/* ============================================================
   service-ui.css — UI交互设计详情页
   布局：错位双行大字 Hero / 左图右文定义 / 横向五步流程 /
   交付物四列编号卡 / 视差数据条 / FAQ / CTA
   ============================================================ */

/* ---------- 1. Hero 错位标题 ---------- */
.ui-hero{
  min-height:90vh;position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;padding:150px 0 90px;
}
.ui-hero-bg{z-index:0}
.ui-hero-veil{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg,rgba(16,15,13,.88) 0%,rgba(16,15,13,.6) 55%,rgba(16,15,13,.4) 100%);
}
.ui-hero-inner{position:relative;z-index:2;max-width:720px}
.ui-crumb{font-size:13px;color:#CFC7B8;margin-bottom:24px;font-weight:600}
.ui-crumb a{color:#CFC7B8;transition:color .3s}
.ui-crumb a:hover{color:var(--coffee-bright)}
.ui-crumb em{font-style:normal;color:var(--coffee-bright)}
.ui-hero-title{
  font-size:clamp(36px,5.4vw,66px);font-weight:900;color:#fff;
  line-height:1.24;margin-bottom:22px;
}
.ui-ht-a{display:block}
.ui-ht-b{display:block;padding-left:64px}
.ui-gold{
  background:linear-gradient(120deg,#E8CD9D,#C9A87C);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ui-hero-sub{font-size:16px;color:#D8D0C2;line-height:1.9;margin-bottom:36px;max-width:540px}
.ui-hero-cta{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 2. 左图右文 ---------- */
.ui-what{background:#fff}
.ui-what-inner{display:grid;grid-template-columns:1fr 1.15fr;gap:64px;align-items:center}
.ui-what-media img{
  border-radius:var(--radius-lg);aspect-ratio:16/10;object-fit:cover;
  box-shadow:var(--shadow-lg);
}
.ui-what-text p{color:var(--text-2);line-height:1.9;margin-bottom:14px}
.ui-what-points{
  margin-top:26px;padding:24px 28px;border-radius:var(--radius-md);
  background:var(--coffee-bg);border-left:4px solid var(--coffee);
}
.ui-what-points p{margin:0 0 10px;color:var(--text);font-size:15px}
.ui-what-points p:last-child{margin-bottom:0}
.ui-what-points b{color:var(--coffee-deep);font-weight:800}

/* ---------- 3. 横向五步流程 ---------- */
.ui-flow{background:var(--coffee-bg)}
.ui-flow-line{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative;
}
.ui-flow-line::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(169,136,89,.5),transparent);
}
.ui-flow-item{
  position:relative;background:#fff;border-radius:var(--radius-md);
  padding:34px 22px 26px;box-shadow:var(--shadow-sm);text-align:center;
  transition:all .4s;
}
.ui-flow-item:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.uif-step{
  display:inline-block;font-size:12px;font-weight:900;letter-spacing:.18em;
  color:var(--coffee-deep);background:var(--coffee-bg);
  padding:6px 14px;border-radius:100px;margin-bottom:18px;
}
.ui-flow-item h3{font-size:17px;margin-bottom:10px}
.ui-flow-item p{font-size:13.5px;color:var(--text-2);line-height:1.8}

/* ---------- 4. 交付物四列 ---------- */
.ui-deliver-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.ui-del{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:38px 26px 30px;overflow:hidden;
  transition:all .4s;
}
.ui-del:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.ui-del b{
  display:block;font-size:52px;font-weight:900;line-height:1;
  color:var(--coffee-bg-2);margin-bottom:20px;
}
.ui-del h3{font-size:18px;margin-bottom:10px}
.ui-del p{font-size:14px;color:var(--text-2);line-height:1.8}
.ui-del::after{
  content:"";position:absolute;left:0;bottom:0;height:4px;width:0;
  background:var(--grad-coffee);transition:width .4s;
}
.ui-del:hover::after{width:100%}

.ui-relate{
  margin-top:40px;padding:22px 28px;border-radius:var(--radius-md);
  background:var(--coffee-bg);display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.ui-relate span{font-weight:800;color:var(--ink);flex-shrink:0}
.ui-relate a{
  padding:7px 16px;border-radius:100px;background:#fff;
  color:var(--coffee-deep);font-weight:700;transition:all .3s;font-size:14px;
}
.ui-relate a:hover{background:var(--grad-coffee);color:#fff}

/* ---------- 5. 数据条 ---------- */
.ui-nums{position:relative;overflow:hidden;padding:90px 0;background:var(--ink)}
.ui-nums-bg{z-index:0}
.ui-nums-veil{position:absolute;inset:0;z-index:1;background:rgba(16,15,13,.82)}
.ui-nums-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;
}
.ui-num b{
  display:block;font-size:clamp(36px,4.4vw,54px);font-weight:900;
  color:var(--coffee-bright);line-height:1.1;font-variant-numeric:tabular-nums;
}
.ui-num span{font-size:14px;color:#CFC7B8;margin-top:10px;display:block}

/* ---------- 6. FAQ ---------- */
.ui-acc{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:box-shadow .3s;
}
.acc-item.open{box-shadow:var(--shadow-md);border-color:var(--coffee)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;text-align:left;font-size:17px;font-weight:800;color:var(--ink);
}
.acc-head svg{width:18px;height:18px;color:var(--coffee-deep);flex-shrink:0;transition:transform .35s}
.acc-item.open .acc-head svg{transform:rotate(180deg)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .4s ease}
.acc-panel p{padding:0 28px 24px;color:var(--text-2);font-size:15px;line-height:1.9}
.acc-panel a{color:var(--coffee-deep);font-weight:700;text-decoration:underline}

/* ---------- 7. CTA ---------- */
.ui-cta{position:relative;overflow:hidden;background:var(--ink);text-align:center}
.ui-cta-bg{z-index:0}
.ui-cta-veil{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(16,15,13,.9),rgba(16,15,13,.72))}
.ui-cta-inner{position:relative;z-index:2}
.ui-cta-title{font-size:clamp(28px,4vw,44px);color:#fff;font-weight:900;line-height:1.4;margin-bottom:18px}
.ui-cta-sub{color:#CFC7B8;font-size:16px;margin-bottom:36px}
.ui-cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .ui-what-inner{grid-template-columns:1fr;gap:40px}
  .ui-flow-line{grid-template-columns:repeat(2,1fr)}
  .ui-flow-line::before{display:none}
  .ui-deliver-grid{grid-template-columns:repeat(2,1fr)}
  .ui-nums-inner{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .ui-ht-b{padding-left:0}
}
@media (max-width:640px){
  .ui-flow-line,.ui-deliver-grid{grid-template-columns:1fr}
}