/*!
 * 雪线 SnowLine · 留言板 / 讨论区样式
 *
 * 只放这一页用的规则，全局令牌与 .chip 等基础类沿用 style.css，
 * 避免把公共样式改出涟漪。命名统一 bd- 前缀。
 */

/* ---------------- 头部区 ---------------- */

.bd-hero { padding: 48px 0 8px; }

.bd-stats {
  display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 0;
}

.bd-stat {
  flex: 1 1 130px; min-width: 118px;
  background: var(--bg-2); border: 0.5px solid var(--line);
  border-radius: var(--r-m); padding: 13px 15px;
}
.bd-stat b {
  display: block; font-size: 21px; font-weight: 600;
  letter-spacing: -.4px; line-height: 1.25; color: var(--blue-d);
}
.bd-stat span { font-size: 12.5px; color: var(--ink-3); }

/* ---------------- 工具栏 ---------------- */

.bd-toolbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 16px 0; border-bottom: 0.5px solid var(--line); margin-bottom: 20px;
}

.bd-cats { display: flex; gap: 6px; flex-wrap: wrap; flex: 1 1 auto; }

.bd-cat {
  font: inherit; font-size: 13px; cursor: pointer;
  padding: 6px 12px; border-radius: 999px;
  border: 0.5px solid var(--line-2); background: var(--bg);
  color: var(--ink-2); transition: background .15s, color .15s, border-color .15s;
}
.bd-cat:hover { background: var(--bg-3); }
.bd-cat.on {
  background: var(--blue-d); border-color: var(--blue-d);
  color: #fff; font-weight: 500;
}

.bd-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.bd-search {
  font: inherit; font-size: 13.5px;
  padding: 8px 12px; width: 180px;
  border: 0.5px solid var(--line-2); border-radius: var(--r-s);
  background: var(--bg); color: var(--ink);
}
.bd-search:focus { outline: 2px solid var(--blue-l); outline-offset: 0; border-color: var(--blue); }

.bd-sel {
  font: inherit; font-size: 13.5px; padding: 8px 10px;
  border: 0.5px solid var(--line-2); border-radius: var(--r-s);
  background: var(--bg); color: var(--ink-2); cursor: pointer;
}

/* ---------------- 提示条 ---------------- */

.bd-msg {
  border-radius: var(--r-m); padding: 12px 15px; font-size: 13.5px;
  margin-bottom: 18px; line-height: 1.6;
}
.bd-msg.info { background: var(--blue-l); color: var(--blue-d); }
.bd-msg.ok { background: var(--teal-l); color: var(--teal); }
.bd-msg.bad { background: var(--red-l); color: var(--red); }
.bd-msg.warn { background: var(--amber-l); color: var(--amber); }
.bd-msg a { text-decoration: underline; font-weight: 500; }

/* ---------------- 发帖表单 ---------------- */

.bd-compose {
  border: 0.5px solid var(--line-2); border-radius: var(--r-l);
  background: var(--bg-2); padding: 18px; margin-bottom: 22px;
}
.bd-compose h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.bd-compose .bd-hint { font-size: 12.5px; color: var(--ink-3); margin-bottom: 14px; }

.bd-field { display: block; margin-bottom: 12px; }
.bd-field > span {
  display: block; font-size: 12.5px; color: var(--ink-2);
  margin-bottom: 5px; font-weight: 500;
}
.bd-field .bd-count { float: right; font-weight: 400; color: var(--ink-3); }

.bd-input, .bd-textarea, .bd-select {
  font: inherit; font-size: 14px; width: 100%;
  padding: 9px 12px; border: 0.5px solid var(--line-2);
  border-radius: var(--r-s); background: var(--bg); color: var(--ink);
}
.bd-textarea { min-height: 104px; resize: vertical; line-height: 1.7; }
.bd-input:focus, .bd-textarea:focus, .bd-select:focus {
  outline: 2px solid var(--blue-l); border-color: var(--blue);
}

.bd-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.bd-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.bd-actions .bd-spacer { flex: 1 1 auto; }

/* ---------------- 主题列表 ---------------- */

.bd-list { display: grid; gap: 12px; }

.bd-item {
  border: 0.5px solid var(--line); border-radius: var(--r-m);
  padding: 16px 18px; background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
  cursor: pointer;
}
.bd-item:hover { border-color: var(--line-2); box-shadow: 0 2px 10px rgba(14,26,36,.05); }
.bd-item.is-hidden { background: var(--amber-l); border-color: #E7D3AE; }

.bd-item-top { display: flex; align-items: flex-start; gap: 12px; }

.bd-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center;
  font-size: 14px; font-weight: 600; color: #fff; user-select: none;
}
.bd-avatar.sm { width: 26px; height: 26px; font-size: 12px; }

.bd-item-main { flex: 1 1 auto; min-width: 0; }

.bd-item-title {
  font-size: 15.5px; font-weight: 600; line-height: 1.45;
  margin-bottom: 5px; word-break: break-word;
}
.bd-item:hover .bd-item-title { color: var(--blue-d); }

.bd-item-meta {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--ink-3); margin-bottom: 8px;
}

.bd-item-excerpt {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.65;
  word-break: break-word;
}

.bd-item-foot {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 12px; padding-top: 11px; border-top: 0.5px solid var(--line);
  font-size: 12.5px; color: var(--ink-3);
}
.bd-item-foot .bd-k { display: inline-flex; align-items: center; gap: 4px; }

.bd-lastreply {
  margin-top: 10px; padding: 9px 12px; border-radius: var(--r-s);
  background: var(--bg-2); font-size: 13px; color: var(--ink-2);
  line-height: 1.6; word-break: break-word;
}
.bd-lastreply b { font-weight: 500; color: var(--ink); }

.bd-empty {
  text-align: center; padding: 54px 20px; color: var(--ink-3);
  border: 0.5px dashed var(--line-2); border-radius: var(--r-m);
}

/* ---------------- 分页 ---------------- */

.bd-pager {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin-top: 22px; font-size: 13.5px; color: var(--ink-2);
}
.bd-pager button {
  font: inherit; font-size: 13.5px; cursor: pointer;
  padding: 7px 14px; border-radius: var(--r-s);
  border: 0.5px solid var(--line-2); background: var(--bg); color: var(--ink-2);
}
.bd-pager button:disabled { opacity: .45; cursor: not-allowed; }
.bd-pager button:not(:disabled):hover { background: var(--bg-3); }

/* ---------------- 详情 ---------------- */

.bd-detail-head { padding: 8px 0 0; }

.bd-back {
  font: inherit; font-size: 13.5px; cursor: pointer;
  background: none; border: 0; color: var(--blue-d);
  padding: 6px 0; margin-bottom: 10px;
}
.bd-back:hover { text-decoration: underline; }

.bd-detail-title {
  font-size: 24px; font-weight: 600; line-height: 1.35;
  letter-spacing: -.4px; margin-bottom: 10px; word-break: break-word;
}

.bd-detail-body {
  font-size: 15px; line-height: 1.85; color: var(--ink-2);
  white-space: pre-wrap; word-break: break-word;
  margin: 16px 0 0;
}

.bd-detail-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-top: 18px; padding-top: 14px; border-top: 0.5px solid var(--line);
}

/* 点赞按钮 */
.bd-like {
  font: inherit; font-size: 13.5px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 13px; border-radius: 999px;
  border: 0.5px solid var(--line-2); background: var(--bg); color: var(--ink-2);
  transition: background .15s, color .15s, border-color .15s;
}
.bd-like:hover { border-color: var(--blue); color: var(--blue-d); }
.bd-like.on {
  background: var(--coral-l); border-color: #E9C4B4; color: var(--coral); font-weight: 500;
}
.bd-like:disabled { opacity: .55; cursor: not-allowed; }

.bd-danger {
  font: inherit; font-size: 13px; cursor: pointer;
  padding: 6px 12px; border-radius: var(--r-s);
  border: 0.5px solid #E9C4B4; background: var(--red-l); color: var(--red);
}
.bd-danger:hover { background: #F7DCDC; }

/* 「私信 TA」：站内私信入口。与点赞按钮同构，但走品牌蓝，表示这是另一个动作。
   二手闲置这类帖子靠它把「交换联系方式」从公开回复里挪进只有双方可见的会话。 */
.bd-dm {
  font: inherit; font-size: 13px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 12px; border-radius: 999px;
  border: 0.5px solid var(--line-2); background: var(--bg); color: var(--blue-d);
  transition: background .15s, color .15s, border-color .15s;
}
.bd-dm:hover { border-color: var(--blue); background: var(--blue-l); }

/* 回复区 */
.bd-replies-head {
  display: flex; align-items: center; gap: 10px;
  margin: 30px 0 14px; padding-bottom: 10px;
  border-bottom: 0.5px solid var(--line);
}
.bd-replies-head h3 { font-size: 16px; font-weight: 600; }
.bd-replies-head span { font-size: 13px; color: var(--ink-3); }

.bd-replies { display: grid; gap: 14px; }

.bd-reply {
  display: flex; gap: 12px;
  padding: 14px 16px; border-radius: var(--r-m);
  background: var(--bg-2); border: 0.5px solid var(--line);
}
.bd-reply.is-hidden { background: var(--amber-l); border-color: #E7D3AE; }
.bd-reply-main { flex: 1 1 auto; min-width: 0; }

.bd-reply-head {
  display: flex; align-items: center; gap: 9px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.bd-reply-name { font-size: 13.5px; font-weight: 600; }
.bd-reply-time { font-size: 12px; color: var(--ink-3); }

.bd-reply-body {
  font-size: 14px; line-height: 1.75; color: var(--ink-2);
  white-space: pre-wrap; word-break: break-word;
}

.bd-reply-foot {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 9px;
}
.bd-reply-foot .bd-mini {
  font: inherit; font-size: 12.5px; cursor: pointer;
  background: none; border: 0; color: var(--ink-3); padding: 2px 0;
}
.bd-reply-foot .bd-mini:hover { color: var(--blue-d); text-decoration: underline; }
.bd-reply-foot .bd-mini.on { color: var(--coral); font-weight: 500; }
.bd-reply-foot .bd-mini.del:hover { color: var(--red); }

.bd-reply-form {
  margin-top: 18px; padding: 16px;
  border: 0.5px solid var(--line-2); border-radius: var(--r-l); background: var(--bg);
}

/* ---------------- 移动端 ---------------- */

@media (max-width: 860px) {
  .bd-hero { padding: 30px 0 6px; }
  .bd-detail-title { font-size: 20px; }
  .bd-tools { width: 100%; }
  .bd-search { width: 100%; flex: 1 1 auto; }
  .bd-row2 { grid-template-columns: 1fr; }
  .bd-item { padding: 14px 15px; }
}

@media (max-width: 480px) {
  .bd-item-top { gap: 9px; }
  .bd-avatar { width: 30px; height: 30px; font-size: 13px; }
  .bd-stat b { font-size: 18px; }
  .bd-item-title { font-size: 15px; }
}

/* 后台「留言管理」的样式不在这里 —— admin.html 不加载本文件，
   放在 assets/admin.css 的末尾（.adm-bd-* 段落）。 */