.help-toolbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:20px;padding:16px 0;background:#fff;border-bottom:1px solid var(--line)}
.help-toolbar .info-topbar{padding:0}.help-toolbar .info-topbar>span{display:none}.help-return{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:8px 14px;font-weight:600;border-radius:8px;background:#eef4ff}.help-return:hover{background:#e3edff;text-decoration:none!important}
.help-content{padding-bottom:24px}.help-content .info-intro h1{font-size:clamp(28px,3.1vw,40px);max-width:900px}.help-content .info-intro p{max-width:72ch}.tutorial-date{font-size:13px!important;color:var(--muted);margin-top:12px!important}
.help-content p{color:var(--muted);line-height:1.85;overflow-wrap:anywhere}.tutorial-section,.help-reading>h2,.help-faq>details{scroll-margin-top:116px}.tutorial-section{padding:28px 0;border-bottom:1px solid var(--line)}.tutorial-section h2,.help-reading h2{font-size:24px;line-height:1.5;max-width:900px}.tutorial-section p,.help-reading p{max-width:72ch;margin-top:14px}.help-step{display:inline-block;font-size:16px;color:var(--blue);margin-right:14px;white-space:nowrap}
.tutorial-route{padding:20px 0 8px}.tutorial-route ol{list-style:none;margin:0;padding:0;display:flex;gap:8px 20px;flex-wrap:wrap}.tutorial-route a{display:flex;align-items:center;gap:8px;min-height:44px}.tutorial-route span{color:var(--muted);font-variant-numeric:tabular-nums}.help-image{margin-top:20px;max-width:900px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#f7f9fc}.help-image summary{padding:14px 18px;min-height:48px;font-weight:600;cursor:pointer;color:var(--blue)}.help-image-content{padding:12px;background:#fff}.help-image img{display:block;width:100%;height:auto}.tutorial-figure{margin:20px 0 0;max-width:900px}.tutorial-figure figcaption{font-size:13px;line-height:1.8;color:var(--muted);margin-top:8px}.tutorial-check{margin-top:20px;padding:18px;background:#f3f7ff;max-width:900px}.tutorial-check p{margin-top:8px}.tutorial-links>p:first-of-type{display:flex;flex-wrap:wrap;gap:8px 24px}.tutorial-links a{display:inline-flex;align-items:center;min-height:44px}
.help-reading{padding:12px 0}.help-reading h2{margin:28px 0 0}.help-reading .notice{margin-top:28px;padding:20px;background:#f3f7ff;max-width:900px}.help-reading .button{display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;margin:4px 8px 4px 0;background:#e4edff;border-radius:6px;font-weight:600}
.help-faq{max-width:900px;padding-top:12px}.help-faq>details{border-bottom:1px solid var(--line)}.help-faq summary{padding:20px 0;min-height:56px;font-size:20px;font-weight:600;cursor:pointer}.help-faq summary:hover,.help-image summary:hover{color:var(--blue)}.help-answer{padding:0 0 22px}.help-answer p{max-width:72ch;margin-top:8px}.help-page summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:4px}
.field-schematic{padding:24px;border:1px solid var(--line);border-radius:10px;max-width:760px}.schematic-title{font-size:20px;font-weight:700;color:var(--ink)!important;margin:0 0 18px!important}.schematic-label{margin:18px 0 8px;font-weight:600}.schematic-input{border-radius:8px;background:#f1f5f9;padding:15px;color:var(--muted)}.schematic-area{min-height:96px}.schematic-footer{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:13px}.schematic-confirm{padding:10px 24px;border-radius:6px;background:var(--blue);color:#fff;flex-shrink:0}
@media(max-width:600px){.help-toolbar{gap:10px;padding:12px 0}.help-toolbar .info-back{min-width:156px;min-height:52px;padding:10px 16px;font-size:18px}.help-return{font-size:14px;min-height:48px;padding:8px 10px}.help-content .info-intro{padding:24px 0}.tutorial-route ol{gap:4px 16px}.tutorial-section h2,.help-reading h2{font-size:22px}.tutorial-section{padding:24px 0}.help-faq summary{font-size:18px}.help-image-content{padding:6px}.field-schematic{padding:16px}.schematic-footer{flex-direction:column;align-items:flex-start}.help-step{font-size:14px;margin-right:10px}}
@media(max-width:350px){.help-toolbar{gap:6px}.help-toolbar .info-back{min-width:144px;padding:10px 12px}.help-return{padding:8px;font-size:13px}}