TD-H9 10W Bluetooth APRS GPS Radio Handheld （Pre-Sale）

/* Reset & Base */ * { box-sizing: border-box; margin: 0; padding: 0; } body { font-family: Arial, sans-serif; color: #333; line-height: 1.6; } img, iframe { display: block; max-width: 100%; height: auto; } /* Container */ .container { max-width: 1200px; margin: 0 auto; padding: 20px; } /* Responsive Video */ .video-container { position: relative; width: 100%; padding-bottom: 56.25%; /* 16:9 */ background: #000; margin-bottom: 20px; } .video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; } /* Features Text */ .features h4 { font-size: 2.5rem; /* doubled from 1.75rem */ margin-bottom: 5px; } .features p { font-size: 2rem; /* doubled from 1rem */ margin-bottom: 5px; } /* Feature Images */ .feature-images { display: grid; gap: 24px; margin: 24px 0; } /* Cards Grid */ .cards { display: grid; gap: 24px; margin-bottom: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); } .card { background: