:root {
  --ink: #060708;
  --fog: rgba(255, 248, 240, 0.78);
  --mute: rgba(255, 248, 240, 0.45);
  --line: rgba(255, 248, 240, 0.12);
  --ember: #ff7a2f;
  --ember-deep: #d94a12;
  --gold: #f0c27a;
  --font-display: "Syne", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: #f6f1ea;
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--gold); }

.stage {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
}

.stage__bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 55% at 75% 8%, rgba(255, 122, 47, 0.2), transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 90%, rgba(60, 90, 140, 0.18), transparent 50%),
    linear-gradient(165deg, #050607 0%, #0c1018 45%, #08090c 100%);
  animation: drift 16s ease-in-out infinite alternate;
}

.stage__grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.28;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

@keyframes drift {
  from { transform: scale(1) translateY(0); }
  to { transform: scale(1.04) translateY(-1.5%); }
}

.top {
  max-width: 920px;
  margin: 0 auto;
  padding: 22px 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  animation: rise 0.7s ease both;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.brand img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}

.top__links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.92rem;
  color: var(--mute);
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--ember), var(--ember-deep));
  color: #fff8f0 !important;
  font-weight: 600;
  font-size: 0.88rem;
  box-shadow: 0 8px 24px rgba(217, 74, 18, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(217, 74, 18, 0.38);
  color: #fff !important;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 22px 72px;
}

.hero {
  padding: 36px 0 28px;
  animation: rise 0.85s 0.08s ease both;
}

.eyebrow {
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--gold), var(--ember));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin-top: 16px;
  max-width: 34em;
  color: var(--fog);
  font-size: 1.05rem;
  line-height: 1.7;
}

.jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.jump a {
  display: inline-flex;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fog);
  font-size: 0.88rem;
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.jump a:hover {
  border-color: rgba(255, 122, 47, 0.55);
  color: var(--gold);
  background: rgba(255, 122, 47, 0.08);
}

.block {
  position: relative;
  margin-top: 28px;
  padding: 28px 28px 28px 88px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  backdrop-filter: blur(8px);
  animation: rise 0.8s ease both;
}

.block:nth-of-type(2) { animation-delay: 0.12s; }
.block:nth-of-type(3) { animation-delay: 0.18s; }
.block:nth-of-type(4) { animation-delay: 0.24s; }
.block:nth-of-type(5) { animation-delay: 0.3s; }
.block:nth-of-type(6) { animation-delay: 0.36s; }

.num {
  position: absolute;
  left: 22px;
  top: 26px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: rgba(240, 194, 122, 0.55);
  letter-spacing: 0.04em;
}

.block h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.note {
  color: var(--mute);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 14px;
  padding: 12px 14px;
  border-left: 3px solid var(--ember);
  background: rgba(255, 122, 47, 0.08);
  border-radius: 0 10px 10px 0;
}

.steps {
  margin-left: 1.15em;
  color: var(--fog);
  line-height: 1.85;
  font-size: 0.98rem;
}

.steps li + li { margin-top: 8px; }
.steps strong { color: #fff; font-weight: 600; }
.steps a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }

.qa details {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.qa details:first-child { border-top: 0; padding-top: 0; }

.qa summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  color: #fff;
}

.qa summary::-webkit-details-marker { display: none; }

.qa summary::after {
  content: "+";
  float: right;
  color: var(--gold);
  font-weight: 700;
}

.qa details[open] summary::after { content: "–"; }

.qa p {
  margin-top: 10px;
  color: var(--mute);
  line-height: 1.7;
  font-size: 0.95rem;
}

.foot {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 0.9rem;
  color: var(--fog);
  animation: rise 0.9s 0.4s ease both;
}

.foot .mute {
  margin-top: 8px;
  color: var(--mute);
  font-size: 0.82rem;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 720px) {
  .block { padding: 22px 18px 22px 18px; }
  .num {
    position: static;
    margin-bottom: 8px;
    font-size: 1.15rem;
  }
  .top__links a:not(.btn-pill) { display: none; }
}