/* ==========================================================================
   名爵app下载 内页骨架：交错式时间轴（Zigzag）
   Hero 左右分栏 + 左右交替的步骤行 + 横向版本条
   ========================================================================== */

:root {
  --ax-bg: #041b2b;
  --ax-deep: #082f49;
  --ax-cyan: #22d3ee;
  --ax-cyan-lt: #a5f3fc;
  --ax-text: #dff4fb;
  --ax-muted: #85a9bd;
  --ax-line: rgba(34, 211, 238, .18);
}

body.ax-page {
  background: var(--ax-bg);
  color: var(--ax-text);
}

.ax-page .site-header { background: rgba(4, 27, 43, .9); border-bottom-color: rgba(34, 211, 238, .16); }
.ax-page .brand-text { color: #fff; }
.ax-page .brand-mark { background: linear-gradient(140deg, #67e8f9, #0891b2); color: #04212e; box-shadow: 0 6px 18px rgba(8, 145, 178, .35); }
.ax-page .brand-text em { color: var(--ax-cyan); }
.ax-page .site-nav a { color: #8fb3c6; }
.ax-page .site-nav a:hover { color: #fff; background: rgba(34, 211, 238, .1); }
.ax-page .site-nav a.is-active { color: var(--ax-cyan-lt); background: rgba(34, 211, 238, .14); }
.ax-page .btn-login { background: linear-gradient(135deg, #67e8f9, #0891b2); color: #04212e; box-shadow: 0 8px 22px rgba(8, 145, 178, .34); }
.ax-page .nav-toggle { background: transparent; border-color: rgba(34, 211, 238, .3); }
.ax-page .nav-toggle span { background: var(--ax-cyan-lt); }

@media (max-width: 1080px) {
  .ax-page .site-nav { background: #082f49; border-bottom-color: rgba(34, 211, 238, .2); }
  .ax-page .site-nav a { color: #8fb3c6; }
}

/* ---------------- Hero ---------------- */
.ax-hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 84px;
  background:
    radial-gradient(680px 420px at 78% 10%, rgba(34, 211, 238, .2), transparent 66%),
    radial-gradient(520px 380px at 4% 90%, rgba(8, 145, 178, .14), transparent 70%),
    var(--ax-bg);
}

.ax-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(34, 211, 238, .05) 0 1px, transparent 1px 60px);
  mask-image: radial-gradient(ellipse at 40% 40%, #000, transparent 74%);
  -webkit-mask-image: radial-gradient(ellipse at 40% 40%, #000, transparent 74%);
  pointer-events: none;
}

.ax-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.ax-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--ax-cyan);
}

.ax-tag::before {
  content: "";
  width: 28px; height: 1px;
  background: var(--ax-cyan);
}

.ax-hero h1 {
  margin: 20px 0 18px;
  font-size: clamp(30px, 4.1vw, 46px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -.6px;
  color: #fff;
  text-wrap: balance;
}

.ax-hero h1 em { font-style: normal; color: var(--ax-cyan); }

.ax-hero .lead {
  font-size: 16px;
  line-height: 1.95;
  color: var(--ax-muted);
  max-width: 520px;
}

.ax-hero .lead strong { color: var(--ax-text); }

.ax-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 22px;
}

.ax-actions .btn-primary {
  background: linear-gradient(135deg, #67e8f9, #0891b2);
  color: #04212e;
  box-shadow: 0 16px 36px rgba(8, 145, 178, .32);
}

.ax-actions .btn-room {
  border-color: rgba(34, 211, 238, .3);
  background: rgba(34, 211, 238, .06);
  color: var(--ax-text);
}

.ax-actions .btn-room b { color: var(--ax-cyan); letter-spacing: 2px; }

.ax-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-family: var(--mono);
  font-size: 12px;
  color: #5e8598;
}

.ax-facts b { color: var(--ax-cyan-lt); font-weight: 700; }

.ax-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.ax-visual img {
  width: min(100%, 400px);
  border-radius: 18px;
  filter: drop-shadow(0 40px 70px rgba(0, 0, 0, .6));
}

.ax-visual .ring {
  position: absolute;
  inset: 6% 4%;
  border: 1px solid rgba(34, 211, 238, .18);
  border-radius: 24px;
  pointer-events: none;
}

/* ---------------- 交错时间轴 ---------------- */
.ax-section { padding: 86px 0; }

.ax-head { max-width: 700px; margin: 0 auto 54px; text-align: center; }

.ax-head .k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--ax-cyan);
}

.ax-head h2 {
  margin: 14px 0 12px;
  font-size: clamp(25px, 3.2vw, 36px);
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
}

.ax-head p { font-size: 15.5px; color: var(--ax-muted); }

.zig {
  position: relative;
  display: grid;
  gap: 0;
}

.zig::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--ax-line) 8%, var(--ax-line) 92%, transparent);
}

.zig-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 96px 1fr;
  align-items: center;
  padding: 26px 0;
}

.zig-row .node {
  grid-column: 2;
  justify-self: center;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--ax-bg);
  border: 1px solid var(--ax-cyan);
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ax-cyan-lt);
  box-shadow: 0 0 0 8px rgba(34, 211, 238, .06);
  z-index: 2;
}

.zig-row .box {
  padding: 26px 28px;
  border-radius: 14px;
  border: 1px solid rgba(34, 211, 238, .14);
  background: rgba(8, 47, 73, .5);
  transition: border-color .25s, transform .25s;
}

.zig-row .box:hover { border-color: rgba(34, 211, 238, .4); transform: translateY(-3px); }

.zig-row .box h3 { font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.zig-row .box p { font-size: 14px; line-height: 1.85; color: var(--ax-muted); }
.zig-row .box p strong { color: var(--ax-text); }
.zig-row .box .meta {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 1px;
  color: #4e7a8e;
}

.zig-row:nth-child(odd) .box { grid-column: 1; text-align: right; }
.zig-row:nth-child(odd) .box .meta { text-align: right; }
.zig-row:nth-child(even) .box { grid-column: 3; }

/* ---------------- 版本条 ---------------- */
.ax-versions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.ver-card {
  padding: 22px;
  border-radius: 12px;
  border: 1px solid rgba(34, 211, 238, .14);
  background: rgba(8, 47, 73, .45);
}

.ver-card .v {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--ax-cyan-lt);
}

.ver-card .d { font-family: var(--mono); font-size: 11.5px; color: #4e7a8e; margin-top: 4px; }
.ver-card h4 { margin: 12px 0 6px; font-size: 14.5px; font-weight: 800; color: #fff; }
.ver-card p { font-size: 12.5px; line-height: 1.7; color: var(--ax-muted); }

.ver-card.current {
  border-color: rgba(34, 211, 238, .45);
  background: rgba(34, 211, 238, .08);
}

/* ---------------- 安全提示 ---------------- */
.ax-warn {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  padding: 30px 32px;
  border-radius: 16px;
  border: 1px solid rgba(251, 191, 36, .3);
  background: rgba(251, 191, 36, .05);
}

.ax-warn .i {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(251, 191, 36, .14);
  color: #fbbf24;
  font-family: var(--mono);
  font-weight: 700;
}

.ax-warn h3 { font-size: 16.5px; font-weight: 800; color: #fde68a; margin-bottom: 8px; }
.ax-warn p { font-size: 14px; line-height: 1.85; color: #c9b98f; }
.ax-warn ul { margin-top: 12px; display: grid; gap: 7px; }
.ax-warn li { position: relative; padding-left: 18px; font-size: 13.5px; line-height: 1.75; color: #c9b98f; }
.ax-warn li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fbbf24;
}

/* ---------------- 相关 ---------------- */
.ax-related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.ax-related a {
  padding: 22px;
  border-radius: 12px;
  border: 1px solid rgba(34, 211, 238, .14);
  background: rgba(8, 47, 73, .4);
  transition: border-color .2s, transform .2s;
}

.ax-related a:hover { border-color: rgba(34, 211, 238, .45); transform: translateY(-3px); }
.ax-related strong { display: block; font-size: 14.5px; color: #fff; margin-bottom: 4px; }
.ax-related span { font-size: 12.5px; color: var(--ax-muted); }

/* 入场 */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s, transform .7s; }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1000px) {
  .ax-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .ax-visual { order: -1; }
  .ax-visual img { width: min(100%, 320px); }
  .ax-versions { grid-template-columns: 1fr 1fr; }
  .ax-related { grid-template-columns: 1fr; }

  .zig::before { left: 27px; }
  .zig-row { grid-template-columns: 54px 1fr; gap: 18px; padding: 18px 0; }
  .zig-row .node { grid-column: 1; }
  .zig-row:nth-child(odd) .box,
  .zig-row:nth-child(even) .box { grid-column: 2; text-align: left; }
  .zig-row:nth-child(odd) .box .meta { text-align: left; }
}

@media (max-width: 640px) {
  .ax-hero { padding: 50px 0 62px; }
  .ax-hero h1 { font-size: 29px; }
  .ax-actions .btn { width: 100%; }
  .ax-section { padding: 60px 0; }
  .ax-head { margin-bottom: 34px; }
  .ax-versions { grid-template-columns: 1fr; }
  .zig-row .box { padding: 20px; }
  .ax-warn { grid-template-columns: 1fr; padding: 22px; }
}