*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #faf5f0;--card-bg: rgba(255, 255, 255, .75);--card-border: rgba(255, 182, 193, .35);--text: #4a4a5a;--text-muted: #8a8a9a;--pink: #ffb6c1;--pink-deep: #ff8fa3;--accent: #c9b1ff;--miao: #ff6b9d;--gu: #5fc9c0;--wu: #f0c060}body{font-family:Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}#app{position:relative;min-height:100vh}.bg-layer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0}.bg-image{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:center;background-repeat:no-repeat;opacity:.5;transition:background-image .8s ease}.bg-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#faf5f08c,#faf5f0c7)}.app-container{position:relative;z-index:1;width:100%;max-width:560px;margin:0 auto;padding:40px 20px 32px;display:flex;flex-direction:column;gap:20px}.app-header{text-align:center;padding:8px 0 0}.logo-cat{display:flex;justify-content:center;margin-bottom:8px}.cat-svg{width:64px;height:64px;filter:drop-shadow(0 2px 6px rgba(255,182,193,.4))}.title{font-size:32px;font-weight:700;letter-spacing:6px;color:var(--miao);margin-bottom:2px}.subtitle{font-size:13px;color:var(--text-muted);letter-spacing:6px;text-transform:uppercase}.mode-switch{display:flex;gap:10px}.mode-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;border:2px solid var(--card-border);border-radius:16px;background:var(--card-bg);color:var(--text-muted);font-size:15px;cursor:pointer;transition:all .25s;font-family:inherit;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mode-btn:hover{border-color:var(--pink);color:var(--text)}.mode-btn.active{border-color:var(--pink-deep);background:#ffb6c126;color:var(--miao);font-weight:600}.mode-icon{font-size:17px}.cat-toggle{display:flex;justify-content:center}.cat-toggle-btn{display:flex;align-items:center;gap:8px;padding:5px 5px 5px 14px;border:1.5px solid var(--card-border);border-radius:20px;background:var(--card-bg);cursor:pointer;transition:all .25s;font-family:inherit;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.cat-toggle-btn:hover{border-color:var(--pink)}.cat-toggle-btn .cat-toggle-dot{width:20px;height:20px;border-radius:50%;background:#ccc;transition:all .3s;order:2}.cat-toggle-btn.on .cat-toggle-dot{background:var(--pink-deep)}.cat-toggle-btn .cat-toggle-label{font-size:13px;color:var(--text-muted);order:1;min-width:28px;text-align:right}.card{padding:20px;border:1.5px solid var(--card-border);border-radius:20px;background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;flex-direction:column;gap:12px;box-shadow:0 2px 16px #ffb6c114}.card-label{font-size:13px;color:var(--text-muted);font-weight:500;letter-spacing:1px}.text-input{width:100%;padding:14px;border:1.5px solid var(--card-border);border-radius:14px;background:#fff9;color:var(--text);font-size:15px;font-family:inherit;resize:vertical;min-height:90px;line-height:1.7;transition:border-color .25s}.text-input:focus{outline:none;border-color:var(--pink-deep);background:#fffc}.text-input::placeholder{color:#c0c0d0}.action-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border:none;border-radius:14px;background:linear-gradient(135deg,var(--pink),var(--pink-deep));color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .25s;font-family:inherit;letter-spacing:1px}.action-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #ff8fa359}.action-btn:disabled{opacity:.5;cursor:default}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.output-card{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.output-text{padding:14px;border:1.5px solid var(--card-border);border-radius:14px;background:#fff9;font-size:20px;line-height:1.8;word-break:break-all;min-height:60px;letter-spacing:2px;color:var(--text)}.output-actions{display:flex;gap:8px;justify-content:flex-end}.mini-btn{padding:6px 16px;border:1.5px solid var(--card-border);border-radius:10px;background:#fff9;color:var(--text-muted);font-size:13px;cursor:pointer;transition:all .2s;font-family:inherit}.mini-btn:hover{border-color:var(--pink);color:var(--miao)}.bg-refresh{position:fixed;bottom:24px;right:24px;z-index:2;width:36px;height:36px;border-radius:50%;background:var(--card-bg);border:1.5px solid var(--card-border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .25s;color:var(--text-muted);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.bg-refresh:hover{border-color:var(--pink);color:var(--miao);transform:scale(1.1)}.refresh-icon{display:block}.app-footer{text-align:center;padding:8px 0 16px;color:var(--text-muted);font-size:12px;line-height:2;letter-spacing:1px}.invite-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#1e1e3299;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.invite-card{background:var(--card-bg);border:1.5px solid var(--card-border);border-radius:20px;padding:32px 28px;text-align:center;display:flex;flex-direction:column;gap:14px;min-width:300px;max-width:90vw;box-shadow:0 8px 32px #ffb6c11f;animation:fadeIn .3s ease}.invite-title{font-size:20px;font-weight:600;color:var(--miao);letter-spacing:2px}.invite-desc{font-size:13px;color:var(--text-muted)}.invite-input{width:100%;padding:12px 16px;border:1.5px solid var(--card-border);border-radius:12px;background:#fff9;color:var(--text);font-size:15px;font-family:inherit;text-align:center;letter-spacing:4px;transition:border-color .25s}.invite-input:focus{outline:none;border-color:var(--pink-deep);background:#fffc}.invite-input::placeholder{color:#c0c0d0;letter-spacing:1px}.invite-error{font-size:13px;color:#e94560}.invite-btn{padding:12px;border:none;border-radius:14px;background:linear-gradient(135deg,var(--pink),var(--pink-deep));color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .25s;font-family:inherit;letter-spacing:2px}.invite-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #ff8fa359}.invite-btn:disabled{opacity:.5;cursor:default}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:2px;vertical-align:middle;position:relative;top:-1px}.dot.miao{background:var(--miao)}.dot.gu{background:var(--gu)}.dot.wu{background:var(--wu)}@media(max-width:480px){.app-container{padding:24px 14px;gap:16px}.title{font-size:26px;letter-spacing:4px}.cat-svg{width:52px;height:52px}.output-text{font-size:17px}.mode-btn{font-size:14px;padding:10px}.card{padding:16px;border-radius:16px}}