/* ====== 三亚日本企业服务中心 ====== */
:root {
  --primary: #d42b2b;
  --primary-dark: #b01e1e;
  --primary-light: #fce8e8;
  --accent: #1a73e8;
  --accent-light: #e8f0fe;
  --bg: #ffffff;
  --bg-alt: #f8f9fa;
  --bg-dark: #1a1a2e;
  --text: #1a1a2e;
  --text-secondary: #5f6368;
  --text-light: #9aa0a6;
  --border: #e8eaed;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

[lang="ja"] body,
html[data-lang="jp"] body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Helvetica Neue", Arial, sans-serif;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ====== Header ====== */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}

.logo-icon { font-size: 28px; }

.logo-text {
  display: flex; flex-direction: column;
  line-height: 1.2;
}

.logo-zh { font-size: 16px; font-weight: 700; color: var(--primary); }
.logo-jp { font-size: 11px; color: var(--text-secondary); letter-spacing: 0.5px; }

.nav {
  display: flex; gap: 8px;
}

.nav a {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 20px;
  transition: var(--transition);
  font-weight: 500;
}

.nav a:hover { color: var(--primary); background: var(--primary-light); }

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

.lang-switch {
  display: flex;
  background: var(--bg-alt);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 5px 14px;
  border: none; background: transparent;
  font-size: 13px; cursor: pointer;
  border-radius: 18px;
  color: var(--text-secondary);
  transition: var(--transition);
  font-weight: 500;
}

.lang-btn.active {
  background: var(--primary);
  color: white;
}

.lang-btn:not(.active):hover { color: var(--primary); }

.hamburger { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text); }

/* ====== Hero ====== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #fff5f5 0%, #fff 50%, #f0f4ff 100%);
  text-align: center;
}

.hero-content { max-width: 800px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-light);
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 48px; }

.hero-stats {
  display: flex; justify-content: center; gap: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.stat-item { text-align: center; }

.stat-num {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-item span:last-child { font-size: 13px; color: var(--text-secondary); }

/* ====== Buttons ====== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  line-height: 1.4;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(212,43,43,0.3); }

.btn-secondary { background: white; color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 6px;
}
.btn-outline:hover { background: var(--accent-light); }

.btn-sm { padding: 6px 16px; font-size: 13px; }
.btn-block { width: 100%; text-align: center; }

/* ====== Sections ====== */
.section { padding: 80px 0; }

.section:nth-child(even) { background: var(--bg-alt); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ====== About Grid ====== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.about-card {
  text-align: center;
  padding: 40px 24px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.about-icon { font-size: 48px; margin-bottom: 16px; }

.about-card h3 { font-size: 20px; margin-bottom: 12px; }

.about-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

/* ====== Service Grid ====== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: white;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.service-card-icon { font-size: 36px; margin-bottom: 16px; }

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}

.service-card ul { list-style: none; padding: 0; }

.service-card li {
  padding: 6px 0 6px 20px;
  position: relative;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.service-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* ====== Emergency ====== */
.emergency-section { background: linear-gradient(135deg, #ffebee, #fff5f5) !important; }

.emergency-alert {
  display: flex;
  align-items: center;
  gap: 20px;
  background: white;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 28px 36px;
  margin-bottom: 32px;
}

.emergency-icon { font-size: 48px; }

.emergency-alert h3 { font-size: 20px; color: var(--primary); margin-bottom: 4px; }

.emergency-alert p { color: var(--text-secondary); font-size: 14px; }

.emergency-phone {
  display: inline-block;
  margin-top: 8px;
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 1px;
}

.emergency-phone:hover { text-decoration: underline; }

.emergency-card {
  border-left: 4px solid var(--primary);
  background: white;
}

/* ====== Features ====== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.feature-item {
  text-align: center;
  padding: 32px 16px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon { font-size: 40px; margin-bottom: 16px; }

.feature-item h3 { font-size: 16px; margin-bottom: 8px; }

.feature-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* ====== Contact ====== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-form-card {
  background: white;
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition);
  font-family: inherit;
  background: white;
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(212,43,43,0.1);
}

.form-success {
  text-align: center;
  padding: 60px 20px;
}

.success-icon { font-size: 60px; margin-bottom: 16px; }

.form-success h3 { font-size: 24px; margin-bottom: 8px; color: var(--primary); }

.form-success p { color: var(--text-secondary); }

/* Contact Info */
.contact-info { display: flex; flex-direction: column; gap: 20px; }

.info-item {
  display: flex; align-items: center; gap: 16px;
  padding: 20px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.info-item:hover { border-color: var(--primary); }

.info-icon { font-size: 28px; }

.info-item h3 { font-size: 14px; font-weight: 600; margin-bottom: 2px; }

.info-item p { font-size: 14px; color: var(--text-secondary); }

/* ====== Footer ====== */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 48px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand h3 { font-size: 18px; margin-bottom: 8px; }

.footer-brand p { color: rgba(255,255,255,0.6); font-size: 14px; }

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.8);
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
  transition: var(--transition);
}

.footer-links a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 16px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ====== Mobile ====== */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: white;
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
  }
  .nav.open { display: flex; }

  .hamburger { display: block; }

  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-actions { flex-direction: column; align-items: center; }

  .about-grid,
  .features-grid { grid-template-columns: 1fr; }

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

  .contact-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 24px; }

  .section { padding: 48px 0; }
  .section-header h2 { font-size: 24px; }

  .emergency-phone { font-size: 22px; }

  .header-actions .btn-outline { display: none; }
}