:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px 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#ddd;border-radius:6px;margin-bottom:12px;padding:14px 16px}.lesson-item[data-v-558e6e4f]:hover{background:#f9f9f9}.lesson-title-line[data-v-558e6e4f]{margin-bottom:8px;font-size:16px}.lesson-meta[data-v-558e6e4f]{color:#666;margin-bottom:6px;font-size:14px}.preview[data-v-558e6e4f]{color:#666;margin-top:6px;font-size:14px;line-height:1.6}.date[data-v-558e6e4f]{color:#999;margin-top:6px;font-size:13px}.detail-modal[data-v-558e6e4f]{z-index:1000;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content[data-v-558e6e4f]{background:#fff;border-radius:8px;width:100%;max-width:min(90%,1400px);max-height:90%;padding:20px;position:relative;overflow-y:auto}.detail-sections[data-v-558e6e4f]{margin-top:20px}.close-btn[data-v-558e6e4f]{z-index:1001;background:#f44;position:fixed;top:20px;right:20px}@media (width<=1280px){.app-shell[data-v-558e6e4f]{width:min(94vw,1180px);padding:20px 0 48px}.top-section[data-v-558e6e4f]{flex-direction:column;align-items:stretch}.form-card[data-v-558e6e4f],.result-card[data-v-558e6e4f],.library-card[data-v-558e6e4f]{max-width:100%}}@media (width<=768px){.app-shell[data-v-558e6e4f]{width:100%;padding:14px 14px 36px}.page-title[data-v-558e6e4f]{font-size:28px}.top-section[data-v-558e6e4f]{flex-direction:column;gap:16px}}