:root{--brand:#3169ed;--brand-dark:#2058e2;--brand-soft:#eaf1ff;--ink:#202d42;--text:#2d374b;--muted:#8e99ab;--light:#f8faff;--line:#e9eef6;--line2:#dce5f0;--white:#fff;--danger:#df515d;--shadow:0 14px 48px rgba(32,54,95,.055);font-family:'DM Sans','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:var(--light)}
*{box-sizing:border-box}html,body{margin:0;height:100%;font-size:14px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.52;cursor:not-allowed}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.hidden{display:none!important}.small-muted{font-size:11px;color:var(--muted)}.eyebrow{font-size:10px;letter-spacing:.18em;font-weight:700;color:#8d9eb7}.status-dot,.online-indicator{display:inline-block;width:7px;height:7px;border-radius:50%;background:#48bf97;box-shadow:0 0 0 4px #e7f8f1;flex-shrink:0}.icon-button{border:0;background:transparent;color:#8794a7;border-radius:10px;display:grid;place-items:center;width:32px;height:32px;font-size:19px}.icon-button:hover{background:#eef3fb}.primary-button{border:0;border-radius:10px;background:var(--brand);color:#fff;font-weight:650;padding:11px 17px;box-shadow:0 5px 14px rgba(49,105,237,.16)}.primary-button:hover{background:var(--brand-dark)}.outline-button{background:#fff;color:#4f5e74;border:1px solid var(--line2);padding:9px 13px;border-radius:10px;font-size:12px;font-weight:600}.outline-button:hover{background:#f5f8ff;border-color:#bfcdeb}.error{background:#fff0f2;color:#ad3340;padding:10px 12px;border:1px solid #ffdce1;border-radius:10px;font-size:12px}.pill{display:inline-flex;border-radius:30px;padding:6px 10px;background:#edf3ff;color:#376ae7;font-size:11px;font-weight:700}.pill.draft{background:#fff5e8;color:#af7a28}.pill.processing{background:#e8f4ff;color:#3978bf}.pill.pending{background:#fff0ed;color:#d46a50}
/* Chat layout */
.shell{display:flex;width:100%;height:100dvh;overflow:hidden;background:#fff}.sidebar{width:264px;min-width:264px;display:flex;flex-direction:column;background:#f7f9fc;border-right:1px solid #eaf0f8;padding:24px 13px 14px;z-index:15}.brand{display:flex;align-items:center;gap:10px;padding:4px 15px 25px}.brand img{width:37px;height:37px;object-fit:contain}.brand strong{font-size:21px;letter-spacing:.075em;line-height:1.12;display:block;font-weight:750}.brand small{font-size:10px;letter-spacing:.025em;color:#9aa7ba;display:block;margin-top:4px}.close-mobile,.mobile-trigger{display:none}.new-chat{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid #e5ebf3;box-shadow:0 3px 12px rgba(47,74,125,.04);padding:12px 13px;width:100%;text-align:left;border-radius:12px;color:#344154;font-weight:600}.new-chat:hover{border-color:#c5d9ff;color:var(--brand)}.new-chat .plus{font-weight:300;font-size:21px;line-height:16px;color:#3771ed}.key-hint{margin-left:auto;color:#b4bfce;font-size:10px}.side-heading{font-size:11px;color:#9ba8bb;font-weight:600;padding:31px 16px 10px}.history{flex:1;overflow:auto;min-height:0;padding:0 3px;scrollbar-width:thin}.history-item{display:flex;align-items:center;width:100%;gap:10px;text-align:left;border:0;background:transparent;color:#627086;border-radius:9px;padding:11px 12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}.history-item .history-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item::before{content:'◇';color:#95a6be;flex-shrink:0;font-size:14px}.history-item:hover{background:#edf3fe}.history-item.active{background:#e9f0ff;color:#2c60d7;font-weight:700}.side-footer{border-top:1px solid #e7edf5;margin:8px 8px 0;padding:18px 5px 5px;color:#586980;font-size:12px}.side-footer .status-dot{margin-right:9px}.side-footer .small-muted{margin-top:9px}.release{font-size:10px;float:right;background:#e9eef7;border-radius:6px;padding:2px 5px;color:#9ba7b7}.sidebar-scrim{display:none}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column;background:radial-gradient(ellipse 40% 36% at 60% 12%,rgba(246,250,255,.7),transparent 90%),#fff}.chat-header{height:72px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 45px;border-bottom:1px solid rgba(231,237,245,.85)}.header-left,.header-right{display:flex;align-items:center;gap:12px}.header-title{font-weight:740;font-size:13px}.header-sub{font-weight:500;color:#8d9ab0}.header-chevron{color:#bec7d6;margin:0 7px}.header-right{color:#99a4b5;font-size:11px;gap:12px}.chat-viewport{flex:1;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth;min-height:0;scrollbar-color:#d7e0ec transparent;scrollbar-width:thin}.chat-column{max-width:852px;padding:0 30px;margin:auto;min-height:100%;display:flex;flex-direction:column}.welcome{margin:auto 0;padding:34px 0 58px;text-align:center}.welcome-emblem{width:74px;height:74px;margin:0 auto 18px;border-radius:26px;background:linear-gradient(145deg,#f9fbff,#e8f1ff);display:grid;place-items:center;box-shadow:0 12px 34px rgba(91,137,211,.08)}.welcome-emblem img{width:47px;height:47px}.welcome h1{font-size:32px;margin:12px 0 13px;letter-spacing:-.035em;font-weight:720}.welcome p{font-size:13px;color:#8b98ac;margin:0 0 28px}.suggestions{display:flex;justify-content:center;gap:9px;flex-wrap:wrap}.suggestions button{background:#fff;border:1px solid #e5eaf3;border-radius:100px;font-size:12px;color:#64758c;padding:10px 16px;transition:.17s}.suggestions button:hover{border-color:#b8d0ff;color:#3965d4;background:#f7faff}.suggestions span{margin-left:11px;color:#a3b3cc}.messages{padding-top:34px;display:flex;flex-direction:column;gap:32px}.message-row{display:flex;gap:14px;align-items:flex-start;max-width:100%;min-width:0}.message-row.user{justify-content:flex-end}.message-avatar{width:32px;height:32px;flex:0 0 32px;border-radius:11px;background:#eaf1ff;display:grid;place-items:center}.message-avatar img{width:25px;height:25px}.message-body{flex:1;min-width:0;max-width:100%}.message-name{font-size:12px;font-weight:700;margin:6px 0 11px;color:#293850}.message-row.user .message-body{flex:initial;max-width:min(80%,630px);background:#f0f4fb;padding:13px 18px;border-radius:17px 17px 5px 17px;color:#45546a;line-height:1.86;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px}.message-row.user .user-file{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #e0e8f3;border-radius:9px;padding:9px 12px;font-size:12px;margin:8px 0 0}.message-row.user a.user-file{color:#5272a7}.message-row.user .user-file:last-child{margin-bottom:0}.message-row.assistant .message-body{padding-right:3px;line-height:1.95}.message-actions{display:flex;gap:8px;margin-top:12px}.message-actions button{border:0;background:transparent;color:#96a4b8;font-size:11px;padding:3px 7px;border-radius:5px}.message-actions button:hover{color:#3265dd;background:#f0f4fb}.progress-area{padding:17px 0 30px;animation:enter .3s ease-out}.thinking{display:flex;gap:14px;align-items:flex-start}.thinking-panel{padding-top:4px;flex:1}.thinking-top{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:700;color:#33465f}.thinking-dots{display:flex;gap:3px}.thinking-dots i{display:block;width:4px;height:4px;background:var(--brand);border-radius:50%;animation:thinkingPulse 1.2s infinite ease-in-out}.thinking-dots i:nth-child(2){animation-delay:.16s}.thinking-dots i:nth-child(3){animation-delay:.32s}.thinking-step{margin-top:10px;color:#7d8ca2;font-size:12px;display:flex;align-items:center;gap:9px;transition:opacity .25s}.thinking-step::before{content:'';width:14px;height:14px;display:block;border-radius:50%;border:1.8px solid #9bb6f4;border-top-color:#3268e8;animation:rotate 1.1s linear infinite}.thinking-tip{font-size:11px;color:#a6b0c0;margin-top:12px}.typing-cursor{display:inline-block;width:6px;height:16px;background:#678ce3;vertical-align:-3px;animation:cursorBlink .8s infinite}.composer-wrap{padding:12px 36px 18px;background:linear-gradient(transparent,#fff 20%);flex-shrink:0}.composer-container{max-width:790px;margin:auto}.composer{background:#fff;border:1px solid #e4eaf4;border-radius:18px;box-shadow:0 8px 37px rgba(50,79,137,.10),0 1px 4px rgba(30,50,93,.03);padding:15px 14px 12px 17px;transition:.2s}.composer:focus-within{border-color:#cbdcfa;box-shadow:0 8px 40px rgba(47,105,211,.115)}.composer textarea{width:100%;resize:none;border:0;outline:0;min-height:29px;max-height:170px;overflow-y:auto;padding:3px 4px;line-height:1.7;color:#33435a;background:transparent;font-size:13px}.composer textarea::placeholder{color:#a8b2c1}.composer-tools{display:flex;justify-content:space-between;align-items:center;padding-top:8px}.composer-tools-left{display:flex;gap:8px;align-items:center;color:#a0adc0}.attach-button{width:29px;height:29px;border-radius:9px;display:grid;place-items:center;font-size:24px;color:#6e80a0;cursor:pointer;line-height:1}.attach-button:hover{background:#eef4ff}.attachment-label,.send-limit{font-size:11px}.send-limit{margin-left:18px;color:#abb7c9}.send-limit.full{color:#d58062}.send-button{height:34px;width:34px;border-radius:10px;background:#316af1;border:0;color:white;font-size:20px;display:grid;place-items:center}.send-button:not(:disabled):hover{background:#2058e2}.composer-note{text-align:center;color:#aeb8c6;font-size:10px;line-height:1.5;margin-top:12px}.file-chips{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:7px}.file-chip{background:#edf3ff;display:inline-flex;align-items:center;gap:9px;color:#5673a0;padding:6px 10px;border-radius:8px;font-size:11px}.file-chip button{border:0;background:transparent;color:#8d9fbc;padding:0;font-size:12px}.reply-banner{background:#f2f6ff;color:#5e75a2;font-size:12px;border-radius:9px;padding:10px 13px;margin-bottom:10px}.reply-banner.alert{background:#fff5f4;color:#b86b57}.md{font-size:13.5px;line-height:1.9;overflow-wrap:anywhere;color:#364358}.md p{margin:0 0 15px}.md p:last-child{margin-bottom:0}.md h1,.md h2,.md h3,.md h4{margin:22px 0 10px;line-height:1.46;color:#23324b}.md h1{font-size:23px}.md h2{font-size:19px}.md h3{font-size:16px}.md h4{font-size:14px}.md ul,.md ol{margin:7px 0 14px;padding-left:25px}.md li{padding-left:2px;margin:3px 0}.md blockquote{margin:14px 0;padding:5px 17px;background:#f6f9fe;border-left:3px solid #b6c8f3;color:#697c94;border-radius:0 9px 9px 0}.md :not(pre)>code{background:#f1f4f9;color:#d0556b;border:1px solid #e8edf5;border-radius:5px;padding:2px 5px;font-size:12px}.md pre{overflow:auto;margin:0;padding:16px;color:#dce7fa;background:#1c293a;font-size:12px;line-height:1.65;tab-size:2}.code-shell{overflow:hidden;border-radius:11px;border:1px solid #dce4ee;margin:13px 0}.code-label{background:#26374c;color:#aabbd3;padding:8px 16px;font-size:10px}.md .table-scroller{overflow-x:auto;max-width:100%;margin:13px 0;border:1px solid #e2e8f1;border-radius:9px}.md table{width:100%;border-collapse:collapse;min-width:380px;font-size:12px}.md th,.md td{padding:9px 12px;text-align:left;border-bottom:1px solid #e7ebf3}.md th{background:#f4f7fc;color:#42516a}.md tr:last-child td{border:0}.md hr{border:0;height:1px;background:#e6ebf3;margin:18px 0}@keyframes thinkingPulse{0%,100%{opacity:.18;transform:scale(.7)}50%{opacity:1;transform:scale(1)}}@keyframes rotate{to{transform:rotate(360deg)}}@keyframes cursorBlink{50%{opacity:0}}@keyframes enter{from{opacity:.3;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
/* Administration */
.admin-shell{display:flex;min-height:100dvh}.admin-side{width:250px;min-width:250px;background:#fff;border-right:1px solid var(--line);padding:24px 13px;display:flex;flex-direction:column}.admin-side .brand{padding:5px 11px 31px}.admin-side .brand strong{font-size:15px;letter-spacing:-.02em}.admin-side .brand small{font-size:9px;letter-spacing:.12em}.admin-side .side-heading{padding:16px 13px 11px}.admin-nav{display:flex;align-items:center;gap:12px;border:0;background:none;text-align:left;padding:13px;border-radius:10px;color:#728096;font-size:13px;margin:2px 0}.admin-nav span{flex:1}.admin-nav.active{background:#ebf2ff;color:#3066db;font-weight:700}.admin-nav b{border-radius:6px;background:#dce8ff;padding:3px 7px;color:#4169ca;font-size:10px}.admin-side-bottom{margin-top:auto;display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding:18px 7px 4px;color:#7c8ba1;font-size:11px}.logout{margin-left:auto;border:0;background:transparent;color:#9eabbc;font-size:11px}.admin-main{flex:1;min-width:0;padding:0 34px 40px;overflow:auto;max-height:100dvh}.admin-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);height:105px;margin-bottom:25px}.admin-top h1{font-size:23px;margin:8px 0 0;letter-spacing:-.035em}.top-actions{display:flex;align-items:center;gap:14px}.admin-avatar{background:#e9f0ff;color:#3468d5;border-radius:50%;display:grid;place-items:center;width:36px;height:36px;font-weight:800}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-bottom:19px}.stat{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px 23px;min-width:0}.stat span{color:#7f8ca0;font-size:12px}.stat strong{display:block;font-size:28px;margin:10px 0 4px;letter-spacing:-.04em;color:#273950}.stat small{color:#a5b0bf;font-size:10px}.workarea{display:grid;grid-template-columns:minmax(260px,32%) minmax(0,1fr);gap:16px;min-height:635px}.ticket-list,.ticket-detail,.panel{border-radius:15px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}.ticket-list{display:flex;flex-direction:column;min-height:0}.panel-head{padding:19px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.panel-head h2{font-size:14px;margin:0 0 5px}.panel-head small{color:var(--muted);font-size:11px}.mini-refresh{border:0;background:#f3f6fa;color:#6480ac;border-radius:8px;font-size:19px;width:30px;height:30px}.ticket-scroll{overflow-y:auto;min-height:180px;flex:1;max-height:660px}.ticket-item{display:flex;flex-direction:column;gap:9px;padding:18px 20px;border:0;background:#fff;border-bottom:1px solid var(--line);text-align:left;width:100%;transition:.15s}.ticket-item:hover{background:#f8faff}.ticket-item.active{background:#eef4ff;border-left:3px solid var(--brand);padding-left:17px}.ticket-item .ticket-line{display:flex;align-items:center;justify-content:space-between;gap:5px}.ticket-item strong{color:#2c3a52;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ticket-item p{color:#8b98ac;font-size:11px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;margin:0;max-width:100%}.ticket-item time{font-size:10px;color:#a5b2c6}.ticket-detail{min-height:640px;display:flex;flex-direction:column}.empty-task{margin:auto;text-align:center;color:#a3b1c5}.empty-task span{color:#9bb5ec;font-size:34px}.empty-task h3{color:#43536c;font-size:16px}.empty-task p{font-size:12px}.detail-bar{display:flex;justify-content:space-between;align-items:center;padding:22px 24px 16px;border-bottom:1px solid var(--line)}.detail-bar h2{margin:0 0 7px;font-size:16px}.detail-bar small{color:#9da9b9;font-size:10px}.task-chat{padding:23px 24px;max-height:260px;min-height:150px;overflow:auto;display:flex;flex-direction:column;gap:15px;background:#fdfdff}.admin-message .admin-message-label{color:#8190a6;font-size:10px;margin-bottom:6px}.admin-message.user .admin-message-content{border-radius:10px 10px 10px 2px;background:#eff3fb;padding:12px 15px;color:#40516a;max-width:90%;white-space:pre-wrap;line-height:1.8;font-size:12px;overflow-wrap:anywhere}.admin-message.assistant .admin-message-content{border-radius:10px;background:#f0f7ff;padding:12px 15px;max-width:90%}.admin-message.assistant{align-self:flex-end;max-width:90%}.admin-message.assistant .admin-message-label{text-align:right}.admin-file{display:inline-block;border:1px solid #dce6f2;background:#fff;padding:7px 11px;border-radius:6px;margin:6px 6px 0 0;font-size:11px}.task-actions{display:flex;flex-wrap:wrap;gap:8px;padding:14px 22px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.reply-editor{padding:20px 24px}.reply-editor-top{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:12px}.reply-editor-top strong{font-size:13px}.reply-editor-top span{font-size:11px;color:#a1acb9}.reply-editor textarea{padding:13px;display:block;width:100%;border-radius:11px;border:1px solid #dfe7f2;line-height:1.8;font-size:12px;resize:vertical;outline:none;min-height:140px;color:#34435b}.reply-editor textarea:focus{border-color:#9bb8f8;box-shadow:0 0 0 3px #eff4ff}.reply-preview{background:#fbfdff;padding:15px;margin-top:12px;border:1px solid var(--line);border-radius:11px;max-height:265px;overflow:auto}.reply-actions{margin-top:13px;display:flex;justify-content:flex-end;gap:8px}.reply-actions .primary-button{font-size:12px;padding:10px 17px}.reply-editor .error{margin-top:12px}.history-panel,.settings-panel{max-width:1040px}.history-list-row{display:flex;align-items:center;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line);font-size:12px;color:#6d7c95}.history-list-row strong{flex:1;font-size:12px;color:#36465e}.history-panel .panel-head h2{margin:0}.settings-panel{padding:24px}.settings-panel h2{margin:0;font-size:17px}.settings-panel p{font-size:12px;color:#91a0b5}.setting-row{display:flex;justify-content:space-between;padding:17px 0;border-bottom:1px solid var(--line);font-size:13px;gap:12px}.setting-row strong{color:#5e7391}.settings-panel button{margin-top:20px}.help-note{line-height:1.9}.toast{position:fixed;right:28px;bottom:26px;background:#283953;color:#fff;padding:12px 20px;box-shadow:0 10px 35px #2343;border-radius:11px;font-size:12px;z-index:50}.admin-app.alerting .admin-top{background:linear-gradient(90deg,transparent,#fff5f4)}.admin-app.alerting #enableNotice{border-color:#ebaaaa;color:#cf5353;animation:alertGlow 2s infinite}@keyframes alertGlow{50%{box-shadow:0 0 0 7px rgba(239,103,101,.07)}}
/* Login */
.login-screen{min-height:100dvh;display:grid;place-items:center;background:radial-gradient(circle at 50% 30%,#eaf1ff 0,#f9fbff 45%,#f5f8fc 100%)}.login-card{width:min(410px,90vw);background:#fff;border:1px solid var(--line);box-shadow:0 24px 100px rgba(45,78,140,.09);padding:40px;border-radius:20px;display:flex;flex-direction:column;gap:12px}.login-card img{margin-bottom:3px}.login-card h1{margin:0;font-size:24px}.login-card p{margin:0 0 28px;font-size:12px;color:#9ba9bb}.login-card label{font-size:12px;font-weight:700;margin-bottom:2px}.login-card input{padding:12px 13px;border:1px solid #e1e7f0;border-radius:10px;outline:0;margin-bottom:10px}.login-card input:focus{border-color:#8db0f4}.login-card .primary-button{margin-top:5px}
@media(max-width:1000px){.admin-side{width:210px;min-width:210px}.admin-main{padding:0 20px 28px}.workarea{grid-template-columns:250px minmax(0,1fr)}.task-actions{padding:12px}.reply-editor{padding:16px}.chat-header{padding:0 26px}}
@media(max-width:720px){.sidebar{position:absolute;left:0;top:0;bottom:0;transform:translateX(-100%);transition:transform .25s ease;width:284px;min-width:284px;box-shadow:10px 0 45px rgba(48,70,110,.13)}.shell.sidebar-open .sidebar{transform:none}.shell.sidebar-open .sidebar-scrim{display:block;position:absolute;inset:0;background:rgba(27,37,58,.27);z-index:12}.close-mobile,.mobile-trigger{display:grid}.close-mobile{margin-left:auto}.chat-header{padding:0 17px;height:60px}.header-right{display:none}.chat-column{padding:0 18px}.welcome{padding:32px 0 70px}.welcome h1{font-size:26px}.welcome p{font-size:12px;line-height:1.8}.welcome-emblem{width:66px;height:66px}.suggestions{gap:6px}.suggestions button{font-size:11px;padding:10px 13px}.composer-wrap{padding:8px 11px 12px}.composer{border-radius:15px}.composer-note{font-size:9px}.messages{gap:26px;padding-top:26px}.message-row.user .message-body{max-width:89%}.message-row.assistant .message-body{padding-right:0}.md{font-size:13px}.send-limit{margin-left:4px}.admin-shell{display:block}.admin-side{width:100%;min-width:0;position:sticky;top:0;z-index:30;padding:6px 8px;background:#fff;display:flex;flex-direction:row;align-items:center;overflow-x:auto}.admin-side .brand{padding:0 8px 0 2px;min-width:115px;gap:5px}.admin-side .brand img{width:28px;height:28px}.admin-side .brand strong{font-size:11px}.admin-side .brand small,.admin-side .side-heading,.admin-side-bottom{display:none}.admin-nav{font-size:11px;padding:10px 9px;white-space:nowrap;gap:4px}.admin-nav b{display:none}.admin-main{max-height:none;padding:0 12px 30px}.admin-top{height:85px;margin-bottom:14px}.admin-top h1{font-size:19px}.admin-top .top-actions{gap:6px}.admin-top .top-actions button{font-size:10px;padding:8px}.admin-avatar{display:none}.stats{gap:7px}.stat{padding:13px 12px;border-radius:12px}.stat strong{font-size:22px}.stat span{font-size:10px}.stat small{font-size:9px}.workarea{display:flex;flex-direction:column}.ticket-scroll{max-height:170px}.ticket-detail{min-height:450px}.task-chat{max-height:240px}.task-actions{gap:6px}.task-actions button{font-size:10px;padding:8px}.reply-editor-top span{font-size:9px}.reply-actions button{font-size:10px;padding:9px}.login-card{padding:30px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;transition:none!important;scroll-behavior:auto!important}}

/* Refined adaptive thought surface: category-specific preparatory stages, no fictitious tool events. */
.thinking-header{display:flex;align-items:center;gap:9px;margin-top:13px;color:#476386;font-size:12px;min-height:24px}
.thinking-header strong{font-size:12px;font-weight:650}
.thinking-star{color:var(--brand);font-size:17px;animation:thinkingPulse 1.7s infinite ease-in-out}
.thinking-soft-dots{display:flex;align-items:center;gap:3px}
.thinking-soft-dots b{display:block;width:3px;height:3px;border-radius:50%;background:#819dcb;animation:thinkingPulse 1.5s infinite}
.thinking-soft-dots b:nth-child(2){animation-delay:.2s}.thinking-soft-dots b:nth-child(3){animation-delay:.4s}
.thinking-list{display:flex;flex-direction:column;gap:9px;margin-top:12px;padding:13px 15px;border:1px solid #e7eef9;border-radius:14px;background:linear-gradient(145deg,#fbfdff,#f7faff);max-width:380px}
.thinking-item{display:flex;align-items:center;gap:10px;color:#adb9cb;font-size:11px;line-height:1.5;transition:color .3s}
.thinking-index{display:grid;place-items:center;flex-shrink:0;width:19px;height:19px;border-radius:50%;font-size:10px;border:1px solid #dfe7f2;background:#fff;color:#abb8cb}
.thinking-item.active{color:#466589;font-weight:650}.thinking-item.active .thinking-index{background:#e8f0ff;color:#306be6;border-color:#a7c5ff;box-shadow:0 0 0 3px rgba(49,105,237,.055)}
.thinking-item.done{color:#8ca2c2}.thinking-item.done .thinking-index{color:#fff;background:#83abec;border-color:#83abec}
.thinking-item.done .thinking-index::after{content:'✓';position:absolute;background:#83abec;width:18px;height:18px;display:grid;place-items:center;border-radius:50%}
@media(max-width:720px){.thinking-list{max-width:100%}}

/* Web settings: persistent history deletion (R1 update). */
.settings-trigger{width:100%;display:flex;align-items:center;gap:10px;background:transparent;border:0;border-radius:10px;color:#62738d;padding:11px 7px;margin:0 0 12px;font-weight:600;font-size:12px;text-align:left;transition:background .16s,color .16s}
.settings-trigger:hover{background:#ecf2fb;color:#315fcb}
.settings-trigger>span:first-child{font-size:17px;font-weight:400}
.settings-arrow{margin-left:auto;font-size:12px;color:#aebbd0}
.settings-dialog{border:1px solid #edf0f6;box-shadow:0 35px 100px rgba(24,46,78,.18);background:#fff;color:#263650;border-radius:19px;padding:0;width:min(450px,calc(100vw - 32px));max-height:calc(100dvh - 40px);overflow:auto}
.settings-dialog::backdrop{background:rgba(24,39,65,.42);backdrop-filter:blur(5px)}
.settings-dialog-head{display:flex;align-items:center;justify-content:space-between;padding:26px 28px 19px;border-bottom:1px solid #eff2f7}
.settings-dialog-head .eyebrow{font-size:9px;color:#859bbd;letter-spacing:.12em}
.settings-dialog-head h2{margin:7px 0 0;font-size:21px;font-weight:720;letter-spacing:-.025em}
.settings-dialog-content{padding:25px 28px 30px}
.settings-section-title{font-size:11px;color:#8797af;font-weight:670;margin-bottom:14px}
.settings-danger-card{border:1px solid #f0e5e6;background:#fffafa;border-radius:14px;padding:18px;display:flex;gap:12px;align-items:center}
.settings-danger-text{flex:1;min-width:0}.settings-danger-text strong{font-size:13px;color:#42465a}.settings-danger-text p{font-size:11px;line-height:1.75;color:#8e92a0;margin:8px 0 0}
.settings-danger-outline{background:#fff;border:1px solid #f1bbc0;color:#ca4150;border-radius:9px;font-size:12px;font-weight:700;padding:9px 15px;flex-shrink:0}.settings-danger-outline:hover{background:#fff1f3}
.settings-confirm-icon{height:42px;width:42px;border-radius:12px;background:#ffeff0;color:#cb4150;font-size:23px;font-weight:740;display:grid;place-items:center;margin-bottom:17px}
.settings-dialog-content h3{font-size:17px;margin:0 0 10px;letter-spacing:-.02em}
.settings-dialog-content>p{color:#8290a6;font-size:12px;line-height:1.9;margin:0 0 22px}
.settings-confirm-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.settings-cancel,.settings-danger-solid{padding:10px 17px;border-radius:10px;font-size:12px;font-weight:700}
.settings-cancel{background:#fff;color:#5d6b80;border:1px solid #dde4ef}.settings-cancel:hover{background:#f6f8fc}
.settings-danger-solid{background:#d74856;border:1px solid #d74856;color:#fff}.settings-danger-solid:hover{background:#be3240}
.settings-clear-error{border:1px solid #ffd5dc;color:#b92f42;background:#fff2f3;border-radius:10px;padding:11px 13px;font-size:12px}
@media(max-width:720px){.settings-dialog-head{padding:22px 20px 17px}.settings-dialog-content{padding:21px 20px 25px}.settings-danger-card{align-items:flex-start;flex-direction:column}.settings-danger-outline{align-self:flex-end}}