.workspace-layout{grid-template-columns:minmax(250px,290px) minmax(0,1fr)}
.sections{box-sizing:border-box;width:auto;position:sticky;top:68px;align-self:start;height:calc(100vh - 68px);overflow-y:auto;padding:24px 16px}
.section-button{font-size:14px;line-height:1.4;padding:12px 14px}
.workarea{min-width:0;padding:32px clamp(26px,3vw,48px) 70px}
.work-head{gap:24px}.work-head h1{font-size:28px;line-height:1.2}.official-guide{max-width:1400px}
@media(max-width:1100px){.workspace-layout{grid-template-columns:240px minmax(0,1fr)}.sections{width:auto}.workarea{padding:28px 24px}.guide-list{grid-template-columns:1fr}}
@media(max-width:720px){.workspace-layout{display:block}.sections{position:static;width:auto;height:auto;overflow-x:auto;overflow-y:hidden}.workarea{padding:20px 14px}.work-head{align-items:flex-start}.work-head h1{font-size:24px}}