:root {
  --blue: #168de2;
  --blue-dark: #086fb8;
  --ink: #111111;
  --paper: #f4efdf;
  --acid: #dfff00;
  --yellow: #ffc928;
  --white: #fffdf5;
  --border: 3px solid var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  overflow-x: hidden;
}
button, a { font: inherit; }
button { color: inherit; }
a { color: inherit; }

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  z-index: 99;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.topbar {
  position: relative;
  z-index: 5;
  height: 82px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 4vw;
  border-bottom: var(--border);
  background: var(--paper);
}
.brand, .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 1000;
  letter-spacing: -1.5px;
  text-decoration: none;
}
.topbar nav { display: flex; align-items: center; gap: 32px; }
.topbar nav a, .topbar nav button {
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 900;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.topbar nav button {
  padding: 0;
  border: 0;
  border-bottom: 2px solid var(--ink);
  background: transparent;
  cursor: pointer;
}
.topbar > .stamp-button { justify-self: end; }

.plane-logo {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border: 3px solid var(--ink);
  border-radius: 47% 53% 42% 58% / 55% 42% 58% 45%;
  background: var(--blue);
  transform: rotate(-4deg);
}
.plane-logo span {
  width: 23px;
  height: 20px;
  display: block;
  background: var(--white);
  clip-path: polygon(0 44%, 100% 0, 68% 100%, 48% 64%, 27% 80%);
  transform: rotate(-7deg);
}
.plane-logo.mini { width: 38px; height: 38px; border-width: 2px; }
.plane-logo.mini span { width: 20px; height: 17px; }

.stamp-button, .big-button {
  cursor: pointer;
  text-decoration: none;
  border: var(--border);
  color: var(--ink);
  background: var(--acid);
  font-weight: 1000;
  box-shadow: 5px 5px 0 var(--ink);
  transition: transform .15s ease, box-shadow .15s ease;
}
.stamp-button { padding: 12px 17px; transform: rotate(1.5deg); }
.stamp-button:hover, .big-button:hover { transform: translate(3px, 3px) rotate(-1deg); box-shadow: 2px 2px 0 var(--ink); }

.hero {
  height: calc(100svh - 82px);
  min-height: 680px;
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(30px, 4vw, 76px);
  padding: clamp(30px, 4vh, 52px) 6vw;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 75%, rgba(22,141,226,.16) 0 2px, transparent 3px) 0 0 / 24px 24px,
    var(--paper);
}
.hero::before {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  border: 4px solid var(--ink);
  border-radius: 44% 56% 53% 47% / 45% 41% 59% 55%;
  background: var(--blue);
  right: -130px;
  top: -170px;
  transform: rotate(8deg);
}
.hero-copy { position: relative; z-index: 2; max-width: 720px; }
.eyebrow {
  display: inline-block;
  margin: 0 0 20px;
  padding: 7px 10px;
  border: 2px solid var(--ink);
  background: var(--acid);
  font-size: 12px;
  font-weight: 1000;
  letter-spacing: 1.4px;
  transform: rotate(-1deg);
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 18px;
  font-size: clamp(58px, 6.2vw, 112px);
  line-height: .77;
  letter-spacing: -.085em;
  font-weight: 1000;
}
h1 span, .claim-intro h2 span { color: var(--blue); -webkit-text-stroke: 3px var(--ink); paint-order: stroke fill; }
.hero-lede {
  max-width: 590px;
  font-family: "Segoe Print", "Comic Sans MS", cursive;
  font-size: clamp(17px, 1.45vw, 23px);
  line-height: 1.25;
  transform: rotate(-1deg);
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 24px; }
.big-button {
  min-width: 270px;
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding: 18px 19px;
  font-size: 15px;
}
.big-button b { font-size: 24px; line-height: 1; }
.text-link { font-weight: 900; text-transform: uppercase; text-underline-offset: 5px; }

.paper-card {
  position: relative;
  z-index: 2;
  width: min(38vw, 620px, calc(100svh - 205px));
  max-height: calc(100svh - 150px);
  justify-self: center;
  padding: 18px 18px 72px;
  border: var(--border);
  background: var(--white);
  box-shadow: 15px 17px 0 rgba(17,17,17,.96);
}
.paper-card img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; filter: contrast(1.03) saturate(.92); border: 2px solid var(--ink); }
.tilted-right { transform: rotate(3deg); }
.scribble { position: absolute; bottom: 13px; left: 28px; font: 900 19px/1 "Segoe Print", cursive; transform: rotate(-2deg); }
.tape { position: absolute; z-index: 3; width: 120px; height: 33px; background: rgba(223,255,0,.72); border: 1px solid rgba(17,17,17,.24); }
.tape-a { top: -18px; left: 40%; transform: rotate(-6deg); }
.orbit-note {
  position: absolute;
  z-index: 3;
  padding: 12px 15px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  font: 1000 13px/1.05 "Arial Narrow", Arial, sans-serif;
  box-shadow: 4px 4px 0 var(--ink);
}
.note-one { right: 3vw; bottom: 13%; transform: rotate(9deg); }
.note-two { left: 48%; top: 9%; transform: rotate(-6deg); background: var(--white); }

.ticker { overflow: hidden; border-block: var(--border); background: var(--ink); color: var(--acid); transform: rotate(-.45deg) scale(1.01); }
.ticker div { width: max-content; padding: 15px 0; font-size: 20px; font-weight: 1000; letter-spacing: .06em; animation: ticker 28s linear infinite; }
@keyframes ticker { to { transform: translateX(-50%); } }

.manifesto { padding: 9vw 5vw; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 5vw; }
.section-heading p { max-width: 190px; font: 900 15px/1.2 "Segoe Print", cursive; transform: rotate(-4deg); }
.section-heading h2, .claim-intro h2, .preview-copy h2 {
  margin: 0;
  text-align: right;
  font-size: clamp(58px, 8vw, 132px);
  line-height: .8;
  letter-spacing: -.075em;
  font-weight: 1000;
}
.meme-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5vw 4vw; align-items: start; }
.meme-card { position: relative; border: var(--border); padding: 18px; box-shadow: 12px 12px 0 var(--ink); }
.meme-card img { width: 100%; aspect-ratio: 1; display: block; object-fit: cover; border: 2px solid var(--ink); background: var(--white); }
.meme-number { position: absolute; z-index: 2; top: -18px; left: -14px; padding: 8px 11px; border: 2px solid var(--ink); background: var(--white); font-weight: 1000; transform: rotate(-6deg); }
.meme-copy { padding: 22px 5px 4px; }
.meme-copy .tag { display: inline-block; margin-bottom: 12px; padding: 5px 8px; border: 2px solid var(--ink); background: var(--paper); font-size: 11px; font-weight: 1000; }
.meme-copy h3 { margin-bottom: 17px; font-size: clamp(31px, 4.1vw, 66px); line-height: .9; letter-spacing: -.055em; }
.meme-copy span { font: 900 17px/1.35 "Segoe Print", cursive; }
.yellow-card { background: var(--yellow); transform: rotate(-1.4deg); }
.blue-card { color: var(--white); background: var(--blue); transform: rotate(1.3deg); }
.offset-card { margin-top: 8vw; }
.cream-card { background: var(--white); }
.wide-card { grid-column: 1 / -1; display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: center; transform: rotate(-.7deg); }
.wide-card .meme-copy h3 { font-size: clamp(38px, 5vw, 76px); }

.claim-section {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 7vw;
  padding: 9vw 7vw;
  color: var(--white);
  background: var(--blue);
  border-block: var(--border);
}
.claim-intro h2 { text-align: left; color: var(--white); }
.claim-intro h2 span { color: var(--acid); }
.claim-intro > p:not(.eyebrow) { max-width: 600px; margin: 28px 0; font: 800 20px/1.4 "Segoe Print", cursive; }
.dark-button { background: var(--ink); color: var(--acid); border-color: var(--white); box-shadow: 6px 6px 0 var(--white); }
.claim-intro small { display: block; max-width: 430px; margin-top: 20px; font-weight: 800; }
.claim-steps { margin: 0; padding: 0; list-style: none; border-top: 3px solid var(--ink); }
.claim-steps li { display: grid; grid-template-columns: 100px 1fr; gap: 25px; padding: 27px 15px; border-bottom: 3px solid var(--ink); transition: background .2s, color .2s; }
.claim-steps li:hover { color: var(--ink); background: var(--acid); transform: rotate(-.5deg) scale(1.01); }
.step-no { font: 1000 40px/1 Arial, sans-serif; -webkit-text-stroke: 1px var(--ink); }
.claim-steps h3 { margin-bottom: 7px; font-size: 29px; line-height: 1; }
.claim-steps p { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.3; }

.bot-preview { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 8vw; padding: 9vw 9vw 10vw; background: var(--acid); }
.phone { width: min(100%, 470px); justify-self: center; border: 4px solid var(--ink); border-radius: 34px; overflow: hidden; background: #b8d8ec; box-shadow: 14px 15px 0 var(--ink); transform: rotate(-2deg); }
.phone-top { display: flex; align-items: center; gap: 11px; padding: 16px 19px; border-bottom: 3px solid var(--ink); background: var(--white); }
.phone-top div { display: grid; }
.phone-top small { color: #555; }
.chat-area { min-height: 570px; display: flex; flex-direction: column; gap: 18px; padding: 24px 18px; background: radial-gradient(circle at 50% 50%, rgba(255,255,255,.58) 0 1px, transparent 2px) 0 0 / 25px 25px, #c9e0ee; }
.bubble { max-width: 83%; padding: 13px 15px; border: 2px solid var(--ink); border-radius: 15px; font-size: 14px; line-height: 1.35; box-shadow: 3px 3px 0 var(--ink); }
.bot-bubble { align-self: flex-start; background: var(--white); border-bottom-left-radius: 3px; }
.user-bubble { align-self: flex-end; background: #d8ffb2; border-bottom-right-radius: 3px; }
.approved { background: var(--acid); }
.preview-copy h2 { text-align: left; font-size: clamp(55px, 7vw, 115px); }
.preview-copy h2 i { color: var(--blue); font-style: normal; }
.preview-copy > p:last-child { max-width: 560px; margin-top: 28px; font: 800 20px/1.4 "Segoe Print", cursive; }

footer { min-height: 130px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 25px; padding: 25px 4vw; border-top: var(--border); background: var(--paper); }
footer > p { margin: 0; font-size: 12px; font-weight: 1000; letter-spacing: 1px; text-align: center; }
footer > button { justify-self: end; }

#bot-dialog { width: min(92vw, 610px); padding: 35px; border: 4px solid var(--ink); background: var(--paper); box-shadow: 14px 14px 0 var(--ink); }
#bot-dialog::backdrop { background: rgba(22,141,226,.72); backdrop-filter: blur(3px); }
#bot-dialog h2 { margin-bottom: 15px; font-size: 50px; line-height: .9; letter-spacing: -.05em; }
#bot-dialog p:not(.eyebrow) { font: 800 17px/1.35 "Segoe Print", cursive; }
#bot-dialog .big-button { width: 100%; }
.dialog-close { position: absolute; top: 9px; right: 13px; border: 0; background: none; font-size: 42px; cursor: pointer; }
.hidden { display: none !important; }
.social-notice {
  position: fixed;
  z-index: 120;
  left: 50%;
  bottom: 24px;
  padding: 13px 18px;
  border: var(--border);
  background: var(--acid);
  font-weight: 1000;
  box-shadow: 5px 5px 0 var(--ink);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px) rotate(-1deg);
  transition: opacity .18s ease, transform .18s ease;
}
.social-notice.show { opacity: 1; transform: translate(-50%, 0) rotate(-1deg); }

@media (max-width: 900px) {
  .topbar { grid-template-columns: 1fr auto; height: 74px; padding: 0 18px; }
  .topbar nav { display: none; }
  .topbar > .stamp-button { font-size: 11px; padding: 10px; }
  .brand { font-size: 21px; }
  .plane-logo { width: 38px; height: 38px; }
  .hero { height: auto; min-height: auto; grid-template-columns: 1fr; padding: 65px 22px 90px; }
  .hero::before { width: 360px; height: 360px; right: -210px; top: 250px; }
  h1 { font-size: clamp(67px, 20vw, 118px); }
  .hero-art { width: 88%; max-height: none; margin-top: 45px; }
  .note-two { left: auto; right: 10px; top: 45%; }
  .note-one { bottom: 4%; }
  .section-heading { display: block; }
  .section-heading h2 { text-align: left; font-size: clamp(58px, 15vw, 100px); }
  .section-heading p { margin-bottom: 35px; }
  .meme-grid { grid-template-columns: 1fr; gap: 55px; }
  .offset-card { margin-top: 0; }
  .wide-card { grid-column: auto; display: block; }
  .claim-section, .bot-preview { grid-template-columns: 1fr; padding: 85px 24px; }
  .claim-intro { margin-bottom: 45px; }
  .claim-intro h2, .preview-copy h2 { font-size: clamp(58px, 16vw, 102px); }
  .bot-preview .phone { order: 2; margin-top: 35px; }
  .bot-preview .preview-copy { order: 1; }
  footer { grid-template-columns: 1fr auto; }
  footer > p { display: none; }
}

@media (max-width: 540px) {
  .topbar > .stamp-button { box-shadow: 3px 3px 0 var(--ink); }
  .hero-lede { font-size: 18px; }
  .hero-actions { align-items: stretch; }
  .big-button { width: 100%; min-width: 0; }
  .text-link { width: 100%; }
  .paper-card { padding: 11px 11px 59px; box-shadow: 10px 11px 0 var(--ink); }
  .scribble { left: 18px; font-size: 15px; }
  .orbit-note { font-size: 10px; }
  .manifesto { padding: 85px 18px; }
  .meme-card { padding: 11px; box-shadow: 8px 8px 0 var(--ink); }
  .meme-copy h3 { font-size: 36px; }
  .claim-steps li { grid-template-columns: 64px 1fr; gap: 12px; padding-inline: 4px; }
  .step-no { font-size: 30px; }
  .chat-area { min-height: 525px; }
  footer { padding-inline: 18px; }
  .footer-brand b { display: none; }
  #bot-dialog { padding: 28px 20px 24px; }
  #bot-dialog h2 { font-size: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticker div { animation: none; }
  * { transition: none !important; }
}