/* ═══════════════════════════════════════════════════════════════
   Preprocessing page (redesigned 2026-09-08) — `px-` namespace.
   Hands off to the batterylake-processing agent skill.
   ═══════════════════════════════════════════════════════════════ */
#page-preprocessing .prep-page-hero { margin-bottom: 22px; }
#page-preprocessing .prep-page-hero .page-title { max-width: min(640px, 55%); }
#page-preprocessing .prep-page-hero .page-desc { max-width: min(690px, 57%); }

#page-preprocessing .px-section {
  margin-top: 26px; padding: 26px 28px 28px; border: 1px solid var(--border); border-radius: var(--radius-lg, 16px);
  background: var(--surface, var(--bg)); box-shadow: var(--card-shadow, none);
}
#page-preprocessing .px-section-head { max-width: 860px; margin-bottom: 22px; }
#page-preprocessing .px-section-head h2,
#page-preprocessing .px-skill-name {
  display: flex; align-items: center; gap: 10px; font-family: var(--sans) !important; font-size: 24px; font-weight: 850 !important; letter-spacing: 0 !important; color: var(--text1);
}
#page-preprocessing .px-section-head h2 { margin: 0; }
#page-preprocessing .px-section-number {
  flex: 0 0 34px; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid color-mix(in srgb,var(--accent) 32%,var(--border));
  border-radius: 10px; color: var(--accent); background: var(--accent-light); font-size: 11px; font-weight: 800;
}
#page-preprocessing code { font-family: var(--mono); font-size: .92em; background: var(--bg3); padding: 1px 5px; border-radius: 5px; color: var(--text2); }

/* ── skill card ────────────────────────────────────────────── */
#page-preprocessing .px-skill {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 1.1fr); grid-template-areas: 'title title' 'download install'; gap: 18px 14px; padding: 26px 28px 28px;
  border: 1px solid var(--border); border-radius: var(--radius-lg, 16px); background: var(--surface, var(--bg));
  box-shadow: var(--card-shadow, none); overflow: hidden;
}
#page-preprocessing .px-skill-title-row { grid-area: title; padding: 0; }
#page-preprocessing .px-skill-main {
  grid-area: download; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-alt, var(--bg2, var(--bg))); min-width: 0;
}
#page-preprocessing .px-skill-name {
  margin: 0;
}
#page-preprocessing .px-flow-heading { display: flex; align-items: flex-start; gap: 10px; min-width: 0; }
#page-preprocessing .px-flow-number {
  display: grid; place-items: center; flex: 0 0 34px; width: 34px; height: 34px; border: 1px solid var(--border2, var(--border)); border-radius: 10px;
  background: var(--accent); border-color: var(--accent); color: #fff; font-size: 11px; font-weight: 800;
}
#page-preprocessing .px-flow-heading h3 { margin: 0; color: var(--text1); font-size: 15px; font-weight: 750; line-height: 1.35; }
#page-preprocessing .px-flow-heading p { margin: 3px 0 0; color: var(--text3); font-size: 12.5px; line-height: 1.45; }
#page-preprocessing .px-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
#page-preprocessing .px-chip {
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  background: var(--accent-light); color: var(--accent); border: 1px solid transparent;
}
#page-preprocessing .px-chip-muted { background: var(--bg3); color: var(--text3); }
#page-preprocessing .px-actions { margin: 16px 0 18px; }
#page-preprocessing .px-package-contents { border-top: 1px solid var(--border); }
#page-preprocessing .px-package-contents summary {
  padding: 14px 0 0; color: var(--text3); cursor: pointer; font-size: 12.5px; font-weight: 650; list-style: none;
}
#page-preprocessing .px-package-contents summary::-webkit-details-marker { display: none; }
#page-preprocessing .px-package-contents summary::before { content: '›'; display: inline-block; margin-right: 7px; color: var(--accent); font-size: 16px; line-height: 10px; transition: transform .15s; }
#page-preprocessing .px-package-contents[open] summary { padding-bottom: 10px; color: var(--text1); }
#page-preprocessing .px-package-contents[open] summary::before { transform: rotate(90deg); }
#page-preprocessing .px-filetree {
  margin: 0; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg2, var(--bg));
  font-family: var(--mono); font-size: 12.5px; color: var(--text1); overflow-x: auto;
}
#page-preprocessing .px-ft-row { display: grid; grid-template-columns: minmax(200px, 250px) minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 4px 4px; }
#page-preprocessing .px-ft-row + .px-ft-row { border-top: 1px dashed var(--border); }
#page-preprocessing .px-ft-branch { color: var(--text4); white-space: pre; }
#page-preprocessing .px-ft-name { font-weight: 600; }
#page-preprocessing .px-ft-row.is-dir .px-ft-name { color: var(--accent); }
#page-preprocessing .px-ft-name { white-space: nowrap; }
#page-preprocessing .px-ft-desc { font-family: var(--sans); font-size: 12.5px; line-height: 1.4; color: var(--text3); }
#page-preprocessing .px-ft-size { font-size: 11.5px; color: var(--text4); min-width: 52px; text-align: right; }
#page-preprocessing .px-actions { display: flex; flex-wrap: wrap; gap: 10px; }
#page-preprocessing .px-btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 10px 16px; border-radius: 10px; font-size: 13.5px; font-weight: 600;
  font-family: var(--sans); border: 1px solid var(--border); background: var(--bg); color: var(--text2); cursor: pointer;
  text-decoration: none; transition: all .15s; white-space: nowrap;
}
#page-preprocessing .px-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
#page-preprocessing .px-btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 2px 8px rgba(42,95,234,.26); }
#page-preprocessing .px-btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
#page-preprocessing .px-btn:disabled { opacity: .6; cursor: default; }

#page-preprocessing .px-install {
  grid-area: install; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-alt, var(--bg2, var(--bg)));
  display: flex; flex-direction: column; gap: 12px; min-width: 0;
}
#page-preprocessing .px-install-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
#page-preprocessing .px-install-head .px-flow-heading { flex: 1; }
#page-preprocessing .px-tabs { display: inline-flex; padding: 3px; border-radius: 9px; background: var(--bg3); }
#page-preprocessing .px-tab {
  border: 0; background: transparent; padding: 6px 12px; border-radius: 7px; font-size: 12.5px; font-weight: 600;
  color: var(--text3); cursor: pointer; font-family: var(--sans);
}
#page-preprocessing .px-tab.active { background: var(--bg); color: var(--text1); box-shadow: 0 1px 3px rgba(15,23,42,.12); }
#page-preprocessing .px-install-steps { margin: 0; padding-left: 20px; font-size: 13.5px; line-height: 1.6; color: var(--text2); }
#page-preprocessing .px-install-steps li + li { margin-top: 4px; }
#page-preprocessing .px-install-note { margin: 0; font-size: 12.5px; line-height: 1.55; color: var(--text3); }

/* ── code blocks ───────────────────────────────────────────── */
#page-preprocessing .px-code-wrap { position: relative; }
#page-preprocessing .px-code {
  margin: 0; padding: 14px 16px; border: 1px solid var(--border) !important; border-radius: 10px; background: var(--bg) !important; color: var(--text1) !important;
  font-family: var(--mono); font-size: 12.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; overflow-x: auto;
}
#page-preprocessing .px-copy {
  position: absolute; top: 8px; right: 8px; padding: 4px 10px; border-radius: 6px; font-size: 11.5px; font-weight: 600;
  border: 1px solid var(--border); background: var(--bg2); color: var(--text2); cursor: pointer; font-family: var(--sans);
}
#page-preprocessing .px-copy:hover { border-color: var(--accent); background: var(--accent-light); color: var(--accent); }
#page-preprocessing .px-tree {
  margin: 0 0 14px; padding: 14px 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg2, var(--bg));
  font-family: var(--mono); font-size: 12px; line-height: 1.6; color: var(--text2); white-space: pre; overflow-x: auto;
}

/* ── gates: illustrated cards ──────────────────────────────── */
#page-preprocessing .px-gates {
  list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px;
}
#page-preprocessing .px-run-explainer { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--border); }
#page-preprocessing .px-run-explainer-head { margin-bottom: 16px; }
#page-preprocessing .px-run-explainer-head h3 { margin: 0; color: var(--text1); font-size: 17px; font-weight: 750; letter-spacing: -.01em; }
#page-preprocessing .px-output-explainer { margin-top: 28px; }
#page-preprocessing .px-gate {
  --gate: var(--accent); --gate-bg: var(--accent-light);
  position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px 16px 16px;
  border: 1px solid var(--border); border-radius: 14px; background: var(--surface-alt, var(--bg2, var(--bg))); box-shadow: none; min-width: 0;
}
#page-preprocessing .px-gate[data-gate="S"] { --gate: var(--teal); --gate-bg: var(--teal-bg); }
#page-preprocessing .px-gate[data-gate="C"] { --gate: var(--purple); --gate-bg: var(--purple-bg); }
#page-preprocessing .px-gate[data-gate="V"] { --gate: var(--amber); --gate-bg: var(--amber-bg, #fff4e3); }
#page-preprocessing .px-gate[data-gate="E"] { --gate: var(--green); --gate-bg: var(--green-bg); }
#page-preprocessing .px-gate::after {
  content: ''; position: absolute; top: 58px; right: -13px; width: 12px; height: 2px; background: var(--border2, var(--border));
}
#page-preprocessing .px-gate:last-child::after { display: none; }
#page-preprocessing .px-gate-art {
  width: 100%; height: 84px; border-radius: 11px; background: var(--gate-bg); color: var(--gate); display: grid; place-items: center; margin-bottom: 6px;
}
#page-preprocessing .px-gate-art img {
  width: 112px; height: 112px; object-fit: contain; display: block; transform: translateY(-12px);
}
#page-preprocessing .px-gate strong { font-size: 14.5px; color: var(--text1); }
#page-preprocessing .px-gate > span { font-size: 12.5px; line-height: 1.5; color: var(--text3); }
#page-preprocessing .px-gate em {
  font-style: normal; font-family: var(--mono); font-size: 11.5px; color: var(--gate); margin-top: 4px;
  padding: 2px 8px; border-radius: 6px; background: var(--gate-bg);
}

/* ── run: three steps ─────────────────────────────────────── */
#page-preprocessing .px-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr) minmax(0, 1fr); gap: 14px; align-items: stretch; }
#page-preprocessing .px-step {
  display: flex; flex-direction: column; gap: 12px; padding: 18px 20px 20px; border: 1px solid var(--border); border-radius: 14px;
  background: var(--surface-alt, var(--bg2, var(--bg))); box-shadow: none; min-width: 0;
}
#page-preprocessing .px-step-head { display: flex; align-items: center; gap: 10px; }
#page-preprocessing .px-step-head strong { font-size: 15px; color: var(--text1); }
#page-preprocessing .px-step-num {
  width: 34px; height: 34px; border: 1px solid var(--border2, var(--border)); border-radius: 10px; display: grid; place-items: center; font-weight: 800; font-size: 11px;
  background: var(--accent); border-color: var(--accent); color: #fff; flex: 0 0 34px;
}
#page-preprocessing .px-select {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--input-bg, var(--bg));
  color: var(--text1); font-size: 13px; font-family: var(--mono);
}
#page-preprocessing .px-paths { display: flex; flex-direction: column; gap: 4px; }
#page-preprocessing .px-path { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; background: var(--bg2, var(--bg)); border: 1px solid var(--border); min-width: 0; }
#page-preprocessing .px-path.is-out { border-color: var(--green); background: var(--green-bg); }
#page-preprocessing .px-path-k { font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text3); flex: 0 0 26px; }
#page-preprocessing .px-path.is-out .px-path-k { color: var(--green); }
#page-preprocessing .px-path code { background: transparent; padding: 0; font-size: 12.5px; color: var(--text1); word-break: break-all; line-height: 1.4; }
#page-preprocessing .px-path-arrow { display: flex; justify-content: center; color: var(--text4); margin: -2px 0; }
#page-preprocessing .px-prompt { min-height: 132px; font-size: 12px; padding-right: 72px; }
#page-preprocessing .px-step-note { margin: 0; font-size: 12.5px; line-height: 1.5; color: var(--text3); }
#page-preprocessing .px-facts { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
#page-preprocessing .px-facts li { display: flex; gap: 12px; align-items: flex-start; }
#page-preprocessing .px-facts li > span:last-child { display: flex; flex-direction: column; gap: 1px; font-size: 12.5px; line-height: 1.45; color: var(--text3); min-width: 0; }
#page-preprocessing .px-facts strong { font-size: 13.5px; color: var(--text1); }
#page-preprocessing .px-fact-ic {
  flex: 0 0 34px; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-light); color: var(--accent);
}
#page-preprocessing .px-fact-ic svg { width: 18px; height: 18px; }
#page-preprocessing .px-step-link { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--accent); text-decoration: none; }
#page-preprocessing .px-step-link:hover { text-decoration: underline; }

/* ── output explorer + rules ──────────────────────────────── */
#page-preprocessing .px-two-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
#page-preprocessing .px-card {
  padding: 20px 22px 22px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-alt, var(--bg2, var(--bg))); box-shadow: none; min-width: 0;
}
#page-preprocessing .px-card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
#page-preprocessing .px-card-head .px-mini-title { margin-bottom: 0; }
#page-preprocessing .px-card-hint { font-size: 11.5px; color: var(--text4); }
#page-preprocessing .px-mini-title { font-size: 14px; font-weight: 700; color: var(--text1); margin-bottom: 8px; }
#page-preprocessing .px-explorer-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
#page-preprocessing .px-out-tree { display: flex; flex-direction: column; gap: 2px; font-family: var(--mono); font-size: 12.5px; }
#page-preprocessing .px-out-row {
  display: flex; align-items: center; gap: 6px; padding: 6px 8px; border-radius: 8px; border: 1px solid transparent; cursor: pointer; color: var(--text2); white-space: nowrap; overflow: hidden; min-width: 0;
}
#page-preprocessing .px-out-name { overflow: hidden; text-overflow: ellipsis; }
#page-preprocessing .px-out-row:hover { background: var(--bg2, var(--bg)); }
#page-preprocessing .px-out-row.active { background: var(--accent-light); border-color: var(--accent); color: var(--text1); }
#page-preprocessing .px-out-branch { color: var(--text4); white-space: pre; }
#page-preprocessing .px-out-row.is-dir .px-out-name { color: var(--accent); font-weight: 600; }
#page-preprocessing .px-out-row .px-out-ic { width: 14px; height: 14px; color: var(--text4); flex: 0 0 14px; }
#page-preprocessing .px-out-detail { padding: 14px 16px; border-radius: 12px; background: var(--bg2, var(--bg)); border: 1px solid var(--border); font-size: 13px; line-height: 1.55; color: var(--text2); align-self: start; }
#page-preprocessing .px-out-detail h4 { margin: 0 0 6px; font-family: var(--mono); font-size: 13px; color: var(--text1); word-break: break-all; }
#page-preprocessing .px-out-detail p { margin: 0 0 10px; }
#page-preprocessing .px-out-chips { display: flex; flex-wrap: wrap; gap: 5px; }
#page-preprocessing .px-out-chips span { font-family: var(--mono); font-size: 11px; padding: 2px 7px; border-radius: 6px; background: var(--bg3); color: var(--text2); }
#page-preprocessing .px-out-gate { display: inline-block; margin-top: 10px; font-size: 11.5px; color: var(--text3); }
#page-preprocessing .px-out-gate b { font-family: var(--mono); color: var(--accent); }
#page-preprocessing .px-rules { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
#page-preprocessing .px-rule {
  display: grid; grid-template-columns: 30px minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 10px; row-gap: 0;
  padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg2, var(--bg)); cursor: pointer; transition: border-color .15s, background .15s;
}
#page-preprocessing .px-rule:hover { border-color: var(--accent); }
#page-preprocessing .px-rule.open { background: var(--accent-light); border-color: var(--accent); }
#page-preprocessing .px-rule { align-items: center; }
#page-preprocessing .px-rule-ic { grid-row: 1 / span 2; align-self: start; width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; background: var(--bg); color: var(--accent); border: 1px solid var(--border); }
#page-preprocessing .px-rule-ic svg { width: 16px; height: 16px; }
#page-preprocessing .px-rule-title { font-size: 13px; font-weight: 700; color: var(--text1); line-height: 1.3; align-self: center; }
#page-preprocessing .px-rule-body { display: none; font-size: 12.5px; line-height: 1.5; color: var(--text2); padding: 6px 0 2px; }
#page-preprocessing .px-rule.open .px-rule-body { display: block; }

/* ── verify ────────────────────────────────────────────────── */
#page-preprocessing .px-verify-grid { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(0, 1.6fr); gap: 18px; align-items: stretch; }
#page-preprocessing .px-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center; padding: 28px 20px;
  border: 1.5px dashed var(--border2, var(--border)); border-radius: 14px; background: var(--bg2, var(--bg)); color: var(--text3); cursor: pointer;
  transition: border-color .15s, background .15s;
}
#page-preprocessing .px-drop:hover, #page-preprocessing .px-drop.dragging { border-color: var(--accent); background: var(--accent-light); color: var(--accent); }
#page-preprocessing .px-verify-left { display: flex; flex-direction: column; gap: 10px; }
#page-preprocessing .px-drop { flex: 1; }
#page-preprocessing .px-examples { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 12.5px; color: var(--text3); }
#page-preprocessing .px-examples button {
  font-family: var(--mono); font-size: 12px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg);
  color: var(--text2); cursor: pointer;
}
#page-preprocessing .px-examples button:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
#page-preprocessing .px-drop-title { font-size: 14px; font-weight: 600; color: var(--text1); }
#page-preprocessing .px-drop-sub { font-size: 12px; color: var(--text4); font-family: var(--mono); }
#page-preprocessing .px-status {
  padding: 20px 22px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-alt, var(--bg2, var(--bg))); box-shadow: none; min-width: 0;
}
#page-preprocessing .px-status-head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
#page-preprocessing .px-example-badge {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 3px 8px; border-radius: 6px;
  background: var(--amber-bg, #fff4e3); color: var(--amber, #b45309);
}
#page-preprocessing .px-status-id { font-family: var(--mono); font-size: 15px; font-weight: 700; color: var(--text1); }
#page-preprocessing .px-status-overall {
  margin-left: auto; font-family: var(--mono); font-size: 12px; padding: 3px 9px; border-radius: 6px; background: var(--bg3); color: var(--text2);
}
#page-preprocessing .px-status-overall.is-done { background: var(--green-bg); color: var(--green); }
#page-preprocessing .px-status-overall.is-partial { background: var(--amber-bg, #fff4e3); color: var(--amber); }
#page-preprocessing .px-stage-track { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
#page-preprocessing .px-stage {
  display: flex; flex-direction: column; gap: 3px; padding: 10px 10px 9px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg2, var(--bg)); min-width: 0;
}
#page-preprocessing .px-stage-letter { font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--text2); }
#page-preprocessing .px-stage-name { font-size: 12px; font-weight: 600; color: var(--text1); }
#page-preprocessing .px-stage-value { font-family: var(--mono); font-size: 10.5px; color: var(--text4); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#page-preprocessing .px-stage.is-done { border-color: var(--green); background: var(--green-bg); }
#page-preprocessing .px-stage.is-done .px-stage-letter { color: var(--green); }
#page-preprocessing .px-stage.is-partial { border-color: var(--amber); background: var(--amber-bg, #fff4e3); }
#page-preprocessing .px-stage.is-partial .px-stage-letter { color: var(--amber); }
#page-preprocessing .px-stage.is-pending { opacity: .75; }
#page-preprocessing .px-stage.is-na { opacity: .6; border-style: dashed; }
#page-preprocessing .px-dim.is-na dd { color: var(--text4); }
#page-preprocessing .px-status-dims { margin: 0 0 12px; display: grid; gap: 6px; }
#page-preprocessing .px-dim { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 12px; align-items: baseline; padding: 6px 0; border-top: 1px solid var(--divider, var(--border)); }
#page-preprocessing .px-dim dt { font-size: 12.5px; font-weight: 600; color: var(--text3); }
#page-preprocessing .px-dim dd { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--text2); word-break: break-word; }
#page-preprocessing .px-dim.is-done dd { color: var(--green); }
#page-preprocessing .px-dim.is-partial dd { color: var(--amber); }
#page-preprocessing .px-status-counts { display: flex; flex-wrap: wrap; gap: 8px; }
#page-preprocessing .px-count {
  display: flex; flex-direction: column; gap: 2px; padding: 8px 12px; border-radius: 9px; background: var(--bg3); min-width: 120px;
}
#page-preprocessing .px-count span { font-size: 11px; color: var(--text3); }
#page-preprocessing .px-count strong { font-family: var(--mono); font-size: 13px; color: var(--text1); }

/* ── responsive ────────────────────────────────────────────── */
@media (max-width: 1180px) {
}
@media (max-width: 960px) {
  #page-preprocessing .px-skill { grid-template-columns: minmax(0, 1fr); grid-template-areas: 'title' 'download' 'install'; }
  #page-preprocessing .px-steps, #page-preprocessing .px-two-grid, #page-preprocessing .px-verify-grid { grid-template-columns: minmax(0, 1fr); }
  #page-preprocessing .px-explorer-body { grid-template-columns: minmax(0, 1fr); }
  #page-preprocessing .px-rules { grid-template-columns: minmax(0, 1fr); }
  #page-preprocessing .px-ft-row { grid-template-columns: minmax(0, 1fr) auto; }
  #page-preprocessing .px-ft-desc { display: none; }
  #page-preprocessing .px-gates { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #page-preprocessing .px-gate::after { display: none; }
}
@media (max-width: 640px) {
  #page-preprocessing .px-stage-track, #page-preprocessing .px-gates { grid-template-columns: minmax(0, 1fr); }
  #page-preprocessing .px-dim { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  #page-preprocessing .px-section, #page-preprocessing .px-skill { padding: 20px 18px; }
  #page-preprocessing .px-skill-main, #page-preprocessing .px-install { padding: 18px; }
  #page-preprocessing .px-skill-title-row { padding-bottom: 0; }
  #page-preprocessing .px-install-head { flex-direction: column; }
}