:root{--primary: #7c6cf5;--primary-dark: #5b4bd6;--pink: #ff6fa8;--bg: #f4f3fb;--card: #ffffff;--ink: #22243a;--ink-soft: #6b6f87;--line: #e8e7f2;--shadow: 0 8px 28px rgba(60, 50, 120, .12);--radius: 16px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.55;overscroll-behavior:none}#root{height:100dvh}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}textarea,input{font-family:inherit;font-size:15px}.home{height:100dvh;overflow-y:auto;padding:20px 16px 110px}.home-inner{max-width:640px;margin:0 auto}.hero{text-align:center;padding:14px 0 18px}.hero .logo{font-size:40px}.hero h1{margin:6px 0 4px;font-size:24px;letter-spacing:1px;background:linear-gradient(90deg,var(--primary),var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{margin:0;color:var(--ink-soft);font-size:13px}.section-title{margin:22px 2px 10px;font-size:14px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:6px}.section-title .hint{font-weight:400;color:var(--ink-soft);font-size:12px}.mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.mode-tab{background:var(--card);border:2px solid transparent;border-radius:var(--radius);padding:12px 8px;text-align:center;box-shadow:var(--shadow);transition:transform .12s;display:flex;flex-direction:column;align-items:center;gap:2px}.mode-tab:active{transform:scale(.97)}.mode-tab.active{border-color:var(--primary);background:#f0eefe}.mode-tab .m-emoji{font-size:22px;display:block;margin-bottom:4px}.mode-tab .m-name{font-weight:700;font-size:14px;display:block}.mode-tab .m-desc{font-size:11px;color:var(--ink-soft);line-height:1.35;display:block}.char-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.char-card{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);padding:10px 12px;display:flex;gap:10px;align-items:center;text-align:left;box-shadow:0 2px 10px #3c32780f}.char-card.active{border-color:var(--primary);background:#f7f6ff}.char-card .avatar{flex:none}.char-card .c-body{display:flex;flex-direction:column;min-width:0}.char-card .c-name{font-weight:700;font-size:15px;display:flex;align-items:center;gap:6px}.char-card .c-role{font-size:12px;color:var(--ink-soft)}.tier-badge{font-size:10px;font-weight:800;background:var(--primary);color:#fff;border-radius:6px;padding:0 5px;line-height:16px}.tier-badge.S{background:linear-gradient(135deg,#ff6fa8,#ff9f43)}.char-card .c-trait{font-size:11.5px;color:var(--ink-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:1px}.char-card .check{margin-left:auto;width:20px;height:20px;border-radius:50%;border:2px solid var(--line);flex:none;display:grid;place-items:center;font-size:12px;color:#fff}.char-card.active .check{background:var(--primary);border-color:var(--primary)}.scene-list{display:flex;flex-direction:column;gap:8px}.scene-item{background:var(--card);border:2px solid var(--line);border-radius:12px;padding:10px 12px;text-align:left;width:100%}.scene-item.active{border-color:var(--primary);background:#f7f6ff}.scene-item .s-title{font-weight:700;font-size:14px}.scene-item .s-preview{font-size:12px;color:var(--ink-soft);margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.custom-scene{width:100%;margin-top:8px;border:2px solid var(--line);border-radius:12px;padding:10px 12px;resize:vertical;min-height:64px;background:var(--card);color:var(--ink)}.custom-scene:focus{outline:none;border-color:var(--primary)}.start-bar{position:fixed;left:0;right:0;bottom:0;padding:10px 16px calc(12px + env(safe-area-inset-bottom));background:linear-gradient(180deg,rgba(244,243,251,0),var(--bg) 30%)}.btn-primary{display:block;width:100%;max-width:640px;margin:0 auto;background:linear-gradient(135deg,var(--primary),#8b7bff);color:#fff;font-size:16px;font-weight:700;padding:13px;border-radius:999px;box-shadow:0 10px 24px #7c6cf566;transition:transform .12s,opacity .12s}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{opacity:.45;box-shadow:none}.foot-settings{text-align:center;margin-top:18px}.foot-settings button{color:var(--ink-soft);font-size:12.5px;text-decoration:underline}.room{height:100dvh;display:flex;flex-direction:column;max-width:760px;margin:0 auto;background:var(--bg)}.room-header{flex:none;background:var(--card);border-bottom:1px solid var(--line);padding:8px 10px;display:flex;align-items:center;gap:8px;box-shadow:0 2px 8px #3c32780d;z-index:5}.icon-btn{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:17px;color:var(--ink);flex:none}.icon-btn:active{background:var(--line)}.icon-btn:disabled{opacity:.4}.room-title{flex:1;min-width:0}.room-title .rt-mode{font-size:12px;color:var(--primary);font-weight:700}.room-title .rt-names{font-size:13px;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-title .rt-avatars{display:none}.btn-stop{background:#ffe8ef;color:#e23d73;font-weight:700;font-size:13px;border-radius:999px;padding:8px 14px;flex:none}.messages{flex:1;overflow-y:auto;padding:14px 12px 8px;display:flex;flex-direction:column;gap:12px;scroll-behavior:smooth}.note{align-self:center;max-width:92%;text-align:center;font-size:12px;color:var(--ink-soft);background:#7c6cf514;border-radius:999px;padding:5px 14px}.note.warn{background:#fff0f0;color:#d44}.msg{display:flex;gap:8px;max-width:86%;animation:pop .18s ease}@keyframes pop{0%{opacity:0;transform:translateY(6px)}}.msg.user{align-self:flex-end;flex-direction:row-reverse}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:19px;color:#fff;flex:none;box-shadow:inset 0 -2px 4px #00000014}.bubble{background:var(--card);border-radius:4px 16px 16px;padding:8px 12px;box-shadow:0 2px 8px #3c327812;word-break:break-word;white-space:pre-wrap}.msg.user .bubble{background:linear-gradient(135deg,var(--primary),#8b7bff);color:#fff;border-radius:16px 4px 16px 16px}.bubble .b-name{font-size:12px;font-weight:800;margin-bottom:2px}.bubble .b-action{font-size:12px;color:var(--ink-soft);font-style:italic;margin-bottom:2px}.msg.crowd .bubble{background:#eef0f4}.typing{align-self:flex-start;display:flex;gap:4px;background:var(--card);border-radius:16px;padding:12px 14px;box-shadow:0 2px 8px #3c327812}.typing span{width:7px;height:7px;border-radius:50%;background:var(--ink-soft);opacity:.4;animation:blink 1.1s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25}30%{opacity:1}}.composer{flex:none;background:var(--card);border-top:1px solid var(--line);padding:8px 10px calc(8px + env(safe-area-inset-bottom));display:flex;gap:8px;align-items:flex-end}.composer textarea{flex:1;border:none;background:var(--bg);border-radius:20px;padding:10px 14px;resize:none;max-height:110px;min-height:40px;line-height:1.4}.composer textarea:focus{outline:2px solid rgba(124,108,245,.35)}.btn-send{flex:none;width:42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;font-size:18px;display:grid;place-items:center}.btn-send:disabled{opacity:.4}.btn-watch{flex:none;background:linear-gradient(135deg,var(--pink),#ff9f43);color:#fff;font-weight:700;font-size:14px;border-radius:999px;padding:10px 16px;white-space:nowrap}.composer-hint{position:absolute}.modal-mask{position:fixed;inset:0;background:#1e1c3c73;display:flex;align-items:flex-end;justify-content:center;z-index:50}@media (min-width: 640px){.modal-mask{align-items:center}}.modal{background:var(--card);width:100%;max-width:520px;border-radius:20px 20px 0 0;padding:18px 18px calc(20px + env(safe-area-inset-bottom));max-height:88dvh;overflow-y:auto}@media (min-width: 640px){.modal{border-radius:20px}}.modal h3{margin:0 0 4px;font-size:17px}.modal .m-sub{color:var(--ink-soft);font-size:12.5px;margin-bottom:14px}.field{margin-bottom:12px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:5px}.field input{width:100%;border:2px solid var(--line);border-radius:10px;padding:9px 11px;background:#fafaff}.field input:focus{outline:none;border-color:var(--primary)}.radio-row{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.radio-row label{display:flex;gap:8px;align-items:flex-start;background:#fafaff;border:2px solid var(--line);border-radius:12px;padding:9px 11px;font-size:13.5px;font-weight:400}.radio-row label:has(input:checked){border-color:var(--primary);background:#f4f2ff}.radio-row small{color:var(--ink-soft);display:block;font-size:11.5px;margin-top:2px}.backend-badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;border-radius:999px;padding:3px 10px;margin-bottom:12px}.backend-badge.cloud{background:#e6fbf1;color:#0a9b6c}.backend-badge.demo{background:#fff4e0;color:#b56b00}.backend-badge.byok{background:#e9f1ff;color:#2b6fe0}.modal-actions{display:flex;gap:10px;margin-top:8px}.btn-ghost{flex:1;border:2px solid var(--line);border-radius:999px;padding:11px;font-weight:700;font-size:14px}.btn-solid{flex:2;background:var(--primary);color:#fff;border-radius:999px;padding:11px;font-weight:700;font-size:14px}.switch-row{display:flex;gap:8px;align-items:center;font-size:13px;margin:6px 0 2px}