:root {
  --ink: #102027;
  --muted: #5e6b70;
  --line: #dce6e7;
  --soft: #f4f8f8;
  --panel: #ffffff;
  --brand: #0f766e;
  --brand-dark: #115e59;
  --accent: #2563eb;
  --warm: #f4a261;
  --shadow: 0 22px 60px rgba(15, 35, 40, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fbfdfd;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.7;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: rgba(251, 253, 253, 0.92);
  border-bottom: 1px solid rgba(220, 230, 231, 0.8);
  backdrop-filter: blur(14px);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--brand), var(--accent));
}

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

.brand small {
  margin-top: -4px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  padding: 8px 14px;
  border-radius: 8px;
  color: #fff !important;
  background: var(--brand);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  align-items: center;
  gap: clamp(32px, 6vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 9vw, 112px) clamp(20px, 5vw, 72px) 48px;
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.08), transparent 38%),
    linear-gradient(30deg, rgba(37, 99, 235, 0.08), transparent 42%),
    #fbfdfd;
}

.page-hero {
  padding: clamp(64px, 9vw, 110px) clamp(20px, 5vw, 72px);
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.1), transparent 45%),
    #f7fbfb;
}

.profile-hero {
  background:
    linear-gradient(120deg, rgba(37, 99, 235, 0.1), transparent 48%),
    #f7fbfb;
}

.hero-copy,
.page-hero {
  max-width: 760px;
}

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

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 7vw, 72px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: 0;
}

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

.lead {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--brand);
}

.button.secondary {
  color: var(--brand-dark);
  border: 1px solid var(--line);
  background: #fff;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-row span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fff;
  font-size: 13px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.insight-panel {
  width: min(100%, 430px);
  padding: 22px;
  border: 1px solid rgba(220, 230, 231, 0.9);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.panel-top,
.signal-list div,
.contact-card p {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.panel-top {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.panel-top strong {
  color: var(--ink);
}

.score-ring {
  display: grid;
  place-items: center;
  width: 178px;
  height: 178px;
  margin: 28px auto;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fff 0 56%, transparent 57%),
    conic-gradient(var(--brand) 0 86%, #e8eeee 86% 100%);
}

.score-ring span {
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
}

.score-ring small {
  color: var(--muted);
}

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

.signal-list div {
  padding: 12px;
  border-radius: 8px;
  background: var(--soft);
}

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

.section {
  padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

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

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

.service-card,
.steps article,
.reason-grid article,
.content-grid article {
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.service-card {
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  border-radius: 8px;
  color: #fff;
  font-weight: 900;
  background: var(--brand);
}

.service-card p,
.steps p,
.reason-grid p,
.content-grid p,
.contact-section p,
.faq-section p,
.profile-table dd,
.machine-summary p {
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
  background: var(--soft);
}

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

.check-list p {
  position: relative;
  margin: 0;
  padding: 16px 16px 16px 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.check-list p::before {
  position: absolute;
  left: 16px;
  top: 17px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  color: #fff;
  background: var(--brand);
  content: "✓";
  font-size: 12px;
  line-height: 18px;
  text-align: center;
}

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

.content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.steps span {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--warm);
  font-size: 13px;
  font-weight: 900;
}

.quote-section {
  color: #fff;
  background: #102027;
}

.quote-section .eyebrow,
.quote-section p {
  color: #c7f2ee;
}

.reason-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 26px;
}

.reason-grid article {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 32px;
  align-items: start;
}

.contact-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.contact-card p {
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.contact-card p:last-child {
  border-bottom: 0;
}

.contact-card strong {
  min-width: 72px;
}

.contact-card span {
  text-align: right;
}

.faq-section {
  background: var(--soft);
}

.faq-section details {
  max-width: 960px;
  margin: 12px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.faq-section summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-section p {
  margin: 12px 0 0;
}

.profile-table dl {
  max-width: 980px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.profile-table div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
}

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

.profile-table dt,
.profile-table dd {
  margin: 0;
  padding: 16px 18px;
}

.profile-table dt {
  font-weight: 900;
  background: var(--soft);
}

.machine-summary {
  background: #102027;
  color: #fff;
}

.machine-summary p {
  max-width: 980px;
  font-size: 18px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px) 92px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--brand-dark);
  font-weight: 800;
}

.mobile-contact {
  display: none;
}

@media (max-width: 1060px) {
  .site-nav {
    gap: 12px;
    font-size: 13px;
  }

  .service-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  body {
    padding-bottom: 58px;
  }

  .site-header {
    min-height: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 10px 8px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  h1 {
    font-size: 42px;
  }

  .split-section,
  .contact-section,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .service-grid.three,
  .steps,
  .reason-grid {
    grid-template-columns: 1fr;
  }

  .profile-table div {
    grid-template-columns: 1fr;
  }

  .profile-table dd {
    padding-top: 0;
  }

  .site-footer {
    display: block;
  }

  .site-footer a {
    display: inline-block;
    margin-top: 12px;
  }

  .mobile-contact {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--line);
    background: #fff;
  }

  .mobile-contact a {
    display: grid;
    place-items: center;
    min-height: 56px;
    font-weight: 900;
  }

  .mobile-contact a:first-child {
    color: #fff;
    background: var(--brand);
  }
}

@media (max-width: 460px) {
  .site-header {
    padding-inline: 16px;
  }

  .brand strong {
    font-size: 15px;
  }

  h1 {
    font-size: 36px;
  }

  .hero,
  .page-hero,
  .section {
    padding-inline: 16px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .panel-top,
  .signal-list div,
  .contact-card p {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .contact-card span {
    text-align: left;
  }
}