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32px));padding:24px}.dialog-heading{display:flex;align-items:center;gap:12px}.dialog-heading h2{flex:1;margin:0;font-size:18px;font-weight:500}.account-menu-item{display:block;width:100%;min-height:44px;text-align:left;padding:10px 0;border-bottom:1px solid var(--line)}.account-menu-item:hover{color:var(--accent)}.wallet-identity{color:var(--muted);margin-top:16px;font-size:13px}.wallet-balance{display:flex;justify-content:space-between;align-items:baseline;margin:24px 0;gap:16px}.wallet-balance strong{font-size:28px;font-weight:500;font-variant-numeric:tabular-nums}.wallet-recharge{width:100%;margin-bottom:20px}.wallet-content details{border-top:1px solid var(--line);padding:4px 0}.wallet-content details summary{padding:10px 0;cursor:pointer;min-height:44px}.wallet-content details details{margin-left:12px}.model-choice{display:flex;flex-direction:column;align-items:flex-start;gap:4px;width:100%;padding:12px;margin-top:8px;border:1px solid var(--line);border-radius:10px;text-align:left}.model-choice[aria-pressed="true"]{background:var(--pale);border-color:var(--accent)}.model-choice small{white-space:normal;overflow-wrap:anywhere}@media (max-width:760px){.main-shell{margin-left:0}.sidebar{width:min(280px,calc(100vw - 40px))}.topbar{height:60px;padding:8px 12px}.messages{padding:24px 16px}.composer-area{padding:12px 16px 16px}.message.user .message-body{max-width:94%}}@media (hover:none),(pointer:coarse){.message-more{display:block;width:44px;min-height:44px;margin-top:4px;color:var(--muted);font-size:20px}.message.user .message-more{margin-left:auto}.message .message-meta{visibility:hidden;opacity:0}.message.tools-open .message-meta{visibility:visible;opacity:1}}body{line-height:1.6}.sidebar{width:240px;padding:28px 16px 16px}.main-shell{margin-left:240px}.brand{padding:0 12px 28px;gap:12px}.brand 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