:root {
  --bg: #f8f6ef;
  --ink: #1e1d1a;
  --ink-soft: #3d3a33;
  --muted: #666257;
  --line: #d8d1bf;
  --line-soft: #e3dcc9;
  --link: #175f86;
  --panel: #fffcf5;
  --panel-active: #edf5f9;
  --surface-meta: #fbf8ef;
  --surface-inline: #f0ede2;
  --surface-code: #f5f1e7;
  --surface-quote: #f8f4eb;
  --surface-table-head: #f1ede2;
  --switch-shell-bg: transparent;
  --switch-active-bg: #ece6d5;
  --chip-active-border: #9ebed0;
  --paper-tint: #eef7f8;
  --paper-line: #bfd6da;
  --paper-accent: #0f5f67;
  --paper-accent-strong: #0b5258;
  --paper-accent-soft: #dceff1;
  --paper-hero-bg:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.76)),
    linear-gradient(135deg, rgba(238, 247, 248, 0.95), rgba(248, 252, 252, 0.95));
  --paper-shadow: 0 18px 40px rgba(18, 58, 70, 0.08);
  --paper-stat-border: rgba(15, 95, 103, 0.12);
  --paper-stat-bg: rgba(255, 255, 255, 0.72);
  --paper-stat-label: #62777b;
  --paper-stat-value: #16363b;
  --paper-button-ink: #f7ffff;
  --paper-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 250, 251, 0.92));
  --paper-card-bg-active: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(228, 243, 245, 0.98));
  --paper-card-shadow: 0 10px 24px rgba(19, 49, 57, 0.05);
  --paper-card-border-active: #7aaab0;
  --paper-card-title: #162629;
  --paper-card-summary: #4f6064;
  --paper-card-meta: #6f8286;
  --paper-viewer-bg:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 252, 252, 0.98)),
    linear-gradient(135deg, rgba(240, 248, 249, 0.75), rgba(255, 255, 255, 0.75));
  --paper-meta-bg: linear-gradient(180deg, rgba(234, 246, 247, 0.7), rgba(255, 255, 255, 0.86));
  --paper-meta-label: #60767a;
  --paper-meta-value: #183439;
  --quote-border: #9fb59f;
  --quote-text: #4b4942;
  --paper-inline-meta: #667b7f;
  --paper-index-muted: #72868a;
  --paper-shell-bg: rgba(255, 255, 255, 0.97);
  --paper-shell-shadow: 0 10px 32px rgba(18, 58, 70, 0.06);
  --paper-meta-inline-label: #6b8084;
  --paper-meta-inline-value: #183439;
  --sans: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Newsreader", "Noto Serif SC", "Source Han Serif SC", serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1316;
  --ink: #edf2f4;
  --ink-soft: #cfdbde;
  --muted: #96a7ad;
  --line: #2b363b;
  --line-soft: #212a2f;
  --link: #79dfff;
  --panel: #141b1f;
  --panel-active: #17303a;
  --surface-meta: #141c20;
  --surface-inline: #1a2429;
  --surface-code: #131b20;
  --surface-quote: #12191d;
  --surface-table-head: #172228;
  --switch-shell-bg: rgba(255, 255, 255, 0.03);
  --switch-active-bg: #24343c;
  --chip-active-border: #3d6472;
  --paper-line: #335158;
  --paper-accent: #8be6dc;
  --paper-accent-strong: #76d5cb;
  --paper-accent-soft: #193037;
  --paper-hero-bg:
    radial-gradient(circle at top left, rgba(39, 56, 63, 0.92), rgba(18, 25, 29, 0.82)),
    linear-gradient(135deg, rgba(18, 39, 43, 0.96), rgba(13, 18, 22, 0.98));
  --paper-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --paper-stat-border: rgba(139, 230, 220, 0.18);
  --paper-stat-bg: rgba(20, 31, 36, 0.85);
  --paper-stat-label: #8faab0;
  --paper-stat-value: #edf7f8;
  --paper-button-ink: #0d191c;
  --paper-card-bg: linear-gradient(180deg, rgba(20, 31, 37, 0.96), rgba(16, 25, 31, 0.96));
  --paper-card-bg-active: linear-gradient(180deg, rgba(24, 38, 45, 0.98), rgba(20, 34, 40, 0.98));
  --paper-card-shadow: 0 14px 28px rgba(0, 0, 0, 0.24);
  --paper-card-border-active: #5c8d96;
  --paper-card-title: #e4eff1;
  --paper-card-summary: #aec0c6;
  --paper-card-meta: #8ea3a8;
  --paper-viewer-bg:
    linear-gradient(180deg, rgba(18, 28, 34, 0.98), rgba(13, 19, 23, 0.98)),
    linear-gradient(135deg, rgba(17, 34, 40, 0.85), rgba(13, 19, 23, 0.82));
  --paper-meta-bg: linear-gradient(180deg, rgba(20, 35, 40, 0.94), rgba(14, 23, 27, 0.94));
  --paper-meta-label: #8ea7ad;
  --paper-meta-value: #dbe7e9;
  --quote-border: #4e7f86;
  --quote-text: #ced9dc;
  --paper-inline-meta: #8ea7ad;
  --paper-index-muted: #8ea2a7;
  --paper-shell-bg: rgba(18, 28, 34, 0.98);
  --paper-shell-shadow: 0 10px 32px rgba(0, 0, 0, 0.28);
  --paper-meta-inline-label: #90a9af;
  --paper-meta-inline-value: #dce7e8;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6fafc;
  --ink: #16222b;
  --ink-soft: #32424e;
  --muted: #70818c;
  --line: #d8e2ea;
  --line-soft: #e7edf2;
  --link: #0d6ea6;
  --panel: #ffffff;
  --panel-active: #eef7ff;
  --surface-meta: #ffffff;
  --surface-inline: #eff5fa;
  --surface-code: #f7fbfe;
  --surface-quote: #f6fbfd;
  --surface-table-head: #eff5fa;
  --switch-shell-bg: transparent;
  --switch-active-bg: #e6f1fb;
  --chip-active-border: #92b8d3;
  --paper-line: #cfdee6;
  --paper-accent: #0f6479;
  --paper-accent-strong: #0b5263;
  --paper-accent-soft: #e0f0f4;
  --paper-hero-bg:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.88)),
    linear-gradient(135deg, rgba(240, 248, 252, 0.96), rgba(250, 253, 255, 0.98));
  --paper-shadow: 0 18px 36px rgba(18, 58, 70, 0.08);
  --paper-stat-border: rgba(15, 100, 121, 0.12);
  --paper-stat-bg: rgba(255, 255, 255, 0.86);
  --paper-stat-label: #6f8590;
  --paper-stat-value: #17343b;
  --paper-button-ink: #f7ffff;
  --paper-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 250, 253, 0.96));
  --paper-card-bg-active: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(235, 245, 249, 0.98));
  --paper-card-shadow: 0 10px 24px rgba(19, 49, 57, 0.05);
  --paper-card-border-active: #7caab6;
  --paper-card-title: #173139;
  --paper-card-summary: #4d636d;
  --paper-card-meta: #708792;
  --paper-viewer-bg:
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(248, 252, 255, 0.99)),
    linear-gradient(135deg, rgba(242, 248, 251, 0.8), rgba(255, 255, 255, 0.8));
  --paper-meta-bg: linear-gradient(180deg, rgba(238, 247, 249, 0.78), rgba(255, 255, 255, 0.92));
  --paper-meta-label: #6b828c;
  --paper-meta-value: #1b3941;
  --quote-border: #8eacb2;
  --quote-text: #465761;
  --paper-inline-meta: #6e838d;
  --paper-index-muted: #78909a;
  --paper-shell-bg: rgba(255, 255, 255, 0.98);
  --paper-shell-shadow: 0 10px 32px rgba(18, 58, 70, 0.06);
  --paper-meta-inline-label: #728791;
  --paper-meta-inline-value: #1a3941;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.72;
}

.topbar,
.shell,
.footer {
  width: min(1100px, calc(100vw - 28px));
  margin-left: auto;
  margin-right: auto;
}

.topbar {
  margin-top: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: clamp(40px, 5vw, 52px);
  height: clamp(48px, 6vw, 62px);
  flex: 0 0 auto;
  display: block;
}

.brand-copy {
  display: inline-grid;
  gap: 2px;
}

.brand-text {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 500;
  line-height: 1;
}

.brand-subtitle {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

.nav-btn,
.nav-link {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.nav-btn:hover,
.nav-link:hover,
.nav-btn.active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--switch-shell-bg);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.85rem;
  padding: 4px 10px;
  cursor: pointer;
}

.lang-btn:hover {
  color: var(--ink);
}

.lang-btn.active {
  background: var(--switch-active-bg);
  color: var(--ink);
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--switch-shell-bg);
  color: var(--paper-accent-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.theme-toggle:hover {
  background: var(--switch-active-bg);
  border-color: var(--chip-active-border);
  color: var(--paper-accent);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  display: block;
}

.shell {
  margin-top: 24px;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.1rem, 6vw, 3.25rem);
  margin-bottom: 16px;
  max-width: 16ch;
}

.lead {
  margin: 0 0 8px;
  color: var(--ink-soft);
  max-width: 70ch;
  font-size: 1.08rem;
}

.quick-actions {
  margin-top: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.jump-btn,
.text-link,
.text-btn {
  border: 0;
  background: transparent;
  color: var(--link);
  font: inherit;
  font-weight: 500;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 0;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.jump-btn:hover,
.text-link:hover,
.text-btn:hover {
  border-bottom-color: var(--link);
}

.home-block {
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.home-block h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.home-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.home-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}

.home-entry-link {
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.45rem;
  text-align: left;
  cursor: pointer;
  padding: 0;
  line-height: 1.3;
}

.home-entry-link:hover {
  color: var(--link);
}

.home-entry-summary {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.docs-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 14px;
}

.docs-head h2 {
  font-size: 2.3rem;
  margin-bottom: 4px;
}

.docs-head p {
  margin: 0;
  color: var(--muted);
}

.docs-layout {
  display: grid;
  grid-template-columns: minmax(220px, 270px) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  height: calc(100vh - 230px);
  height: calc(100dvh - 230px);
  min-height: 480px;
}

.papers-panel {
  position: relative;
}

.papers-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 320px);
  gap: 18px;
  align-items: stretch;
  margin-bottom: 18px;
}

.papers-hero-copy,
.papers-hero-meta {
  border: 1px solid var(--paper-line);
  border-radius: 18px;
  background: var(--paper-hero-bg);
  box-shadow: var(--paper-shadow);
}

.papers-hero-copy {
  padding: 24px 24px 22px;
}

.papers-hero-copy h2 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  margin-bottom: 10px;
}

.papers-subtitle {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 1rem;
}

.papers-hero-meta {
  padding: 18px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.paper-stat {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--paper-stat-border);
  background: var(--paper-stat-bg);
}

.paper-stat-label {
  display: block;
  color: var(--paper-stat-label);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.paper-stat-value {
  display: block;
  margin-top: 6px;
  color: var(--paper-stat-value);
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.15;
}

.paper-refresh-btn {
  border: 1px solid var(--paper-accent);
  border-radius: 999px;
  background: var(--paper-accent);
  color: var(--paper-button-ink);
  font: inherit;
  font-weight: 600;
  padding: 10px 14px;
  cursor: pointer;
  justify-self: start;
}

.paper-refresh-btn:hover {
  background: var(--paper-accent-strong);
  border-color: var(--paper-accent-strong);
}

.papers-layout {
  display: grid;
  grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  height: calc(100vh - 248px);
  height: calc(100dvh - 248px);
  min-height: 500px;
}

.paper-sidebar {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 8px;
}

.paper-list {
  display: grid;
  gap: 12px;
}

.paper-card {
  width: 100%;
  border: 1px solid var(--paper-line);
  border-radius: 16px;
  background: var(--paper-card-bg);
  box-shadow: var(--paper-card-shadow);
  padding: 16px 16px 14px;
  text-align: left;
  cursor: pointer;
}

.paper-card:hover,
.paper-card.active {
  border-color: var(--paper-card-border-active);
  background: var(--paper-card-bg-active);
  transform: translateY(-1px);
}

.paper-card-index {
  display: inline-flex;
  min-width: 40px;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--paper-accent-soft);
  color: var(--paper-accent);
  font-family: var(--mono);
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.paper-card strong {
  display: block;
  color: var(--paper-card-title);
  font-family: var(--serif);
  font-size: 1.18rem;
  line-height: 1.3;
}

.paper-card p {
  margin: 8px 0 0;
  color: var(--paper-card-summary);
  font-size: 0.92rem;
  line-height: 1.55;
}

.paper-card small {
  display: block;
  margin-top: 10px;
  color: var(--paper-card-meta);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.doc-sidebar {
  height: 100%;
  max-height: none;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 10px;
  border-right: 1px solid var(--line);
}

.doc-sidebar h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.column-grid,
.doc-list {
  display: grid;
  gap: 8px;
}

.column-grid {
  margin-bottom: 14px;
}

.column-chip,
.doc-item {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
}

.column-chip {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.column-chip span {
  font-size: 0.9rem;
}

.column-chip small {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 0.75rem;
}

.column-chip.active,
.doc-item.active {
  border-color: var(--chip-active-border);
  background: var(--panel-active);
}

.doc-item strong {
  display: block;
  font-size: 0.94rem;
  margin-bottom: 3px;
}

.doc-item small {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.doc-viewer {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 6px;
}

.paper-viewer {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px 26px 28px;
  border: 1px solid var(--paper-line);
  border-radius: 22px;
  background: var(--paper-viewer-bg);
  box-shadow: var(--paper-shadow);
}

.doc-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  margin: 0 0 18px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-meta);
}

.paper-meta {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 14px;
  border: 1px solid var(--paper-line);
  border-radius: 16px;
  background: var(--paper-meta-bg);
}

.paper-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.paper-meta-item {
  min-width: 0;
}

.paper-meta-label {
  display: block;
  color: var(--paper-meta-label);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.paper-meta-value {
  display: block;
  margin-top: 4px;
  color: var(--paper-meta-value);
  font-family: var(--mono);
  font-size: 0.82rem;
  word-break: break-word;
}

.paper-original-link {
  color: var(--paper-accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  justify-self: start;
}

.paper-original-link:hover {
  border-bottom-color: var(--paper-accent);
}

.doc-meta-item {
  min-width: 0;
}

.doc-meta-label {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
}

.doc-meta-value {
  display: block;
  margin-top: 2px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  word-break: break-word;
}

.doc-viewer h1,
.paper-viewer h1 {
  font-size: 2.35rem;
  margin: 0 0 14px;
  max-width: none;
  text-wrap: pretty;
}

.doc-viewer h2,
.paper-viewer h2 {
  font-size: 1.56rem;
  margin: 1.1em 0 0.45em;
}

.doc-viewer h3,
.paper-viewer h3 {
  font-size: 1.22rem;
  margin: 1em 0 0.45em;
}

.doc-viewer p,
.doc-viewer li,
.doc-viewer blockquote,
.paper-viewer p,
.paper-viewer li,
.paper-viewer blockquote {
  font-size: 1.02rem;
}

.doc-viewer ul,
.paper-viewer ul {
  padding-left: 1.2em;
}

.doc-viewer a,
.paper-viewer a {
  color: var(--link);
}

.doc-viewer code,
.paper-viewer code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface-inline);
  border-radius: 4px;
  padding: 0.06em 0.28em;
}

.doc-viewer pre,
.paper-viewer pre {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-code);
  padding: 12px;
  overflow: auto;
}

.doc-viewer pre code,
.paper-viewer pre code {
  background: transparent;
  padding: 0;
}

.doc-viewer blockquote,
.paper-viewer blockquote {
  margin: 1em 0;
  padding: 4px 12px;
  border-left: 3px solid var(--quote-border);
  color: var(--quote-text);
  background: var(--surface-quote);
}

.doc-viewer img,
.paper-viewer img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--line);
  margin: 10px 0;
}

.doc-viewer table,
.paper-viewer table {
  width: 100%;
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 1rem 0 1.2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-meta);
}

.doc-viewer thead,
.paper-viewer thead {
  background: var(--surface-table-head);
}

.doc-viewer th,
.doc-viewer td,
.paper-viewer th,
.paper-viewer td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  white-space: normal;
}

.doc-viewer th,
.paper-viewer th {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 600;
}

.doc-viewer td,
.paper-viewer td {
  min-width: 120px;
}

.doc-viewer tbody tr:last-child td,
.paper-viewer tbody tr:last-child td {
  border-bottom: 0;
}

.doc-viewer .math-block,
.paper-viewer .math-block {
  margin: 1em 0;
  overflow-x: auto;
  overflow-y: hidden;
}

.doc-viewer mjx-container,
.paper-viewer mjx-container {
  max-width: 100%;
}

.doc-viewer mjx-container[display="true"],
.paper-viewer mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 4px;
}

.papers-panel {
  max-width: 940px;
  margin: 0 auto;
}

.papers-head-simple {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--paper-line);
}

.papers-inline-meta {
  margin: 10px 0 0;
  color: var(--paper-inline-meta);
  font-family: var(--mono);
  font-size: 0.84rem;
}

.papers-inline-sep {
  margin: 0 8px;
}

.paper-list-simple {
  gap: 0;
}

.paper-list-simple .paper-card {
  border: 0;
  border-bottom: 1px solid var(--paper-line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 14px 0;
}

.paper-list-simple .paper-card:hover,
.paper-list-simple .paper-card.active {
  background: transparent;
  border-color: var(--paper-line);
  transform: none;
}

.paper-list-simple .paper-card:hover strong,
.paper-list-simple .paper-card.active strong {
  color: var(--paper-accent);
}

.paper-list-simple .paper-card-index {
  min-width: 0;
  margin-bottom: 6px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--paper-index-muted);
}

.papers-panel:not(.paper-detail-open) .paper-viewer-simple {
  display: none;
}

.papers-panel.paper-detail-open .papers-index {
  display: none;
}

.papers-panel.paper-detail-open .paper-viewer-simple {
  display: block;
  height: auto;
  max-height: none;
  overflow: visible;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.paper-viewer-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 28px 32px;
  border: 1px solid var(--paper-line);
  border-radius: 18px;
  background: var(--paper-shell-bg);
  box-shadow: var(--paper-shell-shadow);
}

.paper-viewer-toolbar {
  margin-bottom: 14px;
}

.paper-back-btn {
  border: 0;
  background: transparent;
  color: var(--paper-accent);
  font: inherit;
  font-weight: 600;
  padding: 0;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.paper-back-btn:hover {
  border-bottom-color: var(--paper-accent);
}

.paper-meta-simple {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  margin: 0 0 24px;
  padding: 0 0 14px;
  border: 0;
  border-bottom: 1px solid var(--paper-line);
  border-radius: 0;
  background: transparent;
}

.paper-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  flex: 1 1 auto;
}

.paper-meta-inline {
  display: inline-flex;
  gap: 6px;
  align-items: baseline;
}

.paper-meta-inline-label {
  color: var(--paper-meta-inline-label);
  font-family: var(--mono);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.paper-meta-inline-value {
  color: var(--paper-meta-inline-value);
  font-size: 0.92rem;
}

.footer {
  margin-top: 26px;
  margin-bottom: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.icp {
  color: var(--muted);
  text-decoration: none;
}

.copyright-text {
  flex: 1 1 auto;
  text-align: center;
  font-size: 0.8rem;
}

.placeholder {
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 0;
  }

  .papers-hero,
  .papers-layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 0;
  }

  .papers-head-simple {
    align-items: flex-start;
    flex-direction: column;
  }

  .papers-inline-sep {
    display: none;
  }

  .doc-sidebar {
    height: auto;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 14px;
    overflow: visible;
  }

  .doc-viewer,
  .paper-viewer {
    height: auto;
    max-height: none;
    overflow: visible;
  }

  .paper-viewer-shell {
    padding: 20px 18px 24px;
  }

  .paper-sidebar {
    height: auto;
    overflow: visible;
    padding-right: 0;
  }

  .home-entry-link {
    font-size: 1.26rem;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .copyright-text {
    text-align: left;
  }
}