.houli-backup{max-width:1200px;margin:0 auto;padding:28px 18px;font-family:Arial,Helvetica,sans-serif;line-height:1.65;color:#222}
.houli-backup *{box-sizing:border-box}
.houli-backup h2{margin:0 0 12px;font-size:26px;color:#17202a}
.houli-backup h3{margin:0 0 6px;font-size:17px;color:#17202a}
.houli-backup p{margin:0;font-size:15px;color:#555}
.hb-intro{padding:26px;background:#f7f8f9;border-radius:12px}
.hb-highlight{padding:20px 22px;margin:25px 0;background:#fff8f2;border-left:4px solid #f47a20}
.hb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0 30px}
.hb-card{padding:20px;border:1px solid #e7e7e7;border-radius:10px}
.hb-num{display:block;margin-bottom:8px;color:#f47a20;font-weight:700;font-size:13px}
.hb-note{margin-top:25px;padding:22px;background:#17202a;border-radius:12px;color:#fff}
.hb-note h2,.hb-note p{color:#fff}.hb-note p{opacity:.82}
@media(max-width:768px){.houli-backup{padding:20px 14px}.houli-backup h2{font-size:22px}.hb-grid{grid-template-columns:1fr}.hb-intro,.hb-note{padding:20px 16px}}