:root{--orange:#c2410c;--amber:#f59e0b;--teal:#0f766e;--bg:#fffaf0;--ink:#1f2937;--muted:#64748b;--card:#ffffff;--line:#fed7aa}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:linear-gradient(180deg,#fff7ed,#f0fdfa)}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 6vw}.brand{display:flex;align-items:center;gap:12px;min-width:220px}.brand img{width:58px;height:58px;border-radius:14px;object-fit:cover;box-shadow:0 4px 15px #0002}.brand strong{display:block;color:var(--orange);font-size:1.15rem}.brand span{font-size:.9rem;color:var(--teal)}nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}nav a{color:var(--ink);text-decoration:none;padding:8px 10px;border-radius:999px;font-size:.95rem}nav a:hover,nav a.active{background:#ffedd5;color:var(--orange)}main{max-width:1120px;margin:0 auto;padding:34px 22px 58px}.hero{display:grid;grid-template-columns:1.4fr .8fr;gap:24px;align-items:center}.panel,.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 10px 30px #7c2d120d}.hero h1{font-size:clamp(2rem,5vw,4rem);line-height:1.05;margin:0 0 16px;color:var(--orange)}.subtitle{font-size:1.25rem;color:var(--teal);margin:0 0 18px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:22px}h1,h2,h3{color:var(--orange)}h2{margin-top:30px}.nl{color:#334155;border-left:4px solid #99f6e4;padding-left:12px;margin-top:8px}.zh{font-weight:650}.badge{display:inline-block;background:#ccfbf1;color:#115e59;padding:5px 10px;border-radius:999px;font-size:.86rem;margin:4px 6px 4px 0}.btn{display:inline-flex;align-items:center;gap:8px;margin:8px 8px 8px 0;background:var(--teal);color:white;text-decoration:none;border:0;border-radius:12px;padding:10px 14px;cursor:pointer;font-size:1rem}.btn.alt{background:var(--orange)}.table{width:100%;border-collapse:collapse;background:white;border-radius:16px;overflow:hidden}.table th,.table td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.table th{background:#ffedd5;color:#9a3412}.lesson-layout{display:grid;grid-template-columns:260px 1fr;gap:22px}.lesson-menu{position:sticky;top:100px;align-self:start}.lesson-menu a{display:block;text-decoration:none;color:var(--ink);padding:10px 12px;border-radius:12px}.lesson-menu a:hover{background:#ffedd5}.dialogue{border:1px solid var(--line);border-radius:20px;background:white;margin:16px 0;padding:18px}.line{display:grid;grid-template-columns:32px 1fr auto;gap:10px;align-items:center;padding:8px 0;border-bottom:1px dashed #fed7aa}.line:last-child{border-bottom:0}.speaker{font-weight:700;color:var(--teal)}.dutch{font-size:1.06rem}.chinese{color:var(--muted);margin-top:3px}.play{border:0;border-radius:999px;background:#ffedd5;color:#9a3412;padding:8px 10px;cursor:pointer}.notice{background:#ecfeff;border:1px solid #67e8f9;color:#155e75;border-radius:18px;padding:16px;margin:18px 0}footer{text-align:center;color:#64748b;padding:24px;border-top:1px solid var(--line);background:#fff}@media(max-width:780px){.site-header{display:block}.brand{margin-bottom:12px}.hero,.lesson-layout{grid-template-columns:1fr}.lesson-menu{position:static}.line{grid-template-columns:28px 1fr}.play{grid-column:2}}