:root {
  --white: #ffffff;
  --black: #000000;
  --red: #e10600;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--white);
  color: var(--black);
  font-family: Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  line-height: 1.3;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.page {
  border: 8px solid var(--black);
  min-height: 100vh;
}

.bar {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  border-bottom: 8px solid var(--black);
  background: var(--black);
  color: var(--white);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.bar span, .bar a {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  font-size: 18px;
}
.bar .star { color: var(--red); font-size: 36px; line-height: 1; padding-right: 0; }
.bar .url { background: var(--red); color: var(--white); }
.bar .url:hover { background: var(--white); color: var(--black); }

.ticker {
  overflow: hidden;
  border-bottom: 8px solid var(--black);
  background: var(--red);
  color: var(--white);
  font-weight: 900;
  text-transform: uppercase;
  white-space: nowrap;
  font-size: 20px;
}
.ticker p {
  margin: 0;
  padding: 10px 0;
  animation: slide 18s linear infinite;
}
@keyframes slide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 88vh;
}
.hero-text {
  padding: 28px 28px 32px;
  border-right: 8px solid var(--black);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}
.kicker {
  margin: 0;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.display { margin: 8px 0 0; }
.display .please,
.display .noone {
  margin: 0;
  font-size: clamp(72px, 15vw, 176px);
  font-weight: 900;
  line-height: 0.76;
  text-transform: uppercase;
  letter-spacing: -0.07em;
}
.display .please { color: var(--red); }
.display .noone {
  color: var(--black);
  margin-left: 22px;
  margin-top: -0.16em;
}
.zh {
  margin: 8px 0 0;
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 900;
}
.zh b { color: var(--red); }
.note {
  margin: 16px 0 0;
  max-width: 42ch;
  font-weight: 700;
  font-size: 20px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 14px 22px;
  border: 4px solid var(--black);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.btn.red { background: var(--red); color: var(--white); }
.btn.black { background: var(--black); color: var(--white); }
.btn.red:hover, .btn.black:hover {
  background: var(--white);
  color: var(--black);
}

.hero-pic {
  position: relative;
  overflow: hidden;
  background: var(--black);
}
.hero-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.4);
}
.slats {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0 18px,
    var(--white) 18px 26px
  );
  pointer-events: none;
}
.stamp {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 1;
  background: var(--red);
  color: var(--white);
  font-weight: 900;
  text-transform: uppercase;
  padding: 12px 14px;
  border: 6px solid var(--black);
  font-size: 20px;
}

.who {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  border-top: 8px solid var(--black);
}
.who-title {
  background: var(--red);
  color: var(--white);
  padding: 32px 24px;
  border-right: 8px solid var(--black);
}
.who-title h2 {
  margin: 10px 0 0;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.88;
  text-transform: uppercase;
}
.who-copy { padding: 32px 28px; }
.who-copy p { margin: 0 0 16px; font-weight: 700; max-width: 54ch; }
.who-copy p:last-child { margin: 0; }

.bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 8px solid var(--black);
}
.bar-item {
  padding: 22px 16px;
  font-weight: 900;
  text-transform: uppercase;
  font-size: 15px;
  letter-spacing: 0.06em;
}
.bar-item + .bar-item { border-left: 8px solid var(--black); }
.bar-item b { display: block; color: var(--red); font-size: 28px; margin-bottom: 8px; }

.blocks {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-top: 8px solid var(--black);
}
.block {
  padding: 28px 22px 36px;
  min-height: 280px;
}
.block + .block { border-left: 8px solid var(--black); }
.block h2 {
  margin: 12px 0 14px;
  font-size: 34px;
  text-transform: uppercase;
}
.idx { color: var(--red); font-weight: 900; letter-spacing: 0.12em; }
.block p { margin: 0 0 12px; font-weight: 700; }
.block p:last-child { margin: 0; }

.plugin { border-top: 8px solid var(--black); }
.plugin-head {
  padding: 28px 24px 16px;
  border-bottom: 8px solid var(--black);
}
.plugin-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(40px, 6vw, 72px);
  text-transform: uppercase;
  line-height: 0.88;
}
.plugin-head .note { max-width: 62ch; }
.plugin-steps {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}
.plugin-step { padding: 28px 22px 36px; }
.plugin-step + .plugin-step { border-left: 8px solid var(--black); }
.plugin-step h3 {
  margin: 12px 0 14px;
  font-size: 28px;
  text-transform: uppercase;
}
.plugin-step p { margin: 0; font-weight: 700; }
.plugin-note {
  margin: 0;
  padding: 20px 24px;
  border-top: 8px solid var(--black);
  background: var(--black);
  color: var(--white);
  font-weight: 800;
}

.anti {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 8px solid var(--black);
}
.anti h2 {
  margin: 0;
  padding: 32px 24px;
  background: var(--black);
  color: var(--red);
  font-size: clamp(36px, 5vw, 64px);
  line-height: 0.88;
  text-transform: uppercase;
  border-right: 8px solid var(--black);
}
.anti ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.anti li {
  padding: 18px 22px;
  border-bottom: 4px solid var(--black);
  font-weight: 800;
}
.anti li:last-child { border-bottom: 0; }
.anti li span { color: var(--red); margin-right: 10px; }

.truth {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  border-top: 8px solid var(--black);
  background: var(--black);
  color: var(--white);
}
.truth h2 {
  margin: 0;
  padding: 32px 24px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 0.88;
  text-transform: uppercase;
  color: var(--red);
  border-right: 8px solid var(--white);
}
.list { margin: 0; padding: 0; list-style: none; }
.list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 4px solid var(--white);
  font-weight: 700;
}
.list li:last-child { border-bottom: 0; }
.list strong { color: var(--red); text-transform: uppercase; font-size: 18px; }

.get {
  border-top: 8px solid var(--black);
}
.get-head {
  padding: 28px 24px 8px;
  border-bottom: 8px solid var(--black);
}
.get-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(40px, 6vw, 72px);
  text-transform: uppercase;
  line-height: 0.88;
}
.qrs {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.qr-card {
  padding: 28px 24px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
}
.qr-card + .qr-card { border-left: 8px solid var(--black); }
.qr-card h3 {
  margin: 0;
  font-size: 28px;
  text-transform: uppercase;
}
.qr-card p { margin: 0; font-weight: 700; max-width: 36ch; }
.qr-card img {
  width: min(100%, 380px);
  border: 8px solid var(--black);
  padding: 12px;
  background: var(--white);
}
.qr-card .addr {
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.04em;
  word-break: break-all;
  text-transform: uppercase;
}
.qr-card.alt { background: var(--red); color: var(--white); }
.qr-card.alt img { border-color: var(--black); }
.qr-card.alt .btn { border-color: var(--black); background: var(--black); color: var(--white); }
.qr-card.alt .btn:hover { background: var(--white); color: var(--black); }

.foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-top: 8px solid var(--black);
  background: var(--red);
  color: var(--white);
  font-weight: 900;
  text-transform: uppercase;
}

.bar .short { display: none; }
@media (max-width: 900px) {
  .bar .full { display: none; }
  .bar .short { display: inline; }
  .page { border-width: 5px; }
  .hero, .who, .bars, .blocks, .plugin-steps, .anti, .truth, .qrs { grid-template-columns: 1fr; }
  .hero-text, .who-title, .truth h2, .anti h2, .qr-card + .qr-card {
    border-right: 0;
    border-left: 0;
  }
  .hero-text, .who-title, .anti h2, .qr-card + .qr-card { border-bottom: 5px solid var(--black); }
  .truth h2 { border-bottom: 5px solid var(--white); }
  .block + .block, .bar-item + .bar-item, .plugin-step + .plugin-step { border-left: 0; border-top: 5px solid var(--black); }
  .hero-pic { min-height: 360px; }
  .bar .hide { display: none; }
  .foot { flex-direction: column; }
  .qr-card img { width: min(100%, 320px); }
}

.subpage { max-width: 880px; margin: 0 auto; padding: 32px 20px 48px; }
.subpage h1 {
  margin: 12px 0;
  font-size: clamp(48px, 10vw, 96px);
  line-height: 0.85;
  text-transform: uppercase;
}
.subpage .btn { margin: 12px 12px 0 0; }
.demo-scene {
  border: 8px solid var(--black);
  margin: 20px 0;
  padding: 24px;
}
.demo-scene h2 { margin: 0 0 10px; text-transform: uppercase; color: var(--red); }