:root {
  color-scheme: dark;
  --show-ink: oklch(0.98 0.02 100);
  --show-muted: oklch(0.76 0.04 245);
  --show-line: oklch(1 0 0 / 0.18);
  --show-hot: oklch(0.72 0.25 352);
  --show-cyan: oklch(0.78 0.18 205);
  --show-lime: oklch(0.82 0.2 142);
  font-family:
    "Trebuchet MS", "Microsoft YaHei", "PingFang SC", "Noto Sans SC",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #05050a;
}

body.showcase-body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: #05050a;
  color: var(--show-ink);
}

body.showcase-body::selection {
  background: var(--show-cyan);
  color: #05050a;
}

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

.showcase-stage {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), oklch(0.48 0.2 320 / 0.34), transparent 28%),
    radial-gradient(circle at 18% 78%, oklch(0.58 0.18 190 / 0.28), transparent 32%),
    linear-gradient(140deg, #05050a 0%, #0b1024 52%, #030306 100%);
}

.showcase-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.showcase-nav {
  position: fixed;
  top: 22px;
  left: 22px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--show-line);
  border-radius: 999px;
  background: oklch(0.08 0.03 250 / 0.62);
  color: var(--show-ink);
  font-size: 14px;
  font-weight: 900;
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 28px oklch(0 0 0 / 0.28);
}

.showcase-nav:hover {
  transform: translateY(-2px);
}

.showcase-copy {
  position: relative;
  z-index: 4;
  display: grid;
  align-content: center;
  width: min(1120px, calc(100% - 44px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 96px 0 72px;
  pointer-events: none;
}

.showcase-kicker {
  margin: 0 0 16px;
  color: var(--show-cyan);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

.showcase-title {
  width: min-content;
  min-width: min(100%, 2em);
  margin: 0;
  font-size: clamp(86px, 18vw, 260px);
  line-height: 0.78;
  letter-spacing: 0;
  text-shadow:
    0 0 18px oklch(0.72 0.25 352 / 0.48),
    0 0 68px oklch(0.76 0.2 205 / 0.34);
}

.showcase-tagline {
  max-width: 38ch;
  margin: 26px 0 0;
  color: var(--show-muted);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 850;
  line-height: 1.5;
}

.showcase-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.showcase-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--show-line);
  border-radius: 999px;
  background: oklch(0.08 0.03 250 / 0.54);
  color: var(--show-ink);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
}

.showcase-hint {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 20;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--show-line);
  border-radius: 999px;
  background: oklch(0.08 0.03 250 / 0.62);
  color: var(--show-muted);
  font-size: 12px;
  font-weight: 900;
  backdrop-filter: blur(18px);
}

.showcase-stage::before,
.showcase-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.showcase-stage::before {
  opacity: 0.18;
  background-image:
    linear-gradient(var(--show-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--show-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 0 46%, transparent 82%);
}

.showcase-stage::after {
  background:
    linear-gradient(90deg, oklch(0 0 0 / 0.24), transparent 18%, transparent 82%, oklch(0 0 0 / 0.28)),
    linear-gradient(180deg, transparent 0%, oklch(0 0 0 / 0.5) 100%);
}

[data-effect="liquid"] .showcase-stage {
  filter: url("#liquid-filter");
}

[data-effect="liquid"] .showcase-title {
  animation: liquidPulse 2.8s ease-in-out infinite alternate;
}

[data-effect="gooey"] .showcase-stage {
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), oklch(0.8 0.22 145 / 0.32), transparent 24%),
    radial-gradient(circle at 20% 20%, oklch(0.75 0.24 352 / 0.34), transparent 28%),
    #05070b;
}

[data-effect="gooey"] .showcase-title {
  filter: url("#gooey-filter");
}

[data-effect="kinetic"] .showcase-title {
  animation: kineticSlam 1.6s cubic-bezier(0.76, 0, 0.24, 1) infinite alternate;
  transform-origin: left center;
}

[data-effect="kinetic"] .type-slice {
  position: absolute;
  z-index: 3;
  left: 8vw;
  color: transparent;
  font-size: clamp(90px, 19vw, 280px);
  font-weight: 950;
  line-height: 0.78;
  -webkit-text-stroke: 1px oklch(1 0 0 / 0.28);
  animation: sliceDrift 3s linear infinite;
  pointer-events: none;
}

[data-effect="kinetic"] .type-slice:nth-child(1) {
  top: 15vh;
}

[data-effect="kinetic"] .type-slice:nth-child(2) {
  top: 34vh;
  animation-delay: -1s;
}

[data-effect="kinetic"] .type-slice:nth-child(3) {
  top: 54vh;
  animation-delay: -2s;
}

[data-effect="glitch"] .showcase-stage {
  background: #040406;
}

[data-effect="glitch"] .showcase-title {
  position: relative;
  animation: glitchShake 640ms steps(2, end) infinite;
}

[data-effect="glitch"] .showcase-title::before,
[data-effect="glitch"] .showcase-title::after {
  content: "炫技";
  position: absolute;
  inset: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

[data-effect="glitch"] .showcase-title::before {
  color: #00e5ff;
  transform: translate(8px, -3px);
  clip-path: inset(0 0 46% 0);
}

[data-effect="glitch"] .showcase-title::after {
  color: #ff2d78;
  transform: translate(-7px, 4px);
  clip-path: inset(52% 0 0 0);
}

[data-effect="glitch"] .scanlines {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0.48;
  background:
    repeating-linear-gradient(180deg, transparent 0 4px, oklch(1 0 0 / 0.16) 5px 6px),
    linear-gradient(90deg, transparent, oklch(0.8 0.24 205 / 0.12), transparent);
  animation: scanDrift 1.1s linear infinite;
}

[data-effect="terrain"] .showcase-copy {
  align-content: end;
}

[data-effect="draw"] .showcase-stage {
  background:
    radial-gradient(circle at 78% 16%, oklch(0.78 0.2 142 / 0.28), transparent 24%),
    radial-gradient(circle at 18% 76%, oklch(0.72 0.24 352 / 0.32), transparent 30%),
    #050507;
}

.draw-board {
  position: absolute;
  inset: 7vh 5vw;
  z-index: 2;
  opacity: 0.92;
  pointer-events: none;
}

.draw-path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1600;
  stroke-dashoffset: 1600;
  color: oklch(0.82 0.2 190);
  filter: drop-shadow(0 0 12px currentColor);
  animation: drawPath 4.8s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.draw-path:nth-child(2) {
  color: oklch(0.78 0.24 338);
  animation-delay: -1.6s;
}

.draw-path:nth-child(3) {
  color: oklch(0.86 0.19 118);
  animation-delay: -3.2s;
}

[data-effect="prism"] .showcase-stage {
  perspective: 1200px;
  background:
    radial-gradient(circle at 50% 50%, oklch(0.76 0.2 205 / 0.22), transparent 34%),
    #04050a;
}

.prism-stack {
  position: absolute;
  inset: 0;
  z-index: 2;
  transform-style: preserve-3d;
  pointer-events: none;
  animation: prismOrbit 8s ease-in-out infinite alternate;
}

.prism-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(34vw, 390px);
  height: min(44vh, 420px);
  border: 1px solid oklch(1 0 0 / 0.24);
  background:
    linear-gradient(135deg, oklch(1 0 0 / 0.22), transparent),
    oklch(0.12 0.06 250 / 0.5);
  box-shadow: 0 0 48px oklch(0.72 0.22 210 / 0.22);
  transform:
    translate(-50%, -50%)
    rotateY(calc(var(--i) * 40deg))
    rotateX(62deg)
    translateZ(260px);
  backdrop-filter: blur(12px);
}

[data-effect="terminal"] .showcase-stage {
  background:
    radial-gradient(circle at 16% 20%, oklch(0.78 0.2 145 / 0.18), transparent 26%),
    #020403;
}

.terminal-window {
  position: absolute;
  right: min(7vw, 88px);
  bottom: min(8vh, 76px);
  z-index: 6;
  width: min(560px, calc(100% - 32px));
  min-height: 280px;
  padding: 18px;
  border: 1px solid oklch(0.82 0.2 145 / 0.44);
  border-radius: 10px;
  background: oklch(0.06 0.035 150 / 0.78);
  box-shadow:
    0 0 0 1px oklch(1 0 0 / 0.08),
    0 24px 80px oklch(0 0 0 / 0.4);
  color: oklch(0.84 0.2 145);
  font-family: "Consolas", "Courier New", monospace;
  backdrop-filter: blur(18px);
}

.terminal-bar {
  display: flex;
  gap: 7px;
  margin-bottom: 18px;
}

.terminal-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
}

.terminal-line {
  margin: 0 0 12px;
  font-size: clamp(14px, 2vw, 20px);
  line-height: 1.35;
  text-shadow: 0 0 12px currentColor;
}

.terminal-cursor {
  display: inline-block;
  width: 0.62em;
  height: 1em;
  margin-left: 4px;
  background: currentColor;
  vertical-align: -0.12em;
  animation: cursorBlink 0.75s steps(1) infinite;
}

[data-effect="morph"] .showcase-title {
  position: relative;
  width: auto;
  font-size: clamp(92px, 21vw, 310px);
  font-stretch: 50%;
  animation: variableMorph 2.8s cubic-bezier(0.76, 0, 0.24, 1) infinite alternate;
  -webkit-text-stroke: 2px oklch(0.78 0.2 205 / 0.72);
}

[data-effect="morph"] .showcase-title::after {
  content: "炫技";
  position: absolute;
  inset: 0;
  z-index: -1;
  color: transparent;
  -webkit-text-stroke: 1px oklch(0.82 0.22 338 / 0.4);
  transform: translate(0.08em, 0.08em);
}

[data-effect="reveal"] .showcase-stage {
  background: #05050a;
}

.reveal-stack {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.reveal-slab {
  position: absolute;
  inset: 0;
  background: var(--slab);
  clip-path: inset(0 100% 0 0);
  mix-blend-mode: screen;
  animation: slabReveal 3.4s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.reveal-slab:nth-child(2) {
  animation-delay: -1.1s;
  transform: skewY(-8deg);
}

.reveal-slab:nth-child(3) {
  animation-delay: -2.2s;
  transform: skewY(7deg);
}

[data-effect="reveal"] .showcase-title {
  clip-path: inset(0 calc((1 - var(--reveal-progress, 0)) * 100%) 0 0);
  animation: titleReveal 3.4s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

[data-effect="orbit"] .showcase-stage {
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), oklch(0.76 0.2 205 / 0.28), transparent 25%),
    #03050c;
}

.orbit-system {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  transform:
    rotateX(var(--orbit-tilt-x, 0deg))
    rotateY(var(--orbit-tilt-y, 0deg));
  transform-style: preserve-3d;
  transition: transform 240ms ease-out;
}

.orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(68vw, 760px);
  aspect-ratio: 1;
  border: 1px solid oklch(1 0 0 / 0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotateX(68deg) rotateZ(var(--rz));
  animation: orbitSpin var(--speed) linear infinite;
}

.orbit-ring::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--dot);
  box-shadow: 0 0 22px var(--dot), 0 0 60px var(--dot);
}

.scroll-cinema {
  min-height: 500vh;
  background: #030306;
}

.cinema-scene {
  position: sticky;
  top: 0;
  display: grid;
  place-items: center;
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), oklch(0.72 0.24 352 / 0.28), transparent 28%),
    conic-gradient(from calc(var(--scroll-progress, 0) * 360deg), #08111f, #23102c, #3d090c, #08111f);
}

.cinema-word {
  position: relative;
  z-index: 2;
  margin: 0;
  font-size: clamp(82px, 20vw, 280px);
  line-height: 0.78;
  transform:
    translateY(calc((var(--scroll-progress, 0) - 0.5) * -80px))
    rotate(calc((var(--scroll-progress, 0) - 0.5) * 18deg))
    scale(calc(0.86 + var(--scroll-progress, 0) * 0.36));
  text-shadow:
    calc(var(--scroll-progress, 0) * 26px) 0 #00e5ff,
    calc(var(--scroll-progress, 0) * -22px) 0 #ff2d78,
    0 0 70px oklch(0.74 0.23 352 / 0.56);
}

.cinema-strips {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.cinema-strips span {
  position: absolute;
  left: -10%;
  width: 120%;
  height: 12vh;
  background: oklch(1 0 0 / 0.12);
  transform:
    translateX(calc((var(--scroll-progress, 0) - 0.5) * 40vw))
    rotate(calc(-12deg + var(--scroll-progress, 0) * 24deg));
  mix-blend-mode: screen;
}

.cinema-strips span:nth-child(1) {
  top: 12%;
}

.cinema-strips span:nth-child(2) {
  top: 42%;
  background: oklch(0.78 0.2 205 / 0.16);
  transform:
    translateX(calc((0.5 - var(--scroll-progress, 0)) * 48vw))
    rotate(calc(14deg - var(--scroll-progress, 0) * 30deg));
}

.cinema-strips span:nth-child(3) {
  top: 70%;
  background: oklch(0.8 0.2 130 / 0.13);
}

@keyframes liquidPulse {
  from {
    filter: blur(0) contrast(1);
    transform: skewX(-2deg);
  }

  to {
    filter: blur(1px) contrast(1.3);
    transform: skewX(4deg) translateX(14px);
  }
}

@keyframes kineticSlam {
  0% {
    transform: translateX(-2vw) rotate(-4deg) scaleX(0.84);
  }

  100% {
    transform: translateX(3vw) rotate(2deg) scaleX(1.14);
  }
}

@keyframes sliceDrift {
  from {
    transform: translateX(-14vw) skewX(-18deg);
  }

  to {
    transform: translateX(82vw) skewX(18deg);
  }
}

@keyframes glitchShake {
  0%, 100% {
    transform: translate(0);
  }

  25% {
    transform: translate(5px, -2px);
  }

  50% {
    transform: translate(-7px, 4px);
  }

  75% {
    transform: translate(2px, 7px);
  }
}

@keyframes scanDrift {
  from {
    transform: translateY(-18px);
  }

  to {
    transform: translateY(18px);
  }
}

@keyframes drawPath {
  0% {
    stroke-dashoffset: 1600;
    opacity: 0;
  }

  18% {
    opacity: 1;
  }

  62% {
    stroke-dashoffset: 0;
    opacity: 1;
  }

  100% {
    stroke-dashoffset: -1600;
    opacity: 0;
  }
}

@keyframes prismOrbit {
  from {
    transform: rotateX(0deg) rotateY(-18deg) rotateZ(-2deg);
  }

  to {
    transform: rotateX(10deg) rotateY(24deg) rotateZ(4deg);
  }
}

@keyframes cursorBlink {
  50% {
    opacity: 0;
  }
}

@keyframes variableMorph {
  from {
    font-weight: 300;
    font-stretch: 55%;
    filter: blur(0);
    transform: skewX(-8deg) scaleX(0.9);
  }

  to {
    font-weight: 950;
    font-stretch: 125%;
    filter: blur(1px);
    transform: skewX(8deg) scaleX(1.08);
  }
}

@keyframes slabReveal {
  0% {
    clip-path: inset(0 100% 0 0);
  }

  42% {
    clip-path: inset(0 0 0 0);
  }

  70% {
    clip-path: inset(0 0 0 0);
  }

  100% {
    clip-path: inset(0 0 0 100%);
  }
}

@keyframes titleReveal {
  0% {
    clip-path: inset(0 100% 0 0);
    transform: translateX(-6vw);
  }

  38%,
  70% {
    clip-path: inset(0 0 0 0);
    transform: translateX(0);
  }

  100% {
    clip-path: inset(0 0 0 100%);
    transform: translateX(6vw);
  }
}

@keyframes orbitSpin {
  from {
    rotate: 0deg;
  }

  to {
    rotate: 360deg;
  }
}

@media (max-width: 680px) {
  .showcase-nav {
    top: 14px;
    left: 14px;
  }

  .showcase-copy {
    width: min(100% - 28px, 1120px);
    padding-top: 84px;
  }

  .showcase-title,
  .cinema-word {
    font-size: clamp(76px, 27vw, 142px);
  }

  .showcase-tagline {
    font-size: 16px;
  }

  .showcase-hint {
    right: 14px;
    bottom: 14px;
    max-width: calc(100% - 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .showcase-canvas {
    opacity: 0.45;
  }

  .showcase-title,
  .type-slice,
  .draw-path,
  .prism-stack,
  .reveal-slab,
  .orbit-ring,
  .scanlines {
    animation: none !important;
  }
}