.paper-index-page {
  min-height: calc(100vh - 72px);
  background:
    radial-gradient(circle at 8% 0%, rgba(37, 99, 235, 0.08), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 38%, var(--white) 100%);
}

.paper-index-page .llx-pl-hero {
  padding: 26px 0 0;
}

.paper-index-page .llx-pl-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--text-light);
  font-size: 13px;
}

.paper-index-page .llx-pl-breadcrumb a {
  color: var(--primary);
}

.paper-index-page .llx-pl-page-head {
  max-width: 860px;
}

.paper-index-page .llx-pl-page-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.paper-index-page .llx-pl-seo-title {
  margin: 0;
  line-height: 1.35;
}

.paper-index-page .llx-pl-filter-section {
  padding: 16px 0 18px;
}

.paper-index-page .llx-pl-filter-box {
  position: relative;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.paper-index-page .llx-pl-channel-select {
  position: relative;
  z-index: 5;
  flex-shrink: 0;
}

.paper-index-page .llx-pl-channel-select-btn {
  height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--primary-line);
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.10);
  cursor: pointer;
}

.paper-index-page .llx-pl-channel-select-btn:hover {
  background: #dbeafe;
}

.paper-index-page .llx-pl-channel-arrow {
  font-size: 11px;
  line-height: 1;
  transition: transform 0.18s ease;
}

.paper-index-page .llx-pl-channel-select:hover .llx-pl-channel-arrow,
.paper-index-page .llx-pl-channel-select:focus-within .llx-pl-channel-arrow {
  transform: rotate(180deg);
}

.paper-index-page .llx-pl-channel-popover {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  width: 760px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
}

.paper-index-page .llx-pl-channel-select:hover .llx-pl-channel-popover,
.paper-index-page .llx-pl-channel-select:focus-within .llx-pl-channel-popover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.paper-index-page .llx-pl-channel-popover::before {
  content: "";
  position: absolute;
  left: 22px;
  top: -6px;
  width: 12px;
  height: 12px;
  background: var(--white);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transform: rotate(45deg);
}

.paper-index-page .llx-pl-channel-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.paper-index-page .llx-pl-channel-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  min-height: 30px;
}

.paper-index-page .llx-pl-channel-stage-name {
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 800;
}

.paper-index-page .llx-pl-channel-subjects {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 18px;
  padding-left: 14px;
  border-left: 1px solid var(--primary-line);
}

.paper-index-page .llx-pl-channel-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 26px;
  padding: 0 8px;
  border-radius: 4px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
}

.paper-index-page .llx-pl-channel-link:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.paper-index-page .llx-pl-channel-link.is-active {
  color: var(--white);
  background: var(--primary);
  font-weight: 800;
}

.paper-index-page .llx-pl-filter-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-soft);
}

.paper-index-page .llx-pl-filter-row:last-child {
  border-bottom: 0;
}

.paper-index-page .llx-pl-filter-label {
  padding-top: 6px;
  color: var(--text-light);
  font-size: 14px;
  white-space: nowrap;
}

.paper-index-page .llx-pl-filter-options {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.paper-index-page .llx-pl-filter-options a {
  min-height: 30px;
  padding: 6px 11px;
  border-radius: 999px;
  color: var(--text-sub);
  background: var(--white);
  border: 1px solid transparent;
  font-size: 14px;
  line-height: 1.2;
}

.paper-index-page .llx-pl-filter-options a:hover,
.paper-index-page .llx-pl-filter-options a.is-active {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: var(--primary-line);
}

.paper-index-page .llx-pl-filter-options a.is-active {
  font-weight: 800;
}

.paper-index-page .llx-pl-filter-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  padding-top: 12px;
}

.paper-index-page .llx-pl-filter-more-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.paper-index-page .llx-pl-filter-more-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-light);
  font-size: 14px;
  cursor: pointer;
}

.paper-index-page .llx-pl-filter-more-toggle:hover {
  color: var(--primary);
}

.paper-index-page .llx-pl-filter-more-arrow {
  display: inline-block;
  font-size: 11px;
  line-height: 1;
  transition: transform 0.18s ease;
}

.paper-index-page .llx-pl-filter-box.is-more-open .llx-pl-filter-more-arrow {
  transform: rotate(180deg);
}

.paper-index-page .llx-pl-filter-more-body {
  display: none;
}

.paper-index-page .llx-pl-filter-box.is-more-open .llx-pl-filter-more-body {
  display: block;
}

.paper-index-page .llx-pl-filter-actions {
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

.paper-index-page .llx-pl-main-section {
  padding: 4px 0 46px;
}

.paper-index-page .llx-pl-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 20px;
  align-items: start;
}

.paper-index-page .llx-pl-result-panel {
  min-width: 0;
}

.paper-index-page .llx-pl-sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.paper-index-page .llx-pl-result-count {
  color: var(--text-sub);
  font-size: 14px;
}

.paper-index-page .llx-pl-result-count strong {
  color: var(--text-main);
}

.paper-index-page .llx-pl-sort-options {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.paper-index-page .llx-pl-sort-options a {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--text-sub);
  font-size: 14px;
}

.paper-index-page .llx-pl-sort-options a:hover,
.paper-index-page .llx-pl-sort-options a.is-active {
  color: var(--primary);
  background: var(--primary-soft);
}

.paper-index-page .llx-pl-paper-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.paper-index-page .llx-pl-paper-card,
.paper-index-page .llx-pl-empty {
  padding: 20px;
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.paper-index-page .llx-pl-paper-card:hover {
  border-color: var(--primary-line);
  background: #fbfdff;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.07);
}

.paper-index-page .llx-pl-empty {
  padding: 34px;
  text-align: center;
  border-style: dashed;
}

.paper-index-page .llx-pl-empty h3 {
  margin: 0;
}

.paper-index-page .llx-pl-empty p {
  margin: 8px 0 0;
  color: var(--text-light);
}

.paper-index-page .llx-pl-paper-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.paper-index-page .llx-pl-paper-main {
  min-width: 0;
  flex: 1;
}

.paper-index-page .llx-pl-paper-title {
  display: inline;
  color: var(--text-main);
  font-size: 19px;
  line-height: 1.5;
  font-weight: 800;
}

.paper-index-page .llx-pl-paper-title:hover {
  color: var(--primary);
}

.paper-index-page .llx-pl-paper-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.paper-index-page .llx-pl-paper-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--text-sub);
  background: #f8fafc;
  border: 1px solid var(--border);
  font-size: 12px;
}

.paper-index-page .llx-pl-paper-tags .llx-pl-paper-purpose {
  color: var(--purple);
  background: #f2ecff;
  border-color: #f2ecff;
}

.paper-index-page .llx-pl-paper-summary {
  margin: 12px 0 0;
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.6;
  font-weight: 650;
}

.paper-index-page .llx-pl-paper-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 16px;
}

.paper-index-page .llx-pl-paper-stats {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: #9ca3af;
  font-size: 13px;
}

.paper-index-page .llx-pl-paper-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.paper-index-page .llx-pl-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: sticky;
  top: 86px;
}

.paper-index-page .llx-pl-side-card {
  padding: 18px;
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.paper-index-page .llx-pl-side-card-title {
  margin: 0;
  color: var(--text-main);
  font-size: 17px;
  font-weight: 800;
}

.paper-index-page .llx-pl-side-card-desc {
  margin: 9px 0 0;
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.7;
}

.paper-index-page .llx-pl-side-primary {
  margin-top: 14px;
}

.paper-index-page .llx-pl-side-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.paper-index-page .llx-pl-side-list a {
  display: block;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.5;
}

.paper-index-page .llx-pl-side-list a:hover {
  color: var(--primary);
}

.paper-index-page .llx-pl-side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.paper-index-page .llx-pl-side-tags a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--text-sub);
  background: #f8fafc;
  border: 1px solid var(--border);
  font-size: 13px;
}

.paper-index-page .llx-pl-side-tags a:hover {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: var(--primary-line);
}

.paper-index-page .llx-pl-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  padding: 8px 0;
}

.paper-index-page .llx-pl-page-item {
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text-sub);
  background: var(--white);
  border: 1px solid var(--border);
  font-size: 14px;
}

.paper-index-page .llx-pl-page-item:hover,
.paper-index-page .llx-pl-page-item.is-active {
  color: var(--white);
  background: var(--primary);
  border-color: var(--primary);
}

.paper-index-page .llx-pl-page-item.is-disabled,
.paper-index-page .llx-pl-page-item.is-disabled:hover {
  color: #cbd5e1;
  background: #f8fafc;
  border-color: var(--border);
  cursor: not-allowed;
}

@media (max-width: 1060px) {
  .paper-index-page .llx-pl-layout {
    grid-template-columns: 1fr;
  }

  .paper-index-page .llx-pl-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .paper-index-page .llx-pl-page-title-row,
  .paper-index-page .llx-pl-filter-bottom,
  .paper-index-page .llx-pl-sort-bar,
  .paper-index-page .llx-pl-paper-top,
  .paper-index-page .llx-pl-paper-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .paper-index-page .llx-pl-filter-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .paper-index-page .llx-pl-filter-label {
    padding-top: 0;
    font-weight: 800;
    color: var(--text-main);
  }

  .paper-index-page .llx-pl-filter-actions,
  .paper-index-page .llx-pl-paper-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .paper-index-page .llx-pl-channel-popover {
    width: min(88vw, 760px);
  }

  .paper-index-page .llx-pl-sort-options {
    justify-content: flex-start;
  }

  .paper-index-page .llx-pl-sidebar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 460px) {
  .paper-index-page .llx-pl-paper-actions .base-btn {
    flex: 1;
  }
}