:root{--bg-primary:#f6f0e4;--bg-secondary:#eee3d1;--bg-card:#fbf7ef;--bg-card-hover:#fffaf2;--bubble-user:#e8efe7;--bubble-assistant:#fbf7ef;--text-primary:#241d18;--text-secondary:#695b4d;--text-muted:#9a8d7f;--text-on-primary:#fff;--primary:#315f54;--primary-light:#4f7d70;--primary-dark:#24473f;--accent:#7b3f56;--moss:#315f54;--btn-primary-bg:#315f54;--btn-primary-text:#f5f0eb;--border:#241d1824;--border-subtle:#241d181a;--divider:#241d181a;--color-success:#315f54;--color-danger:#7b3f56;--color-warning:#b6a06d;--shadow-sm:none;--shadow-md:none;--shadow-lg:none;--font-heading:"Noto Serif SC", "Songti SC", Georgia, serif;--font-body:"HarmonyOS Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "SF Mono", "Fira Code", monospace;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease;--radius-sm:6px;--radius-md:8px;--radius-lg:10px;--radius-pill:999px;font-family:var(--font-body);color:var(--text-primary);background:var(--bg-primary)}@media (prefers-color-scheme:dark){:root{--bg-primary:#f6f0e4;--bg-secondary:#eee3d1;--bg-card:#fbf7ef;--bg-card-hover:#fffaf2;--bubble-user:#e8efe7;--bubble-assistant:#fbf7ef;--text-primary:#241d18;--text-secondary:#695b4d;--text-muted:#9a8d7f;--primary:#315f54;--primary-light:#4f7d70;--primary-dark:#24473f;--btn-primary-bg:#f5f0eb;--btn-primary-text:#1c1917;--border:#241d1824;--border-subtle:#241d181a;--divider:#241d181a;--shadow-sm:none;--shadow-md:none;--shadow-lg:none}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:100%;height:100%}.app-shell{flex-direction:column;width:100%;height:100%;display:flex;overflow:hidden}.top-bar{border-bottom:1px solid var(--divider);background:var(--bg-primary);flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 20px;display:flex}.top-bar-left,.top-bar-right{align-items:center;gap:8px;display:flex}.top-bar-center{font-family:var(--font-heading);color:var(--text-primary);font-size:15px;font-weight:600}.top-bar-brand{font-family:var(--font-heading);letter-spacing:0;color:var(--text-primary);font-size:16px;font-weight:600}.top-bar button{cursor:pointer;color:var(--text-secondary);transition:color var(--transition-fast), background var(--transition-fast);background:0 0;border:none;border-radius:2px;padding:6px}.top-bar button:hover{color:var(--text-primary);background:var(--bg-secondary)}.pair-view{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:24px;padding:32px 24px;display:flex}.pair-logo{font-family:var(--font-heading);letter-spacing:0;color:var(--text-primary);border-bottom:1px solid var(--border);padding-bottom:8px;font-size:28px;font-weight:700}.pair-tagline{font-family:var(--font-heading);color:var(--text-secondary);font-size:16px;font-style:italic}.pair-instructions{text-align:center;color:var(--text-secondary);max-width:280px;font-size:14px;line-height:1.7}.pair-code-input{justify-content:center;gap:6px;display:flex}.pair-code-input input{text-align:center;width:36px;height:46px;font-family:var(--font-mono);border:0;border-bottom:2px solid var(--border);color:var(--text-primary);text-transform:uppercase;transition:border-color var(--transition-fast);background:0 0;border-radius:0;outline:none;font-size:20px;font-weight:700}.pair-code-input input:focus{border-color:var(--primary)}.pair-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);cursor:pointer;transition:all var(--transition-fast);border:none;border-radius:2px;justify-content:center;align-items:center;gap:8px;width:100%;max-width:260px;padding:12px 32px;font-size:15px;font-weight:600;display:flex}.pair-btn:hover:not(:disabled){opacity:.9;box-shadow:none}.pair-btn:disabled{opacity:.5;cursor:not-allowed}.pair-divider{width:100%;max-width:260px;color:var(--text-muted);align-items:center;gap:12px;font-size:12px;display:flex}.pair-divider:before,.pair-divider:after{content:"";background:var(--border);flex:1;height:1px}.pair-lang-switcher{gap:8px;display:flex}.pair-lang-switcher button{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;border-radius:2px;padding:4px 12px;font-size:12px}.pair-lang-switcher button.active{background:var(--primary);color:var(--text-on-primary);border-color:var(--primary)}.persona-view{flex:1;padding:20px;overflow-y:auto}.persona-title{font-family:var(--font-heading);color:var(--text-primary);margin-bottom:16px;font-size:22px;font-weight:700}.persona-list{flex-direction:column;gap:10px;display:flex}.persona-card{border:0;border-top:1px solid var(--border-subtle);cursor:pointer;transition:all var(--transition-fast);box-shadow:none;background:0 0;border-radius:0;align-items:center;gap:14px;padding:14px 16px;display:flex}.persona-card:hover{box-shadow:none;background:#315f540a}.persona-avatar{background:var(--bg-secondary);width:48px;height:48px;color:var(--text-secondary);border:2px solid 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0;font-size:11px}.msg-row{flex-direction:column;max-width:85%;display:flex}.msg-row.user{align-self:flex-end}.msg-row.assistant{align-self:flex-start}.msg-bubble{word-break:break-word;white-space:pre-wrap;border-radius:8px;padding:10px 14px;font-size:14px;line-height:1.65}.msg-row.user .msg-bubble{background:var(--bubble-user);color:var(--text-primary);border:1px solid var(--border-subtle);border-bottom-right-radius:8px}.msg-row.assistant .msg-bubble{background:var(--bubble-assistant);color:var(--text-primary);border:1px solid var(--border-subtle);border-bottom-left-radius:8px}.msg-meta{color:var(--text-muted);align-items:center;gap:6px;margin-top:4px;font-size:11px;display:flex}.msg-row.user .msg-meta{justify-content:flex-end}.msg-tts-btn{cursor:pointer;color:var(--text-muted);transition:color var(--transition-fast);background:0 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fadeIn;display:flex;position:fixed;inset:0}.confirm-dialog{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);width:100%;max-width:320px;box-shadow:none;padding:24px}.confirm-btn{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);border:none;flex:1;padding:10px 16px;font-size:14px;font-weight:600}.confirm-btn-cancel{background:var(--bg-secondary);color:var(--text-primary)}.confirm-btn-cancel:hover{background:var(--border)}.confirm-btn-danger{background:var(--color-danger);color:#fff}.confirm-btn-danger:hover{opacity:.9}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (width>=481px){.msg-row{max-width:70%}}@media (width>=769px){.pair-view{padding:48px 32px}.chat-input-bar{padding:16px 24px}.chat-messages{padding:20px 24px}}@media (width>=1025px){.msg-row{max-width:60%}}.app-shell,.top-bar,.pair-view,.persona-view,.chat-view,.settings-view{background:var(--bg-primary);color:var(--text-primary)}:where(.persona-card,.settings-logout-btn,.msg-bubble,.confirm-dialog,.view-hint){box-shadow:none!important}:where(.persona-card,.settings-logout-btn){border:0!important;border-top:1px solid var(--border-subtle)!important;background:0 0!important;border-radius:0!important}:where(.persona-card,.settings-logout-btn):hover{background:#315f540a!important}:where(button,input,textarea,select){box-shadow:none!important;border-radius:2px!important}:where(input,textarea,select){background:var(--bg-card)!important;color:var(--text-primary)!important;border-color:var(--border)!important}:where(.pair-btn,.chat-send-btn,.confirm-btn-danger,.settings-lang-btn.active,.pair-lang-switcher button.active){background:var(--primary)!important;color:var(--text-on-primary)!important;border-color:var(--primary)!important}:where(.persona-name,.view-title,.top-bar-brand,.pair-logo){font-family:var(--font-heading)}