:root {
  color-scheme: light;
  --charcoal: #181716;
  --ink: #24201c;
  --muted: #70675d;
  --gold: #c99522;
  --gold-dark: #9f7416;
  --gold-soft: #f7ecd0;
  --cream: #fffaf0;
  --sand: #f5efe4;
  --line: #e6dccb;
  --white: #ffffff;
  --shadow: 0 18px 48px rgba(51, 34, 7, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
    -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--white);
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 12px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(230, 220, 203, 0.85);
  backdrop-filter: blur(14px);
}

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

.brand-logo {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

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

.brand strong {
  color: var(--charcoal);
  font-size: 1.05rem;
  font-weight: 560;
  letter-spacing: 0.02em;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 400;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 430;
}

.main-nav a:hover {
  color: var(--gold-dark);
}

.header-cta,
.button,
.contact-form button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  font-weight: 560;
  cursor: pointer;
}

.header-cta {
  padding: 0 18px;
  color: var(--white);
  background: var(--charcoal);
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(18, 17, 15, 0.94) 0%, rgba(18, 17, 15, 0.74) 42%, rgba(18, 17, 15, 0.2) 100%),
    linear-gradient(0deg, rgba(0, 0, 0, 0.22), rgba(0, 0, 0, 0.02));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: 128px clamp(22px, 6vw, 80px) 72px;
  color: var(--white);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 560;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-family:
    Optima, "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
    "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(2.55rem, 4.65vw, 4.65rem);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  max-width: 690px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 1.45vw, 1.18rem);
  line-height: 1.85;
  font-weight: 380;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  padding: 0 22px;
}

.button.primary,
.contact-form button {
  color: var(--charcoal);
  background: linear-gradient(135deg, #ffe7a3, var(--gold));
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.52);
  background: rgba(255, 255, 255, 0.08);
}

.hero-stats {
  display: grid;
  max-width: 700px;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 44px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-stats div {
  padding: 20px;
  background: rgba(20, 18, 15, 0.66);
}

.hero-stats dt {
  color: var(--gold);
  font-size: 1.35rem;
  font-weight: 560;
}

.hero-stats dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}

.trust-strip a {
  min-height: 74px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 14px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-weight: 520;
  text-align: center;
}

.trust-strip .zh,
.trust-strip .en,
.service-card h3 .zh,
.service-card h3 .en,
.why-grid h3 .zh,
.why-grid h3 .en,
.guide-grid h3 .zh,
.guide-grid h3 .en {
  display: block;
}

.trust-strip .zh {
  color: var(--ink);
  font-size: 0.96rem;
  line-height: 1.2;
}

.trust-strip .en {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 380;
  line-height: 1.2;
}

.trust-strip a:hover {
  color: var(--gold-dark);
  background: var(--gold-soft);
}

.section,
.license-band,
.contact-section {
  padding: 92px clamp(22px, 6vw, 80px);
}

.intro,
.split {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(420px, 1fr);
  gap: clamp(34px, 6vw, 90px);
  align-items: start;
}

.process-section h2 {
  white-space: nowrap;
}

.section h2,
.license-band h2,
.contact-section h2 {
  margin: 0;
  color: var(--charcoal);
  font-family:
    Optima, "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
    "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(1.85rem, 2.7vw, 2.55rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.005em;
}

.heading-subtitle {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.7vw, 1.45rem);
  font-weight: 380;
  line-height: 1.35;
}

.contact-panel .heading-subtitle {
  color: var(--gold-dark);
}

.intro-copy p,
.split p,
.license-copy p,
.contact-panel p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.85;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading p:not(.section-kicker) {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.85;
}

.service-grid,
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.why-grid {
  grid-template-columns: repeat(4, 1fr);
}

.service-card,
.why-grid article {
  min-height: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 30px rgba(77, 51, 12, 0.06);
}

.guide {
  background:
    linear-gradient(180deg, rgba(255, 250, 240, 0.74), rgba(255, 255, 255, 0.96)),
    var(--white);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.guide-grid article {
  min-height: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 10px 30px rgba(77, 51, 12, 0.06);
}

.guide-grid article > span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 999px;
  color: var(--charcoal);
  background: var(--gold-soft);
  font-size: 0.82rem;
  font-weight: 560;
}

.guide-grid h3 {
  margin: 18px 0 12px;
  color: var(--charcoal);
  font-size: 1.2rem;
  font-weight: 560;
}

.service-card h3 .zh,
.why-grid h3 .zh,
.guide-grid h3 .zh {
  line-height: 1.22;
}

.service-card h3 .en,
.why-grid h3 .en,
.guide-grid h3 .en {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92em;
  font-weight: 380;
  line-height: 1.22;
}

.guide-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.76;
}

.service-card:nth-child(2n) {
  background: var(--cream);
}

.card-number {
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 560;
}

.service-card h3,
.why-grid h3 {
  margin: 16px 0 10px;
  color: var(--charcoal);
  font-size: 1.12rem;
  font-weight: 560;
}

.service-card p,
.why-grid p,
.faq-list p {
  color: var(--muted);
  line-height: 1.72;
}

.service-card ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.license-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  background: var(--charcoal);
  color: var(--white);
}

.license-band h2,
.license-band .section-kicker {
  color: var(--gold);
}

.license-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.license-grid {
  display: grid;
  gap: 16px;
}

.license-grid article {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.license-grid strong,
.license-grid span,
.license-grid small {
  display: block;
}

.license-grid strong {
  color: var(--gold);
  font-size: 1.1rem;
}

.license-grid span {
  margin-top: 10px;
  color: var(--white);
  font-weight: 520;
}

.license-grid small {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.partner-section {
  background:
    linear-gradient(180deg, rgba(255, 250, 240, 0.78), rgba(255, 255, 255, 0.98)),
    var(--white);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.partner-grid span {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--charcoal);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 24px rgba(77, 51, 12, 0.05);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
}

.partner-note {
  max-width: 980px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.process-list li {
  position: relative;
  min-height: 96px;
  padding: 20px 20px 20px 82px;
  border-bottom: 1px solid var(--line);
  counter-increment: steps;
}

.process-list li::before {
  content: counter(steps, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--charcoal);
  background: var(--gold-soft);
  font-weight: 560;
}

.process-list strong,
.process-list span {
  display: block;
}

.process-list span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.6;
}

.why {
  background: var(--sand);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.faq-list summary {
  padding: 20px 22px;
  color: var(--charcoal);
  font-weight: 520;
  cursor: pointer;
}

.faq-list p {
  margin: 0;
  padding: 0 22px 22px;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 28px;
  background:
    linear-gradient(135deg, rgba(255, 250, 240, 0.92), rgba(247, 236, 208, 0.92)),
    var(--cream);
}

.contact-panel,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-panel {
  padding: 34px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--charcoal);
  font-weight: 520;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  width: fit-content;
  padding: 0 24px;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.hidden-field {
  display: none;
}

.site-footer {
  display: grid;
  gap: 22px;
  padding: 30px clamp(22px, 6vw, 80px);
  color: rgba(255, 255, 255, 0.78);
  background: var(--charcoal);
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: max-content;
}

.site-footer img {
  width: 58px;
  height: 58px;
  object-fit: contain;
  border-radius: 8px;
  background: var(--white);
}

.site-footer p {
  max-width: 780px;
  margin: 0;
  line-height: 1.6;
}

.site-footer small {
  color: var(--gold);
  white-space: nowrap;
}

.footer-brand p {
  white-space: nowrap;
}

.footer-history {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
}

.footer-history span:first-child {
  color: var(--gold);
}

.thanks-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--cream);
}

.thanks-card {
  max-width: 620px;
  padding: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  background: var(--white);
  box-shadow: var(--shadow);
}

.thanks-card img {
  width: 118px;
  height: 118px;
  object-fit: contain;
}

.thanks-card h1 {
  margin: 8px 0 12px;
  font-size: clamp(2rem, 5vw, 3rem);
}

.thanks-card p:not(.section-kicker) {
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 1280px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1080px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

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

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

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

@media (max-width: 760px) {
  .hero {
    min-height: 720px;
  }

  .hero-content {
    padding-top: 92px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(18, 17, 15, 0.94), rgba(18, 17, 15, 0.62));
  }

  .hero-stats,
  .intro,
  .split,
  .license-band,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .process-section h2 {
    white-space: normal;
  }

  .hero-stats {
    max-width: 420px;
  }

  .trust-strip,
  .service-grid,
  .why-grid,
  .guide-grid,
  .partner-grid {
    grid-template-columns: 1fr;
  }

  .footer-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-brand {
    min-width: 0;
  }
}

@media (max-width: 520px) {
  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .section,
  .license-band,
  .partner-section,
  .contact-section {
    padding: 70px 18px;
  }

  .contact-panel,
  .contact-form,
  .service-card {
    padding: 22px;
  }
}