/* ============================================================
   60cpappxiazai.html — 60cpapp 下载
   Skeleton: two-column download hero with floating spec chips →
   platform cards → requirement table → accordion install steps →
   safety notes → CTA
   ============================================================ */

.dl-hero { padding: 64px 0 80px; position: relative; overflow: hidden; }
.dl-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 420px at 82% 22%, rgba(224,182,96,.12), transparent 60%);
  pointer-events: none;
}
.dl-inner { position: relative; display: grid; grid-template-columns: 1fr .82fr; gap: 56px; align-items: center; }
.dl-copy h1 { font-size: clamp(30px, 4.2vw, 52px); font-weight: 800; line-height: 1.14; letter-spacing: -.02em; }
.dl-copy h1 small {
  display: block; font-size: .4em; font-weight: 600; color: var(--muted);
  letter-spacing: .06em; margin-top: 14px;
}
.dl-copy .lead { margin-top: 20px; max-width: 480px; }
.dl-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }

.dl-chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 30px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 13px; border-radius: 9px; font-size: 12.5px; color: var(--muted);
  border: 1px solid var(--line); background: rgba(255,255,255,.03);
}
.chip b { color: var(--gold-2); font-weight: 600; }
.chip svg { width: 13px; height: 13px; color: var(--green); }

.dl-figure { position: relative; }
.dl-figure img {
  width: 100%; height: auto; border-radius: 24px;
  border: 1px solid var(--line-strong); box-shadow: var(--shadow);
}
.dl-figure .badge {
  position: absolute; right: -14px; top: 26px;
  padding: 12px 16px; border-radius: 12px; font-size: 12px; color: var(--muted);
  background: rgba(12,17,30,.94); border: 1px solid rgba(224,182,96,.3);
  backdrop-filter: blur(10px); box-shadow: 0 16px 40px -22px #000;
}
.dl-figure .badge strong { display: block; color: var(--gold-2); font-size: 14px; margin-bottom: 2px; }

/* ---------- platform cards ---------- */
.platforms { padding: 0 0 88px; }
.plat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.plat {
  padding: 30px 26px; border-radius: 18px;
  border: 1px solid var(--line); background: var(--panel);
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color .22s, transform .22s;
}
.plat:hover { border-color: rgba(224,182,96,.34); transform: translateY(-3px); }
.plat .os { display: flex; align-items: center; gap: 12px; }
.plat .os span {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(224,182,96,.1); color: var(--gold-2);
}
.plat .os svg { width: 20px; height: 20px; }
.plat .os strong { font-size: 16px; }
.plat .os em { display: block; font-style: normal; font-size: 11.5px; color: var(--muted-2); }
.plat p { font-size: 13px; color: var(--muted); }
.plat dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; margin: 8px 0 0; font-size: 12.5px; }
.plat dt { color: var(--muted-2); }
.plat dd { margin: 0; color: var(--text); }
.plat .note { margin-top: auto; padding-top: 14px; font-size: 12px; color: var(--muted-2); border-top: 1px solid var(--line); }

/* ---------- requirements table ---------- */
.req { padding: 0 0 88px; }
.req-table { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.req-row {
  display: grid; grid-template-columns: 1.1fr 1fr 1fr;
  gap: 16px; padding: 16px 24px; border-top: 1px solid var(--line); font-size: 13.5px;
}
.req-row:first-child {
  border-top: 0; background: rgba(255,255,255,.04);
  font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2);
}
.req-row span:first-child { color: var(--muted); }
.req-row span:not(:first-child) { color: var(--text); }

/* ---------- accordion steps ---------- */
.install { padding: 0 0 88px; }
.acc { border-top: 1px solid var(--line); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary {
  list-style: none; cursor: pointer; padding: 22px 46px 22px 0; position: relative;
  display: flex; align-items: center; gap: 16px;
}
.acc summary::-webkit-details-marker { display: none; }
.acc .num {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; font-weight: 700;
  color: var(--gold-2); background: rgba(224,182,96,.09); border: 1px solid rgba(224,182,96,.22);
  flex: none;
}
.acc summary strong { font-size: 15.5px; font-weight: 600; }
.acc summary::after {
  content: "+"; position: absolute; right: 8px; font-size: 20px; font-weight: 300; color: var(--gold);
  transition: transform .25s;
}
.acc details[open] summary::after { transform: rotate(45deg); }
.acc .body { padding: 0 0 24px 46px; color: var(--muted); font-size: 14px; }
.acc .body ol { display: flex; flex-direction: column; gap: 9px; margin-top: 4px; }
.acc .body li { padding-left: 18px; position: relative; }
.acc .body li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--gold); opacity: .55;
}

/* ---------- safety ---------- */
.safety {
  padding: 40px; border-radius: 20px;
  border: 1px solid rgba(70,211,154,.24);
  background: linear-gradient(150deg, rgba(70,211,154,.07), rgba(70,211,154,.012));
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.safety h2 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 12px; }
.safety p { font-size: 14px; color: var(--muted); }
.safety ul { display: flex; flex-direction: column; gap: 12px; }
.safety li {
  display: flex; gap: 11px; font-size: 13.5px; color: var(--muted);
  padding: 13px 16px; border-radius: 11px; background: rgba(0,0,0,.22); border: 1px solid var(--line);
}
.safety li svg { width: 16px; height: 16px; color: var(--green); flex: none; margin-top: 3px; }
.safety li b { color: var(--text); font-weight: 600; }

@media (max-width: 980px) {
  .dl-inner { grid-template-columns: 1fr; gap: 38px; }
  .dl-figure .badge { right: 12px; }
  .plat-grid { grid-template-columns: 1fr 1fr; }
  .safety { grid-template-columns: 1fr; padding: 30px; }
}
@media (max-width: 640px) {
  .dl-hero { padding: 44px 0 56px; }
  .dl-copy h1 { font-size: 29px; }
  .plat-grid { grid-template-columns: 1fr; }
  .req-row { grid-template-columns: 1fr; gap: 4px; }
  .req-row:first-child { display: none; }
  .req-row span:not(:first-child)::before { content: "— "; color: var(--muted-2); }
  .acc .body { padding-left: 0; }
}