:root{--bg-primary: #1a2e1a;--bg-secondary: #1e2a1e;--bg-tertiary: #283828;--accent: #e8853a;--accent-hover: #cc6e28;--accent-dim: #a86828;--text-primary: #e0e8d8;--text-secondary: #98a888;--text-muted: #607060;--border: #3e5c3e;--border-light: #334a33;--msg-user-bg: #3d5c1e;--msg-assistant-bg: #2a3e2a;--msg-system-color: #88a080;--btn-bg: #1e2a1e;--btn-hover-bg: #e8853a;--btn-disabled-bg: #2a3a2a;--btn-disabled-color: #5a6a5a;--status-success: #3c8c3c;--status-success-dim: color-mix(in srgb, #3c8c3c 40%, transparent);--record-active: #cc3333;--record-processing: #e8853a;--header-height: 52px;--border-radius: 1rem;--border-radius-sm: .5rem;--content-bg: var(--bg-tertiary);--content-text: var(--text-primary);--content-text-secondary: var(--text-secondary);--content-heading: var(--accent);--content-border: var(--border);--content-border-light: var(--border-light);--content-link: var(--accent);--content-code-bg: var(--bg-secondary);--convo-user-color: #a8c878;--font-xs: .75rem;--font-sm: .85rem;--font-base: 1rem;--font-lg: 1.15rem;--font-xl: 1.3rem;--font-2xl: 1.6rem;--header-padding-v: .75rem;--header-padding-h: 1rem;--record-btn-size: 64px;--record-icon-size: 26px;--action-btn-size: 44px;--action-icon-size: 20px;--font-size-body: var(--font-base);--font-size-convo: 1.1rem;--scrollbar-width: 6px;--scrollbar-thumb: var(--border);--scrollbar-thumb-hover: var(--accent-dim)}@media(min-width:768px){:root{--header-height: 64px;--header-padding-v: 1rem;--header-padding-h: 1.5rem;--record-btn-size: 80px;--record-icon-size: 32px;--action-btn-size: 52px;--action-icon-size: 24px;--font-size-body: 1.05rem;--font-size-convo: 1.25rem}}body.season-spring{--bg-primary: #1a2a1e;--bg-secondary: #1e2e20;--bg-tertiary: #263826;--accent: #e88aa0;--accent-hover: #d47088;--accent-dim: #b86878;--border: #3a5030;--border-light: #2e4428;--msg-user-bg: #2a4a20;--msg-assistant-bg: #283828;--convo-user-color: #a8c890;--content-bg: #263826;--content-code-bg: #1e2e20;--content-heading: #e88aa0;--content-border: #3a5030;--content-border-light: #2e4428;--content-link: #e88aa0;--status-success: #4a9050;--status-success-dim: color-mix(in srgb, #4a9050 40%, transparent);--scrollbar-thumb: #3a5030;--scrollbar-thumb-hover: #b86878}body.season-summer{--bg-primary: #1e2210;--bg-secondary: #242a14;--bg-tertiary: #303818;--accent: #e8b83a;--accent-hover: #cc9e28;--accent-dim: #a88828;--border: #4a5020;--border-light: #3e4418;--msg-user-bg: #3d5020;--msg-assistant-bg: #303818;--convo-user-color: #b8d070;--content-bg: #303818;--content-code-bg: #242a14;--content-heading: #e8b83a;--content-border: #4a5020;--content-border-light: #3e4418;--content-link: #e8b83a;--status-success: #5a9040;--status-success-dim: color-mix(in srgb, #5a9040 40%, transparent);--scrollbar-thumb: #4a5020;--scrollbar-thumb-hover: #a88828}body.season-winter{--bg-primary: #141e28;--bg-secondary: #1a2230;--bg-tertiary: #222e3a;--accent: #7ab0d8;--accent-hover: #5a98c4;--accent-dim: #4a80aa;--text-primary: #e0e8f0;--text-secondary: #8898a8;--text-muted: #5a6a7a;--border: #2a3a4e;--border-light: #223040;--msg-user-bg: #1e3048;--msg-assistant-bg: #1e2838;--msg-system-color: #8898a8;--btn-disabled-bg: #2a3040;--btn-disabled-color: #5a6a7a;--convo-user-color: #90c0d8;--content-bg: #222e3a;--content-code-bg: #1a2230;--content-text: #e0e8f0;--content-text-secondary: #8898a8;--content-heading: #7ab0d8;--content-border: #2a3a4e;--content-border-light: #223040;--content-link: #7ab0d8;--status-success: #3a8a6a;--status-success-dim: color-mix(in srgb, #3a8a6a 40%, transparent);--scrollbar-thumb: #2a3a4e;--scrollbar-thumb-hover: #4a80aa}*{box-sizing:border-box;margin:0;padding:0}html,body{overscroll-behavior:none;-webkit-overflow-scrolling:auto}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow:hidden}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}*::-webkit-scrollbar{width:var(--scrollbar-width)}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}*::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}.markdown-content{color:var(--content-text);line-height:1.6}.markdown-content h1{font-size:var(--font-xl);font-weight:700;color:var(--content-heading);margin:0 0 .5rem;border-bottom:1px solid var(--content-border-light);padding-bottom:.35rem}.markdown-content h2{font-size:var(--font-lg);font-weight:600;color:var(--content-heading);margin:1rem 0 .4rem}.markdown-content h3{font-size:var(--font-base);font-weight:600;color:var(--content-text);opacity:.9;margin:.8rem 0 .3rem}.markdown-content h4{font-size:var(--font-base);font-weight:600;color:var(--content-text-secondary);margin:.6rem 0 .3rem}.markdown-content p{margin:.4rem 0}.markdown-content ul,.markdown-content ol{padding-left:1.3rem;margin:.4rem 0}.markdown-content li{margin:.15rem 0}.markdown-content li::marker{color:var(--text-muted)}.markdown-content strong{color:var(--content-text);font-weight:600}.markdown-content code{background:var(--content-code-bg);padding:.1rem .3rem;border-radius:3px;font-size:.9em}.markdown-content pre{background:var(--content-code-bg);padding:.6rem;border-radius:var(--border-radius-sm);overflow-x:auto;margin:.5rem 0}.markdown-content pre code{background:none;padding:0}.markdown-content blockquote{border-left:3px solid var(--content-border);padding-left:.8rem;margin:.5rem 0;color:var(--content-text-secondary);font-style:italic}.markdown-content a{color:var(--content-link);text-decoration:none}.markdown-content a:hover{text-decoration:underline}.markdown-content table{border-collapse:collapse;width:100%;margin:.5rem 0}.markdown-content th,.markdown-content td{border:1px solid var(--content-border);padding:.4rem .6rem;text-align:left}.markdown-content th{background:var(--bg-secondary);font-weight:600}.markdown-content hr{border:none;border-top:1px solid var(--content-border-light);margin:.8rem 0}