:root {
  --css365jz-bg: #0b1021;
  --css365jz-card: #131935;
  --css365jz-accent: #3751ff;
  --css365jz-accent-soft: #4f66ff;
  --css365jz-text: #e9ecf5;
  --css365jz-muted: #9aa5c4;
  --css365jz-line: #1f2745;
  --css365jz-success: #19c79a;
  --css365jz-radius: 14px;
  --css365jz-shadow: 0 18px 38px rgba(0,0,0,0.28);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body.z51acdbody {
  font-family: "Segoe UI", "PingFang SC", Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(55,81,255,0.08), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(25,199,154,0.08), transparent 32%),
              var(--css365jz-bg);
  color: var(--css365jz-text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.z51acdcontainer {
  width: min(1180px, 92%);
  margin: 0 auto;
}

.z51acdtopbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(11,16,33,0.82);
  border-bottom: 1px solid var(--css365jz-line);
}
.z51acdtopbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.z51acdbrand {
  font-weight: 700;
  letter-spacing: 0.4px;
}
.z51acdnav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
.z51acdnav__item {
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.z51acdnav__item:hover {
  background: rgba(55,81,255,0.16);
  color: #fff;
}

.z51acdmain { padding-bottom: 60px; }
.z51acdhero {
  padding: 72px 0 42px;
}
.z51acdhero__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}
.z51acdhero__text h1 {
  font-size: clamp(26px, 4vw, 36px);
  margin: 12px 0 12px;
}
.z51acdkicker {
  color: var(--css365jz-success);
  font-weight: 600;
  letter-spacing: 0.6px;
}
.z51acdlead {
  color: var(--css365jz-muted);
  margin-bottom: 16px;
}
.z51acdbullets {
  margin-top: 14px;
  display: grid;
  gap: 6px;
}
.z51acdbullets li {
  position: relative;
  padding-left: 16px;
  color: var(--css365jz-muted);
}
.z51acdbullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--css365jz-accent);
}

.z51acdhero__card {
  display: flex;
  justify-content: flex-end;
}
.z51acdhero__img {
  width: 100%;
  max-width: 520px;
  height: auto;
  display: block;
  border-radius: var(--css365jz-radius);
  border: 1px solid var(--css365jz-line);
  box-shadow: var(--css365jz-shadow);
  object-fit: contain;
  background: linear-gradient(145deg, rgba(55,81,255,0.12), rgba(25,199,154,0.08));
}
.z51acdcard {
  background: var(--css365jz-card);
  border: 1px solid var(--css365jz-line);
  border-radius: var(--css365jz-radius);
  box-shadow: var(--css365jz-shadow);
  padding: 20px;
}
.z51acdcard--accent {
  background: linear-gradient(145deg, rgba(55,81,255,0.18), rgba(25,199,154,0.10));
}

.z51acdsteps {
  margin: 10px 0 12px;
  padding-left: 16px;
  color: var(--css365jz-muted);
}
.z51acdsteps li { margin-bottom: 6px; }

.z51acdbadges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.z51acdtag {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--css365jz-line);
  color: var(--css365jz-text);
  font-size: 12px;
}
.z51acdbadges--wrap {
  gap: 10px;
}

.z51acdcta__row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 10px 0;
}
.z51acdbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.z51acdbtn:hover {
  transform: translateY(-1px);
}
.z51acdbtn--primary {
  background: linear-gradient(135deg, var(--css365jz-accent), var(--css365jz-accent-soft));
  color: #fff;
  box-shadow: 0 12px 24px rgba(55,81,255,0.24);
}
.z51acdbtn--ghost {
  border: 1px solid var(--css365jz-line);
  color: var(--css365jz-text);
}

.z51acdsection {
  padding: 54px 0;
  scroll-margin-top: 72px;
}
.z51acdblock--accent .z51acdcard {
  border-color: var(--css365jz-line);
  background: rgba(255,255,255,0.03);
  box-shadow: 0 10px 24px rgba(0,0,0,0.22);
}
.z51acdblock--accent .z51acdcard--glass {
  background: rgba(255,255,255,0.025);
  border-color: rgba(255,255,255,0.12);
}
.z51acdblock--accent .z51acdpanel {
  border-color: var(--css365jz-line);
  background: rgba(255,255,255,0.02);
}
.z51acdblock--soft {
  background: rgba(13,18,33,0.55);
}
.z51acdblock--download {
  background: radial-gradient(circle at 20% 20%, rgba(55,81,255,0.08), transparent 45%),
              radial-gradient(circle at 80% 0%, rgba(25,199,154,0.08), transparent 40%),
              rgba(10,14,28,0.9);
}
.z51acdblock--download .z51acdcard {
  border-color: rgba(55,81,255,0.4);
  background: linear-gradient(145deg, rgba(55,81,255,0.18), rgba(25,199,154,0.10));
  box-shadow: 0 20px 44px rgba(55,81,255,0.25), 0 12px 30px rgba(0,0,0,0.35);
}
.z51acdblock--download .z51acdcard--glass {
  border-color: rgba(55,81,255,0.48);
  background: linear-gradient(150deg, rgba(55,81,255,0.22), rgba(25,199,154,0.14));
  box-shadow: 0 22px 48px rgba(55,81,255,0.28), 0 14px 34px rgba(0,0,0,0.36);
}
.z51acdblock--download .z51acdpanel {
  border-color: rgba(55,81,255,0.25);
}
.z51acdblock--download .z51acdpill {
  background: rgba(55,81,255,0.16);
  border-color: rgba(55,81,255,0.45);
}
.z51acdblock--download .z51acdtag {
  background: rgba(55,81,255,0.12);
  border-color: rgba(55,81,255,0.32);
}
.z51acdblock--download .z51acdbtn--primary {
  background: linear-gradient(135deg, #5a6cff, #2dd0a7);
  box-shadow: 0 12px 28px rgba(90,108,255,0.35), 0 10px 22px rgba(0,0,0,0.28);
}
.z51acdlayout--lined {
  gap: 16px;
}
.z51acdlayout--lined > .z51acdlayout__grid,
.z51acdlayout--lined > .z51acdlayout__grid--3 {
  border-top: 1px solid var(--css365jz-line);
  padding-top: 12px;
}
.z51acdsection--muted {
  background: rgba(19,25,53,0.55);
  border-top: 1px solid var(--css365jz-line);
  border-bottom: 1px solid var(--css365jz-line);
}
.z51acdsection__head {
  margin-bottom: 18px;
}
.z51acdsection__head h2 {
  margin-bottom: 6px;
}
.z51acdsection__head p {
  color: var(--css365jz-muted);
}

.z51acdfeatures,
.z51acdgrid--3,
.z51acdgrid--2 {
  display: grid;
  gap: 16px;
}
.z51acdgrid--3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.z51acdgrid--2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.z51acdfeature,
.z51acdpanel {
  padding: 18px;
  border-radius: var(--css365jz-radius);
  border: 1px solid var(--css365jz-line);
  background: rgba(255,255,255,0.02);
}
.z51acdfeature h3,
.z51acdpanel h3 {
  margin-bottom: 6px;
}
.z51acdfeature p,
.z51acdpanel p {
  color: var(--css365jz-muted);
}
.z51acdpanel--compact {
  padding: 14px;
}

.z51acdsplit {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: start;
}
.z51acdsplit--center { align-items: center; }

.z51acdlist {
  display: grid;
  gap: 8px;
  color: var(--css365jz-muted);
  padding-left: 14px;
}
.z51acdlist li {
  position: relative;
  padding-left: 12px;
}
.z51acdlist li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--css365jz-accent);
}
.z51acdlist--plain {
  padding-left: 0;
}
.z51acdlist--plain li {
  padding-left: 0;
}
.z51acdlist--plain li::before { content: ""; }

.z51acdfaq {
  display: grid;
  gap: 12px;
}
.z51acdfaq__grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: stretch;
}
.z51acdfaq__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 16px;
  border-radius: var(--css365jz-radius);
  border: 1px solid var(--css365jz-line);
  background: rgba(255,255,255,0.02);
}
.z51acdfaq__item h3 { margin-bottom: 6px; }
.z51acdfaq__item p { color: var(--css365jz-muted); }
.z51acdfaq__item--tight {
  padding: 14px;
}

.z51acdfooter {
  border-top: 1px solid var(--css365jz-line);
  padding: 28px 0 32px;
  background: rgba(11,16,33,0.9);
}
.z51acdfooter__grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.z51acdfooter__note {
  margin-top: 16px;
  color: var(--css365jz-muted);
}
.z51acdsmall { font-size: 13px; color: var(--css365jz-muted); }

/* 响应式微调 */
@media (max-width: 960px) {
  .z51acdsection { padding: 46px 0; }
  .z51acdtopbar__inner { padding: 12px 0; }
  .z51acdhero { padding: 56px 0 32px; }
  .z51acdhero__grid { gap: 18px; }
  .z51acdcard { padding: 16px; }
  .z51acdcard--accent { padding: 16px; }
  .z51acdpanel { padding: 16px; }
  .z51acdpanel--compact { padding: 12px; }
  .z51acdlayout__grid { gap: 12px; }
  .z51acdlayout__grid--3 { gap: 12px; }
  .z51acdbadges { gap: 6px; }
  .z51acdbadges--wrap { gap: 8px; }
  .z51acdstats { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
  .z51acdtopbar__inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .z51acdnav { width: 100%; justify-content: flex-start; }
}
@media (max-width: 720px) {
  .z51acdnav { width: 100%; flex-wrap: wrap; gap: 10px; }
  .z51acdhero { padding-top: 46px; }
}
@media (max-width: 520px) {
  .z51acdcta__row { flex-direction: column; }
  .z51acdnav { flex-wrap: nowrap; overflow-x: auto; gap: 8px; padding-bottom: 6px; }
  .z51acdnav__item { padding: 8px 10px; }
}

/* O易板块专用布局 */
.z51acdlayout {
  display: grid;
  gap: 18px;
}
.z51acdlayout__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.z51acdlayout__grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.z51acdpill {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(55,81,255,0.12);
  color: #dfe5ff;
  border: 1px solid rgba(55,81,255,0.35);
  font-weight: 600;
  font-size: 13px;
}
.z51acdcard--glass {
  background: linear-gradient(145deg, rgba(55,81,255,0.12), rgba(25,199,154,0.08));
}
.z51acdstats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.z51acdstat {
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--css365jz-line);
  background: rgba(255,255,255,0.03);
}
.z51acdstat__value {
  font-size: 18px;
  font-weight: 700;
}
.z51acdstat__label {
  color: var(--css365jz-muted);
  font-size: 13px;
}
.z51acdsteps--tight li {
  margin-bottom: 4px;
}
.z51acdchecklist {
  display: grid;
  gap: 8px;
  margin: 12px 0;
  color: var(--css365jz-text);
}
.z51acdchecklist li {
  position: relative;
  padding-left: 18px;
}
.z51acdchecklist li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--css365jz-success);
  font-size: 12px;
}
.z51acdchecklist--inline {
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 8px;
  padding: 10px;
  border: 1px dashed var(--css365jz-line);
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  font-size: 13px;
  color: var(--css365jz-muted);
}
@media (max-width: 640px) {
  .z51acdsection { padding: 40px 0; }
  .z51acdhero__grid { gap: 16px; }
  .z51acdcard { padding: 14px; }
  .z51acdcard--accent { padding: 14px; }
  .z51acdfeature,
  .z51acdpanel { padding: 14px; }
  .z51acdpanel--compact { padding: 12px; }
  .z51acdlist { gap: 6px; }
  .z51acdcta__row { gap: 8px; }
  .z51acdlayout__grid { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
  .z51acdlayout__grid--3 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
  .z51acdstats { gap: 8px; }
  .z51acdchecklist--inline { grid-auto-flow: row; grid-auto-columns: auto; gap: 6px; }
}