:root{--cs-primary-color:#f97316;--cs-secondary-color:#6b7280;--cs-bg-color:#ffffff;--cs-hover-bg-color:#f9fafb;--cs-text-color:#1f2937;--cs-secondary-text-color:#6b7280;--cs-border-color:#e5e7eb;--cs-border-radius:8px;--cs-font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;--cs-font-size:14px;--cs-avatar-size:36px;--cs-comment-spacing:16px;--cs-animation-duration:200ms;--cs-destructive-color:#dc2626;--cs-success-color:#16a34a}.cs-root--dark .cs-root,.dark .cs-root,[data-cs-theme=dark] .cs-root{--cs-primary-color:#fb923c;--cs-secondary-color:#9ca3af;--cs-bg-color:#1f2937;--cs-hover-bg-color:#374151;--cs-text-color:#f9fafb;--cs-secondary-text-color:#9ca3af;--cs-border-color:#374151;--cs-destructive-color:#f87171;--cs-success-color:#4ade80}.cs-root{font-family:var(--cs-font-family);font-size:var(--cs-font-size);color:var(--cs-text-color);line-height:1.5;position:relative}.cs-root *,.cs-root :after,.cs-root :before{box-sizing:border-box}.cs-avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;overflow:hidden;flex-shrink:0;background-color:var(--cs-secondary-color);color:#fff;font-weight:600;user-select:none}.cs-avatar--sm{width:28px;height:28px;font-size:10px}.cs-avatar--md{width:var(--cs-avatar-size);height:var(--cs-avatar-size);font-size:12px}.cs-avatar--lg{width:48px;height:48px;font-size:16px}.cs-avatar__img{width:100%;height:100%;object-fit:cover;border-radius:50%}.cs-reply-form{display:flex;gap:12px;padding:12px 0}.cs-reply-form__body{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0}.cs-reply-form__replying-to{font-size:12px;color:var(--cs-secondary-text-color);display:flex;align-items:center;gap:4px}.cs-reply-form__replying-to-name{color:var(--cs-primary-color);font-weight:500}.cs-reply-form__textarea{width:100%;min-height:80px;padding:10px 12px;border:1px solid var(--cs-border-color);border-radius:var(--cs-border-radius);background:var(--cs-bg-color);color:var(--cs-text-color);font-family:inherit;font-size:inherit;line-height:1.5;resize:vertical;transition:border-color var(--cs-animation-duration) ease,box-shadow var(--cs-animation-duration) ease;outline:none}.cs-reply-form__textarea:focus{border-color:var(--cs-primary-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--cs-primary-color) 15%,transparent)}.cs-reply-form__textarea:disabled{opacity:.6;cursor:not-allowed}.cs-reply-form__textarea--error{border-color:var(--cs-destructive-color)}.cs-reply-form__textarea--error:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--cs-destructive-color) 15%,transparent)}.cs-reply-form__error{font-size:12px;color:var(--cs-destructive-color)}.cs-reply-form__footer{display:flex;align-items:center;justify-content:space-between;gap:12px}.cs-reply-form__char-count{font-size:12px;color:var(--cs-secondary-text-color)}.cs-reply-form__char-count--over{color:var(--cs-destructive-color)}.cs-reply-form__actions{display:flex;align-items:center;gap:8px;margin-left:auto}.cs-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:6px 14px;border:none;border-radius:var(--cs-border-radius);font-family:inherit;font-size:13px;font-weight:500;line-height:1;cursor:pointer;transition:all var(--cs-animation-duration) ease;white-space:nowrap;user-select:none}.cs-btn:disabled{opacity:.5;cursor:not-allowed}.cs-btn--primary{background-color:var(--cs-primary-color);color:#fff}.cs-btn--primary:hover:not(:disabled){filter:brightness(.9)}.cs-btn--outline{background:transparent;border:1px solid var(--cs-border-color);color:var(--cs-text-color)}.cs-btn--outline:hover:not(:disabled){background:var(--cs-hover-bg-color)}.cs-btn--ghost{background:transparent;color:var(--cs-secondary-text-color);padding:4px 8px;border-radius:var(--cs-border-radius)}.cs-btn--ghost:hover:not(:disabled){background:var(--cs-hover-bg-color);color:var(--cs-text-color)}.cs-btn--destructive{background-color:var(--cs-destructive-color);color:#fff}.cs-btn--destructive:hover:not(:disabled){filter:brightness(.9)}.cs-btn--sm{padding:3px 8px;font-size:12px}.cs-btn--icon{padding:4px;width:28px;height:28px}@keyframes cs-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.cs-spinner{display:inline-block;width:14px;height:14px;border:2px solid;border-right:2px solid transparent;border-radius:50%;animation:cs-spin .6s linear infinite}.cs-comment{display:flex;gap:12px;padding:var(--cs-comment-spacing) 0;border-bottom:1px solid var(--cs-border-color);animation:cs-fade-in var(--cs-animation-duration) ease}.cs-comment:last-child{border-bottom:none}@keyframes cs-fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.cs-comment--pending{opacity:.6}.cs-comment__body{flex:1;min-width:0}.cs-comment__header{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px}.cs-comment__author{font-weight:600;font-size:13px;color:var(--cs-text-color)}.cs-comment__badge{display:inline-flex;align-items:center;padding:1px 6px;border-radius:999px;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.02em}.cs-comment__badge--verified{background:color-mix(in srgb,var(--cs-primary-color) 12%,transparent);color:var(--cs-primary-color)}.cs-comment__badge--instructor{background:#dbeafe;color:#1d4ed8}.cs-comment__badge--moderator{background:#dcfce7;color:#15803d}.cs-comment__badge--staff{background:#fef3c7;color:#92400e}.cs-comment__time{font-size:12px;color:var(--cs-secondary-text-color)}.cs-comment__edited{font-size:11px;color:var(--cs-secondary-text-color);font-style:italic}.cs-comment__content{line-height:1.6;word-break:break-word;white-space:pre-wrap}.cs-comment__read-more{display:inline;background:none;border:none;padding:0;color:var(--cs-primary-color);cursor:pointer;font-size:inherit;font-weight:500;margin-left:4px}.cs-comment__read-more:hover{text-decoration:underline}.cs-edit-form{margin-top:8px}.cs-edit-form__textarea{width:100%;min-height:60px;padding:8px 10px;border:1px solid var(--cs-primary-color);border-radius:var(--cs-border-radius);background:var(--cs-bg-color);color:var(--cs-text-color);font-family:inherit;font-size:inherit;line-height:1.5;resize:vertical;outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--cs-primary-color) 10%,transparent)}.cs-edit-form__actions{display:flex;gap:6px;margin-top:6px}.cs-action-bar{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin-top:8px}.cs-reaction{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border:1px solid transparent;border-radius:999px;background:transparent;color:var(--cs-secondary-text-color);font-family:inherit;font-size:12px;cursor:pointer;transition:all var(--cs-animation-duration) ease;user-select:none;line-height:1}.cs-reaction:hover:not(:disabled){background:var(--cs-hover-bg-color);color:var(--cs-text-color)}.cs-reaction--active{background:color-mix(in srgb,var(--cs-primary-color) 10%,transparent);color:var(--cs-primary-color);border-color:color-mix(in srgb,var(--cs-primary-color) 25%,transparent)}.cs-reaction--active:hover:not(:disabled){background:color-mix(in srgb,var(--cs-primary-color) 18%,transparent)}.cs-reaction:disabled{opacity:.5;cursor:not-allowed}.cs-reaction__emoji{font-size:1.1em;line-height:1}.cs-reaction__count{font-weight:500;font-variant-numeric:tabular-nums}.cs-reaction-picker{position:relative;display:inline-flex}.cs-reaction-trigger{padding:4px}.cs-reaction-trigger--has-reactions{padding:4px 8px;gap:6px}.cs-reaction-trigger__emoji{font-size:1.1em;line-height:1}.cs-reaction-trigger__emoji--muted{opacity:.5;filter:grayscale(100%)}.cs-reaction-trigger__active{display:inline-flex;align-items:center;gap:6px}.cs-reaction-trigger__badge{display:inline-flex;align-items:center;gap:2px;font-size:.85em}.cs-reaction-trigger__badge .cs-reaction__emoji{font-size:1.15em}.cs-reaction-trigger__badge .cs-reaction__count{font-size:.85em;font-variant-numeric:tabular-nums}.cs-reaction-picker__popover{position:absolute;left:0;bottom:calc(100% + 6px);z-index:50;display:flex;flex-direction:row;gap:2px;padding:6px;background:var(--cs-bg-color);border:1px solid var(--cs-border-color);border-radius:var(--cs-border-radius);box-shadow:0 4px 16px rgba(0,0,0,.1)}.cs-reaction-picker__item{display:inline-flex;align-items:center;justify-content:space-between;width:100%;padding:6px 10px;text-align:left}.cs-reaction-picker__item .cs-reaction__count{margin-left:auto;font-variant-numeric:tabular-nums}.cs-replies-toggle{display:flex;align-items:center;gap:4px;margin-top:8px;padding:0;background:none;border:none;color:var(--cs-primary-color);font-family:inherit;font-size:12px;font-weight:500;cursor:pointer}.cs-replies-toggle:hover{text-decoration:underline}.cs-replies-toggle__icon{display:inline-flex;transition:transform var(--cs-animation-duration) ease}.cs-replies-toggle__icon--expanded{transform:rotate(180deg)}.cs-replies{margin-top:4px;padding-left:16px;border-left:2px solid var(--cs-border-color)}.cs-overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.5);animation:cs-fade-in var(--cs-animation-duration) ease}.cs-dialog{background:var(--cs-bg-color);border-radius:calc(var(--cs-border-radius) + 4px);padding:24px;max-width:400px;width:calc(100% - 32px);box-shadow:0 20px 60px rgba(0,0,0,.15);animation:cs-dialog-in var(--cs-animation-duration) ease}@keyframes cs-dialog-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.cs-dialog__title{font-size:16px;font-weight:600;margin:0 0 8px;color:var(--cs-text-color)}.cs-dialog__description{font-size:13px;color:var(--cs-secondary-text-color);margin:0 0 20px}.cs-dialog__actions{display:flex;justify-content:flex-end;gap:8px}.cs-dropdown{position:relative;display:inline-flex}.cs-dropdown__menu{position:absolute;right:0;top:calc(100% + 4px);z-index:50;min-width:160px;background:var(--cs-bg-color);border:1px solid var(--cs-border-color);border-radius:var(--cs-border-radius);box-shadow:0 4px 16px rgba(0,0,0,.1);padding:4px;animation:cs-fade-in calc(var(--cs-animation-duration) / 2) ease}.cs-dropdown__item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border:none;border-radius:calc(var(--cs-border-radius) - 2px);background:transparent;color:var(--cs-text-color);font-family:inherit;font-size:13px;cursor:pointer;text-align:left;transition:background var(--cs-animation-duration) ease}.cs-dropdown__item:hover{background:var(--cs-hover-bg-color)}.cs-dropdown__item--destructive{color:var(--cs-destructive-color)}.cs-dropdown__item--destructive:hover{background:color-mix(in srgb,var(--cs-destructive-color) 8%,transparent)}.cs-dropdown__separator{height:1px;margin:4px 0;background:var(--cs-border-color)}.cs-dropdown__sub{position:relative}.cs-dropdown__sub-trigger{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border:none;border-radius:calc(var(--cs-border-radius) - 2px);background:transparent;color:var(--cs-text-color);font-family:inherit;font-size:13px;cursor:pointer;text-align:left;transition:background var(--cs-animation-duration) ease}.cs-dropdown__sub-trigger:hover{background:var(--cs-hover-bg-color)}.cs-dropdown__sub-trigger:after{content:"›";margin-left:auto;font-size:16px;color:var(--cs-secondary-text-color)}.cs-dropdown__sub-menu{position:absolute;left:calc(100% + 4px);top:0;z-index:51;min-width:140px;background:var(--cs-bg-color);border:1px solid var(--cs-border-color);border-radius:var(--cs-border-radius);box-shadow:0 4px 16px rgba(0,0,0,.1);padding:4px;animation:cs-fade-in calc(var(--cs-animation-duration) / 2) ease}@keyframes cs-shimmer{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}.cs-skeleton{background:linear-gradient(90deg,var(--cs-hover-bg-color) 25%,var(--cs-border-color) 37%,var(--cs-hover-bg-color) 63%);background-size:200px 100%;animation:cs-shimmer 1.5s ease infinite;border-radius:var(--cs-border-radius)}.cs-skeleton--circle{border-radius:50%}.cs-skeleton-comment{display:flex;gap:12px;padding:var(--cs-comment-spacing) 0}.cs-skeleton-comment__avatar{width:var(--cs-avatar-size);height:var(--cs-avatar-size)}.cs-skeleton-comment__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.cs-skeleton-comment__name{height:12px;width:96px}.cs-skeleton-comment__line{height:12px}.cs-skeleton-comment__line--full{width:100%}.cs-skeleton-comment__line--medium{width:80%}.cs-skeleton-comment__line--short{width:64px}.cs-empty{text-align:center;padding:32px 16px;color:var(--cs-secondary-text-color)}.cs-empty__icon{font-size:32px;margin-bottom:8px;opacity:.5}.cs-empty__text{margin:0;font-size:14px}.cs-sort-bar{display:flex;align-items:center;gap:4px;padding-bottom:12px;border-bottom:1px solid var(--cs-border-color);margin-bottom:4px}.cs-sort-bar__label{margin-right:4px}.cs-sort-bar__label,.cs-sort-btn{font-size:12px;color:var(--cs-secondary-text-color)}.cs-sort-btn{padding:3px 10px;border:none;border-radius:999px;background:transparent;font-family:inherit;font-weight:500;cursor:pointer;transition:all var(--cs-animation-duration) ease}.cs-sort-btn:hover{background:var(--cs-hover-bg-color);color:var(--cs-text-color)}.cs-sort-btn--active{background:color-mix(in srgb,var(--cs-primary-color) 12%,transparent);color:var(--cs-primary-color)}.cs-toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);z-index:100;padding:8px 16px;background:var(--cs-primary-color);color:#fff;border-radius:var(--cs-border-radius);font-size:13px;box-shadow:0 4px 16px rgba(0,0,0,.15);animation:cs-toast-in var(--cs-animation-duration) ease}@keyframes cs-toast-in{0%{opacity:0;transform:translateX(-50%) translateY(8px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}.cs-icon{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;flex-shrink:0}.cs-icon svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.cs-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;margin-bottom:4px}.cs-header__title{font-size:16px;font-weight:600;margin:0;color:var(--cs-text-color)}.cs-header__count{font-size:14px;color:var(--cs-secondary-text-color);font-weight:400}