:root {
  color-scheme: light;
  --ink: #141414;
  --muted: #5d6670;
  --line: #dce2e5;
  --paper: #f7f8f4;
  --white: #ffffff;
  --teal: #0f7b78;
  --coral: #d8644d;
  --graphite: #2d3439;
  --soft: #eef3f0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(20px, 4vw, 56px);
  background: rgba(247, 248, 244, 0.88);
  border-bottom: 1px solid rgba(20, 20, 20, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  font-weight: 800;
  color: var(--graphite);
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.nav-cta {
  padding: 8px 14px;
  background: var(--ink);
  color: var(--white);
  border-radius: 6px;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--graphite);
}

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

.hero-image {
  object-fit: cover;
}

.hero-shade {
  background: linear-gradient(90deg, rgba(10, 12, 13, 0.78), rgba(10, 12, 13, 0.28) 48%, rgba(10, 12, 13, 0.04));
}

.hero-content {
  position: relative;
  max-width: 760px;
  padding: 132px clamp(20px, 5vw, 72px) 72px;
  color: var(--white);
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.hero-copy {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

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

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 800;
}

.button.primary {
  background: var(--teal);
  color: var(--white);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: var(--white);
}

.section,
.band {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  padding-top: 1px;
  padding-bottom: 1px;
  background: var(--line);
}

.stat {
  min-height: 132px;
  padding: 28px;
  background: var(--white);
}

.stat strong {
  display: block;
  color: var(--teal);
  font-size: 42px;
  line-height: 1;
}

.stat span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.split,
.pricing {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  gap: clamp(36px, 6vw, 76px);
  align-items: start;
}

.timeline {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 8px 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.timeline span {
  grid-row: span 2;
  color: var(--teal);
  font-weight: 900;
}

.timeline b {
  font-size: 18px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
}

.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--graphite);
}

.ba-panel {
  position: relative;
  min-height: 380px;
  overflow: hidden;
}

.ba-panel img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
}

.ba-panel.before img {
  filter: blur(3px) saturate(0.62) brightness(0.82);
  transform: scale(1.03);
}

.ba-panel.after img {
  filter: saturate(1.12) contrast(1.08) brightness(1.06);
}

.ba-panel span {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 1;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 6px;
  font-weight: 900;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.tool-grid article {
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tool-grid p,
.pricing p,
.split p {
  color: var(--muted);
}

ul {
  margin: 18px 0 0;
  padding-left: 18px;
}

.deliverables {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  background: var(--soft);
}

.deliverable-list {
  display: grid;
  gap: 1px;
  background: var(--line);
}

.deliverable-list p {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  margin: 0;
  padding: 22px;
  background: var(--white);
}

.deliverable-list span {
  color: var(--muted);
}

.price-box {
  align-self: stretch;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.price-box span {
  color: var(--muted);
  font-weight: 800;
}

.price-box strong {
  color: var(--teal);
  font-size: 76px;
  line-height: 1;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  nav {
    width: 100%;
    gap: 12px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-content {
    padding-top: 156px;
  }

  .stats,
  .split,
  .pricing,
  .before-after,
  .tool-grid,
  .deliverables {
    grid-template-columns: 1fr;
  }

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