:root {
  --ink: #24302d;
  --muted: #66736f;
  --line: #d7e1dc;
  --paper: #fbf8ef;
  --mint: #dcebdd;
  --green: #5f8468;
  --blue: #5c7ccf;
  --coral: #e98978;
  --gold: #e6bd5b;
  --shadow: 0 22px 60px rgba(36, 48, 45, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #f6fbf7 0%, #fffaf1 48%, #f6f9ff 100%);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 12px clamp(18px, 4vw, 64px);
  background: rgba(255, 252, 244, 0.88);
  border-bottom: 1px solid rgba(215, 225, 220, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 19px;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  padding: 9px 12px;
  border-radius: 8px;
}

.nav a:hover {
  background: rgba(95, 132, 104, 0.1);
  color: var(--ink);
}

.hero {
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 76px);
  padding: clamp(44px, 7vw, 86px) clamp(18px, 6vw, 92px) 54px;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(58px, 9vw, 118px);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  letter-spacing: 0;
}

.hero-text,
.scene-copy p,
.download-section p,
.feature-grid p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 28px;
  font-size: 18px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
  border: 1px solid transparent;
}

.button.primary {
  color: #fff;
  background: var(--green);
  box-shadow: 0 12px 24px rgba(95, 132, 104, 0.22);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
}

.desktop-demo {
  width: min(100%, 720px);
  justify-self: center;
  border: 1px solid rgba(175, 194, 185, 0.72);
  border-radius: 8px;
  background: #f9fbfa;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.window-bar {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: #fffdf7;
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
}

.window-bar span:nth-child(2) {
  background: var(--gold);
}

.window-bar span:nth-child(3) {
  background: #75b88c;
}

.desktop-area {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(220, 235, 221, 0.9), rgba(246, 249, 255, 0.95)),
    repeating-linear-gradient(0deg, rgba(36, 48, 45, 0.04) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(36, 48, 45, 0.04) 0 1px, transparent 1px 34px);
}

.hero-pet {
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: min(45vw, 245px);
  max-width: 70%;
  transform: translateX(-50%);
  filter: drop-shadow(0 20px 24px rgba(36, 48, 45, 0.2));
  animation: breathe 3.2s ease-in-out infinite;
}

.status-panel,
.chat-bubble,
.tool-dock {
  position: absolute;
  border: 1px solid rgba(175, 194, 185, 0.74);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 30px rgba(36, 48, 45, 0.12);
  backdrop-filter: blur(14px);
}

.status-panel {
  left: 26px;
  top: 30px;
  width: 150px;
  padding: 12px;
  border-radius: 8px;
}

.status-top {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}

.status-top strong {
  color: var(--ink);
}

.meter {
  height: 7px;
  border-radius: 999px;
  background: rgba(36, 48, 45, 0.1);
  overflow: hidden;
  margin-top: 9px;
}

.meter span {
  display: block;
  height: 100%;
  background: var(--coral);
}

.meter.mint span {
  background: var(--green);
}

.meter.gold span {
  background: var(--gold);
}

.chat-bubble {
  right: 30px;
  top: 76px;
  max-width: 230px;
  padding: 13px 15px;
  border-radius: 8px;
  color: var(--ink);
  line-height: 1.55;
}

.tool-dock {
  right: 42px;
  bottom: 92px;
  display: grid;
  gap: 8px;
  padding: 8px;
  border-radius: 8px;
}

.tool-dock span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--paper);
  color: var(--green);
  font-weight: 900;
}

.feature-band,
.scene-section,
.download-section {
  padding: 78px clamp(18px, 6vw, 92px);
}

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

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article {
  min-height: 245px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 12px 32px rgba(36, 48, 45, 0.08);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 20px;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
}

.feature-grid article:nth-child(2) .feature-icon {
  background: var(--coral);
}

.feature-grid article:nth-child(3) .feature-icon {
  background: var(--green);
}

.feature-grid article:nth-child(4) .feature-icon {
  background: var(--gold);
  color: var(--ink);
}

.scene-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}

.check-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
  display: grid;
  gap: 12px;
  color: var(--ink);
}

.check-list li {
  position: relative;
  padding-left: 28px;
  line-height: 1.65;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 900;
}

.pose-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.pose-strip figure {
  margin: 0;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  align-items: center;
  padding: 24px 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
  overflow: hidden;
}

.pose-strip img {
  width: 100%;
  max-width: 210px;
  height: 275px;
  object-fit: contain;
  filter: drop-shadow(0 18px 22px rgba(36, 48, 45, 0.16));
}

.pose-strip figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-weight: 700;
}

.download-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 0 clamp(18px, 6vw, 92px) 72px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdf7;
  box-shadow: var(--shadow);
}

.download-section h2 {
  margin-bottom: 10px;
}

.download-section p {
  max-width: 660px;
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 6vw, 92px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: #f8fbf8;
  font-size: 14px;
}

.site-footer strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}

.beian-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}

.beian-links a:hover {
  color: var(--green);
  text-decoration: underline;
}

@keyframes breathe {
  0%,
  100% {
    transform: translateX(-50%) translateY(0) scale(1);
  }
  50% {
    transform: translateX(-50%) translateY(-6px) scale(1.015);
  }
}

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

  .hero {
    min-height: auto;
  }

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

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

@media (max-width: 680px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding-top: 36px;
  }

  .desktop-area {
    min-height: 420px;
  }

  .status-panel {
    left: 14px;
    top: 16px;
  }

  .chat-bubble {
    left: 18px;
    right: 18px;
    top: 128px;
    max-width: none;
  }

  .tool-dock {
    right: 18px;
    bottom: 70px;
  }

  .hero-pet {
    width: 230px;
  }

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

  .feature-grid article {
    min-height: auto;
  }

  .pose-strip figure {
    min-height: 310px;
  }

  .pose-strip img {
    height: 230px;
  }

  .download-section {
    margin-left: 18px;
    margin-right: 18px;
    padding: 24px;
  }

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

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