:root{--bg: #f5f7fa;--panel: #ffffff;--line: #e2e6eb;--text: #1f2329;--text-dim: #86909c;--primary: #0052d9;--primary-hover: #1456f0;--danger: #e5484d;--bar-bg: #1c2126;--bar-text: #d5d7da;--radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.btn{border:1px solid transparent;border-radius:var(--radius);padding:8px 20px;font-size:14px;transition:background .15s,color .15s,border-color .15s}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-hover)}.btn.ghost{background:transparent;border-color:var(--line);color:var(--text)}.btn.ghost:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.btn.danger{background:var(--danger);color:#fff}.btn.small{padding:4px 12px;font-size:12px}.btn.block{width:100%;padding:10px 0}.btn-link{background:none;border:none;color:var(--primary);font-size:13px;padding:2px 4px}.btn-link:hover{text-decoration:underline}.btn-link.danger{color:var(--danger)}.input{width:100%;border:1px solid var(--line);border-radius:var(--radius);padding:9px 12px;font-size:14px;margin-bottom:12px;outline:none}.input:focus{border-color:var(--primary)}.icon-btn{background:none;border:none;font-size:14px;color:var(--text-dim);padding:4px 8px}.icon-btn:hover{color:var(--text)}.form-err,.error-msg{color:var(--danger);font-size:13px;margin:4px 0 10px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--panel);border-radius:12px;padding:24px;width:400px;max-width:calc(100vw - 48px);box-shadow:0 12px 40px #0000002e}.modal h2{margin:0 0 18px;font-size:17px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#e8effc,#f5f7fa 55%,#dce6f7)}.login-card{background:var(--panel);border-radius:16px;box-shadow:0 12px 48px #1f23291a;padding:36px 40px;width:380px;max-width:calc(100vw - 40px);text-align:center}.login-logo{font-size:40px}.login-title{margin:8px 0 4px;font-size:22px}.login-subtitle{margin:0 0 22px;color:var(--text-dim);font-size:13px}.login-card form{text-align:left}.field{display:block;margin-bottom:14px}.field span{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}.field input{width:100%;border:1px solid var(--line);border-radius:var(--radius);padding:9px 12px;font-size:14px;outline:none}.field input:focus{border-color:var(--primary)}.btn-link{margin-top:14px}.home-page{min-height:100vh;display:flex;flex-direction:column}.home-header{height:56px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.home-logo{font-size:17px;font-weight:600}.home-user{display:flex;align-items:center;gap:10px;font-size:14px}.home-avatar{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px}.home-main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px}.home-welcome{margin:0;font-size:26px}.home-sub{margin:8px 0 36px;color:var(--text-dim)}.home-actions{display:flex;gap:24px}.home-card{width:220px;padding:28px 20px;border:1px solid var(--line);border-radius:14px;background:var(--panel);display:flex;flex-direction:column;align-items:center;gap:8px;transition:box-shadow .15s,transform .15s,border-color .15s}.home-card:hover{border-color:var(--primary);box-shadow:0 8px 24px #0052d91f;transform:translateY(-2px)}.home-card.primary{border-color:var(--primary)}.home-card-icon{font-size:34px}.home-card-title{font-size:17px;font-weight:600;color:var(--text)}.home-card.primary .home-card-title{color:var(--primary)}.home-card-desc{font-size:13px;color:var(--text-dim)}.meeting-page{height:100vh;display:flex;flex-direction:column;background:var(--bg)}.share-warn{background:var(--danger);color:#fff;font-size:13px;padding:6px 16px;display:flex;align-items:center;justify-content:center;gap:14px}.share-warn .btn-link{color:#fff;text-decoration:underline}.meeting-header{height:52px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;flex-shrink:0}.meeting-title{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600}.room-name{letter-spacing:.5px}.host-badge{background:#fff7e6;color:#d46b08;border:1px solid #ffd591;border-radius:4px;font-size:11px;font-weight:400;padding:1px 6px}.net-dot{width:9px;height:9px;border-radius:50%;display:inline-block}.net-dot.online{background:#2ea44f}.net-dot.offline{background:var(--danger);animation:blink 1s infinite}.net-dot.connecting{background:#d4a017}@keyframes blink{50%{opacity:.3}}.meeting-body{flex:1;display:flex;min-height:0}.video-grid{flex:1;display:flex;flex-wrap:wrap;align-content:center;justify-content:center;gap:14px;padding:18px;overflow:auto;min-width:0}.meeting-body.with-panel .video-grid{margin-right:300px}.video-tile{position:relative;background:#25272b;border-radius:10px;overflow:hidden;width:min(420px,46%);aspect-ratio:16 / 9}.video-tile.screen-tile{width:100%;max-width:980px}.video-tile video{width:100%;height:100%;object-fit:cover;display:block}.video-tile video.fit-contain{object-fit:contain}.video-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.video-avatar{width:72px;height:72px;border-radius:50%;background:var(--primary);color:#fff;font-size:30px;display:flex;align-items:center;justify-content:center}.video-label{position:absolute;left:10px;bottom:8px;background:#0000008c;color:#fff;font-size:12px;padding:3px 10px;border-radius:4px;display:flex;align-items:center;gap:6px;max-width:calc(100% - 20px)}.video-label-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mic-off-icon{font-size:12px}.empty-tip{align-self:center;text-align:center;width:100%;color:var(--text-dim);font-size:15px}.blocked-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}.blocked-tip{background:#fff2f0;border:1px solid #ffccc7;color:#cf1322;border-radius:var(--radius);padding:14px 22px;max-width:520px;text-align:center}.side-panel{position:absolute;right:0;top:52px;bottom:76px;width:300px;background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;z-index:10}.meeting-body.with-panel{position:relative}.panel-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 8px;flex-shrink:0}.panel-tab{flex:1;background:none;border:none;border-bottom:2px solid transparent;padding:12px 0;font-size:14px;color:var(--text-dim)}.panel-tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.members-list{flex:1;overflow:auto;padding:10px}.mute-all-btn{width:100%;margin-bottom:10px}.member-item{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:var(--radius);font-size:14px}.member-item:hover{background:var(--bg)}.member-avatar{width:30px;height:30px;border-radius:50%;background:#6b7cff;color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}.member-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.member-state{font-size:14px}.chat-list{flex:1;overflow:auto;padding:12px}.chat-empty{color:var(--text-dim);font-size:13px;text-align:center;margin-top:30px}.chat-item{margin-bottom:12px;font-size:13px}.chat-item.self{text-align:right}.chat-meta{display:flex;gap:8px;color:var(--text-dim);font-size:11px;margin-bottom:3px}.chat-item.self .chat-meta{justify-content:flex-end}.chat-user{color:var(--text);font-weight:600}.chat-text{background:var(--bg);border-radius:8px;padding:7px 11px;display:inline-block;text-align:left;max-width:100%;word-break:break-word}.chat-item.self .chat-text{background:#e6efff}.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);flex-shrink:0}.chat-input input{flex:1;border:1px solid var(--line);border-radius:var(--radius);padding:7px 10px;font-size:13px;outline:none;min-width:0}.chat-input input:focus{border-color:var(--primary)}.meeting-controls{height:76px;background:var(--bar-bg);display:flex;align-items:center;justify-content:center;gap:6px;padding:0 12px;flex-shrink:0}.ctrl-btn{background:none;border:none;border-radius:var(--radius);color:var(--bar-text);width:76px;padding:8px 0;display:flex;flex-direction:column;align-items:center;gap:3px}.ctrl-btn:hover:not(:disabled){background:#ffffff1a}.ctrl-btn.active{color:#8ab4ff}.ctrl-btn.danger{color:#ff8f8f}.ctrl-btn.danger:hover:not(:disabled){background:#e5484d2e}.ctrl-icon{font-size:20px;line-height:1}.ctrl-text{font-size:11px;white-space:nowrap}.share-min{height:100vh;background:var(--bg)}.share-floatbar{position:fixed;bottom:14px;left:50%;transform:translate(-50%);background:var(--bar-bg);border-radius:22px;padding:6px 10px;display:flex;gap:4px;box-shadow:0 6px 24px #0000004d;z-index:200}.float-btn{background:none;border:none;border-radius:50%;width:38px;height:38px;font-size:17px;display:flex;align-items:center;justify-content:center}.float-btn:hover{background:#ffffff1f}.float-btn.off{opacity:.65}.float-btn.danger{background:var(--danger)}.float-btn.danger:hover{background:#ff5b60}.invite-row{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:13px}.invite-label{color:var(--text-dim);flex-shrink:0;width:60px}.invite-value{flex:1;word-break:break-all;background:var(--bg);border-radius:6px;padding:7px 10px}.invite-value.link{color:var(--primary)}@media (max-width: 720px){.home-actions{flex-direction:column}.video-tile{width:100%}.meeting-body.with-panel .video-grid{margin-right:0}.side-panel{width:100vw;top:52px}.ctrl-btn{width:60px}.ctrl-text{font-size:10px}}