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4px;display:flex}.ink{border:2px solid #0000;border-radius:50%;outline:2px solid #0000;width:20px;height:20px;transition:transform .1s}.ink.on{border-color:var(--panel);outline-color:#fff}.ink:hover{transform:scale(1.12)}.board-area{background:repeating-conic-gradient(#ffffff03 0% 25%,#0000 0% 50%) 0 0/22px 22px;flex:1;place-items:center;min-height:0;display:grid;overflow:hidden}.board-area.scroll{place-items:start center;padding:16px 0;overflow:auto}.page{background:#fdfcf8;border-radius:6px;flex:none;position:relative;overflow:hidden;box-shadow:0 20px 50px -20px #000,0 0 0 1px #ffffff14}.page-base{object-fit:contain;display:block;position:absolute;inset:0}.page-ink{touch-action:none;position:absolute;inset:0}.page-loading{color:#77758a;place-items:center;display:grid;position:absolute;inset:0}.board-foot{border-top:1px solid var(--line);align-items:center;gap:12px;min-height:42px;padding:6px 12px;display:flex}.pager{align-items:center;gap:4px;display:flex}.chat{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(#14141e,#101018);flex-direction:column;min-height:0;display:flex;overflow:hidden}.chat-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:10px 10px 10px 14px;display:flex}.chat-list{flex-direction:column;flex:1;gap:10px;padding:10px 12px;display:flex;overflow-y:auto}.chat-sys{color:var(--dim);text-align:center;font-size:11.5px}.chat-msg{max-width:92%}.chat-msg.mine{align-self:flex-end}.chat-meta{color:var(--dim);align-items:center;gap:6px;margin-bottom:3px;font-size:11.5px;display:flex}.chat-meta b{color:var(--muted);font-weight:600}.chat-meta .dot{border-radius:50%;width:7px;height:7px}.chat-text{word-wrap:break-word;white-space:pre-wrap;background:#1d1d29;border-radius:4px 12px 12px;padding:7px 10px}.chat-msg.mine .chat-text{background:color-mix(in srgb, var(--accent) 30%, #1d1d29);border-radius:12px 4px 12px 12px}.chat-form{border-top:1px solid var(--line);gap:6px;padding:10px;display:flex}.chat-form input{border:1px solid var(--line-2);background:#0c0c13;border-radius:9px;outline:none;flex:1;min-width:0;height:34px;padding:0 10px}.loading-piano{z-index:3;border:1px solid var(--line-2);height:30px;color:var(--muted);pointer-events:none;background:#12121bcc;border-radius:9px;place-items:center;font-size:12px;display:grid;position:absolute;top:12px;left:24px;right:24px;overflow:hidden}.loading-piano .bar{background:linear-gradient(90deg,#8b6cff55,#2ee6c655);transition:width .2s;position:absolute;top:0;bottom:0;left:0}.loading-piano span{position:relative}.muted-banner{z-index:3;background:color-mix(in srgb, var(--warn) 22%, #12121b);color:var(--warn);border:1px solid color-mix(in srgb, var(--warn) 40%, transparent);border-radius:9px;padding:6px 12px;font-size:12.5px;position:absolute;top:12px;left:50%;transform:translate(-50%)}@media (width<=1180px){.tb-left .room-pill b,.stage-switch .seg-btn svg+*,.topbar .brand span{display:none}}@media (width<=980px){.landing{grid-template-columns:1fr;gap:28px;padding:28px 20px}.keys-deco{display:none}.main,.room.chat-open .main{grid-template-columns:220px minmax(0,1fr)}.room.chat-open .chat{z-index:40;width:300px;position:fixed;top:64px;bottom:12px;right:12px}}