:root {
  --bg-deep: #0B1026;
  --bg-cave: #121A3A;
  --violet: #7B2FBE;
  --cyan: #00E5FF;
  --gold: #F5B301;
  --ink: #E8F1FF;
  --mist: #9FB3D9;
  --ok: #00C48C;
  --warn: #FF8C42;
  --danger: #FF4D6D;
  --font-head: "DIN Alternate","Bahnschrift","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body: "Inter","Noto Sans SC","Microsoft YaHei",sans-serif;
  --container: 1240px;
  --radius: 16px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --header-offset: 124px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-offset);
}

body {
  min-height: 100vh;
  background:
    radial-gradient(1100px 500px at 88% -8%, rgba(123,47,190,.4), transparent 64%),
    radial-gradient(800px 420px at -8% 18%, rgba(0,229,255,.14), transparent 55%),
    var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  overflow-x: hidden;
  overflow-x: clip;
}

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

a { color: var(--cyan); text-decoration: none; }

a:hover { text-decoration: underline; }

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

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

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

address { font-style: normal; }

::selection { background: rgba(0,229,255,.3); color: var(--ink); }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

.container {
  width: min(100%, var(--container));
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 18px;
  border-radius: 6px;
  background: var(--cyan);
  color: #04121F;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,229,255,.35);
  transform: translateY(-160%);
  transition: transform .2s var(--ease);
}

.skip-link:focus { transform: translateY(0); text-decoration: none; }

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

.section { padding-block: clamp(48px, 8vmin, 96px); }

.section-tight { padding-block: clamp(28px, 5vmin, 52px); }

.section-head { max-width: 760px; margin-bottom: clamp(28px, 5vw, 48px); }

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vmin, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--ink);
}

.section-sub {
  margin-top: 10px;
  font-size: clamp(.95rem, 1.2vmin, 1.1rem);
  color: var(--mist);
}

.lead {
  font-size: clamp(1.05rem, 1.5vmin, 1.22rem);
  color: var(--mist);
  line-height: 1.8;
}

.text-cyan { color: var(--cyan); }

.text-gold { color: var(--gold); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  padding: .72em 1.3em;
  border: 1px solid transparent;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.btn:hover { transform: translateY(-2px) scale(1.01); text-decoration: none; }

.btn:active { transform: translateY(0) scale(1); }

.btn-primary {
  background: linear-gradient(135deg, var(--violet), #5B21B6);
  color: #fff;
  box-shadow: 0 8px 24px rgba(123,47,190,.32);
}

.btn-primary:hover { box-shadow: 0 12px 32px rgba(123,47,190,.45); }

.btn-ghost { border-color: rgba(0,229,255,.45); color: var(--cyan); }

.btn-ghost:hover { background: rgba(0,229,255,.08); box-shadow: 0 0 20px rgba(0,229,255,.14); }

.btn-gold { background: var(--gold); color: var(--bg-deep); box-shadow: 0 6px 22px rgba(245,179,1,.26); }

.btn-gold:hover { color: var(--bg-deep); box-shadow: 0 10px 28px rgba(245,179,1,.38); }

.btn-sm { padding: .42em .95em; font-size: .84rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background:
    linear-gradient(180deg, rgba(11,16,38,.98), rgba(11,16,38,.94)),
    radial-gradient(620px 160px at 82% 0%, rgba(123,47,190,.42), transparent 72%);
  border-bottom: 1px solid rgba(159,179,217,.18);
}

.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 30%, var(--violet) 72%, var(--cyan) 100%);
  opacity: .8;
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 232px;
  height: 100%;
  background: linear-gradient(115deg, transparent 32%, rgba(0,229,255,.1) 44%, rgba(123,47,190,.22) 62%, transparent 78%);
  pointer-events: none;
}

.topbar,
.header-main { position: relative; z-index: 3; }

.topbar {
  background: rgba(7,10,25,.7);
  border-bottom: 1px solid rgba(159,179,217,.12);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 36px;
  font-size: .78rem;
  letter-spacing: .03em;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(0,196,140,.55);
  animation: status-pulse 2.4s infinite;
}

@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,196,140,.55); }
  70% { box-shadow: 0 0 0 8px rgba(0,196,140,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,196,140,0); }
}

.topbar-note {
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 64ch;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover { text-decoration: none; }

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  clip-path: polygon(12% 0, 100% 0, 88% 100%, 0 100%);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  box-shadow: 0 0 18px rgba(0,229,255,.35);
  transform: skewX(-4deg);
}

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

.brand-name {
  font-family: var(--font-head);
  font-size: 1.32rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}

.brand-sub {
  margin-top: 4px;
  font-size: .62rem;
  letter-spacing: .18em;
  color: var(--cyan);
  font-weight: 700;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: .45em;
  padding: 10px 12px;
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .02em;
  color: var(--mist);
  text-decoration: none;
  border-radius: 4px;
  transition: color .2s, background .2s;
}

.nav-link::before {
  counter-increment: nav;
  content: counter(nav, decimal-leading-zero);
  font-family: var(--font-head);
  font-size: .62rem;
  font-weight: 800;
  color: var(--cyan);
  opacity: .75;
}

.nav-link:hover { color: var(--ink); background: rgba(0,229,255,.06); text-decoration: none; }

.nav-link:hover::before { color: var(--gold); }

.nav-link[aria-current="page"] { color: var(--cyan); }

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.nav-toggle {
  display: none;
  position: relative;
  z-index: 240;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(159,179,217,.3);
  border-radius: 8px;
  background: rgba(18,26,58,.65);
  color: var(--ink);
  transition: border-color .2s;
}

.nav-toggle:hover { border-color: var(--cyan); }

.nav-toggle-box { position: relative; display: block; width: 20px; height: 14px; }

.nav-toggle-line {
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: top .28s var(--ease), bottom .28s var(--ease), transform .28s var(--ease), opacity .2s;
}

.nav-toggle-line:nth-child(1) { top: 0; }

.nav-toggle-line:nth-child(2) { bottom: 0; }

.nav-toggle[data-open] .nav-toggle-line:nth-child(1) { top: 6px; transform: rotate(45deg); }

.nav-toggle[data-open] .nav-toggle-line:nth-child(2) { bottom: 6px; transform: rotate(-45deg); }

.nav-cta { flex-shrink: 0; }

.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vmin, 96px);
  overflow: clip;
  background:
    radial-gradient(900px 420px at 82% 115%, rgba(123,47,190,.3), transparent 66%),
    linear-gradient(180deg, var(--bg-deep), #090D1F);
}

.site-footer::before {
  content: "HG";
  position: absolute;
  right: -2%;
  bottom: 10%;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(120px, 20vw, 260px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(159,179,217,.12);
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--violet) 45%, var(--cyan));
  opacity: .9;
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(28px, 5vw, 56px);
  padding-block: clamp(48px, 7vmin, 80px) 44px;
}

.footer-brand-col,
.footer-nav-col,
.footer-aside-col,
.footer-contact-col { min-width: 0; }

.footer-brand {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vmin, 2rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--ink);
}

.footer-slogan {
  display: block;
  margin-top: 6px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: .14em;
}

.footer-trust {
  margin-top: 18px;
  max-width: 44ch;
  padding-left: 14px;
  border-left: 2px solid rgba(245,179,1,.6);
  font-size: .88rem;
  color: var(--mist);
}

.footer-heading {
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0,229,255,.25);
  font-family: var(--font-head);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
}

.footer-nav { display: grid; gap: 10px; }

.footer-nav a {
  display: inline-block;
  color: var(--mist);
  text-decoration: none;
  transition: color .2s, transform .2s;
}

.footer-nav a:hover { color: var(--cyan); transform: translateX(3px); text-decoration: none; }

.footer-contact { font-size: .91rem; line-height: 1.9; color: var(--mist); }

.footer-base {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(159,179,217,.14);
}

.footer-base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 22px;
  min-height: 54px;
  font-size: .82rem;
  color: var(--mist);
}

.icp { color: var(--mist); letter-spacing: .06em; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 14px 0;
  font-size: .85rem;
  color: var(--mist);
  list-style: none;
}

.breadcrumb li { display: flex; align-items: center; }

.breadcrumb li + li::before {
  content: "/";
  margin: 0 .9em;
  color: rgba(159,179,217,.35);
}

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

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

.breadcrumb [aria-current="page"] { color: var(--cyan); font-weight: 700; }

.card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(159,179,217,.16);
  border-radius: var(--radius);
  background: var(--bg-cave);
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}

.card:hover {
  transform: translateY(-3px) scale(1.01);
  border-color: rgba(0,229,255,.4);
  box-shadow: 0 16px 40px rgba(0,229,255,.12);
}

.card-glass {
  background: rgba(18,26,58,.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-color: rgba(232,241,255,.12);
}

.card-accent { border-top: 3px solid var(--cyan); }

.card-violet { border-top: 3px solid var(--violet); }

.card-gold { border-top: 3px solid var(--gold); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: .32em .75em;
  border: 1px solid rgba(0,229,255,.28);
  border-radius: 999px;
  background: rgba(123,47,190,.18);
  color: var(--cyan);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
}

.tag-gold { border-color: rgba(245,179,1,.34); background: rgba(245,179,1,.1); color: var(--gold); }

.tag-green { border-color: rgba(0,196,140,.34); background: rgba(0,196,140,.1); color: var(--ok); }

.tag-warn { border-color: rgba(255,140,66,.34); background: rgba(255,140,66,.1); color: var(--warn); }

.notice-bar {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid rgba(255,140,66,.4);
  border-left: 3px solid var(--warn);
  border-radius: 8px;
  background: rgba(255,140,66,.08);
  color: var(--ink);
  font-size: .92rem;
}

.notice-bar::before {
  content: "◈";
  color: var(--warn);
  font-family: var(--font-head);
}

hr.divider {
  height: 1px;
  border: 0;
  margin: clamp(28px, 5vw, 56px) 0;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,.35), transparent);
}

.grid { display: grid; gap: clamp(18px, 3vw, 28px); }

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(159,179,217,.16);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(18,26,58,.9), rgba(123,47,190,.28)),
    var(--bg-deep);
}

.media-frame img { width: 100%; height: 100%; object-fit: cover; }

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(0,229,255,.1) 48%, transparent 70%);
  pointer-events: none;
}

.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame--wide { aspect-ratio: 21 / 9; }

.media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px 16px 12px;
  background: linear-gradient(transparent, rgba(11,16,38,.82));
  color: var(--ink);
  font-size: .84rem;
  font-weight: 600;
}

.stat { display: grid; gap: 4px; }

.data-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-head);
}

.data-value {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vmin, 2.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--cyan);
}

.data-label { font-size: .86rem; color: var(--mist); }

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.quick-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 3vw, 26px);
  border: 1px solid rgba(232,241,255,.13);
  border-radius: var(--radius);
  background: rgba(18,26,58,.5);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}

.quick-card:hover {
  transform: translateY(-3px) scale(1.01);
  border-color: rgba(0,229,255,.42);
  box-shadow: 0 14px 34px rgba(0,229,255,.1);
}

.quick-card .btn { align-self: flex-start; margin-top: auto; }

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

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

@media (max-width: 1023px) {
  .topbar-inner { justify-content: center; }
  .topbar-note { display: none; }

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

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 220;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 26px;
    width: min(328px, 84vw);
    height: 100vh;
    height: 100dvh;
    padding: calc(84px + env(safe-area-inset-top)) clamp(20px, 5vw, 28px) 32px;
    background:
      linear-gradient(160deg, rgba(18,26,58,.97), rgba(11,16,38,.98)),
      radial-gradient(300px 200px at 100% 0%, rgba(123,47,190,.55), transparent 72%);
    border-left: 1px solid rgba(0,229,255,.32);
    box-shadow: -24px 0 54px rgba(0,0,0,.5);
    transform: translateX(103%);
    transition: transform .34s var(--ease);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .main-nav[data-open] { transform: translateX(0); }

  .main-nav-list { display: grid; gap: 2px; }

  .nav-link {
    display: flex;
    align-items: center;
    padding: 13px 10px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(159,179,217,.12);
  }

  .nav-link[aria-current="page"]::after { left: 10px; right: 10px; bottom: -1px; }

  .nav-cta { margin-top: auto; justify-content: center; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .footer-contact-col { grid-column: 1 / -1; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .quick-grid { grid-template-columns: 1fr; }
}

@media (max-width: 639px) {
  .header-inner { min-height: 64px; }
  .brand-mark { width: 34px; height: 34px; font-size: 1rem; }
  .brand-name { font-size: 1.12rem; }
  .brand-sub { letter-spacing: .1em; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-contact-col { grid-column: auto; }
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .status-dot { animation: none; }
  html.js [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn:hover, .card:hover, .quick-card:hover, .footer-nav a:hover { transform: none !important; }
}