deg)}.delivery-grid{border-top:0;gap:20px}.delivery-stage,.delivery-stage+.delivery-stage{border-top:1px solid var(--border-default);border-left:0;padding:28px 0 0}}@media (max-width:760px){.container,.auth-main{width:min(100%,100% - 24px)}.marketing-header-inner,.marketing-actions,.marketing-nav,.app-topbar,.app-topbar-tools,.chat-context,.chat-panel-header,.composer-input-row,.inline-banner{flex-direction:column;align-items:stretch}.marketing-header-inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px 0;display:grid}.marketing-nav{flex-direction:row;grid-column:1/-1;align-items:center;padding:2px 0 4px;overflow-x:auto}.marketing-nav-link{white-space:nowrap;flex:none;font-size:14px}.marketing-actions{flex-direction:row;grid-area:1/2;align-items:center}.marketing-actions .text-link{display:none}.marketing-actions .button-link{min-height:40px}.capability-grid,.use-case-grid,.pricing-grid,.tools-grid,.metric-grid,.status-grid,.goal-selection-grid,.upgrade-cards,.two-column-grid,.system-foundation,.delivery-grid{grid-template-columns:1fr}.marketing-hero{padding-top:48px}.marketing-section,.solutions-section,.why-section{padding-top:28px;padding-bottom:56px}.section-heading-row{flex-direction:column;align-items:stretch}.section-side-note{text-align:left;max-width:none}.solution-grid{margin-top:28px}.system-band{padding:64px 0}.system-node{min-height:0}.preview-insight{flex-direction:column;align-items:flex-start}.capability-card,.use-case-card{min-height:0}.hero-copy-block h1{max-width:none}.search-shell{min-width:100%}.message-user,.message-assistant,.preview-message.assistant,.preview-message.user{margin:0}.surface-card,.chat-panel,.conversation-rail,.auth-card-main,.auth-side-panel{padding:22px}.connected-preview-item{grid-template-columns:auto minmax(0,1fr)}.connected-preview-item>span:last-child{display:none}}
