@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=Noto+Sans+SC:wght@400;500;700&display=swap");:root{--sage:#4e7a5b;--sage-hover:#3d6849;--sage-vivid:#5a9968;--sage-light:#e8f2eb;--sage-subtle:#c8dece;--sage-muted:#8bab96;--sage-deep:#2c4f36;--sage-glow:rgba(90,153,104,0.35);--ink:#1e1c19;--ink-secondary:#5c5850;--ink-muted:#928c82;--ink-faint:#bfb9b0;--ink-ghost:#dad5cd;--cream:#faf8f4;--surface:#f5f3ef;--surface-raised:#ffffff;--surface-sunken:#edeae4;--border:#e4dfd8;--border-strong:#d4cec5;--rail-bg:linear-gradient(180deg,#1f3028,#181d1a);--rail-icon:#6b856f;--rail-active:#a1d4ab;--rail-hover:rgba(255,255,255,0.06);--danger:#bf4f42;--danger-soft:#fdeeed;--warn:#c08840;--warn-soft:#fdf5ea;--gold:#c4a24e;--gold-soft:#fdf8ea;--rail-w:60px;--conv-w:252px;--doc-w:340px;--chat-max:720px;--r-xs:6px;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-2xl:24px;--r-full:9999px;--sh-sm:0 1px 3px rgba(30,28,25,0.04),0 1px 2px rgba(30,28,25,0.03);--sh-md:0 4px 16px rgba(30,28,25,0.06);--sh-lg:0 10px 36px rgba(30,28,25,0.09);--sh-xl:0 24px 64px rgba(30,28,25,0.14);--font-body:"Plus Jakarta Sans","Noto Sans SC",system-ui,sans-serif;--font-display:"Instrument Serif","Songti SC","Noto Serif SC",Georgia,serif;--ease:cubic-bezier(0.16,1,0.3,1)}*,:after,:before{box-sizing:border-box;margin:0}body,html{height:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}button{border:none;cursor:pointer;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:var(--r-full);font-weight:600;font-size:.8125rem;white-space:nowrap;border:1px solid transparent;transition:all .2s var(--ease);line-height:1.2;position:relative}.btn-primary{background:linear-gradient(135deg,var(--sage),var(--sage-hover));color:#fff;box-shadow:0 2px 8px var(--sage-glow)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--sage-glow);background:linear-gradient(135deg,var(--sage-vivid),var(--sage))}.btn-secondary{background:var(--surface-raised);color:var(--ink);border-color:var(--border);box-shadow:var(--sh-sm)}.btn-secondary:hover{background:var(--surface-sunken);border-color:var(--border-strong);transform:translateY(-1px)}.btn-ghost{color:var(--ink-secondary);padding:7px 12px}.btn-ghost:hover{background:var(--surface-sunken);color:var(--ink)}.btn-danger{color:var(--danger);background:var(--danger-soft)}.btn-danger:hover{background:#f8dedb}.btn-sm{padding:6px 13px;font-size:.75rem}.btn-icon{width:32px;height:32px;padding:0;border-radius:var(--r-sm);color:var(--ink-muted)}.btn-icon:hover{background:var(--surface-sunken);color:var(--ink)}.btn:disabled{opacity:.35;pointer-events:none}.field{display:grid;grid-gap:5px;gap:5px}.field-label{font-size:.8125rem;font-weight:600;color:var(--ink-secondary)}.field-input,.field-select,.field-textarea{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--r-md);background:var(--surface-raised);outline:none;transition:border-color .2s,box-shadow .2s;font:inherit;color:inherit}.field-input:focus,.field-select:focus,.field-textarea:focus{border-color:var(--sage-subtle);box-shadow:0 0 0 3px var(--sage-glow)}.field-textarea{resize:vertical;min-height:100px;line-height:1.7}.badge{display:inline-flex;align-items:center;padding:2px 9px;border-radius:var(--r-full);font-size:.6875rem;font-weight:700;letter-spacing:.02em}.badge-sage{background:var(--sage-light);color:var(--sage)}.badge-muted{background:var(--surface-sunken);color:var(--ink-muted)}.badge-warn{background:var(--warn-soft);color:var(--warn)}.badge-danger{background:var(--danger-soft);color:var(--danger)}.badge-gold{background:var(--gold-soft);color:var(--gold)}.auth-page{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:2rem;background:var(--cream);position:relative;overflow:hidden}.auth-page:after,.auth-page:before{content:"";position:absolute;border-radius:50%;filter:blur(90px);animation:blobFloat 14s ease-in-out infinite}.auth-page:before{width:600px;height:600px;top:-20%;right:-12%;background:radial-gradient(circle,rgba(90,153,104,.25) 0,rgba(200,222,206,.15) 50%,transparent 75%)}.auth-page:after{width:500px;height:500px;bottom:-15%;left:-10%;background:radial-gradient(circle,rgba(196,162,78,.2) 0,rgba(253,248,234,.1) 50%,transparent 75%);animation-delay:-7s}.auth-page .auth-center:before{content:"";position:fixed;inset:0;z-index:-1;opacity:.35;background-image:radial-gradient(circle,var(--border) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}.auth-center{width:100%;max-width:400px;text-align:center;position:relative;z-index:1}.auth-mark{width:56px;height:56px;border-radius:var(--r-lg);margin:0 auto 16px;background:linear-gradient(135deg,var(--sage-vivid),var(--sage-deep));display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 24px var(--sage-glow);animation:markPulse 3s ease-in-out infinite}.auth-title{font-family:var(--font-display);font-size:2.4rem;font-weight:400;letter-spacing:-.01em;margin-bottom:4px;color:var(--ink);background:linear-gradient(135deg,var(--ink),var(--sage-deep));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-tagline{color:var(--ink-muted);font-size:.9rem;margin-bottom:12px;letter-spacing:.08em;font-weight:500}.auth-divider{width:48px;height:2px;margin:0 auto 28px;background:linear-gradient(90deg,transparent,var(--sage),transparent);border-radius:2px}.auth-card{text-align:left;padding:28px;border-radius:var(--r-2xl);background:rgba(255,255,255,.85);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--sh-lg),0 0 0 1px rgba(255,255,255,.6) inset;border:1px solid rgba(228,223,216,.5)}.auth-tabs{display:flex;gap:2px;padding:3px;margin-bottom:22px;background:var(--surface-sunken);border-radius:var(--r-md)}.auth-tab{flex:1 1;padding:8px 0;border-radius:var(--r-sm);font-size:.8125rem;font-weight:600;color:var(--ink-muted);text-align:center;transition:all .2s}.auth-tab-active{background:var(--surface-raised);color:var(--ink);box-shadow:var(--sh-sm)}.auth-form{display:grid;grid-gap:14px;gap:14px}.auth-form .btn-primary{width:100%;padding:12px;margin-top:6px;font-size:.875rem}.auth-error{padding:10px 14px;border-radius:var(--r-sm);font-size:.8125rem;background:var(--danger-soft);color:var(--danger)}.auth-footer{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:28px}.auth-footer-chip{padding:7px 14px;border-radius:var(--r-full);background:rgba(255,255,255,.7);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(228,223,216,.5);font-size:.75rem;color:var(--ink-secondary);box-shadow:var(--sh-sm);transition:transform .2s var(--ease)}.auth-footer-chip:hover{transform:translateY(-2px)}.workspace{display:grid;grid-template-columns:var(--rail-w) var(--conv-w) 1fr;height:100vh;height:100dvh;overflow:hidden}.workspace.conv-collapsed{grid-template-columns:var(--rail-w) 0 1fr}.workspace.admin-mode{grid-template-columns:var(--rail-w) 1fr}.workspace.with-docs{grid-template-columns:var(--rail-w) var(--conv-w) 1fr var(--doc-w)}.workspace.conv-collapsed.with-docs{grid-template-columns:var(--rail-w) 0 1fr var(--doc-w)}.rail{display:flex;flex-direction:column;align-items:center;padding:14px 0;background:var(--rail-bg);z-index:10;gap:4px;position:relative}.rail:before{top:0;height:140px;background:radial-gradient(ellipse at 50% 0,rgba(90,153,104,.15) 0,transparent 70%)}.rail:after,.rail:before{content:"";position:absolute;left:0;right:0;pointer-events:none}.rail:after{bottom:0;height:80px;background:radial-gradient(ellipse at 50% 100%,rgba(196,162,78,.06) 0,transparent 70%)}.rail-logo{width:38px;height:38px;border-radius:var(--r-md);margin-bottom:18px;background:linear-gradient(135deg,var(--sage-vivid),var(--sage-deep));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.75rem;box-shadow:0 4px 16px rgba(90,153,104,.3);position:relative;z-index:1;transition:box-shadow .3s}.rail-logo:hover{box-shadow:0 4px 24px rgba(90,153,104,.5)}.rail-btn{width:42px;height:42px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;color:var(--rail-icon);transition:all .2s;position:relative;z-index:1}.rail-btn:hover{background:var(--rail-hover);color:var(--rail-active)}.rail-btn-active{color:var(--rail-active);background:rgba(161,212,171,.08)}.rail-btn-active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:22px;border-radius:0 4px 4px 0;background:var(--rail-active);box-shadow:0 0 10px rgba(161,212,171,.4)}.rail-spacer{flex:1 1}.rail-avatar{width:36px;height:36px;border-radius:var(--r-full);background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:var(--rail-icon);font-weight:700;font-size:.75rem;cursor:pointer;transition:all .25s;position:relative;z-index:1}.rail-avatar:hover{border-color:var(--rail-active);color:var(--rail-active);transform:scale(1.05)}.rail-popover{position:absolute;left:calc(var(--rail-w) + 8px);bottom:12px;width:240px;padding:8px;z-index:60;background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-lg);display:flex;flex-direction:column;gap:2px}.rail-popover-head{padding:10px 12px;border-bottom:1px solid var(--border);margin-bottom:6px}.rail-popover-head strong{display:block;font-size:.875rem}.rail-popover-head span{display:block;font-size:.75rem;color:var(--ink-muted);margin-top:2px}.rail-popover-item{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:var(--r-sm);font-size:.8125rem;text-align:left;color:var(--ink-secondary);transition:background .15s}.rail-popover-item:hover{background:var(--surface-sunken);color:var(--ink)}.rail-popover-item.danger{color:var(--danger)}.rail-popover-item.danger:hover{background:var(--danger-soft)}.conv-panel{display:flex;flex-direction:column;min-height:0;background:var(--surface);border-right:1px solid var(--border);overflow:hidden;transition:width .3s var(--ease)}.conv-collapsed .conv-panel{width:0;border-right:none;overflow:hidden}.conv-client{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s;flex-shrink:0;background:linear-gradient(180deg,var(--surface-raised) 0,var(--surface) 100%);text-align:left;width:100%}.conv-client:hover{background:var(--surface-sunken)}.conv-client-avatar{width:36px;height:36px;border-radius:var(--r-md);flex-shrink:0;background:linear-gradient(135deg,var(--sage-light),var(--sage-subtle));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;color:var(--sage);box-shadow:0 2px 8px rgba(78,122,91,.12)}.conv-client-info{flex:1 1;min-width:0}.conv-client-name{font-family:var(--font-display);font-size:1.05rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-client-meta{font-size:.6875rem;color:var(--ink-muted);margin-top:1px}.conv-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px 6px;flex-shrink:0}.conv-head-label{font-size:.625rem;font-weight:700;color:var(--ink-faint);letter-spacing:.1em;text-transform:uppercase}.conv-list{flex:1 1;min-height:0;overflow-y:auto;padding:4px 8px 8px;display:flex;flex-direction:column;gap:2px;scrollbar-width:thin;scrollbar-color:var(--ink-ghost) transparent}.conv-item{display:block;width:100%;text-align:left;padding:11px 12px;border-radius:var(--r-md);transition:all .18s;position:relative;border-left:3px solid transparent}.conv-item:hover{background:var(--surface-sunken)}.conv-item-active{background:var(--sage-light);border-left-color:var(--sage);box-shadow:0 2px 12px rgba(78,122,91,.1),inset 0 0 0 1px rgba(78,122,91,.06)}.conv-item-title{font-weight:600;font-size:.8125rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:3px}.conv-item-meta{font-size:.6875rem;color:var(--ink-muted);display:flex;gap:6px}.conv-item-del{position:absolute;top:8px;right:8px;width:22px;height:22px;border-radius:var(--r-xs);display:flex;align-items:center;justify-content:center;font-size:.875rem;color:var(--ink-faint);opacity:0;transition:opacity .12s;background:var(--surface-raised);border:1px solid var(--border)}.conv-item:hover .conv-item-del{opacity:1}.conv-item-del:hover{color:var(--danger);border-color:rgba(191,79,66,.2);background:var(--danger-soft)}.conv-empty{padding:28px 16px;text-align:center;color:var(--ink-muted);font-size:.8125rem}.main-content{display:flex;flex-direction:column;min-height:0;background:var(--cream);overflow:hidden}.topbar{justify-content:space-between;padding:10px 24px;border-bottom:1px solid var(--border);background:var(--surface-raised);flex-shrink:0;min-height:54px}.topbar,.topbar-left{display:flex;align-items:center}.topbar-left{gap:10px;min-width:0}.topbar-title{font-family:var(--font-display);font-size:1.05rem;white-space:nowrap}.topbar-dot{width:4px;height:4px;border-radius:var(--r-full);background:var(--ink-ghost);flex-shrink:0}.topbar-sub{font-size:.8125rem;color:var(--ink-muted);white-space:nowrap}.topbar-right{display:flex;align-items:center;gap:6px}.empty-state{flex:1 1;display:grid;place-items:center;padding:2rem}.empty-inner{max-width:320px;text-align:center}.empty-icon{width:52px;height:52px;border-radius:var(--r-xl);margin:0 auto 16px;background:linear-gradient(135deg,var(--sage-light),var(--sage-subtle));display:flex;align-items:center;justify-content:center;color:var(--sage);box-shadow:0 4px 16px rgba(78,122,91,.1);font-size:1.5rem;font-weight:700}.empty-inner h3{font-family:var(--font-display);font-size:1.3rem;margin-bottom:8px}.empty-inner p{font-size:.8125rem;color:var(--ink-muted);line-height:1.7;margin-bottom:16px}.chat-area{flex:1 1;display:flex;flex-direction:column;min-height:0}.chat-scroll{flex:1 1;overflow-y:auto;padding:28px 24px 16px;scrollbar-width:thin;scrollbar-color:var(--ink-ghost) transparent;background:linear-gradient(180deg,var(--cream) 0,var(--surface) 100%)}.chat-inner{max-width:var(--chat-max);margin:0 auto;display:flex;flex-direction:column;gap:22px}.msg{display:flex;gap:12px;animation:msgIn .32s var(--ease)}.msg-user{justify-content:flex-end}.msg-avatar{width:30px;height:30px;border-radius:var(--r-full);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.625rem;letter-spacing:.04em;margin-top:2px}.msg-assistant .msg-avatar{background:linear-gradient(135deg,var(--sage),var(--sage-deep));color:#fff;box-shadow:0 2px 8px rgba(78,122,91,.2)}.msg-thinking .msg-avatar{background:linear-gradient(135deg,var(--sage-vivid),var(--sage));color:#fff}.msg-bubble{max-width:82%;line-height:1.8}.msg-assistant .msg-bubble{padding:16px 20px;border-radius:4px var(--r-xl) var(--r-xl) var(--r-xl);background:var(--surface-raised);border:1px solid var(--border);border-left:3px solid var(--sage-subtle);box-shadow:var(--sh-sm);font-size:.875rem;position:relative}.msg-user .msg-bubble{padding:13px 18px;border-radius:var(--r-xl) var(--r-xl) 4px var(--r-xl);background:linear-gradient(135deg,var(--sage),var(--sage-hover));color:#fff;font-size:.875rem;box-shadow:0 4px 14px var(--sage-glow);white-space:pre-wrap}.msg-system .msg-bubble{padding:10px 16px;border-radius:var(--r-lg);background:var(--warn-soft);border:1px solid rgba(192,136,64,.18);text-align:center;font-size:.8125rem;margin:0 auto;max-width:90%}.msg-label{font-size:.625rem;font-weight:700;color:var(--ink-faint);letter-spacing:.04em;text-transform:uppercase;margin-bottom:5px}.msg-user .msg-label{text-align:right;color:rgba(255,255,255,.5)}.msg-time{font-weight:400;margin-left:4px}.msg-thinking .msg-bubble{padding:14px 18px;border-radius:4px var(--r-xl) var(--r-xl) var(--r-xl);background:var(--sage-light);border:1px solid var(--sage-subtle);font-size:.8125rem}.think-steps{display:flex;flex-direction:column;gap:6px}.think-step{display:flex;align-items:center;gap:8px;color:var(--ink-secondary);font-size:.8125rem}.think-dot{width:6px;height:6px;border-radius:var(--r-full);flex-shrink:0}.think-dot-done{background:var(--sage)}.think-dot-active{background:var(--sage-vivid);animation:pulse 1.4s ease infinite;box-shadow:0 0 8px var(--sage-glow)}.think-dot-error{background:var(--danger)}.think-step-active{color:var(--sage-deep);font-weight:600}.think-step-error{color:var(--danger);font-weight:600}.typing-ind{display:inline-flex;gap:3px;align-items:center;padding:2px 0}.typing-ind span{width:5px;height:5px;border-radius:var(--r-full);background:var(--sage-muted);animation:typBlink 1.2s ease-in-out infinite}.typing-ind span:nth-child(2){animation-delay:.15s}.typing-ind span:nth-child(3){animation-delay:.3s}.starters{max-width:520px;margin:auto;text-align:center;flex-direction:column;gap:16px;padding:32px 16px}.starters,.starters-icon{display:flex;align-items:center}.starters-icon{width:52px;height:52px;border-radius:var(--r-xl);background:linear-gradient(135deg,var(--sage),var(--sage-deep));justify-content:center;color:#fff;box-shadow:0 6px 20px var(--sage-glow);font-weight:700}.starters h2{font-family:var(--font-display);font-size:1.5rem;font-weight:400}.starters-sub{color:var(--ink-muted);font-size:.875rem;margin-top:-4px}.starters-grid{display:grid;grid-gap:8px;gap:8px;width:100%}.starter-card{padding:14px 18px 14px 48px;border-radius:var(--r-lg);text-align:left;background:var(--surface-raised);border:1px solid var(--border);font-size:.8125rem;line-height:1.65;color:var(--ink-secondary);cursor:pointer;position:relative;overflow:hidden}.starter-card,.starter-num{transition:all .22s var(--ease)}.starter-num{position:absolute;left:14px;top:14px;width:24px;height:24px;border-radius:var(--r-full);background:var(--sage-light);color:var(--sage);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.6875rem}.starter-card:hover .starter-num{background:var(--sage);color:#fff;box-shadow:0 2px 8px var(--sage-glow)}.starter-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--sage);opacity:0;transition:opacity .2s}.starter-card:hover{border-color:var(--sage-subtle);background:var(--sage-light);color:var(--sage-deep);transform:translateY(-2px);box-shadow:var(--sh-md)}.starter-card:hover:before{opacity:1}.composer{padding:14px 24px 18px;border-top:1px solid var(--border);background:var(--surface-raised);flex-shrink:0}.composer-inner{max-width:var(--chat-max);margin:0 auto}.composer-box{display:flex;gap:8px;align-items:flex-end;padding:8px 8px 8px 18px;border:1.5px solid var(--border);border-radius:var(--r-2xl);background:var(--cream);transition:all .25s;box-shadow:var(--sh-sm)}.composer-box:focus-within{border-color:var(--sage-subtle);background:var(--surface-raised);box-shadow:0 0 0 4px var(--sage-glow),var(--sh-md)}.composer-ta{flex:1 1;border:none;outline:none;background:transparent;padding:8px 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