:root {
  --bg: #0b1118;
  --bg-soft: #101824;
  --surface: rgba(16, 24, 36, 0.72);
  --surface-strong: rgba(12, 18, 27, 0.92);
  --surface-light: rgba(255, 255, 255, 0.06);
  --card: #131c29;
  --line: rgba(255, 255, 255, 0.12);
  --text: #edf2f7;
  --muted: #aeb8c5;
  --gold: #d7b37a;
  --gold-deep: #9f7a44;
  --teal: #65d0c2;
  --teal-deep: #2f7d75;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100% - 32px));
  --font-sans: "Source Han Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-display: "Avenir Next", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at 15% 20%, rgba(101, 208, 194, 0.12), transparent 30%),
    radial-gradient(circle at 85% 15%, rgba(215, 179, 122, 0.16), transparent 28%),
    linear-gradient(180deg, #0b1118 0%, #0d1420 32%, #111a27 100%);
  color: var(--text);
  line-height: 1.7;
}

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

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

button {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 999;
  padding: 12px 16px;
  border-radius: 999px;
  background: #fff;
  color: #111;
}

.skip-link:focus {
  top: 16px;
}

.top-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: var(--container);
  margin: 18px auto 0;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  backdrop-filter: blur(18px);
}

.top-banner p,
.site-footer p {
  margin: 0;
}

.mini-cta,
.footer-copy,
.text-button {
  border: 0;
  color: var(--gold);
  background: transparent;
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: var(--container);
  margin: 18px auto 0;
  padding: 18px 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(9, 14, 20, 0.68);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(215, 179, 122, 0.2), rgba(101, 208, 194, 0.18));
  border: 1px solid rgba(215, 179, 122, 0.28);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-name,
.brand-subtitle {
  margin: 0;
}

.brand-name {
  font-weight: 700;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.header-cta,
.primary-button,
.secondary-button,
.floating-cta button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.header-cta,
.primary-button,
.floating-cta button {
  background: linear-gradient(135deg, var(--gold), #f4d9aa);
  color: #15130f;
  box-shadow: 0 14px 36px rgba(215, 179, 122, 0.24);
}

.secondary-button {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.header-cta:hover,
.primary-button:hover,
.secondary-button:hover,
.floating-cta button:hover,
.header-cta:focus-visible,
.primary-button:focus-visible,
.secondary-button:focus-visible,
.floating-cta button:focus-visible {
  transform: translateY(-2px);
}

.hero-section {
  position: relative;
  width: var(--container);
  margin: 30px auto 0;
  padding: 42px 0 12px;
}

[id] {
  scroll-margin-top: 132px;
}

.hero-grid,
.about-layout,
.contact-shell {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
}

.hero-copy,
.hero-showcase,
.about-panel,
.contact-card,
.section-cta,
.faq-list,
.process-step,
.advantage-card,
.service-card,
.case-card,
.detail-card,
.contact-shell {
  position: relative;
}

.hero-copy,
.hero-showcase,
.about-panel,
.contact-card,
.faq-list,
.section-cta {
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: clamp(28px, 4vw, 54px);
  border-radius: var(--radius-xl);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5.8vw, 4.9rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  max-width: 13ch;
}

h3 {
  font-size: 1.32rem;
}

.hero-subtitle,
.contact-subtitle {
  margin: 24px 0 0;
  max-width: 38rem;
  color: #d4dbe3;
  font-size: 1.08rem;
}

.hero-points,
.contact-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points span,
.contact-points li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #dce4ec;
}

.hero-cta-card {
  margin-top: 32px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(215, 179, 122, 0.18), rgba(215, 179, 122, 0.05)),
    rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(215, 179, 122, 0.28);
}

.cta-label,
.wechat-line,
.section-cta p,
.inline-cta span,
.contact-note {
  margin: 0;
}

.wechat-line {
  margin-top: 8px;
  font-size: 1.28rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}

.hero-showcase {
  border-radius: var(--radius-xl);
  padding: clamp(18px, 3vw, 28px);
  overflow: hidden;
}

.hero-showcase::before,
.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 25%, rgba(101, 208, 194, 0.18), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(215, 179, 122, 0.18), transparent 22%);
  pointer-events: none;
}

.hero-visual {
  position: relative;
  min-height: 100%;
}

.hero-photo-stack {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 16px;
}

.photo-card,
.stat-card {
  overflow: hidden;
  border-radius: 26px;
}

.photo-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-card-primary {
  grid-row: span 2;
  min-height: 470px;
}

.photo-card-accent {
  min-height: 240px;
}

.photo-caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 14px;
  border-radius: 18px;
  background: rgba(7, 10, 15, 0.72);
  backdrop-filter: blur(12px);
}

.photo-caption span,
.case-copy span,
.detail-card span {
  display: block;
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.photo-caption strong {
  display: block;
  margin-top: 6px;
}

.stat-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 214px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-card p {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--teal);
}

.stat-card span {
  margin-top: 10px;
  color: var(--muted);
}

.stat-card-dark p {
  color: var(--gold);
}

.trust-strip,
.section {
  width: var(--container);
  margin: 26px auto 0;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.trust-strip div {
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.trust-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.45rem;
  color: var(--gold);
}

.trust-strip span,
.service-card p,
.advantage-card p,
.process-step p,
.faq-list p,
.case-copy h3,
.detail-card p,
.about-copy p {
  color: var(--muted);
}

.section {
  padding: 76px 0 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-heading .eyebrow {
  color: var(--gold);
}

.about-copy,
.about-panel,
.services-grid,
.advantages-grid,
.process-timeline,
.cases-grid {
  display: grid;
  gap: 18px;
}

.about-copy {
  align-content: start;
}

.about-copy p {
  margin: 0;
  max-width: 62ch;
}

.inline-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(215, 179, 122, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

.about-panel {
  grid-template-columns: repeat(3, 1fr);
  padding: 18px;
  border-radius: var(--radius-xl);
}

.detail-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.detail-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.15rem;
}

.detail-card p {
  margin: 12px 0 0;
}

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

.service-card,
.advantage-card,
.process-step,
.case-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.service-visual {
  position: relative;
  min-height: 176px;
  margin-bottom: 20px;
  padding: 18px;
  border-radius: 22px;
  overflow: hidden;
  isolation: isolate;
}

.service-visual::before,
.service-visual::after {
  content: "";
  position: absolute;
  inset: auto auto -20px -20px;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  filter: blur(8px);
}

.service-visual::after {
  inset: -50px -40px auto auto;
  width: 160px;
  height: 160px;
}

.service-visual span,
.service-visual strong {
  position: relative;
  z-index: 1;
}

.service-visual span {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  font-weight: 700;
}

.service-visual strong {
  display: block;
  margin-top: 72px;
  font-size: 1.5rem;
}

.tone-1 {
  background: linear-gradient(135deg, rgba(37, 110, 102, 0.9), rgba(16, 31, 55, 0.9));
}

.tone-2 {
  background: linear-gradient(135deg, rgba(151, 94, 36, 0.92), rgba(52, 23, 43, 0.88));
}

.tone-3 {
  background: linear-gradient(135deg, rgba(46, 74, 136, 0.92), rgba(12, 27, 40, 0.88));
}

.tone-4 {
  background: linear-gradient(135deg, rgba(34, 59, 82, 0.94), rgba(56, 95, 84, 0.88));
}

.service-card h3,
.advantage-card h3,
.process-step h3,
.case-copy h3 {
  margin-bottom: 12px;
}

.section-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 22px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
}

.advantages-grid {
  grid-template-columns: repeat(6, 1fr);
}

.advantage-card:nth-child(1),
.advantage-card:nth-child(2) {
  grid-column: span 3;
}

.advantage-card:nth-child(3),
.advantage-card:nth-child(4),
.advantage-card:nth-child(5) {
  grid-column: span 2;
}

.advantage-index {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.14em;
}

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

.process-step {
  padding-top: 28px;
}

.process-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(215, 179, 122, 0.12);
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

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

.case-card {
  padding: 0;
}

.case-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-copy {
  padding: 20px 20px 22px;
}

.faq-list {
  padding: 14px;
  border-radius: var(--radius-xl);
}

.faq-list details {
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.faq-list details + details {
  margin-top: 12px;
}

.faq-list summary {
  position: relative;
  padding: 20px 56px 20px 20px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-size: 1.4rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  margin: 0;
  padding: 0 20px 20px;
}

.contact-section {
  position: relative;
  padding-bottom: 110px;
}

.contact-shell {
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
    rgba(11, 17, 24, 0.88);
  overflow: hidden;
}

.contact-copy {
  position: relative;
  z-index: 1;
}

.contact-card {
  z-index: 1;
  align-self: center;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.contact-card p:first-child {
  margin-top: 0;
  font-size: 1.12rem;
}

.contact-card .primary-button {
  display: inline-flex;
  margin-top: 18px;
}

.contact-note {
  margin-top: 18px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: var(--container);
  margin: 0 auto;
  padding: 24px 0 48px;
  color: var(--muted);
}

.floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 45;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(9, 14, 20, 0.86);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.floating-cta strong,
.floating-cta span {
  display: block;
}

.floating-cta span {
  color: var(--gold);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 60;
  transform: translate(-50%, 32px);
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: #121212;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.motion-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(101, 208, 194, 0.76);
  outline-offset: 3px;
}

@media (max-width: 1100px) {
  .site-header,
  .top-banner {
    border-radius: 28px;
  }

  .site-header {
    top: 10px;
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .hero-grid,
  .about-layout,
  .contact-shell {
    grid-template-columns: 1fr;
  }

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

  .process-timeline,
  .cases-grid,
  .trust-strip {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .advantage-card:nth-child(n) {
    grid-column: span 1;
  }
}

@media (max-width: 760px) {
  .top-banner,
  .site-footer,
  .section-cta,
  .inline-cta,
  .site-header {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero-section {
    padding-top: 20px;
  }

  .hero-copy,
  .hero-showcase,
  .contact-shell,
  .faq-list {
    border-radius: 24px;
  }

  .hero-photo-stack,
  .services-grid,
  .process-timeline,
  .cases-grid,
  .trust-strip,
  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .photo-card-primary {
    min-height: 360px;
  }

  .photo-card-accent,
  .stat-card {
    min-height: 180px;
  }

  .floating-cta {
    left: 12px;
    right: 12px;
    bottom: 12px;
    justify-content: space-between;
  }

  .floating-cta div {
    min-width: 0;
  }

  .floating-cta button {
    padding-inline: 18px;
  }

  .contact-section {
    padding-bottom: 132px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}