/* ============================================================
   forum.css —— 论坛：两级板块导航 / 搜索筛选 / 通知 / 帖子与回复
   只引用 tokens.css 的变量，不新造颜色；结构类名统一 fm- 前缀。
   ============================================================ */

/* ── 版式：左板块树 + 右内容 ── */
.fm-layout{display:grid;grid-template-columns:224px minmax(0,1fr);gap:22px;align-items:start;min-width:0}
.fm-side{
  position:sticky;top:calc(var(--nav-h) + 14px);
  min-width:0;
  border:1px solid var(--line);border-radius:var(--r);
  background:var(--panel);
  padding:12px 10px;
}
.fm-side-head{display:flex;align-items:center;justify-content:space-between;padding:0 6px 8px}
.fm-side-t{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.fm-side-x{
  display:none;background:none;border:0;padding:0;
  font-size:12px;color:var(--mut);cursor:pointer;
}
.fm-side-x:hover{color:var(--grn)}
.fm-bds{display:grid;gap:2px}

/* 分组：一级板块名 + 它下面的二级入口 */
.fm-group{padding:4px 0}
.fm-group + .fm-group{border-top:1px dashed var(--line);margin-top:4px;padding-top:8px}
.fm-bd{
  display:flex;align-items:center;gap:8px;
  padding:7px 10px;border-radius:10px;
  font-size:13.5px;color:var(--txt2);
  transition:background .16s,color .16s;
}
.fm-bd:hover{background:var(--panel2);color:var(--txt)}
.fm-bd.on{background:rgba(74,222,128,.12);color:var(--mint);font-weight:700}
/* 一级板块是分组标题：比二级重一点，层级一眼能分出来 */
.fm-group > .fm-bd{font-weight:700;color:var(--txt2)}
.fm-group > .fm-bd.on{color:var(--mint)}
.fm-bd-n{
  margin-left:auto;flex:none;
  font-size:11px;color:var(--dim);font-variant-numeric:tabular-nums;
}
.fm-bd.on .fm-bd-n{color:var(--mint)}
.fm-bd-t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fm-subs{display:grid;gap:1px;margin:2px 0 0 10px;padding-left:8px;border-left:1px solid var(--line)}
.fm-sub{font-size:12.5px;padding:6px 8px;border-radius:8px}
.fm-sub.on{background:rgba(74,222,128,.1);color:var(--mint);font-weight:700}
.fm-sub-n{margin-left:auto;font-size:10.5px;color:var(--dim);font-variant-numeric:tabular-nums}
.fm-bd-skel{height:32px;border-radius:10px;background:linear-gradient(90deg,var(--panel2),var(--panel),var(--panel2));background-size:200% 100%;animation:fmsk 1.2s linear infinite}
@keyframes fmsk{0%{background-position:0 0}100%{background-position:-200% 0}}

/* ── 顶部工具条 ── */
.fm-main{min-width:0}
.fm-bar{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.fm-side-btn{
  display:none;flex:none;height:36px;padding:0 12px;
  border:1px solid var(--line2);border-radius:10px;background:var(--panel);
  color:var(--txt2);font-size:13px;cursor:pointer;
}
.fm-search{position:relative;flex:1;min-width:0;display:block}
.fm-search-i{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:15px;color:var(--dim);pointer-events:none}
.fm-search input{
  width:100%;height:38px;
  padding:0 12px 0 32px;
  border:1px solid var(--line);border-radius:10px;
  background:var(--ink);
  color:var(--txt);font-size:13.5px;
}
.fm-search input::placeholder{color:var(--dim)}
.fm-search input:focus{outline:none;border-color:rgba(74,222,128,.42)}

.fm-bar-acts{display:flex;align-items:center;gap:8px;flex:none;flex-wrap:wrap}

/* ── 通知：铃铛 + 红点 + 下拉 ── */
.fm-notify-wrap{position:relative}
.fm-bell{position:relative}
.fm-dot{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:16px;height:16px;margin-left:6px;padding:0 4px;
  border-radius:999px;background:var(--red);color:#1a0505;
  font-size:10.5px;font-weight:800;line-height:1;
}
.fm-drop{
  position:absolute;right:0;top:calc(100% + 8px);z-index:40;
  width:min(340px,86vw);
  border:1px solid var(--line2);border-radius:var(--r);
  background:var(--bg3);
  box-shadow:0 24px 60px -20px rgba(0,0,0,.85);
  padding:10px;
}
.fm-drop-t{margin:2px 6px 8px;font-size:11.5px;font-weight:700;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}
.fm-drop-list{display:grid;gap:2px;max-height:min(52vh,380px);overflow:auto}
.fm-di{
  display:block;padding:9px 10px;border-radius:9px;
  font-size:13px;color:var(--txt2);line-height:1.5;
  transition:background .16s;
}
.fm-di:hover{background:var(--panel2)}
.fm-di.on{background:rgba(74,222,128,.07)}
.fm-di b{color:var(--txt);font-weight:600}
.fm-di .fine{display:block;margin-top:3px;font-size:11.5px;color:var(--dim)}
.fm-drop-all{
  width:100%;margin-top:8px;padding:8px;
  border:1px solid var(--line);border-radius:9px;
  background:transparent;color:var(--mut);
  font-size:12.5px;cursor:pointer;
}
.fm-drop-all:hover{color:var(--grn);border-color:rgba(74,222,128,.4)}
.fm-drop-empty{padding:16px 10px;text-align:center;font-size:12.5px;color:var(--dim)}

/* ── 面包屑 / 筛选 ── */
.fm-crumb{display:flex;align-items:center;gap:6px;margin-bottom:12px;font-size:12.5px;color:var(--dim);flex-wrap:wrap}
.fm-crumb a{color:var(--mut)}
.fm-crumb a:hover{color:var(--grn)}
.fm-crumb .sep{opacity:.5}
.fm-crumb b{color:var(--txt2);font-weight:600}

.fm-filters{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.fm-chips{display:flex;gap:6px;flex-wrap:wrap}
.fm-chip{
  padding:5px 11px;border:1px solid var(--line);border-radius:999px;
  background:transparent;color:var(--mut);
  font-size:12.5px;cursor:pointer;
  transition:color .16s,border-color .16s,background .16s;
}
.fm-chip:hover{color:var(--txt2);border-color:var(--line2)}
.fm-chip.on{color:var(--mint);border-color:rgba(74,222,128,.4);background:rgba(74,222,128,.1)}
.fm-sorts{display:flex;gap:2px;border:1px solid var(--line);border-radius:10px;padding:2px;background:var(--ink)}
.fm-sort{
  padding:5px 10px;border:0;border-radius:8px;background:transparent;
  color:var(--dim);font-size:12px;cursor:pointer;
}
.fm-sort:hover{color:var(--txt2)}
.fm-sort.on{background:var(--panel2);color:var(--txt);font-weight:600}

/* ── 发帖表单 ── */
.fm-select{
  width:100%;height:40px;padding:0 10px;
  border:1px solid var(--line);border-radius:10px;
  background:var(--ink);color:var(--txt);font-size:13.5px;
}
.fm-select:focus{outline:none;border-color:rgba(74,222,128,.42)}
.fm-md{margin-top:7px;font-size:11.5px;color:var(--dim);line-height:1.7}
.fm-md code{
  padding:1px 5px;border-radius:5px;
  background:var(--panel2);color:var(--txt2);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;
}

/* ── 列表行上的状态小标 ── */
.fm-tag{
  flex:none;font-size:10.5px;font-weight:700;line-height:1.5;
  padding:1px 6px;border-radius:6px;
  border:1px solid var(--line2);color:var(--mut);
}
.fm-tag.t-best{color:var(--gold);border-color:rgba(251,191,36,.42);background:rgba(251,191,36,.1)}
.fm-tag.t-lock{color:var(--dim)}
.fm-tag.t-pend{color:var(--gold);border-color:rgba(251,191,36,.38);background:rgba(251,191,36,.08)}
.fm-tag.t-rej{color:var(--red);border-color:rgba(248,113,113,.38);background:rgba(248,113,113,.08)}

/* ── 详情页 ── */
.fm-detail .pd-body{white-space:normal}
.fm-body{font-size:14.5px;color:var(--txt2);line-height:1.85;word-break:break-word}
.fm-body p{margin:0 0 12px}
.fm-body p:last-child{margin-bottom:0}
.fm-body h3,.fm-body h4{margin:20px 0 10px;color:var(--txt);font-weight:700;letter-spacing:-.01em}
.fm-body h3{font-size:16px}
.fm-body h4{font-size:14.5px}
.fm-body ul,.fm-body ol{margin:0 0 12px;padding-left:22px}
.fm-body li{margin:4px 0}
.fm-body blockquote{
  margin:0 0 12px;padding:8px 14px;
  border-left:3px solid rgba(74,222,128,.42);
  background:rgba(74,222,128,.05);border-radius:0 8px 8px 0;
  color:var(--mut);
}
.fm-body code{
  padding:1.5px 5px;border-radius:5px;
  background:var(--panel2);color:var(--mint);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;
}
.fm-body pre{
  margin:0 0 12px;padding:12px 14px;overflow:auto;
  border:1px solid var(--line);border-radius:10px;background:var(--ink);
}
.fm-body pre code{padding:0;background:none;color:var(--txt2);font-size:12.5px;line-height:1.7}
.fm-body img{margin:10px 0;border-radius:10px;border:1px solid var(--line);max-height:520px;object-fit:contain}
.fm-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:2px}
.fm-body hr{margin:18px 0;border:0;border-top:1px solid var(--line)}

.pd-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
.fm-badges{display:flex;gap:6px;flex-wrap:wrap}
.fm-acts{display:flex;gap:8px;flex-wrap:wrap}
.fm-state{
  margin-bottom:14px;padding:10px 14px;
  border:1px solid rgba(251,191,36,.32);border-radius:10px;
  background:rgba(251,191,36,.08);
  font-size:13px;color:var(--gold);
}
.fm-state.bad{border-color:rgba(248,113,113,.34);background:rgba(248,113,113,.08);color:var(--red)}

.reply{position:relative}
.reply-author{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.reply-floor{
  flex:none;font-size:10.5px;color:var(--dim);
  font-variant-numeric:tabular-nums;
}
.reply-op{font-size:10.5px;color:var(--grn);border:1px solid rgba(74,222,128,.38);border-radius:5px;padding:0 5px}
.reply-del{color:var(--dim);font-style:italic}
.reply-acts{display:flex;gap:10px;margin-top:8px;font-size:12px;color:var(--dim)}
.reply-acts button{
  background:none;border:0;padding:0;color:var(--dim);
  font-size:12px;cursor:pointer;
}
.reply-acts button:hover{color:var(--grn)}
.fm-replyto{
  display:flex;align-items:center;gap:8px;margin:0 0 10px;
  font-size:12.5px;color:var(--mut);
}
.fm-replyto b{color:var(--grn)}
.fm-replyto button{
  background:none;border:0;padding:0;
  color:var(--dim);font-size:12px;cursor:pointer;text-decoration:underline;
}

/* ── 举报弹层（只为这一个动作存在，不引第三方弹窗库） ── */
.fm-mask{
  position:fixed;inset:0;z-index:120;
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  background:rgba(3,6,5,.72);
  backdrop-filter:blur(3px);
}
.fm-modal{
  width:min(360px,100%);
  border:1px solid var(--line2);border-radius:var(--r);
  background:var(--bg3);
  padding:20px;
  box-shadow:0 30px 80px -24px rgba(0,0,0,.9);
}
.fm-modal h4{margin:0 0 4px;font-size:15px;font-weight:700;color:var(--txt)}
.fm-modal .fine{margin:0 0 14px;font-size:12.5px;color:var(--dim)}
.fm-reasons{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}

/* ── 响应式：窄屏把板块树折成横向滚动条 ── */
@media (max-width:900px){
  .fm-layout{grid-template-columns:minmax(0,1fr);gap:12px}
  .fm-side{position:static;padding:10px}
  .fm-side-btn{display:inline-flex;align-items:center}
  .fm-side-x{display:block}
  /* 窄屏不横滑：展开后就地摊成竖列表，比一条被切掉半截的横向长条好读 */
  .fm-side[data-open="0"] .fm-bds{display:none}
  .fm-bds{display:grid;gap:2px;max-width:100%}
  .fm-group{flex:0 0 auto;padding:4px 0}
  .fm-group + .fm-group{border-top:1px dashed var(--line);margin-top:4px;padding-top:8px}
  .fm-subs{display:grid;gap:1px;margin:2px 0 0 10px;padding-left:8px;border-left:1px solid var(--line)}
  .fm-bd,.fm-sub{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .fm-bd-n,.fm-sub-n{margin-left:auto;padding-left:8px}
}
@media (max-width:760px){
  .fm-bar{flex-wrap:wrap}
  .fm-search{order:3;flex:1 0 100%}
  .fm-bar-acts{margin-left:auto}
  .fm-filters{align-items:flex-start;flex-direction:column}
  .fm-sorts{align-self:flex-end}
  .pd-foot{flex-direction:column;align-items:flex-start}
}