:root {
  color-scheme: dark;
  --bg: oklch(15% 0.035 255);
  --bg-deep: oklch(11% 0.032 260);
  --surface: oklch(24% 0.04 255 / 0.42);
  --surface-hover: oklch(31% 0.05 255 / 0.52);
  --ink: oklch(97% 0.008 240);
  --muted: oklch(74% 0.028 245);
  --line: oklch(45% 0.04 252 / 0.58);
  --primary: oklch(65% 0.16 238);
  --finance: oklch(70% 0.13 225);
  --payout: oklch(72% 0.13 158);
  --risk: oklch(72% 0.14 28);
  --vip: oklch(75% 0.13 292);
  --crm: oklch(76% 0.12 78);
  --develop: oklch(74% 0.13 205);
  --contracts: oklch(76% 0.13 336);
  --shadow: 0 22px 58px oklch(4% 0.02 255 / 0.38);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 16px;
  --font-tech: "Chakra Petch", "Noto Sans TC", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", ui-sans-serif, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg-deep);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 0%, oklch(28% 0.055 250), transparent 34rem),
    radial-gradient(circle at 18% 26%, oklch(28% 0.075 230 / 0.72), transparent 28rem),
    linear-gradient(135deg, oklch(18% 0.04 255), var(--bg-deep));
  font-family: var(--font-body);
  letter-spacing: 0;
  font-feature-settings: "pnum" 1, "kern" 1;
}

button {
  font: inherit;
}

.tech-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.tech-background svg {
  width: 100%;
  height: 100%;
  opacity: 0.34;
}

.animated-path {
  stroke-dasharray: 100 900;
  stroke-dashoffset: 1000;
  animation: flow-line 8s linear infinite;
}

.path-delay-1 {
  animation-delay: -1s;
}

.path-delay-2 {
  animation-delay: -3s;
}

.path-delay-3 {
  animation-delay: -5s;
}

.path-delay-4 {
  animation-delay: -7s;
}

.top-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(18px, 2.4vw, 28px);
  pointer-events: none;
}

.brand-lockup,
.portal-badge {
  pointer-events: auto;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 34px;
  border-radius: 10px;
  background: color-mix(in oklch, var(--primary) 78%, oklch(35% 0.08 252));
  color: var(--ink);
  font-family: var(--font-tech);
  font-size: 0.98rem;
  font-weight: 800;
  box-shadow: 0 0 28px color-mix(in oklch, var(--primary) 28%, transparent);
}

.brand-name {
  color: oklch(90% 0.018 245);
  font-family: var(--font-tech);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.portal-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid oklch(44% 0.04 252 / 0.7);
  border-radius: 999px;
  background: oklch(24% 0.04 255 / 0.48);
  color: var(--muted);
  font-family: var(--font-tech);
  font-size: 0.82rem;
  font-weight: 600;
  backdrop-filter: blur(14px);
}

.badge-orb {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 35% 30%, oklch(96% 0.01 230), transparent 28%),
    linear-gradient(145deg, var(--primary), oklch(55% 0.16 285));
  box-shadow: 0 0 18px color-mix(in oklch, var(--primary) 44%, transparent);
}

.portal-shell {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  min-height: 100vh;
  width: min(1320px, 100%);
  margin: 0 auto;
  padding: clamp(96px, 11vh, 132px) clamp(18px, 3vw, 34px) 76px;
}

.hero {
  display: grid;
  justify-items: center;
  gap: 28px;
  margin-bottom: clamp(32px, 5vw, 58px);
  text-align: center;
}

.hub-card {
  position: relative;
  min-width: min(100%, 540px);
  padding: clamp(26px, 3vw, 34px) clamp(34px, 6vw, 66px);
  border: 1px solid color-mix(in oklch, var(--primary) 34%, var(--line));
  border-radius: 28px;
  background: oklch(27% 0.046 255 / 0.52);
  box-shadow:
    0 0 70px color-mix(in oklch, var(--primary) 15%, transparent),
    var(--shadow);
  backdrop-filter: blur(16px);
  isolation: isolate;
}

.hub-card::before {
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in oklch, var(--primary) 20%, transparent), transparent 58%),
    linear-gradient(145deg, color-mix(in oklch, var(--primary) 18%, transparent), transparent 54%);
  content: "";
  opacity: 0.9;
}

.hub-circuit {
  position: absolute;
  inset: -88px auto auto 50%;
  z-index: -1;
  width: min(620px, 120vw);
  height: 400px;
  color: color-mix(in oklch, var(--primary) 72%, transparent);
  opacity: 0.24;
  transform: translateX(-50%);
  pointer-events: none;
}

.hub-circuit svg {
  width: 100%;
  height: 100%;
}

.node-pulse {
  fill: currentColor;
  animation: pulse-glow 3s infinite ease-in-out;
}

.hub-card h1 {
  margin: 0 0 8px;
  color: var(--ink);
  font-family: var(--font-tech);
  font-size: clamp(2.35rem, 1.8rem + 2.4vw, 4.15rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.08;
  text-shadow: 0 0 22px color-mix(in oklch, var(--primary) 24%, transparent);
}

.hub-subtitle {
  margin: 0;
  color: color-mix(in oklch, var(--primary) 74%, var(--muted));
  font-family: var(--font-tech);
  font-size: clamp(0.74rem, 0.7rem + 0.18vw, 0.92rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 0.92rem + 0.28vw, 1.12rem);
  font-weight: 600;
  line-height: 1.8;
}

.system-stage {
  width: 100%;
  perspective: 1200px;
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: clamp(12px, 1.4vw, 20px);
}

.system-card {
  --accent: var(--finance);
  --mx: 50%;
  --my: 50%;
  position: relative;
  z-index: 0;
  display: flex;
  min-height: 300px;
  padding: clamp(16px, 1.6vw, 22px);
  flex-direction: column;
  overflow: hidden;
  border: 1px solid color-mix(in oklch, var(--accent) 18%, var(--line));
  border-radius: 22px;
  background:
    radial-gradient(circle at var(--mx) var(--my), color-mix(in oklch, var(--accent) 16%, transparent), transparent 35%),
    color-mix(in oklch, var(--surface) 88%, transparent);
  box-shadow: var(--shadow);
  color: var(--ink);
  opacity: 0;
  translate: 0 12px;
  backdrop-filter: blur(14px);
  isolation: isolate;
  will-change: transform;
  animation: card-in 760ms var(--ease-out) forwards;
  animation-delay: var(--delay);
  transition:
    background 360ms var(--ease-out),
    border-color 320ms var(--ease-out),
    box-shadow 360ms var(--ease-out),
    transform 360ms var(--ease-out);
}

.system-card::before {
  position: absolute;
  inset: -1px;
  z-index: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at var(--mx) var(--my), color-mix(in oklch, var(--accent) 30%, transparent), transparent 27%),
    linear-gradient(115deg, transparent 18%, oklch(100% 0.004 235 / 0.22) 42%, transparent 58%);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-18%);
  transition:
    opacity 420ms var(--ease-out),
    transform 620ms var(--ease-out);
}

.system-card:hover,
.system-card.is-hovered,
.system-card:focus-visible {
  z-index: 3;
  border-color: color-mix(in oklch, var(--accent) 70%, var(--line));
  background:
    radial-gradient(circle at var(--mx) var(--my), color-mix(in oklch, var(--accent) 22%, transparent), transparent 38%),
    color-mix(in oklch, var(--surface-hover) 86%, transparent);
  box-shadow:
    0 28px 58px oklch(4% 0.02 255 / 0.48),
    0 0 34px color-mix(in oklch, var(--accent) 22%, transparent);
  transform:
    translateY(-8px)
    scale(1.035);
  outline: none;
}

.system-card:hover::before,
.system-card.is-hovered::before,
.system-card:focus-visible::before {
  opacity: 1;
  transform: translateX(18%);
}

.system-card.is-launching {
  transform: translateY(-2px) scale(0.985);
}

.system-card.payout {
  --accent: var(--payout);
}

.system-card.risk {
  --accent: var(--risk);
}

.system-card.vip {
  --accent: var(--vip);
}

.system-card.crm {
  --accent: var(--crm);
}

.system-card.develop {
  --accent: var(--develop);
}

.system-card.contracts {
  --accent: var(--contracts);
}

.icon-box,
.card-content,
.entry-button {
  position: relative;
  z-index: 1;
}

.icon-box {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 22px;
  border-radius: 16px;
  background: color-mix(in oklch, var(--accent) 13%, transparent);
  color: var(--accent);
}

.icon-box svg {
  width: 34px;
  height: 34px;
}

.card-content {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.card-content strong {
  color: var(--ink);
  font-family: var(--font-tech);
  font-size: clamp(1.08rem, 0.96rem + 0.55vw, 1.42rem);
  font-weight: 800;
  line-height: 1.25;
  word-break: keep-all;
}

.card-content span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.72;
}

.entry-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  margin-top: auto;
  padding: 0 16px;
  border: 0;
  border-radius: 14px;
  background: oklch(22% 0.038 255 / 0.88);
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font-tech);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0;
  transition:
    background 320ms var(--ease-out),
    color 320ms var(--ease-out),
    transform 320ms var(--ease-out);
}

.entry-button svg {
  width: 18px;
  height: 18px;
  transition: transform 320ms var(--ease-out);
}

.system-card:hover .entry-button,
.system-card.is-hovered .entry-button,
.entry-button:focus-visible {
  background: color-mix(in oklch, var(--accent) 76%, oklch(26% 0.04 255));
  color: oklch(99% 0.004 235);
  outline: none;
}

.system-card:hover .entry-button svg,
.system-card.is-hovered .entry-button svg,
.entry-button:focus-visible svg {
  transform: translateX(3px);
}

.entry-button:active {
  transform: translateY(2px);
}

.entry-button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.portal-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 0 18px 32px;
  color: oklch(58% 0.028 245);
  font-family: var(--font-tech);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.portal-footer i {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: oklch(40% 0.035 252);
}

@keyframes flow-line {
  0% {
    opacity: 0;
    stroke-dashoffset: 1000;
  }

  20%,
  80% {
    opacity: 0.55;
  }

  100% {
    opacity: 0;
    stroke-dashoffset: 0;
  }
}

@keyframes pulse-glow {
  0%,
  100% {
    opacity: 0.32;
  }

  50% {
    opacity: 0.82;
  }
}

@keyframes card-in {
  to {
    opacity: 1;
    translate: 0 0;
  }
}

@media (max-width: 1180px) {
  .system-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .system-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .top-nav {
    position: absolute;
  }

  .portal-badge {
    display: none;
  }

  .portal-shell {
    padding-top: 96px;
  }

  .hub-card {
    min-width: 0;
    width: 100%;
  }

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

  .system-card {
    min-height: 292px;
  }

  .portal-footer {
    flex-wrap: wrap;
    row-gap: 10px;
  }
}

@media (max-width: 520px) {
  .system-grid {
    grid-template-columns: 1fr;
  }

  .system-card {
    min-height: 252px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}