.catalog-section{margin-top:26px}.catalog-section-head{flex-wrap:wrap;align-items:baseline;gap:10px;display:flex}.catalog-section-title{letter-spacing:.02em;font-family:Zen Maru Gothic,sans-serif;font-size:21px;font-weight:700}.catalog-section-count{color:var(--faint);font-size:14px;font-weight:500}.catalog-section-sub{color:var(--muted);margin-top:4px;font-size:14px;line-height:1.7}.catalog-card-badge{color:var(--mustard-ink);background:var(--mustard-tint);border:1.5px solid var(--mustard);border-radius:999px;align-self:flex-start;align-items:center;margin-top:6px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.catalog-section .catalog-list{margin-top:12px}.prep-notice{background:var(--green-tint);border-radius:var(--r-card);flex-direction:column;gap:6px;margin-top:18px;padding:18px 20px;display:flex}.prep-notice-title{color:var(--green);font-family:Zen Maru Gothic,sans-serif;font-size:18px;font-weight:700}.prep-notice-text{color:var(--muted);font-size:15px;line-height:1.7}.detail-provisional{background:var(--surface-2);border:1.5px dashed var(--btn-line);border-radius:var(--r-btn);color:var(--muted);margin-top:12px;padding:16px 18px;font-size:16px;line-height:1.7}.detail-interaction{margin-top:10px;font-size:17px;line-height:1.8}.howto-learning{flex-direction:column;gap:16px;margin-top:12px;display:flex}.howto-block>p{margin:0;font-size:17px;line-height:1.8}.howto-label{color:var(--green);margin:0 0 6px;font-family:Zen Maru Gothic,sans-serif;font-size:16px;font-weight:700}.howto-list{flex-direction:column;gap:6px;margin:0;padding-left:1.25em;display:flex}.howto-list li{font-size:16px;line-height:1.7}.howto-keyboard{color:var(--muted);margin:8px 0 0;font-size:14px;line-height:1.7}.filter-groups{flex-direction:column;gap:10px;margin-top:14px;display:flex}.filter-group{flex-direction:column;gap:2px;display:flex}.filter-group-label{color:var(--muted);font-size:13px;font-weight:700}.filter-group .chip-row{margin-top:4px}.filter-group .chip{height:44px;padding:0 14px;font-size:14px}.filter-actions{margin-top:10px}.detail-example{margin-top:18px}.detail-example h2{color:var(--green);font-family:Zen Maru Gothic,sans-serif;font-size:19px;font-weight:700}.detail-example-board{-webkit-overflow-scrolling:touch;max-width:100%;margin-top:10px;overflow-x:auto}.detail-example-note{color:var(--muted);margin-top:8px;font-size:14px;line-height:1.7}.start-bar-generic .start-bar-body{align-items:center;gap:10px;min-width:0;display:flex}.start-bar-generic .start-bar-mark{flex:none}.start-bar-generic .start-bar-body-text{min-width:0}.start-bar-generic .start-bar-retry{flex:none;min-height:44px}@media (min-width:768px){.catalog-section{margin-top:36px}.catalog-section-title{font-size:24px}}.catalog-op-row{-webkit-overflow-scrolling:touch;scrollbar-width:none;scroll-snap-type:x proximity;gap:8px;margin-top:14px;padding-bottom:4px;display:flex;overflow-x:auto}.catalog-op-row::-webkit-scrollbar{display:none}.catalog-op-row .chip{scroll-snap-align:start;flex:none}.catalog-op-row{-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 22px),#0000);mask-image:linear-gradient(90deg,#000 calc(100% - 22px),#0000)}@media (min-width:768px){.catalog-op-row{flex-wrap:wrap;overflow-x:visible;-webkit-mask-image:none;mask-image:none}}.catalog-selected{flex-wrap:wrap;gap:8px;display:flex}.catalog-selected .chip{white-space:normal;height:auto;min-height:44px}.catalog-result-count{color:var(--muted);margin-top:16px;font-size:14px}.catalog-live-region{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.catalog-sheet-trigger{border:1.5px solid var(--line);background:var(--surface);cursor:pointer;width:100%;min-height:48px;color:inherit;border-radius:16px;align-items:center;gap:8px;margin-top:12px;padding:12px 16px;font-size:16px;font-weight:700;display:flex}.catalog-sheet-trigger:after{content:"▾";color:var(--muted);margin-left:auto}.catalog-sheet-trigger:focus-visible{outline:2px solid var(--green);outline-offset:3px}.catalog-sheet-label{flex:none}.catalog-sheet-count{background:var(--green-tint);min-width:22px;height:22px;color:var(--green);border-radius:999px;place-items:center;padding:0 6px;font-size:13px;font-weight:700;display:inline-grid}.catalog-sheet-dialog{color:inherit;background:0 0;border:0;max-width:100%;max-height:100%;padding:0}.catalog-sheet-dialog::backdrop{background:#14181673}.catalog-sheet-dialog{width:100%;margin:0 auto;position:fixed;inset:auto 0 0}.catalog-sheet-panel{background:var(--surface);border-radius:20px 20px 0 0;flex-direction:column;gap:12px;max-height:82vh;padding:8px 16px 20px;display:flex;overflow-y:auto;box-shadow:0 -8px 28px #0000002e}.catalog-sheet-head{background:var(--surface);align-items:center;gap:8px;padding-top:8px;display:flex;position:sticky;top:0}.catalog-sheet-title{margin:0;font-family:Zen Maru Gothic,sans-serif;font-size:18px;font-weight:700}.catalog-sheet-close{width:44px;height:44px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:12px;flex:none;margin-left:auto;font-size:26px;line-height:1}.catalog-sheet-close:focus-visible{outline:2px solid var(--green);outline-offset:2px}.catalog-sheet-actions{background:var(--surface);border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding-top:8px;display:flex;position:sticky;bottom:0}.catalog-sheet-apply{background:var(--green);color:#fff;cursor:pointer;border:0;border-radius:999px;min-height:48px;padding:0 22px;font-size:16px;font-weight:700}.catalog-sheet-actions .text-button:disabled{opacity:.45;cursor:default}@media (min-width:768px){.catalog-sheet-dialog{width:min(560px,100% - 48px);margin:auto;inset:0}.catalog-sheet-panel{border-radius:20px;max-height:min(80vh,640px);box-shadow:0 12px 40px #00000038}}.archive-action{flex-wrap:wrap;align-items:center;gap:10px;display:inline-flex}.archive-status{white-space:nowrap;font-size:13px;font-weight:700}.archive-status.is-solved{color:var(--ok)}.archive-status.is-revealed{color:var(--muted);font-weight:500}.archive-status.is-progress{color:var(--faint);font-weight:500}.detail-aside-start .diff-button:has(.diff-fallback){flex-direction:column;gap:2px;height:auto;min-height:52px;padding:8px 12px}@media (min-width:768px){.detail-aside-start .diff-button:has(.diff-fallback){flex-direction:column;gap:2px;height:auto;min-height:52px;padding:8px 12px}}