:root {
  color-scheme: dark;
  --bg: #0c0e14;
  --surface: #151823;
  --surface-strong: #1c2030;
  --text: #f4f2ed;
  --muted: #adb2c0;
  --line: #343a4f;
  --violet: #a892e8;
  --violet-strong: #c5b7f4;
  --gold: #d9b56d;
  --gold-strong: #f0d08a;
  --green: #69d6b1;
  --shadow: rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 82% 3%, rgba(168, 146, 232, 0.14), transparent 30rem),
    radial-gradient(circle at 12% 18%, rgba(217, 181, 109, 0.1), transparent 28rem),
    linear-gradient(180deg, #121521 0%, var(--bg) 42%, #090a0f 100%);
  color: var(--text);
  font-family: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.65;
}

a {
  color: var(--gold-strong);
}

a:focus-visible {
  outline: 3px solid var(--violet-strong);
  outline-offset: 4px;
}

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

h1,
h2,
h3,
p,
figure {
  margin-top: 0;
}

.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  color: var(--text);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--violet);
  border-radius: 9px;
  color: var(--violet-strong);
  background: rgba(168, 146, 232, 0.1);
  font-family: Consolas, monospace;
  font-size: 0.72rem;
}

nav {
  display: flex;
  gap: 24px;
}

nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover {
  color: var(--text);
}

main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1.12fr);
  gap: 62px;
  align-items: center;
  min-height: 760px;
  padding: 74px 0 96px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold-strong);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.status-pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 22px;
  padding: 5px 11px;
  border: 1px solid rgba(105, 214, 177, 0.34);
  border-radius: 999px;
  color: #b9efdd;
  background: rgba(105, 214, 177, 0.07);
  font-size: 0.8rem;
  font-weight: 800;
}

.status-pill span,
.release-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 13px rgba(105, 214, 177, 0.85);
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(3.1rem, 6.5vw, 6rem);
  line-height: 0.99;
  letter-spacing: -0.058em;
}

h1 em {
  color: var(--violet-strong);
  font-style: normal;
}

.lead {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.actions,
.release-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.actions {
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 47px;
  align-items: center;
  justify-content: center;
  gap: 11px;
  padding: 10px 19px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-weight: 850;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button.primary {
  border-color: var(--gold);
  background: var(--gold);
  color: #18130b;
}

.button.primary:hover {
  background: var(--gold-strong);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.035);
}

.button.secondary:hover {
  border-color: #69708a;
}

.download-note {
  margin: 14px 0 0;
  color: #858b9c;
  font-size: 0.82rem;
}

code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

.quick-stats {
  display: flex;
  gap: 24px;
  margin: 40px 0 0;
}

.quick-stats div {
  padding-right: 24px;
  border-right: 1px solid var(--line);
}

.quick-stats div:last-child {
  padding-right: 0;
  border-right: 0;
}

.quick-stats dt {
  color: var(--text);
  font-size: 1.23rem;
  font-weight: 950;
  line-height: 1;
}

.quick-stats dd {
  margin: 7px 0 0;
  color: #898fa0;
  font-size: 0.72rem;
}

.hero-shot {
  overflow: hidden;
  margin: 0;
  border: 1px solid #4c536a;
  border-radius: 11px;
  background: #11141d;
  box-shadow: 0 34px 100px var(--shadow), 0 0 0 10px rgba(255, 255, 255, 0.014);
  transform: perspective(1200px) rotateY(-2.5deg) rotateX(1deg);
}

.shot-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 50px;
  padding: 0 16px;
  border-bottom: 1px solid #3b4155;
  color: #a5aabb;
  background: linear-gradient(90deg, #202433, #171a25);
  font-size: 0.76rem;
}

.shot-bar span:first-child {
  display: flex;
  gap: 9px;
  align-items: center;
  color: #eef0f8;
  font-size: 0.84rem;
  font-weight: 850;
}

.shot-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 10px rgba(168, 146, 232, 0.8);
}

.hero-shot img {
  width: 100%;
  background: #252938;
}

.hero-shot figcaption {
  padding: 11px 16px;
  color: #82889a;
  font-size: 0.72rem;
  text-align: right;
}

.section,
.decision-section,
.install-section {
  padding: 92px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
  column-gap: 70px;
  align-items: end;
  margin-bottom: 38px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
}

.section-heading h2,
.decision-section h2 {
  margin-bottom: 0;
  font-size: clamp(2.05rem, 4vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: -0.038em;
}

.section-heading > p:last-child,
.decision-section > div:first-child > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.section-heading.compact {
  display: block;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article {
  min-height: 290px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(21, 24, 35, 0.82);
}

.card-number {
  color: var(--violet-strong);
  font-family: Consolas, monospace;
  font-size: 0.78rem;
}

.feature-grid h3 {
  margin: 66px 0 12px;
  font-size: 1.15rem;
}

.feature-grid p,
.steps p,
.permission-box p,
.release-strip p,
footer p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-grid p {
  font-size: 0.91rem;
}

.decision-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(560px, 1.2fr);
  gap: 64px;
  align-items: center;
}

.decision-section > div:first-child > p:last-child {
  margin-top: 22px;
}

.decision-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 10px;
  align-items: center;
}

.decision-flow > div {
  min-height: 170px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(21, 24, 35, 0.76);
}

.decision-flow > div.highlight {
  border-color: rgba(217, 181, 109, 0.55);
  background: linear-gradient(145deg, rgba(217, 181, 109, 0.12), rgba(21, 24, 35, 0.85));
}

.decision-flow span {
  display: grid;
  width: 28px;
  height: 28px;
  margin-bottom: 34px;
  place-items: center;
  border: 1px solid var(--violet);
  border-radius: 50%;
  color: var(--violet-strong);
  font-size: 0.75rem;
  font-weight: 900;
}

.decision-flow strong,
.decision-flow small {
  display: block;
}

.decision-flow small {
  margin-top: 8px;
  color: #858b9b;
}

.decision-flow > i {
  color: #6f7588;
  font-style: normal;
}

.gallery {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.6fr);
  gap: 18px;
  align-items: stretch;
}

.gallery figure {
  display: flex;
  overflow: hidden;
  margin: 0;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.22);
}

.gallery figure:not(.gallery-main) img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left top;
}

.gallery figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding: 16px 18px;
  border-top: 1px solid var(--line);
}

.gallery figcaption span {
  color: #878d9d;
  font-size: 0.78rem;
  text-align: right;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  padding: 22px;
  border-top: 2px solid var(--violet);
  background: linear-gradient(180deg, rgba(168, 146, 232, 0.1), rgba(21, 24, 35, 0.68));
}

.steps li > span {
  display: grid;
  width: 32px;
  height: 32px;
  margin-bottom: 44px;
  place-items: center;
  border: 1px solid var(--violet);
  border-radius: 50%;
  color: var(--violet-strong);
  font-weight: 900;
}

.steps strong {
  display: block;
  margin-bottom: 8px;
}

.steps p {
  font-size: 0.88rem;
}

.permission-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 28px;
  align-items: center;
  margin-top: 28px;
  padding: 24px;
  border: 1px solid rgba(105, 214, 177, 0.28);
  border-radius: 9px;
  background: rgba(105, 214, 177, 0.055);
}

.permission-box ul {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.permission-box li {
  padding: 4px 9px;
  border: 1px solid rgba(105, 214, 177, 0.32);
  border-radius: 999px;
  color: #b9efdd;
  font-family: Consolas, monospace;
  font-size: 0.78rem;
}

.permission-box > a {
  white-space: nowrap;
  font-size: 0.88rem;
  font-weight: 800;
}

.path-note {
  overflow-x: auto;
  margin: 16px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  color: #aeb4c2;
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.84rem;
  white-space: nowrap;
}

.path-note strong {
  margin-right: 8px;
  color: var(--text);
}

.release-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 18px 0 80px;
  padding: 27px 30px;
  border: 1px solid rgba(217, 181, 109, 0.38);
  border-radius: 9px;
  background: linear-gradient(90deg, rgba(217, 181, 109, 0.12), rgba(21, 24, 35, 0.78));
}

.release-strip > div:first-child {
  display: flex;
  gap: 16px;
  align-items: center;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 42px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
}

footer p span {
  color: #777d8d;
}

footer div {
  display: flex;
  gap: 18px;
}

@media (max-width: 1060px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 48px;
    min-height: auto;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-shot {
    transform: none;
  }

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

  .decision-section {
    grid-template-columns: 1fr;
  }

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

  .permission-box {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  .hero,
  .section,
  .decision-section,
  .install-section {
    padding: 64px 0;
  }

  h1 {
    font-size: clamp(3.05rem, 15vw, 5rem);
  }

  .section-heading,
  .gallery {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 18px;
  }

  .gallery figure:not(.gallery-main) img {
    height: auto;
  }

  .release-strip,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .site-header,
  main,
  footer {
    width: min(100% - 26px, 1180px);
  }

  .quick-stats {
    gap: 13px;
  }

  .quick-stats div {
    padding-right: 13px;
  }

  .feature-grid,
  .steps,
  .decision-flow {
    grid-template-columns: 1fr;
  }

  .feature-grid article {
    min-height: 225px;
  }

  .decision-flow > i {
    transform: rotate(90deg);
    text-align: center;
  }

  .permission-box ul {
    flex-wrap: wrap;
  }

  .gallery figcaption {
    align-items: flex-start;
    flex-direction: column;
  }

  .gallery figcaption span {
    text-align: left;
  }

  .release-actions,
  .release-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }

  .button:hover {
    transform: none;
  }
}