:root {
  --ink: #15201d;
  --muted: #5f6f68;
  --line: #d9e2dd;
  --paper: #fbfcf9;
  --white: #ffffff;
  --mist: #edf4f0;
  --teal: #0f766e;
  --teal-dark: #0b534e;
  --copper: #b86b3c;
  --sage: #8faa8f;
  --shadow: 0 24px 70px rgba(21, 32, 29, 0.14);
  --radius: 8px;
  --font-body: "Noto Sans CJK SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --font-display: "Microsoft YaHei UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "STZhongsong", "Songti SC", "Noto Serif CJK SC", SimSun, serif;
  --font-ui: "Segoe UI", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --font-number: "DIN Alternate", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  line-height: 1.65;
}

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

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

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

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-family: var(--font-serif);
  font-size: 68px;
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.28;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 76px;
  padding: 16px clamp(20px, 5vw, 72px);
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease, border-color 180ms ease;
}

.site-header.solid,
.site-header.is-scrolled,
.site-header.nav-open {
  color: var(--ink);
  background: rgba(251, 252, 249, 0.95);
  border-bottom-color: rgba(21, 32, 29, 0.08);
  box-shadow: 0 8px 34px rgba(21, 32, 29, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 212px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 11px;
  overflow: hidden;
  background: #0f3935;
  box-shadow: 0 10px 28px rgba(15, 57, 53, 0.22);
}

.brand-mark img {
  width: 100%;
  height: 100%;
}

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

.brand strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.15;
}

.brand small {
  margin-top: 2px;
  font-family: var(--font-ui);
  font-size: 11px;
  opacity: 0.78;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 2px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 8px;
  color: inherit;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-media,
.hero-media img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

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

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(14, 32, 30, 0.9) 0%, rgba(14, 32, 30, 0.76) 38%, rgba(14, 32, 30, 0.28) 74%, rgba(14, 32, 30, 0.08) 100%),
    linear-gradient(0deg, rgba(14, 32, 30, 0.34), rgba(14, 32, 30, 0.08));
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 136px 0 70px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 64px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: block;
  margin: 0 0 14px;
  color: var(--copper);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f1b682;
}

.hero-lede {
  max-width: 720px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 21px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
  font-family: var(--font-ui);
  line-height: 1.2;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--white);
  background: var(--teal);
  box-shadow: 0 16px 38px rgba(15, 118, 110, 0.28);
}

.button.primary:hover {
  background: var(--teal-dark);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.54);
  background: rgba(255, 255, 255, 0.08);
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  color: var(--teal-dark);
  font-family: var(--font-ui);
  font-weight: 800;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 12px;
  max-width: 680px;
  margin: 60px 0 0;
}

.hero-stats div {
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.hero-stats dt {
  font-family: var(--font-number);
  font-size: 25px;
  font-weight: 900;
  line-height: 1.1;
}

.hero-stats dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.hero-panel {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(16px);
}

.panel-label {
  display: block;
  margin-bottom: 18px;
  color: #f1b682;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-panel h2 {
  margin-bottom: 22px;
  color: var(--white);
  font-size: 28px;
  line-height: 1.2;
}

.panel-steps {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.14);
}

.panel-steps div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 16px;
  background: rgba(15, 40, 36, 0.46);
}

.panel-steps strong {
  color: #f1b682;
  font-family: var(--font-number);
  font-size: 18px;
}

.panel-steps span {
  color: rgba(255, 255, 255, 0.84);
  font-size: 15px;
  font-weight: 700;
}

.section {
  padding: clamp(70px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.section-wrap {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.8fr);
  gap: clamp(32px, 7vw, 90px);
  align-items: center;
}

.split p,
.section-heading p,
.page-hero p,
.contact-info p {
  font-size: 17px;
}

.intro-copy p {
  margin-bottom: 24px;
}

.intro-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.intro-points span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--teal-dark);
  background: var(--white);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 800;
}

.home-intro,
.service-entry,
.contact-page {
  background: var(--paper);
}

.home-flow {
  background: var(--mist);
}

.flow-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1fr);
  gap: 42px;
  align-items: start;
}

.flow-heading {
  position: sticky;
  top: 112px;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.flow-grid article {
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.flow-grid span {
  display: block;
  margin-bottom: 38px;
  color: var(--copper);
  font-family: var(--font-number);
  font-size: 20px;
  font-weight: 900;
}

.flow-grid p {
  margin-bottom: 0;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: end;
  margin-bottom: 34px;
}

.section-heading.compact {
  margin-bottom: 28px;
}

.section-heading p {
  max-width: 500px;
}

.entry-grid,
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.entry-card,
.value-grid article,
.prepare-box,
.service-detail,
.scenario-list article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.entry-card {
  min-height: 370px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.entry-card:first-child {
  background: #0f3935;
  color: var(--white);
}

.entry-card:first-child p,
.entry-card:first-child .entry-list li {
  color: rgba(255, 255, 255, 0.74);
}

.entry-card:hover,
.entry-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: var(--shadow);
}

.entry-card-head,
.entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.entry-card-head {
  justify-content: space-between;
  align-items: baseline;
  min-height: 60px;
  margin-bottom: 26px;
}

.entry-card-head small {
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.entry-card:first-child .entry-card-head small {
  color: rgba(255, 255, 255, 0.58);
}

.entry-card-head span,
.service-number {
  color: var(--copper);
  font-family: var(--font-number);
  font-weight: 900;
}

.entry-card:first-child .entry-card-head span {
  color: #f1b682;
}

.entry-card p,
.value-grid p,
.scenario-list p {
  margin-bottom: 0;
}

.entry-list {
  margin: auto 0 0;
  padding: 24px 0 0;
  list-style: none;
}

.entry-list li {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(237, 244, 240, 0.62);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 800;
}

.entry-card:first-child .entry-list li {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.cta-band {
  background: #14221f;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: var(--white);
}

.cta-panel h2 {
  max-width: 690px;
}

.cta-panel p {
  max-width: 650px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

.page-main {
  padding-top: 76px;
}

.page-hero {
  padding: clamp(72px, 9vw, 116px) clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(237, 244, 240, 0.98), rgba(251, 252, 249, 0.98)),
    var(--mist);
}

.page-hero h1 {
  color: var(--ink);
}

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

.service-system {
  background: var(--paper);
}

.service-system-grid {
  display: grid;
  gap: 18px;
}

.service-system-card {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 28px;
  padding: clamp(28px, 4.5vw, 54px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(21, 32, 29, 0.06);
}

.service-system-card.is-featured {
  color: var(--white);
  background: #0f3935;
  border-color: rgba(255, 255, 255, 0.1);
}

.service-system-card.is-featured p,
.service-system-card.is-featured .category-body p,
.service-system-card.is-featured .category-meta small {
  color: rgba(255, 255, 255, 0.76);
}

.category-meta span {
  display: block;
  color: var(--copper);
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
}

.service-system-card.is-featured .category-meta span {
  color: #f1b682;
}

.category-meta small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.category-copy {
  max-width: 880px;
}

.category-copy h2 {
  margin-bottom: 12px;
  font-size: 42px;
}

.category-body {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 6px;
}

.category-body div {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.service-system-card.is-featured .category-body div {
  border-top-color: rgba(255, 255, 255, 0.16);
}

.category-body h3 {
  font-size: 18px;
}

.category-body p {
  margin-bottom: 0;
  font-size: 15px;
}

.business-card-grid {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-system-card:nth-child(2) .business-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.business-card {
  display: flex;
  flex-direction: column;
  min-height: 300px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdfb;
}

.service-system-card.is-featured .business-card {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.07);
}

.business-card-top {
  min-height: 78px;
  margin-bottom: 16px;
}

.business-card-top span {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--copper);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.service-system-card.is-featured .business-card-top span {
  color: #f1b682;
}

.business-card-top h3 {
  margin-bottom: 0;
  font-size: 21px;
}

.business-card p {
  margin-bottom: 22px;
  font-size: 15px;
}

.business-card-meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.service-system-card.is-featured .business-card-meta {
  border-top-color: rgba(255, 255, 255, 0.16);
}

.business-card-meta strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 13px;
}

.service-system-card.is-featured .business-card-meta strong {
  color: rgba(255, 255, 255, 0.92);
}

.business-card-meta span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.service-system-card.is-featured .business-card-meta span {
  color: rgba(255, 255, 255, 0.68);
}

.service-detail-list {
  display: grid;
  gap: 16px;
}

.service-detail {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) minmax(280px, 0.8fr);
  gap: 28px;
  align-items: start;
  padding: clamp(26px, 4vw, 44px);
}

.service-detail h2 {
  font-size: 34px;
}

.service-number {
  font-size: 22px;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  top: 0.76em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  content: "";
  background: var(--sage);
}

.process-page {
  background: var(--paper);
}

.timeline {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.timeline article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 26px;
  padding: 32px;
  background: var(--white);
}

.timeline span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--teal);
  font-weight: 900;
}

.timeline h2 {
  margin-bottom: 8px;
  font-size: 32px;
}

.timeline p {
  max-width: 780px;
  margin-bottom: 0;
}

.scenario-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.scenario-list article {
  min-height: 220px;
  padding: 30px;
}

.scenario-list article:first-child {
  background: #0f3935;
  color: var(--white);
}

.scenario-list article:first-child p {
  color: rgba(255, 255, 255, 0.75);
}

.about-page {
  background: var(--paper);
}

.value-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 48px;
}

.value-grid article {
  min-height: 210px;
  padding: 26px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: clamp(32px, 7vw, 90px);
  align-items: start;
}

.contact-info h2 {
  max-width: 740px;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0;
}

.contact-list div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.contact-list dt {
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 13px;
}

.contact-list dd {
  margin: 4px 0 0;
  font-size: 17px;
  font-family: var(--font-display);
  font-weight: 800;
  word-break: break-word;
}

.prepare-box {
  padding: 28px;
  box-shadow: var(--shadow);
}

.prepare-box h3 {
  margin-bottom: 22px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--white);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1050px) {
  .entry-grid,
  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-detail {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .service-detail .check-list {
    grid-column: 2;
  }

  .service-system-card {
    grid-template-columns: 88px minmax(0, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-panel {
    max-width: 620px;
  }

  .category-body,
  .business-card-grid,
  .service-system-card:nth-child(2) .business-card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 840px) {
  .site-header {
    min-height: 68px;
    padding: 12px 20px;
  }

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

  .site-nav {
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 11px 10px;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(14, 32, 30, 0.92), rgba(14, 32, 30, 0.74)),
      linear-gradient(0deg, rgba(14, 32, 30, 0.34), rgba(14, 32, 30, 0.08));
  }

  .hero-inner {
    width: calc(100% - 36px);
    padding-top: 108px;
  }

  .hero-stats,
  .split,
  .section-heading,
  .contact-layout {
    display: block;
  }

  .hero-stats {
    margin-top: 42px;
  }

  .hero-stats div + div {
    margin-top: 12px;
  }

  .section-heading .text-link {
    margin-top: 6px;
  }

  .prepare-box {
    margin-top: 28px;
  }

  .page-main {
    padding-top: 68px;
  }

  .flow-heading {
    position: static;
  }

  .flow-layout,
  .flow-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: block;
  }

  .site-footer p + p {
    margin-top: 8px;
  }
}

@media (max-width: 620px) {
  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 31px;
  }

  .hero-lede {
    font-size: 18px;
  }

  .hero-panel h2 {
    font-size: 24px;
  }

  .entry-grid,
  .value-grid,
  .scenario-list,
  .contact-list,
  .service-detail,
  .service-system-card,
  .timeline article {
    grid-template-columns: 1fr;
  }

  .service-detail .check-list {
    grid-column: auto;
  }

  .category-body,
  .business-card-grid {
    grid-column: auto;
  }

  .entry-card,
  .scenario-list article,
  .value-grid article {
    min-height: auto;
  }

  .entry-card-head {
    min-height: auto;
    margin-bottom: 24px;
  }

  .category-copy h2,
  .service-detail h2,
  .timeline h2 {
    font-size: 28px;
  }
}