/* ==========================================================================
   Apple 风格产品页样式  ——  全部作用域限定在 .apple 之下，
   避免与 bootstrap.css / style.css / main.css 的全局规则冲突。
   用于 products-evap / htsppp / representation / powder 等产品页。
   ========================================================================== */

.apple{
  --ink:#1d1d1f;
  --ink-2:#6e6e73;
  --line:#d2d2d7;
  --bg-alt:#f5f5f7;
  --accent:#1a6cff;
  --maxw:1024px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "PingFang SC", "Source Han Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-family:var(--font);
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
.apple *{box-sizing:border-box}
.apple .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.apple .band{padding:clamp(72px,12vw,140px) 0}

/* ---------- Hero（顶部留白让出固定磨砂导航栏） ---------- */
.apple .hero{text-align:center;padding-top:clamp(96px,14vw,168px)}
.apple .eyebrow{color:var(--accent);font-size:clamp(15px,2.4vw,21px);font-weight:600;letter-spacing:.01em}
.apple .hero h1{
  font-size:clamp(3rem,10vw,6.4rem);font-weight:700;letter-spacing:-.03em;
  line-height:1.03;margin:.12em 0 .1em;color:var(--ink);
}
.apple .hero .tagline{
  font-size:clamp(1.4rem,4.2vw,2.6rem);font-weight:600;letter-spacing:-.01em;color:var(--ink);
}
.apple .hero .lede{
  max-width:660px;margin:22px auto 0;color:var(--ink-2);
  font-size:clamp(16px,2.4vw,20px);line-height:1.6;
}
.apple .hero-media{margin-top:clamp(28px,5vw,56px)}
.apple .hero-media img{width:100%;max-width:1120px;display:block;margin:0 auto}
.apple .hero-media-pair{
  display:grid;grid-template-columns:minmax(0,2.05fr) minmax(0,1fr);
  gap:clamp(14px,2vw,24px);align-items:end;max-width:1120px;margin-left:auto;margin-right:auto;
}
.apple .hero-media-pair .hero-media-item{
  min-width:0;margin:0;display:flex;align-items:center;justify-content:center;overflow:hidden;
  border-radius:18px;background:#fff;
}
.apple .hero-media-pair .hero-media-item img{width:100%;max-width:none;height:auto;margin:0}

.apple .cta-row{margin-top:30px;display:flex;gap:26px;justify-content:center;flex-wrap:wrap}
.apple .btn{
  font-size:clamp(15px,2vw,19px);text-decoration:none;font-weight:500;
  padding:11px 24px;border-radius:980px;transition:all .2s;display:inline-block;
}
.apple .btn-primary{background:var(--accent);color:#fff}
.apple .btn-primary:hover{opacity:.88}
.apple .btn-link{color:var(--accent)}
.apple .btn-link:hover{text-decoration:underline}
.apple .btn-link::after{content:" ›"}

/* ---------- 数字栈（深色） ---------- */
.apple .stats{background:var(--ink);color:#fff}
.apple .stats h2{
  text-align:center;font-size:clamp(1.6rem,4.5vw,2.8rem);font-weight:700;
  letter-spacing:-.02em;margin-bottom:clamp(36px,6vw,64px);color:#fff;
}
.apple .stat-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:clamp(28px,4vw,48px);text-align:center;
}
.apple .stat .num{
  font-size:clamp(2.4rem,5vw,4rem);font-weight:700;letter-spacing:-.03em;
  line-height:1;white-space:nowrap;
  background:linear-gradient(180deg,#fff,#b8b8bd);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.apple .stat .num sup{
  font-size:.5em;vertical-align:super;letter-spacing:0;
  /* The parent number uses clipped gradient text. Give superscripts their own
     fill so glyphs raised above the parent line box are not made transparent. */
  color:#fff;-webkit-text-fill-color:#fff;
}
.apple .stat .unit{margin-top:8px;color:#c7c7cc;font-size:clamp(13px,1.7vw,16px);font-weight:600}
.apple .stat .cap{margin-top:8px;color:#86868b;font-size:clamp(12px,1.6vw,15px)}

/* ---------- 交替图文特性块 ---------- */
.apple .feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.apple .feature.alt .f-text{order:2}
.apple .f-text h3{font-size:clamp(1.8rem,4.6vw,3rem);font-weight:700;letter-spacing:-.02em;line-height:1.08;color:var(--ink)}
.apple .f-text p{margin-top:18px;color:var(--ink-2);font-size:clamp(16px,2.2vw,19px);line-height:1.65}
.apple .f-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.apple .f-tags span{
  font-size:14px;color:var(--ink);background:var(--bg-alt);border:1px solid var(--line);
  padding:7px 14px;border-radius:980px;
}
.apple .f-visual{
  border-radius:22px;min-height:300px;display:flex;align-items:center;justify-content:center;
  padding:36px;overflow:hidden;
}
.apple .f-visual img{width:100%;border-radius:14px}
.apple .v-gray{background:var(--bg-alt)}
.apple .v-dark{background:radial-gradient(120% 120% at 30% 20%,#2a2a2e 0%,#131316 70%);color:#fff}
.apple .v-accent{background:radial-gradient(120% 120% at 30% 20%,#2b5cff 0%,#0b2ea8 75%);color:#fff}

/* 视觉位承载演示视频：去掉内边距让视频铺满圆角容器，保持原始宽高比不裁切 */
.apple .f-visual.v-media{padding:0;background:#000}
.apple .f-visual video{width:100%;height:auto;display:block;border-radius:14px}

/* 大关键词面板 */
.apple .kw{text-align:center;color:#fff}
.apple .kw .big{font-size:clamp(2.6rem,8vw,4.6rem);font-weight:700;letter-spacing:-.03em;line-height:1.02}
.apple .kw .big sup{font-size:.45em;vertical-align:super}
.apple .kw .sub{margin-top:12px;font-size:clamp(14px,2vw,17px);color:rgba(255,255,255,.7)}

/* 工艺流程 */
.apple .flow{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center}
.apple .flow .node{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;padding:16px 20px;border-radius:14px;text-align:center;min-width:96px}
.apple .flow .node b{display:block;font-size:18px;font-weight:600}
.apple .flow .node em{font-style:normal;font-size:12px;color:#a1a1a6}
.apple .flow .arrow{color:#5b8cff;font-size:22px;font-weight:700}

/* 组合联动 */
.apple .combo{display:flex;align-items:center;gap:16px;color:var(--ink);width:100%}
.apple .combo .chip{flex:1;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 12px;text-align:center}
.apple .combo .chip b{display:block;font-size:16px;font-weight:600}
.apple .combo .chip em{font-style:normal;font-size:12px;color:var(--ink-2)}
.apple .combo .plus{font-size:24px;color:var(--accent);font-weight:700}

/* ---------- 应用场景 ---------- */
.apple .scenes{background:var(--bg-alt);text-align:center}
.apple .scenes h2{font-size:clamp(1.8rem,4.6vw,3rem);font-weight:700;letter-spacing:-.02em;margin-bottom:12px;color:var(--ink)}
.apple .scenes .sub{color:var(--ink-2);font-size:clamp(16px,2.2vw,19px);margin-bottom:clamp(36px,5vw,56px)}
.apple .scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:20px}
.apple .scene{background:#fff;border-radius:18px;padding:40px 22px;box-shadow:0 1px 3px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s}
.apple .scene:hover{transform:translateY(-6px);box-shadow:0 14px 40px rgba(0,0,0,.10)}
.apple .scene .ic{font-size:38px;line-height:1}
.apple .scene h4{margin-top:16px;font-size:19px;font-weight:600;color:var(--ink)}
.apple .scene p{margin-top:8px;color:var(--ink-2);font-size:14px}

/* ---------- 尾部 CTA ---------- */
.apple .final{text-align:center}
.apple .final h2{font-size:clamp(2rem,6vw,3.4rem);font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.apple .final p{margin-top:16px;color:var(--ink-2);font-size:clamp(16px,2.4vw,20px)}
.apple .final .cta-row{margin-top:32px}

/* ---------- 滚动渐显 ---------- */
.apple .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.apple .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .apple .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:760px){
  .apple .hero-media-pair{grid-template-columns:1fr;gap:20px}
  .apple .feature{grid-template-columns:1fr}
  .apple .feature.alt .f-text{order:0}
  .apple .f-visual{min-height:220px;padding:26px}
  .apple .combo{flex-direction:column}
}