.fhero {
  padding: calc(var(--nav-h) + 3.25rem) var(--gutter) 3.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.fhero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(720px 460px at 88% -12%, color-mix(in srgb, var(--game-accent, var(--brand)) 12%, transparent), transparent 68%),
    radial-gradient(520px 380px at 2% 108%, rgba(47,205,254,.09), transparent 72%);
}
.fhero-inner {
  position: relative; z-index: 1;
  max-width: 1240px; margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.5rem;
  align-items: center;
}

.fhero-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem .85rem; border-radius: 50px;
  background: var(--brand-light);
  background: color-mix(in srgb, var(--game-accent, var(--brand)) 11%, transparent);
  border: 1px solid var(--brand-mid-a);
  border-color: color-mix(in srgb, var(--game-accent, var(--brand)) 28%, transparent);
  color: var(--brand-strong);
  color: var(--game-accent, var(--brand-strong));
  font-size: .78rem; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase;
  margin-bottom: 1.15rem;
}
.fhero-eyebrow i { font-size: .8rem; }

.fhero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2rem, 3.6vw, 3.1rem);
  line-height: 1.06; letter-spacing: -.03em; color: var(--text);
  margin-bottom: 1.1rem;
}
.fhero h1 em { font-style: normal; color: var(--game-accent, var(--brand)); }

.fhero-lead {
  font-size: 1.1rem; line-height: 1.7; color: var(--muted);
  max-width: 46ch; margin-bottom: 1.9rem;
}

.fhero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.fhero-stats {
  display: flex; flex-wrap: wrap;
  margin-top: 2.25rem; padding-top: 1.6rem;
  border-top: 1px solid var(--border);
  gap: 0 2.2rem;
}
.fhero-stat { padding-right: 2.2rem; border-right: 1px solid var(--border); }
.fhero-stat:last-child { border-right: none; padding-right: 0; }
.fhero-stat-val {
  font-family: var(--font-display); font-weight: 800;
  font-size: 1.45rem; letter-spacing: -.02em; color: var(--text); line-height: 1.1;
}
.fhero-stat-lbl {
  font-size: .78rem; font-weight: 600; color: var(--muted2);
  margin-top: .2rem; letter-spacing: .01em;
}

.fhero-panel { align-self: center; }
.fhero-panel .feat-visual { box-shadow: var(--shadow-lg); margin: 0; }

.flow-rail {
  display: flex; align-items: stretch; justify-content: center;
  flex-wrap: nowrap; gap: .5rem;
  max-width: 1240px; margin: 2.75rem auto 0;
}
.flow-step {
  flex: 1 1 0; min-width: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 1rem;
  text-align: center;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.flow-step:hover { border-color: var(--border2); box-shadow: var(--shadow-md); transform: translateY(-2px); }

.flow-step.is-here {
  border-color: var(--game-accent, var(--brand));
  box-shadow: 0 0 0 1px var(--game-accent, var(--brand)), var(--shadow-md);
  background: var(--brand-light);
  background: color-mix(in srgb, var(--game-accent, var(--brand)) 8%, transparent);
}
.flow-icon {
  width: 38px; height: 38px; margin: 0 auto .7rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px; background: var(--bg3); color: var(--muted);
  font-size: .95rem;
}
.flow-step.is-here .flow-icon { background: var(--game-accent, var(--brand)); color: #fff; }
.flow-name {
  font-weight: 700; font-size: .92rem; color: var(--text);
  letter-spacing: -.01em; margin-bottom: .3rem;
}
.flow-desc { font-size: .8rem; color: var(--muted); line-height: 1.5; }

.flow-arrow {
  flex: 0 0 auto; align-self: center;
  color: var(--muted2); font-size: .8rem; padding: 0 .1rem;
}

.fnote {
  max-width: 780px; margin: 2.5rem auto 0;
  border-left: 3px solid var(--border2);
  padding: .35rem 0 .35rem 1.15rem;
  font-size: .92rem; line-height: 1.7; color: var(--muted);
}
.fnote strong { color: var(--text2); font-weight: 700; }
.fnote i { color: var(--amber); margin-right: .4rem; }

@media (max-width: 980px) {
  .fhero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .fhero-lead { max-width: none; }
  .fhero-panel { max-width: 480px; width: 100%; }

  .flow-rail { flex-direction: column; align-items: stretch; gap: .35rem; }
  .flow-step { text-align: left; display: flex; align-items: center; gap: .9rem; padding: .95rem 1.05rem; }
  .flow-icon { margin: 0; flex-shrink: 0; }
  .flow-arrow { transform: rotate(90deg); padding: .1rem 0; }
}

@media (max-width: 560px) {
  .fhero { padding-top: calc(var(--nav-h) + 2.25rem); }
  .fhero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .fhero-stats { gap: 1.1rem 1.6rem; }
  .fhero-stat { padding-right: 1.6rem; }
  .fhero-stat:nth-child(2n) { border-right: none; padding-right: 0; }
}

.spec-wrap {
  max-width: 900px; margin: 2rem auto 0;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface);
}
.spec-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: .92rem; }
.spec-table th, .spec-table td {
  padding: .85rem 1.1rem; text-align: left; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.spec-table thead th {
  font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted); background: var(--bg2); white-space: nowrap;
}
.spec-table tbody tr:last-child th, .spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table tbody th[scope="row"] { font-weight: 700; color: var(--text); white-space: nowrap; }
.spec-table td { color: var(--muted); line-height: 1.6; }
.spec-table td.spec-eg { font-family: var(--mono); font-size: .84rem; color: var(--text2); white-space: nowrap; }

.limits { max-width: 820px; margin: 2rem auto 0; list-style: none; padding: 0; }
.limits li {
  position: relative; padding: .85rem 0 .85rem 1.6rem;
  border-bottom: 1px solid var(--border);
  font-size: .95rem; line-height: 1.65; color: var(--muted);
}
.limits li:last-child { border-bottom: 0; }
.limits li::before {
  content: ''; position: absolute; left: 0; top: 1.4rem;
  width: 7px; height: 7px; border-radius: 2px; background: var(--muted2);
}
.limits strong { color: var(--text); font-weight: 700; }

.trace {
  max-width: 760px; margin: 2.25rem auto 0;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); overflow: hidden;
}
.trace-row {
  display: grid; grid-template-columns: 148px 1fr; gap: 0 1.4rem;
  padding: 1.05rem 1.35rem;
  border-bottom: 1px solid var(--border);
}
.trace-row:last-child { border-bottom: 0; }

.trace-label {
  font-size: .74rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted2);
  text-align: right; padding-top: .2rem; line-height: 1.5;
}
.trace-val { font-size: .98rem; color: var(--text); line-height: 1.55; font-weight: 600; }
.tv-mono { font-family: var(--mono); font-size: .9rem; }

.i-accent { color: var(--game-accent, var(--brand)); }
.trace-note {
  grid-column: 2; font-size: .875rem; color: var(--muted);
  line-height: 1.6; margin-top: .25rem;
}

.trace-row.is-final { background: var(--bg2); }
.trace-row.is-final .trace-val {
  color: var(--game-accent, var(--brand));
  font-family: var(--font-display); font-weight: 800; font-size: 1.35rem;
  letter-spacing: -.02em;
}

@media (max-width: 620px) {
  .trace-row { grid-template-columns: 1fr; gap: .3rem; padding: .95rem 1.1rem; }
  .trace-label { text-align: left; padding-top: 0; }
  .trace-note { grid-column: 1; }
}

.mini-calc {
  margin-top: .9rem; padding: .8rem .95rem;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--mono); font-size: .84rem; line-height: 1.85; color: var(--muted);
}
.mini-calc b { color: var(--text); font-weight: 700; }

.feature-page .vs-col.now {
  border-color: var(--game-accent, var(--brand));
  box-shadow: 0 0 0 1px var(--game-accent, var(--brand)), var(--shadow-md);
}
.feature-page .vs-col.now .vs-head,
.feature-page .vs-col.now .vs-list li i,
.feature-page .vs-col.now .vs-foot { color: var(--game-accent, var(--brand)); }

.vs-value {
  font-family: var(--mono); font-size: 1.05rem; font-weight: 700;
  color: var(--text); margin: .15rem 0 .9rem; word-break: break-all;
}
.vs-col.now .vs-value { color: var(--game-accent, var(--brand)); }
.vs-label {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted2);
}

@supports selector(:has(*)) {
  .feature-page .how-steps:has(> .how-step:nth-child(3):last-child) { grid-template-columns: repeat(3, 1fr); }
  .feature-page .how-steps:has(> .how-step:nth-child(3):last-child)::before { left: 16.67%; right: 16.67%; }

  .feature-page .how-steps:has(> .how-step:nth-child(4):last-child) { grid-template-columns: repeat(4, 1fr); }
  .feature-page .how-steps:has(> .how-step:nth-child(4):last-child)::before { left: 12.5%; right: 12.5%; }

  .feature-page .how-steps:has(> .how-step:nth-child(6):last-child) { grid-template-columns: repeat(6, 1fr); }
  .feature-page .how-steps:has(> .how-step:nth-child(6):last-child)::before { left: 8.33%; right: 8.33%; }
}