:root {
  color-scheme: light;
  --ink: #343a40;
  --muted: #747b80;
  --canvas: #e9e9e6;
  --paper: #fafaf7;
  --line: #d0d3cf;
  --mint: #50ffa7;
  --dark: #17191b;
  --content: 1180px;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--canvas);
}

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

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

button,
a,
.button {
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(calc(100% - 64px), var(--content));
  height: 92px;
  color: #fff;
  transform: translateX(-50%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
}

.brand img {
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.brand span {
  display: grid;
  gap: 1px;
}

.brand strong {
  font-size: 16px;
  letter-spacing: 0;
}

.brand small {
  font-size: 11px;
  opacity: 0.72;
}

.site-header nav {
  display: flex;
  gap: 36px;
  font-size: 14px;
}

.site-header nav a,
.text-link,
.footer-links a {
  text-underline-offset: 5px;
}

.site-header nav a:hover,
.text-link:hover,
.footer-links a:hover {
  text-decoration: underline;
}

.header-status {
  justify-self: end;
  padding: 10px 15px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 6px;
}

.hero {
  position: relative;
  display: flex;
  min-height: 720px;
  height: 88svh;
  max-height: 940px;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: #30342d;
}

.hero-photo,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-photo {
  object-fit: cover;
  object-position: center 58%;
}

.hero-shade {
  background: rgba(11, 15, 12, 0.48);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 64px), var(--content));
  margin: 0 auto;
  padding-bottom: 104px;
}

.eyebrow,
.section-index {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0;
}

.hero .eyebrow,
.final-cta .eyebrow {
  color: var(--mint);
}

.hero h1 {
  max-width: 800px;
  margin: 0;
  font-size: 64px;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 580px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-width: 190px;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
}

.button-disabled {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.34);
  cursor: not-allowed;
}

.text-link {
  font-size: 14px;
  font-weight: 600;
}

.hero-note {
  position: absolute;
  z-index: 1;
  right: 32px;
  bottom: 26px;
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.section {
  width: min(calc(100% - 64px), var(--content));
  margin: 0 auto;
  padding: 128px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 220px 1fr 0.8fr;
  gap: 52px;
  align-items: start;
}

.section-heading.compact {
  grid-template-columns: 220px 1fr 0.8fr;
}

.section-heading h2,
.scan-copy h2,
.final-cta h2 {
  margin: 0;
  font-size: 42px;
  line-height: 1.3;
  letter-spacing: 0;
}

.section-heading > p:last-child,
.scan-copy > p,
.final-cta > p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 88px;
  border-top: 1px solid var(--line);
}

.feature-grid article {
  min-height: 270px;
  padding: 34px 38px 20px 0;
  border-right: 1px solid var(--line);
}

.feature-grid article + article {
  padding-left: 38px;
}

.feature-grid article:last-child {
  border-right: 0;
}

.feature-grid article > span {
  color: #43a979;
  font-size: 13px;
  font-weight: 700;
}

.feature-grid h3,
.steps h3 {
  margin: 48px 0 14px;
  font-size: 20px;
}

.feature-grid p,
.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.scan-story {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  min-height: 760px;
  overflow: hidden;
  color: #f6f7f3;
  background: var(--dark);
}

.scan-copy {
  align-self: center;
  max-width: 590px;
  padding: 92px max(72px, calc((100vw - var(--content)) / 2));
}

.section-index.light {
  color: var(--mint);
}

.scan-copy h2 {
  font-size: 52px;
}

.scan-copy > p {
  max-width: 520px;
  margin-top: 30px;
  color: rgba(255, 255, 255, 0.66);
}

.plain-list {
  display: grid;
  gap: 14px;
  margin: 40px 0 0;
  padding: 28px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.plain-list li::before {
  content: "—";
  margin-right: 12px;
  color: var(--mint);
}

.scan-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 760px;
  margin: 0;
  padding: 64px;
  background: url("template-dark.png") center / cover;
}

.scan-visual::before {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(0, 0, 0, 0.26);
}

.scan-visual img {
  position: relative;
  width: min(100%, 520px);
  transform: rotate(-3deg);
  filter: drop-shadow(0 26px 32px rgba(0, 0, 0, 0.46));
}

.scan-visual figcaption {
  position: absolute;
  right: 28px;
  bottom: 26px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

.preview {
  width: min(calc(100% - 64px), 1380px);
}

.preview .section-heading {
  width: min(100%, var(--content));
  margin: 0 auto;
}

.screenshot-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 72px;
}

.screenshot-rail figure {
  margin: 0;
}

.screenshot-rail img {
  width: 100%;
  border: 1px solid #cfd2ce;
  border-radius: 8px;
  box-shadow: 0 22px 48px rgba(31, 35, 32, 0.12);
}

.screenshot-rail figcaption {
  padding-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.guide {
  padding-top: 72px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px;
  margin: 76px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 18px;
  align-items: start;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.steps li > span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid #aeb3af;
  border-radius: 50%;
}

.steps h3 {
  margin-top: 4px;
}

.guide-note {
  max-width: 780px;
  margin: 72px 0 0 auto;
  padding-left: 24px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
  border-left: 2px solid #47b57f;
}

.final-cta {
  display: grid;
  min-height: 560px;
  place-items: center;
  align-content: center;
  padding: 96px 32px;
  text-align: center;
  color: #f8f8f5;
  background: var(--dark);
}

.final-cta img {
  margin-bottom: 28px;
  border-radius: 8px;
}

.final-cta .eyebrow {
  margin-bottom: 18px;
}

.final-cta > p {
  margin: 22px 0 30px;
  color: rgba(255, 255, 255, 0.62);
}

.light-button {
  color: var(--dark);
  background: var(--mint);
  border-color: var(--mint);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  width: min(calc(100% - 64px), var(--content));
  margin: 0 auto;
  padding: 44px 0 34px;
  color: var(--muted);
  font-size: 12px;
}

.site-footer > div:first-child {
  display: flex;
  gap: 12px;
  align-items: baseline;
}

.site-footer strong {
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 22px;
}

.site-footer > p {
  grid-column: 1 / -1;
  margin: 10px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.legal-page {
  background: #f4f4f1;
}

.legal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 64px), 920px);
  height: 96px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.dark-brand {
  color: var(--ink);
}

.legal-content {
  width: min(calc(100% - 64px), 780px);
  margin: 0 auto;
  padding: 104px 0 120px;
}

.legal-content h1 {
  margin: 0;
  font-size: 52px;
  letter-spacing: 0;
}

.legal-date {
  margin: 18px 0 80px;
  color: var(--muted);
  font-size: 13px;
}

.legal-content section {
  padding: 38px 0;
  border-top: 1px solid var(--line);
}

.legal-content h2 {
  margin: 0 0 20px;
  font-size: 22px;
}

.legal-content section p {
  margin: 10px 0 0;
  color: #5f666b;
  font-size: 15px;
  line-height: 1.95;
}

.legal-footer {
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .site-header {
    width: calc(100% - 36px);
  }

  .site-header nav {
    display: none;
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .hero {
    min-height: 680px;
    height: 86svh;
  }

  .hero-content,
  .section,
  .preview,
  .site-footer,
  .legal-header,
  .legal-content {
    width: calc(100% - 40px);
  }

  .hero-content {
    padding-bottom: 72px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .section-heading,
  .section-heading.compact {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section-heading h2,
  .final-cta h2 {
    font-size: 34px;
  }

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

  .feature-grid article,
  .feature-grid article + article {
    min-height: 0;
    padding: 28px 0 44px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature-grid h3 {
    margin-top: 28px;
  }

  .scan-story {
    grid-template-columns: 1fr;
  }

  .scan-copy {
    max-width: none;
    padding: 96px 40px;
  }

  .scan-visual {
    min-height: 620px;
  }

  .screenshot-rail {
    display: flex;
    overflow-x: auto;
    gap: 18px;
    margin-right: -20px;
    padding: 0 20px 22px 0;
    scroll-snap-type: x mandatory;
  }

  .screenshot-rail figure {
    min-width: min(78vw, 420px);
    scroll-snap-align: start;
  }

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

@media (max-width: 560px) {
  .site-header {
    height: 78px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    font-size: 14px;
  }

  .header-status {
    padding: 8px 10px;
    font-size: 11px;
  }

  .hero {
    min-height: 650px;
    max-height: 780px;
  }

  .hero-photo {
    object-position: 58% 58%;
  }

  .hero h1 {
    font-size: 40px;
    line-height: 1.22;
  }

  .hero-copy {
    font-size: 15px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .hero-note {
    display: none;
  }

  .section {
    padding: 92px 0;
  }

  .section-heading h2,
  .final-cta h2 {
    font-size: 30px;
  }

  .scan-copy {
    padding: 84px 24px;
  }

  .scan-copy h2 {
    font-size: 40px;
  }

  .scan-visual {
    min-height: 520px;
    padding: 40px;
  }

  .steps {
    gap: 22px;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer > div:first-child {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .legal-content {
    padding-top: 72px;
  }

  .legal-content h1 {
    font-size: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}