*{box-sizing:border-box} body{margin:0;font-family:Arial,'Noto Sans Thai',sans-serif;background:#fff8e8;color:#0b2b55} .topbar{height:90px;display:flex;align-items:center;justify-content:space-between;padding:16px 28px}.brand{font-size:42px;font-weight:900;letter-spacing:.5px}.brand b{color:#ef4f7d}.circle{width:58px;height:58px;border-radius:50%;border:0;background:#ff5d8c;color:white;font-size:32px;text-decoration:none;display:grid;place-items:center;box-shadow:0 6px 14px #0002}.home{background:#238be8}.layout{display:grid;grid-template-columns:310px minmax(320px,760px);gap:24px;max-width:1120px;margin:0 auto 30px;padding:0 18px}.panel{background:white;border-radius:22px;box-shadow:0 6px 18px #0001;overflow:hidden;margin-bottom:16px}.panel h2{margin:0;padding:14px 18px;background:#1688df;color:white;font-size:22px}.group{display:flex;gap:12px;align-items:center;padding:16px 18px;text-decoration:none;color:#0b2b55;font-size:22px;border-bottom:1px solid #eee}.group.active{background:#fff0a8}.group-name{flex:1;font-weight:800}.count{background:#eee;border-radius:20px;padding:4px 10px;color:#777}.scroll-list{height:520px;overflow-y:auto;padding:8px}.wordrow{display:grid;grid-template-columns:28px 42px 1fr 42px;align-items:center;gap:8px;padding:9px;border-radius:14px;text-decoration:none;color:#0b2b55;border-bottom:1px solid #eee}.wordrow.active{background:#fff0a8;outline:2px solid #ffd24a}.wordrow img{width:38px;height:38px;object-fit:contain}.wordrow b{font-size:21px}.mini-sound{border:0;background:white;font-size:22px}.card{background:white;border-radius:28px;padding:28px;box-shadow:0 8px 25px #0002}.card-head{display:flex;justify-content:space-between;align-items:center}.badge{background:#1688df;color:white;border-radius:18px;padding:8px 28px;font-size:20px;font-weight:800}.heart{font-size:44px;color:#ef4f7d}.picture{height:380px;background:#dff6ff;border-radius:30px;display:grid;place-items:center;margin:20px 0}.picture img{max-height:330px;max-width:90%}.letters{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}.letter{border:0;background:white;border-radius:22px;min-height:120px;box-shadow:0 4px 14px #0001;font-size:28px}.letter b{display:block;font-size:76px}.l0 b{color:#ef4f7d}.l1 b{color:#ff961b}.l2 b{color:#1688df}.big-sound{width:100%;border:0;border-radius:24px;background:#fff;padding:22px;box-shadow:0 4px 16px #0002;display:grid;grid-template-columns:120px 1fr;align-items:center}.speaker{grid-row:1/3;font-size:70px;background:#1688df;color:white;border-radius:50%;width:105px;height:105px;display:grid;place-items:center}.word{font-size:78px;font-weight:900}.thai{font-size:42px;color:#ef4f7d;font-weight:800}.bottom-nav{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:18px;margin-top:26px}.bottom-nav a,.bottom-nav button{border:0;border-radius:18px;padding:20px;text-align:center;text-decoration:none;font-size:26px;font-weight:800;background:#e8f8ff;color:#1264a6}.bottom-nav .next,.bottom-nav button{background:#86d247;color:white}.hint{text-align:center;color:#7d6a41;font-size:18px}@media(max-width:760px){.topbar{height:70px;padding:10px 14px}.brand{font-size:30px}.circle{width:48px;height:48px}.layout{display:block}.sidebar{display:none}.show-list .sidebar{display:block}.card{padding:16px}.picture{height:260px}.letters{gap:8px}.letter{min-height:90px}.letter b{font-size:52px}.word{font-size:56px}.thai{font-size:34px}.big-sound{grid-template-columns:90px 1fr}.speaker{width:76px;height:76px;font-size:48px}.bottom-nav a,.bottom-nav button{font-size:19px;padding:14px}}