.houli-app{max-width:1200px;margin:0 auto;padding:28px 18px;font-family:Arial,Helvetica,sans-serif;color:#222;line-height:1.6}
.houli-app *{box-sizing:border-box}
.houli-app h2{margin:0 0 12px;font-size:26px;color:#17202a}
.houli-app h3{margin:0 0 7px;font-size:18px;color:#17202a}
.houli-app p{margin:0;font-size:15px;color:#555}
.ha-intro{padding:26px;background:#f7f8f9;border-radius:12px;margin-bottom:24px}
.ha-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.ha-card{padding:24px;border:1px solid #e7e7e7;border-radius:12px;background:#fff}
.ha-icon{display:inline-block;margin-bottom:12px;padding:6px 10px;background:#fff3e8;color:#f47a20;border-radius:20px;font-size:13px;font-weight:700}
.ha-tip{margin-top:26px;padding:20px 22px;border-left:4px solid #f47a20;background:#fff8f2}
@media(max-width:768px){.houli-app{padding:20px 14px}.houli-app h2{font-size:22px}.ha-grid{grid-template-columns:1fr}.ha-intro{padding:20px 16px}}