:root{--brand-purple: #3a1c71;--brand-raspberry: #d1294f;--brand-apricot: #ffaf7b;--primary-dim: #a21136;--primary-default: #e82154;--primary-soft: #f17494;--primary-light: #fdf4f6;--secondary-dim: #131c20;--secondary-default: #273940;--secondary-pale: #679099;--secondary-soft: #c0ced1;--secondary-pastel: #e4eaeb;--secondary-light: #f1f3f3;--success-default: #08c5a3;--success-deep: #057662;--success-light: #def9f4;--waiting-default: #2176ae;--waiting-deep: #1a5e8b;--waiting-light: #edf5f8;--warning-default: #ffd166;--warning-deep: #b18f3d;--warning-light: #fff6e0;--danger-default: #a5243d;--danger-light: #fdf4f6;--gray-100: #e8eaed;--gray-500: #8a95a5;--gray-800: #393e44;--gray-900: #1e2124;--fg-1: #273940;--fg-2: #393e44;--fg-3: #8a95a5;--fg-muted: #919da1;--bg-page: #ffffff;--bg-muted: #f1f3f3;--bg-input: #f3f4f6;--border-hairline: #f1f3f3;--border-default: #e8eaed;--border-focus: #e82154;--tab-selected-fg: #5f32b2;--tab-selected-bg: #f0ecf8;--radius-md: 8px;--radius-lg: 14px;--radius-xl: 16px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04), 0 0 1px rgba(0, 0, 0, .1);--shadow-card: 0 0 1px rgba(0, 0, 0, .3), 0 2px 30px rgba(0, 0, 0, .08), 0 0 15px rgba(0, 0, 0, .02);--shadow-nav: 0 0 1px rgba(0, 0, 0, .3), 0 2px 10px rgba(0, 0, 0, .06), 0 0 5px rgba(0, 0, 0, .02);--ease-out: cubic-bezier(.2, .8, .2, 1);--t-fast: .12s;--t-base: .18s;--font-ui: "IBM Plex Sans Thai", "Inter", system-ui, sans-serif;--font-body: "IBM Plex Sans Thai Looped", "IBM Plex Sans Thai", system-ui, sans-serif;--font-code: "IBM Plex Mono", "Consolas", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-body);color:var(--fg-1);background:var(--bg-page);font-size:16px;line-height:24px}h1,h2,h3,h4,h5,button,.ui{font-family:var(--font-ui)}.nav{position:sticky;top:0;z-index:20;background:#fffc;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:var(--shadow-nav)}.nav__inner{max-width:1200px;margin:0 auto;padding:8px 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var(--border-hairline);overflow:hidden}.card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border-hairline);min-height:54px}.card__title{display:flex;align-items:center;gap:8px;font-family:var(--font-ui);font-weight:600;font-size:16px;color:var(--fg-1);white-space:nowrap}.card__actions{display:flex;align-items:center;gap:8px}.card__tools{display:flex;align-items:center;gap:8px;margin-left:auto}.editor-wrap .cm-editor{font-size:15px;background:#fff}.editor-wrap .cm-editor.cm-focused{outline:none}.editor-wrap .cm-scroller{font-family:var(--font-code);line-height:1.7;min-height:420px}.editor-wrap .cm-gutters{background:#fff;border-right:1px solid var(--border-hairline);color:var(--fg-3)}.editor-wrap .cm-activeLine,.editor-wrap .cm-activeLineGutter{background:#2739400b}.editor-wrap .cm-selectionBackground{background:#e8215424!important}.editor-wrap .cm-content ::selection{background:#e8215424}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:8px 12px;border-radius:var(--radius-md);border:0;cursor:pointer;font-family:var(--font-ui);font-weight:500;font-size:16px;white-space:nowrap;transition:background var(--t-fast) var(--ease-out),color var(--t-fast) var(--ease-out)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--primary{background:var(--primary-default);color:#fff}.btn--primary:hover:not(:disabled){background:var(--primary-dim)}.btn--secondary{background:var(--secondary-light);color:var(--secondary-default)}.btn--secondary:hover:not(:disabled){background:var(--secondary-pastel)}.btn--ghost{background:transparent;color:var(--fg-2)}.btn--ghost:hover:not(:disabled){background:var(--secondary-light)}.btn--icon{width:40px;height:40px;padding:0}.btn--head{height:40px;padding:8px 16px;margin-left:4px}.btn 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