.activity-hub-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.activity-hub-head h1{margin:0;font-size:28px}.activity-hub-head p{margin:5px 0 0;color:var(--muted)}
.activity-gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.activity-picture{position:relative;display:block;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(150deg,#eef2ff,#e4f7ee);border-radius:14px 14px 0 0}.activity-picture img{display:block;width:100%;height:100%;object-fit:cover}.activity-picture.cover-labour,.activity-picture.cover-reading,.activity-picture.cover-green{background:linear-gradient(170deg,#eef2ff,#e4f7ee)}
.activity-picture .status{position:absolute;left:12px;top:12px;background:#fff;box-shadow:0 2px 10px #0001}.campus-card{padding:0;overflow:hidden}.campus-card-body{padding:17px}.campus-card h3{margin:7px 0 9px;font-size:19px;line-height:1.4}.campus-card .card-note{font-size:13px}.campus-counts{display:flex;gap:22px;padding:14px 0;border-top:1px solid var(--line);margin-top:14px}.campus-counts strong,.campus-counts small{display:block}.campus-counts strong{font-size:22px}.campus-counts small{font-size:12px;color:var(--muted);margin-top:3px}.campus-card .btn{width:100%}
.activity-sports-banner{display:grid;grid-template-columns:210px minmax(0,1fr) auto;align-items:center;gap:20px;padding:14px;margin:14px 0 28px}.activity-sports-banner .activity-picture{border-radius:12px}.activity-sports-banner h3{font-size:21px;margin:5px 0}.activity-sports-banner p{color:var(--muted);font-size:13px}.works-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:16px 0}.works-toolbar .filters{flex-wrap:wrap}.works-toolbar .search{width:230px;max-width:100%}.work-list{display:grid;gap:12px}.work-row{display:grid;grid-template-columns:110px minmax(0,1fr) auto;gap:16px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:12px;background:#fff}.work-row .activity-picture{border-radius:10px;aspect-ratio:4/3}.work-row h3{margin:0 0 6px;font-size:16px}.work-row p{margin:4px 0;color:var(--muted);font-size:12px;line-height:1.5}.work-row .actions{flex-wrap:wrap;justify-content:flex-end}.work-owner{color:var(--ink)!important;font-weight:700}.work-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.work-gallery .activity-picture{border-radius:12px;aspect-ratio:4/3}.work-gallery img{max-width:100%}.work-gallery video{width:100%;max-height:420px;border-radius:12px;background:#172234}.work-description{font-size:15px;line-height:1.8;white-space:pre-wrap}.inline-error{color:#a63232;font-size:13px;min-height:20px;margin-top:10px}.exchange-hero{padding:20px;background:#edf3ff;border:1px solid #d5dff7;border-radius:16px}.exchange-balance{font-size:36px;font-weight:850;color:#435bc7;line-height:1.1;margin:12px 0}.exchange-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}.exchange-card{padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff;display:flex;flex-direction:column;gap:10px;min-width:0}.exchange-card h3{font-size:16px;line-height:1.4;margin:0}.exchange-card .reward-symbol{width:46px;height:46px;display:grid;place-items:center;background:#fff2d2;color:#96700b;border-radius:13px;font-size:24px;font-weight:800}.exchange-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.6}.exchange-card .actions{margin-top:auto}.exchange-price{font-size:23px;color:#4b5fc9;font-weight:800}.exchange-stock{font-size:12px;color:var(--muted)}.exchange-confirm{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px;background:#f5f7fc;border:1px solid var(--line);border-radius:14px;margin-top:16px}.exchange-confirm strong{font-size:20px}.exchange-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.product-footer{margin:32px 0 12px;text-align:center;color:var(--muted);font-size:12px}.parent-mode .product-footer{display:none}.activity-empty{padding:36px 18px;border:1px dashed #ccd3df;border-radius:14px;text-align:center;color:var(--muted)}.work-row button,.exchange-card button{min-height:40px}.works-upload{border:1px dashed #a8b8da;background:#f6f8fe;border-radius:14px;padding:20px;margin-bottom:14px}.works-upload input{width:100%;margin:12px 0}.activity-picture button{position:absolute;inset:0;background:transparent;border:0;width:100%;height:100%;cursor:pointer}.activity-picture button:focus-visible{outline:3px solid #5968f0;outline-offset:-4px}
@media(max-width:1050px){.activity-gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.activity-sports-banner{grid-template-columns:160px minmax(0,1fr)}.activity-sports-banner>.actions{grid-column:1/-1}.exchange-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.activity-hub-head{align-items:flex-start;flex-direction:column}.activity-hub-head h1{font-size:25px}.activity-gallery-grid{grid-template-columns:1fr}.activity-sports-banner{grid-template-columns:1fr;gap:12px}.activity-sports-banner .activity-picture{aspect-ratio:16/8}.activity-sports-banner>.actions{grid-column:auto}.work-row{grid-template-columns:78px minmax(0,1fr);gap:10px}.work-row>.actions{grid-column:1/-1;justify-content:flex-start}.work-gallery,.exchange-grid,.exchange-form-grid{grid-template-columns:1fr}.works-toolbar .filters,.works-toolbar .search{width:100%}.works-toolbar select{max-width:100%}.exchange-confirm{align-items:flex-start;flex-direction:column}.activity-picture{aspect-ratio:16/9}.exchange-card{display:grid;grid-template-columns:46px minmax(0,1fr)}.exchange-card .reward-symbol{grid-row:span 2}.exchange-card .actions,.exchange-card .exchange-price,.exchange-card .exchange-stock{grid-column:2}.work-description{font-size:14px}}
@media(prefers-reduced-motion:reduce){.campus-card,.exchange-card{transition:none}}

/* ===== 校级总览重设计：德育趋势 + 活动总览 =====
   图表不做横线网格：一排竖线穿过彩色柱子会把画面切碎，也让小数值更难读。
   改成浅色轨道胶囊——每根柱子有自己的槽位，长度差异一眼可比。 */
.ov-legend{display:flex;gap:16px;font-size:12px;color:var(--muted);font-weight:700}
.ov-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.ov-legend i.pos{background:#35a97f}.ov-legend i.rem{background:#e8bd63}
.ov-bars{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;margin-top:18px}
.ov-col{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.ov-val{font-size:13px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;transition:color .16s}
.ov-col:hover .ov-val{color:var(--brand)}
.ov-track{position:relative;width:100%;max-width:46px;height:186px;display:flex;flex-direction:column;justify-content:flex-end;padding:0;border:0;border-radius:12px;cursor:pointer;background:#f3f5fa;transition:background .18s}
.ov-track:hover{background:#eaeef7}
.ov-track:focus-visible{outline:3px solid #5968f0;outline-offset:2px}
/* 柱体：最上面那一段才收圆角，否则堆叠处会出现台阶 */
.ov-track i{display:block;width:100%;transition:filter .18s}
.ov-track i:first-child{border-radius:12px 12px 0 0}
.ov-track:hover i{filter:brightness(1.05)}
.ov-track i.pos{background:linear-gradient(180deg,#48bd93,#35a97f)}
.ov-track i.rem{background:linear-gradient(180deg,#f2cd7c,#e8bd63)}
.ov-day{font-size:12px;font-weight:800;margin-top:3px}
.ov-date{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.ov-summary{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.8}
.ov-summary strong{color:var(--ink);font-weight:850}
.ov-act-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:4px 0 12px}
.ov-act-head h2{margin:0;font-size:19px}.ov-act-head p{margin:4px 0 0;color:var(--muted);font-size:12px}
/* 上边距在这里而不是一个单独的 .ov-act：注入的类名是 card ov-act-card，
   原先那条 .ov-act{margin-top} 谁都没引用过，边距等于从没生效（活动总览贴着德育记录）。 */
.ov-act-card{padding:0;overflow:hidden;margin-top:16px}
.ov-act-row{display:grid;grid-template-columns:104px minmax(0,2fr) 78px 78px minmax(150px,1.1fr) auto;gap:16px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.ov-act-row:last-child{border-bottom:0}
.ov-thumb{position:relative;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:linear-gradient(150deg,#eef2ff,#e4f7ee)}
.ov-thumb img{width:100%;height:100%;object-fit:cover}
.ov-act-name{display:flex;flex-direction:column;gap:7px;min-width:0}
.ov-act-name strong{font-size:15px}
.ov-act-name .tags{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.ov-num strong{display:block;font-size:19px}.ov-num small{color:var(--muted);font-size:11px}
.ov-rate{display:flex;flex-direction:column;gap:6px}.ov-rate span{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.ov-rate span strong{color:var(--ink);font-size:14px}
@media(max-width:1050px){.ov-act-row{grid-template-columns:92px minmax(0,1.6fr) 70px 70px auto;}.ov-act-row .ov-rate{display:none}}
@media(max-width:600px){.ov-bars{gap:5px}.ov-track{height:140px;max-width:28px;border-radius:10px}.ov-track i:first-child{border-radius:10px 10px 0 0}.ov-val{font-size:11px}.ov-day{font-size:11px}.ov-date{display:none}
.ov-act-row{grid-template-columns:74px minmax(0,1fr);grid-template-areas:"thumb name" "thumb students" "works rate" "btn btn";gap:10px 12px}
.ov-thumb{grid-area:thumb}.ov-act-name{grid-area:name}.ov-num.students{grid-area:students}.ov-num.works{grid-area:works}.ov-rate{grid-area:rate;display:flex}.ov-act-row .btn{grid-area:btn;width:100%}}
.wx-activity .activity-picture{aspect-ratio:1/1;border-radius:10px;min-height:112px}

/* ===== 活动作品信息流 =====
   内容直接铺在卡片上，点媒体才进大图；缩略图列表看不出作品是什么。 */
.feed-card{border:1px solid var(--line);border-radius:15px;background:#fff;padding:15px 16px 8px}
.feed-head{display:flex;align-items:center;gap:10px}
.feed-avatar{display:grid;place-items:center;flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:#edf0ff;color:#47509a;font-size:14px;font-weight:800}
.feed-who{display:flex;flex-direction:column;min-width:0}
.feed-who strong{font-size:14px}
.feed-who small{margin-top:2px;color:var(--muted);font-size:12px}
.feed-tag{flex:0 0 auto;margin-left:auto;padding:2px 8px;border-radius:8px;background:#f0f2f7;color:var(--muted);font-size:11px;font-weight:700}
.feed-tag.ok{background:var(--amber-soft);color:var(--amber);margin-left:6px}
.feed-title{margin:11px 0 0;font-size:15px}
.feed-text{margin:5px 0 0;color:var(--ink);font-size:13.5px;line-height:1.72;white-space:pre-wrap;overflow-wrap:anywhere}
.feed-item{position:relative;display:block;width:100%;margin-top:11px;padding:0;border:0;border-radius:12px;overflow:hidden;background:#eef1f6;cursor:pointer}
.feed-item img,.feed-item video{display:block;width:100%;max-height:340px;object-fit:cover}
.feed-item:hover img,.feed-item:hover video{opacity:.93}
.feed-item:focus-visible{outline:3px solid #5968f0;outline-offset:2px}
.feed-play{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:30px;background:rgba(9,26,20,.3)}
.feed-count{position:absolute;right:9px;bottom:9px;padding:3px 9px;border-radius:9px;background:rgba(9,14,22,.62);color:#fff;font-size:11px;font-weight:700}
.feed-foot{display:flex;align-items:center;gap:14px;margin-top:6px;padding:9px 0;border-top:1px solid var(--line)}