:root {
  --cream: #F5F0E8;
  --ink: #1A1712;
  --navy: #0A1F44;
  --navy-light: #11294F;
  --orange: #FF6B00;
  --gold: #FFD700;
  --gold-2: #FF9400;
  --paper: #FFFDF8;
  --border: #E0D8CC;
  --muted: #5A5044;
  --white-soft: rgba(245, 240, 232, 0.88);
  --font-heading: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-display: "Impact", "Haettenschweiler", "Noto Serif SC", "Source Han Serif SC", serif;
  --font-body: "Inter", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-data: "Cutive Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shadow-soft: 0 12px 30px rgba(26, 23, 18, 0.07);
  --shadow-navy: 0 14px 32px rgba(10, 31, 68, 0.22);
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background:
    radial-gradient(1100px 440px at 88% -100px, rgba(255, 107, 0, 0.10), transparent 65%),
    radial-gradient(800px 420px at 4% 4%, rgba(255, 215, 0, 0.06), transparent 60%),
    var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
}

p,
ul,
ol,
figure,
blockquote {
  margin: 0 0 1rem;
}

a {
  color: var(--orange);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: #D95A00;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--ink);
}

main {
  display: block;
}

#main-content {
  scroll-margin-top: 110px;
  outline: none;
}

::selection {
  background: var(--orange);
  color: #FFFFFF;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 300;
  display: inline-block;
  padding: 10px 18px;
  background: var(--navy);
  color: var(--paper);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.2s ease;
  pointer-events: auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  padding: 18px 20px 10px;
  pointer-events: none;
}

.nav-pill {
  position: relative;
  max-width: 1380px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px 10px 18px;
  background: linear-gradient(135deg, rgba(10, 31, 68, 0.98), rgba(17, 41, 79, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  box-shadow: var(--shadow-navy);
  pointer-events: auto;
  transition: padding 0.25s ease, box-shadow 0.25s ease;
}

.site-header[data-scrolled="true"] .nav-pill {
  padding-top: 8px;
  padding-bottom: 8px;
  box-shadow: 0 18px 40px rgba(10, 31, 68, 0.30);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-right: auto;
  text-decoration: none;
  color: var(--paper);
}

.brand-lockup:hover {
  color: var(--paper);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: var(--navy);
  border-radius: 10px 14px 10px 14px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25), 0 4px 12px rgba(255, 107, 0, 0.25);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1;
}

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

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.12rem;
  color: #FFFFFF;
  letter-spacing: 0.04em;
}

.brand-caption {
  margin-top: 3px;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(245, 240, 232, 0.62);
}

.site-nav[data-nav] {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 8px 13px;
  border-radius: 999px;
  color: rgba(245, 240, 232, 0.85);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.09);
  color: #FFFFFF;
}

.nav-link[aria-current="page"] {
  background: var(--orange);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(255, 107, 0, 0.32);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--orange);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.cta-button:hover {
  background: #FF811F;
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(255, 107, 0, 0.35);
}

.cta-arrow {
  transition: transform 0.2s ease;
}

.cta-button:hover .cta-arrow {
  transform: translateX(3px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #FFFFFF;
}

.nav-toggle-icon {
  position: relative;
  width: 16px;
  height: 12px;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: top 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-toggle-icon::before {
  top: 0;
}

.nav-toggle-icon::after {
  top: 5px;
  box-shadow: 0 5px 0 currentColor;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 5px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 5px;
  box-shadow: none;
  transform: rotate(-45deg);
}

@media (max-width: 920px) {
  .site-header {
    padding: 12px 14px 10px;
  }

  .nav-pill {
    gap: 10px;
    padding-left: 12px;
    border-radius: 26px;
  }

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

  .site-nav[data-nav] {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    justify-content: stretch;
    background: var(--navy);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 12px;
    box-shadow: 0 20px 44px rgba(10, 31, 68, 0.34);
  }

  .site-header[data-open="true"] .site-nav[data-nav] {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 16px;
  }

  .brand-caption {
    display: block;
  }
}

@media (max-width: 480px) {
  .brand-caption {
    display: none;
  }

  .cta-button {
    padding: 9px 12px;
    font-size: 0.82rem;
  }
}

.site-footer {
  position: relative;
  margin-top: 80px;
  background: var(--navy);
  color: var(--white-soft);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--gold) 38%, var(--gold-2) 72%, transparent 100%);
}

.site-footer a {
  color: var(--gold);
  text-decoration-color: rgba(255, 215, 0, 0.4);
}

.site-footer a:hover {
  color: #FFFFFF;
}

.footer-shell {
  max-width: 1380px;
  margin: 0 auto;
  padding: 52px 24px 28px;
}

.footer-head {
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--orange);
  color: var(--paper);
  border-radius: 3px;
  box-shadow: 0 6px 18px rgba(255, 107, 0, 0.3);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1;
}

.footer-brand-line {
  margin: 0;
  color: var(--paper);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 0.8fr;
  gap: 32px;
  padding: 34px 0 30px;
}

.footer-title {
  margin: 0 0 12px;
  color: var(--gold);
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-about {
  max-width: 640px;
  margin: 0;
  font-size: 0.94rem;
  color: rgba(245, 240, 232, 0.76);
}

.footer-trust {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid rgba(255, 215, 0, 0.5);
  color: rgba(245, 240, 232, 0.56);
  font-size: 0.8rem;
  line-height: 1.7;
}

.footer-contact {
  margin: 0 0 12px;
  color: rgba(245, 240, 232, 0.74);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-contact-link {
  display: inline-flex;
  padding: 8px 16px;
  border: 1px solid rgba(255, 215, 0, 0.35);
  border-radius: 999px;
  color: var(--gold);
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
}

.footer-contact-link:hover {
  background: rgba(255, 215, 0, 0.1);
  color: var(--gold);
}

.footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer-nav a {
  display: inline-flex;
  color: rgba(245, 240, 232, 0.82);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-nav a:hover {
  color: var(--gold);
  padding-left: 3px;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(245, 240, 232, 0.5);
  font-size: 0.8rem;
}

.footer-copy,
.footer-icp {
  margin: 0;
}

@media (max-width: 920px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-col:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-meta {
    flex-direction: column;
    gap: 6px;
  }
}

.page-shell {
  max-width: 1380px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 56px) clamp(20px, 4vw, 48px);
}

.prose {
  max-width: 720px;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ink);
}

.prose h2 {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
}

.prose h3 {
  font-size: 1.3rem;
}

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

.section-kicker {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
}

.section-note {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: var(--shadow-soft);
  padding: clamp(20px, 4vw, 36px);
}

.panel--dark {
  background: var(--navy);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--white-soft);
}

.panel--accent {
  box-shadow: inset 4px 0 0 var(--orange), var(--shadow-soft);
}

.panel--offset-left {
  margin-right: clamp(0px, 6vw, 100px);
}

.panel--offset-right {
  margin-left: clamp(0px, 6vw, 100px);
}

.panel-title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  line-height: 1.3;
}

.panel--dark .panel-title {
  color: var(--paper);
}

.panel-body {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.8;
}

.panel--dark .panel-body {
  color: rgba(245, 240, 232, 0.78);
}

.button {
  display: inline-block;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button--primary {
  background: var(--orange);
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(255, 107, 0, 0.28);
}

.button--primary:hover {
  background: #FF811F;
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(255, 107, 0, 0.34);
}

.button--ghost {
  color: var(--navy);
  border-color: var(--navy);
}

.button--ghost:hover {
  background: var(--navy);
  color: var(--paper);
}

.breadcrumb {
  margin: 0 0 24px;
  font-size: 0.86rem;
  color: var(--muted);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb-item {
  display: inline-flex;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 6px;
  color: var(--border);
}

.breadcrumb-item a {
  color: var(--muted);
  text-decoration: none;
}

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

.data-card {
  padding: 20px;
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  color: var(--white-soft);
}

.data-value {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.data-label {
  margin: 8px 0 0;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245, 240, 232, 0.66);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid rgba(255, 107, 0, 0.25);
  border-radius: 999px;
  background: rgba(255, 107, 0, 0.1);
  color: var(--orange);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.2;
}

.divider {
  height: 1px;
  margin: 32px 0;
  border: 0;
  background: linear-gradient(90deg, var(--border), transparent);
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@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;
  }

  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}