/* 学校项目建设案例集 · 方案 A 视觉系统（白纸黑字 · 衬线大标题） */

:root{
  --paper:#FBFAF7;
  --bg:#F3F0EA;
  --ink:#1A1A1A;
  --muted:#8B8577;
  --faint:#9C9585;
  --line:#E8E3DA;
  --line-soft:#EFEBE3;
  --accent:#B0392C;
  --serif:"Songti SC","Source Han Serif SC","Noto Serif SC",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;line-height:1.6}
img{display:block;width:100%;height:auto}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}

.app{max-width:480px;margin:0 auto;min-height:100vh;background:var(--paper);border-left:1px solid #E4DFD5;border-right:1px solid #E4DFD5;display:flex;flex-direction:column}

/* ---------- 刊头 ---------- */
.masthead{padding:28px 22px 18px;border-bottom:2px solid var(--ink)}
.mh-top{display:flex;justify-content:space-between;align-items:center;font-size:9px;letter-spacing:.26em;color:var(--faint);margin-bottom:18px}
.mh-title{font-family:var(--serif);font-size:28px;font-weight:500;letter-spacing:.07em;line-height:1.2}
.mh-sub{display:inline-block;font-family:var(--serif);font-size:12px;color:var(--accent);letter-spacing:.14em;line-height:1.5;margin-top:15px;padding-top:11px;border-top:1px solid rgba(176,57,44,.45)}

/* ---------- 顶栏（内页） ---------- */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;padding:16px 22px;background:rgba(251,250,247,.96);border-bottom:1px solid var(--line)}
.topbar .back{font-size:12px;letter-spacing:.16em;color:var(--muted);flex:0 0 auto}
.topbar .tb-title{flex:1;min-width:0;font-family:var(--serif);font-size:14px;letter-spacing:.14em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .tb-right{font-size:9.5px;letter-spacing:.18em;color:var(--faint);flex:0 0 auto}

/* ---------- 一级分类 ---------- */
.cats{display:flex;gap:20px;overflow-x:auto;scrollbar-width:none;padding:15px 22px;border-bottom:1px solid var(--line)}
.cats::-webkit-scrollbar,.subcats::-webkit-scrollbar,.chips::-webkit-scrollbar{display:none}
.cat{flex:0 0 auto;font-size:13px;color:var(--muted);padding-bottom:4px;border-bottom:1px solid transparent;white-space:nowrap}
.cat.is-active{color:var(--ink);border-bottom-color:var(--accent)}

/* ---------- 二级分类 ---------- */
.subcats{display:none;gap:18px;overflow-x:auto;scrollbar-width:none;padding:12px 22px;background:#F4F1EA;border-bottom:1px solid var(--line)}
.subcats.show{display:flex}
.sub{flex:0 0 auto;font-size:11.5px;color:var(--muted);letter-spacing:.04em;white-space:nowrap}
.sub.is-active{color:var(--accent)}

/* ---------- 学段筛选 ---------- */
.filterbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 22px;border-bottom:1px solid var(--line)}
.fb-label{font-size:9px;letter-spacing:.26em;color:var(--faint)}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{font-size:11.5px;color:#6F6A5E;padding:4px 13px;border:1px solid #DCD6CB;border-radius:999px;white-space:nowrap}
.chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- 通用标签 ---------- */
.tags{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.tag{font-size:10px;letter-spacing:.1em;color:var(--muted)}
.tag::before{content:"";display:inline-block;width:3px;height:3px;background:#C6BFB0;border-radius:50%;margin-right:7px;vertical-align:2px}

/* ---------- 首页推荐 ---------- */
.sec{padding:26px 22px 0}
.sec-kicker{font-size:9px;letter-spacing:.32em;color:var(--accent);margin-bottom:13px}
.reel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:6px}
.reel::-webkit-scrollbar{display:none}
.reel .feat{flex:0 0 100%;scroll-snap-align:start}
.feat-media{overflow:hidden;background:#EDE9E1}
.feat-media img{aspect-ratio:16/10;object-fit:cover;transition:transform .6s ease}
.feat:active .feat-media img{transform:scale(1.02)}
.feat-body{padding-top:15px}
.feat-title{font-family:var(--serif);font-size:20px;font-weight:500;letter-spacing:.05em;line-height:1.45;margin-top:10px}
.feat-meta{font-size:9.5px;letter-spacing:.2em;color:var(--faint);margin-top:10px}
.reel-dots{display:flex;gap:6px;justify-content:center;margin-top:12px}
.reel-dots i{width:16px;height:2px;background:#D8D2C6;display:block}
.reel-dots i.on{background:var(--accent)}

/* ---------- 瀑布流 ---------- */
.grid-wrap{padding:24px 22px 0}
.grid-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:10px;border-bottom:1px solid var(--ink);margin-bottom:18px}
.grid-head .gh-t{font-family:var(--serif);font-size:13px;letter-spacing:.2em}
.count{font-size:9.5px;letter-spacing:.16em;color:var(--faint)}
.grid{display:flex;gap:14px;align-items:flex-start}
.grid.is-empty{display:block}
.grid .gcol{flex:1 1 0;min-width:0}
.card{display:block;margin-bottom:22px}
.card-media{position:relative;overflow:hidden;background:#EDE9E1}
.card-media img{transition:transform .6s ease}
.card:hover .card-media img{transform:scale(1.02)}
.card-w{position:absolute;left:0;top:0;background:var(--paper);color:var(--ink);font-size:9px;letter-spacing:.14em;padding:4px 8px}
.card-flag{position:absolute;right:0;bottom:0;background:var(--accent);color:#fff;font-size:9px;letter-spacing:.14em;padding:4px 8px}
.card-body{padding-top:11px}
.card-title{font-family:var(--serif);font-size:14px;font-weight:500;line-height:1.5;margin-top:8px}
.card-sub{font-size:10px;color:var(--faint);letter-spacing:.1em;margin-top:5px}

/* ---------- 空态 / 加载 ---------- */
.empty{padding:70px 22px;text-align:center;color:var(--faint)}
.empty .em-t{font-family:var(--serif);font-size:15px;letter-spacing:.14em;color:var(--muted)}
.empty .em-s{font-size:11px;letter-spacing:.14em;margin-top:10px}
.loading{padding:60px 0;text-align:center;font-size:10px;letter-spacing:.3em;color:var(--faint)}

/* ---------- 底部 ---------- */
.foot{margin-top:28px;padding:28px 22px 36px;border-top:1px solid var(--line);text-align:center}
.admin-entry{display:inline-block;font-size:10.5px;letter-spacing:.22em;color:var(--muted);border:1px solid #DCD6CB;padding:9px 22px}
.copyright{font-size:9px;letter-spacing:.2em;color:#B4AD9E;margin-top:15px}
.beian{margin-top:8px;font-size:9px;letter-spacing:.12em;color:#B4AD9E}
.beian a{color:#B4AD9E;border-bottom:1px solid #E0DACD;padding-bottom:1px}
.beian a:hover{color:var(--muted)}
.beian .beian-sep{margin:0 7px;color:#D8D2C6}

/* ---------- 详情页 ---------- */
.gallery{position:relative;background:#EDE9E1;overflow:hidden;min-height:240px;transition:height .38s cubic-bezier(.22,.61,.36,1)}
.g-track{display:flex;align-items:flex-start;transition:transform .38s cubic-bezier(.22,.61,.36,1)}
.g-slide{flex:0 0 100%;min-width:100%}
.g-slide img{width:100%;height:auto;display:block;-webkit-user-drag:none;user-select:none}
.g-count{position:absolute;right:0;bottom:0;background:rgba(20,20,20,.82);color:#FBFAF7;font-size:9.5px;letter-spacing:.18em;padding:6px 11px}
.g-nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:rgba(20,20,20,.5);color:#FBFAF7;font-size:15px;line-height:36px;text-align:center;transition:background .2s}
.g-nav:hover,.g-nav:active{background:rgba(20,20,20,.8)}
.g-nav.prev{left:10px}
.g-nav.next{right:10px}
.g-nav[hidden]{display:none}
.thumbs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:14px 22px;border-bottom:1px solid var(--line)}
.thumbs::-webkit-scrollbar{display:none}
.thumbs img{width:52px;height:52px;object-fit:cover;flex:0 0 auto;border:1px solid transparent;opacity:.55}
.thumbs img.on{border-color:var(--accent);opacity:1}
.detail-meta{padding:22px 22px 0}
.detail-title{font-family:var(--serif);font-size:23px;font-weight:500;letter-spacing:.05em;line-height:1.4;margin-top:12px}
.detail-sub{font-size:11px;color:var(--faint);letter-spacing:.16em;margin-top:9px}
.detail-rule{height:1px;background:var(--ink);margin:22px 22px 0}
.detail-hint{padding:16px 22px 0;font-size:10px;letter-spacing:.16em;color:var(--faint)}
.related{padding:26px 22px 0}

/* ---------- 管理端 ---------- */
.lock{flex:1;display:flex;flex-direction:column;justify-content:center;padding:0 34px 80px}
.lock-kicker{font-size:9px;letter-spacing:.32em;color:var(--accent);text-align:center}
.lock-title{font-family:var(--serif);font-size:26px;font-weight:500;letter-spacing:.12em;text-align:center;margin-top:16px}
.lock-sub{font-size:10.5px;letter-spacing:.16em;color:var(--faint);text-align:center;margin-top:10px}
.lock-input{width:100%;margin-top:34px;padding:14px 16px;text-align:center;letter-spacing:.7em;font-size:20px;background:#fff;border:1px solid #DCD6CB;border-bottom:1px solid var(--ink)}
.lock-input:focus{outline:none;border-color:var(--ink)}
.lock-btn{width:100%;margin-top:16px;padding:14px;background:var(--ink);color:var(--paper);font-size:12px;letter-spacing:.28em}
.lock-btn:disabled{opacity:.5}
.lock-err{font-size:10.5px;letter-spacing:.14em;color:var(--accent);text-align:center;margin-top:12px;height:14px}

.panel{padding:22px}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:10px;border-bottom:1px solid var(--ink);margin-bottom:16px}
.panel-head .ph-t{font-family:var(--serif);font-size:14px;letter-spacing:.18em}
.panel-head .ph-c{font-size:9.5px;letter-spacing:.16em;color:var(--faint)}
.btn{display:inline-block;font-size:11px;letter-spacing:.18em;padding:8px 16px;border:1px solid #DCD6CB;color:var(--muted);text-align:center}
.btn.solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.danger{color:var(--accent);border-color:#E0C4BF}
.btn.block{display:block;width:100%}
.btn.sm{font-size:10px;padding:6px 11px;letter-spacing:.12em}

.row{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.row-thumb{flex:0 0 84px;background:#EDE9E1;overflow:hidden}
.row-thumb img{aspect-ratio:4/3;object-fit:cover}
.row-main{flex:1;min-width:0}
.row-school{font-family:var(--serif);font-size:13.5px;font-weight:500;line-height:1.45}
.row-line{font-size:10px;color:var(--faint);letter-spacing:.1em;margin-top:5px}
.row-acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;align-items:center}
.wdot{display:inline-flex;align-items:center;gap:6px;font-size:10px;color:var(--faint);letter-spacing:.1em}
.wdot input{width:42px;padding:4px 6px;text-align:center;font-size:11px;letter-spacing:.08em;background:#fff;border:1px solid #DCD6CB}
.wdot input:focus{outline:none;border-color:var(--ink)}
.switch{font-size:10px;letter-spacing:.1em;padding:5px 10px;border:1px solid #DCD6CB;color:var(--faint)}
.switch.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.switch.on.acc{background:var(--accent);border-color:var(--accent)}
.row.off .row-thumb,.row.off .row-school{opacity:.42}

.form{padding:20px 22px 40px}
.field{padding:16px 0;border-bottom:1px solid var(--line)}
.field:last-of-type{border-bottom:0}
.f-label{font-size:10px;letter-spacing:.22em;color:var(--faint);display:flex;justify-content:space-between;align-items:center}
.f-label .req{color:var(--accent);letter-spacing:.1em}
.f-input{width:100%;margin-top:10px;padding:11px 13px;background:#fff;border:1px solid #DCD6CB;font-size:13px}
.f-input:focus{outline:none;border-color:var(--ink)}
.f-select{width:100%;margin-top:10px;padding:11px 13px;background:#fff;border:1px solid #DCD6CB;font-size:13px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8B8577 50%),linear-gradient(135deg,#8B8577 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.f-select:focus{outline:none;border-color:var(--ink)}
.f-hint{font-size:10px;color:var(--faint);letter-spacing:.08em;margin-top:9px}
.f-chips{display:flex;gap:9px;flex-wrap:wrap;margin-top:11px}
.f-err{font-size:11px;color:var(--accent);letter-spacing:.08em;margin-top:12px;min-height:16px}

.photos{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:13px}
.photo{position:relative;background:#EDE9E1;overflow:hidden}
.photo img{aspect-ratio:1/1;object-fit:cover}
.photo .p-idx{position:absolute;left:0;top:0;background:var(--ink);color:var(--paper);font-size:9px;padding:3px 7px;letter-spacing:.1em}
.photo .p-del{position:absolute;right:0;top:0;background:rgba(251,250,247,.92);color:var(--accent);font-size:11px;width:20px;height:20px;line-height:20px;text-align:center}
.photo .p-mv{position:absolute;left:0;bottom:0;display:flex;background:rgba(251,250,247,.92)}
.photo .p-mv i{width:22px;height:20px;line-height:20px;text-align:center;font-size:10px;color:var(--ink);font-style:normal}
.photo.add{display:flex;flex-direction:column;align-items:center;justify-content:center;aspect-ratio:1/1;border:1px dashed #C9C2B4;color:var(--faint);font-size:10px;letter-spacing:.12em;gap:6px;background:#fff}
.photo.add b{font-size:18px;font-weight:400;line-height:1}
.sticky-bar{position:sticky;bottom:0;background:rgba(251,250,247,.97);border-top:1px solid var(--line);padding:12px 22px;display:flex;gap:10px}
.sticky-bar .btn{flex:1}
.toast{position:fixed;left:50%;bottom:38px;transform:translateX(-50%);background:var(--ink);color:var(--paper);font-size:11.5px;letter-spacing:.14em;padding:11px 20px;z-index:99;opacity:0;transition:opacity .25s;pointer-events:none}
.toast.on{opacity:1}

/* ---------- 分类管理 ---------- */
.crow{padding:16px 0;border-bottom:1px solid var(--line)}
.crow-head{display:flex;align-items:center;gap:10px}
.c-idx{flex:0 0 auto;font-size:9.5px;letter-spacing:.16em;color:var(--faint)}
.cname{margin-top:0;flex:1}
.crow-acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.csubs{margin-top:6px;padding-left:22px}
.srow{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px dashed var(--line-soft)}
.srow:last-child{border-bottom:0}
.s-idx{flex:0 0 auto;font-size:9px;letter-spacing:.14em;color:#C6BFB0}
.s-input{margin-top:0;flex:1;padding:8px 11px;font-size:12px}

@media (min-width:520px){
  .app{min-height:100vh}
}