/* 论坛页样式（依赖首页 style.css 变量） */
.forum-wrap{min-height:70vh;padding-top:20px}
.forum-head{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.forum-head h1{font-size:28px;font-weight:800}
.forum-sub{flex:1;font-size:13px;color:var(--gray)}
.forum-layout{display:flex;gap:18px;align-items:flex-start}

/* 版块侧栏 */
.board-side{width:220px;flex-shrink:0;background:#fff;border-radius:10px;box-shadow:var(--shadow);padding:14px;position:sticky;top:80px}
.board-title{font-size:15px;font-weight:700;margin-bottom:10px;padding-left:8px}
.board-item{display:block;width:100%;text-align:left;background:none;border:none;border-radius:8px;padding:10px 12px;cursor:pointer;font-size:14px;color:#333;margin-bottom:2px}
.board-item:hover{background:#f2f8f5}
.board-item.active{background:#e6f9f0;color:var(--green);font-weight:700}
.board-item .bd-name{display:block}
.board-item .bd-meta{display:block;font-size:12px;color:var(--gray);margin-top:2px}

/* 主题列表 */
.topic-main{flex:1;background:#fff;border-radius:10px;box-shadow:var(--shadow);padding:6px 18px 14px;min-width:0}
.topic-toolbar{display:flex;align-items:center;padding:10px 0 8px;border-bottom:1px solid #f2f2f2}
.topic-count{font-size:13px;color:var(--gray)}
.topic-item{display:flex;gap:14px;padding:14px 2px;border-bottom:1px solid #f5f5f5;cursor:pointer}
.topic-item:last-child{border-bottom:none}
.topic-item:hover{background:#fafdfb}
.topic-main-col{flex:1;min-width:0}
.topic-item .t-title{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topic-item .t-excerpt{font-size:13px;color:#666;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.topic-item .t-meta{font-size:12px;color:var(--gray);margin-top:6px;display:flex;gap:14px;flex-wrap:wrap}
.topic-item .t-meta .b-name{color:var(--green);font-weight:600}
.topic-stats{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:52px}
.topic-stats .num{font-size:18px;font-weight:800;color:var(--green)}
.topic-stats .lab{font-size:11px;color:var(--gray)}
.topic-stats.views .num{color:var(--blue);font-size:14px;font-weight:700}

/* 详情 */
.f-back{display:inline-block;color:var(--green);font-size:14px;margin-bottom:12px}
.topic-detail{background:#fff;border-radius:10px;box-shadow:var(--shadow);padding:22px 24px}
.topic-detail h1{font-size:22px;margin-bottom:8px}
.topic-detail .d-meta{font-size:13px;color:var(--gray);display:flex;gap:16px;flex-wrap:wrap;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid #f2f2f2}
.topic-detail .d-meta .b-name{color:var(--green);font-weight:600}
.topic-detail .d-content{font-size:15px;line-height:1.9;color:#333;white-space:pre-wrap}
.reply-title{font-size:16px;font-weight:700;margin:26px 0 12px}
.reply-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid #f5f5f5}
.reply-item:last-child{border-bottom:none}
.reply-av{width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}
.reply-item.green .reply-av{background:var(--green)}
.reply-main{flex:1;min-width:0}
.reply-main .r-author{font-size:13px;font-weight:600;color:var(--ink)}
.reply-main .r-time{font-size:12px;color:var(--gray);margin-left:8px}
.reply-main .r-content{font-size:14px;color:#333;margin-top:4px;white-space:pre-wrap}
.reply-form{margin-top:18px;background:#fafbfc;border-radius:10px;padding:16px}
.reply-form textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14px;font-family:inherit;outline:none;resize:vertical}
.reply-form textarea:focus{border-color:var(--green)}
.reply-form .rf-row{display:flex;gap:10px;margin-top:10px}
.reply-form input{flex:1;border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:14px;outline:none}
.reply-form input:focus{border-color:var(--green)}

/* 弹窗（论坛专用） */
.f-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:60}
.f-modal{background:#fff;border-radius:14px;width:560px;max-width:94vw;max-height:92vh;display:flex;flex-direction:column}
.f-modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #eee}
.f-modal-head h3{font-size:18px}
.f-close{background:none;border:none;font-size:26px;cursor:pointer;color:#999;line-height:1}
.f-modal-body{padding:18px 20px;overflow:auto}
.f-modal-body label{display:flex;flex-direction:column;font-size:13px;color:#666;gap:6px;margin-bottom:14px}
.f-modal-body input,.f-modal-body textarea,.f-modal-body select{border:1px solid #ddd;border-radius:8px;padding:9px 11px;font-size:14px;outline:none;font-family:inherit;color:#222;background:#fff}
.f-modal-body input:focus,.f-modal-body textarea:focus,.f-modal-body select:focus{border-color:var(--green)}
.f-err{color:#e74c3c;font-size:13px;min-height:16px}
.f-modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid #eee}
.f-btn{height:38px;padding:0 20px;border:none;border-radius:8px;cursor:pointer;font-size:14px}
.f-primary{background:var(--green);color:#fff}
.f-primary:hover{background:var(--green-d)}
.f-ghost{border:1px solid var(--line);background:#fff;color:#555}
.f-ghost:hover{border-color:var(--green);color:var(--green)}
.f-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.82);color:#fff;padding:12px 22px;border-radius:8px;font-size:14px;z-index:99}
.f-empty{padding:46px 0;text-align:center;color:var(--gray)}

.forum-badge{background:#e6f9f0;color:var(--green);font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px}

@media(max-width:860px){
  .forum-layout{flex-direction:column}
  .board-side{width:100%;position:static}
  .board-item{display:inline-block;width:auto;margin-right:6px}
}