:root {
  color-scheme: light;
  --md-sys-color-primary: #2f6f5b;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-primary-container: #d8eadf;
  --md-sys-color-on-primary-container: #0b2a1f;
  --md-sys-color-secondary: #59645d;
  --md-sys-color-secondary-container: #e0e8df;
  --md-sys-color-tertiary: #725d32;
  --md-sys-color-tertiary-container: #f4e6bf;
  --md-sys-color-surface: #fbfcf8;
  --md-sys-color-surface-dim: #ecefe8;
  --md-sys-color-surface-container-lowest: #ffffff;
  --md-sys-color-surface-container-low: #f5f7f2;
  --md-sys-color-surface-container: #eef2eb;
  --md-sys-color-surface-container-high: #e7ede4;
  --md-sys-color-outline: #d2dbd2;
  --md-sys-color-outline-variant: #e4eae1;
  --md-sys-color-on-surface: #1d211f;
  --md-sys-color-on-surface-variant: #5c665f;
  --md-sys-color-inverse-surface: #24302b;
  --container: 1180px;
  --page-pad: clamp(20px, 5vw, 72px);
  --section-y: clamp(84px, 10vw, 136px);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-xl: 44px;
  --display: 112px;
  --headline: 58px;
  --title: 38px;
  --body-lg: 19px;
  --body: 16px;
  --body-sm: 14px;
  --shadow-media: 0 28px 80px rgba(29, 33, 31, 0.18);
  --shadow-soft: 0 16px 42px rgba(47, 111, 91, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-pad);
  background: rgba(251, 252, 248, 0.86);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  backdrop-filter: blur(18px);
}

.brand {
  color: var(--md-sys-color-on-surface);
  font-size: 23px;
  font-weight: 850;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 15px;
  font-weight: 720;
}

.nav a:hover,
.text-link:hover {
  color: var(--md-sys-color-primary);
}

.hero {
  min-height: calc(100svh - 76px);
  position: relative;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--md-sys-color-inverse-surface);
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(12, 18, 15, 0.86) 0%, rgba(12, 18, 15, 0.66) 36%, rgba(12, 18, 15, 0.12) 66%),
    linear-gradient(0deg, rgba(12, 18, 15, 0.66) 0%, rgba(12, 18, 15, 0) 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 40px));
  margin: 0 0 clamp(42px, 8vw, 96px) var(--page-pad);
  color: #fff;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--md-sys-color-tertiary);
  font-size: var(--body-sm);
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f4e6bf;
}

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

h1 {
  margin-bottom: 12px;
  font-size: var(--display);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: var(--headline);
  line-height: 1.04;
  letter-spacing: 0;
}

.split-line {
  display: block;
}

h3 {
  margin-bottom: 8px;
  font-size: 22px;
  line-height: 1.28;
}

.hero-statement {
  margin-bottom: 18px;
  font-size: 38px;
  line-height: 1.15;
  font-weight: 760;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--body-lg);
  line-height: 1.72;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 760;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  border: 1px solid var(--md-sys-color-primary);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: 0 12px 28px rgba(47, 111, 91, 0.22);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  backdrop-filter: blur(10px);
}

.download-copy .button.secondary,
.doc .button.secondary {
  border-color: var(--md-sys-color-outline);
  background: var(--md-sys-color-surface-container-lowest);
  color: var(--md-sys-color-primary);
}

.hero-status {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
  margin: 34px 0 0;
}

.hero-status div {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-status span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 720;
}

.hero-status strong {
  display: block;
  margin-top: 6px;
  color: #fff;
  font-size: 18px;
  font-weight: 760;
}

.status-strip {
  width: min(var(--container), calc(100% - 40px));
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  margin: 24px auto 0;
  padding: 18px 22px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 999px;
  background: var(--md-sys-color-surface-container-lowest);
  box-shadow: var(--shadow-soft);
}

.status-strip p {
  margin: 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 15px;
  line-height: 1.6;
}

.status-strip a,
.text-link {
  color: var(--md-sys-color-primary);
  font-weight: 780;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-size: 14px;
  font-weight: 800;
}

.product-section,
.feature-section,
.process-section,
.download-section,
.trust-section {
  width: min(var(--container), 100%);
  margin: 0 auto;
  padding: var(--section-y) var(--page-pad);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: start;
  margin-bottom: clamp(42px, 6vw, 76px);
}

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

.section-heading .section-label {
  position: sticky;
  top: 110px;
}

.supporting-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(330px, 0.82fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: stretch;
}

.primary-pane {
  min-width: 0;
}

.product-photo {
  height: 100%;
  min-height: 620px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--md-sys-color-surface-container);
  box-shadow: var(--shadow-media);
}

.product-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.support-pane {
  display: grid;
  align-content: center;
  border-block: 1px solid var(--md-sys-color-outline);
}

.support-pane article {
  padding: 34px 0;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.support-pane article:last-child {
  border-bottom: 0;
}

.support-pane span {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--md-sys-color-tertiary);
  font-size: 14px;
  font-weight: 850;
}

.support-pane p,
.feature-line p,
.process-list p,
.download-copy p,
.trust-section p,
.doc p,
.doc li {
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--body-lg);
  line-height: 1.72;
}

.feature-section {
  padding-top: 0;
}

.feature-list {
  border-top: 1px solid var(--md-sys-color-outline);
}

.feature-line {
  display: grid;
  grid-template-columns: minmax(160px, 0.36fr) minmax(0, 1fr);
  gap: clamp(20px, 5vw, 72px);
  align-items: baseline;
  padding: 28px 0;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.feature-line span {
  color: var(--md-sys-color-on-surface);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
}

.feature-line p {
  max-width: 640px;
  margin-bottom: 0;
}

.process-section {
  width: 100%;
  max-width: none;
  border-block: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
}

.process-section > * {
  width: min(var(--container), 100%);
  margin-left: auto;
  margin-right: auto;
}

.process-list {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  position: relative;
  min-height: 230px;
  padding: 34px 34px 34px 0;
  border-top: 1px solid var(--md-sys-color-outline);
}

.process-list li + li {
  padding-left: 34px;
}

.process-list li + li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 34px;
  bottom: 34px;
  width: 1px;
  background: var(--md-sys-color-outline-variant);
}

.process-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 34px;
  border-radius: 50%;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-weight: 850;
}

.process-list strong {
  display: block;
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.25;
}

.process-list p {
  margin-bottom: 0;
}

.download-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
}

.download-copy h2 {
  margin-bottom: 22px;
}

.download-copy p {
  max-width: 650px;
  margin-bottom: 30px;
}

.download-panel {
  display: grid;
  gap: 0;
  padding: 0;
  border-block: 1px solid var(--md-sys-color-outline);
  background: transparent;
  box-shadow: none;
}

.download-panel div {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.download-panel span {
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--body);
}

.download-panel strong {
  color: var(--md-sys-color-on-surface);
  font-size: 17px;
  text-align: right;
}

.download-panel .text-link {
  justify-self: start;
  padding: 20px 0 12px;
}

.trust-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(34px, 6vw, 84px);
  padding-top: 0;
  border-top: 1px solid var(--md-sys-color-outline);
  border-bottom: 1px solid var(--md-sys-color-outline);
}

.trust-section article {
  padding: clamp(34px, 5vw, 58px) 0;
  background: transparent;
}

.trust-section article:first-child {
  border-radius: 0;
}

.trust-section article:last-child {
  position: relative;
  border-radius: 0;
  background: transparent;
}

.trust-section article:last-child::before {
  content: "";
  position: absolute;
  left: calc(clamp(17px, 3vw, 42px) * -1);
  top: clamp(34px, 5vw, 58px);
  bottom: clamp(34px, 5vw, 58px);
  width: 1px;
  background: var(--md-sys-color-outline-variant);
}

.trust-section h2 {
  margin-bottom: 18px;
  font-size: var(--title);
  line-height: 1.12;
}

.footer {
  width: min(var(--container), 100%);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 0 auto;
  padding: 34px var(--page-pad) 42px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--body-sm);
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page {
  min-height: 100svh;
  padding: 76px var(--page-pad) var(--section-y);
  background:
    linear-gradient(180deg, var(--md-sys-color-surface-container-low) 0, var(--md-sys-color-surface) 360px);
}

.page .site-header {
  margin: -76px calc(var(--page-pad) * -1) clamp(54px, 8vw, 88px);
}

.doc {
  max-width: 920px;
}

.doc h1 {
  margin-bottom: 22px;
  font-size: 64px;
  line-height: 1.02;
  letter-spacing: 0;
}

.doc h2 {
  margin: 48px 0 14px;
  font-size: 28px;
  line-height: 1.22;
}

.doc a {
  color: var(--md-sys-color-primary);
  font-weight: 760;
}

.doc ul {
  padding-left: 1.2em;
}

code {
  padding: 3px 7px;
  border-radius: 8px;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.status-dot {
  display: inline-block;
  width: 13px;
  height: 13px;
  margin-right: 12px;
  border-radius: 50%;
  background: var(--md-sys-color-primary);
  box-shadow: 0 0 0 6px var(--md-sys-color-primary-container);
}

@media (max-width: 960px) {
  :root {
    --display: 88px;
    --headline: 46px;
    --title: 34px;
  }

  .hero {
    min-height: auto;
  }

  .hero::after {
    background:
      linear-gradient(90deg, rgba(12, 18, 15, 0.88) 0%, rgba(12, 18, 15, 0.62) 58%, rgba(12, 18, 15, 0.22) 100%),
      linear-gradient(0deg, rgba(12, 18, 15, 0.72) 0%, rgba(12, 18, 15, 0) 48%);
  }

  .hero-content {
    margin-top: 120px;
  }

  .status-strip,
  .section-heading,
  .supporting-layout,
  .download-section,
  .trust-section {
    grid-template-columns: 1fr;
  }

  .section-heading .section-label {
    position: static;
  }

  .product-photo {
    min-height: 480px;
  }

  .support-pane {
    align-content: start;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .process-list li,
  .process-list li + li {
    min-height: auto;
    padding: 26px 0;
  }

  .process-list li + li::before {
    display: none;
  }

  .trust-section article,
  .trust-section article:first-child,
  .trust-section article:last-child {
    border-radius: 0;
  }

  .trust-section article:last-child {
    border-top: 1px solid var(--md-sys-color-outline-variant);
  }

  .trust-section article:last-child::before {
    display: none;
  }
}

@media (max-width: 680px) {
  :root {
    --display: 64px;
    --headline: 33px;
    --title: 27px;
    --body-lg: 17px;
    --section-y: 72px;
  }

  html {
    scroll-padding-top: 132px;
  }

  .site-header {
    height: auto;
    min-height: 72px;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-block: 14px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
    font-size: 14px;
  }

  .hero-media {
    object-position: 62% center;
  }

  .hero-content {
    width: calc(100% - 40px);
    margin: 110px 20px 38px;
  }

  .hero-statement {
    font-size: 25px;
  }

  .hero-status,
  .feature-line,
  .download-panel div {
    grid-template-columns: 1fr;
  }

  .hero-status {
    gap: 10px;
  }

  .actions,
  .button {
    width: 100%;
  }

  .status-strip {
    border-radius: var(--radius-md);
  }

  .product-section,
  .feature-section,
  .process-section,
  .download-section,
  .trust-section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .product-photo {
    min-height: 360px;
    border-radius: var(--radius-lg);
  }

  .support-pane article {
    padding: 26px 0;
  }

  .feature-line {
    gap: 10px;
    padding: 22px 0;
  }

  .download-panel {
    padding: 8px 20px;
  }

  .download-panel strong {
    text-align: left;
  }

  .footer {
    flex-direction: column;
  }
}