:root {
  --color-gold: #D4AF37;
  --color-red: #C8102E;
  --color-ink: #0A0A0A;
  --color-dark-red: #4A0E0E;
  --color-emerald: #00A86B;
  --color-rice: #F1E5C3;
  --color-gray: #8C8C8C;
  --color-white: #FFFFFF;
  --font-heading: "Noto Serif SC", "Source Han Serif CN", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-gold: 0 0 18px rgba(212, 175, 55, 0.3);
  --ease: cubic-bezier(0.25, 0.6, 0.3, 1);
}

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

body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd,
ul,
ol,
pre {
  margin: 0;
}

ul[class],
ol[class] {
  padding: 0;
  list-style: none;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-color: var(--color-gold) var(--color-ink);
  scrollbar-width: thin;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 82% 8%, rgba(74, 14, 14, 0.45), transparent 46%),
    radial-gradient(circle at 12% 92%, rgba(212, 175, 55, 0.05), transparent 30%),
    var(--color-ink);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  background: var(--color-gold);
  color: var(--color-ink);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-ink);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-gold), var(--color-dark-red));
  border-radius: 6px;
  border: 2px solid var(--color-ink);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

#main-content {
  min-height: 60vh;
  scroll-margin-top: 72px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 3000;
  padding: 10px 20px;
  background: var(--color-gold);
  color: var(--color-ink);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-gold);
  transform: translateY(-150%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 80px 0;
}

.section-tight {
  padding: 48px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.2s var(--ease);
}

.btn-gold {
  background: linear-gradient(135deg, #E8CE7D 0%, var(--color-gold) 45%, #B8972C 100%);
  color: var(--color-ink);
  border-color: #F5E1A0;
  box-shadow: 0 2px 10px rgba(212, 175, 55, 0.25);
}

.btn-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-gold);
  border-color: rgba(212, 175, 55, 0.6);
}

.btn-outline:hover {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--color-gold);
}

.btn-red {
  background: linear-gradient(135deg, #E02A3E, var(--color-red));
  color: var(--color-white);
  border-color: #F06A7A;
  box-shadow: 0 2px 10px rgba(200, 16, 46, 0.3);
}

.btn-red:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(200, 16, 46, 0.45);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.site-topbar {
  background: linear-gradient(90deg, var(--color-dark-red) 0%, var(--color-ink) 35%, var(--color-ink) 65%, var(--color-dark-red) 100%);
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
  color: var(--color-rice);
  font-size: 12px;
  letter-spacing: 1px;
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 32px;
  gap: 16px;
}

.topbar-statement {
  color: var(--color-gold);
  font-weight: 500;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.topbar-statement::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-emerald);
  margin-right: 8px;
  box-shadow: 0 0 6px rgba(0, 168, 107, 0.6);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-nav a {
  color: var(--color-rice);
  font-size: 12px;
  letter-spacing: 0.5px;
  padding: 2px 0;
  transition: color 0.2s;
}

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

.topbar-dot {
  color: rgba(212, 175, 55, 0.4);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1400;
  background: rgba(10, 10, 10, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--color-gold);
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 220px;
  background: repeating-linear-gradient(135deg, rgba(212, 175, 55, 0.04) 0px, rgba(212, 175, 55, 0.04) 2px, transparent 2px, transparent 8px);
  pointer-events: none;
}

.site-header[data-scrolled="true"] {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.55);
  border-bottom-color: rgba(212, 175, 55, 0.9);
}

.header-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--color-red), var(--color-dark-red));
  border: 2px solid var(--color-gold);
  box-shadow: 0 0 14px rgba(212, 175, 55, 0.3), inset 0 0 10px rgba(0, 0, 0, 0.4);
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: -1px;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.brand:hover .brand-tile {
  box-shadow: 0 0 22px rgba(212, 175, 55, 0.5), inset 0 0 10px rgba(0, 0, 0, 0.4);
  transform: rotate(-3deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-text strong {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 2px;
}

.brand-text small {
  font-size: 11px;
  color: var(--color-gray);
  letter-spacing: 1px;
  margin-top: 2px;
}

.main-nav {
  flex: 0 1 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-rice);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.nav-link:hover {
  color: var(--color-gold);
  border-color: rgba(212, 175, 55, 0.35);
  background: rgba(212, 175, 55, 0.06);
}

.nav-link[aria-current="page"] {
  color: var(--color-ink);
  background: var(--color-gold);
  border-color: var(--color-gold);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-cta {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: var(--radius-md);
  background: rgba(212, 175, 55, 0.06);
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}

.nav-toggle:hover {
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.12);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--color-red);
  box-shadow: 0 0 12px rgba(200, 16, 46, 0.3);
}

.nav-toggle-bar {
  position: absolute;
  left: 9px;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), top 0.3s var(--ease);
}

.nav-toggle-bar:nth-child(1) {
  top: 11px;
}

.nav-toggle-bar:nth-child(2) {
  top: 19px;
}

.nav-toggle-bar:nth-child(3) {
  top: 27px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.3);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  top: 19px;
  transform: rotate(-45deg);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 1500;
  background: rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.scroll-progress-fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold), var(--color-emerald));
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.6);
}

.site-footer {
  position: relative;
  margin-top: 96px;
  background: linear-gradient(180deg, var(--color-ink) 0%, var(--color-dark-red) 60%, #2A0505 100%);
  border-top: 3px solid var(--color-gold);
  overflow: hidden;
}

.site-footer::before {
  content: "\767C";
  position: absolute;
  right: -20px;
  bottom: -60px;
  font-family: var(--font-heading);
  font-size: 280px;
  font-weight: 700;
  line-height: 1;
  color: rgba(212, 175, 55, 0.05);
  transform: rotate(-15deg);
  pointer-events: none;
  user-select: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 140px;
  height: 5px;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold));
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding: 56px 0 40px;
}

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

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-brand-link:hover .brand-tile {
  box-shadow: 0 0 18px rgba(212, 175, 55, 0.45);
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.footer-brand-text strong {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 2px;
}

.footer-brand-text small {
  font-size: 11px;
  color: var(--color-gray);
  letter-spacing: 1px;
  margin-top: 2px;
}

.footer-trust {
  color: var(--color-gray);
  font-size: 13px;
  line-height: 1.9;
  margin-top: 16px;
  max-width: 360px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.footer-heading::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-red);
  margin-top: 8px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  color: var(--color-rice);
  font-size: 14px;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-nav a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

.footer-contact p {
  color: var(--color-gray);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 4px;
}

.footer-contact strong {
  color: var(--color-rice);
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid rgba(212, 175, 55, 0.15);
  background: rgba(0, 0, 0, 0.2);
  padding: 14px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--color-gray);
  font-size: 12px;
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1300;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.9);
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.back-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  box-shadow: 0 0 24px rgba(212, 175, 55, 0.45);
  background: var(--color-gold);
  color: var(--color-ink);
}

.back-top-icon {
  font-size: 20px;
  line-height: 1;
  font-weight: 700;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-gray);
  flex-wrap: wrap;
  padding: 24px 0 0;
}

.breadcrumb a {
  color: var(--color-gold);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--color-red);
}

.breadcrumb-sep {
  color: var(--color-gray);
  opacity: 0.6;
}

.breadcrumb-current {
  color: var(--color-rice);
}

.page-header {
  position: relative;
  padding: 64px 0 48px;
}

.page-header::before {
  content: "\767C";
  position: absolute;
  right: 0;
  top: 0;
  font-family: var(--font-heading);
  font-size: 120px;
  line-height: 1;
  color: rgba(212, 175, 55, 0.05);
  pointer-events: none;
  user-select: none;
}

.page-kicker {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 16px;
  position: relative;
}

.page-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold));
  margin-top: 16px;
  border-radius: 2px;
}

.page-description {
  color: var(--color-gray);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.8;
}

.tile-card {
  position: relative;
  padding: 32px 28px;
  background: linear-gradient(145deg, rgba(26, 26, 26, 0.95), rgba(10, 10, 10, 0.98));
  border: 2px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(212, 175, 55, 0.08);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.tile-card::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: 14px;
  pointer-events: none;
}

.tile-card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(212, 175, 55, 0.15);
  transform: translateY(-2px);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(212, 175, 55, 0.5);
  background: rgba(212, 175, 55, 0.08);
  color: var(--color-gold);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  line-height: 1.4;
}

.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chip-green {
  border-color: rgba(0, 168, 107, 0.5);
  background: rgba(0, 168, 107, 0.08);
  color: var(--color-emerald);
}

.chip-red {
  border-color: rgba(200, 16, 46, 0.5);
  background: rgba(200, 16, 46, 0.1);
  color: #FF6B6B;
}

.image-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: linear-gradient(145deg, #1A1A1A, var(--color-dark-red));
  aspect-ratio: 4 / 3;
}

.image-frame.is-wide {
  aspect-ratio: 16 / 7;
}

.image-frame.is-tile {
  aspect-ratio: 3 / 4;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

[data-section-target] {
  scroll-margin-top: 96px;
}

[data-section-link].is-active {
  color: var(--color-gold);
  font-weight: 700;
}

.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;
}

@media (max-width: 1100px) {
  .header-inner {
    gap: 16px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 14px;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .footer-contact {
    grid-column: span 3;
  }
}

@media (max-width: 959px) {
  .main-nav {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    right: 0;
    display: none;
    background: rgba(10, 10, 10, 0.98);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    border-bottom: 2px solid var(--color-gold);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.45);
  }

  .main-nav[data-open="true"] {
    display: block;
  }

  .nav-list {
    display: block;
    padding: 12px 20px 20px;
  }

  .nav-item + .nav-item {
    margin-top: 4px;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: span 2;
  }

  .footer-contact {
    grid-column: span 2;
  }
}

@media (max-width: 560px) {
  .topbar-nav {
    display: none;
  }

  .header-inner {
    padding: 10px 16px;
  }

  .brand-tile {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    font-size: 11px;
  }

  .brand-text strong {
    font-size: 18px;
  }

  .brand-text small {
    display: none;
  }

  .section {
    padding: 56px 0;
  }

  .section-tight {
    padding: 32px 0;
  }

  .page-header {
    padding: 48px 0 36px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 0 32px;
  }

  .footer-brand,
  .footer-contact {
    grid-column: auto;
  }

  .footer-bottom-inner {
    justify-content: center;
    text-align: center;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

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

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