:root {
  --green-deep: #063d2b;
  --green-ink: #09271f;
  --green-soft: #14724d;
  --gold: #d8a84d;
  --gold-deep: #986524;
  --gold-light: #ffe8a8;
  --paper: #f6eddd;
  --paper-card: #fffaf0;
  --text-main: #172820;
  --text-muted: #746957;
  --line: rgba(117, 88, 41, 0.16);
  --shadow: 0 24px 72px rgba(47, 36, 18, 0.16);
  font-family:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-main);
  background:
    radial-gradient(ellipse at 76% 4%, rgba(255, 236, 178, 0.52) 0, transparent 30%),
    radial-gradient(ellipse at 18% 0, rgba(38, 129, 86, 0.16) 0, transparent 34%),
    linear-gradient(180deg, #fbf5e9 0%, var(--paper) 46%, #efe1cd 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  backdrop-filter: blur(16px);
}

.brand,
.site-nav,
.ai-strip,
.hero-scan,
.section-heading--split,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
}

.brand__logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}

.brand__name {
  color: var(--green-deep);
  font-size: 21px;
  font-weight: 900;
}

.site-nav {
  gap: 24px;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 800;
}

.site-nav a {
  padding: 10px 0;
}

.hero,
.section,
.site-footer {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(380px, 0.88fr) minmax(520px, 1.12fr);
  gap: 34px;
  min-height: calc(100dvh - 70px);
  align-items: center;
  padding: 30px 0 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold-deep);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.02em;
}

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

h1 {
  max-width: 620px;
  margin-bottom: 18px;
  color: var(--green-deep);
  font-size: clamp(42px, 4.7vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero__lead {
  max-width: 580px;
  margin-bottom: 0;
  color: #43534a;
  font-size: 19px;
  font-weight: 750;
  line-height: 1.72;
}

.ai-strip {
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.ai-strip span {
  padding: 9px 13px;
  border: 1px solid rgba(216, 168, 77, 0.34);
  border-radius: 999px;
  color: #675126;
  font-size: 13px;
  font-weight: 900;
  background: rgba(255, 250, 240, 0.76);
}

.hero-scan {
  gap: 16px;
  width: min(430px, 100%);
  margin-top: 28px;
  padding: 14px;
  border: 1px solid rgba(216, 168, 77, 0.24);
  border-radius: 24px;
  background: rgba(255, 252, 244, 0.88);
  box-shadow: 0 16px 42px rgba(74, 58, 29, 0.1);
}

.hero-scan img {
  flex: 0 0 auto;
  width: 132px;
  height: 132px;
  border-radius: 14px;
}

.hero-scan strong,
.hero-scan span,
.hero-scan small {
  display: block;
}

.hero-scan strong {
  color: var(--green-deep);
  font-size: 20px;
  font-weight: 900;
}

.hero-scan span {
  margin-top: 5px;
  color: var(--gold-deep);
  font-size: 14px;
  font-weight: 900;
}

.hero-scan small {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.58;
}

.compliance-notice {
  max-width: 560px;
  margin: 16px 0 0;
  padding: 12px 14px;
  border: 1px solid rgba(152, 101, 36, 0.28);
  border-left: 5px solid var(--gold-deep);
  border-radius: 14px;
  color: #5f4219;
  font-size: 14px;
  font-weight: 900;
  line-height: 1.65;
  background: rgba(255, 245, 218, 0.9);
  box-shadow: 0 10px 24px rgba(117, 88, 41, 0.08);
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  padding-top: 72px;
  min-height: 560px;
  overflow: hidden;
}

.phone-frame,
.carousel-face,
.poster-frame {
  position: relative;
  overflow: hidden;
  border: 9px solid #13231d;
  border-radius: 38px;
  background: #13231d;
  box-shadow: var(--shadow);
}

.phone-frame {
  width: 286px;
  aspect-ratio: 1206 / 2622;
}

.phone-frame img,
.carousel-face img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.hero-carousel {
  position: relative;
  width: min(480px, 100%);
  height: 488px;
  perspective: 1200px;
  --face-width: 196px;
  --carousel-z: 186px;
}

.carousel-track {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  animation: rotateScreens 32s infinite linear;
}

.hero-carousel:hover .carousel-track {
  animation-play-state: paused;
}

.carousel-face {
  position: absolute;
  top: 4px;
  left: calc(50% - var(--face-width) / 2);
  width: var(--face-width);
  aspect-ratio: 1206 / 2622;
  margin: 0;
  backface-visibility: hidden;
}

.carousel-face:nth-child(1) {
  transform: rotateY(0deg) translateZ(var(--carousel-z));
}

.carousel-face:nth-child(2) {
  transform: rotateY(72deg) translateZ(var(--carousel-z));
}

.carousel-face:nth-child(3) {
  transform: rotateY(144deg) translateZ(var(--carousel-z));
}

.carousel-face:nth-child(4) {
  transform: rotateY(216deg) translateZ(var(--carousel-z));
}

.carousel-face:nth-child(5) {
  aspect-ratio: 1080 / 1920;
  transform: rotateY(288deg) translateZ(var(--carousel-z));
}

.carousel-face::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(4, 18, 14, 0.22), transparent 28%, transparent 72%, rgba(4, 18, 14, 0.22));
}

.carousel-face figcaption {
  position: absolute;
  left: 50%;
  bottom: 16px;
  z-index: 2;
  transform: translateX(-50%);
  padding: 7px 12px;
  border: 1px solid rgba(216, 168, 77, 0.34);
  border-radius: 999px;
  color: #fff8da;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  background: rgba(6, 61, 43, 0.86);
  box-shadow: 0 10px 20px rgba(4, 18, 14, 0.2);
}

@keyframes rotateScreens {
  from {
    transform: rotateY(0deg);
  }

  to {
    transform: rotateY(-360deg);
  }
}

.section {
  padding: 70px 0;
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading h2 {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--green-deep);
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.18;
}

.section-heading--split {
  justify-content: space-between;
  gap: 32px;
}

.section-heading--split p:last-child {
  max-width: 380px;
  margin-bottom: 0;
  color: var(--text-muted);
  font-weight: 750;
  line-height: 1.7;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.ai-grid article,
.screen-card,
.qa-list details {
  border: 1px solid var(--line);
  background: rgba(255, 252, 244, 0.78);
  box-shadow: 0 12px 32px rgba(74, 58, 29, 0.08);
}

.ai-grid article {
  min-height: 210px;
  padding: 24px;
  border-radius: 22px;
}

.ai-grid span,
.screen-card span {
  color: var(--gold-deep);
  font-size: 13px;
  font-weight: 900;
}

.ai-grid h3,
.screen-card h3 {
  color: var(--green-deep);
  font-size: 23px;
  line-height: 1.22;
}

.ai-grid h3 {
  margin: 46px 0 10px;
}

.ai-grid p,
.screen-card p,
.qa-list p {
  color: var(--text-muted);
  font-weight: 750;
  line-height: 1.7;
}

.screen-showcase {
  display: grid;
  grid-template-columns: 1.25fr repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.screen-card {
  overflow: hidden;
  padding: 18px;
  border-radius: 24px;
}

.screen-card--wide {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  grid-column: span 2;
}

.screen-card--wide .phone-frame {
  width: 260px;
}

.screen-card:not(.screen-card--wide) .phone-frame,
.screen-card .poster-frame {
  width: min(100%, 238px);
  margin: 0 auto 18px;
}

.poster-frame {
  aspect-ratio: 1080 / 1920;
}

.poster-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.screen-card h3 {
  margin: 8px 0 0;
}

.screen-card--wide h3 {
  margin-bottom: 12px;
  font-size: 28px;
}

.qa-list {
  display: grid;
  gap: 12px;
}

.qa-list details {
  padding: 18px 20px;
  border-radius: 18px;
}

.qa-list summary {
  cursor: pointer;
  color: var(--green-deep);
  font-size: 18px;
  font-weight: 900;
}

.qa-list p {
  margin: 12px 0 0;
}

.site-footer {
  justify-content: space-between;
  gap: 18px;
  padding: 34px 0 42px;
  color: var(--text-muted);
  font-size: 14px;
}

.site-footer strong {
  display: block;
  color: var(--green-deep);
  font-size: 18px;
}

.site-footer span {
  display: block;
  margin-top: 6px;
}

.footer-records {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
  font-size: 13px;
  font-weight: 800;
}

.footer-records a {
  color: var(--text-muted);
}

.footer-records a:hover {
  color: var(--green-deep);
}

@media (prefers-reduced-motion: reduce) {
  *,
  html {
    scroll-behavior: auto;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .carousel-track {
    animation: none;
    transform: rotateY(0deg);
  }

  .carousel-face:not(:first-child) {
    display: none;
  }

  .carousel-face:first-child {
    transform: translateZ(0);
  }
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) 440px;
  }

  .screen-showcase {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .site-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: auto;
    padding-top: 28px;
  }

  .hero__visual {
    order: 2;
  }

  .ai-grid,
  .screen-showcase {
    grid-template-columns: 1fr;
  }

  .screen-card--wide {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .screen-card--wide .phone-frame {
    width: min(100%, 300px);
    margin: 0 auto;
  }

  .section-heading--split {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .site-header,
  .hero,
  .section,
  .site-footer {
    width: min(100% - 24px, 1240px);
  }

  .brand__name {
    font-size: 19px;
  }

  h1 {
    font-size: 38px;
  }

  .hero__lead {
    font-size: 17px;
  }

  .hero-scan {
    align-items: flex-start;
    width: 100%;
  }

  .hero-scan img {
    width: 118px;
    height: 118px;
  }

  .hero__visual {
    padding-top: 58px;
    min-height: 500px;
    overflow: hidden;
  }

  .hero-carousel {
    height: 442px;
    --face-width: 178px;
    --carousel-z: 140px;
  }

  .section {
    padding: 54px 0;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-records {
    justify-content: flex-start;
  }
}