/* ==========================================================================
   Hailong_Career_V24 ｜ 海龙学院活动轮播
   —— 本模块专用增量样式（不属于母版公共资源，勿放进 site.css）
   依赖母版 assets/site.css 的变量(--nav-h/--radius/--text-dark)与基础类(.kicker/.section-heading)
   ========================================================================== */

/* ---------- 1. 区块外框（浅色，与上方深色视频首屏形成节奏） ---------- */
.acts-section{background:linear-gradient(180deg,#eef7ff 0%,#e2f0fe 100%);color:var(--text-dark)}
.acts-inner{min-height:100vh;display:flex;flex-direction:column;justify-content:center}
.acts-section .kicker{background:#fff;color:#236593;border-color:rgba(35,101,147,.16);box-shadow:0 8px 20px rgba(33,90,140,.10)}
.acts-section .section-heading{margin-bottom:0}
.acts-section .section-heading h2{color:#10243d}
.acts-section .section-heading p{max-width:860px;margin:12px auto 0}

/* ---------- 2. 轮播容器 ---------- */
.acts-carousel{position:relative;margin-top:24px}
.acts-viewport{display:flex;gap:26px;overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  padding:18px 0 30px;          /* 纵向留白，避免 hover 抬升与投影被 overflow 裁掉 */
  scrollbar-width:none;-ms-overflow-style:none}
.acts-viewport::-webkit-scrollbar{display:none}
.acts-viewport:focus-visible{outline:2px solid #1d7fc9;outline-offset:4px;border-radius:14px}

/* ---------- 3. 活动卡片 ---------- */
.acts-card{flex:0 0 calc((100% - 52px)/3);scroll-snap-align:start;
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid rgba(68,160,220,.16);border-radius:22px;
  box-shadow:0 14px 34px rgba(17,77,121,.10);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.acts-card:hover,.acts-card:focus-visible{transform:translateY(-6px);
  box-shadow:0 26px 50px rgba(17,77,121,.20);border-color:rgba(35,145,220,.44)}
.acts-card:focus-visible{outline:2px solid #1d7fc9;outline-offset:3px}
.acts-cover{position:relative;aspect-ratio:900/383;overflow:hidden;background:#dbe8f4}
.acts-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.acts-card:hover .acts-cover img{transform:scale(1.05)}
.acts-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1}
.acts-date{font-size:11.5px;font-weight:600;letter-spacing:.13em;color:#5593bd}
.acts-title{margin:0;font-size:17px;line-height:1.5;font-weight:600;color:#11345a;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.acts-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.1em;color:#1d7fc9;transition:gap .2s ease,color .2s ease}
.acts-card:hover .acts-more{gap:11px;color:#0f5c9e}

/* ---------- 4. 左右箭头 ---------- */
.acts-arrow{position:absolute;top:44%;transform:translateY(-50%);z-index:6;
  width:50px;height:50px;padding:0;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(35,101,147,.18);background:#fff;color:#1d5c94;
  box-shadow:0 12px 26px rgba(17,77,121,.18);
  transition:background .2s ease,color .2s ease,transform .2s ease,opacity .2s ease}
.acts-arrow:hover:not(:disabled){background:#1d7fc9;color:#fff;transform:translateY(-50%) scale(1.07)}
.acts-arrow:disabled{opacity:.3;cursor:default}
.acts-arrow svg{display:block}
.acts-prev{left:-16px}
.acts-next{right:-16px}

/* ---------- 5. 指示点 ---------- */
.acts-dots{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:8px}
.acts-dot{width:9px;height:9px;padding:0;border:0;border-radius:999px;cursor:pointer;
  background:rgba(29,92,148,.26);transition:width .28s ease,background .28s ease}
.acts-dot:hover{background:rgba(29,92,148,.5)}
.acts-dot.active{width:28px;background:#1d7fc9}

/* ---------- 6. 响应式 ---------- */
@media (max-width:1180px){
  .acts-card{flex:0 0 calc((100% - 26px)/2)}
  .acts-prev{left:-8px}
  .acts-next{right:-8px}
}
@media (max-width:760px){
  .acts-inner{padding-left:16px;padding-right:16px}
  .acts-carousel{margin-top:14px}
  .acts-viewport{gap:16px;padding:14px 0 22px}
  .acts-card{flex:0 0 84%}
  .acts-arrow{display:none}          /* 移动端直接左右滑动 */
  .acts-title{font-size:16px;min-height:48px}
  .acts-dots{margin-top:4px}
}
@media (prefers-reduced-motion:reduce){
  .acts-viewport{scroll-behavior:auto}
  .acts-card,.acts-cover img,.acts-arrow,.acts-dot{transition:none}
}