* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: auto;
}

body {
  background: #F7F1E8;
  color: #1A2A2A;
  font-family: system-ui, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

h1,
h2,
h3 {
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-weight: 600;
}

a {
  color: #0D7377;
  text-decoration: none;
}

a:hover {
  color: #14919B;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

.masthead {
  position: static;
  padding: 28px 0 8px;
  text-align: center;
  background: #F7F1E8;
}

.logo-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #0D7377;
  margin-bottom: 18px;
}

.wordmark {
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-size: 20px;
  letter-spacing: 0;
  color: #1A2A2A;
}

.nav-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  padding: 8px 0 22px;
  border-bottom: 1px solid #d9cfc0;
}

.nav-line a {
  font-size: 14px;
  color: #1A2A2A;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.nav-line a:hover,
.nav-line a:focus {
  border-bottom-color: #14919B;
  color: #0D7377;
}

.hero-split {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 48px;
  align-items: start;
  padding: 48px 0 36px;
}

.hero-split h1 {
  font-size: 34px;
  line-height: 1.4;
  color: #0D7377;
  margin-bottom: 18px;
}

.hero-split p {
  margin-bottom: 14px;
}

.vline {
  border-left: 2px solid #14919B;
  padding-left: 22px;
  margin-top: 8px;
}

.vline-item {
  position: relative;
  padding-bottom: 22px;
}

.vline-item:last-child {
  padding-bottom: 0;
}

.vline-item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #14919B;
  border: 2px solid #F7F1E8;
}

.vline-item strong {
  display: block;
  color: #0D7377;
  margin-bottom: 4px;
}

.block {
  padding: 42px 0;
}

.block h2 {
  font-size: 26px;
  color: #0D7377;
  margin-bottom: 12px;
}

.intro {
  margin-bottom: 26px;
}

.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.pain {
  background: #fffdf8;
  border-radius: 4px;
  padding: 22px 22px 22px 18px;
  border-left: 6px solid #0D7377;
}

.pain h3 {
  margin: 8px 0 10px;
  font-size: 19px;
}

.flow {
  display: block;
}

.flow-step {
  display: grid;
  grid-template-columns: 28px 1fr;
  column-gap: 18px;
  position: relative;
  padding-bottom: 28px;
}

.flow-step:last-child {
  padding-bottom: 0;
}

.flow-step::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 16px;
  bottom: 0;
  width: 2px;
  background: #14919B;
}

.flow-step:last-child::before {
  display: none;
}

.dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #0D7377;
  margin-top: 6px;
  z-index: 1;
}

.flow-step h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

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

.tile {
  background: #fffdf8;
  border-radius: 4px;
  padding: 20px;
}

.tile .ico {
  width: 36px;
  height: 36px;
  color: #0D7377;
}

.tile h3 {
  margin: 10px 0 8px;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.col {
  background: #fffdf8;
  border-radius: 4px;
  padding: 22px;
}

.col h3 {
  color: #0D7377;
  margin-bottom: 10px;
}

.bound-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.qa {
  border-top: 1px solid #d9cfc0;
}

.qa-item {
  padding: 16px 0;
  border-bottom: 1px solid #d9cfc0;
}

.qa-item dt {
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-weight: 600;
  margin-bottom: 8px;
}

.qa-item dd {
  margin: 0;
}

.foot {
  background: #E8DFD0;
  text-align: center;
  padding: 36px 28px 28px;
  margin-top: 20px;
}

.foot p {
  max-width: 720px;
  margin: 0 auto 12px;
  font-size: 14px;
}

@media (max-width: 860px) {
  .hero-split,
  .pain-grid,
  .scene-row,
  .compare,
  .bound-list {
    grid-template-columns: 1fr;
  }
}