:root{--bg:#050a14;--bg-soft:#091222;--panel:rgba(12,25,45,0.76);--panel-solid:#0c192d;--panel-light:#101f35;--line:rgba(147,181,224,0.16);--line-strong:rgba(104,170,255,0.3);--text:#f3f7fc;--text-soft:#a9b8cd;--text-muted:#75879f;--blue:#4c86ff;--blue-strong:#2468f2;--cyan:#45d9ff;--green:#62e4b4;--danger:#ff8491;--shadow:0 26px 80px rgba(0,5,15,0.38);--radius-lg:28px;--radius-md:18px;--radius-sm:12px;--shell:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;color:var(--text);background:radial-gradient(circle at 77% 6%,rgba(37,105,242,.18),transparent 32rem),radial-gradient(circle at 16% 34%,rgba(30,186,226,.08),transparent 28rem),var(--bg);font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a{text-decoration:none}a,button{color:inherit}::selection{color:#fff;background:rgba(76,134,255,.72)}.shell{width:min(calc(100% - 48px),var(--shell));margin-inline:auto}.site-header{min-height:82px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(69,217,255,.48);border-radius:11px;color:var(--cyan);background:linear-gradient(145deg,rgba(76,134,255,.2),rgba(69,217,255,.06));box-shadow:inset 0 0 22px rgba(69,217,255,.08);font-weight:700}.brand>span:last-child{display:grid;gap:3px}.brand strong{font-size:15px;letter-spacing:.15em}.brand small{color:var(--text-muted);font-size:8px;letter-spacing:.2em}.button,.header-cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;transition:border-color .18s ease,background .18s ease,color .18s ease,transform .18s ease}.header-cta{min-height:40px;padding:0 18px;border:1px solid var(--line-strong);color:#dce9ff;font-size:13px}.button:hover,.header-cta:hover{transform:translateY(-1px)}.header-cta:hover{border-color:var(--cyan);background:rgba(69,217,255,.08)}.hero{min-height:620px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(390px,.88fr);align-items:center;gap:clamp(48px,7vw,96px);padding-block:82px 96px}.hero-copy{position:relative}.eyebrow,.section-index,.sources-label,.value-kicker{color:#88a9dc;font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}.eyebrow{display:flex;align-items:center;gap:9px;margin-bottom:24px}.online-dot,.ready-pill>span,.status-dot{width:7px;height:7px;display:inline-block;flex:0 0 auto;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(98,228,180,.09),0 0 14px rgba(98,228,180,.54)}.hero h1{max-width:720px;margin:0;font-size:clamp(48px,5.6vw,76px);line-height:1.08;letter-spacing:-.055em}.hero h1 em{color:transparent;background:linear-gradient(95deg,#79a5ff 0,var(--cyan) 92%);background-clip:text;-webkit-background-clip:text;font-style:normal}.hero-copy>p{max-width:650px;margin:28px 0 0;color:var(--text-soft);font-size:17px;line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{min-height:48px;padding:0 23px;border:1px solid transparent;font-size:14px;font-weight:650}.button.primary{color:#fff;background:linear-gradient(115deg,var(--blue-strong),#327cf7 64%,#279bd6);box-shadow:0 14px 32px rgba(36,104,242,.24)}.button.primary:hover{box-shadow:0 18px 38px rgba(36,104,242,.34)}.button.secondary{border-color:var(--line);color:#c9d5e7;background:rgba(255,255,255,.025)}.button.secondary:hover{border-color:var(--line-strong);background:rgba(76,134,255,.07)}.value-panel{position:relative;min-height:400px;padding:34px;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:linear-gradient(145deg,rgba(18,42,75,.86),rgba(7,16,31,.9)),var(--panel-solid);box-shadow:var(--shadow),inset 0 1px rgba(255,255,255,.04)}.value-panel:before{content:"";position:absolute;width:240px;height:240px;top:-80px;right:-70px;border-radius:50%;background:rgba(69,217,255,.1);filter:blur(3px)}.value-panel:after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(118,163,218,.035) 1px,transparent 0),linear-gradient(90deg,rgba(118,163,218,.035) 1px,transparent 0);background-size:38px 38px}.value-panel>*{position:relative;z-index:1}.value-flow{display:flex;align-items:center;justify-content:space-between;gap:9px;margin-top:64px;color:var(--text-muted)}.value-flow>span{display:grid;place-items:center;gap:9px;color:#cbd9ec;font-size:12px;text-align:center}.value-flow>span svg{color:var(--cyan)}.value-stat{display:flex;align-items:center;gap:18px;margin-top:52px;padding-top:28px;border-top:1px solid var(--line)}.value-stat strong{color:#fff;font-size:64px;font-weight:600;line-height:.9}.value-stat span{color:var(--text-soft);font-size:13px;line-height:1.55}.value-foot{display:flex;align-items:center;gap:9px;margin-top:30px;color:#8fa4bd;font-size:12px}.value-foot svg{color:var(--green)}.demo-notice{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:22px;margin-bottom:116px;padding:18px 22px;border:1px solid rgba(69,217,255,.16);border-radius:var(--radius-sm);background:rgba(69,217,255,.035)}.demo-notice>span{color:var(--cyan);font-size:10px;font-weight:800;letter-spacing:.14em}.demo-notice p{margin:0;color:#8798af;font-size:12px;line-height:1.7}.demo-notice strong{color:#c9d7e8}.experience,.knowledge{padding-bottom:126px}.section-heading{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);align-items:end;gap:70px;margin-bottom:40px}.section-heading.compact{grid-template-columns:1fr auto;align-items:center}.section-heading h2{margin:12px 0 0;font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-.04em}.section-heading>p{margin:0;color:var(--text-soft);font-size:14px;line-height:1.8}.demo-shell{min-height:650px;display:grid;grid-template-columns:310px minmax(0,1fr);overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:rgba(5,13,26,.88);box-shadow:var(--shadow)}.knowledge-pane{display:flex;flex-direction:column;padding:24px;border-right:1px solid var(--line);background:linear-gradient(160deg,rgba(15,34,59,.92),rgba(8,18,33,.88))}.chat-head,.pane-title{display:flex;align-items:center}.pane-title{justify-content:space-between;gap:10px;padding-bottom:19px;border-bottom:1px solid var(--line)}.pane-title>span{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:650}.pane-title svg{color:var(--blue)}.pane-title>small{color:var(--text-muted);font-size:8px;letter-spacing:.12em}.mini-documents{display:grid;gap:8px;margin-top:20px}.mini-documents>a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;min-height:62px;padding:10px 11px;border:1px solid transparent;border-radius:10px;color:#93a6be;transition:border-color .16s ease,background .16s ease,color .16s ease}.mini-documents>a:hover{border-color:var(--line);color:#d9e6f5;background:rgba(76,134,255,.07)}.mini-documents>a>svg:first-child{color:#678ec7}.mini-documents>a>svg:last-child{opacity:.55}.mini-documents span{min-width:0;display:grid;gap:4px}.mini-documents strong{color:#c4d2e4;font-size:12px;font-weight:600}.mini-documents small,.mini-documents strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mini-documents small{color:#61748d;font-size:9px}.knowledge-note{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:11px;margin-top:auto;padding:15px;border:1px solid rgba(98,228,180,.13);border-radius:11px;color:var(--green);background:rgba(98,228,180,.035)}.knowledge-note span{display:grid;gap:3px}.knowledge-note strong{color:#bfe9da;font-size:11px}.knowledge-note small{color:#6f8f88;font-size:9px}.chat-pane{min-width:0;display:flex;flex-direction:column;background:rgba(7,15,29,.82)}.chat-head{min-height:76px;gap:12px;padding:0 26px;border-bottom:1px solid var(--line);background:rgba(10,22,40,.72)}.agent-avatar,.spark-icon{display:grid;place-items:center;flex:0 0 auto;color:#dce9ff;background:linear-gradient(145deg,var(--blue-strong),#286bda 65%,#1d9cc5);box-shadow:0 8px 22px rgba(36,104,242,.22)}.agent-avatar{width:38px;height:38px;border-radius:11px}.chat-head>span:last-child{display:grid;gap:4px}.chat-head strong{font-size:13px}.chat-head small{display:flex;align-items:center;gap:7px;color:var(--text-muted);font-size:10px}.online-dot{width:5px;height:5px;box-shadow:0 0 9px rgba(98,228,180,.45)}.chat-body{min-height:460px;max-height:650px;flex:1;overflow-y:auto;padding:30px 32px;scrollbar-color:rgba(113,147,191,.32) transparent;scrollbar-width:thin}.welcome-state{max-width:600px;margin:32px auto 0;text-align:center}.spark-icon{width:50px;height:50px;margin:0 auto 20px;border-radius:15px}.welcome-state h3{margin:0;font-size:20px}.welcome-state>p{max-width:490px;margin:13px auto 24px;color:var(--text-soft);font-size:13px;line-height:1.75}.suggested-questions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;text-align:left}.suggested-questions button{min-height:46px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 13px;border:1px solid var(--line);border-radius:11px;color:#b8c7da;background:rgba(255,255,255,.022);cursor:pointer;font-size:11px;text-align:left;transition:border-color .16s ease,color .16s ease,background .16s ease}.suggested-questions button:hover{border-color:rgba(76,134,255,.48);color:#e7f0ff;background:rgba(76,134,255,.08)}.suggested-questions button svg{flex:0 0 auto;color:var(--blue);transform:rotate(45deg)}.message{display:grid;animation:message-in .22s ease both}.user-message{grid-template-columns:minmax(0,auto) 30px;justify-content:end;align-items:start;gap:10px;margin:5px 0 24px auto}.user-message>span{width:30px;height:30px;display:grid;place-items:center;order:2;border:1px solid var(--line);border-radius:9px;color:#8ea4c0;font-size:10px;background:rgba(255,255,255,.035)}.user-message p{min-width:0;max-width:520px;overflow-wrap:anywhere;margin:0;padding:11px 15px;border:1px solid rgba(76,134,255,.24);border-radius:14px 4px 14px 14px;color:#d9e7fb;background:rgba(36,104,242,.13);font-size:13px;line-height:1.65}.assistant-message{grid-template-columns:30px minmax(0,1fr);align-items:start;gap:11px;margin:0 0 25px}.assistant-message>span{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;color:#d9e7ff;background:#1d5ecb}.answer-content{min-width:0}.answer-content>p{margin:4px 0 0;color:#d7e2f1;font-size:13px;line-height:1.8;white-space:pre-wrap}.error-message .answer-content>p{color:var(--danger)}.error-message>span{color:#ffe0e3;background:rgba(184,57,74,.7)}.sources{display:grid;gap:8px;margin-top:19px}.sources-label{margin-bottom:2px;color:#6682a8;font-size:9px}.source-card{overflow:hidden;border:1px solid var(--line);border-radius:11px;background:rgba(15,30,51,.62)}.source-card summary{min-height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;padding:10px 13px;cursor:pointer;list-style:none}.source-card summary::-webkit-details-marker{display:none}.source-card summary>span:nth-child(2){min-width:0;display:grid;gap:3px}.source-card summary strong{overflow:hidden;color:#c8d7e9;font-size:11px;text-overflow:ellipsis;white-space:nowrap}.source-card summary small{color:#71849e;font-size:9px}.source-card summary>svg{color:#607c9f}.source-number{width:25px;height:25px;display:grid;place-items:center;border:1px solid rgba(76,134,255,.27);border-radius:8px;color:#8ab0f7;background:rgba(76,134,255,.07);font-size:9px;font-weight:700}.source-card[open] summary{border-bottom:1px solid var(--line)}.source-card>p{margin:0;padding:13px 14px 5px;color:#8fa2ba;font-size:11px;line-height:1.75}.source-card>a{display:inline-flex;align-items:center;gap:6px;margin:9px 14px 14px;color:#7fa9f8;font-size:10px}.searching{display:flex;align-items:center;gap:9px;margin:8px 0 18px 42px;color:#7890ae;font-size:11px}.spin{animation:spin .9s linear infinite}.chat-input{display:grid;grid-template-columns:minmax(0,1fr) 42px;align-items:center;gap:10px;margin:0 26px;padding:8px 8px 8px 17px;border:1px solid var(--line-strong);border-radius:15px;background:rgba(15,30,51,.82);transition:border-color .16s ease,box-shadow .16s ease}.chat-input:focus-within{border-color:rgba(69,217,255,.5);box-shadow:0 0 0 3px rgba(69,217,255,.05)}.chat-input input{min-width:0;border:0;outline:0;color:#e7f0fc;background:transparent;font-size:12px}.chat-input input::placeholder{color:#667a95}.chat-input button{width:42px;height:42px;display:grid;place-items:center;border:0;border-radius:11px;color:#fff;background:var(--blue-strong);cursor:pointer;transition:opacity .16s ease,background .16s ease}.chat-input button:hover:not(:disabled){background:var(--blue)}.chat-input button:disabled{opacity:.36;cursor:not-allowed}.chat-disclaimer{padding:10px 26px 14px;color:#53667f;font-size:9px;text-align:center}.ready-pill{display:inline-flex;align-items:center;gap:9px;padding:9px 13px;border:1px solid rgba(98,228,180,.18);border-radius:999px;color:#8eb7aa;background:rgba(98,228,180,.035);font-size:9px;font-weight:700;letter-spacing:.11em}.ready-pill>span{width:5px;height:5px;box-shadow:0 0 8px rgba(98,228,180,.45)}.document-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.document-card{position:relative;min-height:226px;display:flex;flex-direction:column;align-items:flex-start;padding:22px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:linear-gradient(155deg,rgba(15,32,55,.82),rgba(8,18,33,.76));transition:border-color .18s ease,transform .18s ease,background .18s ease}.document-card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:linear-gradient(155deg,rgba(20,44,76,.88),rgba(9,20,38,.82))}.document-card>svg{margin-top:17px;color:var(--blue)}.file-index{color:#526781;font-size:9px;letter-spacing:.12em}.document-card strong{margin-top:19px;color:#d3dfed;font-size:13px;line-height:1.5}.document-card small{margin-top:6px;color:#6f8199;font-size:9px;line-height:1.6}.open-file{display:flex;align-items:center;gap:6px;margin-top:auto;color:#769bdd;font-size:10px}.cta-section{border-block:1px solid var(--line);background:linear-gradient(90deg,rgba(21,70,156,.28),rgba(12,43,83,.24)),rgba(9,20,38,.72)}.cta-inner{min-height:360px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:clamp(48px,8vw,110px);padding-block:66px}.cta-inner h2{margin:13px 0 0;font-size:clamp(30px,4.2vw,48px);line-height:1.25;letter-spacing:-.045em}.cta-copy p{margin:0 0 24px;color:#a6b8cf;font-size:14px;line-height:1.85}.cta-copy .cta-status{margin:16px 0 0;color:var(--text-soft);font-size:12px}.button.light{color:#0b2852;background:#e7f3ff}.button.light:hover{background:#fff}footer.shell{min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:18px;color:#566981;font-size:10px}:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}@keyframes spin{to{transform:rotate(1turn)}}@keyframes message-in{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1000px){.hero{grid-template-columns:1fr;gap:56px;padding-top:68px}.value-panel{min-height:360px}.demo-shell{grid-template-columns:250px minmax(0,1fr)}.knowledge-pane{padding:20px 16px}.document-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:760px){.shell{width:min(calc(100% - 30px),var(--shell))}.site-header{min-height:72px}.header-cta{min-height:36px;padding-inline:13px;font-size:11px}.hero{min-height:auto;padding-block:58px 72px}.hero h1{font-size:clamp(42px,12vw,60px)}.hero-copy>p{font-size:15px}.demo-notice{grid-template-columns:1fr;gap:7px;margin-bottom:88px}.section-heading,.section-heading.compact{grid-template-columns:1fr;align-items:start;gap:20px}.demo-shell{grid-template-columns:1fr}.knowledge-pane{display:none}.chat-body{min-height:520px;padding:25px 18px}.suggested-questions{grid-template-columns:1fr}.chat-input{margin-inline:15px}.document-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cta-inner{grid-template-columns:1fr;gap:32px}}@media (max-width:480px){.brand small,.header-cta svg{display:none}.value-panel{min-height:350px;padding:25px 20px}.value-flow{margin-top:52px}.value-flow>span{font-size:10px}.value-stat strong{font-size:54px}.document-grid{grid-template-columns:1fr}.document-card{min-height:190px}footer.shell{min-height:110px;flex-direction:column;justify-content:center;align-items:flex-start}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}