*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:#f4f8fb;color:#243447;line-height:1.7}
a{color:#0496c7;text-decoration:none}
a:hover{color:#05c2f9}
.help-wrap{width:min(1100px,92%);margin:0 auto}
.help-header{background:#0b1c2c;color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.help-header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.help-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px}
.help-brand img{height:36px;width:auto}
.help-nav{display:flex;gap:18px;flex-wrap:wrap}
.help-nav a{color:#d7e6f2}
.help-nav a.active,.help-nav a:hover{color:#05c2f9}
.help-hero{padding:42px 0 18px;text-align:center}
.help-hero h1{margin:0 0 8px;font-size:34px;color:#0b1c2c}
.help-hero p{margin:0;color:#5b6b7c}
.help-filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:18px 0 28px}
.help-filters button{border:1px solid #c9d8e5;background:#fff;color:#33475b;border-radius:999px;padding:8px 16px;cursor:pointer}
.help-filters button.active,.help-filters button:hover{background:#05c2f9;border-color:#05c2f9;color:#fff}
.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:28px}
.help-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(11,28,44,.08);transition:transform .2s ease,box-shadow .2s ease}
.help-card:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(11,28,44,.12)}
.help-card a{color:inherit;display:block}
.help-card-cover{height:160px;overflow:hidden;background:#dce8f1}
.help-card-cover img{width:100%;height:100%;object-fit:cover;display:block}
.help-card-body{padding:16px 16px 18px}
.help-card-cat{display:inline-block;font-size:12px;color:#0496c7;margin-bottom:6px}
.help-card h3{margin:0 0 8px;font-size:16px;line-height:1.45;min-height:46px}
.help-card p{margin:0;font-size:13px;color:#6a7a8b;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.help-pagination{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 0 48px}
.help-pagination button{min-width:38px;height:38px;border:1px solid #c9d8e5;background:#fff;border-radius:8px;cursor:pointer;color:#33475b}
.help-pagination button.active,.help-pagination button:hover{background:#05c2f9;border-color:#05c2f9;color:#fff}
.help-pagination button:disabled{opacity:.45;cursor:not-allowed}
.help-footer{background:#0b1c2c;color:#9fb3c5;padding:22px 0;text-align:center;font-size:13px}
.help-article{padding:28px 0 50px}
.help-breadcrumb{font-size:13px;color:#6a7a8b;margin-bottom:16px}
.help-breadcrumb a{color:#6a7a8b}
.help-article h1{margin:0 0 10px;font-size:28px;line-height:1.35;color:#0b1c2c}
.help-meta{display:flex;gap:14px;flex-wrap:wrap;color:#6a7a8b;font-size:13px;margin-bottom:18px}
.help-cover{border-radius:12px;overflow:hidden;margin-bottom:22px;background:#dce8f1;max-height:420px}
.help-cover img{width:100%;max-height:420px;object-fit:cover;display:block}
.help-content p{margin:0 0 16px;font-size:15px}
.help-cta{margin:24px 0!important}
.help-cta a{display:inline-block;background:#05c2f9;color:#fff!important;padding:12px 22px;border-radius:8px;font-weight:600}
.help-cta a:hover{background:#0496c7}
.help-related{margin-top:36px;padding-top:24px;border-top:1px solid #d7e3ee}
.help-related h2{margin:0 0 12px;font-size:20px}
.help-related ul{padding-left:18px;margin:0 0 18px}
.help-related li{margin:8px 0}
.help-more-btn{display:inline-block;background:#0b1c2c;color:#fff!important;padding:10px 18px;border-radius:8px}
.home-help{padding:70px 0 80px;background:linear-gradient(180deg,#f7fbfe 0%,#eef6fb 100%)}
.home-help .section-title h1{margin-bottom:8px}
.home-help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.home-help-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(11,28,44,.08);transition:transform .2s ease}
.home-help-card:hover{transform:translateY(-4px)}
.home-help-card a{display:block;color:#243447}
.home-help-card .cover{height:150px;overflow:hidden;background:#dce8f1}
.home-help-card .cover img{width:100%;height:100%;object-fit:cover}
.home-help-card .body{padding:16px}
.home-help-card .cat{color:#0496c7;font-size:12px}
.home-help-card h3{margin:6px 0 8px;font-size:16px;line-height:1.4;min-height:44px}
.home-help-card p{margin:0;font-size:13px;color:#6a7a8b;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.home-help-more{text-align:center;margin-top:34px}
.home-help-more a{display:inline-block;background:#05c2f9;color:#fff;padding:12px 28px;border-radius:8px;font-weight:600}
.home-help-more a:hover{background:#0496c7;color:#fff}
@media (max-width:992px){
  .help-grid,.home-help-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .help-grid,.home-help-grid{grid-template-columns:1fr}
  .help-hero h1,.help-article h1{font-size:24px}
  .help-header-inner{flex-direction:column;gap:10px}
}