:root {
  --color-navy: #0A1E3C;
  --color-orange: #FF6B35;
  --color-gold: #D4A444;
  --color-ink: #081A29;
  --color-slate: #233B5E;
  --color-white: #FFFFFF;
  --color-silver: #A8B2C1;
  --color-green: #00C9A7;
  --color-red: #FF4B4B;
  --color-mist: #E8EDF2;

  --header-h: 72px;
  --container-w: 1200px;
  --container-pad: 24px;

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;

  --shadow-sm: 0 4px 16px rgba(8,26,41,.08);
  --shadow-md: 0 12px 32px rgba(8,26,41,.12);
  --shadow-lg: 0 20px 48px rgba(8,26,41,.16);

  --font-head: "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Sans 3", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-data: "Roboto Mono", Consolas, "Courier New", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-slate);
  background: var(--color-mist);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--color-navy);
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

ul[class], ol[class] { list-style: none; }
ul:not([class]), ol:not([class]) { padding-left: 1.4em; }

a { color: var(--color-orange); text-decoration: none; }
a:hover { text-decoration: underline; }

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

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

address { font-style: normal; }

:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 2px;
  border-radius: 6px;
}
a:focus-visible, button:focus-visible { outline-offset: 3px; }
#main-content:focus { outline: none; }

#main-content {
  min-height: 70vh;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
@media (min-width: 1280px) {
  .container { padding-left: 32px; padding-right: 32px; }
}

.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-dark { background: var(--color-navy); color: var(--color-white); }
.section-ink { background: var(--color-ink); color: var(--color-white); }
.section-light { background: var(--color-mist); color: var(--color-slate); }

.section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 40px;
  max-width: 900px;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.section-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.section-title { font-size: 2rem; }
.section-lead {
  max-width: 640px;
  font-size: 1.05rem;
  color: var(--color-silver);
}
.section-light .section-lead { color: var(--color-slate); }

.page-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-navy), var(--color-ink));
  color: var(--color-white);
  padding-top: calc(var(--header-h) + 64px);
  padding-bottom: 64px;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(255,107,53,.20), transparent 42%),
    radial-gradient(circle at 12% 85%, rgba(212,164,68,.14), transparent 40%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1, .page-hero h2, .page-hero h3, .page-hero h4 { color: var(--color-white); }

.display-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1.06;
  margin-bottom: .35em;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 2000;
  background: var(--color-orange);
  color: var(--color-white);
  font-weight: 800;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 20px rgba(8,26,41,.3);
  transition: top .25s ease;
}
.skip-link:focus {
  top: 16px;
  color: var(--color-white);
  text-decoration: none;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 1002;
  background: linear-gradient(90deg, var(--color-orange), var(--color-gold) 60%, var(--color-green));
  border-radius: 0 2px 2px 0;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background-color: rgba(10,30,60,.52);
  transition: background-color .35s ease, box-shadow .35s ease;
}
.site-header.is-scrolled {
  background-color: rgba(10,30,60,.98);
  box-shadow: 0 8px 24px rgba(8,26,41,.30);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  text-decoration: none;
}
.brand:hover { color: var(--color-white); text-decoration: none; }
.brand-mark {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy);
  background: linear-gradient(135deg, var(--color-orange), var(--color-gold));
  box-shadow: 0 4px 12px rgba(255,107,53,.35);
}
.brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  line-height: 1.15;
}
.brand-name {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: .03em;
  white-space: nowrap;
}
.brand-badge {
  font-family: var(--font-data);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--color-gold);
  border: 1px solid rgba(212,164,68,.55);
  padding: 1px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}
.nav-link {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  color: rgba(255,255,255,.85);
  font-size: .96rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color .25s ease, color .25s ease, box-shadow .25s ease;
}
.nav-link:hover {
  color: var(--color-white);
  background: rgba(255,255,255,.12);
  text-decoration: none;
}
.nav-link[aria-current="page"] {
  color: var(--color-white);
  background: rgba(255,107,53,.18);
  box-shadow: inset 0 0 0 1px rgba(255,107,53,.5);
}
.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color .25s ease, background-color .25s ease;
}
.nav-toggle:hover {
  border-color: var(--color-orange);
  background: rgba(255,255,255,.14);
}
.nav-toggle-line {
  width: 20px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(8,26,41,.92);
  color: var(--color-orange);
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(8,26,41,.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .25s ease, visibility .25s ease, transform .25s ease, background-color .25s ease, color .25s ease;
}
.back-to-top:hover {
  background: var(--color-orange);
  color: var(--color-white);
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.2;
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease, color .25s ease, background-color .25s ease, border-color .25s ease;
}
.btn:active { transform: translateY(0) scale(.98); }
.btn-primary {
  background: linear-gradient(135deg, var(--color-orange), #E84D1C);
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(255,107,53,.30);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255,107,53,.40);
  color: var(--color-white);
  text-decoration: none;
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,.4);
}
.btn-outline:hover {
  transform: translateY(-2px);
  border-color: var(--color-orange);
  color: var(--color-orange);
  text-decoration: none;
}
.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), #B8860B);
  color: var(--color-navy);
  box-shadow: 0 8px 20px rgba(212,164,68,.30);
}
.btn-gold:hover {
  transform: translateY(-2px);
  color: var(--color-navy);
  box-shadow: 0 12px 28px rgba(212,164,68,.42);
  text-decoration: none;
}
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  font-family: var(--font-data);
  font-size: .88rem;
  color: var(--color-silver);
}
.breadcrumb li { display: inline-flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin: 0 10px;
  color: rgba(255,255,255,.32);
}
.breadcrumb a {
  color: var(--color-silver);
  text-decoration: none;
  transition: color .2s ease;
}
.breadcrumb a:hover {
  color: var(--color-orange);
  text-decoration: none;
}
.breadcrumb [aria-current="page"] {
  color: var(--color-orange);
  font-weight: 700;
}

.grid-2, .grid-3, .grid-4 { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

.card {
  background: var(--color-white);
  color: var(--color-slate);
  border: 1px solid rgba(10,30,60,.06);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,107,53,.25);
}
.card-dark {
  background: rgba(255,255,255,.05);
  color: var(--color-white);
  border-color: rgba(255,255,255,.10);
  box-shadow: none;
}
.card-dark h1, .card-dark h2, .card-dark h3, .card-dark h4 { color: var(--color-white); }
.card-pad-lg { padding: 32px; }
.card-flat { background: transparent; border: none; box-shadow: none; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .02em;
  white-space: nowrap;
}
.tag-gold { background: rgba(212,164,68,.12); color: #9A7B1E; border: 1px solid rgba(212,164,68,.35); }
.tag-green { background: rgba(0,201,167,.12); color: #008E78; border: 1px solid rgba(0,201,167,.35); }
.tag-red { background: rgba(255,75,75,.12); color: #D92E2E; border: 1px solid rgba(255,75,75,.35); }
.tag-orange { background: rgba(255,107,53,.12); color: #E0521E; border: 1px solid rgba(255,107,53,.35); }
.tag-silver { background: rgba(168,178,193,.14); color: var(--color-slate); border: 1px solid rgba(168,178,193,.35); }
.card-dark .tag-gold { color: var(--color-gold); }
.card-dark .tag-green { color: var(--color-green); }
.card-dark .tag-red { color: var(--color-red); }
.card-dark .tag-orange { color: var(--color-orange); }
.card-dark .tag-silver { color: var(--color-silver); }

.data-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.mono { font-family: var(--font-data); font-variant-numeric: tabular-nums; }
.data-item {
  border-left: 3px solid var(--color-orange);
  padding: 14px 16px;
  background: rgba(10,30,60,.04);
  border-radius: 0 14px 14px 0;
}
.data-label {
  display: block;
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--color-silver);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.data-value {
  font-family: var(--font-data);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.data-ups .data-value { color: var(--color-green); }
.data-down .data-value { color: var(--color-red); }
.card-dark .data-item { background: rgba(255,255,255,.06); }
.card-dark .data-item .data-value { color: var(--color-white); }

.stat-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius-sm);
}
.stat-value {
  font-family: var(--font-data);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--color-silver);
  text-transform: uppercase;
}

.timeline {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 0;
  padding: 0;
}
.timeline-item { position: relative; padding-left: 32px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-orange), var(--color-gold));
  box-shadow: 0 0 0 4px rgba(255,107,53,.14);
}
.timeline-item::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 30px;
  bottom: -28px;
  width: 2px;
  background: linear-gradient(180deg, rgba(255,107,53,.35), rgba(212,164,68,.10));
}
.timeline-item:last-child::after { display: none; }

.image-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(145deg, var(--color-slate), var(--color-ink));
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-silver);
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 25%, rgba(255,107,53,.22), transparent 55%),
    radial-gradient(circle at 20% 80%, rgba(0,201,167,.14), transparent 45%);
  pointer-events: none;
}
.image-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.image-frame-placeholder {
  position: relative;
  z-index: 1;
  font-family: var(--font-data);
  font-size: .82rem;
  letter-spacing: .14em;
  color: rgba(255,255,255,.7);
  text-transform: uppercase;
  padding: 16px;
  text-align: center;
}
.image-ratio-169 { aspect-ratio: 16 / 9; }
.image-ratio-43 { aspect-ratio: 4 / 3; }
.image-ratio-1 { aspect-ratio: 1 / 1; }

.site-footer {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-navy), var(--color-ink));
  color: var(--color-silver);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 72px;
  padding-bottom: 48px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.footer-brand .brand-name { font-size: 1.35rem; }
.footer-brand .brand-mark { width: 46px; height: 46px; font-size: 1.4rem; }
.footer-desc { max-width: 36em; line-height: 1.8; }
.footer-region {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid rgba(0,201,167,.35);
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-green);
  background: rgba(0,201,167,.06);
}
.footer-live-dot {
  position: relative;
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
}
.footer-live-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid var(--color-green);
  animation: live-pulse 2s ease-out infinite;
}
@keyframes live-pulse {
  0% { transform: scale(.6); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}
.footer-col { display: flex; flex-direction: column; gap: 16px; }
.footer-col-title {
  font-family: var(--font-data);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-gold);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  display: inline-block;
  color: var(--color-silver);
  text-decoration: none;
  transition: color .2s ease, transform .2s ease;
}
.footer-links a:hover {
  color: var(--color-orange);
  transform: translateX(4px);
  text-decoration: none;
}
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-address { display: flex; flex-direction: column; gap: 8px; }
.footer-contact-line { display: block; font-size: .92rem; line-height: 1.5; }
.footer-contact-note {
  margin-top: 6px;
  font-size: .85rem;
  line-height: 1.7;
  border-left: 3px solid var(--color-gold);
  padding-left: 14px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  position: relative;
  z-index: 1;
}
.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  text-align: center;
}
.footer-copy, .footer-trust { font-size: .85rem; }
.footer-copy [data-year] { font-family: var(--font-data); min-width: 4ch; display: inline-block; }
.footer-watermark {
  display: block;
  text-align: center;
  font-family: var(--font-data);
  font-size: clamp(3rem, 11vw, 8.5rem);
  font-weight: 800;
  line-height: .7;
  letter-spacing: .14em;
  color: rgba(255,255,255,.022);
  user-select: none;
  margin-top: -8px;
  padding-bottom: 6px;
  pointer-events: none;
}

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .footer-bottom-inner { flex-direction: row; text-align: left; }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.6fr; gap: 48px; }
}

@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .nav-toggle { display: flex; }
  .site-nav {
    display: block;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    background: rgba(8,26,41,.98);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 12px 16px 20px;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .site-nav[data-open="true"] {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-list { flex-direction: column; gap: 2px; }
  .nav-item { width: 100%; }
  .nav-link { padding: 12px 14px; font-size: 1rem; border-radius: var(--radius-sm); }
  .nav-link[aria-current="page"] {
    background: rgba(255,107,53,.16);
    box-shadow: inset 2px 0 0 var(--color-orange);
  }
  .nav-cta { display: block; width: 100%; margin: 10px 0 0; text-align: center; }
}

@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .footer-grid { gap: 32px; padding-top: 56px; }
}

@media (scripting: enabled) {
  [data-reveal] {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
    transition: opacity .6s ease-out, transform .6s ease-out;
  }
  [data-reveal].is-revealed {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .footer-live-dot::after { animation: none; }
  .scroll-progress { display: none; }
}