:root {
  --ink: #102536;
  --muted: #5d6f7c;
  --line: #dce7ee;
  --paper: #ffffff;
  --soft: #f3f8fb;
  --navy: #0d334a;
  --teal: #12877f;
  --teal-2: #e7f6f4;
  --gold: #c6903f;
  --shadow: 0 22px 70px rgba(16, 37, 54, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(220, 231, 238, 0.8);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 245px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  font-weight: 800;
}

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

.brand strong {
  font-size: 17px;
}

.brand small {
  max-width: 280px;
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.main-nav {
  display: flex;
  gap: 28px;
  color: #243d50;
  font-size: 14px;
}

.main-nav a {
  padding: 7px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  color: var(--teal);
  border-color: var(--teal);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  min-width: 94px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
}

.lang-toggle span {
  display: inline-flex;
  min-width: 38px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 12px;
}

.lang-toggle .active {
  color: #fff;
  background: var(--navy);
}

.header-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
}

.header-cta,
.primary-btn {
  color: #fff;
  background: var(--teal);
  box-shadow: 0 10px 28px rgba(18, 135, 127, 0.22);
}

.secondary-btn {
  color: var(--navy);
  background: #fff;
  border: 1px solid rgba(16, 37, 54, 0.16);
}

.hero {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

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

.hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    linear-gradient(90deg, rgba(248, 252, 255, 0.96) 0%, rgba(248, 252, 255, 0.9) 37%, rgba(248, 252, 255, 0.5) 68%, rgba(248, 252, 255, 0.22) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.76));
}

.hero-content {
  max-width: 760px;
  padding: 104px clamp(22px, 7vw, 108px) 56px;
}

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

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

h1 {
  max-width: 680px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-lede {
  max-width: 640px;
  margin-bottom: 30px;
  color: #31495a;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 42px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 670px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 37, 54, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow);
}

.trust-strip div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.86);
}

.trust-strip dt {
  font-size: 22px;
  font-weight: 900;
}

.trust-strip dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 88px clamp(22px, 6vw, 92px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
  background: #fff;
}

.intro-grid p:last-child {
  color: #425667;
  font-size: 19px;
}

.seminar-section {
  display: grid;
  grid-template-columns: minmax(340px, 0.95fr) minmax(0, 1.05fr);
  gap: 54px;
  align-items: center;
  background: #f7fbfd;
}

.seminar-image-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.seminar-image-wrap img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.seminar-copy p {
  color: var(--muted);
  font-size: 17px;
}

.seminar-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.seminar-points span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid rgba(198, 144, 63, 0.3);
  border-radius: 999px;
  color: #7b5520;
  background: #fff8ed;
  font-weight: 800;
  font-size: 14px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 36px;
}

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

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 34px rgba(16, 37, 54, 0.06);
}

.icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 26px;
  place-items: center;
  border-radius: 50%;
  color: var(--teal);
  background: var(--teal-2);
  font-weight: 900;
}

.service-card p,
.language-copy p,
.process-section p,
.proof-list p,
.contact-copy p {
  color: var(--muted);
}

.language-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.8fr);
  gap: 54px;
  align-items: center;
  background: #fff;
}

.language-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.language-tags span,
.pill-grid span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid rgba(18, 135, 127, 0.22);
  border-radius: 999px;
  color: #124e5a;
  background: #f1fbfa;
  font-weight: 700;
  font-size: 14px;
}

.language-image {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.industries-section {
  background: var(--navy);
  color: #fff;
}

.industries-section .section-kicker,
.industries-section h2 {
  color: #fff;
}

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

.pill-grid span {
  min-height: 58px;
  justify-content: center;
  border-color: rgba(255, 255, 255, 0.18);
  color: #e8f8f6;
  background: rgba(255, 255, 255, 0.08);
}

.process-section {
  background: #fff;
}

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

.steps article {
  padding: 24px;
  border-top: 4px solid var(--teal);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.steps span {
  display: block;
  margin-bottom: 26px;
  color: var(--gold);
  font-size: 15px;
  font-weight: 900;
}

.proof-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 52px;
  background: #f6fafc;
}

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

.proof-list div {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.proof-list strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 0.75fr);
  gap: 52px;
  padding: 92px clamp(22px, 6vw, 92px);
  color: #fff;
  background: linear-gradient(135deg, #0c2f45, #0d6264);
}

.contact-section .section-kicker,
.contact-section h2 {
  color: #fff;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.contact-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.email-link,
.wechat-link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  font-weight: 900;
}

.contact-form {
  display: grid;
  gap: 15px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.84);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  padding: 13px 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.54);
}

.contact-form button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  color: var(--navy);
  background: #fff;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px clamp(22px, 6vw, 92px);
  color: #496070;
  background: #fff;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding-top: 72px;
  }

  .intro-grid,
  .seminar-section,
  .language-section,
  .proof-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .site-header {
    position: static;
  }

  .brand {
    min-width: 0;
  }

  .brand small,
  .header-cta {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .main-nav {
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 2px;
  }

  .hero::after {
    background: linear-gradient(180deg, rgba(248, 252, 255, 0.94) 0%, rgba(248, 252, 255, 0.9) 62%, rgba(248, 252, 255, 0.72) 100%);
  }

  .hero-content {
    padding: 56px 22px 40px;
  }

  .hero-lede {
    font-size: 16px;
  }

  .trust-strip,
  .service-grid,
  .steps,
  .pill-grid {
    grid-template-columns: 1fr;
  }

  .section,
  .contact-section {
    padding-top: 62px;
    padding-bottom: 62px;
  }

  .language-section,
  .contact-section {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer {
    display: grid;
  }
}