.help-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:24px;align-items:start}.help-sidebar{position:sticky;top:108px;padding:24px}.help-sidebar h2{margin:0 0 18px;font-size:21px}.help-sidebar h3{margin:20px 0 8px;color:#469ff5;font-size:13px;letter-spacing:1px}.help-sidebar a{display:block;padding:8px 10px;border-radius:7px;color:#91a1b4;font-size:14px}.help-sidebar a:hover{background:#0d263e;color:#53adff}.help-content{display:grid;gap:18px}.help-article{padding:32px}.help-article h2{margin:0 0 8px;font-size:28px}.help-article h3{margin:28px 0 8px;font-size:21px}.help-article p,.help-article li{color:#a4b1c1;line-height:1.9}.help-date{margin:0 0 22px!important;color:#71849a!important;font-size:13px}.help-rule{height:1px;margin:20px 0;background:#1d3348}.ios-options{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}.ios-option{padding:20px;border:1px solid #27415b;border-radius:12px;background:#081a2b}.ios-option small{color:#55adff}.ios-option strong{display:block;margin:7px 0;font-size:20px}.ios-option span{color:#8e9eb1;line-height:1.7;font-size:14px}.step-copy{margin:24px 0 12px;font-size:17px}.tutorial-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tutorial-images img{width:100%;height:auto;border:1px solid #263d55;border-radius:12px;background:#edf0f6}.help-note{padding:16px 18px;border-left:3px solid #1688ff;border-radius:0 9px 9px 0;background:#0a2035;color:#aebaca;line-height:1.8}.download-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}.download-list a{padding:16px;border:1px solid #29415a;border-radius:10px;background:#081a2a;font-weight:800}.download-list a:hover{border-color:#1688ff}.back-top{display:inline-block;margin-top:18px;color:#4caaff;font-weight:800}@media(max-width:820px){.help-layout{grid-template-columns:1fr}.help-sidebar{position:static;display:flex;gap:8px;overflow-x:auto;padding:14px}.help-sidebar h2,.help-sidebar h3{display:none}.help-sidebar a{flex:0 0 auto;white-space:nowrap;background:#0a2035}.help-article{padding:24px}.tutorial-images{grid-template-columns:1fr}}@media(max-width:520px){.ios-options,.download-list{grid-template-columns:1fr}.help-article h2{font-size:24px}}