:root{--ink: #111114;--ink-2: #5d5d68;--ink-3: #9a9aa5;--line: #ededf1;--line-strong: #dedee4;--paper: #ffffff;--paper-2: #fbfbfd;--paper-3: #f6f6f9;--pink: #f0699a;--pink-strong: #e4558a;--pink-soft: #ffe9f1;--pink-100: #fff4f8;--pink-200: #ffe1eb;--ok: #1f8a68;--danger: #c0392b;--radius-xl: 28px;--radius-lg: 20px;--radius-md: 14px;--radius-sm: 10px;--shadow-sm: 0 1px 2px rgba(17, 17, 20, .04);--shadow-md: 0 10px 30px rgba(17, 17, 20, .06);--shadow-lg: 0 30px 80px rgba(17, 17, 20, .14);--ease: cubic-bezier(.22, 1, .36, 1);--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace}*,*:before,*:after{box-sizing:border-box}[hidden]{display:none!important}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}button,input,textarea,select{font:inherit;color:inherit}button{border:0;background:none;padding:0;cursor:pointer;-webkit-tap-highlight-color:transparent}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit;text-decoration:none}::selection{background:var(--pink-200)}:focus-visible{outline:2px solid var(--pink);outline-offset:2px;border-radius:8px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:999px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--ink-3);background-clip:content-box}.boot-screen{height:100dvh;display:grid;place-items:center;background:var(--pink-100)}.boot-spinner{width:28px;height:28px;border-radius:50%;border:2.5px solid var(--pink-200);border-top-color:var(--pink);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 26px;border-radius:999px;font-size:15.5px;font-weight:600;letter-spacing:.01em;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .2s,border-color .2s,color .2s;white-space:nowrap}.btn:active{transform:scale(.97)}.btn-dark{background:var(--ink);color:#fff;box-shadow:0 6px 18px #11111429}.btn-dark:hover{transform:translateY(-1px);box-shadow:0 14px 34px #11111438}.btn-pink{background:var(--pink);color:#fff;box-shadow:0 8px 24px #f0699a47}.btn-pink:hover{background:var(--pink-strong);transform:translateY(-1px)}.btn-ghost{background:#ffffffb3;border:1px solid var(--line-strong);color:var(--ink);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.btn-ghost:hover{background:#fff;border-color:var(--ink-3);transform:translateY(-1px)}.btn-sm{height:40px;padding:0 18px;font-size:14px}.btn-block{width:100%}.home{min-height:100dvh;display:flex;flex-direction:column;position:relative;overflow-x:hidden;background:radial-gradient(1000px 560px at 88% -12%,#ffe1eb,#ffe1eb00 62%),radial-gradient(820px 480px at 2% 4%,#fff0f5,#fff0f500 58%),#fff}.home-nav,.home-main,.home-foot{transition:padding-right .58s var(--ease)}.home-nav,.home-foot,.home-main{transition:transform .58s var(--ease),padding-right .58s var(--ease)}.home.panel-open .home-nav,.home.panel-open .home-foot{transform:translate(-36px)}.home.panel-open .home-main{transform:translate(-36px) scale(.9);transform-origin:left top}.home.panel-open .features{grid-template-columns:repeat(2,minmax(0,1fr))}.home-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px clamp(20px,5vw,64px);position:relative;z-index:10}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-.01em}.brand img{width:38px;height:38px;border-radius:12px;object-fit:cover;box-shadow:0 4px 14px #f0699a47}.brand-name{font-size:17px}.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:.08em;margin-top:1px}.nav-actions{display:flex;align-items:center;gap:10px}.version-chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;border-radius:999px;border:1px solid rgba(17,17,20,.07);background:#fff9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);font-size:12.5px;color:var(--ink-2);cursor:default}.version-chip i{width:6px;height:6px;border-radius:50%;background:var(--pink)}.home-main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:clamp(36px,7vh,92px) clamp(20px,5vw,64px) 40px}.hero{max-width:820px}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;background:#ffffffbf;border:1px solid rgba(240,105,154,.22);color:var(--pink-strong);font-size:12.5px;font-weight:600;letter-spacing:.04em;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:rise .7s var(--ease) both}.hero h1{margin:26px 0 0;font-size:clamp(42px,6.4vw,78px);line-height:1.03;letter-spacing:-.038em;font-weight:750;animation:rise .7s .06s var(--ease) both}.hero h1 em{font-style:normal;background:linear-gradient(120deg,#f0699a,#ff9dbc 55%,#f0699a);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{margin:26px 0 0;max-width:560px;font-size:clamp(15px,1.35vw,17.5px);line-height:1.8;color:var(--ink-2);animation:rise .7s .12s var(--ease) both}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;animation:rise .7s .18s var(--ease) both}@keyframes rise{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:clamp(56px,9vh,110px)}.feature{position:relative;padding:28px 26px 30px;border-radius:var(--radius-xl);background:#ffffffad;border:1px solid rgba(17,17,20,.055);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 2px 10px #11111408;transition:transform .35s var(--ease),box-shadow .35s var(--ease);animation:rise .8s var(--ease) both}.feature:nth-child(2){animation-delay:.06s}.feature:nth-child(3){animation-delay:.12s}.feature:hover{transform:translateY(-4px);box-shadow:0 22px 48px #11111414}.feature-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--pink-100);color:var(--pink-strong);margin-bottom:18px}.feature-icon svg{width:22px;height:22px}.feature h3{margin:0 0 8px;font-size:16.5px;font-weight:650;letter-spacing:-.01em}.feature p{margin:0;font-size:13.5px;line-height:1.75;color:var(--ink-2)}.home-foot{padding:28px clamp(20px,5vw,64px) 40px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12.5px;color:var(--ink-3);flex-wrap:wrap}.panel-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:80;background:#28122029;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .45s var(--ease)}.panel-backdrop.open{opacity:1;pointer-events:auto}.login-panel{position:fixed;top:0;right:0;bottom:0;width:min(440px,100vw);z-index:90;display:flex;flex-direction:column;background:linear-gradient(180deg,#fff,#fffafc);border-left:1px solid rgba(17,17,20,.06);box-shadow:-40px 0 100px #11111424;transform:translate(104%);transition:transform .58s var(--ease)}.login-panel.open{transform:none}.login-head{display:flex;align-items:flex-start;justify-content:space-between;padding:30px 30px 0}.login-head h2{margin:0;font-size:26px;font-weight:720;letter-spacing:-.02em}.login-head p{margin:8px 0 0;font-size:13.5px;color:var(--ink-2)}.icon-btn{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:var(--ink-2);transition:background .2s,color .2s}.icon-btn:hover{background:var(--paper-3);color:var(--ink)}.icon-btn svg{width:18px;height:18px}.login-body{flex:1;overflow-y:auto;padding:28px 30px 30px}.field{margin-bottom:18px}.field label{display:block;margin-bottom:8px;font-size:12.5px;font-weight:600;color:var(--ink-2);letter-spacing:.02em}.field input{width:100%;height:52px;padding:0 16px;border-radius:14px;border:1px solid var(--line-strong);background:#fff;font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s}.field input:focus{border-color:var(--pink);box-shadow:0 0 0 4px var(--pink-soft)}.field input::placeholder{color:var(--ink-3)}.login-meta{display:flex;align-items:center;justify-content:space-between;margin:6px 0 22px;font-size:12.5px;color:var(--ink-3)}.login-msg{margin:0 0 16px;padding:11px 14px;border-radius:12px;font-size:13px;line-height:1.6;background:#fff4f4;color:var(--danger);border:1px solid #ffe0dd;animation:rise .25s var(--ease)}.login-note{margin-top:22px;padding:16px 18px;border-radius:16px;background:var(--pink-100);border:1px solid var(--pink-200);font-size:12.5px;line-height:1.75;color:var(--ink-2)}.login-note strong{color:var(--ink)}.login-foot{padding:18px 30px 26px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-3);line-height:1.7}.chat-shell{display:flex;height:100dvh;overflow:hidden;background:#fff}.chat-side{width:286px;flex:none;display:flex;flex-direction:column;background:var(--paper-2);border-right:1px solid var(--line)}.side-head{padding:18px 16px 10px;display:flex;flex-direction:column;gap:14px}.side-brand{display:flex;align-items:center;gap:10px;padding:0 4px}.side-brand img{width:34px;height:34px;border-radius:11px;object-fit:cover}.side-brand strong{display:block;font-size:14.5px;font-weight:700;letter-spacing:-.01em}.side-brand span{display:block;font-size:11px;color:var(--ink-3);margin-top:2px}.new-chat-btn{display:flex;align-items:center;gap:8px;width:100%;height:42px;padding:0 14px;border-radius:12px;background:#fff;border:1px solid var(--line-strong);font-size:13.5px;font-weight:600;box-shadow:var(--shadow-sm);transition:background .18s,border-color .18s,transform .14s var(--ease)}.new-chat-btn:hover{background:var(--pink-100);border-color:var(--pink-200)}.new-chat-btn:active{transform:scale(.985)}.new-chat-btn svg{width:16px;height:16px;color:var(--pink-strong)}.side-list{flex:1;overflow-y:auto;padding:4px 10px 12px}.side-label{padding:14px 8px 6px;font-size:10.5px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase}.session-item{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:11px;cursor:pointer;color:var(--ink-2);transition:background .16s,color .16s;animation:fadeIn .25s var(--ease) both}.session-item:hover{background:#1111140b;color:var(--ink)}.session-item.active{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm);border:1px solid var(--line)}.session-item svg{width:15px;height:15px;opacity:.7;flex:none}.session-title{flex:1;min-width:0;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-actions{display:flex;gap:2px;opacity:0;transition:opacity .16s}.session-item:hover .session-actions{opacity:1}.mini-btn{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;color:var(--ink-3);transition:background .16s,color .16s}.mini-btn:hover{background:#1111140f;color:var(--ink)}.mini-btn.danger:hover{background:#fff0f0;color:var(--danger)}.mini-btn svg{width:14px;height:14px}.side-empty{padding:30px 14px;text-align:center;font-size:12.5px;line-height:1.8;color:var(--ink-3)}.side-foot{padding:12px 14px 16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:8px}.side-link{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border-radius:9px;font-size:12.5px;color:var(--ink-2);transition:background .16s,color .16s}.side-link:hover{background:#1111140d;color:var(--ink)}.side-link svg{width:16px;height:16px}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column}.chat-top{height:58px;flex:none;display:flex;align-items:center;gap:12px;padding:0 20px;border-bottom:1px solid transparent;transition:border-color .2s}.chat-top.scrolled{border-bottom-color:var(--line)}.chat-top .menu-btn{display:none}.chat-top-title{flex:1;min-width:0;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-right{display:flex;align-items:center;gap:8px}.model-chip{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;border-radius:999px;border:1px solid var(--line);font-size:11.5px;color:var(--ink-2)}.model-chip i{width:6px;height:6px;border-radius:50%;background:var(--pink)}.user-chip{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 12px 0 6px;border-radius:999px;border:1px solid var(--line);font-size:12.5px;color:var(--ink-2);background:#fff}.user-chip .avatar-dot{width:22px;height:22px;border-radius:50%;background:var(--pink-soft);color:var(--pink-strong);display:grid;place-items:center;font-size:11px;font-weight:700}.chat-scroll{flex:1;overflow-y:auto;position:relative}.chat-inner{width:100%;max-width:780px;margin:0 auto;padding:18px 24px 30px}.chat-empty{min-height:calc(100dvh - 240px);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:30px 0;animation:fadeIn .4s var(--ease) both}.chat-empty img{width:64px;height:64px;border-radius:20px;box-shadow:0 12px 30px #f0699a38}.chat-empty h1{margin:22px 0 8px;font-size:clamp(22px,2.8vw,30px);font-weight:720;letter-spacing:-.02em}.chat-empty p{margin:0;color:var(--ink-2);font-size:14px;line-height:1.7;max-width:440px}.suggestions{margin-top:32px;width:100%;max-width:540px;display:grid;gap:9px}.suggestion{display:flex;align-items:center;gap:12px;padding:13px 15px;border-radius:15px;border:1px solid var(--line);background:#fffc;text-align:left;transition:border-color .2s,transform .2s var(--ease),box-shadow .2s,background .2s}.suggestion:hover{border-color:var(--pink-200);background:#fff;transform:translateY(-1px);box-shadow:0 10px 26px #f0699a1a}.suggestion-tag{flex:none;padding:3px 9px;border-radius:7px;background:var(--pink-100);color:var(--pink-strong);font-size:10.5px;font-weight:700;letter-spacing:.04em}.suggestion-text{font-size:13.5px;color:var(--ink-2);line-height:1.5}.msg{display:flex;gap:13px;padding:15px 0;animation:msgIn .3s var(--ease) both}.msg.user{justify-content:flex-end}.msg.user .bubble{max-width:82%;padding:11px 16px;border-radius:18px 18px 5px;background:var(--pink-100);border:1px solid var(--pink-200);font-size:14.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word}.msg.assistant .avatar{width:30px;height:30px;flex:none;border-radius:10px;background:var(--pink-soft);display:grid;place-items:center;margin-top:2px;overflow:hidden}.msg.assistant .avatar img{width:100%;height:100%;object-fit:cover}.msg.assistant .content{flex:1;min-width:0}.assistant-body{font-size:14.5px;line-height:1.78;word-break:break-word}.thinking-card{margin-bottom:12px;border:1px solid var(--line);border-radius:14px;background:var(--paper-2);overflow:hidden}.thinking-head{display:flex;align-items:center;gap:9px;width:100%;padding:10px 13px;font-size:12.5px;color:var(--ink-2);text-align:left;transition:background .16s}.thinking-head:hover{background:#11111408}.thinking-head svg{width:15px;height:15px;color:var(--pink-strong)}.thinking-title{flex:1;font-weight:500}.chev{width:14px;height:14px;color:var(--ink-3);transition:transform .26s var(--ease)}.thinking-card.open .chev{transform:rotate(180deg)}.thinking-collapse{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease)}.thinking-card.open .thinking-collapse{grid-template-rows:1fr}.thinking-collapse>div{overflow:hidden}.thinking-body{padding:0 14px 13px;font-size:13px;line-height:1.72;color:var(--ink-2);white-space:pre-wrap;word-break:break-word;max-height:340px;overflow-y:auto}.live-dots{display:inline-flex;gap:3px;margin-left:2px}.live-dots i{width:4px;height:4px;border-radius:50%;background:var(--pink);animation:dot 1.2s ease-in-out infinite}.live-dots i:nth-child(2){animation-delay:.15s}.live-dots i:nth-child(3){animation-delay:.3s}@keyframes dot{0%,60%,to{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-2px)}}.cursor{display:inline-block;width:7px;height:1.02em;margin-left:2px;vertical-align:-.14em;border-radius:2px;background:var(--pink);animation:blink 1s steps(2,start) infinite}@keyframes blink{50%{opacity:0}}.msg-tools{display:flex;gap:2px;margin-top:8px;opacity:0;transition:opacity .16s}.msg:hover .msg-tools{opacity:1}.tool-btn{display:inline-flex;align-items:center;gap:5px;padding:4px 8px;border-radius:8px;font-size:12px;color:var(--ink-3);transition:background .16s,color .16s}.tool-btn:hover{background:var(--paper-3);color:var(--ink-2)}.tool-btn svg{width:14px;height:14px}.msg-error{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border-radius:12px;background:#fff4f4;border:1px solid #ffe0dd;color:var(--danger);font-size:13px;line-height:1.6}.msg-error button{margin-left:auto;flex:none;padding:4px 10px;border-radius:8px;border:1px solid currentColor;font-size:12px;color:inherit}.composer-wrap{flex:none;padding:8px 24px 16px;width:100%;max-width:780px;margin:0 auto}.composer{border:1px solid var(--line-strong);border-radius:22px;background:#fff;box-shadow:0 6px 24px #1111140d;transition:border-color .2s,box-shadow .2s}.composer:focus-within{border-color:var(--pink);box-shadow:0 0 0 4px var(--pink-soft),0 10px 30px #f0699a1a}.composer-input{padding:14px 18px 4px}.composer textarea{display:block;width:100%;min-height:26px;max-height:200px;padding:0;border:0;outline:none;resize:none;background:transparent;font-size:15px;line-height:1.65}.composer textarea::placeholder{color:var(--ink-3)}.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 10px 10px 14px}.composer-left,.composer-right{display:flex;align-items:center;gap:8px}.pill-btn{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);font-size:12.5px;transition:background .18s,color .18s,border-color .18s}.pill-btn svg{width:14px;height:14px}.pill-btn:hover{background:var(--paper-3)}.pill-btn[aria-pressed=true]{background:var(--pink-soft);border-color:transparent;color:var(--pink-strong)}.hint{font-size:11.5px;color:var(--ink-3);white-space:nowrap}.send-btn{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;transition:background .18s,transform .14s var(--ease)}.send-btn:hover{background:#000}.send-btn:active{transform:scale(.93)}.send-btn:disabled{background:var(--line-strong);color:#fff;opacity:1}.send-btn.stop{background:var(--pink)}.send-btn svg{width:17px;height:17px}.disclaimer{margin:9px 0 0;text-align:center;font-size:11.5px;color:var(--ink-3)}.markdown>*:first-child{margin-top:0}.markdown>*:last-child{margin-bottom:0}.markdown p{margin:0 0 .9em}.markdown h1,.markdown h2,.markdown h3{margin:1.4em 0 .6em;line-height:1.35;font-weight:680;letter-spacing:-.01em}.markdown h1{font-size:1.4em}.markdown h2{font-size:1.23em}.markdown h3{font-size:1.1em}.markdown ul,.markdown ol{margin:0 0 .9em;padding-left:1.45em}.markdown li{margin:.24em 0}.markdown a{color:var(--pink-strong);text-decoration:underline;text-underline-offset:2px}.markdown blockquote{margin:0 0 .9em;padding:2px 0 2px 14px;border-left:3px solid var(--pink-200);color:var(--ink-2)}.markdown hr{border:0;border-top:1px solid var(--line);margin:1.4em 0}.markdown strong{font-weight:680}.markdown :not(pre)>code{padding:2px 6px;border-radius:6px;background:var(--paper-3);border:1px solid var(--line);font-family:var(--font-mono);font-size:.88em}.table-wrap{margin:0 0 1em;overflow-x:auto;border-radius:10px}.markdown table{width:100%;border-collapse:collapse;font-size:13.5px}.markdown th,.markdown td{padding:8px 11px;border:1px solid var(--line);text-align:left}.markdown th{background:var(--paper-2);font-weight:650}.code-block{margin:0 0 1em;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--paper-2)}.code-head{display:flex;align-items:center;justify-content:space-between;padding:7px 11px 7px 13px;border-bottom:1px solid var(--line);font-family:var(--font-mono);font-size:11.5px;color:var(--ink-3)}.code-copy{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:7px;font-size:11.5px;color:var(--ink-3)}.code-copy:hover{background:var(--paper-3);color:var(--ink)}.code-copy svg{width:12px;height:12px}.markdown pre{margin:0;padding:13px 15px;overflow-x:auto;font-family:var(--font-mono);font-size:12.8px;line-height:1.65}.markdown pre code{font-family:inherit;font-size:inherit}.admin-shell{min-height:100dvh;display:flex;background:var(--paper-2)}.admin-side{width:246px;flex:none;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:20px 14px}.admin-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 22px}.admin-brand img{width:34px;height:34px;border-radius:11px;object-fit:cover}.admin-brand strong{display:block;font-size:14px;font-weight:700}.admin-brand span{display:block;font-size:10.5px;color:var(--ink-3);margin-top:2px;letter-spacing:.06em}.admin-nav{display:flex;flex-direction:column;gap:2px}.admin-nav button{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:13.5px;color:var(--ink-2);text-align:left;transition:background .16s,color .16s}.admin-nav button:hover{background:var(--paper-3);color:var(--ink)}.admin-nav button.active{background:var(--pink-100);color:var(--pink-strong);font-weight:600}.admin-nav svg{width:16px;height:16px}.admin-side-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}.admin-main{flex:1;min-width:0;display:flex;flex-direction:column}.admin-top{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;border-bottom:1px solid var(--line);background:#ffffffb3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.admin-top h1{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}.admin-top .sub{font-size:12.5px;color:var(--ink-3)}.admin-body{padding:26px 28px 40px;overflow-y:auto}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.stat-card{padding:20px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}.stat-card .k{font-size:12px;color:var(--ink-3);letter-spacing:.02em}.stat-card .v{margin-top:8px;font-size:28px;font-weight:720;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.stat-card .v small{font-size:13px;font-weight:500;color:var(--ink-3);margin-left:4px}.panel{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow-sm)}.panel h2{margin:0 0 4px;font-size:15.5px;font-weight:700;letter-spacing:-.01em}.panel .panel-sub{margin:0 0 22px;font-size:12.5px;color:var(--ink-3);line-height:1.7}.form-row{margin-bottom:18px}.form-row label{display:block;margin-bottom:7px;font-size:12.5px;font-weight:600;color:var(--ink-2)}.form-row input,.form-row textarea,.form-row select{width:100%;min-height:44px;padding:10px 14px;border-radius:12px;border:1px solid var(--line-strong);background:#fff;font-size:14px;outline:none;transition:border-color .18s,box-shadow .18s}.form-row textarea{min-height:180px;line-height:1.7;resize:vertical;font-family:var(--font-sans)}.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--pink);box-shadow:0 0 0 4px var(--pink-soft)}.form-hint{margin-top:6px;font-size:12px;color:var(--ink-3)}.form-actions{display:flex;gap:10px;align-items:center;margin-top:6px}.table-wrap-admin{margin-top:18px;overflow-x:auto}table.admin-table{width:100%;border-collapse:collapse;font-size:13px}.admin-table th{text-align:left;padding:10px 12px;color:var(--ink-3);font-weight:600;font-size:11.5px;letter-spacing:.04em;border-bottom:1px solid var(--line);white-space:nowrap}.admin-table td{padding:12px;border-bottom:1px solid var(--line);color:var(--ink-2)}.admin-table tr:hover td{background:var(--paper-2)}.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;background:var(--paper-3);color:var(--ink-2)}.badge.pink{background:var(--pink-100);color:var(--pink-strong)}.toast-wrap{position:fixed;left:50%;bottom:28px;transform:translate(-50%);z-index:200;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.toast{padding:10px 18px;border-radius:12px;background:var(--ink);color:#fff;font-size:13px;box-shadow:var(--shadow-md);animation:toastIn .24s var(--ease)}@keyframes toastIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.forbidden{min-height:100dvh;display:grid;place-items:center;padding:24px;background:radial-gradient(700px 420px at 80% 0%,#ffe3ec 0%,transparent 60%),#fff;text-align:center}.forbidden h1{margin:0 0 10px;font-size:64px;font-weight:800;letter-spacing:-.04em}.forbidden p{margin:0 0 26px;color:var(--ink-2);font-size:14px}@keyframes msgIn{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 1080px){.features{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 860px){.home.panel-open .home-nav,.home.panel-open .home-main{padding-right:clamp(20px,5vw,64px)}.login-panel{width:100vw}.chat-side{position:fixed;inset:0 auto 0 0;z-index:70;transform:translate(-100%);transition:transform .3s var(--ease);box-shadow:var(--shadow-lg)}.chat-side.open{transform:none}.chat-top .menu-btn{display:grid}.chat-inner{padding:14px 15px 26px}.composer-wrap{padding:6px 12px 10px}.hint,.admin-side{display:none}.admin-body{padding:18px 16px 30px}.admin-top{padding:0 16px}}@media (max-width: 520px){.hero h1{font-size:36px;letter-spacing:-.03em}.hero p{font-size:15px}.hero-actions .btn{flex:1}.home-nav{padding:16px 18px}.stat-grid{grid-template-columns:1fr}.model-chip{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.chat-shell.zoomed{zoom:1.25;height:80dvh}.chat-side{transition:width .34s var(--ease),transform .3s var(--ease),border-color .3s;overflow:hidden}.chat-side.hidden{width:0;border-right:0;padding-left:0;padding-right:0}.side-brand{display:flex;align-items:center;gap:10px}.side-brand>div{flex:1;min-width:0}.side-brand .collapse-btn{flex:none;width:32px;height:32px}.side-foot{gap:4px;padding:10px 10px 12px}.side-foot .side-link{flex:1;flex-direction:column;justify-content:center;gap:4px;padding:8px 4px;font-size:11.5px;border-radius:10px}.side-spacer{flex:1}.session-group{margin-bottom:2px}.session-group .side-label{padding:12px 8px 5px}.session-item{position:relative}.session-time{flex:none;font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums;opacity:0;transition:opacity .15s}.session-item:hover .session-time,.session-item.active .session-time{opacity:1}.more-btn{opacity:0;flex:none}.session-item:hover .more-btn,.session-item.active .more-btn{opacity:1}.session-rename{flex:1;min-width:0;padding:3px 8px;border:1px solid var(--pink);border-radius:7px;background:#fff;font-size:13px;outline:none}.session-menu{position:absolute;right:8px;top:42px;z-index:40;min-width:156px;padding:6px;border-radius:13px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);animation:popIn .16s var(--ease)}.session-menu button{display:flex;align-items:center;gap:9px;width:100%;padding:9px 11px;border-radius:9px;font-size:13.5px;color:var(--ink-2);text-align:left}.session-menu button:hover{background:var(--paper-3);color:var(--ink)}.session-menu button.danger{color:var(--danger)}.session-menu button.danger:hover{background:#fff0f0}.top-quick{display:flex;align-items:center;gap:2px;padding-right:4px;border-right:1px solid var(--line)}.settings-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:110;background:#180a144d;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px;animation:fadeIn .18s ease}.settings-modal{width:min(540px,100%);max-height:84vh;display:flex;flex-direction:column;background:#fff;border-radius:22px;box-shadow:var(--shadow-lg);animation:modalIn .22s var(--ease);overflow:hidden}.settings-head{display:flex;align-items:flex-start;justify-content:space-between;padding:22px 24px 8px}.settings-head h2{margin:0;font-size:20px;font-weight:720;letter-spacing:-.01em}.settings-head p{margin:5px 0 0;font-size:12.5px;color:var(--ink-3)}.settings-body{padding:4px 24px 24px;overflow-y:auto}.setting-group{padding:16px 0;border-top:1px solid var(--line)}.setting-group:first-child{border-top:0}.setting-group h3{margin:0 0 10px;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}.segmented{display:flex;gap:4px;padding:4px;background:var(--paper-2);border:1px solid var(--line);border-radius:12px}.segmented button{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 6px;border-radius:9px;font-size:13.5px;color:var(--ink-2);transition:background .16s,color .16s,box-shadow .16s}.segmented button:hover{color:var(--ink)}.segmented button.active{background:#fff;color:var(--ink);font-weight:600;box-shadow:var(--shadow-sm)}.switch-row{display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer}.switch-label strong{display:block;font-size:14px;font-weight:600}.switch-label small{display:block;margin-top:3px;font-size:12.5px;color:var(--ink-3);line-height:1.5}.switch{-webkit-appearance:none;-moz-appearance:none;appearance:none;flex:none;width:46px;height:26px;border-radius:999px;background:var(--line-strong);position:relative;cursor:pointer;transition:background .18s}.switch:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0003;transition:transform .18s var(--ease)}.switch:checked{background:var(--pink)}.switch:checked:after{transform:translate(20px)}.data-row{display:flex;gap:10px;flex-wrap:wrap}.ghost-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 15px;border:1px solid var(--line-strong);border-radius:10px;font-size:13.5px;color:var(--ink-2);transition:background .16s,color .16s}.ghost-btn:hover{background:var(--paper-3);color:var(--ink)}.danger-btn{padding:9px 15px;border-radius:10px;background:#fff0f0;color:var(--danger);font-size:13.5px;transition:filter .16s}.danger-btn:hover{filter:brightness(.97)}.setting-group.about p{margin:0 0 6px;font-size:12.5px;color:var(--ink-2)}.composer-input{padding:16px 20px 6px}.composer textarea{font-size:16px;min-height:34px}.composer-bar{padding:8px 12px 12px 16px}.login-panel{width:min(520px,100vw)}.login-head{padding:34px 36px 0}.login-head h2{font-size:30px}.login-head p{font-size:15px;margin-top:10px}.login-body{padding:30px 36px 34px}.field label{font-size:14px;margin-bottom:10px}.field input{height:58px;font-size:16.5px;border-radius:16px;padding:0 18px}.login-meta{font-size:13.5px}.login-msg{font-size:14px}.login-note{font-size:14px;padding:18px 20px}.login-foot{padding:20px 36px 30px;font-size:13px}@media (max-width: 860px){.chat-shell.zoomed{zoom:1;height:100dvh}.login-panel{width:100vw}.settings-modal{width:100%}}[data-theme=dark]{--ink: #f2f2f4;--ink-2: #a8a8b2;--ink-3: #75757f;--line: #2a2b2f;--line-strong: #3b3c42;--paper: #17181a;--paper-2: #1d1e21;--paper-3: #242529;--pink: #ff7fae;--pink-strong: #ff96bd;--pink-soft: rgba(255, 127, 174, .16);--pink-100: #261a20;--pink-200: #3a2531;--danger: #ff8a7a;color-scheme:dark}[data-theme=dark] body{background:var(--paper);color:var(--ink)}[data-theme=dark] .home{background:radial-gradient(1000px 560px at 88% -12%,#2a1a22,#2a1a2200 62%),radial-gradient(820px 480px at 2% 4%,#221a1f,#221a1f00 58%),#17181a}[data-theme=dark] .chat-shell,[data-theme=dark] .chat-main,[data-theme=dark] .admin-shell{background:#17181a}[data-theme=dark] .chat-side,[data-theme=dark] .admin-side{background:#1b1c1f;border-color:var(--line)}[data-theme=dark] .new-chat-btn,[data-theme=dark] .composer,[data-theme=dark] .session-item.active,[data-theme=dark] .session-menu,[data-theme=dark] .settings-modal,[data-theme=dark] .field input,[data-theme=dark] .user-chip,[data-theme=dark] .segmented button.active,[data-theme=dark] .panel,[data-theme=dark] .stat-card,[data-theme=dark] .admin-top{background:#202124;border-color:var(--line);box-shadow:none}[data-theme=dark] .login-panel{background:linear-gradient(180deg,#1f2023,#17181a);border-left-color:var(--line)}[data-theme=dark] .login-note{background:#241a20;border-color:#3a2531}[data-theme=dark] .settings-backdrop{background:#0000008c}[data-theme=dark] .panel-backdrop{background:#0006}[data-theme=dark] .btn-dark{background:#f2f2f4;color:#17181a}[data-theme=dark] .btn-dark:hover{background:#fff}[data-theme=dark] .send-btn{background:#f2f2f4;color:#17181a}[data-theme=dark] .send-btn.stop{background:var(--pink);color:#1a1013}[data-theme=dark] .suggestion{background:#ffffff0b;border-color:var(--line)}[data-theme=dark] .suggestion:hover{background:#232428;border-color:var(--line-strong)}[data-theme=dark] .feature{background:#ffffff0a;border-color:var(--line)}[data-theme=dark] .msg.user .bubble{background:#241a20;border-color:#3a2531}[data-theme=dark] .thinking-card{background:#1d1e21;border-color:var(--line)}[data-theme=dark] .msg-error{background:#2a1a1a;border-color:#4a2a2a}[data-theme=dark] .markdown th{background:#202124}[data-theme=dark] .code-block{background:#1d1e21}[data-theme=dark] .segmented{background:#1b1c1f}[data-theme=dark] .version-chip{background:#ffffff0d;border-color:var(--line)}[data-theme=dark] .danger-btn{background:#2a1a1a;color:#ff8a7a}[data-theme=dark] .login-msg{background:#2a1a1a;border-color:#4a2a2a}[data-theme=dark] .toast{background:#f2f2f4;color:#17181a}[data-theme=dark] .admin-table tbody tr:hover td{background:#202124}.app-icon{border-radius:26%!important;box-shadow:0 0 0 3px var(--ink);background:#fff;object-fit:cover;box-sizing:border-box}[data-theme=dark] .app-icon{background:#f7f7f8}.chat-side{width:250px;min-width:250px;padding:0;overflow:hidden}.chat-side.hidden{width:0;min-width:0;border-right:0}.side-inner{width:250px;min-width:250px;height:100%;display:flex;flex-direction:column;overflow:hidden}.side-head{padding:18px 14px 10px}.side-list{padding:4px 10px 12px}.session-title{color:var(--ink);font-weight:500}.session-item{color:var(--ink-2)}.session-item:hover .session-title,.session-item.active .session-title{color:var(--ink)}.welcome-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px 90px;text-align:center;animation:fadeIn .32s var(--ease) both}.welcome-logo{width:78px;height:78px;border-radius:26%!important;box-shadow:0 0 0 4px var(--ink);background:#fff}.welcome-stage h1{margin:26px 0 10px;font-size:30px;font-weight:720;letter-spacing:-.02em}.welcome-stage .welcome-sub{margin:0 0 34px;font-size:14.5px;color:var(--ink-2)}.welcome-composer{width:100%;max-width:720px}.chat-top .collapse-toggle{display:none!important}html[data-font=sm]{--chat-zoom: 1.15}html[data-font=md]{--chat-zoom: 1.25}html[data-font=lg]{--chat-zoom: 1.4}.chat-shell.zoomed{zoom:var(--chat-zoom, 1.25);height:calc(100dvh / var(--chat-zoom, 1.25))}@media (max-width: 860px){.chat-shell.zoomed{zoom:1;height:100dvh}}.app-icon{border:2px solid var(--ink)!important;border-radius:24%!important;background:#fff;box-shadow:none!important;object-fit:cover;box-sizing:border-box}[data-theme=dark] .app-icon{background:#17181a}.welcome-logo{box-shadow:none!important;border:3px solid var(--ink)!important;border-radius:24%!important;background:#fff}[data-theme=dark] .welcome-logo{background:#17181a}.chat-inner,.composer-wrap{max-width:940px}.welcome-composer{max-width:820px}.user-block{display:flex;flex-direction:column;align-items:flex-end;max-width:84%}.msg-time{margin-top:6px;font-size:11.5px;color:var(--ink-3);opacity:0;transition:opacity .18s;font-variant-numeric:tabular-nums}.msg.user:hover .msg-time{opacity:1}.session-item{gap:8px}.session-title{flex:1}.session-menu-fixed{position:fixed;z-index:500;min-width:158px;padding:6px;border-radius:13px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);animation:popIn .16s var(--ease)}[data-theme=dark] .session-menu-fixed{background:#202124}.session-menu-fixed button{display:flex;align-items:center;gap:9px;width:100%;padding:9px 11px;border-radius:9px;font-size:13.5px;color:var(--ink-2);text-align:left}.session-menu-fixed button:hover{background:var(--paper-3);color:var(--ink)}.session-menu-fixed button.danger{color:var(--danger)}.session-menu-fixed button.danger:hover{background:#fff0f0}[data-theme=dark] .session-menu-fixed button.danger:hover{background:#2a1a1a}.user-block{max-width:84%}.msg.user .bubble{max-width:100%}.pin-mark{color:var(--pink);opacity:.9}.msg.assistant .avatar .app-icon{border:0!important;box-shadow:none!important;border-radius:24%!important}.link-btn{color:var(--pink-strong);font-size:inherit;font-weight:600;padding:0 2px;text-decoration:underline;text-underline-offset:3px}.link-btn:hover{color:var(--pink)}.login-meta-row{display:flex;align-items:center;justify-content:space-between}.field-hint{margin-top:7px;font-size:12px;color:var(--ink-3);line-height:1.6}.captcha-row{display:flex;gap:10px;align-items:stretch}.captcha-row input{flex:1}.captcha-img{width:138px;height:58px;flex:none;border-radius:14px;border:1px solid var(--line-strong);background:#fff;overflow:hidden;display:grid;place-items:center;font-size:12px;color:var(--ink-3)}.captcha-img img{width:100%;height:100%;object-fit:cover;display:block}.code-row{display:flex;gap:10px;align-items:stretch}.code-row input{flex:1}.code-btn{flex:none;padding:0 16px;height:58px;border-radius:14px;border:1px solid var(--line-strong);background:var(--paper-2);color:var(--ink);font-size:13.5px;font-weight:600;white-space:nowrap;transition:background .16s,border-color .16s}.code-btn:hover:not(:disabled){background:var(--pink-100);border-color:var(--pink-200)}.code-btn:disabled{color:var(--ink-3);cursor:not-allowed}.agree-row{display:flex;align-items:flex-start;gap:9px;margin:4px 0 18px;font-size:12.5px;line-height:1.7;color:var(--ink-2);cursor:pointer}.agree-row input{margin-top:3px;width:16px;height:16px;accent-color:var(--pink);flex:none}.mode-switch{margin-top:18px;text-align:center;font-size:13px;color:var(--ink-3)}.login-register{margin-top:20px}.login-info{margin:0 0 16px;padding:11px 14px;border-radius:12px;font-size:13px;line-height:1.6;background:#f0faf6;color:#1f7a5c;border:1px solid #cdeee2;animation:rise .25s var(--ease)}[data-theme=dark] .login-info{background:#17251f;color:#6fd3ad;border-color:#244034}.legal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:130;background:#180a1466;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px;animation:fadeIn .18s ease}.legal-modal{width:min(640px,100%);max-height:84vh;display:flex;flex-direction:column;background:#fff;border-radius:22px;box-shadow:var(--shadow-lg);animation:modalIn .22s var(--ease);overflow:hidden}[data-theme=dark] .legal-modal{background:#1c1d20}.legal-head{display:flex;align-items:flex-start;justify-content:space-between;padding:22px 26px 10px;border-bottom:1px solid var(--line)}.legal-head h2{margin:0;font-size:20px;font-weight:720}.legal-head p{margin:5px 0 0;font-size:12px;color:var(--ink-3)}.legal-body{padding:18px 26px 8px;overflow-y:auto}.legal-body section{margin-bottom:18px}.legal-body h3{margin:0 0 6px;font-size:14px;font-weight:700}.legal-body p{margin:0;font-size:13px;line-height:1.85;color:var(--ink-2)}.legal-foot{padding:12px 26px 20px;display:flex;justify-content:flex-end;border-top:1px solid var(--line)}.dev-banner{flex:none;padding:9px 20px;text-align:center;font-size:12.5px;line-height:1.6;color:#a8506f;background:linear-gradient(90deg,#fff1f6,#fff7fa,#fff1f6);border-bottom:1px solid #f7dde8}[data-theme=dark] .dev-banner{color:#ff9dbb;background:linear-gradient(90deg,#2a1a20,#241a1e,#2a1a20);border-bottom-color:#3a2531}.composer.disabled{opacity:.72}.composer textarea:disabled{color:var(--ink-3);cursor:not-allowed}.sources{margin-top:12px}.sources-label{font-size:11.5px;color:var(--ink-3);margin-bottom:7px}.source-list{display:flex;flex-wrap:wrap;gap:7px}.source-chip{max-width:100%;padding:5px 11px;border-radius:8px;font-size:11.5px;line-height:1.4;text-align:left;color:var(--pink-strong);background:var(--pink-100);border:1px solid var(--pink-200);transition:background .16s,border-color .16s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.source-chip:hover{background:var(--pink-soft);border-color:var(--pink)}[data-theme=dark] .source-chip{color:#ff9dbb;background:#261a20;border-color:#3a2531}