:root {
  color-scheme: dark;
  --bg: #15120d;
  --bg-2: #1f1a13;
  --surface: rgba(37, 31, 23, 0.86);
  --surface-strong: #2c251b;
  --text: #f8efe2;
  --muted: #b8aa98;
  --line: rgba(255, 226, 185, 0.16);
  --amber: #f0ad48;
  --amber-2: #ffcf84;
  --green: #86c988;
  --red: #d96f55;
  --blue: #7ca7ff;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 80% 8%, rgba(240, 173, 72, 0.12), transparent 28rem),
    linear-gradient(180deg, #15120d 0%, #1b1711 48%, #13100c 100%);
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: 0;
}

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

code {
  color: var(--amber-2);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(18px, 5vw, 64px);
  background: rgba(21, 18, 13, 0.72);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 10px 14px;
  color: var(--muted);
  font-size: 14px;
  border-radius: 999px;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero-section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 470px);
  gap: clamp(32px, 6vw, 90px);
  align-items: center;
  min-height: 100vh;
  padding: 118px clamp(18px, 6vw, 86px) 72px;
  overflow: hidden;
}

.hero-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg img {
  position: absolute;
  width: min(720px, 80vw);
  right: -120px;
  top: 88px;
  opacity: 0.09;
  filter: blur(1px);
}

.hero-content {
  position: relative;
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber-2);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(58px, 12vw, 142px);
  line-height: 0.9;
  font-weight: 900;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.06;
}

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

.hero-copy {
  max-width: 600px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.primary-button {
  background: var(--amber);
  color: #211407;
  box-shadow: 0 18px 40px rgba(240, 173, 72, 0.22);
}

.secondary-button {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.download-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.phone-stage {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone {
  width: min(100%, 372px);
  min-height: 690px;
  padding: 18px;
  border: 1px solid rgba(255, 226, 185, 0.18);
  border-radius: 44px;
  background:
    linear-gradient(180deg, rgba(255, 246, 232, 0.08), rgba(255, 255, 255, 0.02)),
    #19140f;
  box-shadow: var(--shadow);
}

.phone-top,
.app-title,
.today-panel,
.task-list,
.timeline {
  position: relative;
  z-index: 1;
}

.phone-top {
  display: flex;
  justify-content: space-between;
  color: rgba(248, 239, 226, 0.82);
  font-size: 13px;
  padding: 4px 8px 18px;
}

.app-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.mini-logo {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--amber);
  color: #211407;
  font-weight: 900;
}

.app-title strong {
  display: block;
  font-size: 22px;
}

.app-title small {
  color: var(--muted);
}

.today-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.today-panel div,
.task,
.timeline {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.today-panel div {
  padding: 14px 12px;
}

.today-panel small,
.timeline span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.today-panel strong {
  display: block;
  margin-top: 8px;
  font-size: 21px;
}

.task-list {
  display: grid;
  gap: 10px;
}

.task {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 14px;
}

.task span {
  width: 20px;
  height: 20px;
  border: 2px solid var(--amber);
  border-radius: 50%;
}

.task.done span {
  background: var(--amber);
  box-shadow: inset 0 0 0 5px #211407;
}

.task p {
  margin: 0;
  color: var(--text);
}

.timeline {
  margin-top: 16px;
  padding: 16px;
}

.timeline div {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.timeline div:last-child {
  border-bottom: 0;
}

.section {
  padding: clamp(62px, 9vw, 116px) clamp(18px, 6vw, 86px);
}

.strip {
  background: rgba(255, 255, 255, 0.025);
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head p,
.split p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

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

.feature-grid article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
}

.feature-grid article p {
  color: var(--muted);
  line-height: 1.7;
}

.icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: rgba(240, 173, 72, 0.16);
  color: var(--amber-2);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.85fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
}

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

.privacy-list div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}

.privacy-list strong,
.privacy-list span {
  display: block;
}

.privacy-list span {
  margin-top: 8px;
  color: var(--muted);
}

.updates {
  background: #0f0d0a;
}

.code-block {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #16120d;
}

.code-block pre {
  margin: 0;
  padding: 24px;
  color: #f6dfbb;
  font-size: 15px;
  line-height: 1.7;
}

.final-cta {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
}

.final-cta img {
  width: 92px;
  height: 92px;
  border-radius: 24px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 6vw, 86px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 880px) {
  .site-header {
    height: 64px;
  }

  .nav-links {
    display: none;
  }

  .hero-section,
  .split,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .hero-section {
    padding-top: 104px;
  }

  .phone {
    min-height: 620px;
  }

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

  .final-cta {
    align-items: start;
  }

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

@media (max-width: 420px) {
  .hero-actions a {
    width: 100%;
  }

  .phone {
    border-radius: 34px;
    padding: 14px;
  }

  .today-panel {
    grid-template-columns: 1fr;
  }
}