/* ==========================================================================
   主视觉实拍图组件（2026-10-16）
   · 首页：原图 / 修后 滑动对比   `#hero-cmp`
   · 人工精修页：多版本切换器     `#mh-switch` + `.mh-pill`
   配套脚本 assets/js/hero.js；素材 assets/img/hero/*.jpg
   ⚠️ 素材是从案例库裁出来的（案例版本图顶部自带大标题横幅，单行约 10%、双行约 21%，
      已统一裁掉 24% —— 必须同比例裁，否则对比滑块会错位）。
   ========================================================================== */

/* ---------- 图卡外框：细白边 + 大投影，让图在蓝底上"浮"起来 ---------- */
.hv-card {
  position: relative; border-radius: 16px; overflow: hidden; background: var(--blue-deep);
  border: 2px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 30px 64px rgba(5, 24, 62, 0.45);
}
.hv-card img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .5s ease; }
.hv-card.is-ready img { opacity: 1; }

/* ---------- 首页：滑动对比 ---------- */
.hv-cmp { aspect-ratio: 1.965 / 1; cursor: ew-resize; touch-action: none; user-select: none; }
.hv-cmp:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.hv-cmp .cmp-after, .hv-cmp .cmp-before { position: absolute; inset: 0; }
/* 拖动前先不动，等 JS 设 --p（默认 50%） */
.hv-cmp .cmp-before { clip-path: inset(0 calc(100% - var(--p, 50%)) 0 0); }
.hv-cmp .cmp-bar {
  position: absolute; top: 0; bottom: 0; left: var(--p, 50%); width: 2px; margin-left: -1px;
  background: #fff; box-shadow: 0 0 12px rgba(5, 24, 62, 0.5);
}
.hv-cmp .cmp-knob {
  position: absolute; top: 50%; left: var(--p, 50%); width: 46px; height: 46px; margin: -23px 0 0 -23px;
  border-radius: 50%; background: #fff; color: var(--blue); font-size: 17px; letter-spacing: 1px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(5, 24, 62, 0.42);
  transition: transform .16s ease;
}
.hv-cmp:hover .cmp-knob, .hv-cmp.is-drag .cmp-knob { transform: scale(1.1); }
.hv-cmp .cmp-tag {
  position: absolute; top: 14px; font-size: 12.5px; padding: 5px 12px; border-radius: 8px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.hv-cmp .cmp-tag-l { left: 14px; background: rgba(6, 28, 70, 0.55); color: #fff; }
/* 「修图后」放到底部信息条右端 —— 右上角留给浮卡，避免两块叠一起 */
.hv-cmp .cmp-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 42px 14px 12px;
  font-size: 12.5px; color: #fff;
  background: linear-gradient(to top, rgba(5, 24, 62, 0.8), rgba(5, 24, 62, 0));
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
}
.hv-cmp .cmp-cap span { text-shadow: 0 1px 6px rgba(5, 24, 62, 0.5); }
.hv-cmp .cmp-cap em {
  font-style: normal; white-space: nowrap; padding: 5px 11px; border-radius: 8px;
  background: rgba(255, 255, 255, 0.93); color: var(--blue-deep);
}

/* ---------- 浮动小卡：玻璃拟态 + hover 轻浮 ---------- */
.hero-visual .hv-float {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 18px 44px rgba(5, 24, 62, 0.3);
  transition: transform .2s ease, box-shadow .2s ease;
}
.hero-visual .hv-float:hover { transform: translateY(-4px); box-shadow: 0 24px 54px rgba(5, 24, 62, 0.36); }
/* 骑在卡片两个对角上（半个卡在图片外）—— 不挡图，也不压角标/信息条 */
.hero-visual .hv-float.hv-a { left: -26px; bottom: -30px; }
.hero-visual .hv-float.hv-b { right: -18px; top: -28px; }

/* ---------- 人工精修页：多版本切换器 ---------- */
.mh-switch { aspect-ratio: 1.965 / 1; }
.mh-switch img { transition: opacity .22s ease; }
.mh-switch.is-swap img { opacity: .25; }
.mh-switch .mh-tag {
  position: absolute; left: 14px; top: 14px; font-size: 12.5px; padding: 5px 12px; border-radius: 8px;
  background: rgba(255, 255, 255, 0.93); color: var(--blue-deep);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
/* 左右箭头：手动翻版本（点一次即停止自动轮播，与点下方按钮一致） */
.mh-nav {
  position: absolute; top: 50%; z-index: 2;
  width: 42px; height: 42px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.88); color: var(--blue-deep);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transform: translateY(-50%);
  box-shadow: 0 8px 22px rgba(5, 24, 62, 0.34);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: background .16s ease, transform .16s ease, box-shadow .16s ease;
}
.mh-nav:hover { background: #fff; transform: translateY(-50%) scale(1.09); box-shadow: 0 12px 28px rgba(5, 24, 62, 0.4); }
.mh-nav:active { transform: translateY(-50%) scale(0.96); }
.mh-nav:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.mh-nav.mh-prev { left: 14px; }
.mh-nav.mh-next { right: 14px; }
.mh-switch .mh-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 16px 11px;
  font-size: 12.5px; color: #fff;
  background: linear-gradient(to top, rgba(5, 24, 62, 0.6), rgba(5, 24, 62, 0));
}
.mh-pills { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.mh-pill {
  font-family: inherit; font-size: 12.5px; line-height: 1.15; padding: 8px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.42); color: #fff;
  cursor: pointer; transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.mh-pill:hover { background: rgba(255, 255, 255, 0.26); }
.mh-pill.on { background: #fff; color: var(--blue); border-color: #fff; font-weight: 600; }
.mh-pill:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* ---------- 小屏 ---------- */
@media (max-width: 1080px) {
  .hero-visual .hv-float.hv-a { left: 8px; }
  .hero-visual .hv-float.hv-b { right: 8px; }
}
@media (max-width: 720px) {
  .hv-cmp, .mh-switch { aspect-ratio: 1.8 / 1; }
  .hv-cmp .cmp-knob { width: 38px; height: 38px; margin: -19px 0 0 -19px; font-size: 15px; }
  .mh-nav { width: 36px; height: 36px; }
  .mh-nav.mh-prev { left: 8px; }
  .mh-nav.mh-next { right: 8px; }
  .mh-switch .mh-tag { left: 10px; top: 10px; }
  .hero-visual .hv-float { padding: 10px 12px; }
  .hero-visual .hv-float b { font-size: 13px; }
  .hero-visual .hv-float span { display: none; }
  .mh-pill { padding: 8px 13px; font-size: 12.5px; }
}
@media (prefers-reduced-motion: reduce) {
  .hv-card img, .hv-cmp .cmp-knob, .hv-float, .mh-switch img { transition: none; }
}