:root {
  --ink: #14213d;
  --ink-2: #2e405f;
  --muted: #667085;
  --paper: #fbfaf6;
  --soft: #f0f5f1;
  --white: #ffffff;
  --line: #d9e1dc;
  --green: #0f7b5f;
  --green-dark: #0a4f43;
  --coral: #e76f51;
  --gold: #d9a441;
  --shadow: 0 20px 60px rgba(20, 33, 61, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 12px clamp(18px, 5vw, 72px);
  background: rgba(251, 250, 246, 0.92);
  border-bottom: 1px solid rgba(217, 225, 220, 0.9);
  backdrop-filter: blur(16px);
}

.brand,
.header-actions,
.nav,
.hero-actions,
.intent-actions,
.contact-methods {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.nav {
  gap: 28px;
  color: var(--ink-2);
  font-size: 15px;
}

.header-actions {
  gap: 10px;
}

.lang-toggle,
.header-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  font-weight: 800;
  white-space: nowrap;
}

.lang-toggle,
.secondary-btn {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
}

.header-cta,
.primary-btn {
  color: var(--white);
  background: var(--green);
  border: 1px solid var(--green);
}

.primary-btn:hover,
.header-cta:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.82fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(44px, 8vw, 92px) clamp(18px, 5vw, 72px) clamp(52px, 7vw, 84px);
  background:
    linear-gradient(115deg, rgba(15, 123, 95, 0.14), transparent 42%),
    linear-gradient(180deg, #fbfaf6 0%, #eef6f1 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-lede,
.section-heading p,
.service-card p,
.proof-list p,
.process-grid p,
.case-grid p,
.contact-copy p,
.form-status {
  color: var(--muted);
}

.hero-lede {
  max-width: 720px;
  font-size: clamp(18px, 2vw, 23px);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-visual {
  position: relative;
  min-height: 560px;
  padding: 26px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 16%, rgba(217, 164, 65, 0.24), transparent 28%),
    linear-gradient(145deg, #ffffff 0%, #eef6f1 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 64px 42px auto;
  height: 230px;
  border: 2px solid rgba(15, 123, 95, 0.18);
  border-bottom: 0;
  border-radius: 999px 999px 0 0;
}

.hero-logo {
  position: relative;
  display: block;
  width: min(260px, 64%);
  aspect-ratio: 1;
  object-fit: contain;
  margin: 12px auto 28px;
}

.route-card {
  position: relative;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.route-card-main span,
.route-grid span,
.service-card span,
.process-grid span {
  display: block;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.route-card-main strong {
  display: block;
  margin-top: 6px;
  font-size: 28px;
  line-height: 1.16;
}

.route-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.route-grid div {
  min-height: 110px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.route-grid strong {
  display: block;
  margin-top: 20px;
}

.intent-band {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin: -32px clamp(18px, 5vw, 72px) 0;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 40px rgba(20, 33, 61, 0.1);
}

.intent-band h2 {
  margin-bottom: 0;
  font-size: clamp(24px, 3vw, 36px);
}

.intent-actions {
  flex-wrap: wrap;
  gap: 10px;
}

.intent-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  min-height: 44px;
  padding: 0 18px;
  color: var(--green-dark);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 900;
}

.section {
  padding: clamp(64px, 8vw, 102px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 840px;
  margin-bottom: 30px;
}

.service-grid,
.process-grid,
.case-grid {
  display: grid;
  gap: 16px;
}

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

.service-card,
.case-grid article,
.process-grid div {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-card {
  min-height: 236px;
  padding: 24px;
}

.service-card h3 {
  margin-top: 34px;
}

.optional-card {
  background: #fffbf0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.78fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
  background: #eef6f1;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.proof-list div {
  padding: 20px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.proof-list strong {
  display: block;
  margin-bottom: 6px;
}

.proof-list p,
.service-card p,
.process-grid p,
.case-grid p {
  margin-bottom: 0;
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-grid div {
  min-height: 230px;
  padding: 22px;
}

.process-grid h3 {
  margin-top: 34px;
}

.use-cases {
  padding-top: 0;
}

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

.case-grid article {
  min-height: 220px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(15, 123, 95, 0.08), transparent 48%),
    var(--white);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 0.94fr);
  gap: clamp(28px, 6vw, 80px);
  padding: clamp(64px, 8vw, 104px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background: #122c31;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-methods {
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0;
}

.contact-methods a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 6px;
}

.wechat-qr {
  width: 188px;
  max-width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
}

.inquiry-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 24px;
  color: var(--ink);
  background: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 7px;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fbfcfb;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: none;
}

.inquiry-form textarea {
  resize: vertical;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(15, 123, 95, 0.14);
}

.full-field {
  grid-column: 1 / -1;
}

.form-status {
  margin: 0;
  min-height: 24px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: var(--paper);
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero,
  .split-section,
  .contact-section,
  .intent-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 500px;
  }

  .service-grid,
  .process-grid,
  .case-grid {
    grid-template-columns: 1fr 1fr;
  }

  .intent-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    min-height: auto;
  }

  .brand span {
    max-width: 130px;
    line-height: 1.15;
  }

  .header-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .header-cta,
  .lang-toggle {
    min-height: 38px;
    padding: 0 12px;
    font-size: 13px;
  }

  .hero {
    padding-top: 38px;
  }

  .hero-visual {
    min-height: 0;
    padding: 18px;
  }

  .hero-visual::before {
    inset: 48px 24px auto;
    height: 170px;
  }

  .route-card-main strong {
    font-size: 23px;
  }

  .route-grid,
  .service-grid,
  .process-grid,
  .case-grid,
  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .intent-band {
    margin-top: -18px;
    padding: 18px;
  }

  .intent-actions a {
    flex: 1 1 120px;
  }

  .service-card,
  .process-grid div,
  .case-grid article {
    min-height: auto;
  }

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