:root {
  --ink: #132522;
  --muted: #64716f;
  --line: #dbe8e5;
  --bg: #f5faf9;
  --panel: #ffffff;
  --teal: #0d9488;
  --blue: #2563eb;
  --gold: #c99a4a;
  --deep: #0f3f3c;
  --shadow: 0 18px 42px rgba(18, 64, 58, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 5vw;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 232, 229, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  border-radius: 50%;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 11px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #38504d;
  font-size: 15px;
}

.site-nav a {
  padding: 10px 0;
}

.site-nav a:hover {
  color: var(--teal);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  padding: 10px;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 36px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 56px 5vw 38px;
  background:
    radial-gradient(circle at 12% 18%, rgba(13, 148, 136, 0.16), transparent 30%),
    linear-gradient(120deg, #f8fffd 0%, #eef8f7 54%, #ffffff 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 74px);
  line-height: 1.08;
}

.lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: #3b5551;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.primary-action,
.ghost-action,
.consult-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
}

.primary-action,
.consult-form button {
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  box-shadow: 0 14px 28px rgba(13, 148, 136, 0.24);
}

.ghost-action {
  color: var(--deep);
  background: #fff;
  border: 1px solid var(--line);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 620px;
  margin-top: 36px;
}

.hero-stats span {
  padding: 14px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(219, 232, 229, 0.85);
  border-radius: 8px;
  color: var(--muted);
}

.hero-stats strong {
  display: block;
  color: var(--deep);
  font-size: 22px;
  line-height: 1.2;
}

.hero-media {
  align-self: stretch;
  min-height: 480px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 5vw;
  transform: translateY(-18px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.trust-strip div {
  padding: 24px;
  background: #fff;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  margin-bottom: 6px;
  font-size: 18px;
}

.trust-strip span {
  color: var(--muted);
  font-size: 14px;
}

.section,
.consult {
  padding: 78px 5vw;
}

.muted {
  background: #edf7f5;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading.align-left {
  margin: 0;
  text-align: left;
}

.section-heading h2,
.consult h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
}

.section-heading p:not(.eyebrow),
.consult p,
.site-footer p {
  color: var(--muted);
}

.feature-grid,
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article,
.team-grid article,
.service-list article,
.faq details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(18, 64, 58, 0.06);
}

.feature-grid article {
  padding: 26px;
}

.number {
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
}

h3 {
  margin: 8px 0 10px;
  font-size: 20px;
  line-height: 1.3;
}

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

.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 1040px;
  margin: 0 auto;
}

.service-list article {
  padding: 28px;
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: 42px;
  align-items: start;
}

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

.timeline li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.timeline li::before {
  content: counter(step, decimal-leading-zero);
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: #fff;
  background: var(--deep);
  border-radius: 50%;
  font-weight: 900;
}

.timeline strong,
.timeline span {
  display: block;
  grid-column: 2;
}

.timeline span {
  color: var(--muted);
  grid-row: 2;
}

.team-section {
  background: linear-gradient(180deg, #fff 0%, #f3faf8 100%);
}

.team-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.team-grid article {
  padding: 28px;
  text-align: center;
}

.avatar {
  display: grid;
  width: 76px;
  height: 76px;
  margin: 0 auto 18px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--deep), var(--teal));
  border-radius: 50%;
  font-weight: 900;
}

.faq {
  max-width: 920px;
  margin: 0 auto;
}

.faq details {
  margin-top: 14px;
  padding: 18px 22px;
}

.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
}

.faq p {
  margin: 12px 0 0;
  color: var(--muted);
}

.consult {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(320px, 1fr);
  gap: 42px;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(13, 63, 60, 0.94), rgba(13, 148, 136, 0.9)),
    #0f3f3c;
}

.consult p,
.consult .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.consult-form {
  display: grid;
  gap: 14px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

.consult-form label {
  display: grid;
  gap: 6px;
}

.consult-form span {
  font-weight: 800;
}

.consult-form input,
.consult-form select {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid transparent;
  border-radius: 6px;
}

.consult-form button {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.form-note {
  min-height: 24px;
  margin: 0;
  font-size: 14px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 5vw 92px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 6px 0 0;
}

.bottom-bar {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 18;
  display: grid;
  gap: 10px;
}

.bottom-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  min-height: 44px;
  padding: 0 18px;
  color: #fff;
  background: var(--deep);
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-weight: 800;
}

.bottom-bar a:last-child {
  background: var(--teal);
}

@media (max-width: 920px) {
  .site-header {
    min-height: 64px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 5vw 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    min-height: auto;
    padding-top: 34px;
  }

  .hero-media {
    min-height: 360px;
    order: -1;
  }

  .trust-strip,
  .feature-grid,
  .team-grid,
  .service-list,
  .split,
  .consult {
    grid-template-columns: 1fr;
  }

  .trust-strip {
    transform: none;
    margin-top: 24px;
  }

  .feature-grid {
    gap: 14px;
  }
}

@media (max-width: 560px) {
  .brand small {
    display: none;
  }

  .brand strong {
    font-size: 16px;
  }

  .hero {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-media {
    min-height: 260px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .section,
  .consult {
    padding: 56px 18px;
  }

  .trust-strip {
    margin-left: 18px;
    margin-right: 18px;
  }

  .site-footer {
    display: block;
    padding: 28px 18px 92px;
  }

  .bottom-bar {
    left: 0;
    right: 0;
    bottom: 0;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    padding: 8px;
    background: rgba(255, 255, 255, 0.94);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(12px);
  }

  .bottom-bar a {
    min-width: 0;
    border-radius: 6px;
  }
}