/* 移动优先：基础样式面向手机，≥768px 逐级增强为桌面布局 */
:root{
  --bg:#f5f5f7;--card:#fff;--text:#222;--muted:#888;--line:#eee;
  --accent:#e8457c;--accent-soft:#fdebf1;--hd:#1d1d22;
  --tabbar-h:56px;--safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  padding-bottom:calc(var(--tabbar-h) + var(--safe-b))}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select{font:inherit}
.wrap{max-width:1280px;margin:0 auto;padding:0 12px}

/* ---------- 顶栏 ---------- */
.hd{background:var(--hd);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 10px rgba(0,0,0,.2);padding-top:env(safe-area-inset-top,0px)}
.hd-in{display:flex;align-items:center;gap:10px;height:48px}
.logo{font-size:18px;font-weight:700;display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.logo-mark{color:var(--accent)}
.logo small{display:none;font-size:12px;font-weight:400;color:#aaa}
.icon-btn{margin-left:auto;background:none;border:0;color:#fff;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%}
.icon-btn:active{background:rgba(255,255,255,.1)}

/* 搜索：手机端默认收起，点击图标后在顶栏下方展开 */
.search{display:none;position:absolute;left:0;right:0;top:100%;padding:8px 12px;background:var(--hd);gap:8px}
body.search-open .search{display:flex}
.search input{flex:1;min-width:0;background:#2e2e35;border:0;color:#fff;padding:10px 14px;border-radius:20px;outline:none;font-size:16px}
.search input::-webkit-search-cancel-button{filter:invert(1)}
.search button{background:var(--accent);border:0;color:#fff;padding:0 18px;border-radius:20px;cursor:pointer}

/* 分类导航：手机端横向滑动 */
.nav{background:#26262c}
.nav-in{display:flex;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}
.nav-in::-webkit-scrollbar{display:none}
.nav a{flex:none;padding:9px 14px;color:#bbb;font-size:14px;position:relative;scroll-snap-align:start}
.nav a.on{color:#fff;font-weight:600}
.nav a.on::after{content:"";position:absolute;left:50%;bottom:4px;width:18px;height:3px;margin-left:-9px;border-radius:2px;background:var(--accent)}

/* ---------- 主体 ---------- */
.main{padding-top:12px;padding-bottom:20px;min-height:70vh}
.sec{margin-bottom:20px}
.sec-title{font-size:17px;margin:0 0 10px;padding-left:9px;border-left:4px solid var(--accent);line-height:1.2}
.sec-title small{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}

/* 卡片网格：手机 2 列 */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
/* 推荐位：手机端横向滑动 */
.grid-rec{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:8px;margin:0 -12px;padding:0 12px 4px;scrollbar-width:none}
.grid-rec::-webkit-scrollbar{display:none}
.grid-rec .card{flex:0 0 42%;scroll-snap-align:start}

.card{background:var(--card);border-radius:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.06);transition:transform .2s,box-shadow .2s;display:block}
.card:active{transform:scale(.98)}
.card-img{position:relative;aspect-ratio:3/4;background:#ddd;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.badge{position:absolute;right:6px;top:6px;background:rgba(0,0,0,.55);color:#fff;font-size:11px;padding:0 6px;border-radius:10px;line-height:18px}
.badge.hot{right:auto;left:6px;background:var(--accent)}
.loc{position:absolute;left:0;right:0;bottom:0;padding:16px 6px 4px;font-size:11px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.5));white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-body{padding:7px 8px 8px}
.card-title{font-size:13px;font-weight:500;margin:0 0 4px;line-height:1.45;height:38px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.card-meta{display:flex;justify-content:space-between;gap:4px;color:var(--muted);font-size:11px;white-space:nowrap}
.card-date{display:none}

/* 标签 */
.tagbar{background:var(--card);border-radius:8px;padding:10px 12px;margin-bottom:16px;display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;align-items:center;scrollbar-width:none}
.tagbar::-webkit-scrollbar{display:none}
.tagbar-label{font-weight:600;flex:none}
.tag{flex:none;display:inline-block;padding:4px 12px;border-radius:14px;background:#f1f1f4;color:#555;font-size:13px;transition:.2s;white-space:nowrap}
.tag:active,.tag:hover{background:var(--accent);color:#fff}
.tag em{font-style:normal;color:var(--muted);font-size:12px}
.tag:hover em{color:#ffe}
.tagcloud{background:var(--card);border-radius:8px;padding:14px;display:flex;flex-wrap:wrap;gap:8px}

/* 地区面板 + 三级联动 */
.panel{background:var(--card);border-radius:10px;padding:12px;margin-bottom:16px}
.panel-title{font-size:16px;margin:0 0 10px}
.region-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.rp-item{display:block;min-width:0}
.rp-label{display:none}
.region-picker select{width:100%;appearance:none;-webkit-appearance:none;background:#f5f5f7 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23999'/%3E%3C/svg%3E") no-repeat right 8px center;
  border:1px solid var(--line);border-radius:8px;padding:10px 22px 10px 10px;font-size:15px;color:var(--text);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}
.region-picker select:disabled{color:#bbb}
.region-picker select:focus{outline:none;border-color:var(--accent)}
.area-crumb{margin:10px 0 0}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;align-items:center}
.chips-label{color:var(--muted);font-size:13px;width:100%}

/* 分页：手机端只显示 上一页 / 页码 / 下一页 */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin:16px 0}
.pager a,.pager span{min-width:40px;padding:9px 14px;text-align:center;border-radius:8px;background:var(--card);border:1px solid var(--line)}
.pager .pg-num{display:none}
.pager .pg-info{border:0;background:none;color:var(--muted);padding:9px 6px}
.pager .pg-prev,.pager .pg-next{flex:1;max-width:140px}
.pager .off{color:#ccc}
.pager a:active{border-color:var(--accent);color:var(--accent)}
.more-wrap{text-align:center;margin:16px 0}
.more{display:inline-block;padding:10px 40px;border-radius:22px;background:var(--card);border:1px solid var(--line);color:#555}
.end-tip{color:#999;font-size:13px}
.more.loading{color:var(--muted);pointer-events:none}
.list-pager{display:none}
.no-js .list-pager{display:block}

/* ---------- 相册详情 ---------- */
.crumb{color:var(--muted);margin-bottom:10px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb a:hover{color:var(--accent)}
.album{background:var(--card);margin:0 -12px 16px;padding:14px 12px}
.album-hd{text-align:center;border-bottom:1px solid var(--line);padding-bottom:12px}
.album-hd h1{font-size:18px;margin:0 0 8px;line-height:1.4}
.album-meta{color:var(--muted);font-size:12px;display:flex;justify-content:center;flex-wrap:wrap;gap:2px 12px}
.loc-link{color:var(--accent)}
.album-tags{margin-top:10px;display:flex;justify-content:center;flex-wrap:wrap;gap:6px}
.album-desc{color:#666;max-width:760px;margin:10px auto 0;font-size:14px}
/* 手机端图片通栏显示 */
.photos{max-width:900px;margin:0 -12px}
.photo{margin:0 0 6px;text-align:center}
.photo img{margin:0 auto;cursor:zoom-in;background:#f0f0f0;min-height:200px;width:100%;height:auto}
.photo figcaption{color:var(--muted);font-size:12px;margin-top:2px}
.next-page{display:block;margin:14px 0 4px;padding:13px;text-align:center;border-radius:24px;background:var(--accent);color:#fff;font-size:15px;box-shadow:0 4px 12px rgba(232,69,124,.3)}
.next-page small{opacity:.8}
.prevnext{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:12px;margin-top:8px;font-size:14px}
.prevnext a,.prevnext span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#555}
.prevnext a:hover{color:var(--accent)}

/* 灯箱 */
.lightbox{position:fixed;inset:0;background:#000;z-index:100;display:flex;align-items:center;justify-content:center;touch-action:pan-y pinch-zoom}
.lightbox[hidden]{display:none}
.lightbox img{max-width:100vw;max-height:100vh;object-fit:contain;user-select:none;-webkit-user-drag:none}
.lightbox button{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;font-size:26px;width:44px;height:44px;border-radius:50%;cursor:pointer}
.lightbox button:active,.lightbox button:hover{background:var(--accent)}
.lb-close{top:calc(12px + env(safe-area-inset-top,0px));right:12px}
.lb-prev{left:8px;top:50%;transform:translateY(-50%)}
.lb-next{right:8px;top:50%;transform:translateY(-50%)}
.lb-count{position:absolute;bottom:calc(16px + var(--safe-b));color:#ccc;font-size:13px}

.empty{text-align:center;color:var(--muted);padding:50px 0;background:var(--card);border-radius:8px}
.empty.big h1{font-size:56px;margin:0;color:var(--accent)}
.btn{display:inline-block;margin-top:12px;padding:9px 26px;background:var(--accent);color:#fff;border-radius:20px}

.ft{background:var(--hd);color:#888;text-align:center;padding:18px 0;font-size:12px}
.ft-links{display:none}
.ft-links a{margin:0 10px}
.ft-links a:hover{color:#fff}

/* 底部导航（手机） */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-top:1px solid var(--line);height:calc(var(--tabbar-h) + var(--safe-b));padding-bottom:var(--safe-b)}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:#888}
.tabbar svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linejoin:round;stroke-linecap:round}
.tabbar a.on{color:var(--accent)}

.gotop{position:fixed;right:12px;bottom:calc(var(--tabbar-h) + var(--safe-b) + 14px);width:40px;height:40px;line-height:40px;text-align:center;border-radius:50%;background:var(--accent);color:#fff;font-size:18px;opacity:0;pointer-events:none;transition:.3s;box-shadow:0 4px 12px rgba(0,0,0,.2);z-index:55}
.gotop.show{opacity:1;pointer-events:auto}

/* 图片加载：骨架闪烁 + 淡入 */
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.card-img,.photo img{background:linear-gradient(90deg,#e8e8ec 25%,#f4f4f6 50%,#e8e8ec 75%);background-size:200% 100%;animation:shimmer 1.4s infinite linear}
.card-img.loaded,.photo img.loaded{animation:none;background:#eee}
.js .card-img img,.js .photo img{opacity:0;transition:opacity .35s}
.js .card-img img.loaded,.js .photo img.loaded{opacity:1}
.empty-tip{color:var(--muted);font-size:13px;margin:4px 0 8px}
.empty .chips{padding:0 16px}
/* 灯箱加载提示 */
.lb-loading{position:absolute;width:36px;height:36px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;display:none}
.lightbox.loading .lb-loading{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- ≥480px 大屏手机 / 小平板 ---------- */
@media (min-width:480px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .grid-rec .card{flex-basis:30%}
}

/* ---------- ≥768px 平板 / 桌面 ---------- */
@media (min-width:768px){
  body{font-size:14px;padding-bottom:0}
  .wrap{padding:0 16px}
  .hd-in{height:60px;gap:20px}
  .logo{font-size:22px}
  .logo small{display:inline}
  .icon-btn{display:none}
  .search{display:flex;position:static;padding:0;background:#2e2e35;border-radius:20px;overflow:hidden;margin-left:auto;gap:0}
  .search input{width:240px;flex:none;border-radius:0;background:none;padding:8px 14px;font-size:14px}
  .search button{border-radius:0}
  .nav-in{flex-wrap:wrap;overflow:visible}
  .nav a{padding:10px 16px;color:#ccc}
  .nav a:hover{color:#fff}
  .nav a.on{background:var(--accent);font-weight:400}
  .nav a.on::after{display:none}

  .main{padding-top:20px;padding-bottom:30px}
  .sec{margin-bottom:28px}
  .sec-title{font-size:18px;margin-bottom:14px}
  .grid,.grid-rec{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin:0;padding:0;overflow:visible}
  .card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
  .card:hover .card-img img{transform:scale(1.05)}
  .card:hover .card-title{color:var(--accent)}
  .card-body{padding:10px 12px 12px}
  .card-title{font-size:14px;height:42px;margin-bottom:6px}
  .card-meta{font-size:12px}
  .card-date{display:inline}
  .tagbar{flex-wrap:wrap;padding:12px 14px;margin-bottom:24px}

  .panel{padding:16px 20px}
  .region-picker{grid-template-columns:repeat(3,minmax(0,220px));gap:12px}
  .rp-label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
  .region-picker select{font-size:14px;padding:8px 24px 8px 10px}
  .chips-label{width:auto}

  .pager{flex-wrap:wrap;gap:6px;margin:24px 0}
  .pager a,.pager span{padding:6px 12px;border-radius:6px;min-width:36px}
  .pager .pg-num{display:inline-block}
  .pager .pg-info,.pager .off{display:none}
  .pager .pg-prev,.pager .pg-next{flex:none;max-width:none}
  .pager .cur{background:var(--accent);border-color:var(--accent);color:#fff}
  .pager a:hover{border-color:var(--accent);color:var(--accent)}
  .more-wrap{display:none}
  .list-pager{display:block}

  .album{margin:0 0 28px;border-radius:10px;padding:24px}
  .album-hd{padding-bottom:16px}
  .album-hd h1{font-size:22px}
  .album-meta{font-size:13px;gap:6px 18px}
  .photos{margin:0 auto}
  .photo{margin-bottom:16px}
  .photo img{border-radius:4px}
  .next-page{max-width:420px;margin:20px auto 0}
  .prevnext{flex-direction:row;justify-content:space-between;gap:16px;padding-top:16px;margin-top:10px}
  .prevnext a,.prevnext span{flex:1}
  .prevnext a:last-child,.prevnext span:last-child{text-align:right}

  .lightbox{background:rgba(0,0,0,.92)}
  .lightbox img{max-width:92vw;max-height:90vh}
  .lightbox button{font-size:34px;width:54px;height:54px}
  .lb-close{top:20px;right:20px}
  .lb-prev{left:20px}.lb-next{right:20px}

  .ft{padding:24px 0;font-size:13px}
  .ft-links{display:block}
  .tabbar{display:none}
  .gotop{right:20px;bottom:30px;width:42px;height:42px;line-height:42px}
}

/* ---------- 详情页单图浏览器（移动优先） ---------- */
.viewer{position:relative;margin:12px -12px 0;background:#111;overflow:hidden;user-select:none;-webkit-user-select:none}
.vw-track{display:flex;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;
  height:68vh;height:min(68svh,760px);outline:none}
.vw-track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;width:100%;height:100%;margin:0;scroll-snap-align:center;scroll-snap-stop:always;
  display:flex;align-items:center;justify-content:center;position:relative}
.slide img{max-width:100%;max-height:100%;object-fit:contain;cursor:zoom-in;opacity:0;transition:opacity .3s;-webkit-user-drag:none}
.slide img.loaded{opacity:1}
/* 未加载完时显示转圈 */
.slide:not(.slide-end)::before{content:"";position:absolute;width:32px;height:32px;border:3px solid rgba(255,255,255,.15);border-top-color:rgba(255,255,255,.7);border-radius:50%;animation:spin .8s linear infinite}
.slide.loaded::before{display:none}
.slide-end{flex-direction:column;gap:10px;color:#ddd;text-align:center;padding:20px}
.end-title{font-size:20px;margin:0 0 6px;color:#fff}
.end-sub{margin:0;font-size:13px;color:#999;max-width:80%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slide-end .next-page{margin:0;padding:12px 40px}
.vw-restart{margin-top:8px;background:none;border:1px solid #555;color:#ccc;border-radius:20px;padding:8px 20px;cursor:pointer}
.vw-count{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);background:rgba(0,0,0,.55);color:#fff;font-size:13px;padding:2px 12px;border-radius:12px;pointer-events:none}
.vw-count b{font-weight:600}
.vw-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:0;background:rgba(0,0,0,.4);color:#fff;font-size:30px;line-height:40px;cursor:pointer;display:none;transition:background .2s,opacity .2s}
.vw-btn:hover{background:var(--accent)}
.vw-btn[disabled]{opacity:.25;cursor:default;background:rgba(0,0,0,.4)}
.vw-prev{left:10px}.vw-next{right:10px}
.vw-full{position:absolute;right:8px;top:8px;width:36px;height:36px;border:0;border-radius:50%;background:rgba(0,0,0,.45);color:#fff;font-size:18px;cursor:pointer}
/* 缩略图条 */
.vw-thumbs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:8px 0 2px;margin:0 -12px;padding-left:12px;padding-right:12px;scroll-behavior:smooth}
.vw-thumbs::-webkit-scrollbar{display:none}
.vw-thumb{flex:none;width:48px;height:64px;padding:0;border:2px solid transparent;border-radius:4px;overflow:hidden;background:#ddd;cursor:pointer;opacity:.6;transition:.2s}
.vw-thumb img{width:100%;height:100%;object-fit:cover}
.vw-thumb.on{border-color:var(--accent);opacity:1}
.viewer + .vw-thumbs + noscript + .prevnext,.vw-thumbs + .prevnext{margin-top:12px}

@media (hover:hover) and (pointer:fine){ .vw-btn{display:block} }
@media (min-width:768px){
  .viewer{margin:16px 0 0;border-radius:8px}
  .vw-track{height:min(78vh,860px)}
  .vw-thumbs{margin:0;padding:10px 0 2px}
  .vw-thumb{width:60px;height:80px}
  .vw-thumb:hover{opacity:1}
}

/* 详情页：图片优先，详细信息放在图片下方 */
.album{padding-top:10px}
.album-hd{border-bottom:0;padding-bottom:0}
.album-hd h1{margin-bottom:2px}
.album-sub{color:var(--muted);font-size:12px}
.album-info{border-top:1px solid var(--line);margin-top:12px;padding-top:12px;text-align:center}
.album-info .album-meta a{color:var(--accent)}
.vw-track{height:max(340px,calc(100svh - 270px))}
@media (min-width:768px){
  .album{padding-top:20px}
  .album-sub{font-size:13px}
  .vw-track{height:min(78vh,860px)}
}