:root {
  --paper: #f7f2e8;
  --ink: #23201d;
  --muted: #6b6258;
  --line: #d7c9b5;
  --green: #8fc94a;
  --coral: #f05d4f;
  --blue: #4a9de8;
  --mustard: #d7a536;
  --panel: #fffaf1;
  --shadow: 0 18px 48px rgba(35, 32, 29, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(35, 32, 29, 0.12);
  background: rgba(247, 242, 232, 0.92);
  backdrop-filter: blur(14px);
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  font-weight: 800;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  object-fit: cover;
  background: var(--panel);
  box-shadow: 4px 4px 0 var(--ink);
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links .nav-cta {
  padding: 8px 12px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--green);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.home-hero {
  display: grid;
  min-height: auto;
  padding: clamp(34px, 6vw, 78px) 0 clamp(36px, 6vw, 82px);
  border-bottom: 1px solid var(--line);
}

.hero-top {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(420px, 1fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: center;
  padding-inline: clamp(18px, 5vw, 72px);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  min-height: calc(100vh - 66px);
  padding: clamp(28px, 5vw, 72px) clamp(18px, 5vw, 72px) 48px;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow,
.section-kicker,
.card-label {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
}

.hero-lede {
  max-width: 620px;
  color: var(--muted);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.primary-action,
.secondary-action,
button {
  min-height: 46px;
  padding: 12px 18px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.primary-action,
button {
  background: var(--green);
}

.secondary-action {
  background: var(--panel);
}

.primary-action:hover,
.secondary-action:hover,
button:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.hero-visual,
.original-visual {
  margin: 0;
  overflow: hidden;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-visual img,
.original-visual img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #dbeeff;
}

.hero-visual figcaption,
.original-visual figcaption {
  padding: 14px 16px;
  border-top: 2px solid var(--ink);
  background: var(--mustard);
  font-weight: 900;
}

.meme-marquee {
  overflow: hidden;
  padding-block: 0 clamp(42px, 6vw, 78px);
}

.marquee-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
  padding: 0 clamp(18px, 5vw, 72px) 18px;
}

.marquee-heading h2 {
  max-width: 860px;
  margin-bottom: 0;
  font-size: clamp(26px, 3vw, 40px);
}

.marquee-viewport {
  overflow: hidden;
  border-block: 2px solid var(--ink);
  background: var(--ink);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 46s linear infinite;
}

.marquee-group {
  display: flex;
  gap: 18px;
  padding: 18px 9px;
}

.meme-marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-card {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  height: clamp(320px, 46vw, 620px);
  margin: 0;
  overflow: hidden;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 6px 6px 0 rgba(255, 250, 241, 0.28);
}

.marquee-card img {
  width: auto;
  height: 100%;
  max-width: none;
  object-fit: contain;
  transition: transform 420ms ease, filter 420ms ease;
}

.marquee-card:hover img {
  transform: scale(1.1);
  filter: saturate(1.08) contrast(1.04);
}

@keyframes marquee-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.content-band,
.tool-section,
.ai-section {
  padding: clamp(42px, 7vw, 88px) clamp(18px, 5vw, 72px);
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(44px, 7vw, 82px) clamp(18px, 5vw, 72px) 28px;
}

.intro-copy {
  max-width: 900px;
  color: var(--muted);
  font-size: 18px;
}

.intro-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  padding: 0 clamp(18px, 5vw, 72px) clamp(34px, 5vw, 56px);
}

.intro-details article {
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 6px 6px 0 rgba(35, 32, 29, 0.92);
}

.intro-details p {
  color: var(--muted);
}

.brief-story {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1fr);
  gap: 32px;
  padding: clamp(42px, 7vw, 82px) clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.brief-copy {
  max-width: 880px;
  color: var(--muted);
  font-size: 18px;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1fr);
  gap: 32px;
  border-top: 1px solid var(--line);
}

.story-card,
.three-columns article,
.control-panel,
.ai-workbench {
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 6px 6px 0 rgba(35, 32, 29, 0.92);
}

.story-card {
  padding: clamp(22px, 4vw, 38px);
}

.story-card p,
.three-columns p,
.tool-heading p,
.ai-copy p {
  color: var(--muted);
}

.three-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  padding-top: 20px;
}

.three-columns article {
  padding: 24px;
}

.quote-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(160px, 1fr));
  gap: 0;
  overflow-x: auto;
  border-block: 2px solid var(--ink);
  background: var(--ink);
}

.quote-strip p {
  min-height: 88px;
  margin: 0;
  padding: 20px;
  border-right: 2px solid var(--ink);
  background: var(--green);
  font-size: 18px;
  font-weight: 900;
}

.quote-strip p:nth-child(2n) {
  background: var(--blue);
}

.quote-strip p:nth-child(3n) {
  background: var(--coral);
}

.tool-section {
  background: #efe6d7;
}

.tool-page-hero {
  padding-top: clamp(28px, 5vw, 72px);
}

.tool-heading,
.ai-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: 34px;
  align-items: start;
}

.maker-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
  grid-column: 1 / -1;
}

.control-panel,
.ai-workbench {
  display: grid;
  gap: 16px;
  padding: 20px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 900;
}

input,
textarea {
  width: 100%;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 12px;
}

input[type="range"] {
  accent-color: var(--coral);
}

.upload-box {
  min-height: 94px;
  place-content: center;
  padding: 16px;
  border: 2px dashed var(--ink);
  border-radius: 8px;
  background: #fff4ce;
  text-align: center;
  cursor: pointer;
}

.upload-box input {
  border: 0;
  padding: 0;
  background: transparent;
}

.split-controls {
  display: grid;
  gap: 14px;
}

.canvas-wrap {
  display: grid;
  place-items: center;
  min-height: 520px;
  padding: 18px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: repeating-linear-gradient(
    45deg,
    #fffaf1,
    #fffaf1 16px,
    #f4eadb 16px,
    #f4eadb 32px
  );
}

canvas {
  width: min(100%, 620px);
  height: auto;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: #fff;
  box-shadow: 8px 8px 0 rgba(35, 32, 29, 0.92);
}

.ai-section {
  align-items: stretch;
}

.ai-preview {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 126px;
  padding: 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fff;
}

.ai-preview img {
  width: 96px;
  height: 96px;
  border-radius: 8px;
  object-fit: cover;
}

.ai-preview strong {
  display: block;
  margin-bottom: 4px;
}

.ai-preview p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 940px) {
  .hero-section,
  .intro-grid,
  .intro-section,
  .tool-heading,
  .ai-section,
  .brief-story,
  .maker-layout {
    grid-template-columns: 1fr;
  }

  .hero-section,
  .home-hero {
    min-height: auto;
  }

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

  .intro-details {
    grid-template-columns: 1fr;
  }

  .maker-layout {
    gap: 18px;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  h1 {
    font-size: 34px;
  }

  .hero-top {
    grid-template-columns: minmax(0, 0.86fr) minmax(190px, 1fr);
    gap: 16px;
  }

  .hero-actions a,
  .control-panel > button,
  .ai-workbench > button {
    width: 100%;
    text-align: center;
  }

  .quote-strip {
    grid-template-columns: repeat(5, 70vw);
  }

  .marquee-track {
    animation-duration: 34s;
  }

  .marquee-group {
    gap: 12px;
    padding: 12px 6px;
  }

  .marquee-card {
    height: 420px;
  }

  .tool-heading h1 {
    font-size: 38px;
  }
}

@media (max-width: 520px) {
  .hero-top {
    grid-template-columns: 1fr;
  }
}