:root {
  --yc-navy-950: #061525;
  --yc-navy-900: #081c33;
  --yc-navy-800: #0e2a4a;
  --yc-navy-700: #173b62;
  --yc-gold-500: #ba9d73;
  --yc-gold-300: #d5c19e;
  --yc-gold-700: #745829;
  --yc-paper: #f6f4ef;
  --yc-ink: #182332;
  --yc-slate: #5b6675;
  --yc-line: rgba(8, 28, 51, 0.12);
  --yc-white: #ffffff;
  --yc-shadow: 0 24px 64px rgba(6, 21, 37, 0.12);
  --yc-shadow-soft: 0 14px 34px rgba(6, 21, 37, 0.08);
  --yc-radius-lg: 28px;
  --yc-radius-md: 18px;
  --yc-radius-sm: 10px;
  --yc-header-height: 84px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  color: var(--yc-ink);
  background: var(--yc-white);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--yc-navy-800);
  text-decoration: none;
}

a:hover {
  color: var(--yc-gold-700);
}

img {
  max-width: 100%;
}

::selection {
  color: var(--yc-white);
  background: var(--yc-gold-700);
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 1100;
  padding: 0.7rem 1rem;
  color: var(--yc-white);
  background: var(--yc-navy-900);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  color: var(--yc-white);
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(186, 157, 115, 0.75);
  outline-offset: 3px;
}

.site-header {
  z-index: 1030;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(6, 21, 37, 0.86);
  backdrop-filter: blur(16px);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled,
.site-header.header-solid {
  background: rgba(6, 21, 37, 0.97);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.18);
}

.site-header .navbar {
  min-height: var(--yc-header-height);
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  max-width: min(440px, 63vw);
  color: var(--yc-white);
}

.site-brand:hover {
  color: var(--yc-white);
}

.brand-mark-shell {
  display: grid;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  place-items: center;
  overflow: hidden;
  background: #f4f2ed;
  border: 1px solid rgba(213, 193, 158, 0.8);
  border-radius: 10px;
  box-shadow: inset 0 0 0 3px rgba(8, 28, 51, 0.05);
}

.brand-mark {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  min-width: 0;
  margin-left: 0.78rem;
  flex-direction: column;
  line-height: 1.25;
}

.brand-cn {
  overflow: hidden;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-en {
  margin-top: 0.18rem;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.62);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.61rem;
  letter-spacing: 0.035em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header .navbar-toggler {
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 10px;
  box-shadow: none;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: var(--yc-white);
  content: "";
  transition: transform 0.2s ease, top 0.2s ease, opacity 0.2s ease;
}

.menu-icon::before {
  position: absolute;
  top: -7px;
}

.menu-icon::after {
  position: absolute;
  top: 7px;
}

.navbar-toggler[aria-expanded="true"] .menu-icon {
  background: transparent;
}

.navbar-toggler[aria-expanded="true"] .menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .menu-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.main-nav .nav-link {
  position: relative;
  margin: 0 0.15rem;
  padding: 0.75rem 0.72rem !important;
  color: rgba(255, 255, 255, 0.77);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.main-nav .nav-link::after {
  position: absolute;
  right: 0.72rem;
  bottom: 0.35rem;
  left: 0.72rem;
  height: 1px;
  background: var(--yc-gold-300);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.main-nav .nav-link:hover,
.main-nav .nav-link:focus,
.main-nav .nav-link.active {
  color: var(--yc-white);
}

.main-nav .nav-link:hover::after,
.main-nav .nav-link:focus::after,
.main-nav .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero-home {
  position: relative;
  display: flex;
  min-height: 760px;
  padding: calc(var(--yc-header-height) + 5.5rem) 0 5.5rem;
  align-items: center;
  overflow: hidden;
  color: var(--yc-white);
  background: var(--yc-navy-950);
}

.hero-home::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 21, 37, 0.99) 0%, rgba(6, 21, 37, 0.91) 38%, rgba(6, 21, 37, 0.28) 72%, rgba(6, 21, 37, 0.2) 100%),
    linear-gradient(180deg, rgba(6, 21, 37, 0.15), rgba(6, 21, 37, 0.76)),
    url("../images/hero.jpg") center / cover no-repeat;
  content: "";
}

.hero-home::after {
  position: absolute;
  right: -12vw;
  bottom: -48vw;
  width: 75vw;
  height: 75vw;
  border: 1px solid rgba(213, 193, 158, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 8vw rgba(213, 193, 158, 0.035), 0 0 0 16vw rgba(213, 193, 158, 0.02);
  content: "";
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 1.25rem;
  align-items: center;
  color: var(--yc-gold-300);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 42px;
  height: 1px;
  margin-right: 0.8rem;
  background: var(--yc-gold-500);
  content: "";
}

.hero-title {
  max-width: 690px;
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 5vw, 5.25rem);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.hero-title strong {
  display: block;
  color: var(--yc-gold-300);
  font-weight: 650;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 2.2rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.9;
}

.btn-yc-primary,
.btn-yc-outline,
.btn-yc-dark {
  min-height: 50px;
  padding: 0.7rem 1.35rem;
  border-radius: 6px;
  font-size: 0.93rem;
  font-weight: 650;
  letter-spacing: 0.03em;
}

.btn-yc-primary {
  color: var(--yc-navy-950);
  background: var(--yc-gold-300);
  border: 1px solid var(--yc-gold-300);
}

.btn-yc-primary:hover,
.btn-yc-primary:focus {
  color: var(--yc-white);
  background: var(--yc-gold-700);
  border-color: var(--yc-gold-700);
}

.btn-yc-outline {
  color: var(--yc-white);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-yc-outline:hover,
.btn-yc-outline:focus {
  color: var(--yc-navy-950);
  background: var(--yc-white);
  border-color: var(--yc-white);
}

.btn-yc-dark {
  color: var(--yc-white);
  background: var(--yc-navy-900);
  border: 1px solid var(--yc-navy-900);
}

.btn-yc-dark:hover,
.btn-yc-dark:focus {
  color: var(--yc-navy-950);
  background: var(--yc-gold-300);
  border-color: var(--yc-gold-300);
}

.hero-facts {
  position: relative;
  z-index: 2;
  margin-top: 4.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-fact {
  min-height: 96px;
  padding: 1.25rem 1.2rem 0.2rem 0;
}

.hero-fact + .hero-fact {
  padding-left: 1.6rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-fact-value {
  display: block;
  color: var(--yc-gold-300);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  line-height: 1.2;
}

.hero-fact-label {
  display: block;
  margin-top: 0.3rem;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.8rem;
}

.section-pad {
  padding: 7.5rem 0;
}

.section-pad-sm {
  padding: 5rem 0;
}

.section-paper {
  background: var(--yc-paper);
}

.section-navy {
  position: relative;
  color: var(--yc-white);
  background: var(--yc-navy-900);
  overflow: hidden;
}

.section-navy::before {
  position: absolute;
  top: -160px;
  right: -120px;
  width: 470px;
  height: 470px;
  border: 1px solid rgba(213, 193, 158, 0.17);
  border-radius: 50%;
  content: "";
}

.section-navy::after {
  position: absolute;
  right: 70px;
  bottom: -170px;
  width: 360px;
  height: 360px;
  background-image: radial-gradient(rgba(213, 193, 158, 0.22) 1px, transparent 1px);
  background-size: 16px 16px;
  content: "";
  opacity: 0.45;
}

.section-inner {
  position: relative;
  z-index: 2;
}

.section-kicker {
  display: block;
  margin-bottom: 1rem;
  color: var(--yc-gold-700);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.section-navy .section-kicker,
.page-hero .section-kicker {
  color: var(--yc-gold-300);
}

.section-title {
  margin-bottom: 1.25rem;
  color: var(--yc-navy-900);
  font-size: clamp(2rem, 3.6vw, 3.35rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.section-navy .section-title,
.page-hero .section-title {
  color: var(--yc-white);
}

.section-intro {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--yc-slate);
  font-size: 1.08rem;
}

.section-navy .section-intro,
.page-hero .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

.editorial-rule {
  width: 84px;
  height: 2px;
  margin: 2rem 0;
  background: var(--yc-gold-500);
}

.intro-panel {
  position: relative;
  padding: 3rem;
  background: var(--yc-white);
  border-radius: var(--yc-radius-lg);
  box-shadow: var(--yc-shadow);
}

.intro-panel::before {
  position: absolute;
  top: 0;
  left: 3rem;
  width: 82px;
  height: 4px;
  background: var(--yc-gold-500);
  content: "";
}

.quote-mark {
  color: var(--yc-gold-300);
  font-family: Georgia, serif;
  font-size: 4.8rem;
  line-height: 0.8;
}

.quote-copy {
  margin: 0.85rem 0 1.4rem;
  color: var(--yc-navy-900);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  font-weight: 500;
  line-height: 1.65;
}

.text-note {
  color: var(--yc-slate);
  font-size: 0.9rem;
}

.service-feature {
  position: relative;
  height: 100%;
  padding: 2.35rem 2rem 2.15rem;
  background: var(--yc-white);
  border: 1px solid var(--yc-line);
  border-radius: var(--yc-radius-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.service-feature:hover {
  border-color: rgba(186, 157, 115, 0.55);
  box-shadow: var(--yc-shadow-soft);
  transform: translateY(-6px);
}

.service-index {
  display: block;
  margin-bottom: 2.7rem;
  color: var(--yc-gold-700);
  font-family: Georgia, serif;
  font-size: 0.86rem;
  letter-spacing: 0.12em;
}

.section-navy .service-index {
  color: var(--yc-gold-300);
}

.service-feature h3 {
  margin-bottom: 1rem;
  color: var(--yc-navy-900);
  font-size: 1.35rem;
}

.service-feature p {
  margin-bottom: 1.5rem;
  color: var(--yc-slate);
}

.text-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 650;
}

.text-link::after {
  margin-left: 0.55rem;
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

.domain-strip {
  border-top: 1px solid var(--yc-line);
}

.domain-item {
  display: flex;
  min-height: 132px;
  padding: 1.7rem 1.1rem;
  align-items: flex-start;
  border-right: 1px solid var(--yc-line);
}

.domain-item:first-child {
  border-left: 1px solid var(--yc-line);
}

.domain-number {
  margin-right: 0.9rem;
  color: var(--yc-gold-700);
  font-family: Georgia, serif;
  font-size: 0.78rem;
}

.domain-item h3 {
  margin: 0;
  color: var(--yc-navy-900);
  font-size: 1.02rem;
  line-height: 1.55;
}

.process-grid {
  counter-reset: process;
}

.process-step {
  position: relative;
  min-height: 205px;
  padding: 1.7rem 1.4rem 1.4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  counter-increment: process;
}

.process-step::before {
  display: block;
  margin-bottom: 2.35rem;
  color: var(--yc-gold-300);
  font-family: Georgia, serif;
  font-size: 0.84rem;
  content: "0" counter(process);
}

.process-step::after {
  position: absolute;
  top: -4px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--yc-gold-300);
  border-radius: 50%;
  content: "";
}

.process-step h3 {
  margin-bottom: 0.65rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.process-step p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
}

.digital-panel {
  position: relative;
  padding: 4.2rem;
  overflow: hidden;
  color: var(--yc-white);
  background: linear-gradient(125deg, var(--yc-navy-900), var(--yc-navy-700));
  border-radius: var(--yc-radius-lg);
  box-shadow: var(--yc-shadow);
}

.digital-panel::before {
  position: absolute;
  top: -65%;
  right: -8%;
  width: 470px;
  height: 470px;
  border: 1px solid rgba(213, 193, 158, 0.3);
  border-radius: 50%;
  box-shadow: 0 0 0 45px rgba(213, 193, 158, 0.04), 0 0 0 90px rgba(213, 193, 158, 0.025);
  content: "";
}

.digital-label {
  color: var(--yc-gold-300);
  font-family: Georgia, serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.digital-panel h2 {
  margin: 1rem 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.digital-panel p {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.page-hero {
  position: relative;
  padding: calc(var(--yc-header-height) + 6.5rem) 0 6rem;
  overflow: hidden;
  color: var(--yc-white);
  background:
    linear-gradient(125deg, rgba(6, 21, 37, 0.98), rgba(14, 42, 74, 0.92)),
    url("../images/hero.jpg") center 58% / cover no-repeat;
}

.page-hero::after {
  position: absolute;
  top: 30%;
  right: -100px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(213, 193, 158, 0.24);
  border-radius: 50%;
  content: "";
}

.breadcrumb-yc {
  display: flex;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.82rem;
}

.breadcrumb-yc li + li::before {
  margin: 0 0.65rem;
  color: var(--yc-gold-500);
  content: "/";
}

.breadcrumb-yc a {
  color: rgba(255, 255, 255, 0.72);
}

.page-title {
  max-width: 760px;
  margin: 0 0 1.2rem;
  font-size: clamp(2.55rem, 5vw, 4.7rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.page-lead {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.08rem;
}

.fact-list {
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--yc-line);
}

.fact-list li {
  display: grid;
  padding: 1.15rem 0;
  grid-template-columns: minmax(120px, 0.6fr) 1.4fr;
  border-bottom: 1px solid var(--yc-line);
  gap: 1rem;
}

.fact-list span:first-child {
  color: var(--yc-slate);
  font-size: 0.88rem;
}

.fact-list strong {
  color: var(--yc-navy-900);
  font-weight: 600;
}

.value-tile {
  height: 100%;
  padding: 2.25rem;
  background: var(--yc-white);
  border: 1px solid var(--yc-line);
  border-radius: var(--yc-radius-md);
}

.value-tile .value-letter {
  display: block;
  margin-bottom: 2rem;
  color: var(--yc-gold-700);
  font-family: Georgia, serif;
  font-size: 2rem;
}

.value-tile h3 {
  color: var(--yc-navy-900);
  font-size: 1.2rem;
}

.value-tile p {
  margin: 0;
  color: var(--yc-slate);
  font-size: 0.92rem;
}

.service-detail {
  position: relative;
  padding: 3rem;
  background: var(--yc-white);
  border: 1px solid var(--yc-line);
  border-radius: var(--yc-radius-lg);
}

.service-detail + .service-detail {
  margin-top: 1.5rem;
}

.service-detail-number {
  display: block;
  margin-bottom: 2rem;
  color: var(--yc-gold-700);
  font-family: Georgia, serif;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
}

.service-detail h2,
.service-detail h3 {
  color: var(--yc-navy-900);
}

.check-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin-bottom: 0.75rem;
  padding-left: 1.6rem;
  color: var(--yc-slate);
}

.check-list li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--yc-gold-500);
  border-radius: 50%;
  content: "";
}

.solution-item {
  position: relative;
  height: 100%;
  min-height: 330px;
  padding: 2.6rem 2.25rem;
  overflow: hidden;
  color: var(--yc-white);
  background: var(--yc-navy-900);
  border-radius: var(--yc-radius-md);
}

.solution-item::after {
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(213, 193, 158, 0.22);
  border-radius: 50%;
  content: "";
}

.solution-item:nth-child(even),
.row > div:nth-child(even) .solution-item {
  background: var(--yc-navy-800);
}

.solution-index {
  display: block;
  margin-bottom: 3.5rem;
  color: var(--yc-gold-300);
  font-family: Georgia, serif;
  font-size: 0.82rem;
}

.solution-item h2,
.solution-item h3 {
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

.solution-item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
}

.license-summary {
  padding: 2.7rem;
  background: var(--yc-paper);
  border-left: 4px solid var(--yc-gold-500);
  border-radius: 0 var(--yc-radius-md) var(--yc-radius-md) 0;
}

.license-summary h2,
.license-summary h3 {
  color: var(--yc-navy-900);
}

.license-card {
  height: 100%;
  overflow: hidden;
  background: var(--yc-white);
  border: 1px solid var(--yc-line);
  border-radius: var(--yc-radius-md);
  box-shadow: var(--yc-shadow-soft);
}

.license-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e9e7e1;
}

.license-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}

.license-card:hover .license-image-wrap img {
  transform: scale(1.025);
}

.license-card-body {
  padding: 2rem;
}

.license-card-body h3 {
  margin-bottom: 0.6rem;
  color: var(--yc-navy-900);
  font-size: 1.25rem;
}

.license-card-body p {
  color: var(--yc-slate);
  font-size: 0.9rem;
}

.compliance-table {
  margin: 0;
}

.compliance-table th,
.compliance-table td {
  padding: 1rem 0;
  vertical-align: top;
  background: transparent;
  border-color: var(--yc-line);
}

.compliance-table th {
  width: 34%;
  color: var(--yc-slate);
  font-size: 0.88rem;
  font-weight: 400;
}

.compliance-table td {
  color: var(--yc-navy-900);
  font-weight: 600;
}

.contact-card {
  height: 100%;
  padding: 2.5rem;
  background: var(--yc-white);
  border: 1px solid var(--yc-line);
  border-radius: var(--yc-radius-md);
}

.contact-card .contact-label {
  display: block;
  margin-bottom: 1.25rem;
  color: var(--yc-gold-700);
  font-family: Georgia, serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact-card h2,
.contact-card h3 {
  color: var(--yc-navy-900);
  font-size: 1.28rem;
}

.contact-card p {
  margin: 0;
  color: var(--yc-slate);
}

.contact-phone {
  display: inline-block;
  color: var(--yc-navy-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  line-height: 1.25;
}

.map-panel {
  position: relative;
  min-height: 420px;
  padding: 3rem;
  overflow: hidden;
  color: var(--yc-white);
  background-color: var(--yc-navy-900);
  background-image:
    linear-gradient(rgba(213, 193, 158, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(213, 193, 158, 0.09) 1px, transparent 1px);
  background-size: 46px 46px;
  border-radius: var(--yc-radius-lg);
}

.map-panel::before,
.map-panel::after {
  position: absolute;
  border: 1px solid rgba(213, 193, 158, 0.35);
  border-radius: 50%;
  content: "";
}

.map-panel::before {
  top: 18%;
  right: 18%;
  width: 170px;
  height: 170px;
  box-shadow: 0 0 0 32px rgba(213, 193, 158, 0.04), 0 0 0 64px rgba(213, 193, 158, 0.025);
}

.map-panel::after {
  top: calc(18% + 77px);
  right: calc(18% + 77px);
  width: 16px;
  height: 16px;
  background: var(--yc-gold-300);
}

.map-copy {
  position: absolute;
  right: 3rem;
  bottom: 3rem;
  left: 3rem;
  z-index: 2;
}

.map-copy span {
  color: var(--yc-gold-300);
  font-family: Georgia, serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.map-copy h2 {
  max-width: 720px;
  margin: 0.8rem 0 0;
  font-size: clamp(1.45rem, 2.5vw, 2.2rem);
  line-height: 1.55;
}

.cta-band {
  position: relative;
  padding: 4.4rem 0;
  overflow: hidden;
  color: var(--yc-white);
  background: var(--yc-navy-800);
}

.cta-band::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 32%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(213, 193, 158, 0.1));
  clip-path: polygon(38% 0, 100% 0, 100% 100%, 0 100%);
  content: "";
}

.cta-band h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.cta-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.65);
}

.site-footer {
  color: rgba(255, 255, 255, 0.64);
  background: var(--yc-navy-950);
}

.footer-main {
  padding: 5.2rem 0 3.6rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  color: var(--yc-white);
}

.footer-title {
  color: var(--yc-white);
  font-size: 1rem;
  font-weight: 700;
}

.footer-subtitle {
  display: block;
  margin-top: 0.2rem;
  color: rgba(255, 255, 255, 0.52);
  font-family: Georgia, serif;
  font-size: 0.68rem;
}

.footer-intro {
  max-width: 480px;
  margin: 1.6rem 0 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.9rem;
}

.footer-heading {
  margin-bottom: 1.2rem;
  color: var(--yc-gold-300);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li + li {
  margin-top: 0.55rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--yc-white);
}

.footer-contact {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.88rem;
}

.footer-contact li + li {
  margin-top: 0.85rem;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.72);
}

.footer-bottom {
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
}

.footer-bottom p {
  margin: 0;
}

.filing-slot {
  margin-inline-start: 0.75rem;
}

.filing-slot a {
  color: inherit;
}

.filing-slot a:hover {
  color: var(--yc-white);
  text-decoration: underline;
}

.filing-slot:empty {
  display: none;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1020;
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  color: var(--yc-navy-950);
  background: var(--yc-gold-300);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 10px 28px rgba(6, 21, 37, 0.28);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

@media (max-width: 1199.98px) {
  :root {
    --yc-header-height: 76px;
  }

  .site-header .navbar-collapse {
    max-height: calc(100vh - var(--yc-header-height));
    padding: 1rem 0 1.6rem;
    overflow-y: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .main-nav .nav-link {
    margin: 0;
    padding: 0.85rem 0 !important;
  }

  .main-nav .nav-link::after {
    right: auto;
    bottom: 0.55rem;
    left: 0;
    width: 36px;
  }

  .hero-home {
    min-height: 720px;
  }

  .section-pad {
    padding: 6.2rem 0;
  }

  .digital-panel {
    padding: 3.4rem;
  }
}

@media (max-width: 767.98px) {
  :root {
    --yc-radius-lg: 21px;
    --yc-radius-md: 15px;
  }

  body {
    line-height: 1.7;
  }

  .brand-mark-shell {
    flex-basis: 42px;
    width: 42px;
    height: 42px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-cn {
    font-size: 0.88rem;
  }

  .brand-en {
    display: none;
  }

  .hero-home {
    min-height: auto;
    padding-top: calc(var(--yc-header-height) + 4rem);
    padding-bottom: 4rem;
  }

  .hero-home::before {
    background:
      linear-gradient(90deg, rgba(6, 21, 37, 0.98), rgba(6, 21, 37, 0.75)),
      linear-gradient(180deg, rgba(6, 21, 37, 0.25), rgba(6, 21, 37, 0.92)),
      url("../images/hero.jpg") 67% center / cover no-repeat;
  }

  .hero-title {
    font-size: clamp(2.45rem, 13vw, 3.6rem);
  }

  .hero-facts {
    margin-top: 3.3rem;
  }

  .hero-fact {
    min-height: auto;
    padding: 1rem 0;
  }

  .hero-fact + .hero-fact {
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-left: 0;
  }

  .section-pad {
    padding: 4.7rem 0;
  }

  .section-pad-sm {
    padding: 3.8rem 0;
  }

  .intro-panel,
  .service-detail,
  .license-summary,
  .contact-card {
    padding: 2rem 1.5rem;
  }

  .intro-panel::before {
    left: 1.5rem;
  }

  .domain-item {
    min-height: 106px;
    border-bottom: 1px solid var(--yc-line);
    border-left: 1px solid var(--yc-line);
  }

  .process-step {
    min-height: 165px;
  }

  .digital-panel {
    padding: 2.6rem 1.6rem;
  }

  .page-hero {
    padding-top: calc(var(--yc-header-height) + 4.5rem);
    padding-bottom: 4rem;
  }

  .page-title {
    font-size: clamp(2.3rem, 12vw, 3.5rem);
  }

  .fact-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .solution-item {
    min-height: 280px;
    padding: 2.1rem 1.65rem;
  }

  .solution-index {
    margin-bottom: 2.5rem;
  }

  .map-panel {
    min-height: 390px;
    padding: 1.6rem;
  }

  .map-copy {
    right: 1.6rem;
    bottom: 1.6rem;
    left: 1.6rem;
  }

  .cta-band {
    padding: 3.4rem 0;
  }

  .footer-main {
    padding: 4rem 0 2.8rem;
  }
}

@media (max-width: 419.98px) {
  .brand-cn {
    max-width: 190px;
    font-size: 0.78rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-actions .btn + .btn {
    margin-top: 0.75rem;
    margin-left: 0 !important;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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