:root{--bg: #f7f7fc;--surface: #ffffff;--surface-2: #f1f1fa;--line: #e8e8f3;--text: #16172b;--muted: #6e7191;--accent: #6c5ce7;--accent-2: #8b7cfa;--accent-soft: #eeebff;--live: #ff6161;--shadow: 0 20px 50px -28px rgba(31, 28, 74, .35);--topbar-h: 72px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}html,body,#app{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}.shell{min-height:100%;display:flex;flex-direction:column;overflow-x:clip}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 12px 9px 26px;border:1px solid var(--line);border-radius:999px;background:#ffffffeb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 18px 40px -22px #1f1c4a47;position:sticky;top:16px;z-index:20;width:calc(100% - 48px);max-width:1180px;margin:16px auto 0}.brand{display:inline-flex;align-items:center;text-decoration:none;color:var(--text);flex-shrink:0;font-weight:800;font-size:20px;letter-spacing:-.03em;line-height:1;padding:6px 0}.nav{display:flex;align-items:center;gap:4px}.nav a{color:var(--muted);font-size:14px;font-weight:500;text-decoration:none;padding:8px 12px;border-radius:8px;transition:color .15s ease,background .15s ease}.nav a:hover{color:var(--text);background:var(--surface-2)}.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.page{width:100%;max-width:1180px;margin:0 auto;padding:32px 24px 56px;flex:1}.list-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:28px}.list-title{font-size:30px;font-weight:800;letter-spacing:-.03em;margin:0 0 6px}.list-sub{color:var(--muted);margin:0;font-size:14px;max-width:58ch}.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:16px}.list-actions{display:flex;gap:10px;flex-wrap:wrap}.list-actions .ant-input-affix-wrapper{width:220px}.room-card{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:18px;display:flex;flex-direction:column;gap:12px;box-shadow:0 1px 2px #14142d0a;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}.room-card:hover{border-color:#d9d5fb;box-shadow:var(--shadow);transform:translateY(-2px)}.room-card h3{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}.room-card .topic{color:var(--muted);font-size:13px;margin:0;min-height:18px}.room-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;margin-top:auto}.room-shell{display:grid;grid-template-columns:1fr 260px;gap:18px;height:calc(100dvh - var(--topbar-h) - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px));padding:16px 24px 20px;width:100%;max-width:1180px;margin:0 auto}.room-main{display:flex;flex-direction:column;gap:14px;min-height:0}.room-head{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:12px 16px}.room-head h2{margin:0;font-size:18px;font-weight:700;letter-spacing:-.01em}.stage{border:1px solid var(--line);background:#0b0d12;border-radius:14px;padding:12px}.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.tile{position:relative;aspect-ratio:4 / 3;background:#14171e;border-radius:12px;overflow:hidden;border:1px solid #262b35}.tile video{width:100%;height:100%;object-fit:cover;display:block;background:#14171e}.tile .avatar-fill{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center}.tile .tag{position:absolute;left:8px;bottom:8px;background:#0a0c10b8;color:#f2f2f8;border-radius:7px;padding:3px 8px;font-size:12px;display:flex;align-items:center;gap:6px}.tile.speaking{border-color:var(--accent)}.tile .sound-btn{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;width:max-content;height:38px;padding:0 16px;border:none;border-radius:999px;background:var(--accent);color:#fff;font:inherit;font-weight:600;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:8px;z-index:2}.chat{flex:1;min-height:0;display:flex;flex-direction:column;border:1px solid var(--line);background:var(--surface);border-radius:14px;overflow:hidden}.chat-log{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:14px}.chat-empty{margin:auto;text-align:center;color:var(--muted);font-size:14px}.msg{display:flex;gap:10px;max-width:76%}.msg-body{background:var(--surface-2);border-radius:12px;padding:9px 13px}.msg-name{font-size:12px;font-weight:600;margin-bottom:2px}.msg-text{font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word}.msg-time{font-size:11px;color:var(--muted);margin-top:3px}.msg.mine{margin-left:auto;flex-direction:row-reverse}.msg.mine .msg-body{background:var(--accent-soft)}.msg.mine .msg-time{text-align:right}.msg.system{max-width:100%;justify-content:center}.msg.system .msg-body{background:transparent;color:var(--muted);font-size:12px;padding:2px 0}.composer{border-top:1px solid var(--line);padding:12px;display:flex;gap:10px;align-items:flex-end}.people{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:16px;overflow-y:auto}.people h4{margin:0 0 12px;font-size:13px;color:var(--muted);font-weight:600}.person{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px}.person .state{margin-left:auto;font-size:11px;color:var(--muted)}.dot-live{width:7px;height:7px;border-radius:50%;background:var(--live);display:inline-block}.user-chip{display:flex;align-items:center;gap:9px;background:transparent;border:1px solid var(--line);border-radius:999px;padding:4px 12px 4px 4px;color:var(--text);cursor:pointer;font:inherit;font-size:13px}.user-chip:hover{border-color:#d1cef7;background:var(--surface-2)}.hero-alt{max-width:860px;margin:0 auto;padding:96px 24px 64px;display:flex;flex-direction:column;align-items:center;text-align:center;position:relative}.hero-alt:before{content:"";position:absolute;top:-60px;left:50%;width:min(900px,100vw);height:480px;background:radial-gradient(closest-side,rgba(108,92,231,.12),transparent 72%);transform:translate(-50%);z-index:-1;pointer-events:none}.hero-badge{display:inline-flex;align-items:center;gap:7px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600;padding:7px 15px;border-radius:999px;margin-bottom:26px}.hero-alt h1{font-size:clamp(34px,5.6vw,56px);line-height:1.08;letter-spacing:-.035em;font-weight:800;margin:0 0 20px;color:var(--text)}.hero-alt h1 .accent-text{color:var(--accent)}.hero-lead{color:var(--muted);font-size:17px;line-height:1.7;max-width:54ch;margin:0 0 40px}.search-bar{display:flex;align-items:center;width:100%;max-width:640px;background:var(--surface);border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);padding:6px 6px 6px 20px}.search-field{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.search-field input,.search-field select{border:none;outline:none;background:transparent;font:inherit;font-size:14px;color:var(--text);width:100%;padding:10px 4px;-moz-appearance:none;appearance:none;-webkit-appearance:none}.search-field input::placeholder{color:#a6a8c6}.search-icon{color:var(--muted);font-size:15px;display:flex;flex-shrink:0}.search-divider{width:1px;height:26px;background:var(--line);margin:0 12px;flex-shrink:0}.search-btn{border-radius:999px!important;height:44px!important;padding:0 26px!important;font-weight:600!important;flex-shrink:0}@media(max-width:620px){.search-bar{flex-direction:column;align-items:stretch;border-radius:22px;padding:14px;gap:12px}.search-divider{display:none}.search-field{padding:2px 4px}.search-btn{width:100%}}.section-pad{max-width:1080px;margin:0 auto;padding:0 24px}.section-eyebrow{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px;text-align:center}.section-title{font-size:30px;font-weight:800;letter-spacing:-.03em;margin:0 0 40px;text-align:center}.category-section{margin-top:88px}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}.category-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px 18px;display:flex;flex-direction:column;align-items:center;gap:12px;cursor:pointer;text-align:center;font:inherit;color:inherit;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d9d5fb}.category-icon{width:52px;height:52px;border-radius:14px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:20px;flex-shrink:0}.category-card h4{margin:0;font-size:14.5px;font-weight:700}.category-card p{margin:0;font-size:12.5px;color:var(--muted);line-height:1.5}.features{max-width:1080px;margin:88px auto 0;padding:0 24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.feature{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:22px}.feature-icon{width:38px;height:38px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:17px}.feature h3{font-size:16px;font-weight:700;margin:14px 0 6px;letter-spacing:-.01em}.feature p{color:var(--muted);font-size:14px;line-height:1.6;margin:0}.steps{max-width:1080px;margin:96px auto 0;padding:0 24px}.steps ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.steps li{display:flex;gap:14px}.step-no{width:32px;height:32px;flex-shrink:0;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:13px;font-weight:700}.steps h4{margin:4px 0 6px;font-size:15px;font-weight:700}.steps p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}.faq-section{max-width:720px;margin:96px auto 0;padding:0 24px}.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--surface);margin-bottom:12px;overflow:hidden}.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;background:none;border:none;cursor:pointer;font:inherit;font-size:15px;font-weight:600;color:var(--text);text-align:left}.faq-q .anticon{color:var(--muted);transition:transform .2s ease;flex-shrink:0}.faq-item.open .faq-q .anticon{transform:rotate(180deg);color:var(--accent)}.faq-a{padding:0 20px 18px;color:var(--muted);font-size:14px;line-height:1.7;margin:0}.cta{max-width:1080px;margin:96px auto 72px;padding:52px 24px;border:1px solid var(--line);border-radius:22px;background:radial-gradient(120% 140% at 50% 0%,var(--accent-soft) 0%,var(--surface) 62%);text-align:center}.cta h2{font-size:26px;font-weight:800;letter-spacing:-.025em;margin:0 0 20px}.site-foot{border-top:1px solid var(--line);padding:22px 24px;color:var(--muted);font-size:13px;text-align:center}@media(max-width:900px){.nav{display:none}.hero-alt{padding:64px 20px 48px}.category-section,.features,.steps,.faq-section,.cta{margin-top:64px}}.auth{min-height:100dvh;display:grid;grid-template-columns:1fr 1fr}.auth-form{display:flex;flex-direction:column;justify-content:center;padding:48px clamp(24px,6vw,86px);max-width:560px;width:100%;margin-left:auto}.auth-form h1{font-size:28px;font-weight:800;letter-spacing:-.025em;margin:0 0 8px}.auth-sub{color:var(--muted);font-size:14px;margin:0}.auth-switch{margin:22px 0 0;font-size:14px;color:var(--muted)}.auth-switch a{color:var(--accent);font-weight:600}.auth-aside{border-left:1px solid var(--line);background:radial-gradient(100% 90% at 20% 10%,var(--accent-soft) 0%,var(--bg) 60%);display:flex;align-items:center;padding:48px clamp(24px,5vw,72px)}.aside-inner{max-width:40ch}.aside-inner h2{font-size:24px;font-weight:800;letter-spacing:-.025em;margin:0 0 12px}.aside-inner p{color:var(--muted);font-size:15px;line-height:1.7;margin:0}@media(max-width:860px){.auth{grid-template-columns:1fr}.auth-aside{display:none}.auth-form{margin:0 auto}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#dcdcee;border-radius:8px;border:3px solid transparent;background-clip:content-box}@media(max-width:900px){.room-shell{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:10px;padding:10px 12px 12px}.people{order:-1;display:flex;align-items:center;gap:8px;overflow-x:auto;overflow-y:hidden;padding:8px 10px;border-radius:12px;white-space:nowrap}.people h4{display:none}.people>p,.people>.ant-tag{display:none}.person{flex-shrink:0;padding:4px 10px 4px 4px;gap:7px;font-size:13px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2)}.person .state{margin-left:2px}.stage{max-height:42dvh;overflow-y:auto;padding:8px}.tiles{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px}}@media(max-width:640px){:root{--topbar-h: 62px}.topbar{width:calc(100% - 24px);margin-top:10px;top:10px;padding:6px 8px 6px 18px;gap:8px}.brand{font-size:18px}.nav-actions{gap:4px}.nav-actions .ant-btn{padding-inline:12px;white-space:nowrap}.user-chip{padding-right:8px}.user-chip .user-name{display:none}.page{padding:20px 14px 40px}.list-head{gap:14px;margin-bottom:20px}.list-title{font-size:24px}.list-actions{width:100%;flex-wrap:nowrap}.list-actions .ant-input-affix-wrapper{flex:1;width:auto;min-width:0}.hero-alt{padding:40px 16px 36px}.hero-badge{font-size:12px;margin-bottom:20px}.hero-lead{font-size:15px;margin-bottom:28px}.hero-alt h1 br{display:none}.section-pad,.features,.steps,.faq-section{padding-left:16px;padding-right:16px}.section-title{font-size:24px;margin-bottom:28px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.category-card{padding:20px 12px}.cta{margin:64px 16px 48px;padding:36px 16px}.cta h2{font-size:22px}.room-head{padding:10px 12px;gap:10px}.room-head h2{font-size:16px}.room-actions{width:100%}.room-actions .ant-space-item:only-child,.room-actions .ant-space-item:last-child{flex:1}.room-actions .ant-btn{width:100%}.room-actions .ant-space-item{flex:1}.chat-log{padding:12px;gap:12px}.msg{max-width:90%}.composer{padding:8px;gap:8px}.auth-form{padding:28px 20px 40px;justify-content:flex-start}.auth-form h1{font-size:24px}.ant-input,.ant-input-affix-wrapper input,textarea.ant-input,.search-field input,.search-field select{font-size:16px!important}}.admin-pill{display:inline-flex;align-items:center;gap:4px;vertical-align:middle;background:#fff4e6;color:#c96a14;border:1px solid #ffd8a8;border-radius:999px;padding:0 8px;font-size:11px;font-weight:700;line-height:18px;white-space:nowrap;letter-spacing:0}.admin-pill .anticon{font-size:11px;color:#f2994a}.person .kick{margin-left:auto;flex-shrink:0}.person .state+.kick{margin-left:4px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:18px}.stat{display:flex;flex-direction:column;gap:4px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:16px}.stat-label{color:var(--muted);font-size:12.5px;font-weight:600}.stat-value{font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1.1}.stat-value.danger{color:var(--live)}.stat-value.live{color:var(--accent)}.stat-hint{color:var(--muted);font-size:12px;line-height:1.45}.dash-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:18px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px;min-width:0}.panel-wide{margin-bottom:18px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.panel-head h3{margin:0;font-size:15px;font-weight:700;letter-spacing:-.01em}.muted-note{color:var(--muted);font-size:12.5px;margin:0}.bars{display:flex;align-items:stretch;gap:6px;height:150px}.bar-col{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:4px}.bar-val{font-size:10.5px;color:var(--muted);height:14px;line-height:14px}.bar-track{flex:1;width:100%;display:flex;align-items:flex-end}.bar{width:100%;background:linear-gradient(180deg,var(--accent-2),var(--accent));border-radius:6px 6px 2px 2px}.bar-lbl{font-size:10.5px;color:var(--muted);height:14px;line-height:14px}.bars-foot{margin-top:10px;color:var(--muted);font-size:12px}.rank{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.rank-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px}.rank-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-flex;align-items:center;gap:8px}.rank-count{color:var(--muted);font-size:12.5px;flex-shrink:0;display:inline-flex;align-items:center;gap:5px}.rank-bar{height:6px;border-radius:99px;background:var(--surface-2);margin-top:6px;overflow:hidden}.rank-bar span{display:block;height:100%;background:var(--accent);border-radius:99px}.cell-user{display:inline-flex;align-items:center;gap:10px;min-width:0}.recent{list-style:none;margin:0;padding:0}.recent li{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}.recent li:last-child{border-bottom:none}@media(max-width:900px){.dash-grid{grid-template-columns:minmax(0,1fr)}}@media(max-width:640px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat{padding:14px}.stat-value{font-size:24px}.panel{padding:14px}.bars{gap:3px}}