:root {
  --ink: #17212b;
  --muted: #5f6b76;
  --line: #dfe6e8;
  --paper: #ffffff;
  --soft: #f4f8f7;
  --teal: #0f766e;
  --teal-dark: #115e59;
  --amber: #f59e0b;
  --red: #b91c1c;
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #ffffff;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

code {
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: #eef3f2;
  font-size: 0.92em;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.5rem 0.75rem;
  background: var(--ink);
  color: #fff;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 230, 232, 0.86);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: min(1120px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0;
}

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

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-links a {
  padding: 0.55rem 0.7rem;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  background: var(--soft);
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 2rem;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 48px;
}

.hero-copy {
  min-width: 0;
  padding-top: 1rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--teal-dark);
  font-size: 0.88rem;
  font-weight: 700;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 1rem;
  font-size: clamp(2.15rem, 5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.45rem;
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.hero-text {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 700;
}

.btn.primary {
  border-color: var(--teal);
  background: var(--teal);
  color: #fff;
}

.btn.ghost {
  background: #fff;
}

.quick-panel {
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-size: 0.92rem;
}

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

.contact-card {
  padding: 1.15rem;
}

.muted {
  color: var(--muted);
}

.contact-phone {
  display: block;
  margin: 0.35rem 0 1rem;
  color: var(--red);
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.1;
}

.qr-wrap {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  margin-top: 1rem;
}

.qr-wrap img,
.qr-placeholder {
  width: 112px;
  height: 112px;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
}

.qr-placeholder {
  display: grid;
  place-items: center;
  padding: 0.5rem;
  background: repeating-linear-gradient(45deg, #f8faf9, #f8faf9 8px, #edf4f2 8px, #edf4f2 16px);
  color: var(--muted);
  text-align: center;
  font-size: 0.78rem;
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.section.band {
  width: 100%;
  padding: 56px max(16px, calc((100% - 1120px) / 2));
  background: var(--soft);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 1.35rem;
}

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

.service-card {
  min-height: 188px;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.service-card:hover,
.service-card:focus {
  outline: none;
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.5);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
}

.service-card.is-active {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

.service-card span {
  display: inline-grid;
  width: 36px;
  height: 36px;
  margin-bottom: 0.8rem;
  place-items: center;
  border-radius: 8px;
  background: #fff7ed;
  color: #9a3412;
  font-weight: 800;
}

.service-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.trust-item {
  min-height: 160px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.trust-icon {
  display: inline-grid;
  width: 34px;
  height: 34px;
  margin-bottom: 0.75rem;
  place-items: center;
  border-radius: 8px;
  background: #ecfeff;
  color: #155e75;
  font-weight: 800;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

figure {
  margin: 0;
}

.image-slot {
  display: grid;
  min-height: 190px;
  place-items: center;
  border: 1px dashed #b7c7c9;
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  font-weight: 700;
}

figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

summary {
  cursor: pointer;
  padding: 1rem;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 1rem 1rem;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 88px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.footer-links a {
  color: var(--muted);
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.beian-link img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.mobile-actions {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 12;
  display: none;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  background: #fff;
}

.mobile-actions a {
  display: grid;
  min-height: 56px;
  place-items: center;
  font-weight: 800;
}

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

.noscript {
  padding: 1rem;
  background: #fff7ed;
  color: #7c2d12;
}

@media (max-width: 860px) {
  .header-inner {
    min-height: 64px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 40px;
  }

  .service-grid,
  .trust-grid,
  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .mobile-actions {
    display: grid;
  }
}

@media (max-width: 520px) {
  .hero-actions,
  .btn {
    width: 100%;
  }

  .qr-wrap {
    grid-template-columns: 1fr;
  }
}