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var(--ppt-card-border,#e5e7eb);align-items:center;gap:.75rem;padding:.85rem 1.1rem;display:flex}.ppt-card__badge{letter-spacing:.08em;color:#fff;background:#ea4335;border-radius:999px;padding:.2rem .55rem;font-size:.75rem;font-weight:700}.ppt-card__title{color:var(--ppt-card-title,#111827);flex:1;font-weight:600}.ppt-card__actions{align-items:center;gap:.35rem;display:flex}.ppt-card__icon-button{width:32px;height:32px;color:var(--ppt-card-icon,#6b7280);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;transition:all .2s;display:inline-flex}.ppt-card__icon-button:hover:not(:disabled){border-color:var(--ppt-card-border,#e5e7eb);color:var(--ppt-card-icon-hover,#111827);background:#0f172a0f}.ppt-card__icon-button:disabled{opacity:.6;cursor:default}.ppt-card__icon-button svg{width:16px;height:16px}.ppt-card__spinner{animation:1s linear infinite spin}.ppt-card__body{color:var(--ppt-card-text,#111827);padding:.9rem 1.1rem 1.1rem}.ppt-thumbnails{scroll-snap-type:x mandatory;flex-wrap:nowrap;gap:1rem;width:100%;padding-bottom:.5rem;display:flex;overflow-x:auto}.ppt-thumbnail{aspect-ratio:16/9;border:1px solid var(--ppt-card-border,#e5e7eb);scroll-snap-align:start;background:#fff;border-radius:12px;flex:none;width:680px;position:relative;overflow:hidden;box-shadow:0 12px 24px #0f172a1f}.ppt-thumbnail__list{color:#4b5563;margin:0;padding-left:.9rem;font-size:.6rem;line-height:1.2;position:absolute;inset:8px}.ppt-thumbnail__shape-element,.ppt-thumbnail__text-element{backface-visibility:hidden;position:absolute;overflow:hidden;transform:translateZ(0)}.ppt-thumbnail__text-element{white-space:pre-wrap;text-overflow:ellipsis;max-width:100%;max-height:100%;padding:1px;font-size:10px;line-height:1.2}:root.dark .ppt-card,[data-theme=dark] .ppt-card{--ppt-card-bg:#262626;--ppt-card-border:#2f2f2f;--ppt-card-header-bg:#232323;--ppt-card-title:#f9fafb;--ppt-card-text:#e5e7eb;--ppt-card-icon:#9ca3af;--ppt-card-icon-hover:#f9fafb;box-shadow:0 18px 40px #00000073}:is(:root.dark,[data-theme=dark]) .ppt-thumbnail__frame{background:#1f1f1f;box-shadow:0 12px 24px #00000080}:is(:root.dark,[data-theme=dark]) .ppt-thumbnail__title{color:#f9fafb}:root.dark .ppt-thumbnail__list,[data-theme=dark] .ppt-thumbnail__list{color:#cbd5f5}:root.dark .ppt-thumbnail,[data-theme=dark] .ppt-thumbnail{background:#1f1f1f;box-shadow:0 12px 24px #00000080}.writing-skeleton{flex-direction:column;gap:.55rem;display:flex}.writing-skeleton__line{background:linear-gradient(90deg,#cbd5e159 0%,#94a3b899 50%,#cbd5e159 100%) 0 0/200% 100%;border-radius:999px;height:10px;animation:1.4s ease-in-out infinite writingSkeletonShimmer}.writing-skeleton__line--short{width:70%}.writing-skeleton__line--subject{width:60%;height:12px}@keyframes writingSkeletonShimmer{0%{background-position:0%}to{background-position:200%}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}:root.dark .writing-card,[data-theme=dark] .writing-card{--writing-card-bg:#262626;--writing-card-border:#2f2f2f;--writing-card-header-bg:#232323;--writing-card-badge-text:#a1a1aa;--writing-card-icon:#9ca3af;--writing-card-icon-hover:#e5e7eb;--writing-card-meta:#f9fafb;--writing-card-meta-label:#9ca3af;box-shadow:0 18px 40px #00000073}:root.dark .writing-card__icon-button:hover,[data-theme=dark] .writing-card__icon-button:hover{background:#ffffff14}:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h1,:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h2,:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h3,:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h4,:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h5,:is(:root.dark,[data-theme=dark]) .writing-card__body .markdown-content h6{color:#f9fafb}.collapsible-message.collapsed{max-height:var(--collapse-max,600px);contain:paint;overflow:hidden;mask-image:linear-gradient(#000 calc(100% - 4.5rem),#0000)}.collapse-seam{align-items:center;gap:.75rem;margin-top:.25rem;display:flex}.collapse-seam-line{background:var(--border-subtle,var(--border-light));flex:1;height:1px}.collapse-show-more-btn{letter-spacing:-.006em;cursor:pointer;border:1px solid var(--border-subtle,var(--border-light));color:var(--text-secondary);background:0 0;border-radius:999px;flex-shrink:0;align-items:center;gap:.35rem;padding:.3rem .85rem;font-size:.8125rem;font-weight:500;transition:background-color .18s,color .18s,border-color .18s,box-shadow 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