/* ============================================================
   wuliu.css · 物流运输行业网站建设
   视觉语言：横向交替图文行 + 深色功能通栏 + 叠图案例卡
   点缀色：晴空蓝 #0284C7
   ============================================================ */

.banner-wuliu{background-image:url('../images/banner-city.jpg')}

/* ---------- 痛点：横向三卡 ---------- */
.wt-pain{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.wt-pain-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:38px 32px;position:relative;overflow:hidden;transition:all var(--trans);
}
.wt-pain-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:#0284C7;
  transform:scaleY(0);transform-origin:top;transition:transform var(--trans);
}
.wt-pain-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.wt-pain-card:hover::before{transform:scaleY(1)}
.wt-pain-no{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2px;color:#0284C7;
  background:#E0F2FE;border-radius:6px;padding:4px 12px;margin-bottom:18px;
}
.wt-pain-card h3{font-size:20px;margin-bottom:12px}
.wt-pain-card p{color:var(--c-text-2);font-size:15px}

/* ---------- 怎么做：横向交替图文行 ---------- */
.wt-how{background:var(--c-ice-2)}
.wt-row{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.wt-row:last-child{margin-bottom:0}
.wt-row-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.wt-row-media img{width:100%}
.wt-row-tag{
  display:inline-block;font-size:13px;font-weight:700;color:#0284C7;background:#E0F2FE;
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.wt-row-text h3{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px;line-height:1.35}
.wt-row-text p{color:var(--c-text-2);margin-bottom:14px;font-size:15.5px}
.wt-row-flip .wt-row-media{order:2}

/* ---------- 定制功能：深色通栏 ---------- */
.wt-featband{
  background:linear-gradient(135deg,#0F2B4C 0%,#123A63 60%,#0E4D7E 100%);
  padding:96px 0;position:relative;overflow:hidden;
}
.wt-featband::before{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(125,191,255,.18);
}
.wt-featband::after{
  content:"";position:absolute;left:-90px;bottom:-90px;width:260px;height:260px;border-radius:50%;
  background:rgba(56,189,248,.08);
}
.wt-feat-head{max-width:720px;margin:0 auto 52px;text-align:center}
.wt-feat-head h2{color:#fff;font-size:clamp(26px,3.2vw,38px);margin-bottom:14px}
.wt-feat-head p{color:#A9C4E8}
.sec-eyebrow.light{background:rgba(125,191,255,.16);color:#7DD3FC}
.sec-eyebrow.light::before{background:#7DD3FC}
.wt-feats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;z-index:2}
.wt-feat{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;
  padding:26px 24px;backdrop-filter:blur(4px);transition:all var(--trans);
}
.wt-feat:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.wt-feat svg{width:30px;height:30px;fill:#7DD3FC;margin-bottom:14px}
.wt-feat b{display:block;color:#fff;font-size:16.5px;margin-bottom:6px}
.wt-feat span{color:#A9C4E8;font-size:13.5px;line-height:1.6}

/* ---------- 案例：叠图卡 ---------- */
.wt-cases{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.wt-case{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;display:block;
  box-shadow:var(--shadow);
}
.wt-case img{width:100%;transition:transform .6s ease}
.wt-case:hover img{transform:scale(1.05)}
.wt-case-mask{
  position:absolute;left:0;right:0;bottom:0;padding:26px 26px 24px;
  background:linear-gradient(to top,rgba(15,31,61,.92) 0%,rgba(15,31,61,.55) 60%,transparent 100%);
  color:#fff;
}
.wt-case-tag{
  display:inline-block;font-size:12.5px;background:#0284C7;color:#fff;
  padding:3px 12px;border-radius:999px;margin-bottom:10px;
}
.wt-case-mask h3{color:#fff;font-size:20px;margin-bottom:8px}
.wt-case-mask p{color:#C9DAF5;font-size:14px;line-height:1.6}

/* ---------- FAQ ---------- */
.wt-faqsec{background:var(--c-ice-2)}
.wt-faq{max-width:860px;margin:0 auto;display:grid;gap:16px}
.wt-faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:22px 28px;
  transition:box-shadow var(--trans);
}
.wt-faq-item[open]{box-shadow:var(--shadow)}
.wt-faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-weight:700;color:var(--c-primary);font-size:16.5px;cursor:pointer;list-style:none;
}
.wt-faq-item summary::-webkit-details-marker{display:none}
.wt-faq-item summary i{
  width:10px;height:10px;border-right:2px solid #0284C7;border-bottom:2px solid #0284C7;
  transform:rotate(45deg);transition:transform var(--trans);flex-shrink:0;margin-top:-4px;
}
.wt-faq-item[open] summary i{transform:rotate(-135deg)}
.wt-faq-item p{margin-top:14px;color:var(--c-text-2);font-size:15px;line-height:1.8}
.wt-faq-item p a{color:#0284C7;text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .wt-pain{grid-template-columns:1fr;gap:18px}
  .wt-feats{grid-template-columns:1fr 1fr}
  .wt-row{grid-template-columns:1fr;gap:28px}
  .wt-row-flip .wt-row-media{order:0}
}
@media (max-width:640px){
  .wt-feats{grid-template-columns:1fr}
  .wt-cases{grid-template-columns:1fr}
  .wt-featband{padding:64px 0}
}