/* ============================================================
   案例长图详情页（clf- 前缀）· 2026-10-22
   结构：顶部导航(subnav 复用) + 一张完整长图 + 返回按钮 + 页脚(subfoot 复用)
   规矩：图片按原比例、不裁剪；桌面居中 max-width 900px；手机 100%
   ============================================================ */

.clf-stage{
  padding: clamp(28px,4.5vh,56px) 0 clamp(36px,5.5vh,64px);
}

.clf-fig{
  margin: 0 auto;
  max-width: 900px;
  padding: 0;
}

.clf-fig img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: 3px;
  box-shadow: 0 30px 64px -40px rgba(25,25,23,.30);
}

/* 底部返回区 */
.clf-backrow{
  max-width: 900px;
  margin: clamp(24px,3.5vh,40px) auto 0;
  padding: 0;
  text-align: center;
}

.clf-back{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-size: 15px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease;
}

.clf-back:hover{
  border-color: var(--ink);
}

.clf-back .arw{
  font-size: 15px;
  color: var(--gold-d);
}

@media (max-width: 640px){
  .clf-stage{ padding: 20px 0 30px; }
  .clf-fig{ max-width: 100%; }
  .clf-fig img{ border-radius: 0; box-shadow: none; }
  .clf-backrow{ margin-top: 22px; }
  .clf-back{ padding: 12px 24px; font-size: 14.5px; }
}