:root {
  --bg-top: #06070b;
  --bg-mid: #121620;
  --bg-bottom: #1c304b;
  --panel: rgba(9, 12, 18, 0.72);
  --panel-border: rgba(170, 197, 235, 0.16);
  --text-main: #eef3fb;
  --text-dim: #9fb0c8;
  --accent: #7fb2ff;
  --shadow: rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  position: relative;
  isolation: isolate;
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--text-main);
  background: #000;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(142, 184, 255, 0.11) 0,
      rgba(142, 184, 255, 0.11) 1px,
      transparent 1px,
      transparent 40px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(142, 184, 255, 0.11) 0,
      rgba(142, 184, 255, 0.11) 1px,
      transparent 1px,
      transparent 40px
    );
  background-size: 100% 100%, 100% 100%;
  transform: perspective(1200px) rotateX(72deg) scale(1.85) translateY(10%);
  transform-origin: center 38%;
  opacity: 0.52;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: none;
}

.hero {
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 28px;
}

.hero-portal {
  position: relative;
  padding-top: 88px;
}

.hero-landing {
  text-align: center;
  padding-top: 112px;
}

.eyebrow {
  margin: 0 0 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: 1rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  line-height: 0.95;
}

.intro {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--text-dim);
  font-size: 1.02rem;
  line-height: 1.7;
}

.gallery-nav {
  margin: 18px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
}

.hero-button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.hero-link:hover,
.hero-link:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.lang-switch {
  position: absolute;
  top: 18px;
  right: 0;
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
}

.nav-lang-switch {
  position: static;
  margin-left: 2px;
  flex: 0 0 auto;
}

.lang-pill {
  min-width: 42px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  cursor: pointer;
}

.lang-pill.is-active {
  background: rgba(127, 178, 255, 0.22);
  color: var(--text-main);
}

.portal-grid {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 8px 0 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}

.section-grid {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.section-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 28px;
  color: var(--text-main);
  text-decoration: none;
  background: rgba(10, 14, 22, 0.82);
  border: 1px solid var(--panel-border);
  box-shadow: 0 24px 54px var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.section-card:hover,
.section-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(156, 196, 255, 0.34);
  background: rgba(12, 18, 28, 0.9);
}

.section-cover {
  width: 100%;
  height: 280px;
  display: block;
  object-fit: cover;
}

.section-copy {
  padding: 22px 22px 24px;
}

.section-index {
  display: block;
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.24em;
}

.section-card h2 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  line-height: 0.95;
}

.section-tagline {
  margin: 12px 0 0;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.6;
}

.section-tagline-en {
  margin-top: 4px;
  font-size: 0.95rem;
  opacity: 0.96;
}

.portal-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 28px;
  color: var(--text-main);
  text-decoration: none;
  background: rgba(10, 14, 22, 0.82);
  border: 1px solid var(--panel-border);
  box-shadow: 0 24px 54px var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.portal-card:hover,
.portal-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(156, 196, 255, 0.34);
  background: rgba(12, 18, 28, 0.9);
}

.portal-cover {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.portal-copy {
  padding: 18px 18px 20px;
}

.portal-copy h2 {
  margin: 0;
  font-size: 1.45rem;
}

.portal-copy p {
  margin: 0;
  color: var(--text-dim);
  line-height: 1.7;
}

code {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.16rem 0.4rem;
  border-radius: 999px;
}

.gallery {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 12px 0 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.gallery-toolbar {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sort-pill,
.rating-pill {
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-main);
  font: inherit;
  cursor: pointer;
  transition: background-color 180ms ease, transform 180ms ease;
}

.sort-pill {
  padding: 10px 14px;
}

.sort-pill:hover,
.sort-pill:focus-visible,
.rating-pill:hover,
.rating-pill:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.sort-pill.is-active,
.rating-pill.is-active {
  background: rgba(127, 178, 255, 0.22);
}

.card {
  margin: 0;
  padding: 0;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
  backdrop-filter: blur(10px);
  width: 100%;
}

.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
  padding: 12px;
  border-radius: inherit;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.card-link:hover,
.card-link:focus-visible {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.03);
}

.card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.photo-page {
  min-height: 100vh;
  padding: 0;
}

.research-note {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--text-dim);
  line-height: 1.7;
}

.research-list {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 8px 0 64px;
  display: grid;
  gap: 22px;
}

.paper-card {
  padding: 24px 24px 20px;
  border-radius: 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
  backdrop-filter: blur(10px);
}

.paper-layout {
  margin-top: 18px;
}

.paper-layout-top {
  display: grid;
  gap: 18px;
}

.paper-layout-side {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.95fr);
  gap: 22px;
  align-items: start;
}

.paper-copy {
  min-width: 0;
}

.paper-media {
  margin: 0;
}

.paper-figure-link {
  display: block;
  border-radius: 18px;
  overflow: hidden;
}

.paper-figure-link:hover .paper-figure,
.paper-figure-link:focus-visible .paper-figure {
  transform: scale(1.01);
}

.paper-media-wide {
  margin-top: 18px;
}

.paper-media-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.paper-media-grid .paper-media-wide {
  margin-top: 0;
}

.paper-figure {
  display: block;
  width: 100%;
  max-height: min(54vh, 520px);
  object-fit: contain;
  object-position: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  transition: transform 180ms ease;
}

.paper-card-side .paper-figure {
  max-height: min(50vh, 460px);
}

.paper-media-grid .paper-figure {
  height: clamp(220px, 25vw, 320px);
  max-height: none;
  object-fit: contain;
}

.paper-source {
  margin: 12px 0 0;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.paper-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.paper-head h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  line-height: 1.3;
}

.paper-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 78px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-main);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.07);
}

.paper-link:hover,
.paper-link:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.paper-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.paper-abstract {
  color: var(--text-dim);
  line-height: 1.82;
  font-size: 1rem;
}

.paper-abstract p {
  margin: 0;
}

.paper-abstract p + p {
  margin-top: 12px;
}

.paper-abstract mjx-container {
  color: var(--text-main);
}

.ratings-import-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.ratings-export-panel {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 64px;
}

.ratings-export-card {
  padding: 20px;
  border-radius: 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
}

.ratings-export-card h2 {
  margin: 0 0 12px;
}

.ratings-export-text {
  width: 100%;
  min-height: 260px;
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--panel-border);
  background: rgba(0, 0, 0, 0.28);
  color: var(--text-main);
  font: 0.95rem/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  resize: vertical;
}

.rating-root {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 8px 0 64px;
  display: grid;
  gap: 28px;
}

.rating-album {
  display: grid;
  gap: 16px;
}

.rating-album-title {
  margin: 0;
  font-size: clamp(1.4rem, 2vw, 2rem);
}

.rating-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.rating-card {
  padding: 14px;
  border-radius: 20px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
}

.rating-preview {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.rating-title {
  margin: 12px 0 0;
  font-size: 1rem;
  line-height: 1.45;
  word-break: break-word;
}

.rating-meta,
.rating-score {
  margin: 8px 0 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.rating-buttons {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.rating-pill {
  min-height: 38px;
}

.photo-view {
  width: 100%;
  min-height: 100vh;
  padding: 72px 0 70px;
  background: transparent;
}

.photo-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
  padding: 10px 16px;
  color: var(--text-dim);
  background: linear-gradient(180deg, rgba(6, 7, 11, 0.92) 0%, rgba(6, 7, 11, 0.55) 72%, rgba(6, 7, 11, 0) 100%);
  z-index: 10;
}

.photo-heading {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.photo-album-label {
  color: var(--text-dim);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.photo-title {
  max-width: min(58vw, 760px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-main);
  font-size: clamp(1rem, 1.45vw, 1.28rem);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
}

.back-link:hover,
.back-link:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.photo-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  border: 0;
  cursor: pointer;
  font: inherit;
  color: var(--text-main);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.nav-link[aria-disabled="true"] {
  opacity: 0.4;
  pointer-events: none;
}

.photo-frame {
  margin: 0;
  min-height: calc(100vh - 142px);
}

.photo-stage {
  width: 100%;
  height: calc(100vh - 142px);
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  cursor: default;
}

.photo-canvas {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 100%;
  min-height: 100%;
}

.photo-frame img {
  display: block;
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.photo-stage.is-draggable {
  cursor: grab;
}

.photo-stage.is-dragging {
  cursor: grabbing;
}

.photo-stage.is-dragging,
.photo-stage.is-dragging * {
  user-select: none;
}

.zoom-controls {
  position: fixed;
  right: 12px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(320px, calc(100% - 24px));
  padding: 8px 10px;
  border-radius: 14px;
  background: rgba(9, 12, 18, 0.78);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
  backdrop-filter: blur(10px);
}

.photo-view.is-error {
  max-width: 720px;
}

.zoom-slider {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}

.zoom-slider input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.icon-label,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-label {
  width: 24px;
  height: 24px;
  color: var(--text-main);
  flex: 0 0 auto;
}

.icon-label svg,
.icon-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button {
  min-width: 38px;
  width: 38px;
  height: 38px;
  padding: 0;
}

.zoom-value {
  min-width: 48px;
  text-align: right;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.research-figure-page .photo-frame {
  min-height: auto;
  margin: 0;
}

.research-figure-page .photo-stage {
  height: min(72vh, calc(100vh - 220px));
}

.research-caption-wrap {
  width: 100%;
  margin: 0;
}

.research-caption-card {
  padding: 22px;
  border-radius: 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px var(--shadow);
  backdrop-filter: blur(10px);
}

.research-paper-title {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  line-height: 1.35;
}

.research-caption-text {
  margin-top: 14px;
  color: var(--text-dim);
  line-height: 1.82;
  font-size: 1rem;
}

.research-caption-text p {
  margin: 0;
}

.research-caption-text mjx-container {
  color: var(--text-main);
}

.research-figure-page .photo-view {
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 70px;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.9fr);
  column-gap: 24px;
  align-items: start;
}

.research-figure-page .photo-nav {
  grid-column: 1 / -1;
}

.research-figure-page .zoom-controls {
  right: 12px;
  bottom: 12px;
}

@media (max-width: 640px) {
  .hero {
    padding-top: 40px;
  }

  .hero-portal {
    padding-top: 94px;
  }

  .lang-switch {
    top: 12px;
    right: 0;
  }

  .gallery {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .gallery-toolbar {
    padding-bottom: 10px;
  }

  .portal-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 18px;
  }

  .section-card {
    min-height: 0;
  }

  .section-cover {
    height: 220px;
  }

  .paper-card {
    padding: 20px 18px 18px;
  }

  .paper-head {
    flex-direction: column;
  }

  .paper-layout-side {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .paper-media-grid {
    grid-template-columns: 1fr;
  }

  .paper-card-side .paper-media {
    order: -1;
  }

  .paper-figure,
  .paper-card-side .paper-figure {
    max-height: none;
  }

  .rating-grid {
    grid-template-columns: 1fr;
  }

  .photo-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 12px;
  }

  .photo-heading {
    width: 100%;
    align-items: flex-start;
    text-align: left;
  }

  .photo-title {
    max-width: 100%;
  }

  .photo-actions {
    width: 100%;
  }

  .photo-view {
    padding: 112px 0 86px;
  }

  .photo-frame {
    min-height: calc(100vh - 198px);
  }

  .photo-stage {
    height: calc(100vh - 198px);
  }

  .research-figure-page .photo-stage {
    height: min(58vh, calc(100vh - 320px));
  }

  .research-figure-page .photo-view {
    width: 100%;
    display: block;
    padding: 112px 0 86px;
  }

  .research-caption-wrap {
    width: min(1120px, calc(100% - 32px));
    margin: 18px auto 0;
  }

  .zoom-controls {
    right: 8px;
    bottom: 8px;
    width: min(260px, calc(100% - 16px));
    gap: 8px;
    padding: 8px 10px;
  }

  .zoom-slider {
    min-width: 0;
  }
}

@media (min-width: 641px) and (max-width: 980px) {
  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .research-figure-page .photo-view {
    width: min(1120px, calc(100% - 32px));
    grid-template-columns: 1fr;
    row-gap: 18px;
  }

  .research-caption-wrap {
    width: 100%;
  }
}