:root {
  --bg: #06080d;
  --bg-2: #0b1018;
  --panel: #101826;
  --line: rgba(184, 214, 240, 0.12);
  --text: #e8eef6;
  --muted: #93a3b8;
  --cyan: #3ee0ff;
  --gold: #d4a017;
  --cyan-dim: rgba(62, 224, 255, 0.14);
  --radius: 18px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Outfit", "Noto Sans TC", sans-serif;
  line-height: 1.65;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 8;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3 {
  font-family: "Syne", "Noto Sans TC", sans-serif;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  backdrop-filter: blur(16px);
  background: rgba(6, 8, 13, 0.72);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  border-bottom-color: var(--line);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Syne", sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 0.92rem;
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text);
}

.nav-links a.is-active {
  color: var(--cyan);
}

.nav-end {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
}

.lang-btn.is-active {
  background: var(--cyan-dim);
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  margin: 6px 8px;
  background: var(--text);
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 28px 72px;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(62, 224, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 224, 255, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 30% 40%, black, transparent 72%);
}

.hero-orb {
  position: absolute;
  width: 420px;
  height: 420px;
  right: 8%;
  top: 12%;
  background: radial-gradient(circle, rgba(62, 224, 255, 0.18), transparent 62%);
  filter: blur(8px);
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.kicker {
  color: var(--gold);
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  text-transform: uppercase;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  max-width: 12ch;
}

.lead {
  color: var(--muted);
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 28px 0 22px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--cyan);
  color: #041018;
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.badges li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  color: var(--muted);
}

.hero-panel {
  position: relative;
  z-index: 1;
  min-height: 360px;
}

.chain-visual {
  position: relative;
  height: 340px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(160deg, #101a28, #070b12 55%, #12202a);
  overflow: hidden;
}

.node {
  position: absolute;
  width: 72px;
  height: 72px;
  border: 2px solid var(--cyan);
  border-radius: 18px;
  box-shadow: 0 0 24px rgba(62, 224, 255, 0.25);
}

.n1 { top: 48px; left: 48px; }
.n2 { top: 134px; left: 158px; border-color: var(--gold); box-shadow: 0 0 24px rgba(212, 160, 23, 0.28); }
.n3 { top: 220px; left: 268px; }

.link {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transform-origin: left center;
}

.l1 { width: 140px; top: 84px; left: 118px; transform: rotate(38deg); }
.l2 { width: 140px; top: 176px; left: 228px; transform: rotate(38deg); }

.radar {
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(62, 224, 255, 0.25);
  border-radius: 50%;
  animation: pulse 5s ease-in-out infinite;
}

.panel-caption {
  text-align: center;
  letter-spacing: 0.28em;
  color: var(--muted);
  font-size: 0.72rem;
}

@keyframes pulse {
  50% { transform: scale(1.08); opacity: 0.4; }
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  background: var(--bg-2);
  padding: 28px;
  text-align: center;
}

.stat strong {
  display: block;
  font-family: "Syne", sans-serif;
  font-size: 1.6rem;
  color: var(--cyan);
}

.stat span {
  color: var(--muted);
  font-size: 0.86rem;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 88px 28px;
}

.section-alt {
  max-width: none;
  padding-left: max(28px, calc((100% - var(--max)) / 2));
  padding-right: max(28px, calc((100% - var(--max)) / 2));
  background: linear-gradient(180deg, rgba(16, 24, 38, 0.55), transparent);
}

.section-head {
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  max-width: 16ch;
}

.tech-grid,
.sol-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.card,
.sol {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.card:hover,
.sol:hover {
  border-color: rgba(62, 224, 255, 0.4);
  transform: translateY(-2px);
  transition: 0.2s ease;
}

.idx {
  color: var(--gold);
  font-family: "Syne", sans-serif;
  letter-spacing: 0.12em;
}

.sol-tag {
  display: inline-block;
  color: var(--cyan);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.compute-wrap {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 28px;
  align-items: center;
}

.rack {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  background: #070c14;
  display: grid;
  gap: 10px;
}

.rack-row {
  height: 28px;
  border-radius: 6px;
  background: repeating-linear-gradient(90deg, #152033 0 12px, #0c1420 12px 16px);
}

.rack-row.on {
  box-shadow: inset 0 0 0 1px rgba(62, 224, 255, 0.35);
  animation: glow 2.4s ease-in-out infinite;
}

@keyframes glow {
  50% { filter: brightness(1.35); }
}

.compute-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.compute-list article {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 32px;
}

.about-copy p {
  color: var(--muted);
}

.about-marks {
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-marks li {
  font-family: "Syne", "Noto Sans TC", sans-serif;
  font-size: 1.4rem;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info {
  margin: 0;
}

.contact-info div {
  margin-bottom: 18px;
}

.contact-info dt {
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}

.contact-info dd {
  margin: 4px 0 0;
}

.contact-info a {
  color: var(--cyan);
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
  background: #0a111b;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 1px solid var(--cyan);
}

.form-note {
  color: var(--cyan);
  margin: 0;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 36px 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer .logo {
  justify-content: center;
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin: 12px 0 18px;
}

.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 28px 24px;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  max-width: 16ch;
}

.banner {
  max-width: var(--max);
  margin: 0 auto 8px;
  padding: 0 28px;
}

.banner img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 22px;
  border: 1px solid var(--line);
}

.portal-grid,
.preview-grid,
.sol-media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.portal {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.portal:hover {
  border-color: rgba(62, 224, 255, 0.4);
}

.preview,
.sol-media {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.preview img,
.sol-media img,
.case img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.preview div {
  padding: 18px 20px 22px;
}

.sol-media {
  padding-bottom: 20px;
}

.sol-media .sol-tag,
.sol-media h3,
.sol-media p {
  padding: 0 20px;
}

.sol-media img {
  height: 180px;
  margin: 0 0 4px;
}

.section-cta {
  margin: 32px 0 0;
}

.note {
  color: var(--muted);
  margin-top: 36px;
  max-width: 62ch;
}

.case {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 40px;
  scroll-margin-top: 88px;
}

.case-flip {
  direction: rtl;
}

.case-flip > * {
  direction: ltr;
}

.case img {
  height: 320px;
  border-radius: 20px;
  border: 1px solid var(--line);
}

.case .meta {
  color: var(--cyan);
  font-size: 0.9rem;
}

.compute-list p,
.card p,
.sol p,
.about-copy p,
.preview p,
.sol-media p,
.case p {
  color: var(--muted);
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    background: #0d1520;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 16px;
  }
  .nav-links.is-open { display: flex; }
  .hero,
  .compute-wrap,
  .about-grid,
  .contact-grid,
  .tech-grid,
  .sol-grid,
  .compute-list,
  .stats,
  .portal-grid,
  .preview-grid,
  .sol-media-grid,
  .case,
  .case-flip {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  h1 { max-width: none; }
  .hero-panel { display: none; }
  .banner img { height: 200px; }
  .case img { height: 220px; }
}