* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: #111827;
  background-color: #ffffff;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08);
  transition: box-shadow 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  gap: 16px;
}

.logo {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, #0f4c81 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub {
  font-size: 12px;
  color: #6b7280;
}

.site-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 20px;
  font-size: 14px;
}

.site-nav a {
  padding: 6px 0;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #0f4c81 0%, #2563eb 100%);
  border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-nav a:hover::after {
  width: 100%;
}

.site-nav a:focus-visible,
.header-phone:focus-visible {
  outline: 2px solid #facc15;
  outline-offset: 2px;
}

.header-contact {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: 13px;
  white-space: nowrap;
}

.header-phone-label {
  color: #6b7280;
}

.header-phone {
  font-weight: 700;
  color: #dc2626;
  font-size: 14px;
  transition: color 0.2s ease;
}

.header-phone:hover {
  color: #b91c1c;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  padding: 4px 6px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: #2563eb;
  background-color: #f9fafb;
}

.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 999px;
  background-color: #111827;
}

.hero {
  background: linear-gradient(135deg, #0f4c81 0%, #2563eb 45%, #0ea5e9 100%);
  color: #ffffff;
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.3fr);
  gap: 32px;
  align-items: stretch;
}

.hero-text h1 {
  font-size: 32px;
  line-height: 1.3;
  margin: 0 0 20px;
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.95;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.hero-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
}

.hero-highlights li {
  position: relative;
  padding-left: 20px;
}

.hero-highlights li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #facc15;
  font-weight: 700;
  font-size: 16px;
}

.hero-card {
  background-color: #ffffff;
  color: #111827;
  border-radius: 16px;
  padding: 28px 24px 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.2), 0 6px 16px rgba(0, 0, 0, 0.12);
}

.hero-card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.hero-card p {
  margin: 0 0 16px;
  font-size: 13px;
  color: #4b5563;
}

.hero-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-form label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: #374151;
  gap: 4px;
}

.hero-form input,
.hero-form select,
.contact-form input,
.contact-form textarea {
  border-radius: 8px;
  border: 1px solid #d1d5db;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
  background-color: #ffffff;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.hero-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23374151' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.hero-form input:focus,
.hero-form select:focus,
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

.hero-form input:hover,
.hero-form select:hover,
.contact-form input:hover,
.contact-form textarea:hover {
  border-color: #9ca3af;
}

.form-tip {
  margin-top: 6px;
  font-size: 12px;
  color: #6b7280;
}

.form-message {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.5;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-message-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.form-message-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

.btn-loading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-loading::after {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}

.guide-tip {
  margin-top: 20px;
  padding: 16px 20px;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-left: 4px solid #2563eb;
  border-radius: 8px;
  font-size: 13px;
  color: #1e40af;
  line-height: 1.6;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, #facc15 0%, #fbbf24 100%);
  color: #1f2933;
  box-shadow: 0 4px 12px rgba(250, 204, 21, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  box-shadow: 0 6px 20px rgba(250, 204, 21, 0.4);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-block {
  width: 100%;
}

.section {
  padding: 60px 0;
}

.section-alt {
  background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 700;
  color: #111827;
  line-height: 1.3;
}

.section-desc {
  margin: 0 0 32px;
  font-size: 15px;
  color: #4b5563;
  line-height: 1.7;
  max-width: 800px;
}

.service-methods {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.method-card {
  background: linear-gradient(135deg, #ffffff 0%, #f9fafb 100%);
  border-radius: 16px;
  padding: 24px;
  border: 2px solid #e5e7eb;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.method-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #0f4c81 0%, #2563eb 100%);
}

.method-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  border-color: #c7d2fe;
}

.method-card h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 600;
  color: #111827;
}

.method-card p {
  margin: 0 0 16px;
  font-size: 14px;
  color: #4b5563;
  line-height: 1.6;
}

.method-card ul {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: #4b5563;
  line-height: 1.8;
}

.method-card ul li {
  margin-bottom: 6px;
}

.method-card ul li::marker {
  color: #2563eb;
}

.grid {
  display: grid;
  gap: 20px;
}

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

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

.card {
  background-color: #ffffff;
  border-radius: 16px;
  padding: 24px 20px 20px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #0f4c81 0%, #2563eb 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  border-color: #c7d2fe;
}

.card:hover::before {
  transform: scaleX(1);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: #111827;
  line-height: 1.4;
}

.card p {
  margin: 0 0 10px;
  font-size: 13px;
  color: #4b5563;
}

.card ul {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: #4b5563;
  line-height: 1.8;
}

.card ul li {
  margin-bottom: 6px;
  position: relative;
}

.card ul li::marker {
  color: #2563eb;
}

.area-cities {
  display: grid;
  gap: 24px;
  margin-bottom: 24px;
}

.city-group {
  background-color: #ffffff;
  border-radius: 12px;
  padding: 20px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.city-group h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  color: #111827;
  padding-bottom: 12px;
  border-bottom: 2px solid #e5e7eb;
}

.city-count {
  font-size: 14px;
  font-weight: 500;
  color: #2563eb;
  margin-left: 8px;
}

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 0;
}

.area-tags span {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 20px;
  border: 1px solid #c7d2fe;
  background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
  color: #1d4ed8;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: default;
}

.area-tags span:hover {
  background: linear-gradient(135deg, #c7d2fe 0%, #e0e7ff 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(29, 78, 216, 0.15);
}

.area-note {
  margin-top: 24px;
  padding: 20px 24px;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 12px;
  border-left: 4px solid #2563eb;
  font-size: 14px;
  color: #1e40af;
  line-height: 1.8;
}

.area-note p {
  margin: 8px 0;
}

.area-note p:first-child {
  margin-top: 0;
}

.area-note strong {
  color: #1e3a8a;
  font-weight: 600;
}

.process-steps {
  margin: 0;
  padding-left: 0;
  font-size: 14px;
  display: grid;
  gap: 20px;
  counter-reset: step-counter;
  list-style: none;
}

.process-steps li {
  position: relative;
  padding-left: 50px;
  padding-top: 8px;
}

.process-steps li::before {
  counter-increment: step-counter;
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #0f4c81 0%, #2563eb 100%);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(15, 76, 129, 0.3);
}

.process-steps h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: #111827;
}

.process-steps p {
  margin: 0;
  font-size: 14px;
  color: #4b5563;
  line-height: 1.6;
}

.faq-list {
  display: grid;
  gap: 8px;
}

.faq-list details {
  background-color: #ffffff;
  border-radius: 12px;
  padding: 16px 18px;
  border: 1px solid #e5e7eb;
  transition: all 0.2s ease;
}

.faq-list details:hover {
  border-color: #c7d2fe;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.faq-list details[open] {
  border-color: #2563eb;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.faq-list summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: #111827;
  padding: 4px 0;
  position: relative;
  padding-right: 24px;
}

.faq-list summary::after {
  content: "▼";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: #6b7280;
  transition: transform 0.2s ease;
}

.faq-list details[open] summary::after {
  transform: translateY(-50%) rotate(180deg);
}

.faq-list p {
  margin: 8px 0 0;
  font-size: 13px;
  color: #4b5563;
}

.contact-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
}

.contact-info {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
  font-size: 14px;
  color: #374151;
}

.contact-info li {
  margin-bottom: 12px;
  padding: 8px 0;
  border-bottom: 1px solid #e5e7eb;
}

.contact-info li:last-child {
  border-bottom: none;
}

.contact-info strong {
  color: #111827;
  display: inline-block;
  min-width: 80px;
}

.contact-info a {
  color: #2563eb;
  font-weight: 600;
  transition: color 0.2s ease;
}

.contact-info a:hover {
  color: #1d4ed8;
  text-decoration: none;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
}

.site-footer {
  background: linear-gradient(135deg, #0b1120 0%, #1e293b 100%);
  color: #9ca3af;
  padding: 32px 0 24px;
  font-size: 13px;
  margin-top: 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}

.footer-inner p {
  margin: 0;
  font-size: 13px;
  color: #9ca3af;
}

.footer-inner p:first-child {
  font-size: 14px;
  font-weight: 600;
  color: #d1d5db;
  margin-bottom: 4px;
}

.footer-meta {
  font-size: 12px;
  color: #6b7280;
  line-height: 1.6;
}

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .header-inner {
    padding-inline: 12px;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: #ffffff;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 16px 12px;
    gap: 4px;
  }

  .header-contact {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 40px 0 48px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-text h1 {
    font-size: 24px;
  }

  .hero-subtitle {
    font-size: 13px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .service-methods {
    grid-template-columns: minmax(0, 1fr);
    margin-bottom: 32px;
  }

  .section {
    padding: 40px 0;
  }

  .section h2 {
    font-size: 24px;
  }

  .mobile-call-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 12px 16px;
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(135deg, #0f4c81 0%, #2563eb 100%);
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.35), 0 -2px 8px rgba(0, 0, 0, 0.2);
    z-index: 30;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .mobile-call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #facc15 0%, #fbbf24 100%);
    color: #1f2933;
    font-weight: 700;
    font-size: 16px;
    padding: 14px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(250, 204, 21, 0.4), 0 2px 8px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
  }

  .mobile-call-btn::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
  }

  .mobile-call-btn:active::before {
    width: 300px;
    height: 300px;
  }

  .mobile-call-btn:active {
    transform: scale(0.98);
  }

  .call-icon {
    font-size: 22px;
    line-height: 1;
    animation: pulse 2s ease-in-out infinite;
  }

  .call-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.3;
  }

  .call-label {
    font-size: 13px;
    opacity: 0.9;
    margin-bottom: 2px;
  }

  .call-number {
    font-size: 18px;
    letter-spacing: 0.5px;
  }
}

.mobile-call-bar {
  display: none;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

@media (max-width: 480px) {
  .hero-card {
    padding: 16px 14px 14px;
  }

  .card {
    padding: 14px 14px 12px;
  }

  .contact-grid {
    gap: 16px;
  }
}