:root {
  --bg: #f4efe7;
  --bg-soft: #fbf8f2;
  --paper: rgba(255, 252, 247, 0.82);
  --paper-solid: #fffdf8;
  --ink: #17181a;
  --ink-soft: #5d615f;
  --ink-faint: #8d918d;
  --line: rgba(23, 24, 26, 0.06);
  --line-strong: rgba(23, 24, 26, 0.11);
  --accent: #b58a4d;
  --accent-deep: #8f6b3c;
  --accent-soft: rgba(181, 138, 77, 0.1);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-soft: 0 22px 54px rgba(28, 24, 18, 0.07);
  --max-width: 1180px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 7rem;
  --font-heading: "Source Han Serif SC", "Songti SC", "STSong", "Noto Serif SC", Georgia, serif;
  --font-body: "Avenir Next", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(181, 138, 77, 0.11), transparent 26%),
    linear-gradient(180deg, #f2ede4 0%, #f7f3ec 26%, #fbf8f2 100%);
}

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

img {
  display: block;
  max-width: 100%;
}

.shell {
  position: relative;
  overflow: clip;
}

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(251, 248, 242, 0.84);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 24px rgba(27, 24, 19, 0.04);
}

.header-inner,
.hero-grid,
.section-head,
.footer-top,
.contact-strip,
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.header-inner {
  padding: 0.95rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.brand-copy strong,
.brand-copy span {
  display: block;
}

.brand-copy strong {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.brand-copy span {
  color: var(--ink-faint);
  font-size: 0.82rem;
  margin-top: 0.18rem;
}

.main-nav {
  display: flex;
  gap: 1.4rem;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a.active {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.38);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.65rem 0.95rem;
  box-shadow: 0 10px 24px rgba(27, 24, 19, 0.05);
}

.header-cta,
.btn,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta,
.btn {
  padding: 0.95rem 1.4rem;
  background: var(--ink);
  color: #f7f3ec;
}

.btn:hover,
.header-cta:hover {
  background: #2a2c2e;
}

.btn-secondary {
  padding: 0.95rem 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.24);
}

.hero {
  padding: var(--space-7) 0 var(--space-8);
}

.hero-grid {
  align-items: stretch;
}

.hero-copy {
  flex: 1.2;
  padding-right: var(--space-5);
}

.hero-panel,
.card,
.city-card,
.scenario-card,
.service-highlight,
.contact-band,
.service-detail,
.service-process,
.service-metric,
.faq-card,
.footer-card {
  background: rgba(255, 252, 247, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.hero-panel {
  flex: 0.82;
  padding: var(--space-5);
}

.eyebrow,
.panel-kicker,
.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  padding: 0.48rem 0.82rem;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 0.76rem;
}

.panel-kicker {
  padding: 0.42rem 0.78rem;
  background: rgba(23, 24, 26, 0.05);
  color: var(--ink-soft);
  font-size: 0.74rem;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.12;
}

h1 {
  margin-top: var(--space-4);
  font-size: clamp(3rem, 6vw, 5.6rem);
  max-width: 11ch;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  max-width: 15ch;
}

h3 {
  font-size: 1.4rem;
}

.lead,
.panel-note,
.card p,
.belief-item p,
.contact-band p,
.service-detail p,
.service-process p,
.faq-card p,
.footer-card p,
.section-head p {
  color: var(--ink-soft);
  line-height: 1.85;
}

.lead {
  margin: var(--space-4) 0 0;
  max-width: 39rem;
  font-size: 1.08rem;
}

.hero-points,
.stat-grid,
.grid,
.service-feature-grid,
.city-grid,
.service-grid,
.detail-grid,
.faq-grid,
.footer-grid,
.belief-grid {
  display: grid;
  gap: var(--space-4);
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-points li {
  padding-top: 1rem;
  border-top: none;
  box-shadow: inset 0 1px 0 rgba(181, 138, 77, 0.14);
  color: var(--ink-soft);
}

.hero-points strong,
.stat strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
  color: var(--ink);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: var(--space-5);
}

.panel-note {
  margin: 1rem 0 0;
}

.stat-grid {
  margin-top: var(--space-5);
  grid-template-columns: 1fr;
}

.stat {
  padding-top: 1rem;
  border-top: none;
  box-shadow: inset 0 1px 0 rgba(23, 24, 26, 0.06);
}

main {
  color: var(--ink);
}

.section {
  padding: var(--space-7) 0;
}

.section-soft {
  background: rgba(255, 255, 255, 0.26);
}

.section-head {
  align-items: end;
  margin-bottom: var(--space-5);
}

.section-head p {
  max-width: 31rem;
  margin: 0;
}

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

.service-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.card,
.city-card,
.scenario-card,
.service-highlight,
.service-metric,
.service-detail,
.service-process,
.faq-card,
.footer-card {
  padding: var(--space-5);
}

.card {
  background: rgba(255, 255, 255, 0.45);
  box-shadow: none;
}

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

.city-card,
.scenario-card,
.service-highlight,
.service-metric {
  background: rgba(255, 255, 255, 0.42);
  box-shadow: none;
}

.card h3 {
  font-size: 1.5rem;
  max-width: 13ch;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: var(--space-4);
}

.chip {
  padding: 0.5rem 0.78rem;
  font-size: 0.74rem;
  background: rgba(23, 24, 26, 0.05);
  color: var(--ink-soft);
}

.inline-link {
  color: var(--accent-deep);
  font-weight: 700;
}

.belief-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.belief-item {
  padding-top: 1.2rem;
  border-top: none;
  box-shadow: inset 0 1px 0 rgba(181, 138, 77, 0.14);
}

.belief-item h3 {
  margin-bottom: 0.8rem;
}

.customer-line {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-top: var(--space-6);
  padding-top: 1.2rem;
  border-top: none;
  box-shadow: inset 0 1px 0 rgba(23, 24, 26, 0.07);
}

.customer-line span {
  flex: 0 0 auto;
  color: var(--ink-faint);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.customer-line p {
  margin: 0;
  color: var(--ink);
  line-height: 1.9;
}

.dark-section {
  background: #1b1c1f;
  color: #f5efe6;
}

.dark-section .section-head p,
.dark-section .card p,
.dark-section .city-card p,
.dark-section .service-highlight p,
.dark-section .service-detail p,
.dark-section .service-process p,
.dark-section .faq-card p,
.dark-section .scenario-card p {
  color: rgba(245, 239, 230, 0.72);
}

.dark-section .card,
.dark-section .city-card,
.dark-section .service-highlight,
.dark-section .scenario-card,
.dark-section .service-detail,
.dark-section .service-process,
.dark-section .faq-card,
.dark-section .service-metric {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.05);
}

.dark-section h2,
.dark-section h3,
.dark-section .customer-line p {
  color: #f5efe6;
}

.dark-section .eyebrow {
  background: rgba(255, 255, 255, 0.08);
  color: #dcc393;
}

.dark-section .inline-link {
  color: #f0cb87;
}

.contact-band {
  padding: var(--space-6);
  background: linear-gradient(180deg, rgba(24, 25, 27, 0.96), rgba(31, 33, 35, 0.98));
  color: #f5efe6;
}

.contact-band .eyebrow {
  background: rgba(255, 255, 255, 0.08);
  color: #dcc393;
}

.contact-band h2,
.contact-band p,
.contact-band .contact-strip {
  color: inherit;
}

.contact-band p {
  margin: 0;
  color: rgba(245, 239, 230, 0.74);
}

.cta-band {
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

.contact-band .btn {
  background: #f5efe6;
  color: #161719;
}

.contact-band .btn-secondary {
  border-color: rgba(255, 255, 255, 0.12);
  color: #f5efe6;
  background: rgba(255, 255, 255, 0.03);
}

.contact-strip {
  flex-wrap: wrap;
  margin-top: var(--space-5);
  padding-top: 1.1rem;
  border-top: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: rgba(245, 239, 230, 0.72);
}

.signature-strip {
  align-items: stretch;
  gap: 1rem;
  padding: 1rem 0 0;
}

.signature-copy {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(181, 138, 77, 0.1);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 251, 244, 0.84), rgba(248, 241, 230, 0.46));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.46);
}

.signature-label {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.3rem 0.62rem;
  border-radius: 999px;
  background: rgba(181, 138, 77, 0.1);
  color: var(--accent-deep);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signature-name {
  color: #2d2315;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.45;
}

.signature-phone {
  display: flex;
  min-width: 11.5rem;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  padding: 1rem 1.15rem;
  border-radius: 22px;
  background: rgba(181, 138, 77, 0.12);
  color: var(--accent-deep);
  border: 1px solid rgba(181, 138, 77, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
  text-align: right;
}

.signature-phone-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(143, 107, 60, 0.74);
}

.signature-phone strong {
  font-size: 1.28rem;
  line-height: 1;
  letter-spacing: 0.02em;
}

.service-hero {
  padding: var(--space-7) 0 4rem;
}

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

.footer {
  padding: var(--space-7) 0 var(--space-6);
  background: #f0ebe3;
}

.footer-top {
  align-items: end;
  margin-bottom: var(--space-5);
}

.footer-top .lead {
  margin-top: 1rem;
}

.footer-grid {
  gap: var(--space-3);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: var(--space-4) 0 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.footer-card {
  background: rgba(255, 255, 255, 0.5);
  box-shadow: none;
}

.footer-card strong {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--font-heading);
}

.footer-bottom {
  color: var(--ink-faint);
  font-size: 0.92rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem 1.2rem;
  margin-top: var(--space-5);
}

.footer-record {
  margin: 0;
  color: var(--ink-faint);
  font-size: 0.92rem;
}

.footer-record a:hover,
.footer-record a:focus-visible {
  color: var(--accent-deep);
}

.floating-call {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.15rem;
  border-radius: 999px;
  background: var(--ink);
  color: #f8f3ec;
  box-shadow: 0 18px 34px rgba(20, 18, 14, 0.16);
  font-weight: 700;
}

.floating-call small {
  display: block;
  margin-bottom: 0.14rem;
  color: rgba(248, 243, 236, 0.72);
  font-size: 0.72rem;
}

@media (max-width: 960px) {
  .header-inner,
  .hero-grid,
  .section-head,
  .footer-top {
    flex-direction: column;
    align-items: stretch;
  }

  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
    padding-top: 1rem;
    border-top: none;
    box-shadow: inset 0 1px 0 rgba(23, 24, 26, 0.05);
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    width: 100%;
  }

  .hero-copy {
    padding-right: 0;
  }

  .grid,
  .service-feature-grid,
  .city-grid,
  .belief-grid,
  .service-grid,
  .detail-grid,
  .faq-grid,
  .footer-grid,
  .hero-points {
    grid-template-columns: 1fr;
  }

  .customer-line,
  .contact-strip,
  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta {
    align-items: flex-start;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.5rem, 13vw, 4rem);
  }

  h2 {
    max-width: none;
  }

  .hero-panel,
  .card,
  .contact-band,
  .service-detail,
  .service-process,
  .faq-card,
  .footer-card {
    padding: var(--space-4);
  }

  .signature-copy,
  .signature-phone {
    width: 100%;
  }

  .signature-phone {
    min-width: 0;
    text-align: left;
  }
}