:root {
  --primary: #E67E22;
  --primary-dark: #D35400;
  --primary-light: #F5B041;
  --text-dark: #2D3436;
  --text-light: #5f6368;
  --bg-muted: #f8f9fb;
  --radius: 18px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  color: var(--text-dark);
  background: linear-gradient(135deg, #ffffff 0%, #f4f6fb 100%);
  line-height: 1.6;
}

/* Shared header utilities to mirror main site */
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.backdrop-blur-xl { backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }
.shadow-lg { box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08); }
.sticky { position: sticky; }
.top-0 { top: 0; }
.z-50 { z-index: 50; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; }
.border-gray-100\/50 { border-color: rgba(243, 244, 246, 0.5); }
.max-w-7xl { max-width: 80rem; }
.max-w-6xl { max-width: 72rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.p-2 { padding: 0.5rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.-mr-2 { margin-right: -0.5rem; }
.mt-20 { margin-top: 5rem; }
.mt-8 { margin-top: 2rem; }
.mr-4 { margin-right: 1rem; }
.my-1\.5 { margin-top: 0.375rem; margin-bottom: 0.375rem; }
.mb-4 { margin-bottom: 1rem; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-col { flex-direction: column; }
.flex-1 { flex: 1 1 0%; }
.hidden { display: none !important; }
.grid { display: grid; }
.gap-8 { gap: 2rem; }
.space-x-12 > * + * { margin-left: 3rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.text-gray-800 { color: #1f2937; }
.text-gray-400 { color: #9ca3af; }
.text-white\/95 { color: rgba(255, 255, 255, 0.95); }
.text-white { color: #ffffff; }
.bg-gray-800 { background-color: #1f2937; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-lg { font-size: 1.125rem; line-height: 1.6; }
.text-xl { font-size: 1.25rem; line-height: 1.5; }
.text-3xl { font-size: 1.875rem; line-height: 1.3; }
.tracking-tight { letter-spacing: -0.02em; }
.h-14 { height: 3.5rem; }
.h-0\.5 { height: 0.125rem; }
.h-4 { height: 1rem; }
.h-6 { height: 1.5rem; }
.w-7 { width: 1.75rem; }
.w-4 { width: 1rem; }
.w-6 { width: 1.5rem; }
.text-center { text-align: center; }
.pt-8 { padding-top: 2rem; }
.border-t { border-top-width: 1px; border-top-style: solid; }
.border-gray-700 { border-color: #374151; }
.rounded { border-radius: 0.25rem; }
.block { display: block; }
.absolute { position: absolute; }
.right-3 { right: 0.75rem; }
.top-3 { top: 0.75rem; }
.p-3 { padding: 0.75rem; }
.hover\:text-white:hover { color: #fff; }
.hover\:text-primary:hover { color: var(--primary); }
.transition-colors { transition: color 0.2s ease; }
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-link {
  position: relative;
  padding: 0.5rem 0;
  font-weight: 600;
  color: var(--text-dark);
  transition: color 0.3s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  transition: width 0.25s ease;
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--primary); }
.nav-link:hover::after,
.nav-link:focus-visible::after { width: 100%; }

@media (min-width: 768px) {
  .md\:flex { display: flex !important; }
  .md\:hidden { display: none !important; }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:flex-row { flex-direction: row; }
  .md\:mb-0 { margin-bottom: 0 !important; }
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(230, 126, 34, 0.4);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.content-wrapper {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(230, 126, 34, 0.1);
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-mark {
  width: 58px;
  height: 58px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tagline {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 0.15em;
}

.site-nav {
  display: flex;
  gap: 1.75rem;
  font-weight: 600;
}

.site-nav a {
  color: var(--text-dark);
  position: relative;
  padding: 0.35rem 0;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  transition: width 0.25s ease;
}

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

.menu-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0.25rem;
}

.menu-line {
  width: 26px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 999px;
  display: block;
  margin: 5px 0;
  transition: transform 0.2s ease;
}

.hero {
  background-image: linear-gradient(125deg, rgba(45, 52, 54, 0.9), rgba(211, 84, 0, 0.85)),
    url('../carslaobao4.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 110px 0 90px;
}

.hero-inner {
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  margin: 0;
}

.subtitle {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0.75rem 0 1rem;
  color: #ffe7d3;
}

.lead {
  max-width: 700px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 1.8rem;
  display: flex;
  justify-content: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(230, 126, 34, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(230, 126, 34, 0.45);
}

.instructions-flow {
  padding: 80px 0 60px;
  background: #fff;
}

.instructions-flow h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section-lead {
  color: var(--text-light);
  margin-top: 0;
  max-width: 720px;
}

.instruction-block {
  margin-top: 2.5rem;
  display: grid;
  gap: 2rem;
  background: linear-gradient(135deg, rgba(230, 126, 34, 0.05), rgba(255, 255, 255, 0.95));
  border-radius: calc(var(--radius) + 6px);
  padding: 2rem;
  box-shadow: 0 25px 65px rgba(45, 52, 54, 0.08);
}

.instruction-media {
  text-align: center;
}

.instruction-media a {
  display: inline-block;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.instruction-media img {
  border-radius: var(--radius);
  transition: transform 0.3s ease;
}

.instruction-media a:hover img {
  transform: scale(1.02);
}

.instruction-media figcaption {
  margin-top: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
}

.instruction-content {
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.block-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  margin-top: 0;
}

.steps-list {
  padding-left: 1.25rem;
  font-size: 1.03rem;
}

.steps-list > li {
  margin-bottom: 1rem;
}

.sub-steps {
  margin-top: 0.45rem;
  margin-bottom: 0.6rem;
  padding-left: 1.25rem;
  color: var(--text-light);
}

.sub-steps li {
  margin-bottom: 0.4rem;
}

.steps-list strong {
  color: var(--primary-dark);
}

.final-note-section {
  background: #fff;
  padding: 80px 0;
}

.final-note-card {
  background: #fff6eb;
  border: 1px solid rgba(230, 126, 34, 0.2);
  border-left-width: 6px;
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: 0 20px 45px rgba(230, 126, 34, 0.15);
}

.final-note-card h3 {
  margin-top: 0;
  font-size: 1.6rem;
  font-family: 'Montserrat', sans-serif;
}

.final-note-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--text-dark);
}

.closing {
  background: transparent;
  padding: 60px 0 90px;
  text-align: center;
}

.closing-text p {
  margin: 0.4rem 0;
  font-size: 1.2rem;
  font-weight: 600;
}

.site-footer {
  background: #1f2933;
  color: #e4e7eb;
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.site-footer h4,
.site-footer h5 {
  font-family: 'Montserrat', sans-serif;
  margin-bottom: 0.75rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: #c8ced6;
}

.site-footer a {
  color: inherit;
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  text-align: center;
  margin-top: 2.5rem;
  color: #9aa3b1;
  font-size: 0.95rem;
}

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 12px 25px rgba(230, 126, 34, 0.45);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 30;
}

.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: inline-flex;
    flex-direction: column;
    margin-left: auto;
  }

  .site-nav {
    flex-direction: column;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
  }

  .site-nav.open {
    max-height: 300px;
    padding-top: 0.75rem;
  }

  .site-nav a {
    padding: 0.4rem 0;
  }
}

@media (min-width: 768px) {
  .instruction-block {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}