.help-main{min-height:100vh;background:#f5f7fa;padding:24px 0}.help-container{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;flex-wrap:wrap;gap:24px}.help-breadcrumb{width:100%;font-size:14px;color:#666;margin-bottom:8px}.help-breadcrumb a{color:#1a73e8;text-decoration:none}.help-breadcrumb a:hover{text-decoration:underline}.help-breadcrumb .breadcrumb-sep{margin:0 8px;color:#999}.help-breadcrumb .breadcrumb-current{color:#1a1a1a}.help-sidebar{width:220px;flex-shrink:0;background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px rgba(0,0,0,.06);align-self:flex-start;position:sticky;top:24px}.help-nav-title{font-size:18px;font-weight:600;color:#1a1a1a;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid #1a73e8}.help-nav{list-style:none;padding:0;margin:0}.help-nav li{margin-bottom:4px}.help-nav-link{display:block;padding:10px 12px;font-size:16px;color:#666;text-decoration:none;border-radius:8px;transition:all .2s;line-height:1.6}.help-nav-link:hover{background:#f5f7fa;color:#1a73e8}.help-content{flex:1;min-width:0;background:#fff;border-radius:12px;padding:32px;box-shadow:0 1px 3px rgba(0,0,0,.06)}.help-page-title{font-size:24px;font-weight:700;color:#1a1a1a;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid #eee}.help-section{margin-bottom:28px}.help-section h2{font-size:20px;font-weight:600;color:#1a1a1a;margin-bottom:12px;padding-left:12px;border-left:3px solid #1a73e8}.help-section h3{font-size:18px;font-weight:600;color:#1a1a1a;margin:16px 0 8px}.help-section p{font-size:16px;line-height:1.8;color:#444;margin-bottom:12px}.help-section ol,.help-section ul{padding-left:24px;margin-bottom:12px}.help-section li{color:#444;margin-bottom:6px}.help-section li,.help-tip{font-size:16px;line-height:1.8}.help-tip{background:#e8f0fe;border-radius:8px;padding:16px 20px;margin:16px 0;color:#1a5ab8}.help-tip:before{content:"💡 "}.help-warning{background:#fff3e0;border-radius:8px;padding:16px 20px;margin:16px 0;font-size:16px;line-height:1.8;color:#bf6900}.help-warning:before{content:"⚠️ "}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:12px;overflow:hidden}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:#fafafa;border:none;font-size:16px;font-weight:600;color:#1a1a1a;cursor:pointer;text-align:left;line-height:1.6;transition:background .2s}.faq-question:hover{background:#f0f4f8}.faq-question .arrow{font-size:12px;transition:transform .3s;flex-shrink:0;margin-left:12px}.faq-question.open .arrow{transform:rotate(180deg)}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease}.faq-answer.show{padding:16px 20px;max-height:500px}.faq-answer p{font-size:16px;line-height:1.8;color:#666}@media (max-width:768px){.help-container{padding:0 16px}.help-sidebar{width:100%;position:static;display:flex;flex-wrap:wrap;gap:8px;padding:16px}.help-nav-title{width:100%;margin-bottom:8px}.help-nav{display:flex;flex-wrap:wrap;gap:8px}.help-nav li{margin-bottom:0}.help-nav-link{padding:8px 16px;font-size:14px;background:#f5f7fa;border-radius:20px}.help-content{padding:20px}.help-page-title{font-size:20px}}.help-card{display:block;padding:24px;border:1px solid #e8e8e8;border-radius:12px;text-decoration:none;color:inherit;transition:all .2s;background:#fff}.help-card:hover{border-color:#1a73e8;box-shadow:0 2px 12px rgba(26,115,232,.12)}