:root {
  color-scheme: light;
  --bg: #f5f7f1;
  --paper: #fffdf8;
  --paper-strong: #ffffff;
  --ink: #202522;
  --muted: #66706b;
  --line: #d9dfd4;
  --line-strong: #bfc8bb;
  --blue: #3867ff;
  --blue-ink: #163a9f;
  --green: #2fc56f;
  --green-ink: #12573b;
  --amber: #ffca2f;
  --orange: #ff6a18;
  --soft-blue: #eef3ff;
  --soft-green: #edf8ef;
  --soft-amber: #fff7d8;
  --shadow: 0 24px 70px rgba(36, 45, 40, 0.12);
  --shadow-tight: 0 12px 34px rgba(36, 45, 40, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.92) 0%, rgba(245, 247, 241, 0.96) 44%, rgba(239, 246, 240, 0.98) 100%),
    repeating-linear-gradient(112deg, rgba(32, 37, 34, 0.06) 0 1px, transparent 1px 42px);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.66;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 63%, rgba(56, 103, 255, 0.09) 63% 78%, transparent 78%),
    linear-gradient(180deg, transparent 0 68%, rgba(47, 197, 111, 0.1) 68% 84%, transparent 84%);
}

a {
  color: var(--blue-ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 223, 212, 0.82);
  background: rgba(255, 253, 248, 0.84);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1160px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 850;
}

.brand-mark,
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex: 0 0 auto;
  box-shadow: 0 10px 22px rgba(32, 37, 34, 0.14);
}

.brand-mark {
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--amber), var(--green) 58%, var(--blue));
  color: #111814;
  font-weight: 950;
}

.brand-icon {
  display: block;
  object-fit: cover;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.nav-links a {
  padding: 8px 11px;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 760;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 76px;
}

.hero {
  position: relative;
  padding: 44px 0 28px;
  margin-bottom: 12px;
}

.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 430px);
  gap: 44px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.eyebrow,
.panel-label,
.card-label,
.visual-kicker {
  margin: 0 0 12px;
  color: var(--green-ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.16;
  letter-spacing: 0;
}

h1 {
  max-width: 840px;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: 58px;
  font-weight: 800;
}

h2 {
  margin-top: 32px;
  font-size: 24px;
  font-weight: 900;
}

h3 {
  margin-top: 22px;
  font-size: 18px;
  font-weight: 850;
}

.lead {
  max-width: 780px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.meta {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 7px 10px;
  border: 1px solid rgba(191, 200, 187, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: #3d4742;
  font-size: 12px;
  font-weight: 780;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 15px;
  border: 1px solid rgba(22, 58, 159, 0.2);
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 850;
  box-shadow: 0 12px 26px rgba(56, 103, 255, 0.22);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(56, 103, 255, 0.26);
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  box-shadow: none;
}

.studio-visual,
.product-visual,
.hero-panel,
.card,
.notice,
.toc,
.document,
.product-strip {
  border: 1px solid rgba(191, 200, 187, 0.9);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.9);
  box-shadow: var(--shadow);
}

.studio-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(255, 253, 248, 0.96), rgba(238, 248, 239, 0.92)),
    repeating-linear-gradient(90deg, rgba(32, 37, 34, 0.08) 0 1px, transparent 1px 30px);
}

.studio-visual::after {
  content: "";
  position: absolute;
  right: -22px;
  bottom: 56px;
  width: 180px;
  height: 180px;
  border: 28px solid rgba(56, 103, 255, 0.12);
  border-radius: 8px;
  transform: rotate(14deg);
}

.visual-kicker {
  color: var(--blue-ink);
}

.product-card {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-tight);
}

.product-card h2,
.hero-panel h2,
.card h2,
.notice h2,
.document section:first-child h2,
.section-heading h2 {
  margin-top: 0;
}

.product-card p,
.hero-panel p,
.card p,
.notice p,
.product-strip p {
  margin: 10px 0 0;
  color: var(--muted);
}

.app-icon {
  width: 68px;
  height: 68px;
  border-radius: 8px;
  object-fit: cover;
  flex: 0 0 auto;
  box-shadow: 0 14px 30px rgba(32, 37, 34, 0.16);
}

.screen-peek {
  position: absolute;
  z-index: 1;
  right: 26px;
  bottom: -98px;
  width: 242px;
  height: 526px;
  overflow: hidden;
  border: 10px solid #1c2324;
  border-radius: 34px;
  background: #eef0f5;
  box-shadow: 0 28px 58px rgba(32, 37, 34, 0.26);
  transform: rotate(5deg);
}

.screen-peek img {
  display: block;
  width: 100%;
  height: auto;
}

.product-visual {
  min-height: 620px;
  padding: 22px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(150deg, rgba(255, 253, 248, 0.96), rgba(238, 243, 255, 0.9)),
    repeating-linear-gradient(112deg, rgba(56, 103, 255, 0.14) 0 1px, transparent 1px 34px);
}

.device-scene {
  position: relative;
  width: min(330px, 88%);
  transform-style: preserve-3d;
  will-change: transform;
}

.device-frame {
  height: 560px;
  overflow: hidden;
  border: 10px solid #1d2326;
  border-radius: 34px;
  background: #f2f4f9;
  box-shadow: 0 30px 70px rgba(32, 37, 34, 0.26);
}

.device-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.stat-chip {
  position: absolute;
  z-index: 2;
  min-width: 126px;
  padding: 11px 13px;
  border: 1px solid rgba(191, 200, 187, 0.94);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-tight);
}

.stat-chip span,
.strip-number {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 780;
}

.stat-chip strong {
  display: block;
  margin-top: 2px;
  font-size: 22px;
  line-height: 1.1;
}

.chip-assets {
  left: -42px;
  top: 86px;
}

.chip-cost {
  right: -56px;
  top: 236px;
}

.chip-warranty {
  left: -30px;
  bottom: 86px;
}

.section-heading {
  margin: 24px 0 12px;
}

.section-heading h2 {
  max-width: 640px;
  font-size: 30px;
}

.grid {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three,
.grid:not(.two) {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.notice,
.toc,
.document {
  padding: 24px;
}

.card {
  position: relative;
  min-height: 196px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.88);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--blue);
}

.card.accent-green::before {
  background: var(--green);
}

.card.accent-amber::before {
  background: var(--amber);
}

.card-label {
  color: var(--blue-ink);
}

.accent-green .card-label {
  color: var(--green-ink);
}

.accent-amber .card-label {
  color: #8a5200;
}

.product-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 6px 0 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.78);
}

.product-strip > div {
  padding: 18px;
  border-right: 1px solid var(--line);
}

.product-strip > div:last-child {
  border-right: 0;
}

.strip-number {
  color: var(--blue);
  font-weight: 900;
}

.notice {
  margin-top: 16px;
  background: linear-gradient(135deg, rgba(255, 247, 216, 0.96), rgba(255, 255, 255, 0.9));
}

.toc,
.document {
  margin-top: 16px;
  background: rgba(255, 255, 255, 0.9);
}

.document {
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.toc ul,
.document ol,
.document ul {
  padding-left: 1.35em;
}

.toc li,
.document li {
  margin: 6px 0;
}

.document p {
  margin: 12px 0;
}

.document h1 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 30px;
  font-weight: 900;
}

.language-nav {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.language-nav a,
.language-nav .pill {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--blue-ink);
  text-decoration: none;
  font-size: 12px;
  font-weight: 780;
}

.language-block {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.language-block:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.language-label {
  display: inline-flex;
  margin: 0 0 12px;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--soft-blue);
  color: var(--blue-ink);
  font-size: 12px;
  font-weight: 850;
}

.site-footer {
  border-top: 1px solid rgba(217, 223, 212, 0.92);
  background: rgba(255, 253, 248, 0.86);
}

.footer-inner,
.site-footer > p {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: space-between;
}

@media (max-width: 980px) {
  .hero-split {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 44px;
  }

  .studio-visual,
  .product-visual {
    min-height: 500px;
  }

  .screen-peek {
    right: 34px;
    width: 220px;
    height: 478px;
  }
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

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

  .page {
    padding-top: 26px;
  }

  .hero,
  .card,
  .notice,
  .toc,
  .document {
    padding: 22px;
  }

  .hero {
    padding-top: 28px;
  }

  h1 {
    font-size: 34px;
  }

  .lead {
    font-size: 16px;
  }

  .grid.two,
  .grid.three,
  .grid:not(.two),
  .product-strip {
    grid-template-columns: 1fr;
  }

  .product-strip > div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-strip > div:last-child {
    border-bottom: 0;
  }

  .studio-visual {
    min-height: 430px;
  }

  .product-visual {
    min-height: 520px;
    padding: 16px;
  }

  .screen-peek {
    right: 18px;
    bottom: -104px;
    width: 190px;
    height: 412px;
  }

  .device-scene {
    width: min(286px, 82%);
  }

  .device-frame {
    height: 500px;
  }

  .stat-chip {
    min-width: 110px;
  }

  .chip-assets {
    left: -24px;
    top: 74px;
  }

  .chip-cost {
    right: -28px;
    top: 230px;
  }

  .chip-warranty {
    left: -20px;
    bottom: 72px;
  }

  .footer-inner {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}