@charset "UTF-8";
:root{color-scheme:light;--blue:#0272bf;--blue-dark:#125c8d;--ink:#112f43;--muted:#567084;--line:#dce7ed;--paper:#f7fafc;--gold:#e7b953;--green-deep:#125c8d;--green-mid:#1a78b5;--surface:#fff;--text-secondary:#567084}
*{box-sizing:border-box}html,body{height:100%;margin:0}body{font-family:Inter,"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-size:16px}button,textarea,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.48}a{color:var(--blue-dark)}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #dbac36;outline-offset:4px}button svg{width:22px;height:22px}button[hidden],[hidden]{display:none!important}.workspace{display:grid;grid-template-columns:246px minmax(0,1fr);height:100vh;height:100dvh;overflow:hidden}
.sidebar{position:relative;display:flex;flex-direction:column;padding:30px 21px 26px;color:#e9f5fd;background:#0b2f49;overflow:hidden}.company-logo{display:flex;align-items:center;width:190px;min-height:79px;padding:8px 14px;border-radius:8px;background:#fff}.company-logo img{display:block;width:158px;height:auto}.sidebar-section{color:#a2bbcb;font-size:11px;letter-spacing:1.3px;font-weight:600;margin:39px 8px 17px}.active-tool{display:flex;align-items:center;gap:11px;padding:14px;border:1px solid #39708f;border-radius:10px;background:#154764;font-weight:600;font-size:15px}.spark-icon{color:var(--gold);font-size:23px;line-height:1}.tool-dot{margin-left:auto;width:5px;height:5px;background:#80c8f4;border-radius:50%}.sidebar-new{color:#d4e7f3;display:flex;align-items:center;gap:12px;background:transparent;border:0;width:100%;padding:15px 13px;text-align:left;font-size:14px}.sidebar-new>span:first-child{font-size:22px}.sidebar-new:hover{color:#fff;background:#17415c;border-radius:8px}.resource-links{padding-top:22px;margin-top:7px;border-top:1px solid #365066;display:grid;gap:7px}.resource-links a{display:flex;align-items:center;gap:12px;color:#bdd3e2;text-decoration:none;font-size:14px;padding:10px 8px;line-height:1.5}.resource-links a span:last-child{margin-left:auto;color:#92b0c3}.resource-links a:hover{color:#fff}.sidebar-bottom{position:relative;margin-top:auto;padding:30px 9px 0;z-index:1}.slogan{font-size:18px;line-height:1.6;letter-spacing:-.3px;font-weight:500}.session-note{font-size:12px;color:#aac1d0;margin-top:20px;line-height:1.6;max-width:180px}.field-art{position:absolute;bottom:157px;left:0;width:246px;height:250px;opacity:.55;pointer-events:none;overflow:hidden}.field-lines{width:550px;height:390px;position:absolute;left:-130px;top:55px;border-radius:48%;transform:rotate(-32deg);background:repeating-radial-gradient(ellipse at 50% 50%,transparent 0 18px,#2f6380 19px 20px,transparent 21px 31px)}.field-orbit{position:absolute;width:70px;height:70px;right:27px;top:15px;border-radius:50%;border:1px solid #467890}.field-cross{position:absolute;top:35px;right:51px;color:#e9b855;font-size:24px}
#app{display:flex;flex-direction:column;min-height:0;min-width:0;position:relative;background:radial-gradient(ellipse at 78% 28%,#e7f2fa66,transparent 45%),var(--paper)}.header{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:91px;padding:19px 35px;border-bottom:1px solid var(--line);background:#ffffffd9;flex:none}.header-left{display:flex;gap:11px;align-items:center;min-width:0}.logo{display:none;width:38px;height:38px;border-radius:10px;background:#e7f3fb;color:var(--blue);align-items:center;justify-content:center;font-size:28px}.title{font-weight:700;font-size:20px;letter-spacing:-.6px}.subtitle{font-size:12px;color:var(--muted);margin-top:4px}.header-actions{display:flex;align-items:center;gap:14px;flex:none}.mode-switch{padding:4px;display:flex;background:#eaf0f5;border:1px solid #e2e9ef;border-radius:10px}.mode-btn{border:0;border-radius:7px;padding:7px 17px;background:transparent;color:#51697b;font-size:14px;font-weight:600;transition:background .15s}.mode-btn.active{background:#fff;color:var(--blue-dark);box-shadow:0 1px 4px #1739551b}.lang-select{background:#fff;border:1px solid #d8e3eb;border-radius:8px;font-size:14px;min-height:38px;max-width:151px;padding:5px 8px;color:var(--ink)}.newchat-btn{width:36px;height:36px;border:0;background:transparent;color:var(--muted);font-size:24px}.newchat-btn:hover{color:var(--blue);background:#eaf2f7;border-radius:8px}
.chat-area{overflow-y:auto;overflow-x:hidden;min-height:0;flex:1;padding:30px max(28px,calc((100% - 850px)/2));display:flex;flex-direction:column;gap:24px;scrollbar-width:thin;scrollbar-color:#bacddc transparent;overscroll-behavior:contain}.welcome-card{width:100%;max-width:750px;margin:14px auto 10px;animation:enter .4s ease-out}.welcome-topline{display:flex;gap:9px;align-items:center;color:#50758c;font-size:11px;font-weight:600;letter-spacing:1.55px}.tiny-cross{font-size:20px;color:var(--blue)}h1{font-size:clamp(30px,3.5vw,48px);font-weight:600;letter-spacing:-1.8px;line-height:1.12;margin:18px 0 17px}.welcome-text{font-size:16px;line-height:1.65;color:var(--muted);margin:0 0 30px;max-width:580px}.starter-label{display:flex;gap:20px;align-items:center;font-size:11px;letter-spacing:1.3px;font-weight:600;color:#698091;margin:10px 0 15px}.starter-rule{flex:1;height:1px;background:#dde7ee}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.topic-card{position:relative;min-height:122px;border:1px solid #d8e4ec;padding:18px 20px 17px 63px;background:#ffffffc9;border-radius:13px;text-align:left;color:var(--ink);transition:transform .15s,border-color .15s,box-shadow .15s;display:flex;flex-direction:column;gap:7px}.topic-card:hover{transform:translateY(-3px);border-color:#7ab3d6;box-shadow:0 7px 19px #2c607513}.topic-icon{position:absolute;top:18px;left:19px;display:grid;place-items:center;width:31px;height:31px;border-radius:8px;background:#eef6fb;color:#2378a7}.topic-icon svg{width:23px;height:23px}.topic-title{font-size:16px;line-height:1.35;font-weight:600;padding-right:18px}.topic-description{font-size:13px;line-height:1.55;color:var(--muted);max-width:190px}.topic-arrow{position:absolute;right:17px;top:19px;color:#6c8da3;font-size:18px}.draft-hint{font-size:12px;color:#637c8e;margin:15px 0 0;line-height:1.5}
.composer-wrap{padding:12px max(28px,calc((100% - 850px)/2)) 17px;flex:none;position:relative;background:linear-gradient(transparent,#f7fafc 14%)}.input-area{background:#fff;border:1px solid #c5d8e5;border-radius:16px;padding:15px 16px 10px;box-shadow:0 7px 30px #2f5c7510;transition:box-shadow .2s,border-color .2s}.input-area:focus-within{border-color:#599bc5;box-shadow:0 0 0 3px #bde1f533,0 7px 30px #2f5c7510}.text-input{display:block;width:100%;min-height:54px;max-height:156px;resize:none;border:0;background:transparent;padding:2px 4px 6px;color:var(--ink);font-size:16px;line-height:1.65;outline:0!important}.text-input::placeholder{color:#6e8798}.composer-tools{display:flex;align-items:center;gap:10px;justify-content:space-between;margin-top:6px}.input-tools{display:flex;align-items:center;gap:6px;min-width:0}.tool-btn{display:grid;place-items:center;flex:none;width:35px;height:35px;border:0;border-radius:8px;background:transparent;color:#658399}.tool-btn:hover{background:#eaf4fa;color:var(--blue)}.tool-btn.listening{background:#fff0ed;color:#aa4334;animation:pulse 1s infinite}.composer-hint{font-size:12px;color:#6b8393;margin-left:7px;line-height:1.5}.send-btn{display:grid;place-items:center;flex:none;width:39px;height:39px;background:var(--blue);border:0;border-radius:11px;color:#fff;box-shadow:0 3px 8px #0272bf25}.send-btn:hover:not(:disabled){background:#095c94}.stop-btn{display:flex;align-items:center;gap:8px;min-height:39px;background:#fff3e1;border:1px solid #dfc69e;border-radius:9px;color:#63470e;padding:7px 13px;font-size:14px}.footer{display:flex;justify-content:space-between;gap:18px;padding:11px 4px 0;color:#688193;font-size:11px;line-height:1.5}.footer #footer{white-space:nowrap}.jump-latest{position:absolute;left:50%;transform:translateX(-50%);top:-32px;box-shadow:0 3px 12px #233e5520;border:1px solid #c4d8e6;background:#fff;color:var(--blue-dark);border-radius:25px;padding:8px 16px;font-size:13px;z-index:5}
.msg-user{align-self:flex-end;max-width:85%;background:#e3f0fa;border:1px solid #d2e7f4;color:#17466b;padding:14px 19px;border-radius:16px 16px 4px 16px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere;font-size:16px}.msg-bot{align-self:stretch;position:relative;min-width:0;width:100%;padding:5px 0 21px;line-height:1.75;overflow-wrap:anywhere;border-bottom:1px solid var(--line);font-size:16px}.msg-bot .content{padding-right:35px}.msg-bot .content p{margin:8px 0}.msg-bot .content h4{font-size:17px;margin:22px 0 8px;line-height:1.5}.msg-bot .content h4:first-child{margin-top:4px}.msg-bot strong{font-weight:650;color:#174f72}.list-num,.list-bullet{display:flex;gap:11px;margin:8px 0}.list-num .num,.list-bullet .dot{color:#277fad;flex:none}.list-num .num{min-width:20px}.speaker-btn{position:absolute;right:0;top:7px;border:1px solid #dce7ee;background:#fff;border-radius:8px;width:31px;height:31px;font-size:14px;display:grid;place-items:center}.speaker-btn.active{background:#ddecf8}.answer-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:#657e90;font-size:12px;line-height:1.6;margin:4px 0 10px}.answer-meta span{padding:3px 8px;background:#edf3f7;border-radius:5px}.src-footer{border-left:2px solid #bdd5e5;padding:3px 11px;margin:19px 0 10px;color:#526f83;font-size:12px;line-height:1.65}.fb-row{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin-top:18px;font-size:12px;color:#617d8e}.fb-q{width:100%;margin-bottom:3px}.fb-btn{border:1px solid #d4e2eb;border-radius:6px;background:#fff;color:#53738b;padding:5px 9px;font-size:12px;min-height:29px}.fb-btn:hover{border-color:#80afcc;background:#edf6fa}.fb-more-panel{display:flex;flex-wrap:wrap;gap:6px;width:100%;padding-top:6px}.fb-thanks{color:#226848}.md-table{display:block;max-width:100%;overflow:auto;border-collapse:collapse;margin:14px 0;font-size:14px}.md-table th,.md-table td{border:1px solid #d3e1eb;padding:9px 12px;text-align:left;vertical-align:top;min-width:90px}.md-table th{background:#edf5f9}.msg-user img.user-img{max-width:220px;max-height:210px;margin:10px 0 0;display:block;border-radius:9px}.img-preview-bar{display:flex;gap:9px;overflow:auto}.preview-item{position:relative;flex:none;margin-bottom:9px}.preview-item img{width:64px;height:64px;object-fit:cover;border-radius:8px}.remove-img{position:absolute;right:-3px;top:0;background:#163d55;color:#fff;border:0;width:23px;height:23px;border-radius:50%}.loading{display:flex;flex-wrap:wrap;align-items:center;gap:6px;color:#5d7a8d;font-size:14px;line-height:1.7;padding:8px 0}.loading .dot{width:5px;height:5px;background:#2e83b6;border-radius:50%;animation:pulse 1.2s infinite}.loading .dot:nth-child(2){animation-delay:.2s}.loading .dot:nth-child(3){animation-delay:.4s}.loading .label{margin-left:6px}.switch-fast-btn{border:1px solid #bed4e3;border-radius:7px;padding:6px 10px;background:#fff;color:var(--blue-dark);font-size:13px;margin-left:6px}.streaming-cursor::after{content:'▍';color:var(--blue);animation:pulse .8s infinite}.offline-banner{background:#fff2cf;border-bottom:1px solid #e6cf90;color:#705017;padding:9px 25px;font-size:14px}.sr-only{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}.skip-link{position:fixed;top:-100px;left:15px;z-index:100;padding:12px;background:#fff;border:2px solid var(--blue)}.skip-link:focus{top:12px}noscript{position:fixed;bottom:15px;left:15px;right:15px;background:#fff3df;border:1px solid #e5bf7a;padding:20px;z-index:20}@keyframes pulse{50%{opacity:.4}}@keyframes enter{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
@media(min-width:1500px){.welcome-card{margin-top:35px}.chat-area{padding-top:42px}.topic-card{min-height:133px}}
@media(max-width:1100px){.workspace{grid-template-columns:204px minmax(0,1fr)}.sidebar{padding-left:15px;padding-right:15px}.company-logo{width:174px;padding:8px 12px}.company-logo img{width:150px}.header{padding:18px 24px}.header-actions{gap:9px}.mode-btn{padding:7px 12px}.chat-area{padding:24px}.composer-wrap{padding:10px 24px 15px}.topic-card{padding-left:53px;padding-right:14px}.topic-icon{left:13px}.topic-title{font-size:15px}.topic-description{font-size:12px}.field-art{left:-15px}.sidebar-section{font-size:10px}.resource-links a{font-size:13px}}
@media(max-width:850px){.workspace{grid-template-columns:1fr}.sidebar{display:none}.header{min-height:81px}.logo{display:flex}.chat-area{padding:25px max(22px,calc((100% - 720px)/2))}.composer-wrap{padding:10px max(22px,calc((100% - 720px)/2)) 14px}.welcome-card{max-width:680px;margin-top:8px}h1{font-size:39px}.topic-title{font-size:16px}.topic-description{font-size:13px}}
@media(max-width:560px){.header{padding:14px 16px 12px;gap:12px;flex-wrap:wrap}.header-left{flex:1}.header-actions{gap:8px;display:contents}.mode-switch{order:3;margin-top:4px}.lang-select{order:4;margin-top:4px;max-width:150px;margin-left:auto}.newchat-btn{order:2}.title{font-size:19px}.subtitle{font-size:11px;max-width:250px}.mode-btn{padding:5px 17px}.lang-select{min-height:35px}.chat-area{padding:23px 20px;gap:22px}.welcome-card{margin-top:0}.welcome-topline{font-size:9px;letter-spacing:1.2px}h1{font-size:36px;margin-top:15px;letter-spacing:-1.4px}.welcome-text{font-size:15px;margin-bottom:23px}.topic-grid{gap:10px}.topic-card{min-height:134px;padding:46px 12px 13px}.topic-icon{top:11px;left:12px;width:27px;height:27px}.topic-title{font-size:14px;line-height:1.4;padding-right:0}.topic-description{font-size:12px;line-height:1.4}.topic-arrow{top:13px;right:12px}.starter-label{font-size:10px}.draft-hint{font-size:11px}.composer-wrap{padding:8px 13px max(10px,env(safe-area-inset-bottom))}.input-area{padding:11px 11px 8px;border-radius:14px}.text-input{min-height:44px;font-size:16px}.composer-hint{font-size:10px;margin-left:1px;max-width:180px}.tool-btn{width:30px}.input-tools{gap:3px}.footer{font-size:10px;gap:12px;padding-top:8px}.footer #footer{display:none}.msg-user{max-width:95%;font-size:16px;padding:12px 16px}.msg-bot .content{padding-right:25px}.msg-bot{font-size:16px}.speaker-btn{width:26px;height:28px}.src-footer{font-size:12px}.answer-meta{font-size:11px}.offline-banner{padding:8px 16px;font-size:13px}}
@media(max-height:720px) and (min-width:851px){.welcome-card{margin:0 auto}.welcome-text{margin-bottom:20px}h1{font-size:38px}.topic-card{min-height:103px}.chat-area{padding-top:20px;padding-bottom:16px}.header{min-height:78px}.field-art{opacity:.25}.sidebar-section{margin-top:24px}}
.chat-area>.welcome-card,.chat-area>.msg-user,.chat-area>.msg-bot,.chat-area>.loading{flex-shrink:0}.mobile-resources{display:none}.fb-error{color:#974226;width:100%}.answer-meta{color:#795b23}.answer-meta:empty{display:none}
@media(max-width:850px){.mobile-resources{display:flex;justify-content:center;flex-wrap:wrap;gap:4px 22px;padding-top:4px;font-size:11px}.mobile-resources a{min-height:28px;display:flex;align-items:center;text-decoration:none}.mobile-resources a::after{content:' ↗';padding-left:5px}.field-art{display:none}}
@media(max-width:560px){.tool-btn{width:38px;height:40px}.mode-btn{min-height:35px}.lang-select{min-height:44px}.newchat-btn{width:40px;height:40px}.composer-hint{max-width:165px}.sidebar-new{min-height:44px}}
@media(max-width:560px){.header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px 12px;padding:12px 16px}.header-left{grid-column:1;grid-row:1}.header-actions{display:contents}.newchat-btn{grid-column:2;grid-row:1;justify-self:end}.mode-switch{grid-column:1;grid-row:2;justify-self:start;margin:0}.lang-select{grid-column:2;grid-row:2;margin:0;width:145px}.title{white-space:nowrap}.subtitle{white-space:normal;line-height:1.4}.logo{flex-shrink:0}.brand-text{min-width:0}.composer-wrap{padding-bottom:max(8px,env(safe-area-inset-bottom))}}
@media(max-width:560px){.header-left{grid-column:1/-1;padding-right:44px}.newchat-btn{z-index:1}.subtitle{max-width:260px}}
@media(max-width:350px){h1{font-size:32px}.welcome-text{font-size:14px}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:96px;padding:17px 16px 16px 57px}.topic-icon{top:17px}.topic-description{max-width:none}.topic-title{padding-right:15px}.topic-arrow{top:17px}.composer-hint{font-size:10px}}
@media(max-height:500px) and (max-width:850px){.header{min-height:0;padding-top:7px;padding-bottom:7px;gap:5px 10px}.header .subtitle{display:none}.logo{height:30px;width:30px}.header .title{font-size:17px}.newchat-btn{height:30px}.mode-btn{min-height:28px;padding-top:3px;padding-bottom:3px}.lang-select{min-height:35px}.composer-wrap{padding-top:5px;padding-bottom:5px}.composer-wrap .footer,.mobile-resources{display:none}.input-area{padding-top:7px;padding-bottom:6px}.text-input{height:35px;min-height:35px}.composer-tools{margin-top:0}.chat-area{padding-top:12px;padding-bottom:12px}}
@media(max-height:650px) and (min-width:851px){.welcome-card{display:grid;grid-template-columns:.85fr 1.15fr;gap:0 24px;max-width:850px}.welcome-topline{grid-column:1;font-size:9px;letter-spacing:.8px}.welcome-card h1{grid-column:1;font-size:32px;letter-spacing:-1px;margin:9px 0}.welcome-text{grid-column:1;font-size:14px;line-height:1.55;margin:5px 0}.starter-label{display:none}.topic-grid{grid-column:2;grid-row:1/5;gap:10px}.topic-card{min-height:99px;padding:14px 12px 12px 48px}.topic-icon{left:10px;top:14px;width:27px;height:27px}.topic-title{font-size:13px}.topic-description{font-size:11px}.topic-arrow{right:10px;top:13px;font-size:14px}.draft-hint{grid-column:1/-1;font-size:11px;margin-top:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Branded welcome and a lightweight presentation control. */
.sidebar{background:radial-gradient(ellipse at 0 0,#175b83 0,transparent 55%),linear-gradient(160deg,#0c3551,#08263e)}
.company-logo{border:1px solid #ffffff3d;box-shadow:0 10px 25px #001a2d24}
.active-tool{background:linear-gradient(110deg,#216b973d,#194561);border-color:#4788ae66;box-shadow:inset 0 1px #ffffff0c}
.header{background:#ffffffed;box-shadow:0 1px 0 #fff}
.presentation-btn{display:grid;place-items:center;flex:none;width:37px;height:37px;padding:7px;border:1px solid #d5e2eb;border-radius:9px;background:#fff;color:#4a6f88;transition:background .15s,border-color .15s}
.presentation-btn svg{width:20px;height:20px}
.presentation-btn:hover:not(:disabled),.presentation-btn[aria-pressed="true"]{background:#e8f3fb;border-color:#82b4d4;color:#075f98}
.welcome-card{display:block;max-width:850px;margin:5px auto 8px}
.hero-intro{isolation:isolate;position:relative;overflow:hidden;min-height:244px;padding:29px 34px 25px;border:1px solid #226e9b;border-radius:22px;color:#fff;background:radial-gradient(ellipse at 90% 0,#2b9ad65e,transparent 52%),linear-gradient(115deg,#0a314c 0%,#105c88 74%,#126b99 100%);box-shadow:0 16px 35px #163f6514}
.hero-intro>*:not(.hero-contours):not(.hero-grain){position:relative;z-index:1}
.hero-contours{position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.53;background:repeating-radial-gradient(ellipse at 110% 105%,transparent 0 21px,#8bd4f533 22px 23px,transparent 24px 39px);mask-image:linear-gradient(90deg,transparent 25%,#000 90%)}
.hero-grain{position:absolute;right:36px;bottom:6px;width:156px;height:207px;transform:rotate(12deg);color:#d0b866;opacity:.29;pointer-events:none;z-index:-1}
.hero-grain svg{width:100%;height:100%}
.hero-intro .welcome-topline{color:#b7dbed;font-size:10px;letter-spacing:1.55px;line-height:1.5;gap:8px}
.hero-intro .tiny-cross{color:#ecd387;font-size:19px}
.hero-intro h1{font-size:42px;font-weight:600;line-height:1.12;letter-spacing:-1.4px;margin:13px 0 12px;max-width:610px;text-wrap:balance}
.hero-intro .welcome-text{max-width:560px;margin:0;color:#d3e7f2;font-size:14px;line-height:1.6}
.capability-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:19px;color:#e0eff7;font-size:10px;line-height:1.5}
.capability-row span{padding:5px 9px;border:1px solid #b6dff52d;border-radius:6px;background:#07294030;backdrop-filter:blur(3px)}
.welcome-topics{padding-top:22px}
.welcome-topics .starter-label{display:flex;font-size:10px;letter-spacing:1.2px;margin:0 0 13px;color:#647e91}
.welcome-topics .topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}
.welcome-topics .topic-card{min-height:128px;padding:46px 13px 15px;border-radius:13px;background:#fff;border-color:#dce7ed;box-shadow:0 3px 7px #183f5a04}
.welcome-topics .topic-card:hover{border-color:#80b7d7;box-shadow:0 7px 17px #174c7214;transform:translateY(-3px)}
.welcome-topics .topic-icon{left:13px;top:12px;width:27px;height:27px;background:#eaf4fa}
.welcome-topics .topic-title{font-size:14px;line-height:1.35;padding-right:0}
.welcome-topics .topic-description{font-size:12px;line-height:1.45;max-width:none}
.welcome-topics .topic-arrow{top:14px;right:13px;font-size:16px}
.welcome-topics .draft-hint{font-size:11px;color:#698193;margin:12px 1px 0;line-height:1.5}
.input-area{border-color:#bbd2e1;box-shadow:0 6px 24px #17486e0c,0 1px 2px #17486e05}
.mode-btn.active{box-shadow:0 2px 6px #17395520;color:#065f99}
.send-btn{background:linear-gradient(145deg,#1689cd,#006bb3);box-shadow:0 4px 9px #0272bf25}
.is-presenting .msg-bot,.is-presenting .msg-user{font-size:18px}
@media(min-width:851px) and (max-height:700px){
 .welcome-card{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);gap:22px;align-items:stretch;max-width:850px;margin:0 auto}
 .hero-intro{min-height:246px;padding:25px 25px 20px;border-radius:19px}
 .hero-intro h1{font-size:34px;letter-spacing:-1px;line-height:1.13;margin:14px 0}
 .hero-intro .welcome-text{font-size:13px;line-height:1.6;max-width:290px}
 .hero-intro .welcome-topline{font-size:9px;letter-spacing:.8px}
 .hero-grain{right:-14px;bottom:-23px;width:130px;height:185px;opacity:.16}
 .capability-row{margin-top:20px;font-size:9px;gap:5px}
 .capability-row span{padding:4px 6px}
 .welcome-topics{padding:2px 0 0}
 .welcome-topics .starter-label{margin-bottom:11px}
 .welcome-topics .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
 .welcome-topics .topic-card{min-height:103px;padding:15px 12px 13px 45px}
 .welcome-topics .topic-icon{left:11px;top:14px;width:25px;height:25px}
 .welcome-topics .topic-title{font-size:13px;padding-right:12px}
 .welcome-topics .topic-description{font-size:11px}
 .welcome-topics .topic-arrow{top:13px;right:10px;font-size:14px}
 .welcome-topics .draft-hint{margin-top:10px;font-size:10px}
}
@media(min-width:851px) and (max-width:1050px){.hero-intro h1{font-size:33px}.welcome-topics .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.welcome-topics .topic-card{min-height:103px}}
@media(max-width:850px){
 .presentation-btn{display:none}
 .welcome-card{display:block;margin:0 auto 4px;max-width:680px}
 .hero-intro{min-height:0;padding:25px 25px 24px;border-radius:19px}
 .hero-intro h1{font-size:37px;letter-spacing:-1.2px}
 .hero-intro .welcome-text{font-size:14px;max-width:465px}
 .hero-grain{right:10px;bottom:-12px;width:125px;height:182px;opacity:.17}
 .capability-row{margin-top:17px}
 .welcome-topics{padding-top:20px}
 .welcome-topics .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
}
@media(max-width:560px){
 .hero-intro{padding:21px 21px 22px;border-radius:17px}
 .hero-intro h1{font-size:31px;line-height:1.16;letter-spacing:-.9px;margin:12px 0}
 .hero-intro .welcome-topline{font-size:8px;letter-spacing:.8px}
 .hero-intro .welcome-text{font-size:13px;line-height:1.6}
 .capability-row{font-size:9px;gap:6px;margin-top:16px}
 .capability-row span{padding:4px 7px}
 .welcome-topics .topic-card{min-height:123px;padding:45px 12px 13px}
 .welcome-topics .topic-title{font-size:13px}
 .welcome-topics .topic-description{font-size:11px}
 .welcome-topics .draft-hint{font-size:10px}
}
@media(max-width:350px){.hero-intro{padding:19px 18px}.hero-intro h1{font-size:28px}.hero-intro .welcome-text{font-size:12px}.welcome-topics .topic-grid{grid-template-columns:1fr}.welcome-topics .topic-card{min-height:86px;padding:17px 16px 15px 52px}.welcome-topics .topic-icon{top:16px}}
@media(prefers-reduced-motion:reduce){.welcome-topics .topic-card:hover{transform:none}.capability-row span{backdrop-filter:none}}

/* In-page presentation layout requires no browser permissions. */
.is-presenting .workspace{grid-template-columns:minmax(0,1fr)}
.is-presenting .sidebar{display:none}
.is-presenting .header{padding-left:max(28px,calc((100% - 1120px)/2));padding-right:max(28px,calc((100% - 1120px)/2))}
.is-presenting .header .logo{display:flex}
.is-presenting .chat-area,.is-presenting .composer-wrap{padding-left:max(28px,calc((100% - 980px)/2));padding-right:max(28px,calc((100% - 980px)/2))}
.is-presenting .welcome-card{max-width:980px}
.is-presenting .msg-bot,.is-presenting .msg-user{font-size:18px}
@media(max-width:850px){.is-presenting .presentation-btn{display:grid}.is-presenting .header{padding-left:20px;padding-right:20px}.is-presenting .chat-area,.is-presenting .composer-wrap{padding-left:20px;padding-right:20px}}
@media(max-width:560px){.is-presenting .newchat-btn{display:none}.is-presenting .presentation-btn{grid-column:2;grid-row:1;justify-self:end;z-index:1}.is-presenting .header{padding-left:16px;padding-right:16px}.is-presenting .composer-wrap{padding-left:13px;padding-right:13px}}