*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1d2733;background:#f6f8fb;line-height:1.6}
a{color:#0b6bcb}header{background:#0b3d6b;color:#fff}header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem}
.logo{font-weight:800;font-size:1.4rem;color:#fff;text-decoration:none}.logo span{color:#7fd1ff}
nav a{color:#dbeeff;margin:0 .5rem;text-decoration:none;font-size:.95rem}nav a:hover{color:#fff;text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:1rem}
.disclaimer{background:#fff4d6;border-bottom:2px solid #f0c040;text-align:center;padding:.5rem;font-weight:600;font-size:.95rem}
.layout{display:grid;grid-template-columns:1fr 280px;gap:1.5rem}@media(max-width:800px){.layout{grid-template-columns:1fr}}
main section,.card{background:#fff;border-radius:10px;padding:1.2rem 1.4rem;margin-bottom:1rem;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.hero{background:linear-gradient(135deg,#0b6bcb,#0b3d6b);color:#fff;border-radius:12px;padding:2rem}.hero a.btn{background:#7fd1ff;color:#0b3d6b}
.btn{display:inline-block;background:#0b6bcb;color:#fff;padding:.6rem 1.1rem;border-radius:8px;text-decoration:none;border:0;cursor:pointer;font-size:1rem;margin:.25rem .25rem .25rem 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.ad{border:2px dashed #9aa8b8;color:#6b7a8c;text-align:center;padding:1.5rem .5rem;border-radius:8px;background:#fafcff;margin-bottom:1rem;font-size:.85rem}
.sponsor{border:2px dashed #3aa36b;background:#f2fbf6;color:#2a6b48}
table{border-collapse:collapse;width:100%;margin:.5rem 0}th,td{border:1px solid #d6dee8;padding:.45rem;text-align:left}th{background:#eef3f9}
.ex{background:#eef7ff;border-left:4px solid #0b6bcb;padding:.7rem 1rem;margin:.8rem 0;border-radius:4px}
footer{background:#14222f;color:#c4d0dc;margin-top:2rem;font-size:.9rem}footer a{color:#9fd6ff}
.tts{position:fixed;right:1rem;bottom:1rem;z-index:9}.tts button{box-shadow:0 2px 8px rgba(0,0,0,.25)}
.q label{display:block;margin:.3rem 0}#qa-log .a{background:#f2f6fa;padding:.7rem;border-radius:8px;margin:.5rem 0}
input[type=text],textarea{width:100%;padding:.6rem;font-size:1rem;border:1px solid #c3cfdc;border-radius:6px}
.small{font-size:.85rem;color:#5a6878}