:root {
  --ink: #0b1c22;
  --ink-mid: #16343d;
  --ink-soft: #1e4450;
  --foam: #f6f0e8;
  --foam-dim: #e8dfd2;
  --jade: #2ec4b6;
  --jade-deep: #1a9f94;
  --coral: #ff7a59;
  --coral-soft: #ff9b82;
  --mist: rgba(246, 240, 232, 0.72);
  --line: rgba(46, 196, 182, 0.28);
  --glass: rgba(22, 52, 61, 0.72);
  --shadow: 0 18px 48px rgba(4, 14, 18, 0.45);
  --radius: 18px;
  --max: 1080px;
  --font-display: "ZCOOL QingKe HuangYou", "Ma Shan Zheng", "PingFang SC", cursive;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--foam);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(46, 196, 182, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(255, 122, 89, 0.14), transparent 50%),
    linear-gradient(165deg, var(--ink) 0%, var(--ink-mid) 42%, #0f262c 100%);
  background-attachment: fixed;
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
}

body.lat-lock {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--jade);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--coral-soft);
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.25;
  font-weight: 400;
  letter-spacing: 0.02em;
}

p {
  margin: 0 0 1em;
}

.lat-wrap {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

/* promo top rail */
.lat-promo-band {
  background: rgba(8, 20, 24, 0.55);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 10px 0 6px;
}

#lat-promo-rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 8px;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 12px;
}

.lat-promo-cell {
  width: 70px;
  text-align: center;
}

.lat-promo-cell img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
  margin: 0 auto;
  transition: transform 0.2s ease;
}

.lat-promo-cell a:hover img {
  transform: translateY(-3px) scale(1.04);
}

.lat-promo-cap {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* top bar */
.lat-topbar {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(11, 28, 34, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.lat-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 12px;
}

.lat-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--foam);
  text-decoration: none;
}

.lat-brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.lat-brand strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.06em;
}

.lat-nav {
  display: none;
  gap: 8px 18px;
  align-items: center;
}

.lat-nav a {
  color: var(--foam-dim);
  text-decoration: none;
  font-size: 0.92rem;
  position: relative;
}

.lat-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--jade), var(--coral));
  transition: width 0.25s ease;
}

.lat-nav a:hover {
  color: var(--foam);
}

.lat-nav a:hover::after {
  width: 100%;
}

.lat-menu-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--glass);
  display: grid;
  place-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 0;
}

.lat-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--foam);
  transition: 0.25s ease;
}

.lat-menu-btn.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.lat-menu-btn.is-active span:nth-child(2) {
  opacity: 0;
}

.lat-menu-btn.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.lat-nav-drawer {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 16px 16px;
  border-top: 1px solid var(--line);
  background: rgba(11, 28, 34, 0.95);
}

.lat-nav-drawer.is-open {
  display: flex;
}

.lat-nav-drawer a {
  color: var(--foam);
  text-decoration: none;
  padding: 12px 10px;
  border-radius: 10px;
}

.lat-nav-drawer a:hover {
  background: rgba(46, 196, 182, 0.12);
}

@media (min-width: 860px) {
  .lat-nav {
    display: flex;
  }
  .lat-menu-btn {
    display: none;
  }
  .lat-nav-drawer {
    display: none !important;
  }
}

/* sticky dock under nav */
.lat-sticky-dock {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 70;
  background: rgba(14, 34, 40, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  padding: 8px 12px;
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.lat-sticky-dock.is-shown {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

#lat-dock-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: var(--max);
  margin: 0 auto;
}

.lat-dock-chip {
  width: calc(25% - 8px);
  max-width: 72px;
  display: flex;
  justify-content: center;
  text-decoration: none;
}

.lat-dock-chip img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease;
}

.lat-dock-chip:hover img {
  transform: translateY(-2px);
}

@media (min-width: 860px) {
  .lat-dock-chip {
    width: calc(12.5% - 8px);
  }
}

/* hero — brand first, no download CTA */
.lat-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 36px;
  isolation: isolate;
}

.lat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(11, 28, 34, 0.55) 0%, rgba(11, 28, 34, 0.2) 45%, transparent 70%),
    url("screen-manga-serial.jpg") center / cover no-repeat;
  opacity: 0.42;
  z-index: -2;
  animation: lat-drift 18s ease-in-out infinite alternate;
}

.lat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, var(--ink) 100%);
  z-index: -1;
}

@keyframes lat-drift {
  from { transform: scale(1.05) translateY(0); }
  to { transform: scale(1.12) translateY(-2%); }
}

.lat-hero-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  animation: lat-fade-up 0.8s ease both;
}

.lat-hero-mark img {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.lat-hero-mark span {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 3.6rem);
  letter-spacing: 0.08em;
  background: linear-gradient(120deg, var(--foam) 20%, var(--jade) 70%, var(--coral-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lat-hero h1 {
  font-size: clamp(1.45rem, 4.6vw, 2.1rem);
  margin: 0 0 12px;
  max-width: 18em;
  animation: lat-fade-up 0.8s ease 0.12s both;
}

.lat-hero-lead {
  max-width: 34em;
  color: var(--mist);
  font-size: 1.02rem;
  animation: lat-fade-up 0.8s ease 0.22s both;
}

@keyframes lat-fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* crumbs */
.lat-crumb {
  padding: 18px 0 0;
  font-size: 0.88rem;
  color: var(--mist);
}

.lat-crumb a {
  color: var(--jade);
  text-decoration: none;
}

.lat-crumb span {
  margin: 0 6px;
  opacity: 0.5;
}

/* content shells */
.lat-paper {
  background: linear-gradient(180deg, rgba(246, 240, 232, 0.97), rgba(232, 223, 210, 0.95));
  color: #1a2a30;
  border-radius: 28px 28px 0 0;
  margin-top: 12px;
  padding: 36px 0 64px;
  box-shadow: 0 -20px 60px rgba(0, 0, 0, 0.25);
}

.lat-paper a {
  color: var(--jade-deep);
}

.lat-paper h1,
.lat-paper h2,
.lat-paper h3 {
  color: #10262e;
}

.lat-section {
  padding: 28px 0;
}

.lat-section + .lat-section {
  border-top: 1px dashed rgba(26, 42, 48, 0.12);
}

.lat-kicker {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 8px;
  font-family: var(--font-body);
}

.lat-section h2 {
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  margin: 0 0 14px;
}

.lat-section h3 {
  font-size: 1.15rem;
  margin: 1.4em 0 0.55em;
  color: #1e4450;
}

.lat-rise {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.lat-rise.is-in {
  opacity: 1;
  transform: none;
}

/* layouts */
.lat-split {
  display: grid;
  gap: 22px;
  align-items: center;
}

@media (min-width: 780px) {
  .lat-split {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
  }
  .lat-split.is-flip {
    grid-template-columns: 0.95fr 1.05fr;
  }
  .lat-split.is-flip .lat-shot {
    order: -1;
  }
}

.lat-shot {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(16, 38, 46, 0.18);
  background: #10262e;
}

.lat-shot img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top center;
  max-height: 520px;
}

.lat-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(46, 196, 182, 0.25);
  border-radius: 22px;
  pointer-events: none;
}

.lat-shot-wide img {
  aspect-ratio: 16 / 10;
  max-height: 360px;
  object-position: center;
}

.lat-mosaic {
  display: grid;
  gap: 14px;
}

@media (min-width: 700px) {
  .lat-mosaic {
    grid-template-columns: repeat(2, 1fr);
  }
}

.lat-tile {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(30, 68, 80, 0.1);
  border-radius: 18px;
  padding: 18px 18px 16px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.lat-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(16, 38, 46, 0.12);
}

.lat-tile h3 {
  margin-top: 0;
}

.lat-tile img {
  border-radius: 12px;
  margin-bottom: 12px;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  width: 100%;
}

.lat-prose p {
  text-align: justify;
  hyphens: auto;
}

.lat-timeline {
  position: relative;
  padding-left: 22px;
}

.lat-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--jade), var(--coral));
  border-radius: 2px;
}

.lat-timeline article {
  position: relative;
  margin-bottom: 22px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.48);
  border-radius: 14px;
}

.lat-timeline article::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 20px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 122, 89, 0.25);
}

.lat-quote {
  margin: 20px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--jade);
  background: rgba(46, 196, 182, 0.1);
  border-radius: 0 14px 14px 0;
  font-size: 1.02rem;
  color: #16343d;
}

.lat-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.lat-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lat-btn-primary {
  background: linear-gradient(120deg, var(--coral), #ff946f);
  color: #fff !important;
  box-shadow: 0 10px 24px rgba(255, 122, 89, 0.35);
}

.lat-btn-ghost {
  background: transparent;
  color: #16343d !important;
  border: 1px solid rgba(22, 52, 61, 0.25);
}

.lat-btn:hover {
  transform: translateY(-2px);
}

.lat-ink-band {
  margin: 28px calc(50% - 50vw);
  padding: 36px 16px;
  width: 100vw;
  background:
    radial-gradient(circle at 20% 30%, rgba(46, 196, 182, 0.18), transparent 40%),
    linear-gradient(120deg, #10262e, #1a3f4a 55%, #143039);
  color: var(--foam);
}

.lat-ink-band .lat-wrap {
  width: min(100% - 32px, var(--max));
}

.lat-ink-band h2,
.lat-ink-band h3 {
  color: var(--foam);
}

.lat-ink-band p {
  color: var(--mist);
}

.lat-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 4px;
}

.lat-chip {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(46, 196, 182, 0.14);
  border: 1px solid rgba(46, 196, 182, 0.28);
  font-size: 0.82rem;
  color: var(--jade);
}

.lat-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 18px 0;
}

@media (min-width: 700px) {
  .lat-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.lat-stat {
  text-align: center;
  padding: 16px 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(246, 240, 232, 0.12);
}

.lat-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--jade);
}

.lat-stat span {
  font-size: 0.82rem;
  color: var(--mist);
}

/* legal pages */
.lat-legal .lat-section p,
.lat-legal li {
  color: #2a3d44;
}

.lat-legal ul {
  padding-left: 1.2em;
}

.lat-legal li {
  margin-bottom: 0.45em;
}

/* error pages */
.lat-error {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 48px 16px;
}

.lat-error-code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 18vw, 7rem);
  background: linear-gradient(120deg, var(--jade), var(--coral));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 8px;
  animation: lat-pulse 2.8s ease-in-out infinite;
}

@keyframes lat-pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.15); }
}

.lat-error h1 {
  margin: 0 0 10px;
  font-size: 1.5rem;
}

.lat-error p {
  color: var(--mist);
  max-width: 28em;
  margin-inline: auto;
}

/* footer */
.lat-foot {
  background: #081418;
  border-top: 1px solid var(--line);
  padding: 36px 0 28px;
  color: var(--mist);
  font-size: 0.9rem;
}

.lat-foot-grid {
  display: grid;
  gap: 22px;
}

@media (min-width: 720px) {
  .lat-foot-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.lat-foot strong {
  color: var(--foam);
  font-family: var(--font-display);
  font-size: 1.2rem;
  display: block;
  margin-bottom: 8px;
}

.lat-foot a {
  color: var(--foam-dim);
  text-decoration: none;
  display: inline-block;
  margin: 4px 0;
}

.lat-foot a:hover {
  color: var(--jade);
}

.lat-copy {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(246, 240, 232, 0.08);
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.75;
}

/* utility */
.lat-muted {
  color: #4a6068;
}

.lat-glow-line {
  height: 3px;
  width: 64px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--jade), var(--coral));
  margin: 0 0 14px;
}