:root{--bg:#f6f8fc;--paper:#fff;--ink:#14243e;--muted:#596a82;--line:#dfe6f0;--accent:#2860e5;--soft:#edf3ff;--radius:14px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input{font:inherit}button,a,input{touch-action:manipulation}
header{max-width:1240px;margin:auto;padding:20px 5%;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:16px;font-weight:700;display:flex;align-items:center;gap:10px;white-space:nowrap;flex-shrink:0}.mark{width:35px;height:35px;display:grid;place-content:center;color:#fff;background:var(--accent);border-radius:10px}.badge{font-size:10px;color:var(--muted);border:1px solid var(--line);padding:4px 8px;border-radius:20px}nav{display:flex;align-items:center;justify-content:flex-end;gap:24px;font-size:13px}nav form{margin:0}main{max-width:1240px;margin:auto;padding:0 5%}footer{max-width:1240px;margin:auto;padding:24px 5%;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}
h1,h2,h3{color:var(--ink);font-weight:650;line-height:1.35}h1{font-size:clamp(32px,4.1vw,50px);letter-spacing:-.035em;margin:18px 0 24px}h1 em{font-style:normal;color:var(--accent)}h2{font-size:23px;letter-spacing:-.025em}h3{font-size:17px}.lead{font-size:15px;color:var(--muted);line-height:1.95;max-width:690px}.eyebrow,.index{font-size:11px;letter-spacing:.08em;color:var(--muted)}.dot,dot{display:inline-block;width:7px;height:7px;background:#168460;border-radius:50%;margin-right:8px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--accent);color:#fff;padding:10px 17px;min-height:42px;border:1px solid transparent;border-radius:9px;font:inherit;font-size:13px;font-weight:550;cursor:pointer;transition:background .15s ease}.button:hover{color:#fff;background:#194cbd}.small{padding:7px 13px;min-height:36px;font-size:12px}.text{border:0;background:none;color:inherit;font:inherit;cursor:pointer}.text:hover{color:var(--accent)}button:disabled{opacity:.5;cursor:not-allowed}.actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:28px}.subtle,.helptext,.capability-note{color:var(--muted);font-size:12px}.helptext{display:block}.errorlist{color:#b3263b;font-size:13px}.icon-definitions{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}.icon{display:inline-block;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}.mark .icon{width:23px;height:23px}.button .icon{width:16px;height:16px}
.hero{padding:72px 0 62px}.homepage .home-hero{display:grid;grid-template-columns:1.45fr 1fr;gap:52px;align-items:center}.home-hero h1{margin-top:0}.home-hero .lead{font-size:15px;max-width:660px;margin:0}.home-secondary{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:550}.home-secondary .icon{width:17px;height:17px}.hero-visual{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:27px;box-shadow:0 12px 35px #17346608}.hero-visual h2{font-size:16px;margin:0 0 22px}.hero-flow{display:grid;gap:0}.hero-flow>div{display:flex;gap:14px;padding:17px 0;align-items:center;border-top:1px solid var(--line)}.hero-flow .service-icon{margin:0;width:36px;height:36px}.hero-flow strong{font-size:13px;display:block}.hero-flow small{font-size:12px;color:var(--muted)}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid var(--line);padding-top:20px;margin-top:8px}.hero-stats strong{display:block;font-size:24px;line-height:1.25;color:var(--accent);letter-spacing:-.04em}.hero-stats span{font-size:11px;color:var(--muted)}
.home-catalog,.home-plans,.home-modes{padding:32px 0 40px;border-top:1px solid var(--line)}.home-section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:23px}.homepage h2{font-size:23px;margin:0}.home-section-heading p{margin:0;color:var(--muted);font-size:12px}.service-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:14px}.service-card{grid-column:span 3;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:23px 21px}.service-card.service-main,.write-grid .service-card{grid-column:span 4}.service-icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--soft);color:var(--accent);margin-bottom:19px}.service-icon .icon{width:20px;height:20px}.service-card h3{font-size:16px;margin:0 0 10px}.service-card p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}.capability-note{margin:20px 0 0;line-height:1.9}.status-pill{display:inline-flex;align-items:center;font-size:11px;border:1px solid #e7d5a3;background:#fff8e7;color:#80601b;border-radius:20px;padding:4px 11px;white-space:nowrap}
.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:24px}.mode-card{padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.mode-heading{display:flex;align-items:center;gap:10px}.mode-heading>.icon{color:var(--accent)}.mode-heading h3{margin:0;font-size:17px}.mode-card>p{font-size:13px;color:var(--muted);margin:16px 0 20px}.home-facts{list-style:none;padding:0;margin:0;display:grid;gap:12px}.home-facts li{display:flex;align-items:flex-start;gap:10px;font-size:12px}.home-facts .icon{color:var(--accent);width:16px;height:16px;margin-top:3px}.home-access{display:flex;align-items:flex-start;gap:12px;padding:17px 21px;background:var(--soft);color:#3e567a;border-radius:10px;margin-top:20px;font-size:12px}.home-access>.icon{width:17px;height:17px;margin-top:3px}.home-access p{margin:0}.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.plan-card{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}.plan-card+ .plan-card{border-color:#b9cdfb;background:#f7faff}.plan-card h3{font-size:25px;margin:0 0 8px;letter-spacing:-.035em}.plan-card>p{font-size:13px;color:var(--muted);margin:8px 0 17px;min-height:0}.plan-card .home-facts{margin-top:18px}.plan-card .button{margin-top:23px}.plan-card>.plan-price{font-size:27px;line-height:1.3;font-weight:600;color:var(--ink);margin:14px 0 20px}.closing{border-top:1px solid var(--line);padding:32px 0 42px}.home-closing{display:flex;align-items:center;justify-content:space-between;gap:25px}.home-closing p{color:var(--muted);font-size:13px;margin:12px 0 0}.home-closing .button{white-space:nowrap}
.auth{max-width:460px;margin:42px auto 64px;padding:30px;background:var(--paper);border:1px solid var(--line);border-radius:18px}.auth h1,.doc h1,#private-console h1{font-size:32px;letter-spacing:-.025em}.auth h1{margin-top:8px}.auth form{margin:24px 0}.auth label{display:block;font-size:13px;font-weight:550;margin-bottom:6px}input:not([type=checkbox]){display:block;width:100%;padding:9px 12px;min-height:42px;border:1px solid #cbd6e6;background:var(--paper);border-radius:8px;color:var(--ink);font:inherit}input::placeholder{color:#78869b}.check{display:flex;align-items:center;gap:8px;margin:14px 0;font-size:12px}.check input{accent-color:var(--accent)}.doc{max-width:900px;padding:48px 0 60px}.doc h2{margin-top:34px;font-size:21px}.doc p{color:var(--muted)}.doc pre{background:#eef2f8;border:1px solid var(--line);border-radius:10px;padding:18px;overflow-x:auto;white-space:pre-wrap}.doc .small{margin:0 10px 12px 0}code,pre{font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace}code{overflow-wrap:anywhere}table{border-collapse:collapse;width:100%;font-size:12px;font-variant-numeric:tabular-nums}th,td{text-align:left;border-bottom:1px solid var(--line);padding:11px 10px;overflow-wrap:anywhere}th{font-weight:600;color:var(--muted)}.table-wrap,.table-scroll{overflow-x:auto;max-width:100%}.table-scroll table{min-width:650px}.console-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.panel{padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);margin:20px 0}.panel h2{font-size:20px;margin:0 0 20px}.panel>p{font-size:13px;color:var(--muted)}#private-console{padding:32px 0 45px}.console-grid .panel{margin:0}#account-status{font-size:12px;color:var(--muted)}#new-key{overflow-wrap:anywhere;background:var(--soft);border-radius:9px;margin-top:20px}.key-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:18px 0;border-bottom:1px solid var(--line)}.key-row small{color:var(--muted)}.key-row button{margin-left:auto}.demo-outcomes{display:flex;gap:20px;font-size:19px;font-weight:600;color:var(--accent)}.terminal{background:#14243e;color:#e7edfa;border-radius:12px;overflow:hidden}.terminal-bar{padding:16px 20px;border-bottom:1px solid #34445d;display:flex;gap:5px;align-items:center}.terminal-bar span{width:6px;height:6px;border-radius:50%;background:#6c7f9e}.terminal-bar b{margin-left:auto;font:10px monospace}.terminal pre{padding:20px;overflow:auto}.muted{color:#94a6c5}.green{color:#99c4fc}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid article{padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.split{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;padding:50px 0}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #73a0ff;outline-offset:3px}
@media(max-width:1000px){.homepage .home-hero{gap:28px;grid-template-columns:1.3fr 1fr}.hero-visual{padding:22px}.service-card,.service-card.service-main{grid-column:span 6}.service-card:last-child{grid-column:span 12}.write-grid .service-card{grid-column:span 4}}
@media(max-width:760px){body{font-size:13px}header{padding:16px 5%;gap:14px;align-items:flex-start}.brand{font-size:13px;gap:8px}.mark{width:31px;height:31px;border-radius:9px}.mark .icon{width:20px;height:20px}nav{gap:10px;font-size:12px;flex-wrap:wrap}.badge{display:none}main{padding:0 5%}.hero{padding:42px 0 36px}.homepage .home-hero{grid-template-columns:1fr;gap:26px}.home-hero .lead{font-size:14px}.hero-visual{padding:21px;border-radius:14px}.hero-visual h2{font-size:15px;margin-bottom:16px}.hero-flow>div{padding:12px 0}.hero-stats{padding-top:17px}.hero-stats strong{font-size:22px}.home-section-heading{align-items:flex-start;gap:10px;flex-wrap:wrap;margin-bottom:20px}.homepage h2{font-size:21px}.home-catalog,.home-plans,.home-modes{padding:26px 0 30px}.service-grid{gap:12px}.service-card,.service-card.service-main,.service-card:last-child,.write-grid .service-card{grid-column:span 12;padding:21px}.service-icon{margin-bottom:15px}.service-card h3{font-size:16px}.service-card p{font-size:13px}.mode-grid,.plan-grid,.console-grid,.grid,.split{grid-template-columns:1fr;gap:14px}.mode-grid{margin-top:20px}.mode-card,.plan-card{padding:22px}.mode-heading h3{font-size:17px}.home-access{padding:17px}.home-closing{align-items:flex-start;flex-direction:column;gap:20px}.actions{gap:20px;margin-top:25px}.button{min-height:42px}.home-secondary{min-height:42px}.auth{padding:24px;margin:30px auto 45px}.auth h1,.doc h1,#private-console h1{font-size:29px}input:not([type=checkbox]){font-size:16px;min-height:44px}.check{min-height:40px}.panel{padding:21px}.panel h2{font-size:19px}.console-grid .panel{margin:0}#private-console{padding:28px 0 35px}.doc{padding:35px 0 45px}.demo .console-grid{gap:14px}.key-row{gap:12px}.closing{padding:27px 0 35px}footer{padding:22px 5%;flex-direction:column;gap:8px}.terminal pre{font-size:11px;padding:16px}.split{padding:35px 0}.plan-card>.plan-price{font-size:25px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.support{padding:30px 0 44px}.support h1{font-size:30px;overflow-wrap:anywhere}.support-narrow{max-width:760px;margin:auto}.support-heading{display:flex;align-items:center;justify-content:space-between;gap:18px}.support-heading .actions{margin:0}.support-form label{display:block;font-weight:550;margin-bottom:7px}.support-form textarea,.support-form select,.support-filters select{display:block;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font:inherit}.support-form textarea{min-height:140px;resize:vertical}.support-form input[type=checkbox]{width:auto;display:inline-block}.support-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:22px}.support-layout>section,.support-layout>aside{min-width:0}.support-status{background:var(--soft);color:var(--accent);border-radius:15px;padding:4px 10px;font-size:12px}.support-message{padding:16px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.support-message p{white-space:normal;margin:8px 0}.support-internal{background:#fff8e7;padding:14px;border-radius:9px}.support-errors{border-color:#b3263b;color:#9b1c32}.support-errors ul{padding-left:18px}.support-filters{display:flex;align-items:end;gap:12px;flex-wrap:wrap}.support-filters label{flex:1;min-width:130px;font-size:12px}.support-pagination{justify-content:center;gap:18px;margin-top:20px}.support details{border-bottom:1px solid var(--line);padding:13px 0}.support summary{cursor:pointer;font-weight:550}.button.secondary{background:var(--paper);color:var(--accent);border-color:var(--line)}textarea:focus-visible,select:focus-visible{outline:3px solid #73a0ff;outline-offset:2px}@media(max-width:760px){.support-layout{grid-template-columns:1fr;gap:0}.support-heading{align-items:flex-start;flex-direction:column}.support h1{font-size:27px}.support-form textarea,.support-form select,.support-filters select{font-size:16px}.support{padding-top:22px}.support-heading .actions{gap:12px}}

.public-article{max-width:860px;margin:auto}.public-article h1{font-size:clamp(27px,4vw,38px);line-height:1.4}.public-article .lead{font-size:15px}.public-article section{scroll-margin-top:24px}.public-article p,.public-article li{font-size:14px;line-height:1.95}.public-article li{margin:10px 0}.public-article .article-date{font-size:12px;color:var(--muted)}.breadcrumbs{justify-content:flex-start;font-size:12px;gap:10px;flex-wrap:wrap}.article-related{margin-top:40px;border-top:1px solid var(--line);padding-top:8px}.article-related ul{display:flex;gap:12px 24px;flex-wrap:wrap;list-style:none;padding:0}.public-links{gap:16px;flex-wrap:wrap}.public-links a{font-size:12px}.home-learning{padding:28px 0;border-top:1px solid var(--line)}.home-learning p{color:var(--muted);font-size:13px}

.plan-list-price{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin:10px 0 0}.plan-list-price span{font-size:12px;color:#355fbc}.plan-list-price + .plan-price{margin-top:6px}
.current-plan{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;margin:0 0 22px;border:1px solid #aac4fa;border-left:4px solid var(--accent);border-radius:var(--radius);background:var(--soft)}.current-plan-label{margin:0 0 6px;font-size:12px;color:var(--muted)}.current-plan-heading{display:flex;align-items:center;gap:12px}.current-plan-heading h2{font-size:30px;line-height:1.2;margin:0}.current-plan-state,.current-plan-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:12px;white-space:nowrap;color:var(--muted);background:#fff;border:1px solid var(--line)}.current-plan-state.active{color:#116746;background:#e4f5ec;border-color:#a9d9bd}.current-plan-meta{margin:8px 0 0;font-size:12px;color:var(--muted)}.plan-card-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.plan-card-heading h3{margin:0}.plan-card.is-current{border:2px solid var(--accent);background:#f3f7ff}.current-plan-badge{color:#fff;background:var(--accent);border-color:var(--accent)}@media(max-width:760px){.current-plan{padding:19px;align-items:flex-start;flex-wrap:wrap;gap:14px}.current-plan-heading h2{font-size:27px}.current-plan>.button{min-height:40px}.plan-card-heading{gap:8px}}