:root {
  --paper: #f5ead7;
  --paper-deep: #e2c99c;
  --ink: #17110c;
  --night: #120f0b;
  --teal: #0b6d6e;
  --cinnabar: #b63225;
  --brass: #c3913c;
  --salt: #fff7e7;
  --muted: rgba(255, 247, 231, 0.72);
  --line: rgba(255, 247, 231, 0.16);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --kai: var(--serif);
  --hei: var(--serif);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--salt);
  background:
    radial-gradient(circle at 18% 12%, rgba(180, 50, 37, 0.16), transparent 32rem),
    radial-gradient(circle at 84% 18%, rgba(11, 109, 110, 0.22), transparent 34rem),
    linear-gradient(120deg, #120f0b 0%, #17110c 44%, #0b2225 100%);
  font-family: var(--serif);
  letter-spacing: 0;
  transition: background 420ms ease, color 420ms ease;
}

body.reading-mode {
  --muted: rgba(255, 247, 231, 0.86);
  background:
    linear-gradient(180deg, #0e0b08 0%, #16110d 48%, #0e0b08 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  font: inherit;
}

#seaCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  background: transparent;
  opacity: 1;
  transition: opacity 420ms ease, filter 420ms ease;
}

body.reading-mode #seaCanvas {
  opacity: 0.12;
  filter: grayscale(1) blur(1px);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.18;
  mix-blend-mode: overlay;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 9px 9px, 7px 7px;
  transition: opacity 420ms ease;
}

body.reading-mode .grain {
  opacity: 0.05;
}

.opening {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 20;
  pointer-events: none;
  background:
    radial-gradient(circle at center, rgba(245, 234, 215, 0.09), transparent 26rem),
    #110c08;
  animation: openingFade 3s ease forwards;
}

.opening-mark {
  font-family: var(--kai);
  font-size: 8rem;
  line-height: 0.88;
  color: #fff2d4;
  text-shadow: 0 0 44px rgba(195, 145, 60, 0.48);
  writing-mode: vertical-rl;
  transform: translateY(-0.5rem);
  animation: openingSplit 2.4s cubic-bezier(.2, .8, .2, 1) forwards;
}

.opening-line {
  position: absolute;
  bottom: 16vh;
  font-size: 1rem;
  color: rgba(255, 247, 231, 0.76);
}

@keyframes openingFade {
  0%, 72% { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

@keyframes openingSplit {
  0% { transform: translateY(0) scale(0.82); filter: blur(10px); opacity: 0; }
  35% { filter: blur(0); opacity: 1; }
  100% { transform: translateY(-1rem) scale(1.08); }
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(180deg, rgba(18, 15, 11, 0.86), rgba(18, 15, 11, 0.12));
  backdrop-filter: blur(16px);
  transition: background 300ms ease, border-color 300ms ease;
}

body.reading-mode .topbar {
  border-bottom: 1px solid rgba(255, 247, 231, 0.16);
  background: rgba(14, 11, 8, 0.94);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.62rem;
  min-width: max-content;
}

.brand span {
  color: rgba(255, 247, 231, 0.62);
  font-size: 0.78rem;
  font-family: var(--hei);
}

.brand strong {
  color: #fff0cb;
  font-size: 1.38rem;
  font-family: var(--kai);
  font-weight: 700;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
}

.nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  padding: 0 0.78rem;
  border: 1px solid transparent;
  color: rgba(255, 247, 231, 0.72);
  font-size: 0.92rem;
  font-family: var(--kai);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0.78rem;
  right: 0.78rem;
  bottom: 0.32rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 240ms ease;
}

.nav a:hover,
.nav a.active {
  color: #fff3d6;
  border-color: rgba(255, 247, 231, 0.14);
  background: rgba(255, 247, 231, 0.045);
}

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}

.round-button {
  display: grid;
  grid-template-columns: auto auto;
  place-items: center;
  gap: 0.35rem;
  min-width: 4.6rem;
  padding: 0 0.65rem;
  height: 2.45rem;
  border: 1px solid rgba(255, 247, 231, 0.24);
  border-radius: 999px;
  background: rgba(255, 247, 231, 0.08);
  cursor: pointer;
  transition: transform 220ms ease, background 220ms ease, color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.read-icon {
  font-size: 0.98rem;
}


.read-label {
  font-family: var(--kai);
  font-size: 0.9rem;
}

.bgm-icon {
  font-size: 1.05rem;
  line-height: 1;
  transition: opacity 320ms ease;
}

.bgm-label {
  font-family: var(--kai);
  font-size: 0.9rem;
}

.bgm-button[aria-pressed="true"] .bgm-icon {
  opacity: 0.42;
}

.round-button:hover {
  transform: translateY(-2px);
  background: rgba(255, 247, 231, 0.16);
}

.round-button[aria-pressed="true"] {
  color: #17110c;
  border-color: #fff1cc;
  background: #fff1cc;
  box-shadow: 0 0 0 4px rgba(255, 241, 204, 0.12), 0 12px 32px rgba(255, 241, 204, 0.2);
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 30;
  background: transparent;
}

.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cinnabar), var(--brass), var(--teal));
}

#app {
  min-height: 100vh;
  outline: none;
}

.home-hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 34rem);
  gap: 4rem;
  align-items: center;
  padding: 8rem 6vw 4rem;
  overflow: hidden;
  transition: grid-template-columns 420ms ease, min-height 420ms ease;
}

body.reading-mode .home-hero {
  grid-template-columns: minmax(0, 64rem);
  justify-content: center;
  min-height: auto;
  padding-top: 10rem;
}

.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(18, 15, 11, 0.86), rgba(18, 15, 11, 0.1) 48%, rgba(18, 15, 11, 0.52)),
    repeating-linear-gradient(115deg, rgba(255, 247, 231, 0.035) 0 1px, transparent 1px 28px);
}

.eyebrow {
  margin: 0 0 1.5rem;
  color: rgba(255, 247, 231, 0.68);
  font-family: var(--hei);
  font-size: 0.92rem;
}

.home-title {
  margin: 0;
  font-family: var(--kai);
  font-size: 7.5rem;
  line-height: 0.92;
  font-weight: 800;
}

.home-title span {
  display: inline-block;
  margin-right: 0.16em;
  color: #fff1cc;
  text-shadow:
    0 1px 0 #8f2d24,
    0 14px 60px rgba(179, 50, 37, 0.4);
}

.home-title span:last-child {
  color: #dbb166;
}

.home-copy {
  max-width: 48rem;
}

.home-copy .lead {
  width: min(42rem, 100%);
  margin: 1.6rem 0 2.2rem;
  color: rgba(255, 247, 231, 0.82);
  font-size: 1.28rem;
  line-height: 1.9;
  transition: font-size 300ms ease, color 300ms ease;
}

body.reading-mode .home-copy .lead {
  max-width: 54rem;
  color: rgba(255, 247, 231, 0.94);
  font-size: 1.42rem;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.action,
.ghost-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.1rem;
  border: 1px solid rgba(255, 247, 231, 0.18);
  background: rgba(255, 247, 231, 0.07);
  color: #fff4d9;
  cursor: pointer;
}

.action {
  border-color: rgba(195, 145, 60, 0.8);
  background: linear-gradient(135deg, rgba(182, 50, 37, 0.88), rgba(195, 145, 60, 0.78));
  box-shadow: 0 18px 44px rgba(182, 50, 37, 0.22);
}

.ghost-action:hover,
.action:hover {
  transform: translateY(-2px);
}

.route-stage {
  position: relative;
  min-height: 34rem;
  display: grid;
  place-items: center;
  transition: opacity 280ms ease, transform 280ms ease;
}

body.reading-mode .route-stage {
  display: none;
}

.route-map {
  position: relative;
  width: min(33rem, 100%);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 247, 231, 0.12);
  background:
    linear-gradient(135deg, rgba(245, 234, 215, 0.08), rgba(11, 109, 110, 0.06)),
    repeating-linear-gradient(0deg, rgba(255, 247, 231, 0.04) 0 1px, transparent 1px 2.1rem),
    repeating-linear-gradient(90deg, rgba(255, 247, 231, 0.035) 0 1px, transparent 1px 2.1rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.route-map::before {
  content: "韩江";
  position: absolute;
  top: 10%;
  left: 9%;
  color: rgba(255, 247, 231, 0.6);
  font-family: var(--kai);
  font-size: 1.8rem;
}

.route-map::after {
  content: "南洋";
  position: absolute;
  right: 10%;
  bottom: 12%;
  color: rgba(255, 247, 231, 0.76);
  font-family: var(--kai);
  font-size: 2rem;
}

.route-line {
  position: absolute;
  inset: 14%;
  border: 1px dashed rgba(255, 247, 231, 0.32);
  border-left-color: transparent;
  border-top-color: rgba(195, 145, 60, 0.82);
  transform: rotate(-18deg);
  border-radius: 46% 54% 52% 48%;
  animation: routePulse 4.8s ease-in-out infinite;
}

.route-boat {
  position: absolute;
  top: 42%;
  left: 47%;
  width: 5rem;
  height: 1.8rem;
  border-bottom: 0.5rem solid rgba(255, 247, 231, 0.82);
  border-left: 0.7rem solid transparent;
  border-right: 0.7rem solid transparent;
  transform: rotate(-19deg);
  filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.4));
}

.route-boat::before {
  content: "";
  position: absolute;
  left: 1.3rem;
  bottom: 0.35rem;
  width: 0;
  height: 0;
  border-left: 1.2rem solid rgba(195, 145, 60, 0.9);
  border-top: 2.4rem solid transparent;
}

.route-node {
  position: absolute;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: #fff1cc;
  box-shadow: 0 0 0 0.45rem rgba(255, 241, 204, 0.12);
}

.node-a { top: 18%; left: 18%; }
.node-b { top: 42%; left: 48%; }
.node-c { right: 18%; bottom: 19%; }

@keyframes routePulse {
  0%, 100% { opacity: 0.55; transform: rotate(-18deg) scale(0.98); }
  50% { opacity: 1; transform: rotate(-18deg) scale(1.02); }
}

.paper-shards {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.paper-shards span {
  position: absolute;
  display: block;
  width: 7rem;
  min-height: 3.2rem;
  padding: 0.5rem;
  color: rgba(37, 22, 12, 0.72);
  background: rgba(245, 234, 215, 0.72);
  font-family: var(--kai);
  font-size: 0.9rem;
  transform: rotate(var(--r));
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
  animation: floatShard 8s ease-in-out infinite;
}

.paper-shards span:nth-child(1) { top: 12%; right: 8%; --r: 8deg; }
.paper-shards span:nth-child(2) { left: 8%; bottom: 14%; --r: -12deg; animation-delay: -2s; }
.paper-shards span:nth-child(3) { right: 12%; bottom: 33%; --r: 16deg; animation-delay: -4s; }

@keyframes floatShard {
  0%, 100% { transform: translateY(0) rotate(var(--r)); }
  50% { transform: translateY(-1rem) rotate(var(--r)); }
}

.home-section {
  padding: 6rem 6vw;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 32rem) minmax(0, 1fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 2rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--kai);
  font-size: 3.2rem;
  line-height: 1.08;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.9;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid rgba(255, 247, 231, 0.14);
  background: rgba(255, 247, 231, 0.12);
}

body.reading-mode .portal-grid {
  border-color: rgba(255, 247, 231, 0.22);
}

.portal-card {
  position: relative;
  min-height: 31rem;
  padding: 1.2rem;
  overflow: hidden;
  background: var(--portal-bg);
  isolation: isolate;
  transition: transform 260ms ease, filter 260ms ease;
}

.portal-card:hover {
  transform: translateY(-0.5rem);
  z-index: 2;
  filter: saturate(1.08);
}

.portal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.9;
  background: var(--portal-pattern);
  transition: transform 700ms ease;
}

.portal-card:hover::before {
  transform: scale(1.08) rotate(1deg);
}

.portal-glyph {
  position: absolute;
  right: -0.28rem;
  top: 0.2rem;
  color: rgba(255, 247, 231, 0.18);
  font-family: var(--kai);
  font-size: 9rem;
  line-height: 1;
}

.portal-card h3 {
  position: relative;
  margin: 12.5rem 0 0.6rem;
  font-family: var(--kai);
  font-size: 2.1rem;
  line-height: 1.1;
}

.portal-card p {
  position: relative;
  max-width: 14rem;
  margin: 0;
  color: rgba(255, 247, 231, 0.76);
  line-height: 1.75;
  font-size: 0.98rem;
}

.portal-name {
  position: absolute;
  left: 1.2rem;
  top: 1.2rem;
  display: inline-flex;
  align-items: center;
  min-height: 2.1rem;
  padding: 0 0.6rem;
  border: 1px solid rgba(255, 247, 231, 0.18);
  background: rgba(0, 0, 0, 0.18);
  font-family: var(--kai);
}

.home-thesis {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 3rem;
  align-items: center;
  padding: 6rem 6vw 8rem;
}

.thesis-mark {
  font-family: var(--kai);
  font-size: 11rem;
  line-height: 1;
  color: rgba(255, 241, 204, 0.9);
  text-align: center;
  text-shadow: 0 26px 80px rgba(195, 145, 60, 0.28);
}

.thesis-copy {
  max-width: 48rem;
}

.thesis-copy p {
  margin: 0 0 1rem;
  color: rgba(255, 247, 231, 0.83);
  font-size: 1.15rem;
  line-height: 2;
}

.writer-page {
  min-height: 100vh;
  padding-top: 5rem;
  background:
    linear-gradient(180deg, var(--page-a), var(--page-b) 44%, var(--page-c)),
    var(--night);
}

.writer-hero {
  position: relative;
  min-height: calc(100vh - 5rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 34rem);
  gap: 4rem;
  align-items: center;
  padding: 5rem 6vw 4rem;
  overflow: hidden;
  transition: grid-template-columns 420ms ease, min-height 420ms ease;
}

body.reading-mode .writer-hero {
  grid-template-columns: minmax(0, 64rem);
  min-height: auto;
  padding-top: 8rem;
}

.writer-hero::after {
  content: "";
  position: absolute;
  left: 6vw;
  right: 6vw;
  bottom: 1.4rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.72;
}

.writer-kicker {
  margin: 0 0 1rem;
  color: var(--accent-soft);
  font-family: var(--hei);
  font-size: 0.92rem;
}

.writer-title {
  margin: 0;
  color: var(--title);
  font-family: var(--kai);
  font-size: 5rem;
  line-height: 1.04;
  font-weight: 800;
}

.writer-subtitle {
  width: min(43rem, 100%);
  margin: 1.4rem 0 2rem;
  color: var(--page-text);
  font-size: 1.22rem;
  line-height: 1.95;
  transition: font-size 300ms ease, color 300ms ease;
}

body.reading-mode .writer-subtitle {
  color: color-mix(in srgb, var(--title) 86%, white);
  font-size: 1.42rem;
}

.writer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.writer-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 2.15rem;
  padding: 0 0.7rem;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, transparent);
  background: rgba(0, 0, 0, 0.12);
  color: var(--page-text);
  font-size: 0.9rem;
}

.writer-visual {
  position: relative;
  min-height: 32rem;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  background: var(--visual-bg);
}

body.reading-mode .writer-visual {
  display: none;
}

.visual-caption {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 3;
  max-width: 18rem;
  padding: 0.8rem;
  color: var(--caption);
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  font-family: var(--kai);
  line-height: 1.7;
}

.writer-section {
  padding: 5rem 6vw;
}

.lens-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 3rem;
  align-items: start;
}

body.reading-mode .lens-grid {
  grid-template-columns: minmax(0, 44rem) minmax(0, 1fr);
}

.lens-panel {
  position: sticky;
  top: 6rem;
  padding: 1.5rem 0;
}

.lens-panel h2,
.story-column h2,
.emotion-strip h2 {
  margin: 0 0 1rem;
  color: var(--title);
  font-family: var(--kai);
  font-size: 2.7rem;
  line-height: 1.12;
}

.lens-panel p {
  margin: 0 0 1.3rem;
  color: var(--page-text);
  font-size: 1.08rem;
  line-height: 2;
}

.core-line {
  display: block;
  margin-top: 1.4rem;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--accent);
  color: var(--title);
  background: rgba(0, 0, 0, 0.14);
  font-family: var(--kai);
  font-size: 1.18rem;
  line-height: 1.7;
}

.story-column {
  display: grid;
  gap: 1rem;
}

.longform {
  position: relative;
  display: block;
  padding: 2.2rem 2.4rem 2.5rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 44%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 8%, transparent), transparent 22%),
    color-mix(in srgb, var(--page-panel) 58%, transparent);
  box-shadow: 0 24px 68px rgba(0, 0, 0, 0.18);
}

.longform::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 2rem;
  bottom: 2rem;
  width: 1px;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--accent) 56%, transparent), transparent);
}

.longform .book-kicker {
  margin: 0 0 0.6rem;
}

.article-paragraph {
  position: relative;
  margin: 0;
  color: var(--page-text);
  font-size: 1.12rem;
  line-height: 2.15;
  text-indent: 2em;
}

.article-paragraph + .article-paragraph {
  margin-top: 1.05rem;
}

.article-paragraph:first-of-type::first-letter {
  float: left;
  margin: 0.12rem 0.42rem 0 0;
  color: var(--title);
  font-size: 3.8rem;
  line-height: 0.9;
  text-indent: 0;
}

.scene {
  position: relative;
  padding: 1.3rem 1.35rem 1.45rem;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  background: color-mix(in srgb, var(--page-panel) 82%, transparent);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.scene::before {
  content: attr(data-number);
  position: absolute;
  top: 0.4rem;
  right: 0.8rem;
  color: color-mix(in srgb, var(--accent) 42%, transparent);
  font-family: var(--kai);
  font-size: 4rem;
  line-height: 1;
}

.scene h3 {
  position: relative;
  margin: 0 0 0.65rem;
  color: var(--title);
  font-family: var(--kai);
  font-size: 1.72rem;
}

.scene p {
  position: relative;
  margin: 0;
  color: var(--page-text);
  font-size: 1.05rem;
  line-height: 2;
}

body.reading-mode .lens-panel p,
body.reading-mode .scene p,
body.reading-mode .article-paragraph,
body.reading-mode .book-intro,
body.reading-mode .book-passage p {
  color: color-mix(in srgb, var(--title) 82%, white);
  font-size: 1.14rem;
}

.emotion-strip {
  padding: 4rem 6vw 5.5rem;
}

.emotion-book {
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.4rem 2.7rem 2.7rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 48%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  background:
    radial-gradient(circle at 90% 12%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 18rem),
    color-mix(in srgb, var(--page-panel) 62%, transparent);
  box-shadow: 0 24px 76px rgba(0, 0, 0, 0.2);
}

.emotion-book::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
  pointer-events: none;
}

.book-kicker {
  margin: 0 0 0.45rem;
  color: var(--accent-soft);
  font-size: 0.9rem;
}

.book-intro {
  max-width: 48rem;
  margin: 0 0 1.6rem;
  color: var(--page-text);
  font-size: 1.04rem;
  line-height: 2;
}

.book-pages {
  display: grid;
  gap: 1.2rem;
}

.book-passage {
  position: relative;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
}

.book-passage span {
  color: var(--title);
  font-size: 1.45rem;
  line-height: 1.5;
}

.book-passage p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--page-text);
  font-size: 1.08rem;
  line-height: 2.05;
}

.page-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 6vw 5rem;
}

.page-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  padding: 0 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
  background: rgba(0, 0, 0, 0.14);
}

.reveal {
  opacity: 0;
  transform: translateY(1.4rem);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Shen Congwen */
.writer-page--shen {
  --page-a: #132926;
  --page-b: #17463f;
  --page-c: #0c1918;
  --accent: #91d2bd;
  --accent-soft: #b6eadb;
  --title: #ecf7da;
  --page-text: rgba(236, 247, 218, 0.82);
  --page-panel: #14342f;
  --visual-bg: linear-gradient(180deg, #cbe8d5 0%, #6ba794 42%, #153c38 100%);
  --caption: #ecf7da;
}

.portal-card--shen {
  --portal-bg: #14342f;
  --portal-pattern:
    radial-gradient(circle at 50% 22%, rgba(236, 247, 218, 0.25), transparent 12rem),
    repeating-linear-gradient(160deg, rgba(145, 210, 189, 0.16) 0 1px, transparent 1px 24px);
}

.river-visual .water-line {
  position: absolute;
  left: -10%;
  right: -10%;
  height: 28%;
  bottom: 0;
  background:
    repeating-radial-gradient(ellipse at 50% 0%, rgba(236, 247, 218, 0.18) 0 2px, transparent 2px 18px),
    linear-gradient(180deg, transparent, rgba(12, 25, 24, 0.78));
  animation: waterLift 6s ease-in-out infinite;
}

.river-visual .boat-shape {
  position: absolute;
  left: 36%;
  top: 44%;
  width: 9rem;
  height: 2rem;
  border-bottom: 0.7rem solid #19332e;
  border-left: 1.4rem solid transparent;
  border-right: 1.4rem solid transparent;
  transform: rotate(-4deg);
}

.river-visual .boat-shape::before {
  content: "";
  position: absolute;
  left: 3.2rem;
  bottom: 0.38rem;
  width: 0;
  height: 0;
  border-left: 1.5rem solid rgba(236, 247, 218, 0.86);
  border-top: 5rem solid transparent;
}

.river-visual .ink-ring {
  position: absolute;
  width: 14rem;
  height: 14rem;
  border: 1px solid rgba(19, 41, 38, 0.18);
  border-radius: 50%;
  animation: ringBloom 5.4s ease-in-out infinite;
}

.river-visual .ring-a { left: 10%; top: 12%; }
.river-visual .ring-b { right: -10%; top: 24%; animation-delay: -2s; }
.river-visual .ring-c { left: 42%; bottom: -4%; animation-delay: -3.5s; }

@keyframes waterLift {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-0.85rem); }
}

@keyframes ringBloom {
  0%, 100% { transform: scale(0.82); opacity: 0.24; }
  50% { transform: scale(1.18); opacity: 0.55; }
}

/* Lao She */
.writer-page--lao {
  --page-a: #241411;
  --page-b: #5b2518;
  --page-c: #1d1713;
  --accent: #f0a33a;
  --accent-soft: #ffd08a;
  --title: #ffe1a8;
  --page-text: rgba(255, 233, 193, 0.84);
  --page-panel: #2b1814;
  --visual-bg: linear-gradient(160deg, #20100d, #74311c 52%, #241411);
  --caption: #ffe8be;
}

.portal-card--lao {
  --portal-bg: #3a1c14;
  --portal-pattern:
    linear-gradient(180deg, rgba(240, 163, 58, 0.18), transparent 58%),
    repeating-linear-gradient(90deg, rgba(255, 225, 168, 0.1) 0 2px, transparent 2px 20px);
}

.dock-visual .crate {
  position: absolute;
  width: 8rem;
  height: 6rem;
  border: 2px solid rgba(255, 225, 168, 0.36);
  background: rgba(49, 26, 18, 0.7);
}

.dock-visual .crate::before,
.dock-visual .crate::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(45deg, transparent 49%, rgba(255, 225, 168, 0.22) 50%, transparent 51%),
    linear-gradient(-45deg, transparent 49%, rgba(255, 225, 168, 0.22) 50%, transparent 51%);
}

.dock-visual .crate-a { left: 8%; bottom: 12%; }
.dock-visual .crate-b { left: 31%; bottom: 20%; transform: rotate(-4deg); }
.dock-visual .crate-c { right: 10%; bottom: 14%; transform: rotate(5deg); }

.dock-visual .sign {
  position: absolute;
  top: 12%;
  left: 9%;
  padding: 0.6rem 0.8rem;
  background: #aa2d1e;
  color: #ffe1a8;
  border: 1px solid rgba(255, 225, 168, 0.32);
  font-family: var(--kai);
  font-size: 2.2rem;
  transform: rotate(-3deg);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.34);
}

.dock-visual .bowl {
  position: absolute;
  right: 18%;
  top: 38%;
  width: 10rem;
  height: 4.5rem;
  border-radius: 0 0 6rem 6rem;
  background: #f7dca4;
  box-shadow: inset 0 -1.2rem 0 rgba(139, 58, 29, 0.38), 0 1.2rem 2.4rem rgba(0, 0, 0, 0.28);
}

.dock-visual .steam {
  position: absolute;
  right: 28%;
  top: 18%;
  width: 0.16rem;
  height: 7rem;
  background: rgba(255, 225, 168, 0.36);
  filter: blur(1px);
  animation: steamWaver 2.4s ease-in-out infinite;
}

.dock-visual .steam-b { right: 34%; animation-delay: -0.8s; }
.dock-visual .steam-c { right: 24%; animation-delay: -1.4s; }

@keyframes steamWaver {
  0%, 100% { transform: translateY(0) skewX(-12deg); opacity: 0.25; }
  50% { transform: translateY(-1.6rem) skewX(18deg); opacity: 0.72; }
}

/* Yang Jiang */
.writer-page--yang {
  --page-a: #3d3427;
  --page-b: #efe0c6;
  --page-c: #5d4b36;
  --accent: #a0793d;
  --accent-soft: #ffe1a8;
  --title: #fff5df;
  --page-text: rgba(255, 245, 223, 0.84);
  --page-panel: #5b4834;
  --visual-bg: linear-gradient(180deg, #2b251d, #7e694d 52%, #ecd8b5);
  --caption: #fff5df;
}

.portal-card--yang {
  --portal-bg: #5b4834;
  --portal-pattern:
    radial-gradient(circle at 50% 18%, rgba(255, 225, 168, 0.35), transparent 10rem),
    repeating-linear-gradient(0deg, rgba(255, 245, 223, 0.1) 0 1px, transparent 1px 32px);
}

.lamp-visual .lamp-glow {
  position: absolute;
  left: 50%;
  top: 17%;
  width: 16rem;
  height: 16rem;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 225, 168, 0.84), rgba(255, 225, 168, 0.14) 54%, transparent 70%);
  animation: lampBreathe 4.2s ease-in-out infinite;
}

.lamp-visual .lamp {
  position: absolute;
  left: 50%;
  top: 18%;
  width: 6rem;
  height: 8rem;
  transform: translateX(-50%);
  background:
    linear-gradient(90deg, transparent 18%, rgba(255, 245, 223, 0.86) 18% 82%, transparent 82%),
    linear-gradient(180deg, rgba(255, 225, 168, 0.88), rgba(80, 61, 39, 0.82));
  clip-path: polygon(20% 0, 80% 0, 100% 58%, 66% 100%, 34% 100%, 0 58%);
}

.lamp-visual .letter-sheet {
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: 13%;
  min-height: 12rem;
  padding: 1.2rem;
  background: rgba(255, 245, 223, 0.86);
  color: #3d3427;
  font-family: var(--kai);
  line-height: 1.9;
  transform: rotate(-2deg);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

@keyframes lampBreathe {
  0%, 100% { opacity: 0.56; transform: translateX(-50%) scale(0.96); }
  50% { opacity: 0.86; transform: translateX(-50%) scale(1.08); }
}

/* Shi Tiesheng */
.writer-page--shi {
  --page-a: #141411;
  --page-b: #2d2c24;
  --page-c: #0c0c0a;
  --accent: #c6c0a6;
  --accent-soft: #e4ddbd;
  --title: #f0ead0;
  --page-text: rgba(240, 234, 208, 0.82);
  --page-panel: #1f1f1a;
  --visual-bg: radial-gradient(circle at 54% 26%, #d8d0aa 0 8%, transparent 9%), linear-gradient(180deg, #0c0c0a, #2d2c24);
  --caption: #f0ead0;
}

.portal-card--shi {
  --portal-bg: #202019;
  --portal-pattern:
    radial-gradient(circle at 68% 18%, rgba(198, 192, 166, 0.34), transparent 7rem),
    repeating-linear-gradient(145deg, rgba(240, 234, 208, 0.08) 0 1px, transparent 1px 34px);
}

.fate-visual .path-ring {
  position: absolute;
  left: 50%;
  top: 52%;
  width: 21rem;
  height: 21rem;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(240, 234, 208, 0.32);
  border-radius: 50%;
}

.fate-visual .path-ring::before,
.fate-visual .path-ring::after {
  content: "";
  position: absolute;
  inset: 2.6rem;
  border: 1px dashed rgba(240, 234, 208, 0.22);
  border-radius: 50%;
}

.fate-visual .path-ring::after {
  inset: 5.4rem;
}

.fate-visual .step {
  position: absolute;
  left: 18%;
  bottom: 14%;
  width: 64%;
  height: 1.2rem;
  background: rgba(240, 234, 208, 0.16);
  box-shadow: 0 -2.4rem 0 rgba(240, 234, 208, 0.1), 0 -4.8rem 0 rgba(240, 234, 208, 0.07);
}

.fate-visual .question-mark {
  position: absolute;
  left: 50%;
  top: 38%;
  transform: translate(-50%, -50%);
  font-family: var(--kai);
  font-size: 9rem;
  color: rgba(240, 234, 208, 0.86);
  animation: slowTurn 14s linear infinite;
}

@keyframes slowTurn {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Eileen Chang */
.writer-page--zhang {
  --page-a: #200d12;
  --page-b: #4b1f2b;
  --page-c: #0f0b0b;
  --accent: #d7ad5c;
  --accent-soft: #ffcf7a;
  --title: #ffe4b0;
  --page-text: rgba(255, 236, 199, 0.82);
  --page-panel: #2a1218;
  --visual-bg: linear-gradient(135deg, #12090b, #5d2433 50%, #15100e);
  --caption: #ffe4b0;
}

.portal-card--zhang {
  --portal-bg: #35131c;
  --portal-pattern:
    linear-gradient(135deg, rgba(215, 173, 92, 0.22), transparent 46%),
    repeating-linear-gradient(45deg, rgba(255, 228, 176, 0.08) 0 1px, transparent 1px 18px);
}

.deco-visual .rain-window {
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(215, 173, 92, 0.42);
  background:
    repeating-linear-gradient(90deg, rgba(255, 228, 176, 0.12) 0 1px, transparent 1px 3.2rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent);
}

.deco-visual .rain-window::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(100deg, transparent 0 18px, rgba(255, 236, 199, 0.24) 18px 20px);
  animation: rainSlide 1.9s linear infinite;
}

.deco-visual .bangle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 13rem;
  height: 13rem;
  transform: translate(-50%, -50%);
  border: 1.35rem solid rgba(215, 173, 92, 0.9);
  border-radius: 50%;
  box-shadow: inset 0 0 2rem rgba(0, 0, 0, 0.54), 0 0 3rem rgba(215, 173, 92, 0.22);
}

.deco-visual .fabric {
  position: absolute;
  left: 9%;
  bottom: 8%;
  width: 35%;
  height: 26%;
  background:
    linear-gradient(45deg, rgba(215, 173, 92, 0.3), transparent),
    repeating-linear-gradient(0deg, #401622 0 0.8rem, #621f32 0.8rem 1.6rem);
  transform: rotate(8deg);
}

@keyframes rainSlide {
  to { transform: translateY(2rem); }
}

@media (max-width: 1100px) {
  .portal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portal-card:last-child {
    grid-column: 1 / -1;
    min-height: 22rem;
  }

  .home-hero,
  .writer-hero,
  .home-thesis,
  .lens-grid {
    grid-template-columns: 1fr;
  }

  body.reading-mode .lens-grid {
    grid-template-columns: 1fr;
  }

  .route-stage {
    min-height: 25rem;
  }

  .lens-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .topbar {
    grid-template-columns: 1fr auto;
    gap: 0.75rem;
    padding: 0.8rem;
  }

  .nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .home-hero,
  .writer-hero {
    padding: 8.6rem 1.1rem 3rem;
  }

  .home-title {
    font-size: 4.6rem;
  }

  .writer-title {
    font-size: 3.3rem;
  }

  .writer-visual {
    min-height: 24rem;
  }

  .home-section,
  .writer-section,
  .emotion-strip,
  .home-thesis {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }

  .section-head,
  .emotion-grid,
  .emotion-stage,
  .book-passage {
    grid-template-columns: 1fr;
  }

  .longform,
  .emotion-book {
    padding: 1.5rem 1.25rem 1.7rem;
  }

  .longform::before {
    display: none;
  }

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

  .portal-card {
    min-height: 22rem;
  }

  .opening-mark {
    font-size: 5.4rem;
  }
}