:root{--bg: #0f0d13;--surface: #1a1520;--surface-2: #1e1a26;--surface-3: #161220;--border: #2a2530;--text: #e8e4ec;--text-muted: #8a7a9a;--text-dim: #6a5a7a;--text-faint: #4a3a5a;--accent: #c9a0ff;--accent-bg: #2a1a3a;--good: #80d060;--warn: #d0a060}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);padding:16px 16px 40px;line-height:1.5;-webkit-text-size-adjust:100%}h1{font-size:22px;color:var(--accent);margin-bottom:4px}.subtitle{font-size:13px;color:var(--text-muted);margin-bottom:20px}.category{margin:16px 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-dim)}.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin:6px 0;text-decoration:none;color:var(--text);-webkit-tap-highlight-color:transparent;transition:border-color .2s}.card:active{border-color:var(--accent);background:var(--surface-2)}.card-title{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}.card-desc{font-size:12px;color:var(--text-muted);margin-top:2px}.divider{border:none;border-top:1px solid var(--border);margin:16px 0}.footer{text-align:center;font-size:11px;color:var(--text-faint);margin-top:24px}.page-back{display:inline-block;font-size:13px;color:var(--accent);text-decoration:none;margin-bottom:16px;-webkit-tap-highlight-color:transparent}.page-back:active{opacity:.7}.page-shell-placeholder{border:1px dashed var(--border);border-radius:10px;padding:24px 16px;margin-top:12px;color:var(--text-muted);font-size:13px}.page-shell-placeholder strong{color:var(--text)}.sf-fab{position:fixed;right:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:350;box-shadow:0 4px 12px #0006;-webkit-tap-highlight-color:transparent;border:none}.sf-fab-note{bottom:130px;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#60b0d0,#4090b0);font-size:18px;color:#0f0d13}.sf-fab-coach{bottom:70px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#c9a0ff,#9b59b6);font-size:22px}.sf-note-panel{position:fixed;bottom:0;left:0;right:0;max-height:50vh;background:#1a1520;border-top:2px solid #60b0d0;border-radius:12px 12px 0 0;z-index:999;display:flex;flex-direction:column;padding:12px 14px;overflow-y:auto}.sf-note-header{display:flex;align-items:center;margin-bottom:8px}.sf-note-title{font-size:14px;font-weight:600;color:#60b0d0;flex:1}.sf-x{background:none;border:none;color:#8a7a9a;font-size:18px;cursor:pointer}.sf-note-textarea{width:100%;background:#241e2e;border:1px solid #3a3540;border-radius:8px;padding:8px 12px;color:#e8e4ec;font-size:14px;outline:none;font-family:inherit;resize:none;box-sizing:border-box}.sf-note-footer{display:flex;gap:8px;margin-top:8px;align-items:center}.sf-note-status{flex:1;font-size:12px;color:#8a7a9a}.sf-note-status.ok{color:#34c468}.sf-btn-primary{background:#60b0d0;color:#0f0d13;border:none;border-radius:8px;padding:8px 16px;font-weight:600;font-size:13px;cursor:pointer;font-family:inherit}.sf-btn-primary:disabled{opacity:.7;cursor:default}.sf-btn-ghost{background:#2a2530;color:#8a7a9a;border:1px solid #3a3540;border-radius:8px;padding:8px 12px;font-size:12px;cursor:pointer;font-family:inherit}.sf-note-history{max-height:200px;overflow-y:auto;margin-top:8px;border-top:1px solid #2a2530;padding-top:8px}.sf-note-row{padding:6px 0;border-bottom:1px solid #1e1a26;font-size:12px}.sf-note-row-meta{color:#6a5a7a;font-size:10px;margin-bottom:2px}.sf-note-row-text{color:#d0ccd4}.sf-empty{color:#4a3a5a;font-size:12px;text-align:center;padding:12px}.sf-coach-panel{position:fixed;bottom:0;left:0;right:0;height:30vh;background:#1a1520;border-top:2px solid #c9a0ff;border-radius:12px 12px 0 0;z-index:300;display:flex;flex-direction:column;transition:height .2s ease}.sf-coach-panel.expanded{height:70vh}.sf-coach-drag{display:flex;justify-content:center;padding:8px 0 2px;cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent}.sf-coach-drag span{width:36px;height:4px;background:#3a3540;border-radius:2px}.sf-coach-header{display:flex;align-items:center;padding:2px 14px 6px;flex-shrink:0}.sf-coach-icon-btn{background:none;border:none;color:#c9a0ff;font-size:18px;cursor:pointer;-webkit-tap-highlight-color:transparent}.sf-coach-title{font-size:14px;font-weight:600;color:#c9a0ff;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sf-coach-ctx{padding:0 14px 4px;flex-shrink:0}.sf-coach-ctx span{font-size:11px;color:#8a7a9a;background:#241e2e;padding:2px 8px;border-radius:4px;display:inline-block}.sf-coach-scroll{flex:1;overflow-y:auto;padding:6px 14px;min-height:0}.sf-coach-newbtn{width:100%;padding:12px;background:#241e2e;border:1px solid #c9a0ff;border-radius:10px;color:#c9a0ff;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;margin-bottom:10px;-webkit-tap-highlight-color:transparent}.sf-thread-row{padding:10px 12px;background:#141018;border:1px solid #2a2530;border-radius:8px;margin-bottom:6px;cursor:pointer;-webkit-tap-highlight-color:transparent}.sf-thread-title{font-size:13px;color:#e8e4ec;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.sf-thread-meta{font-size:11px;color:#6a5a7a;display:flex;justify-content:space-between}.sf-bubble-row{margin:6px 0}.sf-bubble-row.user{text-align:right}.sf-bubble-row.bot{text-align:left}.sf-bubble{padding:6px 10px;border-radius:12px;display:inline-block;max-width:80%;font-size:13px;white-space:pre-wrap;word-break:break-word}.sf-bubble.user{background:#c9a0ff;color:#0f0d13;border-bottom-right-radius:2px}.sf-bubble.bot{background:#241e2e;color:#e8e4ec;border-bottom-left-radius:2px}.sf-coach-input-row{display:flex;gap:8px;padding:8px 14px;border-top:1px solid #2a2530;align-items:flex-end;flex-shrink:0}.sf-coach-input{flex:1;background:#241e2e;border:1px solid #3a3540;border-radius:8px;padding:8px 12px;color:#e8e4ec;font-size:14px;outline:none;font-family:inherit;resize:none;max-height:80px;line-height:1.4;box-sizing:border-box}.sf-coach-send{background:#c9a0ff;color:#0f0d13;border:none;border-radius:8px;padding:8px 14px;font-weight:600;font-size:13px;cursor:pointer;font-family:inherit;min-height:36px;-webkit-tap-highlight-color:transparent}