/* ===== Variables ===== */
:root {
  --navy: #0a1f3d;
  --navy-deep: #061428;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --teal-dark: #0f766e;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(10, 31, 61, 0.08);
  --shadow-lg: 0 12px 40px rgba(10, 31, 61, 0.12);
  --transition: 0.25s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button, input, textarea { font: inherit; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.header.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo-img {
  height: 36px;
  width: auto;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--teal); }
.lang-switch {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  border-radius: 8px;
  padding: 3px;
}
.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
}
.lang-btn.active {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(165deg, #f0f9f8 0%, #e8f4f8 40%, #f5f7fa 100%);
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 20% 20%, rgba(13, 148, 136, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 85% 75%, rgba(10, 31, 61, 0.06), transparent),
    radial-gradient(ellipse 50% 35% at 50% 100%, rgba(13, 148, 136, 0.08), transparent);
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
  color: var(--navy);
  padding: 80px 24px;
}
.hero-logo {
  height: 56px;
  width: auto;
  max-width: 320px;
  margin: 0 auto 28px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.tagline {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-weight: 300;
  color: var(--gray-600);
  margin-bottom: 40px;
  letter-spacing: 0.04em;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--teal);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--teal-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid rgba(10, 31, 61, 0.25);
}
.btn-outline:hover {
  background: rgba(10, 31, 61, 0.05);
  border-color: var(--navy);
}

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.section-desc {
  margin-top: 12px;
  color: var(--gray-600);
  font-size: 1.05rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== About ===== */
.about {
  background: #f7fafb;
}
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-text p {
  color: var(--gray-600);
  margin-bottom: 16px;
  font-size: 1.05rem;
}
.about-stats {
  display: grid;
  gap: 20px;
}
.stat {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--teal);
}
.stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-top: 4px;
}

/* ===== Business ===== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.business-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 36px 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.business-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.business-card.featured {
  background: linear-gradient(160deg, #0d7377 0%, #0a5c5f 100%);
  color: var(--white);
  border-color: transparent;
}
.business-card.featured h3,
.business-card.featured .card-list li {
  color: var(--white);
}
.business-card.featured p {
  color: rgba(255,255,255,0.8);
}
.business-card.featured .card-icon {
  background: rgba(13, 148, 136, 0.25);
  color: var(--teal-light);
}
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(13, 148, 136, 0.1);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.card-icon svg { width: 28px; height: 28px; }
.business-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.business-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}
.card-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card-list li {
  font-size: 0.9rem;
  color: var(--gray-600);
  padding-left: 18px;
  position: relative;
}
.card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}
.business-card.featured .card-list li::before {
  background: var(--teal-light);
}

/* ===== Team ===== */
.team {
  background: linear-gradient(180deg, #f0f7f6 0%, #f8fafc 100%);
  color: var(--gray-800);
}
.team .section-label { color: var(--teal); }
.team .section-header h2 { color: var(--navy); }
.team .section-desc { color: var(--gray-600); }
.team-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px 24px;
}
.team-card {
  text-align: center;
  width: 140px;
  flex-shrink: 0;
}
.avatar-wrap {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--teal);
  margin: 0 auto 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  transition: var(--transition);
  background: #1a334d;
}
.avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}
.team-card:hover .avatar-wrap {
  transform: scale(1.06);
  border-color: var(--teal-light);
  box-shadow: 0 12px 32px rgba(13, 148, 136, 0.35);
}
.team-card h4 {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  line-height: 1.3;
}

@media (max-width: 900px) {
  .team-grid {
    gap: 24px 16px;
  }
  .team-card {
    width: 120px;
  }
}
@media (max-width: 520px) {
  .team-card {
    width: 110px;
  }
  .avatar-wrap {
    width: 96px;
    height: 96px;
  }
}


.team-photo-wrap {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.team-photo {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}
.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(13, 148, 136, 0.1);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}
.contact-item p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.5;
}
.contact-item a {
  color: var(--teal);
  transition: color var(--transition);
}
.contact-item a:hover { color: var(--teal-dark); }

.contact-form {
  background: var(--gray-50);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--gray-800);
  transition: border-color var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form .btn { align-self: flex-start; }

/* ===== Footer ===== */
.footer {
  background: #0f2744;
  color: rgba(255,255,255,0.75);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.footer-logo {
  height: 32px;
  width: auto;
  margin: 0 auto 12px;
  opacity: 0.95;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.5;
}
.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--teal-light); }
.copyright {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  margin-top: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid,
  .business-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .business-grid { gap: 20px; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .menu-toggle { display: flex; }
  .lang-switch { margin-left: auto; margin-right: 12px; }
  .section { padding: 72px 0; }
  .hero-content { padding: 60px 24px; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}

/* ===== Business card as link ===== */
a.business-card {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
.card-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--teal);
}
.business-card.featured .card-link {
  color: var(--teal-light);
}
a.business-card:hover .card-link {
  text-decoration: underline;
}

/* ===== Sub-page Hero ===== */
.page-hero {
  background: linear-gradient(165deg, #e8f4f3 0%, #eef2f6 50%, #f5f7fa 100%);
  color: var(--navy);
  padding: 140px 0 72px;
  position: relative;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 30% 0%, rgba(13, 148, 136, 0.1), transparent);
  pointer-events: none;
}
.page-hero .container { position: relative; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--gray-400);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--gray-600);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--teal); }
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.page-hero-desc {
  font-size: 1.1rem;
  color: var(--gray-600);
  max-width: 560px;
  font-weight: 300;
}

/* ===== Detail layout ===== */
.detail-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}
.detail-main h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}
.detail-main p {
  color: var(--gray-600);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.side-card {
  background: var(--gray-50);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--gray-200);
}
.side-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}
.side-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.side-list li {
  font-size: 0.95rem;
  color: var(--gray-600);
  padding-left: 18px;
  position: relative;
}
.side-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* ===== Service cards ===== */
.section-alt {
  background: var(--gray-50);
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-2px);
}
.service-num {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.service-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* ===== Process steps ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  text-align: center;
  padding: 24px 16px;
}
.process-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.process-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* ===== CTA section ===== */
.cta-section {
  background: linear-gradient(165deg, #e6f5f3 0%, #edf2f7 100%);
  color: var(--navy);
  text-align: center;
}
.cta-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--navy);
}
.cta-inner p {
  color: var(--gray-600);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

@media (max-width: 900px) {
  .service-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}