:root {
  color-scheme: dark;
  --ink: #eef7ff;
  --muted: #aab7c8;
  --surface: #111d2e;
  --surface-2: #172842;
  --line: rgba(115, 210, 255, .22);
  --orange: #ff8500;
  --orange-light: #ffac3d;
  --cyan: #16d5ef;
  --danger: #ffcc74;
}

* { box-sizing: border-box; }
html { background: #07101d; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 50% -5%, #183b62 0, #0b1727 35%, #07101d 78%);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.5;
}

.shell { width: min(900px, calc(100% - 36px)); margin: 0 auto; padding: 38px 0 46px; }
.hero { display: flex; align-items: center; gap: 26px; margin-bottom: 28px; }
.brand-mark {
  width: 128px; height: 128px; flex: 0 0 auto; object-fit: cover;
  border: 2px solid rgba(22,213,239,.75); border-radius: 22px;
  box-shadow: 0 0 0 7px rgba(22,213,239,.08), 0 18px 45px rgba(0,0,0,.4);
}
.eyebrow { margin: 0 0 4px; color: var(--cyan); font-weight: bold; letter-spacing: .11em; font-size: .76em; }
h1 { margin: 0; font-size: 3.4em; line-height: 1; letter-spacing: -.045em; color: var(--orange-light); }
.tagline { margin: 10px 0 0; color: var(--muted); font-size: 1.12em; }

.panel { border: 1px solid var(--line); border-radius: 17px; background: linear-gradient(150deg, rgba(25,42,67,.92), rgba(12,23,39,.92)); box-shadow: 0 12px 34px rgba(0,0,0,.18); }
.launch-panel { padding: 28px; text-align: center; margin-bottom: 20px; }
h2 { margin: 0 0 10px; font-size: 1.35em; color: #fff; }
.launch-panel > p { max-width: 620px; margin: 0 auto 20px; color: var(--muted); }
.launch-button, .secondary-button {
  appearance: none; cursor: pointer; border: 0; border-radius: 10px; font: bold 1.08em Arial, sans-serif;
  padding: 16px 30px; color: #111820; background: linear-gradient(135deg, var(--orange-light), var(--orange));
  box-shadow: 0 9px 20px rgba(255,133,0,.24);
}
.launch-button:hover, .launch-button:focus { outline: 3px solid rgba(22,213,239,.6); outline-offset: 4px; }
.button-note { margin: 15px 0 0 !important; color: #90a2b9 !important; font-size: .88em; }
.warning { margin: 24px auto 0; padding: 17px; border: 1px solid rgba(255, 204, 116, .6); border-radius: 11px; color: var(--danger); background: rgba(72, 45, 14, .3); text-align: left; }
.warning p { color: #f2d8a1 !important; margin: 8px 0 !important; }
.check-row { display: block; color: var(--ink); margin: 14px 0; }
.check-row input { width: 19px; height: 19px; vertical-align: middle; margin-right: 8px; }
.secondary-button { padding: 11px 17px; background: var(--cyan); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-bottom: 20px; }
.feature { padding: 20px; min-height: 188px; }
.step { display: inline-block; color: var(--cyan); font-weight: bold; letter-spacing: .12em; font-size: .82em; margin-bottom: 23px; }
.feature p, .details li { color: var(--muted); margin: 0; }
.install-guide { margin: 0 0 20px; overflow: hidden; }
.install-heading { display: flex; gap: 24px; align-items: flex-end; justify-content: space-between; padding: 25px 27px 20px; border-bottom: 1px solid var(--line); background: linear-gradient(120deg, rgba(22,213,239,.10), rgba(255,133,0,.05)); }
.install-heading > div { max-width: 640px; }
.install-heading > div > p:last-child { margin: 0; color: var(--muted); }
.guide-link { display: inline-block; flex: 0 0 auto; padding: 10px 14px; border: 1px solid rgba(22,213,239,.55); border-radius: 8px; color: var(--cyan); font-weight: bold; text-decoration: none; }
.guide-link:hover, .guide-link:focus { border-color: var(--orange-light); color: var(--orange-light); }
.install-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 0; }
.install-steps { margin: 0; padding: 16px 25px 18px 47px; list-style: decimal-leading-zero; }
.install-steps li { padding: 12px 0 12px 4px; color: var(--orange-light); }
.install-steps li + li { border-top: 1px solid rgba(115,210,255,.13); }
.install-steps strong, .install-steps span { display: block; }
.install-steps strong { color: var(--ink); }
.install-steps span { margin-top: 3px; color: var(--muted); }
.install-steps code, .tree-card code { color: var(--cyan); }
.tree-card { padding: 20px 23px; border-left: 1px solid var(--line); background: rgba(4,12,22,.5); }
.tree-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; color: var(--cyan); font-size: .79em; font-weight: bold; letter-spacing: .12em; }
.tree-card pre { margin: 0; overflow-x: auto; color: #d8e9fb; font: 14px/1.65 "Courier New", Courier, monospace; }
.tree-root { color: var(--orange-light); font-weight: bold; }
.tree-folder { color: var(--cyan); }
.tree-file { color: #b7daff; }
.tree-note { color: #8194aa; }
.tree-card p { margin: 15px 0 0; color: var(--muted); font-size: .89em; }
.sd-web-note { padding: 11px 13px; border-left: 3px solid var(--orange); background: rgba(255,133,0,.08); color: #f3d2a0 !important; }
.sd-web-note strong, .sd-web-note code { color: var(--orange-light); }
.format-guide { margin: 0 0 20px; overflow: hidden; }
.format-heading { padding: 25px 27px 19px; border-bottom: 1px solid var(--line); background: linear-gradient(120deg, rgba(255,133,0,.11), rgba(22,213,239,.08)); }
.format-heading > p:last-child { max-width: 760px; margin: 0; color: var(--muted); }
.format-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.format-card { min-height: 174px; padding: 21px 25px; border-bottom: 1px solid var(--line); }
.format-card:nth-child(odd) { border-right: 1px solid var(--line); }
.format-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
.format-card h3 { margin: 0 0 5px; color: #fff; font-size: 1.02em; }
.format-card h3 code { color: var(--cyan); overflow-wrap: anywhere; }
.format-card p { margin: 0; color: var(--muted); }
.format-card p + p { margin-top: 8px; }
.format-label { color: var(--orange-light) !important; font-size: .79em; font-weight: bold; letter-spacing: .04em; text-transform: uppercase; }
.format-recommended { background: rgba(22,213,239,.06); }
.format-recommended h3 code { color: var(--orange-light); }
.format-web { background: rgba(255,133,0,.045); }
.format-web h3 code { color: var(--orange-light); }
.format-official { background: rgba(4,12,22,.25); }
.format-bottom-note { margin: 0; padding: 17px 25px 20px; border-top: 1px solid var(--line); color: var(--muted); }
.format-bottom-note strong, .format-bottom-note code { color: var(--ink); }
.payload-chain { margin: 0 0 20px; overflow: hidden; }
.payload-heading { padding: 25px 27px 19px; border-bottom: 1px solid var(--line); background: linear-gradient(120deg, rgba(22,213,239,.12), rgba(7,16,29,.1)); }
.payload-heading > p:last-child { max-width: 750px; margin: 0; color: var(--muted); }
.payload-heading code { color: var(--orange-light); }
.payload-flow { display: flex; align-items: stretch; gap: 8px; padding: 23px 25px; background: rgba(4,12,22,.32); }
.flow-node { flex: 1 1 0; min-width: 0; padding: 14px 13px; border: 1px solid rgba(115,210,255,.24); border-radius: 10px; background: rgba(20,38,62,.6); }
.flow-node span { display: block; margin-bottom: 7px; color: var(--cyan); font-size: .75em; font-weight: bold; letter-spacing: .11em; }
.flow-node strong { display: block; overflow-wrap: anywhere; color: #fff; font-size: .95em; }
.flow-node small { display: block; margin-top: 5px; color: var(--muted); font-size: .79em; line-height: 1.35; }
.flow-target { border-color: rgba(255,172,61,.72); box-shadow: inset 0 0 22px rgba(255,133,0,.08); }
.flow-target span { color: var(--orange-light); }
.flow-arrow { align-self: center; flex: 0 0 auto; color: var(--cyan); font-size: 1.45em; }
.payload-note { display: flex; gap: 20px; align-items: center; justify-content: space-between; padding: 17px 25px 20px; border-top: 1px solid var(--line); }
.payload-note p { max-width: 550px; margin: 0; color: var(--muted); }
.payload-note strong, .payload-note code { color: var(--ink); }
.payload-actions { display: flex; flex: 0 0 auto; flex-wrap: wrap; gap: 9px; justify-content: flex-end; }
.payload-actions .guide-link { margin: 0; }
.payload-actions .official-link { border-color: rgba(255,172,61,.58); color: var(--orange-light); }
.aroma-setup { padding: 22px 25px 24px; border-top: 1px solid var(--line); background: linear-gradient(120deg, rgba(255,133,0,.08), rgba(7,16,29,.1)); }
.aroma-setup h3 { margin: 0; color: #fff; font-size: 1.08em; }
.aroma-setup h3 code { color: var(--orange-light); }
.aroma-setup ol { margin: 17px 0 0; padding-left: 22px; color: var(--muted); }
.aroma-setup li { padding-left: 4px; }
.aroma-setup li + li { margin-top: 9px; }
.aroma-setup strong { color: var(--ink); }
.aroma-setup code { color: var(--cyan); }
.aroma-source { margin: 16px 0 0; color: #91a8c2; font-size: .91em; }
.why-choose { margin: 0 0 20px; overflow: hidden; }
.why-heading { padding: 25px 27px 20px; border-bottom: 1px solid var(--line); background: linear-gradient(120deg, rgba(255,133,0,.13), rgba(22,213,239,.05)); }
.why-heading > p:last-child { max-width: 700px; margin: 0; color: var(--muted); }
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.why-grid article { min-height: 147px; padding: 21px 25px; }
.why-grid article:nth-child(odd) { border-right: 1px solid var(--line); }
.why-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
.why-grid h3 { margin: 0 0 8px; color: var(--orange-light); font-size: 1.03em; }
.why-grid p { margin: 0; color: var(--muted); }
.details { padding: 24px 27px; }
.details ul { margin: 0; padding-left: 23px; }
.details li + li { margin-top: 7px; }
footer { margin-top: 28px; color: #8090a7; text-align: center; font-size: .88em; }
footer p { margin: 6px 0; }
a { color: var(--cyan); }
a:focus, a:hover { color: #9bf3ff; }

@media (max-width: 600px) {
  .shell { width: min(100% - 24px, 900px); padding-top: 22px; }
  .hero { gap: 15px; align-items: flex-start; }
  .brand-mark { width: 82px; height: 82px; border-radius: 14px; }
  h1 { font-size: 2.35em; }
  .tagline { font-size: 1em; }
  .grid, .why-grid, .install-layout { grid-template-columns: 1fr; }
  .feature { min-height: 0; }
  .install-heading { display: block; padding: 22px 18px 18px; }
  .guide-link { margin-top: 14px; }
  .install-steps { padding: 14px 20px 16px 42px; }
  .tree-card { border-left: 0; border-top: 1px solid var(--line); padding: 18px; }
  .format-grid { grid-template-columns: 1fr; }
  .format-card { min-height: 0; }
  .format-card:nth-child(odd) { border-right: 0; }
  .format-card:not(:last-child) { border-bottom: 1px solid var(--line); }
  .format-heading { padding: 22px 18px 18px; }
  .format-card, .format-bottom-note { padding-left: 18px; padding-right: 18px; }
  .payload-flow { display: block; padding: 18px; }
  .flow-node { margin: 0; }
  .flow-arrow { height: 26px; line-height: 26px; text-align: center; transform: rotate(90deg); }
  .payload-note { display: block; padding: 18px; }
  .payload-actions { justify-content: flex-start; margin-top: 14px; }
  .aroma-setup { padding: 19px 18px; }
  .payload-note .guide-link { display: inline-block; }
  .why-grid article { min-height: 0; }
  .why-grid article:nth-child(odd) { border-right: 0; }
  .why-grid article:not(:last-child) { border-bottom: 1px solid var(--line); }
  .launch-panel { padding: 22px 17px; }
}