:root {
  --deep-blue: #0A1B3A;
  --corpus-blue: #14325C;
  --energy-orange: #FF6B35;
  --signal-green: #1ED760;
  --paper-white: #F5F2ED;
  --grey-slate: #6B7A8F;
  --amber-flash: #FFC107;
  --deep-ink: #121016;
  --rail-width: 300px;
  --topbar-height: 64px;
  --font-display: "DIN Condensed", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --border-dim: rgba(245, 242, 237, 0.14);
  --ease-out: cubic-bezier(0.22, 0.8, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--deep-blue);
  color: var(--paper-white);
  line-height: 1.65;
  min-height: 100vh;
  padding: var(--topbar-height) 0 0 0;
}

img, svg, video { max-width: 100%; display: inline-block; }

a { color: var(--signal-green); text-decoration: none; transition: color 0.2s var(--ease-out), background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out); }
a:hover { color: var(--energy-orange); }

ul, ol { list-style: none; }

button, input, select, textarea { font: inherit; color: inherit; }

button { cursor: pointer; border: 0; background: none; }

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

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.skip-link { position: fixed; top: 12px; left: -9999px; z-index: 9999; background: var(--energy-orange); color: var(--deep-ink); font-weight: 800; font-family: var(--font-display); padding: 12px 20px; box-shadow: 6px 6px 0 rgba(30, 215, 96, 0.3); }
.skip-link:focus { left: 12px; }

.site-header { position: fixed; inset: 0 auto 0 0; width: 100%; z-index: 1000; pointer-events: none; }

.brand-rail {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: min(320px, 86vw);
  z-index: 1000;
  background: var(--deep-ink);
  border-right: 1px solid var(--border-dim);
  display: flex;
  flex-direction: column;
  padding: calc(var(--topbar-height) + 26px) 24px 24px;
  transform: translateX(-100%);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  pointer-events: auto;
  overflow-y: auto;
}

.site-header[data-open] .brand-rail { transform: translateX(0); box-shadow: 16px 0 50px rgba(0, 0, 0, 0.45); }

.brand-mark { display: inline-flex; align-items: center; gap: 14px; color: var(--paper-white); }
.brand-mark:hover { color: var(--paper-white); }

.brand-glyph {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--energy-orange);
  color: var(--deep-ink);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 12% 100%);
  transition: transform 0.2s var(--ease-out);
}
.brand-mark:hover .brand-glyph { transform: rotate(-6deg) translateY(-2px); }

.brand-text { font-family: var(--font-display); font-size: 24px; font-weight: 900; letter-spacing: 0.04em; }
.brand-text strong { color: var(--energy-orange); font-weight: 900; }

.rail-emblem { margin: 46px 0 22px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.3em; color: var(--energy-orange); text-transform: uppercase; writing-mode: vertical-rl; max-height: 120px; opacity: 0.7; }

.rail-nav-label { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.28em; color: var(--signal-green); text-transform: uppercase; margin-bottom: 10px; }

.rail-nav ul { display: flex; flex-direction: column; }

.rail-nav a {
  position: relative;
  display: block;
  padding: 14px 4px 12px;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  color: var(--paper-white);
  border-bottom: 1px solid rgba(245, 242, 237, 0.08);
  transition: color 0.2s var(--ease-out), padding-left 0.2s var(--ease-out);
}
.rail-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 3px;
  width: 0;
  background: var(--energy-orange);
  transition: width 0.25s var(--ease-out);
}
.rail-nav a:hover { color: var(--energy-orange); padding-left: 12px; }
.rail-nav a[aria-current="page"] { color: var(--energy-orange); }
.rail-nav a[aria-current="page"]::after { width: 44px; }

.rail-match { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--border-dim); }

.match-round-label, .match-update { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--grey-slate); }

.match-round-value { display: block; margin: 6px 0 4px; font-family: var(--font-display); font-size: 42px; font-weight: 900; line-height: 1; color: var(--paper-white); }
.match-round-value::before { content: ""; display: inline-block; width: 10px; height: 10px; background: var(--signal-green); margin-right: 10px; vertical-align: 8px; }

.match-update { color: var(--signal-green); }

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  z-index: 1100;
  background: rgba(10, 27, 58, 0.96);
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  pointer-events: auto;
  backdrop-filter: blur(8px);
}

.mobile-menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--border-dim);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}
.mobile-menu-toggle:hover { border-color: var(--energy-orange); background: rgba(255, 107, 53, 0.08); }
.mobile-menu-toggle[aria-expanded="true"] .toggle-bar:first-child { transform: translateY(8px) rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) { opacity: 0; }
.mobile-menu-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.toggle-bar { width: 100%; height: 2px; background: var(--paper-white); transition: transform 0.25s var(--ease-out), opacity 0.2s; }

.topbar-tagline { margin-right: auto; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--signal-green); }

.topbar-search {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--paper-white);
  border: 1px solid var(--border-dim);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.topbar-search:hover { color: var(--deep-ink); background: var(--energy-orange); border-color: var(--energy-orange); }
.topbar-search svg { width: 18px; height: 18px; }

.scroll-progress { position: absolute; left: 0; bottom: -1px; height: 3px; width: 0; background: linear-gradient(90deg, var(--energy-orange), var(--signal-green)); z-index: 2; pointer-events: none; }

.site-footer { background: var(--deep-ink); border-top: 1px solid var(--border-dim); position: relative; overflow: hidden; }
.site-footer::before { content: "EMC"; position: absolute; right: -0.06em; bottom: 0.12em; font-family: var(--font-display); font-weight: 900; font-size: clamp(140px, 22vw, 340px); line-height: 0.8; color: rgba(255, 107, 53, 0.05); pointer-events: none; }

.footer-banner { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; padding: clamp(28px, 6vw, 72px) 6vw 30px; border-bottom: 1px solid var(--border-dim); }

.footer-slogan { font-family: var(--font-display); font-weight: 900; font-size: clamp(36px, 7vw, 72px); line-height: 0.92; letter-spacing: 0.02em; text-transform: uppercase; color: var(--paper-white); }
.footer-slogan::after { content: " //"; color: var(--signal-green); }

.footer-cta { display: inline-block; background: var(--energy-orange); color: var(--deep-ink); font-family: var(--font-display); font-weight: 800; font-size: 18px; padding: 16px 28px; box-shadow: 6px 6px 0 rgba(30, 215, 96, 0.25); transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s; }
.footer-cta:hover { color: var(--deep-ink); background: var(--signal-green); transform: translate(-2px, -2px); box-shadow: 10px 10px 0 rgba(255, 107, 53, 0.25); }

.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; padding: 48px 6vw 56px; position: relative; z-index: 1; max-width: 1480px; margin-inline: auto; }

.footer-brand-link { display: inline-flex; font-family: var(--font-display); font-weight: 900; font-size: 30px; color: var(--paper-white); margin-bottom: 18px; }
.footer-brand-link strong { color: var(--energy-orange); }

.footer-brand-desc { color: var(--grey-slate); font-size: 15px; max-width: 38em; margin-bottom: 18px; }

.footer-trust { color: var(--grey-slate); font-size: 13px; line-height: 1.7; border-left: 4px solid var(--energy-orange); padding-left: 14px; max-width: 46em; }

.footer-heading { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--signal-green); margin-bottom: 18px; font-weight: 500; }

.footer-links ul { display: grid; gap: 12px; }
.footer-links a { color: var(--paper-white); font-size: 15px; padding: 2px 0; border-bottom: 1px solid transparent; }
.footer-links a:hover { color: var(--energy-orange); border-color: var(--energy-orange); }

.footer-contact-list li { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; border-bottom: 1px solid rgba(245, 242, 237, 0.08); padding: 10px 0; font-size: 14px; }
.footer-contact-list li span:first-child { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; color: var(--grey-slate); text-transform: uppercase; }
.footer-contact-list li span:last-child { color: var(--paper-white); font-family: var(--font-mono); text-align: right; }

.footer-note { margin-top: 14px; font-size: 13px; color: var(--grey-slate); line-height: 1.7; }

.footer-bottom { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; padding: 22px 6vw; border-top: 1px solid var(--border-dim); background: rgba(4, 10, 20, 0.5); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--grey-slate); position: relative; z-index: 1; }
.footer-relogin a { color: var(--energy-orange); font-weight: 700; }
.footer-relogin a:hover { color: var(--signal-green); }

.back-to-top {
  position: fixed;
  right: clamp(16px, 3vw, 36px);
  bottom: clamp(16px, 3vw, 36px);
  z-index: 900;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  background: var(--energy-orange);
  color: var(--deep-ink);
  border-radius: 50%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s, background 0.2s;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--signal-green); color: var(--deep-ink); }

.container { width: 100%; max-width: 1220px; margin-inline: auto; padding-inline: clamp(20px, 4vw, 48px); }

.section { padding-block: clamp(56px, 9vw, 116px); }

.section-kicker { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--signal-green); margin-bottom: 12px; }
.section-kicker::before { content: ""; width: 26px; height: 3px; background: var(--energy-orange); display: inline-block; }

.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(16px, 2.4vw, 28px); }

.card { position: relative; background: var(--corpus-blue); border: 1px solid var(--border-dim); padding: 26px; box-shadow: 0 0 0 rgba(30, 215, 96, 0); transition: transform 0.25s var(--ease-out), border-color 0.25s, box-shadow 0.25s; }
.card::before { content: ""; position: absolute; top: 0; left: 0; width: 4px; background: var(--energy-orange); height: 100%; transform: scaleY(0.45); transform-origin: bottom; transition: transform 0.25s var(--ease-out); }
.card:hover { transform: translateY(-4px); border-color: rgba(30, 215, 96, 0.4); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25); }
.card:hover::before { transform: scaleY(1); }

.btn { display: inline-flex; align-items: center; gap: 10px; align-self: flex-start; font-family: var(--font-display); font-weight: 900; font-size: 16px; letter-spacing: 0.04em; padding: 14px 24px; border: 2px solid transparent; transition: all 0.2s var(--ease-out); }
.btn-primary { background: var(--energy-orange); color: var(--deep-ink); box-shadow: 6px 6px 0 rgba(30, 215, 96, 0.25); }
.btn-primary:hover { background: var(--signal-green); color: var(--deep-ink); transform: translate(-2px, -2px); box-shadow: 10px 10px 0 rgba(255, 107, 53, 0.25); }
.btn-ghost { border-color: var(--paper-white); color: var(--paper-white); background: transparent; }
.btn-ghost:hover { border-color: var(--energy-orange); color: var(--energy-orange); background: rgba(255, 107, 53, 0.06); }

.tag { display: inline-flex; align-items: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; padding: 5px 10px; background: rgba(30, 215, 96, 0.1); border: 1px solid rgba(30, 215, 96, 0.35); color: var(--signal-green); }
.tag[data-tone="orange"] { background: rgba(255, 107, 53, 0.1); border-color: rgba(255, 107, 53, 0.4); color: var(--energy-orange); }
.tag[data-tone="amber"] { background: rgba(255, 193, 7, 0.1); border-color: rgba(255, 193, 7, 0.4); color: var(--amber-flash); }

.chip { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border: 1px solid var(--border-dim); color: var(--paper-white); font-size: 14px; background: var(--corpus-blue); transition: all 0.2s; }
.chip:hover { border-color: var(--energy-orange); color: var(--energy-orange); }
.chip[aria-pressed="true"] { background: var(--energy-orange); color: var(--deep-ink); border-color: var(--energy-orange); }

.badge-status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--paper-white); }
.badge-status::before { content: ""; width: 9px; height: 9px; background: var(--grey-slate); border-radius: 50%; }
.badge-status[data-status="live"]::before { background: var(--signal-green); box-shadow: 0 0 0 4px rgba(30, 215, 96, 0.2); animation: pulse-ring 2s infinite; }
.badge-status[data-status="warning"]::before { background: var(--amber-flash); }
.badge-status[data-status="danger"]::before { background: var(--energy-orange); }

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(30, 215, 96, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(30, 215, 96, 0); }
  100% { box-shadow: 0 0 0 0 rgba(30, 215, 96, 0); }
}

.stat { display: block; background: rgba(10, 27, 58, 0.75); border: 1px solid var(--border-dim); padding: 22px; }
.stat-label { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--grey-slate); margin-bottom: 10px; }
.stat-value { display: block; font-family: var(--font-mono); font-weight: 800; font-size: clamp(32px, 5vw, 52px); line-height: 1; color: var(--signal-green); word-break: break-word; }
.stat-value small { color: var(--energy-orange); font-size: 0.5em; margin-left: 6px; }

.label-mono { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--grey-slate); }

.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--grey-slate); margin-bottom: 28px; }
.breadcrumb a { color: var(--signal-green); }
.breadcrumb li + li::before { content: "/"; margin-right: 10px; color: var(--grey-slate); }

.image-frame { position: relative; display: block; overflow: hidden; aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--corpus-blue), var(--deep-blue)); border: 1px solid var(--border-dim); }
.image-frame::after { content: "EMC · IMAGE"; position: absolute; right: 12px; bottom: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em; color: var(--energy-orange); opacity: 0.85; pointer-events: none; }
.image-frame[data-format="portrait"] { aspect-ratio: 3 / 4; }
.image-frame[data-format="ultra"] { aspect-ratio: 21 / 9; }
.image-frame[data-accent="green"] { border-top: 4px solid var(--signal-green); }
.image-frame[data-accent="orange"] { border-top: 4px solid var(--energy-orange); }
.image-frame img, .image-frame source, .image-frame picture { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out); }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (min-width: 768px) {
  :root { --topbar-height: 52px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .brand-rail { padding-top: 28px; }
}

@media (min-width: 1024px) {
  :root { --rail-width: 300px; --topbar-height: 52px; }
  body { padding: var(--topbar-height) 0 0 var(--rail-width); }
  .site-header { width: var(--rail-width); }
  .brand-rail { position: fixed; top: 0; bottom: 0; left: 0; width: var(--rail-width); padding: 32px 26px 26px; transform: none; z-index: 1010; }
  .site-header[data-open] .brand-rail { transform: none; box-shadow: none; }
  .topbar { left: var(--rail-width); right: 0; z-index: 1110; padding: 0 32px; }
  .mobile-menu-toggle { display: none; }
  .topbar-tagline { margin-right: 0; margin-left: auto; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 48px; padding: 64px 6vw 72px; }
  .footer-bottom { padding: 24px 6vw; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .back-to-top { transition: none; transform: none; }
}