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rotate(0)}to{transform:rotate(360deg) translateY(-56px) rotate(-360deg)}}.nickname-title{margin-bottom:8px;font-size:19px;font-weight:700;line-height:1.4;color:var(--ink)}.nickname-desc{margin-bottom:18px;font-size:13px;line-height:1.65;color:var(--ink-muted)}.nickname-field{display:flex;align-items:stretch;gap:10px}#nickname-input{flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:12px;background:#fff;border:1px solid rgba(47,79,74,.28);color:var(--ink);font-size:15px;transition:border-color .18s ease,box-shadow .18s ease}#nickname-input::placeholder{color:var(--ink-faint)}#nickname-input:hover{border-color:rgba(47,79,74,.4)}#nickname-input:focus{outline:none;border-color:var(--grass-deep);box-shadow:0 0 0 3px rgba(124,196,92,.28)}#nickname-input:focus-visible{outline:2px solid var(--grass-deep);outline-offset:2px}.nickname-btn{flex:0 0 auto;height:44px;padding:0 20px;border-radius:12px;background:var(--sea);border:1px solid var(--sea-deep);color:var(--paper);font-size:14.5px;font-weight:600;white-space:nowrap;transition:background .18s ease,transform .12s ease}.nickname-btn:hover{background:#3a92bd}.nickname-btn:active{background:var(--sea-deep);transform:translateY(1px)}.nickname-cancel{display:block;margin:14px auto 0;padding:6px 12px;background:none;border:none;border-radius:var(--r-sm);color:var(--ink-faint);font-family:inherit;font-size:13px;cursor:pointer;transition:color .18s ease}.nickname-cancel:hover{color:var(--ink);text-decoration:underline}.nickname-error{margin-top:10px;font-size:12.5px;line-height:1.5;color:var(--coral-deep)}.toast-message{position:fixed;top:76px;left:50%;z-index:7000;transform:translate(-50%);padding:9px 18px;border-radius:var(--pill);background:var(--panel-strong);border:1px solid var(--line);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--paper);font-size:13px;line-height:1.5;box-shadow:var(--shadow);animation:toast-in .28s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(-12px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@media (max-width: 820px){:root{--footer-h: 0px;--panel-w: 100%}.brand{top:10px;right:12px}.brand-logo{width:30px;height:30px}.user-chip{max-width:46vw;padding:4px 10px;font-size:12.5px}.growth-hud{right:12px;bottom:60px;width:min(212px,62vw);padding:8px 10px 9px}.growth-stage{font-size:12.5px}.growth-tip{font-size:11px}.tree-hint{top:58%;font-size:13px;padding:7px 14px}.bubble-chip{right:12px;max-width:74vw;font-size:12.5px}.chat-panel{top:auto;left:0;right:0;bottom:0;width:100%;height:58vh;max-height:58vh;border-radius:var(--r-lg) var(--r-lg) 0 0;border-left:none;border-right:none;border-bottom:none}.chat-panel.collapsed{transform:translateY(calc(100% + 24px))}.chat-messages{padding:8px 8px 10px}.chat-msg{max-width:92%}.chat-float-btn{left:14px;bottom:12px;width:46px;height:46px}.chat-float-icon{font-size:20px}.chat-log{left:14px;bottom:150px;width:min(300px,74vw);max-height:40vh}.chat-log-item{font-size:13px}.floating-controls{right:12px;bottom:12px;gap:8px}.control-btn{width:34px;height:34px;font-size:15px}.modal{padding:14px}.modal-content{padding:18px 16px;border-radius:var(--r-md)}.tags-container{gap:6px}.emotion-tag{padding:5px 10px;font-size:12.5px}.nickname-content{padding:22px 18px}.nickname-orbit{width:92px;height:92px;margin-bottom:14px}.nickname-orbit:after{font-size:28px}.orbit-leaf{animation-name:leaf-orbit-sm}.nickname-title{font-size:17.5px}.nickname-desc{font-size:12.5px}}@keyframes leaf-orbit-sm{0%{transform:rotate(0) translateY(-46px) rotate(0)}to{transform:rotate(360deg) translateY(-46px) rotate(-360deg)}}@media (prefers-reduced-motion: reduce){.chat-panel,.chat-float-btn,.chat-log,.chat-log-item,.growth-fill,.tree-hint,.bubble-chip,.modal,.modal-content,.toast-message{transition-duration:.01ms!important;animation:none!important}.orbit-leaf{animation:none!important}}