/* === SECTIONS === */
            .section {
                padding: 10px 0;
                border-bottom: 1px solid var(--border);
            }
            .section:last-child { border-bottom: none; }

            .section-head {
                display: flex;
                align-items: baseline;
                justify-content: space-between;
                gap: 8px;
                margin-bottom: 8px;
            }

            .section h2 {
                margin: 0;
                color: var(--text);
                font-size: 14px;
                font-weight: 600;
                text-transform: uppercase;
                letter-spacing: 0.04em;
            }

            .section-note {
                color: var(--text-3);
                font-size: 13px;
            }

            /* === DROPZONE === */
            .dropzone {
                position: relative;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 6px;
                min-height: 70px;
                padding: 12px;
                border: 1px dashed var(--border-hover);
                border-radius: var(--radius-sm);
                background: var(--bg-input);
                cursor: pointer;
                transition: border-color 0.15s, background 0.15s;
            }

            .dropzone:hover, .dropzone.is-dragging {
                border-color: var(--accent);
                background: var(--bg-hover);
            }

            .dropzone input {
                position: absolute;
                inset: 0;
                opacity: 0;
                cursor: pointer;
            }

            .dropzone > span {
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 4px;
            }

            .drop-icon {
                width: 24px;
                height: 24px;
                display: flex;
                align-items: center;
                justify-content: center;
                border-radius: 50%;
                background: var(--accent-lo);
                color: #fff;
                font-size: 16px;
            }

            .drop-title { color: var(--text); font-size: 14px; font-weight: 600; }
            .drop-hint { color: var(--text-3); font-size: 13px; }

            /* === FAN VARIANTS === */
            .fan-variants {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 4px;
            }

            .fan-variant {
                display: block;
                padding: 7px 4px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                background: var(--bg-elevated);
                cursor: pointer;
                text-align: center;
                transition: border-color 0.15s, background 0.15s;
            }

            .fan-variant:hover { border-color: var(--border-hover); background: var(--bg-hover); }

            .fan-variant.active {
                border-color: var(--accent);
                background: rgba(0, 180, 216, 0.08);
                box-shadow: 0 0 8px var(--accent-glow);
            }

            .fan-variant strong, .fan-variant small { display: block; }
            .fan-variant strong { color: var(--text); font-family: "STKaiti", "KaiTi", serif; font-size: 15px; }
            .fan-variant small { color: var(--text-3); font-size: 12px; }

            .fan-variant.active strong { color: var(--accent); }

            /* === BLADE COUNT === */
            .blade-count-control { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
            .blade-count-control[hidden] { display: none; }
            .blade-count-head { display: flex; justify-content: space-between; color: var(--text-2); font-size: 13px; }
            .blade-count-head strong { color: var(--text); font-size: 13px; }

            .blade-count-options {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 3px;
                margin-top: 5px;
            }

            .blade-count-option {
                padding: 5px 3px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: var(--bg-elevated);
                cursor: pointer;
                text-align: center;
                transition: border-color 0.15s, background 0.15s;
            }

            .blade-count-option:hover { border-color: var(--border-hover); background: var(--bg-hover); }

            .blade-count-option.active {
                border-color: var(--accent);
                background: rgba(0, 180, 216, 0.1);
                box-shadow: 0 0 6px var(--accent-glow);
            }

            .blade-count-option strong, .blade-count-option small { display: block; }
            .blade-count-option strong { color: var(--text); font-size: 14px; }
            .blade-count-option small { color: var(--text-3); font-size: 11px; }
            .blade-count-option.active strong { color: var(--accent); }
            .blade-count-help { margin: 5px 0 0; color: var(--text-3); font-size: 12px; line-height: 1.4; }

            /* === BLADE PANEL === */
            .blade-panel {
                margin-bottom: 8px;
                padding: 8px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                background: var(--bg-input);
            }
            .blade-panel[hidden] { display: none; }
            .blade-panel-head { display: flex; justify-content: space-between; color: var(--text-2); font-size: 13px; }
            .blade-panel-head strong { color: var(--text); font-size: 13px; }

            .blade-grid {
                display: grid;
                grid-template-columns: repeat(6, 1fr);
                gap: 3px;
                margin-top: 5px;
            }

            .blade-button {
                height: 28px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: var(--bg-elevated);
                color: var(--text-2);
                font-family: "Cascadia Code", monospace;
                font-size: 13px;
                cursor: pointer;
                position: relative;
                transition: border-color 0.15s, background 0.15s;
            }

            .blade-button:hover { border-color: var(--border-hover); background: var(--bg-hover); }

            .blade-button.assigned::after {
                content: '';
                position: absolute;
                top: 3px;
                right: 3px;
                width: 4px;
                height: 4px;
                border-radius: 50%;
                background: var(--accent);
            }

            .blade-button.active {
                border-color: var(--accent-lo);
                background: var(--accent-lo);
                color: #fff;
            }

            .blade-button.active::after { background: #fff; }
            .blade-help { margin: 5px 0 0; color: var(--text-3); font-size: 12px; }

            /* === FILE CHIP === */
            .file-chip {
                display: none;
                margin-top: 6px;
                padding: 6px 8px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: var(--bg-input);
                color: var(--accent);
                font-size: 13px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }
            .file-chip.show { display: block; }