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var(--border-light);border-top-color:var(--primary);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite vp-spin-4c781584}@keyframes vp-spin-4c781584{to{transform:rotate(360deg)}}.vp-empty[data-v-4c781584]{text-align:center;color:var(--text-muted);padding:60px;font-size:14px}.vp-footer[data-v-4c781584]{text-align:center;color:var(--text-muted);border-top:1px solid #e2d8cf;margin-top:40px;padding:32px 20px 40px;font-size:13px}.vp-footer p[data-v-4c781584]{margin:0}.vp-footer-sub[data-v-4c781584]{opacity:.7;margin-top:8px;font-size:12px}@media (width<=860px){.vp-container[data-v-4c781584]{padding:0 16px}.vp-course-header[data-v-4c781584]{border-radius:24px;padding:24px 20px}.vp-course-info h1[data-v-4c781584]{font-size:24px}.vp-video-wrapper[data-v-4c781584]{border-radius:0}.vp-main[data-v-4c781584]{gap:16px}.vp-course-stats[data-v-4c781584]{display:none}}:root{--primary:#b45f3b;--primary-hover:#8f4a2c;--primary-bg:#b45f3b14;--secondary:#8f7a6b;--success:#2f3e2e;--success-bg:#2f3e2e14;--warning:#e8a040;--warning-bg:#e8a04014;--error:#c04040;--error-bg:#c0404014;--bg-page:#f6f3ee;--bg-card:#fff;--bg-card-hover:#fdfaf5;--bg-nav:#f6f3eeeb;--bg-input:#fff;--bg-code:#f6f3ee;--text-primary:#2c2a29;--text-secondary:#5a4d42;--text-muted:#8f7a6b;--text-inverse:#fff;--text-link:#b45f3b;--border-light:#ede5dc;--border-medium:#cabaa8;--board-bg:#e8c882;--board-border:#c4a55a;--board-line:#6b5533;--stone-black:#1a1a1a;--stone-white:#f5f5f5;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 2px 8px #0000000f;--shadow-lg:0 4px 16px #00000014;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px}[data-theme=dark]{--primary:#c07050;--primary-hover:#a05840;--primary-bg:#c070501f;--bg-page:#1e1c1a;--bg-card:#252320;--bg-card-hover:#2c2926;--bg-nav:#1e1c1af0;--bg-input:#252320;--text-primary:#e8e4dd;--text-secondary:#b0a89e;--text-muted:#7a7066;--text-inverse:#e8e4dd;--text-link:#c07050;--border-light:#3a3530;--border-medium:#504840;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 2px 8px #0006;--shadow-lg:0 4px 16px #00000080}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-page);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,Noto Serif SC,-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}#app{min-height:100vh}a{color:var(--text-link);text-decoration:none}a:hover{color:var(--primary-hover)}button{font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}