/* ============================================================
   40_Blue_Ocean - 蓝色海洋主题
   前缀: bo-
   配色: #0077B6(主) / #F0F8FF(背景) / #FFFFFF(表面)
         #1A1A2E(文字) / #00B4D8(强调) / #CAF0F8(边框)
   特色: 海洋蓝渐变、清新蓝色调、波纹装饰、柔和圆角
   注: HTML中部分 class 写成 {p}-forum-post-tag(应为 bo-)，
       此处统一按 bo- 前缀编写，并对空标签做兼容隐藏。
   ============================================================ */

/* ---------- 变量 ---------- */
:root{
  --bo-primary:#0077B6;
  --bo-accent:#00B4D8;
  --bo-deep:#023E8A;
  --bo-light:#90E0EF;
  --bo-bg:#F0F8FF;
  --bo-surface:#FFFFFF;
  --bo-surface-2:#EAF6FD;
  --bo-text:#1A1A2E;
  --bo-text-dim:#5A6A7A;
  --bo-text-faint:#8A9AAB;
  --bo-border:#CAF0F8;
  --bo-border-dark:#90E0EF;
  --bo-radius:12px;
  --bo-radius-sm:8px;
  --bo-max:1240px;
  --bo-font:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Helvetica Neue',Arial,sans-serif;
  --bo-shadow:0 4px 20px rgba(0,119,182,.1);
  --bo-shadow-hover:0 8px 30px rgba(0,119,182,.18);
  --bo-gradient:linear-gradient(135deg,#0077B6,#00B4D8);
}

/* ---------- 重置 ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--bo-font);
  background:var(--bo-bg);
  color:var(--bo-text);
  line-height:1.7;
  font-size:14px;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(ellipse 60% 40% at 100% 0%,rgba(0,180,216,.08) 0%,transparent 60%),
    radial-gradient(ellipse 50% 40% at 0% 100%,rgba(144,224,239,.1) 0%,transparent 60%);
  background-attachment:fixed;
}
a{color:var(--bo-primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--bo-accent)}
img{max-width:100%;display:block}
ul{list-style:none}
input,textarea,button{font-family:inherit;outline:none}

/* ---------- 容器 ---------- */
.bo-container{
  max-width:var(--bo-max);
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 头部 ---------- */
.bo-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--bo-border);
  box-shadow:0 2px 12px rgba(0,119,182,.06);
}
.bo-header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:66px;
}
.bo-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.bo-logo img{height:34px;width:34px}
.bo-logo-text{
  font-size:21px;
  font-weight:800;
  letter-spacing:1px;
  background:var(--bo-gradient);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.bo-nav{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
}
.bo-nav::-webkit-scrollbar{display:none}
.bo-nav-item{
  color:var(--bo-text-dim);
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
  padding:8px 13px;
  white-space:nowrap;
  border-radius:20px;
  transition:all .2s;
}
.bo-nav-item:hover{color:var(--bo-primary);background:var(--bo-surface-2)}
.bo-nav-item.active{
  color:#fff;
  background:var(--bo-gradient);
  box-shadow:0 3px 10px rgba(0,119,182,.3);
}
.bo-header-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.bo-search-mini{
  display:flex;
  align-items:center;
  gap:6px;
  background:var(--bo-surface-2);
  border:1px solid var(--bo-border);
  border-radius:20px;
  padding:7px 14px;
  color:var(--bo-primary);
  transition:all .2s;
}
.bo-search-mini:focus-within{border-color:var(--bo-accent);box-shadow:0 0 0 3px rgba(0,180,216,.15)}
.bo-search-mini input{
  background:none;border:none;color:var(--bo-text);font-size:13px;width:120px;
}
.bo-search-mini input::placeholder{color:var(--bo-text-faint)}
.bo-icon-btn{
  position:relative;
  background:var(--bo-surface-2);
  border:none;
  color:var(--bo-primary);
  cursor:pointer;
  width:38px;height:38px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:all .2s;
}
.bo-icon-btn:hover{background:var(--bo-accent);color:#fff;transform:translateY(-1px)}
.bo-badge{
  position:absolute;
  top:-2px;right:-2px;
  background:#FF6B6B;
  color:#fff;
  font-size:10px;
  font-weight:700;
  min-width:17px;height:17px;
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  padding:0 4px;
  border:2px solid #fff;
}
.bo-avatar-sm img{width:34px;height:34px;border-radius:50%;border:2px solid var(--bo-border-dark)}
.bo-mobile-toggle{display:none}

/* ---------- 横幅 ---------- */
.bo-banner{
  margin:20px 0;
  border-radius:var(--bo-radius);
  overflow:hidden;
  border:1px solid var(--bo-border);
  box-shadow:var(--bo-shadow);
  position:relative;
}
.bo-banner img{width:100%}

/* ---------- 主布局 ---------- */
.bo-main{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:20px;
  margin-bottom:30px;
}
.bo-content{min-width:0}

/* ---------- 板块标题 ---------- */
.bo-section-title{
  font-size:22px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--bo-deep);
  margin-bottom:18px;
  padding-bottom:12px;
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
}
.bo-section-title::before{
  content:"";
  display:inline-block;
  width:5px;height:22px;
  border-radius:3px;
  background:var(--bo-gradient);
}

/* ---------- 论坛板块卡片 ---------- */
.bo-forum-block{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  margin-bottom:16px;
  overflow:hidden;
  transition:all .3s;
  box-shadow:var(--bo-shadow);
}
.bo-forum-block:hover{
  box-shadow:var(--bo-shadow-hover);
  transform:translateY(-2px);
  border-color:var(--bo-border-dark);
}
.bo-forum-head{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 18px;
  border-bottom:1px solid var(--bo-border);
}
.bo-forum-icon{
  width:48px;height:48px;
  flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--bo-radius);
  background:var(--bo-gradient);
  color:#fff;
  box-shadow:0 4px 12px rgba(0,119,182,.25);
}
.bo-forum-info{flex:1;min-width:0}
.bo-forum-name{
  font-size:17px;font-weight:700;letter-spacing:.3px;
  color:var(--bo-deep);
}
.bo-forum-desc{font-size:12px;color:var(--bo-text-dim);margin-top:2px}
.bo-forum-stats{text-align:right;flex-shrink:0}
.bo-stat-num{
  font-size:20px;font-weight:800;
  color:var(--bo-primary);
}
.bo-stat-label{font-size:10px;color:var(--bo-text-faint);letter-spacing:1px;text-transform:uppercase}

/* 板块帖子列表 */
.bo-forum-posts{padding:6px 8px}
.bo-forum-post-link{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;
  color:var(--bo-text);
  font-size:13px;
  border-radius:var(--bo-radius-sm);
  transition:all .2s;
}
.bo-forum-post-link:hover{
  background:var(--bo-surface-2);
  color:var(--bo-primary);
  padding-left:18px;
}
.bo-forum-post-tag{
  flex-shrink:0;
  font-size:10px;font-weight:700;letter-spacing:.5px;
  padding:3px 8px;
  border-radius:12px;
  min-width:38px;text-align:center;
  background:var(--bo-surface-2);
  color:var(--bo-accent);
  border:1px solid var(--bo-border-dark);
}
.bo-forum-post-tag.hot{
  background:#FFE8EC;
  color:#E63946;
  border-color:#FFB3C1;
}
/* 兼容 HTML 中 {p}-forum-post-tag 的 bug：隐藏空标签 */
.bo-forum-post-tag:empty,
[class*="forum-post-tag"]:empty{display:none}
.bo-forum-post-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bo-forum-post-time{flex-shrink:0;font-size:12px;color:var(--bo-text-faint)}

/* ---------- 侧边栏 ---------- */
.bo-sidebar{display:flex;flex-direction:column;gap:16px}
.bo-widget{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  overflow:hidden;
  box-shadow:var(--bo-shadow);
}
.bo-widget-head{
  display:flex;align-items:center;gap:8px;
  padding:14px 18px;
  font-size:14px;font-weight:700;letter-spacing:.3px;
  color:var(--bo-deep);
  border-bottom:1px solid var(--bo-border);
  background:linear-gradient(180deg,var(--bo-surface-2),transparent);
}
.bo-widget-body{padding:14px 18px}
.bo-online-stat{
  display:flex;justify-content:space-between;align-items:center;
  padding:8px 0;
  border-bottom:1px dashed var(--bo-border-dark);
}
.bo-online-stat:last-child{border-bottom:none}
.bo-stat-name{font-size:13px;color:var(--bo-text-dim)}
.bo-stat-val{font-size:16px;font-weight:800;color:var(--bo-primary)}

.bo-hot-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 0;
  border-bottom:1px dashed var(--bo-border-dark);
}
.bo-hot-item:last-child{border-bottom:none}
.bo-hot-rank{
  flex-shrink:0;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;
  border-radius:50%;
  background:var(--bo-surface-2);
  color:var(--bo-text-dim);
}
.bo-hot-rank.top{
  background:var(--bo-gradient);
  color:#fff;
  box-shadow:0 3px 8px rgba(0,119,182,.3);
}
.bo-hot-title{flex:1;font-size:13px;color:var(--bo-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.bo-hot-title:hover{color:var(--bo-primary)}
.bo-hot-views{flex-shrink:0;font-size:11px;color:var(--bo-text-faint)}

/* ---------- 按钮 ---------- */
.bo-btn{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:700;letter-spacing:.3px;
  padding:10px 22px;
  border-radius:25px;
  cursor:pointer;
  border:none;
  background:var(--bo-gradient);
  color:#fff;
  transition:all .25s;
  box-shadow:0 4px 12px rgba(0,119,182,.3);
}
.bo-btn:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(0,119,182,.4);
}

/* ---------- 面包屑 ---------- */
.bo-breadcrumb{
  display:flex;align-items:center;gap:8px;
  padding:16px 0;
  font-size:13px;color:var(--bo-text-dim);
}
.bo-breadcrumb a{color:var(--bo-primary)}
.bo-breadcrumb a:hover{color:var(--bo-accent)}
.bo-sep{color:var(--bo-border-dark)}

/* ---------- 板块信息(list) ---------- */
.bo-board-info{
  display:flex;align-items:center;gap:18px;
  padding:22px;
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  margin-bottom:20px;
  box-shadow:var(--bo-shadow);
  position:relative;
  overflow:hidden;
}
.bo-board-info::after{
  content:"";
  position:absolute;
  right:-30px;top:-30px;
  width:120px;height:120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,180,216,.12),transparent 70%);
}
.bo-board-icon{
  width:60px;height:60px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--bo-radius);
  background:var(--bo-gradient);
  color:#fff;
  box-shadow:0 4px 14px rgba(0,119,182,.3);
}
.bo-board-text{flex:1;position:relative;z-index:1}
.bo-board-name{font-size:22px;font-weight:800;color:var(--bo-deep);letter-spacing:.3px}
.bo-board-desc{font-size:13px;color:var(--bo-text-dim);margin:4px 0 10px}
.bo-board-meta{display:flex;gap:20px;font-size:12px;color:var(--bo-text-dim);flex-wrap:wrap}
.bo-board-meta strong{color:var(--bo-primary);font-weight:700}

/* ---------- 帖子列表(list) ---------- */
.bo-post-list{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  overflow:hidden;
  margin-bottom:20px;
  box-shadow:var(--bo-shadow);
}
.bo-post-list-head{
  display:grid;
  grid-template-columns:1fr 130px 70px 80px 90px;
  gap:10px;
  padding:14px 18px;
  font-size:12px;font-weight:700;letter-spacing:.5px;
  color:var(--bo-text-dim);
  text-transform:uppercase;
  border-bottom:1px solid var(--bo-border);
  background:var(--bo-surface-2);
}
.bo-post-row{
  display:grid;
  grid-template-columns:1fr 130px 70px 80px 90px;
  gap:10px;
  align-items:center;
  padding:14px 18px;
  border-bottom:1px solid var(--bo-border);
  color:var(--bo-text);
  transition:background .2s;
}
.bo-post-row:last-child{border-bottom:none}
.bo-post-row:hover{background:var(--bo-surface-2)}
.bo-post-title-cell{min-width:0}
.bo-post-title-link{display:flex;align-items:center;gap:8px}
.bo-post-title-text{font-size:14px;font-weight:600;color:var(--bo-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bo-post-title-text:hover{color:var(--bo-primary)}
.bo-post-author{font-size:13px;color:var(--bo-primary)}
.bo-post-num{font-size:13px;color:var(--bo-text-dim);text-align:center}
.bo-post-time{font-size:12px;color:var(--bo-text-faint)}

/* ---------- 分页 ---------- */
.bo-pagination{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;padding:12px 0}
.bo-page-btn{
  min-width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  padding:0 12px;
  font-size:13px;font-weight:600;
  border-radius:50%;
  cursor:pointer;
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  color:var(--bo-text-dim);
  transition:all .2s;
}
.bo-page-btn:hover{border-color:var(--bo-accent);color:var(--bo-primary);background:var(--bo-surface-2)}
.bo-page-btn.active{
  background:var(--bo-gradient);
  color:#fff;border-color:transparent;
  box-shadow:0 3px 10px rgba(0,119,182,.3);
}

/* ---------- 详情页 ---------- */
.bo-detail-title{
  font-size:26px;font-weight:800;line-height:1.4;
  color:var(--bo-deep);
  margin-bottom:12px;letter-spacing:.3px;
}
.bo-detail-meta{
  display:flex;gap:20px;flex-wrap:wrap;
  font-size:12px;color:var(--bo-text-dim);
  padding-bottom:16px;margin-bottom:20px;
  border-bottom:1px solid var(--bo-border);
}
.bo-detail-meta span{display:inline-flex;align-items:center;gap:5px}
.bo-detail-meta svg{color:var(--bo-accent)}

.bo-post-floor{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:var(--bo-shadow);
}
.bo-post-floor-head{
  display:flex;align-items:center;gap:12px;
  padding:16px 20px;
  border-bottom:1px solid var(--bo-border);
  background:linear-gradient(180deg,var(--bo-surface-2),transparent);
}
.bo-post-floor-avatar img{width:44px;height:44px;border-radius:50%;border:2px solid var(--bo-border-dark)}
.bo-post-floor-user{flex:1}
.bo-post-floor-name{font-size:15px;font-weight:700;color:var(--bo-deep)}
.bo-post-floor-role{font-size:11px;color:var(--bo-text-faint)}
.bo-post-floor-num{font-size:14px;font-weight:800;color:var(--bo-accent)}
.bo-post-floor-body{padding:20px}
.bo-post-floor-content p{margin-bottom:14px;line-height:1.8;font-size:14px;color:var(--bo-text)}
.bo-floor-tag{
  display:inline-block;
  font-size:11px;font-weight:700;letter-spacing:.3px;
  padding:3px 10px;border-radius:12px;margin-right:8px;
  background:var(--bo-surface-2);color:var(--bo-primary);
  border:1px solid var(--bo-border-dark);
}
.bo-post-floor-img{margin:14px 0;border-radius:var(--bo-radius-sm);overflow:hidden;border:1px solid var(--bo-border)}
.bo-post-floor-actions{
  display:flex;gap:20px;flex-wrap:wrap;
  margin-top:16px;padding-top:16px;
  border-top:1px solid var(--bo-border);
}
.bo-post-floor-actions a{
  display:inline-flex;align-items:center;gap:5px;
  font-size:13px;color:var(--bo-text-dim);
  padding:6px 14px;border-radius:20px;
  background:var(--bo-surface-2);
  transition:all .2s;
}
.bo-post-floor-actions a:hover{color:var(--bo-primary);background:var(--bo-border)}

.bo-reply-box{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  padding:20px;
  box-shadow:var(--bo-shadow);
}
.bo-reply-box h3{font-size:16px;font-weight:700;color:var(--bo-deep);margin-bottom:14px;letter-spacing:.3px}
.bo-reply-box textarea{
  width:100%;min-height:120px;resize:vertical;
  background:var(--bo-bg);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius-sm);
  padding:14px;color:var(--bo-text);font-size:14px;line-height:1.6;
  transition:all .2s;
}
.bo-reply-box textarea:focus{border-color:var(--bo-accent);box-shadow:0 0 0 3px rgba(0,180,216,.15)}
.bo-reply-box textarea::placeholder{color:var(--bo-text-faint)}
.bo-reply-box-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:14px;flex-wrap:wrap;gap:10px}
.bo-reply-tools{display:flex;gap:4px}
.bo-reply-tool{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--bo-surface-2);
  border:1px solid var(--bo-border);
  color:var(--bo-text-dim);cursor:pointer;
  transition:all .2s;
}
.bo-reply-tool:hover{color:var(--bo-primary);border-color:var(--bo-accent);background:var(--bo-border)}

/* ---------- 搜索页 ---------- */
.bo-search-hero{
  text-align:center;
  padding:48px 24px;
  margin-bottom:20px;
  background:linear-gradient(135deg,var(--bo-surface-2),var(--bo-surface));
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  position:relative;
  overflow:hidden;
  box-shadow:var(--bo-shadow);
}
/* 波纹装饰 */
.bo-search-hero::before{
  content:"";
  position:absolute;
  bottom:-40px;left:-40px;
  width:200px;height:200px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,180,216,.1),transparent 70%);
}
.bo-search-hero::after{
  content:"";
  position:absolute;
  top:-30px;right:-30px;
  width:150px;height:150px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,119,182,.08),transparent 70%);
}
.bo-search-hero h2{font-size:32px;font-weight:800;color:var(--bo-deep);letter-spacing:2px;margin-bottom:22px;position:relative;z-index:1}
.bo-search-big{
  display:flex;gap:10px;max-width:620px;margin:0 auto;
  position:relative;z-index:1;
}
.bo-search-big input{
  flex:1;
  background:var(--bo-surface);
  border:1px solid var(--bo-border-dark);
  border-radius:25px;
  padding:13px 22px;color:var(--bo-text);font-size:15px;
  transition:all .2s;
}
.bo-search-big input:focus{border-color:var(--bo-accent);box-shadow:0 0 0 3px rgba(0,180,216,.15)}
.bo-search-big button{
  display:inline-flex;align-items:center;gap:6px;
  padding:13px 28px;
  border-radius:25px;cursor:pointer;
  background:var(--bo-gradient);
  border:none;color:#fff;font-weight:700;letter-spacing:.3px;
  box-shadow:0 4px 14px rgba(0,119,182,.3);
  transition:all .25s;
}
.bo-search-big button:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,119,182,.4)}
.bo-hot-search{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:20px;position:relative;z-index:1}
.bo-hot-search-item{
  font-size:12px;padding:6px 16px;border-radius:20px;
  background:var(--bo-surface);color:var(--bo-primary);
  border:1px solid var(--bo-border-dark);cursor:pointer;
  transition:all .2s;
}
.bo-hot-search-item:hover{background:var(--bo-accent);color:#fff;border-color:var(--bo-accent)}

.bo-search-filters{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.bo-filter-label{font-size:13px;color:var(--bo-text-dim);font-weight:600}
.bo-filter-chip{
  font-size:12px;padding:6px 16px;border-radius:20px;cursor:pointer;
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  color:var(--bo-text-dim);
  transition:all .2s;
}
.bo-filter-chip:hover{color:var(--bo-primary);border-color:var(--bo-accent)}
.bo-filter-chip.active{
  background:var(--bo-gradient);
  color:#fff;border-color:transparent;
  box-shadow:0 3px 10px rgba(0,119,182,.25);
}

.bo-search-result{
  display:flex;gap:14px;padding:16px 18px;
  border-bottom:1px solid var(--bo-border);
  transition:background .2s;
}
.bo-search-result:first-child{border-top:none}
.bo-search-result:hover{background:var(--bo-surface-2)}
.bo-search-result-icon{
  flex-shrink:0;width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--bo-radius-sm);
  background:var(--bo-surface-2);color:var(--bo-primary);
  border:1px solid var(--bo-border);
}
.bo-search-result-body{flex:1;min-width:0}
.bo-search-result-title{font-size:15px;font-weight:700;color:var(--bo-deep);margin-bottom:5px}
.bo-search-result-title:hover{color:var(--bo-primary)}
.bo-search-result-summary{font-size:13px;color:var(--bo-text-dim);line-height:1.6;margin-bottom:6px}
.bo-search-result-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--bo-text-faint)}
.bo-board-tag{color:var(--bo-accent);font-weight:600}

/* ---------- 页脚 ---------- */
.bo-footer{
  border-top:1px solid var(--bo-border);
  background:linear-gradient(180deg,var(--bo-surface),var(--bo-bg));
  margin-top:24px;
}
.bo-footer-inner{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:36px;
  padding:40px 0 28px;
}
.bo-footer-col h4{
  font-size:14px;font-weight:800;letter-spacing:.3px;
  color:var(--bo-deep);
  margin-bottom:16px;
  position:relative;
  padding-bottom:10px;
}
.bo-footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:30px;height:3px;
  border-radius:2px;
  background:var(--bo-gradient);
}
.bo-footer-col li{margin-bottom:9px}
.bo-footer-col a{font-size:13px;color:var(--bo-text-dim)}
.bo-footer-col a:hover{color:var(--bo-primary)}
.bo-footer-bottom{
  text-align:center;
  padding:18px 0;
  font-size:12px;color:var(--bo-text-faint);
  border-top:1px solid var(--bo-border);
  letter-spacing:.3px;
}

/* ============================================================
   响应式 - 平板 (max-width:1024px)
   ============================================================ */
@media(max-width:1024px){
  .bo-main{grid-template-columns:1fr;gap:20px}
  .bo-sidebar{order:2}
  .bo-post-list-head,.bo-post-row{grid-template-columns:1fr 110px 60px 70px}
  .bo-post-list-head>div:nth-child(5),.bo-post-row>div:nth-child(5){display:none}
  .bo-footer-inner{grid-template-columns:repeat(2,1fr);gap:30px}
}

/* ============================================================
   响应式 - 手机 (max-width:768px)
   ============================================================ */
@media(max-width:768px){
  .bo-container{padding:0 14px}
  .bo-header-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:10px}
  .bo-search-mini{display:none}
  .bo-mobile-toggle{display:flex}
  .bo-nav{
    order:3;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
    gap:2px;
  }
  .bo-nav.open{max-height:600px}
  .bo-nav-item{padding:12px 14px;border-radius:var(--bo-radius-sm)}
  .bo-nav-item.active{border-radius:var(--bo-radius-sm)}
  .bo-logo-text{font-size:18px}
  .bo-section-title{font-size:19px}
  .bo-detail-title{font-size:20px}
  .bo-board-info{flex-wrap:wrap}
  .bo-board-info .bo-btn{width:100%;justify-content:center}
  .bo-post-list-head{display:none}
  .bo-post-row{
    grid-template-columns:1fr;
    gap:6px;padding:16px;
  }
  .bo-post-row>div{padding:2px 0}
  .bo-post-author,.bo-post-num{text-align:left}
  .bo-search-hero{padding:32px 18px}
  .bo-search-hero h2{font-size:24px;letter-spacing:1px}
  .bo-search-big{flex-direction:column}
  .bo-search-big button{justify-content:center}
  .bo-reply-box-bottom{flex-direction:column;align-items:stretch}
  .bo-reply-box-bottom .bo-btn{justify-content:center}
  .bo-footer-inner{grid-template-columns:1fr;gap:24px}
}

/* ============================================================
   CMS 专用扩展样式（追加于源模板之后）
   适配 40_Blue_Ocean 海洋蓝主题变量
   --bo-primary #0077B6 / --bo-accent #00B4D8 / --bo-deep #023E8A
   包含: 分页 / 评论系统 / 登录注册 / 问答最佳答案 / 问答宽屏适配
   注: ask.css 在 style.css 之后加载，故 qa-wide 覆盖样式
       使用 .bo-container 祖先选择器提高特异性以确保生效。
   ============================================================ */

/* ---------- CMS 分页 (jv-pagination 标签输出) ---------- */
.jv-pagination{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  margin:24px 0;
  padding:14px 16px;
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
}
.jv-page-info{
  font-size:13px;
  color:var(--bo-text-dim);
  margin-right:8px;
  white-space:nowrap;
}
.jv-page-btn,.jv-page-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:36px;
  height:36px;
  padding:0 12px;
  font-size:13px;
  color:var(--bo-text);
  background:var(--bo-surface);
  border:1px solid var(--bo-border-dark);
  border-radius:var(--bo-radius-sm);
  cursor:pointer;
  text-decoration:none;
  transition:all .2s;
}
.jv-page-btn:hover,.jv-page-num:hover{
  color:var(--bo-primary);
  border-color:var(--bo-accent);
  background:var(--bo-surface-2);
}
.jv-page-num.active{
  background:var(--bo-gradient);
  color:#fff;
  border-color:transparent;
  font-weight:700;
  box-shadow:0 3px 10px rgba(0,119,182,.25);
}
.jv-page-btn.disabled,.jv-page-num.disabled{
  color:var(--bo-text-faint);
  cursor:not-allowed;
  opacity:.55;
  pointer-events:none;
}
.jv-page-dots{
  display:inline-flex;
  align-items:center;
  padding:0 4px;
  font-size:13px;
  color:var(--bo-text-faint);
}

/* ---------- 评论系统 ---------- */
.comment-section{margin-top:8px}
.comment-list{display:flex;flex-direction:column;gap:0}
.comment-item{
  display:flex;
  gap:14px;
  padding:18px 4px;
  border-bottom:1px solid var(--bo-border);
}
.comment-item:last-child{border-bottom:none}
.comment-avatar{
  flex-shrink:0;
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--bo-gradient);
  color:#fff;
  font-weight:700;
  font-size:16px;
  box-shadow:0 3px 8px rgba(0,119,182,.18);
}
.comment-main{flex:1;min-width:0}
.comment-head{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:6px;
}
.comment-author{font-size:14px;font-weight:700;color:var(--bo-deep)}
.comment-reply-to{font-size:12px;color:var(--bo-text-faint)}
.comment-time{font-size:12px;color:var(--bo-text-faint)}
.comment-content{
  font-size:14px;
  color:var(--bo-text);
  line-height:1.7;
  word-break:break-word;
}
.comment-actions{margin-top:6px}
.comment-reply-btn{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  color:var(--bo-primary);
  background:transparent;
  border:none;
  padding:2px 6px;
  border-radius:var(--bo-radius-sm);
  cursor:pointer;
  transition:all .2s;
}
.comment-reply-btn:hover{color:var(--bo-accent);background:var(--bo-surface-2)}
.comment-reply-form{
  margin-top:10px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.comment-reply-input{
  width:100%;
  min-height:64px;
  padding:10px 12px;
  font-size:13px;
  color:var(--bo-text);
  background:var(--bo-bg);
  border:1px solid var(--bo-border-dark);
  border-radius:var(--bo-radius-sm);
  resize:vertical;
  outline:none;
  font-family:inherit;
  line-height:1.6;
  box-sizing:border-box;
  transition:border-color .2s,box-shadow .2s;
}
.comment-reply-input:focus{
  border-color:var(--bo-accent);
  box-shadow:0 0 0 3px rgba(0,180,216,.15);
}
.comment-reply-submit{
  align-self:flex-start;
  padding:7px 18px;
  font-size:13px;
  font-weight:600;
  color:#fff;
  background:var(--bo-gradient);
  border:none;
  border-radius:var(--bo-radius-sm);
  cursor:pointer;
  box-shadow:0 3px 10px rgba(0,119,182,.2);
  transition:all .2s;
}
.comment-reply-submit:hover{transform:translateY(-1px);box-shadow:0 5px 14px rgba(0,119,182,.3)}
.comment-replies{
  margin-top:8px;
  padding-left:56px;
  display:flex;
  flex-direction:column;
  gap:0;
}
.comment-reply-item{
  padding:12px 14px;
  background:var(--bo-surface-2);
  border-radius:var(--bo-radius-sm);
  border-bottom:none;
  margin-bottom:6px;
}
.comment-reply-item .comment-avatar{width:32px;height:32px;font-size:13px}
.comment-empty{
  text-align:center;
  padding:36px 0;
  font-size:14px;
  color:var(--bo-text-faint);
}
.comment-load-more{text-align:center;padding:18px 0}
.comment-load-more-btn{
  font-size:13px;
  padding:9px 26px;
  color:var(--bo-primary);
  background:var(--bo-surface);
  border:1px solid var(--bo-border-dark);
  border-radius:20px;
  cursor:pointer;
  transition:all .2s;
}
.comment-load-more-btn:hover{
  color:#fff;
  background:var(--bo-gradient);
  border-color:transparent;
}
.comment-submit-btn{
  font-size:14px;
  padding:10px 28px;
  font-weight:700;
  color:#fff;
  background:var(--bo-gradient);
  border:none;
  border-radius:25px;
  cursor:pointer;
  box-shadow:0 4px 14px rgba(0,119,182,.3);
  transition:all .25s;
}
.comment-submit-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,119,182,.4)}
.comment-submit-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.comment-count{color:var(--bo-accent);font-weight:600}
.comment-char-count{font-size:13px;color:var(--bo-text-faint)}
.comment-login-notice a.bo-btn{background:var(--bo-gradient);border:none;color:#fff}

/* ---------- 登录 / 注册页面 ---------- */
.bo-auth-wrap{
  display:flex;
  justify-content:center;
  padding:48px 20px;
}
.bo-auth-box{
  width:100%;
  max-width:420px;
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  border-radius:var(--bo-radius);
  box-shadow:var(--bo-shadow);
  overflow:hidden;
}
.bo-auth-header{
  padding:32px 36px 22px;
  text-align:center;
  background:linear-gradient(180deg,var(--bo-surface-2),var(--bo-surface));
  border-bottom:1px solid var(--bo-border);
}
.bo-auth-header h1{
  font-size:24px;
  font-weight:800;
  color:var(--bo-deep);
  letter-spacing:1px;
  margin-bottom:8px;
}
.bo-auth-header p{font-size:13px;color:var(--bo-text-dim)}
.bo-auth-form{padding:28px 36px 8px}
.bo-auth-group{margin-bottom:18px}
.bo-auth-group label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--bo-text-dim);
  margin-bottom:8px;
}
.bo-auth-group input{
  width:100%;
  padding:12px 14px;
  font-size:14px;
  color:var(--bo-text);
  background:var(--bo-bg);
  border:1px solid var(--bo-border-dark);
  border-radius:var(--bo-radius-sm);
  outline:none;
  font-family:inherit;
  box-sizing:border-box;
  transition:border-color .2s,box-shadow .2s;
}
.bo-auth-group input:focus{
  border-color:var(--bo-accent);
  box-shadow:0 0 0 3px rgba(0,180,216,.15);
}
.bo-auth-submit{
  width:100%;
  padding:13px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.5px;
  color:#fff;
  background:var(--bo-gradient);
  border:none;
  border-radius:var(--bo-radius-sm);
  cursor:pointer;
  box-shadow:0 4px 14px rgba(0,119,182,.3);
  transition:all .25s;
}
.bo-auth-submit:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,119,182,.4)}
.bo-auth-footer{
  padding:18px 36px 30px;
  text-align:center;
  font-size:13px;
  color:var(--bo-text-dim);
  border-top:1px solid var(--bo-border);
  background:var(--bo-bg);
}
.bo-auth-link{color:var(--bo-primary);font-weight:600;margin-left:4px}
.bo-auth-link:hover{color:var(--bo-accent)}

/* ---------- 问答最佳答案 ---------- */
.bo-best-answer{
  position:relative;
  background:linear-gradient(180deg,var(--bo-surface-2),var(--bo-surface));
  border:1px solid var(--bo-accent);
  border-radius:var(--bo-radius);
  padding:20px 22px;
  margin-bottom:14px;
  box-shadow:0 4px 16px rgba(0,180,216,.12);
}
.bo-best-answer::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:var(--bo-gradient);
  border-radius:var(--bo-radius) 0 0 var(--bo-radius);
}

/* ============================================================
   问答系统宽屏适配 (覆盖 ask.css 中的论坛蓝色 #3B82F6)
   将配色统一为海洋蓝主题
   使用 .bo-container 祖先选择器提高特异性(0,2,0 > 0,1,0)
   ============================================================ */
.bo-container .qa-wide-hero{
  background:var(--bo-gradient);
  box-shadow:0 20px 60px rgba(0,119,182,.28);
}
.bo-container .qa-wide-hero-tips span::before{background:var(--bo-light)}
.bo-container .qa-wide-content{
  background:var(--bo-surface);
  border:1px solid var(--bo-border);
  box-shadow:var(--bo-shadow);
}
.bo-container .qa-wide-list-header{border-bottom:2px solid var(--bo-border)}
.bo-container .qa-wide-list-title{color:var(--bo-deep)}
.bo-container .qa-wide-search-input:focus{border-color:var(--bo-primary)}
.bo-container .qa-wide-search-btn{
  background:var(--bo-gradient);
  border-color:transparent;
}
.bo-container .qa-wide-search-btn:hover{background:var(--bo-deep);border-color:transparent}
.bo-container .qa-wide-card{
  background:var(--bo-surface-2);
  border:1px solid var(--bo-border);
}
.bo-container .qa-wide-card:hover{
  background:var(--bo-surface);
  border-color:var(--bo-border-dark);
  box-shadow:var(--bo-shadow-hover);
}
.bo-container .qa-wide-card-title,
.bo-container .qa-wide-card-title a{color:var(--bo-text)}
.bo-container .qa-wide-card-title a:hover{color:var(--bo-primary)}
.bo-container .qa-wide-card-answers,
.bo-container .qa-wide-card-answers strong{color:var(--bo-primary)}
.bo-container .qa-wide-card-dot{color:var(--bo-border-dark)}
.bo-container .qa-wide-pagination{border-top:1px solid var(--bo-border)}
.bo-container .qa-wide-pagination .jv-pagination a:hover{
  border-color:var(--bo-primary);
  color:var(--bo-primary);
}
.bo-container .qa-wide-pagination .jv-pagination a.active{
  background:var(--bo-gradient);
  border-color:transparent;
  color:#fff;
}
.bo-container .qa-wide-cat-nav-item.active{
  background:var(--bo-gradient);
  color:#fff;
  border-color:transparent;
}

/* ---------- 移动端响应式补充 ---------- */
@media(max-width:768px){
  .comment-item{padding:14px 0;gap:10px}
  .comment-avatar{width:36px;height:36px;font-size:14px}
  .comment-replies{padding-left:46px;margin-top:6px}
  .comment-reply-item{padding:10px 12px}
  .comment-reply-item .comment-avatar{width:28px;height:28px;font-size:12px}
  .comment-head{gap:8px}
  .comment-reply-input{min-height:56px}
  .bo-auth-wrap{padding:24px 14px}
  .bo-auth-header{padding:24px 20px 18px}
  .bo-auth-form{padding:22px 20px 6px}
  .bo-auth-footer{padding:16px 20px 24px}
  .jv-pagination{gap:4px;padding:12px 10px;justify-content:center}
  .jv-page-btn,.jv-page-num{min-width:32px;height:32px;padding:0 8px;font-size:12px}
  .bo-container .qa-wide-hero{padding:30px 20px}
  .bo-container .qa-wide-content{padding:22px 16px 26px}
  .bo-container .qa-wide-card{padding:18px 16px}
}