:root {
  color-scheme: dark;
  --bg: #050505;
  --panel: #0b0b10;
  --panel-2: #111119;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --text: #f7f7fb;
  --muted: #9aa0ad;
  --purple: #7c3aed;
  --purple-soft: #a78bfa;
  --green: #86efac;
  --warning: #fbbf24;
  --radius: 24px;
  --content: 1180px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(91, 33, 182, 0.24), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 86%);
  content: "";
  pointer-events: none;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

code {
  border: 1px solid rgba(167, 139, 250, 0.22);
  border-radius: 7px;
  background: rgba(124, 58, 237, 0.1);
  color: #ddd6fe;
  padding: 0.12em 0.4em;
  font-size: 0.9em;
}

pre {
  overflow: auto;
  margin: 18px 0 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #07070a;
  padding: 20px;
  color: #d8d8e2;
  line-height: 1.55;
}

pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 99;
  transform: translateY(-160%);
  border-radius: 999px;
  background: #fff;
  color: #000;
  padding: 10px 18px;
  font-weight: 800;
}

.skip-link:focus {
  transform: none;
}

.site-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  display: flex;
  width: 270px;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.9);
  padding: 34px 28px;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.13em;
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fff;
  color: #000;
  letter-spacing: -0.08em;
  font-size: 0.8rem;
}

.rail-nav {
  display: grid;
  gap: 8px;
  margin-top: 54px;
}

.rail-label {
  margin: 22px 10px 6px;
  color: #575b67;
  letter-spacing: 0.18em;
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
}

.rail-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  border-radius: 13px;
  color: #818795;
  padding: 8px 12px;
  transition: 160ms ease;
}

.rail-link:hover,
.rail-link[aria-current="page"] {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.rail-link small {
  color: #5f6470;
}

.rail-footer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  color: #646976;
  font-size: 0.78rem;
}

.site-main {
  margin-left: 270px;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100vh;
  align-items: center;
  overflow: hidden;
  padding: 80px clamp(36px, 7vw, 110px);
}

.hero::after {
  position: absolute;
  right: -12%;
  bottom: -34%;
  width: 74vw;
  height: 68vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.52), transparent 67%);
  filter: blur(20px);
  content: "";
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 980px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  color: #c8c9d2;
  letter-spacing: 0.24em;
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 20px var(--purple);
  content: "";
}

.hero h1 {
  max-width: 1000px;
  margin: 0;
  letter-spacing: -0.075em;
  font-size: clamp(4rem, 10.5vw, 9rem);
  font-weight: 950;
  line-height: 0.84;
  text-transform: uppercase;
}

.hero h1 span {
  display: block;
  background: linear-gradient(90deg, #fff 12%, #b7bac5 62%, #4d5360 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lede {
  max-width: 680px;
  margin: 42px 0 0;
  border-left: 2px solid var(--purple);
  color: #c5c7d0;
  padding-left: 22px;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: #fff;
  padding: 12px 24px;
  font-weight: 850;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.08);
}

.button-primary {
  border-color: #fff;
  background: #fff;
  color: #050505;
}

.button-primary:hover {
  background: #dddde4;
}

.catalogue {
  max-width: var(--content);
  margin: 0 auto;
  padding: 110px 48px 140px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
}

.section-heading h2 {
  margin: 0;
  letter-spacing: -0.05em;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.95;
}

.section-heading p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.tool-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #111118, #08080c);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease;
}

.tool-card:not(.is-disabled):hover {
  transform: translateY(-6px);
  border-color: rgba(167, 139, 250, 0.55);
}

.tool-card::after {
  position: absolute;
  right: -90px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.42), transparent 68%);
  content: "";
}

.tool-card.is-disabled {
  opacity: 0.55;
}

.card-kicker,
.badge {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 11px;
  color: #b5b8c2;
  letter-spacing: 0.12em;
  font-size: 0.67rem;
  font-weight: 900;
  text-transform: uppercase;
}

.badge.is-live {
  border-color: rgba(134, 239, 172, 0.3);
  background: rgba(134, 239, 172, 0.08);
  color: var(--green);
}

.tool-card h3 {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 76px 0 8px;
  letter-spacing: -0.04em;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
}

.tool-card p {
  position: relative;
  z-index: 1;
  max-width: 460px;
  margin: 0;
  color: var(--muted);
}

.doc-topbar {
  position: sticky;
  top: 0;
  z-index: 16;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.82);
  padding: 12px clamp(20px, 4vw, 54px);
  backdrop-filter: blur(18px);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.language-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 7px 15px;
  font-weight: 800;
}

.language-link:hover {
  background: #fff;
  color: #000;
}

.doc-shell {
  display: grid;
  max-width: 1480px;
  margin: 0 auto;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 54px;
  padding: 56px clamp(22px, 4vw, 64px) 130px;
}

.toc {
  position: sticky;
  top: 112px;
  align-self: start;
}

.toc p {
  margin: 0 0 14px;
  color: #5f6470;
  letter-spacing: 0.15em;
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.toc nav {
  display: grid;
  gap: 3px;
}

.toc a {
  border-left: 1px solid var(--line);
  color: #858b98;
  padding: 7px 13px;
  font-size: 0.9rem;
}

.toc a:hover {
  border-left-color: var(--purple-soft);
  color: #fff;
}

.doc-content {
  min-width: 0;
  max-width: 960px;
}

.doc-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 84% 92%, rgba(124, 58, 237, 0.5), transparent 40%),
    linear-gradient(145deg, #111119, #08080b);
  padding: clamp(34px, 6vw, 72px);
  box-shadow: var(--shadow);
}

.doc-hero h1 {
  max-width: 760px;
  margin: 18px 0;
  letter-spacing: -0.06em;
  font-size: clamp(3rem, 7.5vw, 6.4rem);
  line-height: 0.88;
}

.doc-hero p {
  max-width: 690px;
  margin: 0;
  color: #c0c2cc;
  font-size: 1.08rem;
}

.version-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.doc-section {
  scroll-margin-top: 96px;
  border-bottom: 1px solid var(--line);
  padding: 76px 0;
}

.doc-section:last-child {
  border-bottom: 0;
}

.doc-section h2 {
  margin: 0 0 18px;
  letter-spacing: -0.045em;
  font-size: clamp(2.1rem, 4.5vw, 3.7rem);
  line-height: 1.03;
}

.doc-section h3 {
  margin: 36px 0 10px;
  letter-spacing: -0.02em;
  font-size: 1.35rem;
}

.doc-section p,
.doc-section li {
  color: #b9bcc6;
}

.doc-section ul,
.doc-section ol {
  padding-left: 1.35rem;
}

.doc-section li + li {
  margin-top: 8px;
}

.callout {
  margin: 24px 0;
  border: 1px solid rgba(167, 139, 250, 0.25);
  border-left: 3px solid var(--purple-soft);
  border-radius: 0 16px 16px 0;
  background: rgba(124, 58, 237, 0.08);
  padding: 17px 20px;
  color: #d5d2e3;
}

.callout.warning {
  border-color: rgba(251, 191, 36, 0.24);
  border-left-color: var(--warning);
  background: rgba(251, 191, 36, 0.06);
}

.table-wrap {
  overflow-x: auto;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(11, 11, 16, 0.7);
  font-size: 0.92rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

th {
  color: #fff;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

td {
  color: #b5b8c2;
}

tr:last-child td {
  border-bottom: 0;
}

.media-placeholder {
  position: relative;
  display: grid;
  min-height: 300px;
  margin: 30px 0 6px;
  place-items: center;
  overflow: hidden;
  border: 1px dashed rgba(167, 139, 250, 0.58);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.08), transparent),
    repeating-linear-gradient(135deg, transparent 0 16px, rgba(255, 255, 255, 0.018) 16px 32px);
  padding: 32px;
  text-align: center;
}

.media-placeholder::before {
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  content: "";
}

.media-placeholder strong {
  display: block;
  color: #ddd6fe;
}

.media-placeholder span {
  position: relative;
  z-index: 1;
  color: #777d8b;
}

.media-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0b0b10;
}

.placeholder-caption {
  margin: 6px 0 0;
  color: #666b77;
  font-size: 0.78rem;
}

.align-grid {
  display: grid;
  margin: 30px 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.align-cell {
  position: relative;
  display: grid;
  min-height: 132px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #0a0a0e;
}

.align-cell::before {
  position: absolute;
  width: 72px;
  height: 20px;
  background: #e8e8ed;
  content: "";
}

.align-cell::after {
  position: absolute;
  width: 17px;
  height: 17px;
  background: #ef3340;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12);
  content: "";
}

.align-cell span {
  position: absolute;
  bottom: 5px;
  z-index: 2;
  color: #686e7a;
  font-size: 0.62rem;
}

.align-cell[data-position="top_left"]::before { transform: translate(-45px, -19px); }
.align-cell[data-position="top_left"]::after { transform: translate(0, 0); }
.align-cell[data-position="top_center"]::before { transform: translate(0, -19px); }
.align-cell[data-position="top_center"]::after { transform: translate(0, 0); }
.align-cell[data-position="top_right"]::before { transform: translate(45px, -19px); }
.align-cell[data-position="top_right"]::after { transform: translate(0, 0); }
.align-cell[data-position="middle_left"]::before { transform: translate(-45px, 0); }
.align-cell[data-position="middle_left"]::after { transform: translate(0, 0); }
.align-cell[data-position="center"]::before { transform: translate(0, 0); }
.align-cell[data-position="center"]::after { transform: translate(0, 0); }
.align-cell[data-position="middle_right"]::before { transform: translate(45px, 0); }
.align-cell[data-position="middle_right"]::after { transform: translate(0, 0); }
.align-cell[data-position="bottom_left"]::before { transform: translate(-45px, 19px); }
.align-cell[data-position="bottom_left"]::after { transform: translate(0, 0); }
.align-cell[data-position="bottom_center"]::before { transform: translate(0, 19px); }
.align-cell[data-position="bottom_center"]::after { transform: translate(0, 0); }
.align-cell[data-position="bottom_right"]::before { transform: translate(45px, 19px); }
.align-cell[data-position="bottom_right"]::after { transform: translate(0, 0); }

.checklist {
  display: grid;
  margin-top: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 !important;
  list-style: none;
}

.checklist li {
  margin: 0 !important;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
  padding: 14px 16px;
}

.checklist li::before {
  margin-right: 10px;
  color: var(--green);
  content: "✓";
}

.site-footer {
  display: flex;
  max-width: var(--content);
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 34px 48px;
  color: #696f7b;
  font-size: 0.82rem;
}

.mobile-menu-button {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #0b0b10;
  color: #fff;
  font-size: 1.2rem;
}

@media (max-width: 980px) {
  .site-rail {
    position: sticky;
    top: 0;
    width: 100%;
    height: auto;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 14px 20px;
  }

  .rail-nav {
    position: absolute;
    top: 71px;
    right: 14px;
    left: 14px;
    display: none;
    margin: 0;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(5, 5, 5, 0.98);
    padding: 14px;
    box-shadow: var(--shadow);
  }

  .site-rail[data-open="true"] .rail-nav {
    display: grid;
  }

  .rail-footer,
  .rail-label {
    display: none;
  }

  .mobile-menu-button {
    display: grid;
  }

  .site-main {
    margin-left: 0;
  }

  .hero {
    min-height: calc(100vh - 71px);
    padding: 74px 28px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .doc-shell {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--panel);
    padding: 18px;
  }

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

@media (max-width: 640px) {
  .brand-text {
    display: none;
  }

  .hero h1 {
    font-size: clamp(3.25rem, 19vw, 5.2rem);
  }

  .catalogue {
    padding: 80px 22px 100px;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .tool-card {
    min-height: 280px;
    padding: 24px;
  }

  .doc-topbar {
    padding: 10px 14px;
  }

  .topbar-actions .button {
    display: none;
  }

  .doc-shell {
    gap: 26px;
    padding: 26px 15px 90px;
  }

  .doc-hero {
    border-radius: 22px;
    padding: 32px 24px;
  }

  .doc-hero h1 {
    font-size: clamp(2.7rem, 14vw, 4.4rem);
  }

  .toc nav {
    grid-template-columns: 1fr;
  }

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

  .checklist {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 28px 22px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}