/* Site 5 — Minimal white, green accent only */
:root {
  --bg: #fafafa;
  --ink: #111111;
  --green: #25d366;
  --soft: #6b6b6b;
  --hair: #e6e6e6;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

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

.site-nav {
  border-bottom: 1px solid var(--hair);
  background: #fff;
}

.nav-wide {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-min {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
}

.brand-min svg {
  width: 22px;
  height: 22px;
}

.anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: var(--soft);
}

.anchors a:hover {
  color: var(--ink);
}

.measure {
  width: min(720px, calc(100% - 40px));
  margin: 0 auto;
}

.wide {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  padding: 88px 0 56px;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 560;
  margin-bottom: 20px;
}

.hero p {
  color: var(--soft);
  margin-bottom: 12px;
  font-size: 17px;
}

.line-cta {
  display: inline-block;
  margin-top: 10px;
  color: var(--ink);
  font-weight: 650;
  border-bottom: 2px solid var(--green);
  padding-bottom: 2px;
}

.circles {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 40px;
}

.dot-step {
  display: flex;
  align-items: center;
}

.dot-step i {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  display: grid;
  place-items: center;
  font-style: normal;
  font-weight: 650;
  background: #fff;
}

.dot-step em {
  font-style: normal;
  font-size: 13px;
  margin-left: 10px;
  color: var(--soft);
  min-width: 72px;
}

.dot-step:not(:last-child)::after {
  content: "";
  width: 48px;
  height: 1px;
  background: var(--ink);
  margin: 0 12px;
}

section {
  padding: 72px 0;
}

h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 560;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.sub {
  color: var(--soft);
  margin-bottom: 28px;
}

.step-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.big-c {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--green);
  color: #111;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 14px;
}

.step-row h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-row p {
  color: var(--soft);
  font-size: 14.5px;
}

.hair-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.hair {
  border: 1px solid var(--hair);
  background: #fff;
  padding: 22px 20px;
}

.hair h3 {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: 600;
}

.hair p,
.hair li {
  font-size: 14.5px;
  color: var(--soft);
}

.hair ul {
  padding-left: 18px;
}

.hl-band {
  background: #111;
  color: #fafafa;
  padding: 72px 0;
}

.hl-band h2 {
  color: #fff;
}

.hl-band .sub {
  color: #bdbdbd;
}

.lock-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.lock-row article h3 {
  color: var(--green);
  margin-bottom: 8px;
  font-size: 16px;
}

.lock-row p {
  color: #d0d0d0;
  font-size: 14.5px;
}

.stack-2 {
  display: grid;
  gap: 14px;
}

.line-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--hair);
}

.line-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.line-item p {
  color: var(--soft);
  font-size: 14.5px;
}

.dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.dual h3 {
  margin-bottom: 10px;
}

.dual ul {
  padding-left: 18px;
  color: var(--soft);
}

.dual li + li {
  margin-top: 8px;
}

.bound-note {
  margin-top: 24px;
  padding: 18px 0 0;
  border-top: 1px solid var(--hair);
}

.bound-note ul {
  padding-left: 18px;
  color: var(--soft);
}

.brow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.brow-grid span {
  border: 1px solid var(--hair);
  padding: 12px;
  text-align: center;
  font-size: 14px;
  background: #fff;
}

.faq-block + .faq-block {
  margin-top: 28px;
}

.faq-block h3 {
  font-size: 16px;
  font-weight: 650;
  margin-bottom: 8px;
}

.faq-block p {
  color: var(--soft);
  font-size: 15px;
}

.end {
  border-top: 1px solid var(--hair);
  padding: 36px 0 48px;
  color: var(--soft);
  font-size: 13.5px;
}

.end p + p {
  margin-top: 10px;
}

@media (max-width: 800px) {
  .anchors {
    display: none;
  }

  .step-row,
  .hair-grid,
  .lock-row,
  .dual,
  .brow-grid {
    grid-template-columns: 1fr;
  }

  .circles {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .dot-step:not(:last-child)::after {
    display: none;
  }
}

.hair svg { width: 26px; height: 26px; margin-bottom: 8px; color: #111; display: block; }

.news-min { padding: 72px 0 32px; }
.news-lines { display: grid; gap: 0; max-width: 1100px; margin: 24px auto 0; }
.news-lines article { padding: 20px 0; border-top: 1px solid #ddd; }
.news-lines time { font-size: 12px; color: #666; }
.news-lines h3 { font-size: 20px; margin: 6px 0 8px; font-weight: 600; }