/* ChatBBS 默认主题 —— 白色 + 浅灰，右侧边栏，支持暗色模式 */

:root {
  --color-primary: #4D698E;
  --color-primary-dark: #3C536F;
  --color-primary-light: #EEF2F7;
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-alt: #fafbfc;
  --color-border: #eceff3;
  --color-border-strong: #e0e3e8;
  --color-text: #1f2329;
  --color-text-sub: #4e5969;
  --color-text-muted: #8a919f;
  --color-success: #52c41a;
  --color-warning: #fa8c16;
  --color-danger: #d93026;
  --color-link: #4D698E;
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(20, 30, 50, .05);
  --shadow: 0 4px 16px rgba(20, 30, 50, .08);
  --header-height: 56px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

html[data-theme="dark"] {
  --color-bg: #14161a;
  --color-surface: #1c1f24;
  --color-surface-alt: #21252b;
  --color-border: #2c3138;
  --color-border-strong: #3a4048;
  --color-text: #e5e6eb;
  --color-text-sub: #a9aeb8;
  --color-text-muted: #7a8089;
  --color-primary-light: #23303F;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow: 0 4px 16px rgba(0, 0, 0, .4);
}


/* ---------- 内置色调主题 ---------- */
html[data-palette="green"] {
  --color-bg: #eef4e6; --color-surface: #fbfdf7; --color-surface-alt: #f3f8ed;
  --color-border: #dde8d3; --color-border-strong: #cbd9bf;
  --color-text: #25321f; --color-text-sub: #4d5c45; --color-text-muted: #7d8b74;
  --color-primary: #4f7a35; --color-primary-dark: #3d6227; --color-primary-light: #e7f1dd; --color-link: #4f7a35;
}
html[data-theme="dark"][data-palette="green"] {
  --color-bg: #151b12; --color-surface: #1d2518; --color-surface-alt: #232c1c;
  --color-border: #33402b; --color-border-strong: #44543a;
  --color-text: #e4ecd9; --color-text-sub: #b1c0a4; --color-text-muted: #7f8d75;
  --color-primary: #8fbf6a; --color-primary-dark: #6f9c4f; --color-primary-light: #2a3a22; --color-link: #a8d48a;
}
html[data-palette="retro"] {
  --color-bg: #f4ecd8; --color-surface: #fffaf0; --color-surface-alt: #faf3e4;
  --color-border: #e8dcc4; --color-border-strong: #d9c9aa;
  --color-text: #3e3527; --color-text-sub: #6b5c45; --color-text-muted: #94846c;
  --color-primary: #a76b2d; --color-primary-dark: #835020; --color-primary-light: #f2e3c9; --color-link: #a76b2d;
}
html[data-theme="dark"][data-palette="retro"] {
  --color-bg: #1d1913; --color-surface: #262016; --color-surface-alt: #2e271b;
  --color-border: #443a2a; --color-border-strong: #5a4b35;
  --color-text: #efe4ce; --color-text-sub: #c0b094; --color-text-muted: #8e7f68;
  --color-primary: #d8a75a; --color-primary-dark: #b8863d; --color-primary-light: #3a2f1e; --color-link: #e0b76b;
}
html[data-palette="blackgold"] {
  --color-bg: #0f0e0b; --color-surface: #181611; --color-surface-alt: #211e17;
  --color-border: #332e23; --color-border-strong: #4a4130;
  --color-text: #f3e7c9; --color-text-sub: #cfbea0; --color-text-muted: #9a8a6d;
  --color-primary: #c9a227; --color-primary-dark: #a88418; --color-primary-light: #2c2517; --color-link: #d8b84a;
}
html[data-theme="dark"][data-palette="blackgold"] {
  --color-bg: #0b0a08; --color-surface: #14120d; --color-surface-alt: #1c1913;
  --color-border: #2e291f; --color-border-strong: #453c2a;
  --color-text: #f7eccf; --color-text-sub: #d6c6a7; --color-text-muted: #a29171;
  --color-primary: #d8b33c; --color-primary-dark: #b89424; --color-primary-light: #2e2818; --color-link: #e6c65a;
}
html[data-palette="orange"] {
  --color-bg: #fff4e8; --color-surface: #fffaf4; --color-surface-alt: #fff1e2;
  --color-border: #f2ddc9; --color-border-strong: #e4c7ac;
  --color-text: #3a2a1e; --color-text-sub: #6f5340; --color-text-muted: #9c7f68;
  --color-primary: #e05d2a; --color-primary-dark: #b8471c; --color-primary-light: #ffe6d6; --color-link: #d94f1f;
}
html[data-theme="dark"][data-palette="orange"] {
  --color-bg: #1c130e; --color-surface: #261a12; --color-surface-alt: #2f2016;
  --color-border: #463324; --color-border-strong: #5d4430;
  --color-text: #f3e2d4; --color-text-sub: #c9ad99; --color-text-muted: #9b7b64;
  --color-primary: #ff854f; --color-primary-dark: #e56732; --color-primary-light: #3d2417; --color-link: #ff9a6b;
}

/* 外观 / 色调下拉 */
.cb-theme-menu .cb-dropdown__menu { width: 190px; }
.cb-theme-menu__list { padding: 6px; }
.cb-theme-menu__label { padding: 7px 8px 3px; font-size: 11px; color: var(--color-text-muted); }
.cb-theme-choice {
  display: block; width: 100%; padding: 7px 8px; border: 0; border-radius: var(--radius-sm);
  background: transparent; color: var(--color-text-sub); text-align: left; cursor: pointer; font-size: 13px;
}
.cb-theme-choice:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-theme-choice.on { color: var(--color-primary); background: var(--color-primary-light); font-weight: 600; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
/* 页脚常驻底部：body 用纵向 flex，主内容区自动撑满剩余高度 */
body.cb-body { display: flex; flex-direction: column; min-height: 100vh; }
.cb-header, .cb-footer { flex: none; }
.cb-main { flex: 1 0 auto; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
/* 抽屉展开时锁定滚动 */
body.cb-drawer-open { overflow: hidden; }
a { color: var(--color-link); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; vertical-align: middle; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: var(--radius-sm); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ---------- 顶部导航 ---------- */
.cb-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--cb-header-bg, var(--color-surface));
  color: var(--cb-header-text, var(--color-text));
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}
.cb-header .cb-logo__text,
.cb-header .cb-nav a,
.cb-header .cb-icon-btn,
.cb-header .cb-search input { color: var(--cb-header-text, var(--color-text)); }
.cb-header .cb-nav a.active { color: var(--color-primary); }
.cb-header__inner {
  max-width: 1200px; margin: 0 auto; padding: 0 16px;
  height: var(--header-height); display: flex; align-items: center; gap: 16px;
}
/* ---------- 复古像素图标 ---------- */
:root {
  --ico-out: #2b3644;
  --ico-paper: #fffdf6;
  --ico-white: #ffffff;
  --ico-yel: #f0c04a;
  --ico-yel2: #ffe1a1;
  --ico-red: #c9483a;
  --ico-green: #5f8a48;
  --ico-blue: #3b6ea5;
  --ico-blue2: #8fbde6;
  --ico-gray: #98a3ae;
}
html[data-theme="dark"] {
  --ico-out: #ced7e2;
  --ico-paper: #404a57;
  --ico-white: #2a3038;
  --ico-blue2: #37506b;
  --ico-gray: #7d8894;
}
.cb-ico { width: 16px; height: 16px; display: inline-block; vertical-align: -3px; flex: none; }
.cb-ico-lg { width: 18px; height: 18px; vertical-align: -4px; }
.cb-ico-xl { width: 36px; height: 36px; vertical-align: -8px; }
.cb-ico-2xl { width: 48px; height: 48px; vertical-align: -10px; }

.cb-logo { display: flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 700; color: var(--color-text); }
.cb-logo img { height: 30px; max-width: 190px; object-fit: contain; }
.cb-logo__text { letter-spacing: .3px; }
.cb-nav { display: flex; align-items: center; gap: 2px; flex: 1; overflow-x: auto; scrollbar-width: none; }
/* 左侧抽屉（移动端）内的标题栏，桌面端隐藏 */
.cb-drawer__head { display: none; }
.cb-header__main { flex: 1; display: flex; align-items: center; gap: 16px; min-width: 0; }
.cb-drawer-mask { display: none; }
.cb-nav::-webkit-scrollbar { display: none; }
.cb-nav a {
  padding: 6px 12px; border-radius: var(--radius); color: var(--color-text-sub);
  white-space: nowrap; font-size: 14px; transition: all .15s;
}
.cb-nav a:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-nav a.active { color: var(--color-primary); background: var(--color-primary-light); font-weight: 500; }
.cb-header__right { display: flex; align-items: center; gap: 8px; }

/* 搜索框：默认收窄，聚焦时向左延展 */
.cb-icon-btn .ico-light, .cb-icon-btn .ico-dark { display: inline-flex; }
[data-theme-toggle] .ico-dark { display: none; }
html[data-theme="dark"] [data-theme-toggle] .ico-light { display: none; }
html[data-theme="dark"] [data-theme-toggle] .ico-dark { display: inline-flex; }
.cb-search { position: relative; display: flex; align-items: center; justify-content: flex-end; }
.cb-search input {
  width: 132px; height: 32px; padding: 0 12px;
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  background: var(--color-surface-alt); color: var(--color-text); outline: none;
  transition: width .28s cubic-bezier(.4, 0, .2, 1), border-color .15s, background .15s;
}
.cb-search input::placeholder { color: var(--color-text-muted); }
.cb-search input:focus {
  width: 260px; border-color: var(--color-primary); background: var(--color-surface);
}
@media (max-width: 900px) {
  .cb-search input { width: 92px; }
  .cb-search input:focus { width: 150px; }
}

.cb-icon-btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: var(--radius); color: var(--color-text-sub);
  border: none; background: transparent; cursor: pointer;
}
.cb-icon-btn:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-badge {
  position: absolute; top: -2px; right: -2px; min-width: 16px; height: 16px; padding: 0 4px;
  background: var(--color-danger); color: #fff; border-radius: var(--radius);
  font-size: 11px; line-height: 16px; text-align: center;
}
.cb-avatar { border-radius: 50%; object-fit: cover; background: var(--color-border); }
.cb-avatar-sm { width: 28px; height: 28px; }
.cb-avatar-md { width: 44px; height: 44px; }
.cb-avatar-lg { width: 80px; height: 80px; }

.cb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 16px; border: 1px solid var(--color-border);
  border-radius: var(--radius); background: var(--color-surface); color: var(--color-text);
  cursor: pointer; font-size: 14px; transition: all .15s; text-decoration: none;
}
.cb-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cb-btn.primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.cb-btn.primary:hover { background: var(--color-primary-dark); color: #fff; }
.cb-btn.danger { color: var(--color-danger); border-color: var(--color-danger); }
.cb-btn.sm { height: 28px; padding: 0 12px; font-size: 13px; }
.cb-btn.lg { height: 40px; padding: 0 24px; }
.cb-btn.block { width: 100%; }
.cb-btn:disabled { opacity: .5; cursor: not-allowed; }

/* 「发布主题」按钮：纯色扁平，不再使用渐变与立体阴影 */
.cb-btn-newthread {
  height: 30px; padding: 0 12px; gap: 6px; white-space: nowrap;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff; box-shadow: none;
  font-weight: 600;
}
.cb-btn-newthread:hover { color: #fff; background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.cb-btn-newthread:active { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.cb-newthread-ico { display: none; }

/* ---------- 布局 ---------- */
/* 主布局用 grid：列宽完全由容器决定。
   之前用 flex + `flex:1` 时，列宽会被子元素的固有最小宽度（长标题 / 表格 / 编辑器工具栏）
   顶开或压缩，导致不同页面内容区宽度飘忽不定。grid 的 minmax(0,1fr) 不受内容影响。 */
.cb-main {
  display: grid; gap: 16px; padding: 16px 16px 40px; align-items: start;
  /* width:100% 必须保留：body 是 flex column，.cb-main 作为带 auto 外边距的 flex 子项
     会退化为 fit-content 宽度（受内容 max-content 影响，窄内容页面整卡塌缩成 ~500px） */
  width: 100%;
  grid-template-columns: minmax(0, 1fr) 280px;
}
.cb-content { min-width: 0; }
.cb-sidebar { min-width: 0; }
.cb-main.sidebar-left { grid-template-columns: 280px minmax(0, 1fr); }
.cb-main.sidebar-left .cb-content { order: 2; }
.cb-main.sidebar-left .cb-sidebar { order: 1; }
/* 侧边栏折叠（顶栏按钮切换） */
.cb-main.sidebar-hidden { grid-template-columns: minmax(0, 1fr); }
.cb-main.sidebar-hidden .cb-sidebar { display: none; }
.cb-sidebar-toggle-btn { font-size: 14px; line-height: 1; }
.cb-sidebar-toggle-btn.off { opacity: .5; }

/* 密码框显示切换 */
.cb-input-wrap { position: relative; }
.cb-input-wrap .cb-input { padding-right: 38px; }
.cb-pwd-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: 0; cursor: pointer; font-size: 14px; line-height: 1;
  color: var(--color-text-muted); padding: 4px;
}
.cb-pwd-toggle:hover { color: var(--color-text); }

/* gateway（登录 / 注册）页面优化 */
/* 侧边栏"关于本站"面板 */
.cb-card--about { text-align: center; }
.cb-card--about .about-title { font-size: 17px; font-weight: 700; letter-spacing: .3px; }
.cb-card--about .about-text {
  margin: 8px 0 10px; font-size: 13px; line-height: 1.8; color: var(--color-text-sub);
}
.cb-card--about .about-team { font-size: 12px; color: var(--color-text-muted); }
.cb-card--about .about-foot { display: flex; padding: 10px 6px; }
.cb-card--about .about-foot > div { flex: 1; text-align: center; }
.cb-card--about .about-foot b { display: block; font-size: 15px; font-weight: 700; }
.cb-card--about .about-foot span { font-size: 11px; color: var(--color-text-muted); }

.gateway-card { padding: 28px 28px 24px; }
.gateway-card h1 { margin-bottom: 20px; font-size: 19px; }
.gateway-card .cb-form-item { margin-bottom: 14px; }
.gateway-card .cb-btn.block { margin-top: 4px; }
@media (max-width: 900px) {
  .cb-main { grid-template-columns: minmax(0, 1fr); }
  .cb-main.sidebar-left { grid-template-columns: minmax(0, 1fr); }
  .cb-main.sidebar-left .cb-content { order: 1; }
  .cb-main.sidebar-left .cb-sidebar { order: 2; }
  .cb-sidebar { width: 100%; }
}

.cb-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 16px;
}
/* 含编辑器的卡片不能裁剪 sticky 工具栏，否则长文编辑时工具栏会随页面滚走 */
.cb-card--editor { overflow: visible; }
.cb-card__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--color-border);
  font-weight: 600; font-size: 15px;
}
.cb-card__header .more { font-size: 13px; font-weight: 400; color: var(--color-text-muted); }
.cb-card__body { padding: 16px; }
.cb-card__footer { padding: 10px 16px; border-top: 1px solid var(--color-border); background: var(--color-surface-alt); }

/* ---------- 帖子列表 ---------- */
.cb-thread-list { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.cb-thread {
  display: flex; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--color-border);
  transition: background .15s;
}
.cb-thread:last-child { border-bottom: none; }
.cb-thread:hover { background: var(--color-surface-alt); }
.cb-thread__avatar { flex: none; }
.cb-thread__main { flex: 1; min-width: 0; }
.cb-thread__title { font-size: 15px; font-weight: 600; margin: 0 0 4px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.cb-thread__title a { color: var(--color-text); }
.cb-thread__title a:hover { color: var(--color-primary); }
.cb-thread__meta { font-size: 12px; color: var(--color-text-muted); display: flex; gap: 12px; flex-wrap: wrap; }
.cb-thread__excerpt { font-size: 13px; color: var(--color-text-sub); margin-top: 4px; }
.cb-thread__stat { flex: none; text-align: center; min-width: 44px; }
.cb-thread__stat b { display: block; font-size: 15px; color: var(--color-text-sub); }
.cb-thread__stat span { font-size: 11px; color: var(--color-text-muted); }

.cb-tag {
  display: inline-block; padding: 1px 8px; border-radius: var(--radius); font-size: 12px;
  background: var(--color-primary-light); color: var(--color-primary); margin-right: 4px;
}
.cb-badge-pill {
  display: inline-flex; align-items: center; padding: 0 6px; border-radius: var(--radius-sm);
  font-size: 11px; line-height: 18px; background: var(--color-border); color: var(--color-text-sub);
}
.cb-badge-pill.top { background: #fff1f0; color: var(--color-danger); }
.cb-badge-pill.essence { background: #fff7e6; color: var(--color-warning); }
.cb-badge-pill.digest { background: #f6ffed; color: var(--color-success); }
.cb-badge-pill.closed { background: var(--color-border); color: var(--color-text-muted); }

/* ---------- 板块 ---------- */
.cb-forum-cat { margin-bottom: 20px; }
.cb-forum-cat__title {
  font-size: 15px; font-weight: 600; padding: 0 0 8px; margin: 0;
  border-bottom: 2px solid var(--color-primary); display: inline-block;
}
.cb-forum-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; margin-top: 12px; }
.cb-forum-card {
  display: flex; gap: 12px; padding: 14px; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius); transition: box-shadow .15s;
}
.cb-forum-card:hover { box-shadow: var(--shadow); }
.cb-forum-card__icon {
  width: 44px; height: 44px; border-radius: var(--radius); flex: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; background: var(--color-primary);
}
.cb-forum-card__name { font-weight: 600; font-size: 15px; }
.cb-forum-card__desc { font-size: 12px; color: var(--color-text-muted); margin-top: 2px; }
.cb-forum-card__stat { font-size: 12px; color: var(--color-text-sub); margin-top: 6px; }

.cb-stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.cb-stat-item { text-align: center; padding: 10px 4px; background: var(--color-surface-alt); border-radius: var(--radius); }
.cb-stat-item b { display: block; font-size: 18px; color: var(--color-text); }
.cb-stat-item span { font-size: 12px; color: var(--color-text-muted); }

.cb-user-list { display: flex; flex-wrap: wrap; gap: 8px; }
.cb-user-list .cb-avatar { border-radius: var(--radius); }
.cb-list-item { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px dashed var(--color-border); font-size: 13px; }
.cb-list-item:last-child { border-bottom: none; }
.cb-list-item .t { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- 日历 ---------- */
.cb-calendar { user-select: none; }
.cb-calendar__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; font-size: 14px; }
.cb-calendar__grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; text-align: center; font-size: 12px; }
.cb-calendar__grid .wd { color: var(--color-text-muted); padding: 4px 0; }
.cb-calendar__grid .d { padding: 5px 0; border-radius: var(--radius-sm); color: var(--color-text-sub); }
.cb-calendar__grid .d.today { outline: 1px solid var(--color-primary); }
.cb-calendar__grid .d.checked { background: var(--color-primary); color: #fff; font-weight: 600; }
.cb-calendar__grid .d.makeup { background: var(--color-warning); color: #fff; }
.cb-calendar__grid .d.empty { visibility: hidden; }

/* ---------- 帖子详情 ---------- */
.cb-thread-detail { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.cb-thread-detail__head { padding: 20px; border-bottom: 1px solid var(--color-border); }
.cb-thread-detail__title { font-size: 22px; font-weight: 700; margin: 0 0 10px; line-height: 1.4; }
.cb-thread-detail__meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--color-text-muted); flex-wrap: wrap; }
.cb-post { display: flex; gap: 14px; padding: 18px 20px; border-bottom: 1px solid var(--color-border); }
.cb-post:last-child { border-bottom: none; }
.cb-post__side { flex: none; width: 96px; text-align: center; }
.cb-post__side .name { font-size: 13px; font-weight: 600; margin-top: 6px; word-break: break-all; }
.cb-post__side .lv { font-size: 11px; color: var(--color-text-muted); }
.cb-post__main { flex: 1; min-width: 0; }
.cb-post__head { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--color-text-muted); margin-bottom: 8px; }
/* 编辑痕迹：正文上方居中提示 */
.cb-post__edited {
  margin: 0 0 10px; padding: 5px 10px; text-align: center;
  font-size: 12px; color: var(--color-text-muted);
  background: var(--color-surface-alt); border-radius: var(--radius-sm);
}

.cb-post__author { font-size: 13px; font-weight: 600; color: var(--color-text); }
.cb-post__author:hover { color: var(--color-primary); }
.cb-post__floor {
  padding: 1px 6px; font-size: 11px; border-radius: var(--radius-sm);
  background: var(--color-surface-alt); color: var(--color-text-muted);
}
.cb-postlist__bar {
  display: flex; align-items: center; gap: 6px; padding: 12px 20px;
  border-bottom: 1px solid var(--color-border); background: var(--color-surface-alt);
  font-size: 14px; color: var(--color-text);
}
.cb-postlist__bar .muted { font-size: 13px; color: var(--color-text-muted); }
.cb-card__header #btn-reply-mode { font-weight: 400; }

.cb-post__actions { display: flex; gap: 12px; margin-top: 12px; font-size: 13px; color: var(--color-text-muted); }
.cb-post__actions button {
  border: none; background: transparent; cursor: pointer; color: var(--color-text-muted);
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 4px; border-radius: var(--radius-sm);
}
.cb-post__actions button:hover, .cb-post__actions button.on { color: var(--color-primary); }
@media (max-width: 700px) {
  .cb-post { flex-direction: column; gap: 8px; }
  .cb-post__side { width: auto; display: flex; align-items: center; gap: 8px; text-align: left; }
  .cb-post__side .name { margin: 0; }
}

/* ---------- 正文排版 ---------- */
.cb-content-html { font-size: 15px; line-height: 1.8; word-wrap: break-word; overflow-wrap: break-word; }
.cb-content-html h1, .cb-content-html h2, .cb-content-html h3,
.cb-content-html h4, .cb-content-html h5, .cb-content-html h6 { margin: 1em 0 .6em; font-weight: 600; line-height: 1.4; }
.cb-content-html h1 { font-size: 1.6em; } .cb-content-html h2 { font-size: 1.4em; }
.cb-content-html h3 { font-size: 1.25em; } .cb-content-html h4 { font-size: 1.1em; }
.cb-content-html h6, .cb-editor__area h6 { font-size: .72em; }
.cb-content-html .cb-h7, .cb-editor__area .cb-h7 { font-size: .68em; }
.cb-content-html .cb-h8, .cb-editor__area .cb-h8 { font-size: .64em; }
.cb-content-html .cb-h9, .cb-editor__area .cb-h9 { font-size: .6em; }
.cb-content-html .cb-h10, .cb-editor__area .cb-h10 { font-size: .56em; }
.cb-content-html p { margin: .6em 0; }
.cb-content-html blockquote {
  margin: .8em 0; padding: 8px 14px; border-left: 3px solid var(--color-primary);
  background: var(--color-surface-alt); color: var(--color-text-sub); border-radius: 0 var(--radius) var(--radius) 0;
}
.cb-content-html ul, .cb-content-html ol { padding-left: 1.6em; margin: .6em 0; }
.cb-content-html img { max-width: 100%; height: auto; border-radius: var(--radius); margin: 6px 0; }
.cb-content-html table { border-collapse: collapse; margin: .8em 0; width: 100%; }
.cb-content-html th, .cb-content-html td { border: 1px solid var(--color-border); padding: 8px 10px; }
.cb-content-html th { background: var(--color-surface-alt); font-weight: 600; }
.cb-content-html a.mention { color: var(--color-primary); background: var(--color-primary-light); padding: 0 4px; border-radius: var(--radius-sm); }
.cb-content-html details { margin: .8em 0; padding: 10px 14px; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface-alt); }
.cb-content-html summary { cursor: pointer; font-weight: 600; }
.cb-code, .cb-content-html pre {
  background: #1f2430; color: #e6e6e6; padding: 14px 16px; border-radius: var(--radius);
  overflow-x: auto; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px; line-height: 1.6;
}
.cb-content-html code { background: var(--color-surface-alt); padding: 1px 5px; border-radius: var(--radius-sm); font-size: 13px; }
.cb-content-html pre code { background: transparent; padding: 0; color: inherit; }
html[data-theme="dark"] .cb-code { background: #0f1216; }

/* ---------- 表单 ---------- */
.cb-form-item { margin-bottom: 16px; }
.cb-form-item > label { display: block; font-size: 13px; color: var(--color-text-sub); margin-bottom: 6px; font-weight: 500; }
.cb-input, .cb-textarea, .cb-select {
  width: 100%; padding: 8px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius); background: var(--color-surface); color: var(--color-text);
  outline: none; transition: border-color .15s; font-size: 14px;
}
.cb-input:focus, .cb-textarea:focus, .cb-select:focus { border-color: var(--color-primary); }
.cb-color-field { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cb-color-field input[type="color"] {
  width: 44px; height: 38px; padding: 2px; flex: none; cursor: pointer;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface);
}
.cb-color-field .cb-input { flex: 1; min-width: 160px; }
.cb-textarea { min-height: 90px; resize: vertical; }
.cb-form-tip { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.cb-form-error { font-size: 12px; color: var(--color-danger); margin-top: 4px; }
.cb-checkbox { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--color-text-sub); cursor: pointer; }
.cb-switch-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--color-border); }

/* ---------- 编辑器 ---------- */
.cb-editor { border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); }
.cb-editor__body { position: relative; }
/* 工具栏吸顶：长文编辑时始终可见（吸附在顶栏下方） */
.cb-editor__toolbar {
  position: sticky; top: var(--header-height); z-index: 30;
  display: flex; flex-wrap: nowrap; gap: 2px; padding: 6px; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt); align-items: center;
  overflow-x: auto; scrollbar-width: thin;
  border-radius: var(--radius) var(--radius) 0 0;
}
/* Markdown 源码输入区 */
.cb-editor__md {
  display: block; width: 100%; min-height: 280px; padding: 14px 16px; resize: vertical;
  border: 0; outline: none; background: var(--color-surface); color: var(--color-text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px; line-height: 1.75;
}
/* 富文本 / Markdown 模式切换 */
.cb-editor__modes { margin-left: auto; display: flex; gap: 2px; padding-left: 8px; flex: none; }
.cb-ed-mode {
  display: inline-flex; align-items: center; gap: 5px; height: 28px; padding: 0 10px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text-sub); font-size: 12px; cursor: pointer;
  white-space: nowrap; transition: all .15s;
}
.cb-ed-mode:hover { color: var(--color-text); border-color: var(--color-primary); }
.cb-ed-mode.on { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.cb-editor__toolbar .cb-ed-mode { width: auto; height: 28px; }
.cb-ed-sel, .cb-ed-fsel { height: 28px; max-width: 84px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font-size: 12px; }
/* 颜色按钮：马克笔符号 + 底部色条，内部隐藏原生取色 input */
.cb-ed-colorbtn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface); cursor: pointer; font-size: 13px; line-height: 1;
  user-select: none; -webkit-user-select: none; padding: 0 0 3px;
}
.cb-ed-colorbtn::after {
  content: ""; position: absolute; left: 5px; right: 5px; bottom: 3px; height: 3px;
  border-radius: 2px; background: var(--cb-ed-c, #d93026); pointer-events: none;
}
.cb-ed-colorbtn input[type=color] {
  position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; padding: 0; border: 0;
}

/* 选中文字后的浮动快捷工具条 */
.cb-ed-floatbar {
  position: absolute; z-index: 1200; display: none; align-items: center; gap: 3px;
  padding: 5px 6px; transform: translateX(-50%);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: 0 8px 24px rgba(15, 23, 42, .18);
}
.cb-ed-floatbar button {
  width: 28px; height: 28px; border: 0; background: transparent; border-radius: var(--radius-sm);
  cursor: pointer; color: var(--color-text-sub); display: inline-flex; align-items: center; justify-content: center;
}
.cb-ed-floatbar button:hover { background: var(--color-surface-alt); color: var(--color-primary); }
.cb-ed-fsep { width: 1px; height: 18px; background: var(--color-border); margin: 0 2px; flex: none; }

/* 图片调整框（选中图片后出现） */
.cb-ed-imgbox { position: absolute; z-index: 1100; outline: 2px solid var(--color-primary); }
.cb-ed-imghandle {
  position: absolute; width: 11px; height: 11px; box-sizing: border-box;
  background: var(--color-surface); border: 2px solid var(--color-primary); border-radius: 2px;
}
.cb-ed-imghandle[data-h="nw"] { left: -6px; top: -6px; cursor: nwse-resize; }
.cb-ed-imghandle[data-h="ne"] { right: -6px; top: -6px; cursor: nesw-resize; }
.cb-ed-imghandle[data-h="sw"] { left: -6px; bottom: -6px; cursor: nesw-resize; }
.cb-ed-imghandle[data-h="se"] { right: -6px; bottom: -6px; cursor: nwse-resize; }
.cb-ed-imgbar {
  position: absolute; left: 0; bottom: -40px; display: flex; align-items: center; gap: 2px;
  padding: 4px; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); box-shadow: 0 6px 18px rgba(15, 23, 42, .2); white-space: nowrap;
}
.cb-ed-imgbar button {
  min-width: 26px; height: 26px; padding: 0 6px; border: 0; background: transparent;
  border-radius: var(--radius-sm); cursor: pointer; color: var(--color-text-sub);
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px;
}
.cb-ed-imgbar button:hover { background: var(--color-surface-alt); color: var(--color-primary); }
.cb-editor__area img.is-selected { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.cb-editor__toolbar button {
  width: 30px; height: 30px; border: none; background: transparent; border-radius: var(--radius-sm);
  cursor: pointer; color: var(--color-text-sub); display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.cb-editor__toolbar button:hover { background: var(--color-border); color: var(--color-text); }
.cb-editor__toolbar .sep { width: 1px; height: 20px; background: var(--color-border); margin: 0 4px; }
.cb-editor__toolbar select { height: 28px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font-size: 12px; }
.cb-editor__toolbar input[type=color] { width: 28px; height: 28px; padding: 0; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: none; }
.cb-editor__area {
  min-height: 260px; padding: 14px 16px; outline: none; overflow-y: auto;
  font-size: 15px; line-height: 1.8;
}
.cb-editor__area:empty::before { content: attr(data-placeholder); color: var(--color-text-muted); }
.cb-editor__footer { display: flex; justify-content: space-between; padding: 6px 12px; border-top: 1px solid var(--color-border); font-size: 12px; color: var(--color-text-muted); background: var(--color-surface-alt); }
.cb-emoji-panel {
  position: absolute; z-index: 200; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; width: 280px;
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 2px;
}
.cb-emoji-panel button { border: none; background: none; font-size: 18px; cursor: pointer; padding: 4px; border-radius: var(--radius-sm); }

/* ---------- 编辑器弹窗面板（Halo 风格） ---------- */
.cb-ed-mask {
  position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center;
  background: rgba(15, 23, 42, .45); padding: 16px; animation: cbFade .15s ease;
}
@keyframes cbFade { from { opacity: 0; } to { opacity: 1; } }
.cb-ed-dialog {
  width: 100%; max-width: 520px; max-height: 90vh; display: flex; flex-direction: column;
  background: var(--color-surface); border-radius: var(--radius-lg);
  box-shadow: 0 18px 48px rgba(15, 23, 42, .22); overflow: hidden;
  animation: cbPop .18s cubic-bezier(.2, .8, .3, 1);
}
@keyframes cbPop { from { transform: translateY(8px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.cb-ed-dialog__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--color-border); font-size: 15px;
}
.cb-ed-close {
  border: 0; background: none; font-size: 20px; line-height: 1; cursor: pointer;
  color: var(--color-text-muted); padding: 0 4px;
}
.cb-ed-close:hover { color: var(--color-text); }
.cb-ed-dialog__body { padding: 18px; overflow: auto; }
.cb-ed-dialog__foot {
  display: flex; justify-content: flex-end; gap: 10px; padding: 12px 18px;
  border-top: 1px solid var(--color-border); background: var(--color-surface-alt);
}
.cb-ed-field { margin-bottom: 14px; }
.cb-ed-field label { display: block; font-size: 13px; color: var(--color-text-sub); margin-bottom: 6px; }
.cb-ed-field .cb-input { width: 100%; }
.cb-ed-field textarea.cb-input { min-height: 120px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.cb-ed-tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--color-border); }
.cb-ed-tab {
  border: 0; background: none; cursor: pointer; padding: 8px 12px; font-size: 13px;
  color: var(--color-text-sub); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.cb-ed-tab:hover { color: var(--color-text); }
.cb-ed-tab.active { color: var(--color-primary); font-weight: 600; border-bottom-color: var(--color-primary); }

.cb-ed-drop {
  border: 1px dashed var(--color-border-strong); border-radius: var(--radius);
  padding: 28px 16px; text-align: center; cursor: pointer; color: var(--color-text-sub); font-size: 13px;
  transition: border-color .15s, background .15s;
}
.cb-ed-drop:hover, .cb-ed-drop.over { border-color: var(--color-primary); background: var(--color-primary-light); }

.cb-ed-library { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-height: 260px; overflow: auto; }
.cb-ed-library__item {
  border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; padding: 0;
  background: none; cursor: pointer; aspect-ratio: 1;
}
.cb-ed-library__item:hover { border-color: var(--color-primary); }
.cb-ed-library__item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cb-ed-library__tip { grid-column: 1 / -1; text-align: center; padding: 30px 0; font-size: 13px; color: var(--color-text-muted); }

/* 附件库 */
.cb-ed-filter { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.cb-ed-drop--sm { padding: 16px 12px; margin-bottom: 12px; }
.cb-ed-files { max-height: 280px; overflow: auto; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.cb-ed-file {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px;
  border-bottom: 1px solid var(--color-border); font-size: 13px;
}
.cb-ed-file:last-child { border-bottom: none; }
.cb-ed-file:hover { background: var(--color-surface-alt); }
.cb-ed-file__ico { flex: none; font-size: 15px; }
.cb-ed-file__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cb-ed-file__size { flex: none; font-size: 12px; color: var(--color-text-muted); }
.cb-ed-file__ins { flex: none; }
@media (max-width: 640px) {
  .cb-ed-dialog { max-width: 100%; }
  .cb-ed-library { grid-template-columns: repeat(3, 1fr); }
}
.cb-emoji-panel button:hover { background: var(--color-surface-alt); }

/* ---------- 说说 ---------- */
.cb-say { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.cb-say__head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.cb-say__content { font-size: 15px; line-height: 1.8; white-space: pre-wrap; word-break: break-word; }
.cb-say__images { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 10px; }
.cb-say__images img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius-sm); cursor: zoom-in; }
.cb-say__actions { display: flex; gap: 16px; margin-top: 12px; font-size: 13px; color: var(--color-text-muted); }
.cb-say__comments { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--color-border); }
.cb-say__comment { padding: 6px 0; font-size: 13px; }
.cb-say__comment b { color: var(--color-primary); margin-right: 4px; }

/* ---------- 分页 ---------- */
.cb-pagination { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; padding: 16px 0; }
.cb-pagination .page {
  padding: 4px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text-sub); font-size: 13px;
}
.cb-pagination .page:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cb-pagination .page.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.cb-pagination .page-info { font-size: 12px; color: var(--color-text-muted); margin-left: auto; }

/* ---------- 提示 ---------- */
.cb-alert { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 14px; font-size: 14px; }
.cb-alert.success { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; }
.cb-alert.error { background: #fff1f0; border: 1px solid #ffccc7; color: #cf1322; }
.cb-alert.info { background: var(--color-primary-light); border: 1px solid #91d5ff; color: var(--color-primary-dark); }
html[data-theme="dark"] .cb-alert { background: var(--color-surface-alt); }
.cb-empty { padding: 40px 20px; text-align: center; color: var(--color-text-muted); }
.cb-empty .icon { font-size: 40px; opacity: .4; }

/* ---------- 用户主页 ---------- */
.cb-profile-header {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 24px; display: flex; gap: 20px; align-items: flex-start;
}
.cb-profile-header__info { flex: 1; min-width: 0; }
.cb-profile-header__name { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cb-profile-header__meta { font-size: 13px; color: var(--color-text-muted); margin-top: 6px; display: flex; gap: 16px; flex-wrap: wrap; }
.cb-profile-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(80px, 1fr)); gap: 10px; margin-top: 16px; }
.cb-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--color-border); margin-bottom: 16px; flex-wrap: wrap; }
.cb-tabs a { padding: 8px 14px; font-size: 14px; color: var(--color-text-sub); border-bottom: 2px solid transparent; }
.cb-tabs a.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }

/* ---------- 签到 ---------- */
.cb-checkin-hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; border-radius: var(--radius); padding: 28px; text-align: center;
}
.cb-checkin-hero h2 { margin: 0 0 6px; font-size: 20px; }
.cb-checkin-hero .btn-checkin {
  margin-top: 16px; width: 130px; height: 130px; border-radius: 50%; border: none;
  background: #fff; color: var(--color-primary); font-size: 20px; font-weight: 700; cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .15); transition: transform .15s;
}
.cb-checkin-hero .btn-checkin:hover { transform: scale(1.05); }
.cb-checkin-hero .btn-checkin:disabled { background: rgba(255, 255, 255, .85); color: var(--color-text-muted); cursor: default; }
.cb-reward-list { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 12px; }
.cb-reward-item { text-align: center; padding: 8px 2px; background: var(--color-surface-alt); border-radius: var(--radius-sm); font-size: 12px; }
.cb-reward-item b { display: block; font-size: 13px; }

/* ---------- 私信 ---------- */
.cb-pm { display: flex; height: 560px; border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: var(--color-surface); }
.cb-pm__list { width: 240px; border-right: 1px solid var(--color-border); overflow-y: auto; }
.cb-pm__item { display: flex; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--color-border); cursor: pointer; }
.cb-pm__item:hover, .cb-pm__item.active { background: var(--color-surface-alt); }
.cb-pm__body { flex: 1; display: flex; flex-direction: column; }
.cb-pm__messages { flex: 1; overflow-y: auto; padding: 16px; }
.cb-pm__msg { display: flex; gap: 10px; margin-bottom: 14px; }
.cb-pm__msg.mine { flex-direction: row-reverse; }
.cb-pm__bubble { max-width: 70%; padding: 8px 12px; border-radius: var(--radius); background: var(--color-surface-alt); }
.cb-pm__msg.mine .cb-pm__bubble { background: var(--color-primary); color: #fff; }
.cb-pm__composer { border-top: 1px solid var(--color-border); padding: 10px; display: flex; gap: 8px; }
@media (max-width: 700px) { .cb-pm { height: 480px; } .cb-pm__list { width: 90px; } }

/* ---------- 附件 ---------- */
.cb-att-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.cb-att-card { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: var(--color-surface); }
.cb-att-card__thumb { height: 100px; display: flex; align-items: center; justify-content: center; background: var(--color-surface-alt); font-size: 30px; }
.cb-att-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.cb-att-card__info { padding: 8px; font-size: 12px; }
.cb-att-card__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cb-upload-zone {
  border: 2px dashed var(--color-border-strong); border-radius: var(--radius);
  padding: 30px; text-align: center; color: var(--color-text-muted); cursor: pointer; background: var(--color-surface-alt);
}
.cb-upload-zone:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cb-upload-zone__ico { display: flex; justify-content: center; margin-bottom: 6px; }
.cb-upload-zone__ico .cb-ico { width: 28px; height: 28px; }
.cb-empty .icon svg { width: 28px; height: 28px; }
.cb-notify-ico { display: inline-flex; align-items: center; justify-content: center; margin-top: 2px; color: var(--color-text-muted); }
.cb-notify-ico svg { width: 18px; height: 18px; }

/* ---------- 通知下拉 ---------- */
.cb-dropdown { position: relative; }
.cb-dropdown__menu {
  position: absolute; right: 0; top: 38px; width: 320px; z-index: 200;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; display: none;
}
.cb-dropdown__menu.show { display: block; }
.cb-dropdown__menu .head { padding: 10px 14px; border-bottom: 1px solid var(--color-border); display: flex; justify-content: space-between; font-weight: 600; font-size: 14px; }
.cb-dropdown__menu .list { max-height: 320px; overflow-y: auto; }
.cb-dropdown__menu .item { display: flex; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--color-border); }
.cb-dropdown__menu .item:hover { background: var(--color-surface-alt); }
.cb-dropdown__menu .item .t { font-size: 13px; }
.cb-dropdown__menu .item .c { font-size: 12px; color: var(--color-text-muted); }
.cb-dropdown__menu .foot { padding: 8px; text-align: center; border-top: 1px solid var(--color-border); }
/* 顶栏语言切换下拉 */
.cb-lang-menu { width: 190px; }
.cb-lang-menu .list .item { align-items: center; gap: 8px; }
.cb-lang-menu .item:hover { background: var(--color-surface-alt); }
.cb-lang-menu .item.on { color: var(--color-primary); font-weight: 600; }
.cb-lang-menu__code {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 20px; font-size: 11px; font-weight: 700; letter-spacing: .4px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface-alt); color: var(--color-text-muted);
}
.cb-lang-menu .item.on .cb-lang-menu__code {
  color: var(--color-primary); border-color: var(--color-primary); background: transparent;
}
.cb-lang-menu__tick { flex: none; color: var(--color-primary); font-weight: 700; }

/* ---------- 底部 ---------- */
.cb-footer { background: var(--cb-footer-bg, var(--color-surface)); border-top: 1px solid var(--color-border); padding: 24px 0; color: var(--cb-footer-text, var(--color-text-muted)); font-size: 13px; }
.cb-footer__inner { max-width: 1200px; margin: 0 auto; padding: 0 16px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.cb-footer a { color: var(--cb-footer-text, var(--color-text-sub)); }
.cb-footer__github { display: inline-flex; align-items: center; gap: 4px; color: var(--cb-footer-text, var(--color-text-sub)); }
.cb-footer__github:hover { color: var(--color-text); }
.cb-footer__github .cb-ico, .cb-footer__rss .cb-ico { width: 15px; height: 15px; vertical-align: -3px; }

/* ---------- 登录 / 注册（独立全屏卡片） ---------- */
body.gateway-body { background: var(--color-bg); min-height: 100vh; }
.gateway-sub { text-align: center; font-size: 13px; color: var(--color-text-muted); margin: -12px 0 20px; }
.cb-input-icon { position: relative; }
.cb-input-icon .ico {
  position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  font-size: 14px; color: var(--color-text-muted); pointer-events: none; line-height: 1;
}
.cb-input-icon .cb-input { padding-left: 34px; }
.cb-input-icon.has-toggle .cb-input { padding-right: 38px; }
.gateway-card .cb-btn.block { height: 42px; font-size: 15px; font-weight: 600; margin-top: 6px; }
@media (max-width: 640px) {
  .gateway-wrapper { padding: 0; align-items: stretch; }
  .gateway-card {
    max-width: 100%; border: 0; border-radius: 0; box-shadow: none;
    background: transparent; padding: 24px 20px; min-height: 100vh; display: flex; flex-direction: column;
    justify-content: center;
  }
  .gateway-logo { display: none; }
}
.gateway-wrapper { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 16px; }
.gateway-logo { display: flex; justify-content: center; margin-bottom: 28px; }
.gateway-logo svg { height: 44px; }
.gateway-card {
  width: 100%; max-width: 400px; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow);
}
.gateway-card h1 { margin: 0 0 22px; font-size: 20px; text-align: center; font-weight: 600; }
.gateway-extra { margin-top: 14px; text-align: center; font-size: 13px; color: var(--color-text-muted); }
.gateway-back { margin-top: 22px; text-align: center; font-size: 13px; }

/* ---------- 主题列表卡（筛选 + 列表合并为一个面板） ---------- */
.cb-thread-list--plain { border: 0; border-radius: 0; }

/* 简洁模式：紧凑单行 */
.cb-thread-list--compact { background: transparent; }
.cb-trow {
  display: flex; align-items: center; gap: 12px; min-height: 62px;
  padding: 11px 16px; border-bottom: 1px solid var(--color-border);
  transition: background .15s;
}
.cb-trow:last-child { border-bottom: none; }
.cb-trow:hover { background: var(--color-surface-alt); }
.cb-trow__avatar { flex: none; }
.cb-trow__avatar .cb-avatar { width: 34px; height: 34px; display: block; }
.cb-trow__main { flex: 1; min-width: 0; }
.cb-trow__title {
  font-size: 15px; line-height: 20px; font-weight: 400;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--color-text);
}
.cb-trow__title a { color: var(--color-text); }
.cb-trow__title a:hover { color: var(--color-primary); }
.cb-trow__title .cb-badge-pill { margin-right: 4px; vertical-align: 1px; }
.cb-trow__meta {
  display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; overflow: hidden;
  margin-top: 5px; font-size: 11px; line-height: 13px; color: var(--color-text-muted);
  white-space: nowrap;
}
.cb-trow__meta a { color: var(--color-text-muted); max-width: 96px; overflow: hidden; text-overflow: ellipsis; }
.cb-trow__meta a:hover { color: var(--color-text); }
.cb-trow__meta .arrow { opacity: .55; }
.cb-trow__count {
  flex: none; display: inline-flex; align-items: center; gap: 4px; justify-content: flex-end;
  min-width: 34px; color: var(--color-text-muted); font-size: 12px;
}
.cb-trow__count:hover { color: var(--color-text); }
@media (max-width: 640px) {
  .cb-trow { padding: 10px 12px; gap: 10px; min-height: 56px; }
  .cb-trow__avatar { display: none; }
  .cb-trow__title { font-size: 14px; }
  .cb-trow__meta a { max-width: 72px; }
}

.cb-tabs { display: flex; gap: 2px; flex-wrap: wrap; }
.cb-tab {
  position: relative; display: inline-flex; align-items: center; height: 40px; padding: 0 14px;
  font-size: 14px; font-weight: 400; color: var(--color-text-sub); border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.cb-tab:hover { color: var(--color-text); }
.cb-tab.active { color: var(--color-primary); font-weight: 600; border-bottom-color: var(--color-primary); }

.cb-card__header--tabs { padding: 0 12px; gap: 12px; flex-wrap: wrap; font-weight: 400; }
.cb-card__header--tabs .cb-header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
@media (max-width: 640px) {
  .cb-card__header--tabs { padding: 0 8px; }
  .cb-tab { padding: 0 10px; font-size: 13px; }
}

/* ---------- 汉堡按钮（移动端） ---------- */
.cb-burger {
  display: none; flex-direction: column; justify-content: center; gap: 4px;
  width: 36px; height: 32px; padding: 0 7px; border: 0; border-radius: var(--radius-sm);
  background: transparent; cursor: pointer;
}
.cb-burger span { display: block; height: 2px; width: 100%; background: var(--color-text-sub); border-radius: 2px; transition: transform .2s, opacity .2s; }
.cb-back-btn { flex-direction: row; padding: 0; color: var(--color-text-sub); }
.cb-back-btn .cb-ico { width: 20px; height: 20px; }
.cb-header__publish { display: none; }
.cb-header.open .cb-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.cb-header.open .cb-burger span:nth-child(2) { opacity: 0; }
.cb-header.open .cb-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ==========================================================================
   板块页（Discuz 风格）
   ========================================================================== */
.cb-forum-block__head {
  position: relative; gap: 10px;
  /* 右侧给绝对定位的折叠按钮留出空间，否则「N 个板块」会和按钮重叠、
     折叠前后左右两侧的留白看起来不一致 */
  padding-right: 48px;
}
.cb-forum-block__title {
  color: var(--color-text); font-size: 15px;
  flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.cb-forum-block__head .more { flex: none; margin-left: auto; }
.cb-forum-block__title:hover { color: var(--color-primary); }
.cb-forum-toggle {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; line-height: 1; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: var(--color-surface-alt);
  color: var(--color-text-sub); cursor: pointer; font-size: 14px;
}
.cb-forum-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cb-forum-block__body { padding: 0; }
.cb-forum-block__body.is-collapsed { display: none; }
.cb-forum-block.is-collapsed .cb-forum-block__head { border-bottom: none; }

/* 板块页顶部聚合（4 个格子：最新 / 回复 / 精华 / 公告等） */
.cb-spotlight {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px; margin-bottom: 16px;
}
.cb-spotlight__cell {
  min-width: 0; padding: 12px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.cb-spotlight__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-bottom: 6px;
  font-size: 14px; font-weight: 600; color: var(--color-text);
}
.cb-spotlight__head a { font-size: 12px; font-weight: 400; color: var(--color-text-muted); }
.cb-spotlight__head a:hover { color: var(--color-primary); }
.cb-spotlight ul { list-style: none; margin: 0; padding: 0; }
.cb-spotlight li {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 0; font-size: 13px;
  border-bottom: 1px dashed var(--color-border);
}
.cb-spotlight li:last-child { border-bottom: none; }
.cb-spotlight li a {
  flex: 1; min-width: 0; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
  color: var(--color-text-sub);
}
.cb-spotlight li a:hover { color: var(--color-primary); }
.cb-spotlight li time { flex: none; font-size: 11px; color: var(--color-text-muted); }
.cb-spotlight li.empty { justify-content: center; color: var(--color-text-muted); }

/* 列表布局 */
.cb-forum-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.cb-forum-table tr { border-bottom: 1px solid var(--color-border); }
.cb-forum-table tr:last-child { border-bottom: none; }
.cb-forum-table tr:hover { background: var(--color-surface-alt); }
.cb-forum-table td { padding: 12px 14px; vertical-align: middle; }
.cb-forum-table .fl_ct h2 { margin: 0 0 4px; font-size: 15px; font-weight: 600; }
.cb-forum-table .fl_ct h2 a { color: var(--color-text); }
.cb-forum-table .fl_ct h2 a:hover { color: var(--color-primary); }
.cb-forum-table .fl_desc { margin: 0; font-size: 12px; color: var(--color-text-sub); line-height: 1.6; }
.cb-forum-table .fl_mod { margin: 4px 0 0; font-size: 12px; color: var(--color-text-muted); }
.cb-forum-table .fl_i { width: 90px; text-align: center; white-space: nowrap; }
.cb-forum-table .fl_num { color: var(--color-text); font-weight: 600; }
.cb-forum-table .fl_sub { color: var(--color-text-muted); font-size: 12px; }
.cb-forum-table .fl_today { margin-top: 3px; font-size: 11px; color: var(--color-success); }
.cb-forum-table .fl_by { width: 240px; font-size: 12px; color: var(--color-text-sub); }
.cb-forum-table .fl_by a { color: var(--color-text-sub); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cb-forum-table .fl_by a:hover { color: var(--color-primary); }
.cb-forum-table .fl_by cite { display: block; margin-top: 3px; font-style: normal; color: var(--color-text-muted); font-size: 11px; }

/* 子板块（无限层级缩进） */
.cb-forum-table .fl_sub .fl_ct { padding-left: 24px; }
.cb-forum-table .fl_sub-2 .fl_ct { padding-left: 40px; }
.cb-forum-table .fl_sub-3 .fl_ct { padding-left: 56px; }
.cb-forum-table .fl_sub .fl_ct h2 { font-size: 14px; font-weight: 500; }
.cb-forum-table .fl_sub_mark { color: var(--color-text-muted); margin-right: 4px; font-size: 12px; }

/* 网格布局 */
.cb-forum-grid {
  display: grid; grid-template-columns: repeat(var(--cols, 4), minmax(0, 1fr));
  gap: 1px; background: var(--color-border);
}
.cb-forum-cell { display: flex; gap: 10px; padding: 14px 12px; background: var(--color-surface); }
.cb-forum-cell:hover { background: var(--color-surface-alt); }
.cb-forum-cell dl { margin: 0; min-width: 0; }
.cb-forum-cell dt { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.cb-forum-cell dt a { color: var(--color-text); }
.cb-forum-cell dt a:hover { color: var(--color-primary); }
.cb-forum-cell dd { margin: 0; font-size: 12px; color: var(--color-text-sub); }
.cb-forum-cell dd em { font-style: normal; color: var(--color-text-muted); }
.cb-forum-cell__last { margin-top: 3px; font-size: 11px; }
.cb-forum-cell__last a { color: var(--color-text-muted); }
.cb-forum-cell__last a:hover { color: var(--color-primary); }

/* 帖子状态图标（vBulletin 风格） */
.cb-thread__avatar { display: flex; align-items: center; }

/* 帖子操作按钮：移动端底部“更多”面板 */
.cb-thread-actions__sheet-head,
.cb-thread-actions__more,
.cb-thread-actions__reply,
.cb-sheet-mask { display: none; }

/* ---------- 通用工具 ---------- */
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; }
.text-muted { color: var(--color-text-muted); } .text-sm { font-size: 13px; } .text-xs { font-size: 12px; }
.text-danger { color: var(--color-danger); } .text-success { color: var(--color-success); }
.hide { display: none !important; }
.nowrap { white-space: nowrap; }

/* ==========================================================================
   移动端适配（≤860px）
   ========================================================================== */
/* ==========================================================================
   移动端适配（≤860px）—— Flarum 风格左侧抽屉
   ========================================================================== */
@media (max-width: 860px) {
  .cb-header__inner { flex-wrap: nowrap; padding: 0 12px; gap: 8px; }
  /* 汉堡按钮在左，Logo 居中偏左（与 Flarum App-backControl 一致） */
  .cb-burger { display: flex; order: 1; }
  .cb-logo { order: 2; min-width: 0; }
  .cb-logo__text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  /* 抽屉本体：从左侧滑出，背景不透明 */
  .cb-header__main {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 300;
    width: 82%; max-width: 320px; margin: 0; padding: 0 0 18px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    box-shadow: 4px 0 18px rgba(15, 23, 42, .18);
    overflow-y: auto; -webkit-overflow-scrolling: touch;
    transform: translateX(-102%);
    transition: transform .26s cubic-bezier(.4, 0, .2, 1);
    visibility: hidden;
  }
  .cb-header.open .cb-header__main { transform: none; visibility: visible; }

  /* 遮罩层级低于顶栏（顶栏 z-index:100，抽屉在其内部），这样抽屉与汉堡按钮始终可点 */
  .cb-drawer-mask {
    display: block; position: fixed; inset: 0; z-index: 90;
    background: rgba(15, 23, 42, .42);
    opacity: 0; visibility: hidden; transition: opacity .26s;
  }
  .cb-header.open ~ .cb-drawer-mask { opacity: 1; visibility: visible; }

  /* 抽屉顶部标题栏（站点名 + 右侧关闭按钮） */
  .cb-drawer__head {
    display: flex; align-items: center; justify-content: space-between;
    height: var(--header-height); padding: 0 12px 0 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-alt);
  }
  .cb-drawer__title { font-size: 15px; font-weight: 700; }
  .cb-drawer__close {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); background: var(--color-surface);
    color: var(--color-text-sub); cursor: pointer;
  }
  .cb-drawer__close:hover { color: var(--color-danger); border-color: var(--color-danger); }

  .cb-nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    flex: none; order: 2; padding: 6px 0 4px; overflow: visible;
    border-bottom: 1px solid var(--color-border);
  }
  .cb-nav a { padding: 13px 16px; border-bottom: 1px solid var(--color-border); font-size: 15px; border-radius: 0; }
  .cb-nav a:last-child { border-bottom: none; }
  .cb-nav a:hover { background: var(--color-surface-alt); }

  .cb-header__right {
    order: 3; display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
    padding: 14px 16px 0; width: 100%;
  }
  .cb-header__right .cb-search { width: 100%; justify-content: flex-start; }
  .cb-header__right .cb-search input { width: 100%; }
  .cb-header__right .cb-search input:focus { width: 100%; }
  .cb-header__right .cb-dropdown { position: static; }
  .cb-header__right .cb-dropdown__menu { top: 44px; right: auto; left: 16px; }
  .cb-btn-newthread { flex: 1; justify-content: center; }

  .cb-main { gap: 0; padding-top: 12px; }
  .cb-sidebar { margin-top: 16px; }
  .cb-thread-detail__title { font-size: 19px; }
  .cb-thread-detail__head { padding: 16px 14px; }
  .cb-post { padding: 14px; }
  .cb-content-html { font-size: 15px; }
  .cb-editor__toolbar { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .cb-card__header--tabs { padding: 0 6px; }
  .cb-tabs {
    overflow-x: auto; overflow-y: hidden; flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch; touch-action: pan-x;
    scrollbar-width: none;
  }
  .cb-tabs::-webkit-scrollbar { display: none; }
  .cb-tab { white-space: nowrap; }
  .cb-spotlight { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .cb-spotlight__cell { padding: 10px 12px; }
  .cb-spotlight li { font-size: 12px; }

  /* 移动端帖子列表：固定高度，标题 / 预览各一行，长内容不会把列表撑高 */
  .cb-thread { height: 100px; overflow: hidden; align-items: center; }
  .cb-thread__main { min-width: 0; }
  .cb-thread__title { flex-wrap: nowrap; overflow: hidden; margin-bottom: 2px; }
  .cb-thread__title a {
    flex: 0 1 auto; min-width: 0; overflow: hidden;
    text-overflow: ellipsis; white-space: nowrap;
  }
  .cb-thread__tags { display: none; }
  .cb-thread__excerpt {
    margin-top: 2px; overflow: hidden;
    text-overflow: ellipsis; white-space: nowrap;
  }
  .cb-thread__meta { flex-wrap: nowrap; overflow: hidden; white-space: nowrap; gap: 8px; }
  .cb-thread__last { display: none; }
  .cb-thread__stat { min-width: 34px; }

  /* 移动端板块表：隐藏最后回复列，保留帖子数，标题和简介横向铺开 */
  .cb-forum-table .fl_by { display: none; }
  .cb-forum-table .fl_i { width: 64px; text-align: right; font-size: 11px; }
  .cb-forum-table td { padding: 10px 8px; }
  .cb-forum-table .fl_ct { width: auto; }
  .cb-forum-table .fl_ct h2 { font-size: 14px; margin-bottom: 2px; }
  .cb-forum-table .fl_desc { font-size: 12px; }

  /* 移动端个人页：资料行压缩成一行，数据固定七列单行 */
  .cb-profile-header { padding: 16px; gap: 14px; }
  .cb-profile-header .cb-avatar-lg { width: 60px; height: 60px; }
  .cb-profile-header__meta {
    flex-wrap: nowrap; gap: 6px; font-size: 11px;
    white-space: nowrap; overflow: hidden;
  }
  .cb-profile-header__meta span:first-child { display: none; }
  .cb-profile-header__meta span { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
  .cb-profile-stats { grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; }

  /* 移动端发帖入口移到顶栏右上角；卡片头部的按钮隐藏，让筛选栏独占一行 */
  .cb-newthread--action { display: none; }
  .cb-header__publish {
    display: inline-flex; order: 3; margin-left: auto;
    align-items: center; justify-content: center;
    width: 36px; height: 32px; border-radius: var(--radius-sm);
    color: var(--color-text-sub);
  }
  .cb-header__publish:hover { background: var(--color-surface-alt); color: var(--color-primary); }
  .cb-header__publish .cb-ico { width: 20px; height: 20px; }

  /* 移动端帖子操作：只留点赞 / 回复 / 更多，其余收进底部面板 */
  .cb-thread-actions { gap: 8px; }
  .cb-thread-actions > .cb-btn { height: 34px; padding: 0 12px; font-size: 13px; }
  .cb-thread-actions > :not(.cb-thread-actions__like):not(.cb-thread-actions__reply):not(.cb-thread-actions__more) { display: none; }
  .cb-thread-actions__reply, .cb-thread-actions__more { display: inline-flex; }
  @keyframes cb-sheet-in { from { transform: translateY(100%); } to { transform: none; } }
  .cb-thread-actions.is-open {
    animation: cb-sheet-in .22s ease-out;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 510;
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px;
    max-height: 76vh; overflow-y: auto;
    padding: 14px 16px calc(16px + env(safe-area-inset-bottom));
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-radius: 0;
    box-shadow: 0 -10px 30px rgba(15, 23, 42, .18);
  }
  .cb-thread-actions.is-open > .cb-btn { display: inline-flex !important; width: 100%; height: 42px; justify-content: center; }
  .cb-thread-actions.is-open > .cb-thread-actions__more { display: none !important; }
  .cb-thread-actions.is-open .cb-thread-actions__sheet-head {
    display: flex !important; grid-column: 1 / -1; align-items: center; justify-content: space-between;
    margin-bottom: 2px; font-size: 14px; font-weight: 600; color: var(--color-text);
  }
  .cb-thread-actions__close { padding: 6px; border: 0; background: none; color: var(--color-text-muted); font-size: 13px; cursor: pointer; }
  .cb-sheet-mask {
    display: block; position: fixed; inset: 0; z-index: 500;
    background: rgba(15, 23, 42, .42);
    opacity: 0; visibility: hidden; transition: opacity .2s;
  }
  .cb-sheet-mask.is-open { opacity: 1; visibility: visible; }
  body.cb-sheet-open { overflow: hidden; }

  .cb-footer__inner { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 10px; }
  .cb-main { padding: 12px 0 24px; }
  .cb-spotlight { padding: 0 10px; }
  .cb-content > .cb-card { border-left: 0; border-right: 0; border-radius: 0; }
  .cb-thread-list { border-radius: 0; }
  .cb-thread { padding: 12px; gap: 10px; }
  .cb-avatar-md { width: 34px; height: 34px; }
  .cb-thread__title { font-size: 14px; }
  .cb-profile-stats { grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
  .cb-profile-stats .cb-stat-item { padding: 6px 1px; }
  .cb-profile-stats .cb-stat-item b { font-size: 14px; }
  .cb-profile-stats .cb-stat-item span { font-size: 10px; }
  .cb-pagination { justify-content: center; }
}

/* ==========================================================================
   楼中楼回复（楼层下的子回复 + 展开更多）
   ========================================================================== */
.cb-subposts {
  margin-top: 10px; padding: 6px 12px 8px;
  border-left: 2px solid var(--color-border-strong);
  background: var(--color-surface-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.cb-subpost { padding: 7px 0; border-bottom: 1px dashed var(--color-border); font-size: 13px; }
.cb-subpost:last-of-type { border-bottom: none; }
.cb-subpost__user { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--color-text); }
.cb-subpost__user:hover { color: var(--color-primary); }
.cb-subpost__meta { margin-left: 8px; font-size: 12px; color: var(--color-text-muted); }
.cb-subpost__body { font-size: 14px; margin-top: 2px; }
.cb-subpost__body img { max-width: 240px; }
.cb-subposts__more {
  margin-top: 6px; padding: 2px 0; border: 0; background: none;
  color: var(--color-primary); cursor: pointer; font-size: 13px;
}
.cb-subposts__more:hover { text-decoration: underline; }

/* ==========================================================================
   附件（非图片）渲染为下载卡片
   ========================================================================== */
a.cb-attachment, .cb-content-html a.cb-attachment {
  display: inline-flex; align-items: center; gap: 6px; margin: 4px 0;
  padding: 6px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: var(--color-surface-alt);
  color: var(--color-text-sub); font-size: 13px; text-decoration: none;
}
a.cb-attachment:hover { border-color: var(--color-primary); color: var(--color-primary); }
a.cb-attachment .cb-ico { width: 15px; height: 15px; }

/* 编辑器「作为背景图」区块 */
.cb-bg-figure { color: #fff; text-shadow: 0 1px 4px rgba(0, 0, 0, .45); }
.cb-bg-figure a { color: #fff; text-decoration: underline; }

/* Markdown 预览弹窗 */
.cb-md-preview { max-height: 60vh; overflow: auto; padding: 4px 2px; }

/* 后台：图片上传字段（地址 + 本地文件） */
.adm-input-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.adm-input-group .adm-input { flex: 1 1 220px; }
.adm-input-file { flex: 0 1 240px !important; padding: 5px !important; font-size: 12px; }

/* ===================== 授权证书页 ===================== */
.cb-license { max-width: 720px; margin: 40px auto; padding: 0 16px; text-align: center; }
.cb-license__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px 28px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .04);
}
.cb-license__logo {
  display: flex; align-items: center; justify-content: center; gap: 8px; margin-bottom: 22px;
}
.cb-license__brand { font-size: 20px; font-weight: 700; color: var(--color-text); }
.cb-license__ver { font-size: 12px; color: var(--color-text-muted); }
.cb-license__title {
  font-size: 26px; font-weight: 700; letter-spacing: 6px; margin: 0 0 22px;
  color: var(--color-text);
}
.cb-license__content { text-align: left; font-size: 14px; line-height: 2; color: var(--color-text-sub); }
.cb-license__content p { margin: 0 0 12px; }
.cb-license__content a { color: var(--color-link); }
.cb-license__grant {
  padding: 14px 16px; background: var(--color-bg-sub);
  border-left: 3px solid var(--color-primary); border-radius: var(--radius-sm);
}
.cb-license__host { font-weight: 700; color: var(--color-text); }
.cb-license__free { color: #d93026; font-weight: 700; }
.cb-license__meta {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin: 24px 0 18px; padding: 14px 0;
  border-top: 1px dashed var(--color-border); border-bottom: 1px dashed var(--color-border);
}
.cb-license__meta > div { flex: 1 1 120px; display: flex; flex-direction: column; gap: 4px; }
.cb-license__meta span { font-size: 12px; color: var(--color-text-muted); }
.cb-license__meta strong { font-size: 14px; color: var(--color-text); }
.cb-license__footer { font-size: 13px; color: var(--color-text-muted); }
.cb-license__lang { margin-top: 18px; font-size: 13px; color: var(--color-text-muted); }
.cb-license__lang a { color: var(--color-text-muted); margin: 0 8px; }
.cb-license__lang a.on { color: var(--color-primary); font-weight: 600; }
.cb-license__back { margin-top: 10px; font-size: 13px; }
.cb-footer__meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.cb-footer__license { display: inline-flex; align-items: center; gap: 3px; }

/* ===================== 注册协议 ===================== */
.cb-agree { align-items: flex-start; line-height: 1.6; }
.cb-agree input { margin-top: 3px; }
.cb-agree__link { color: var(--color-link); }
.cb-agree__box {
  margin-top: 8px; max-height: 220px; overflow: auto;
  padding: 12px 14px; font-size: 13px; line-height: 1.8; color: var(--color-text-sub);
  background: var(--color-bg-sub); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.cb-agree__box h1, .cb-agree__box h2, .cb-agree__box h3 { font-size: 14px; margin: 10px 0 6px; }
.cb-agree__box p { margin: 0 0 8px; }
.cb-agree__box ol, .cb-agree__box ul { margin: 0 0 8px; padding-left: 22px; }

/* ===================== 违禁词提示 ===================== */
.cb-ed-forbidden {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
  margin-top: 8px; padding: 8px 12px;
  font-size: 13px; line-height: 1.7;
  color: #a4262c;
  background: #fff2f0;
  border: 1px solid #ffccc7; border-radius: var(--radius-sm);
}
.cb-ed-forbidden.hide { display: none; }
.cb-ed-forbidden__ico {
  flex: 0 0 16px; width: 16px; height: 16px; line-height: 16px; text-align: center;
  font-weight: 700; color: #fff; background: #cf1322; border-radius: 50%; font-size: 12px;
}
.cb-ed-forbidden__word {
  padding: 1px 6px; border-radius: 3px;
  background: #ffe58f; color: #a4262c;
  font-weight: 600; text-decoration: underline wavy #cf1322;
}
html[data-theme="dark"] .cb-ed-forbidden { background: #3a1a1c; border-color: #6b2a2e; color: #ff9c9c; }
html[data-theme="dark"] .cb-ed-forbidden__word { background: #5c3a00; color: #ffd98f; }

/* ===================== 帖子目录面板 ===================== */
.cb-toc__toggle {
  float: right; margin: -2px -4px 0 0; width: 22px; height: 22px; line-height: 1;
  font-size: 15px; color: var(--color-text-muted);
  background: transparent; border: none; cursor: pointer; border-radius: var(--radius-sm);
}
.cb-toc__toggle:hover { background: var(--color-bg-sub); color: var(--color-text); }
.cb-toc.folded .cb-toc__list { display: none; }
.cb-toc__list {
  max-height: 60vh; overflow: auto;
  border-left: 2px solid var(--color-border);
}
.cb-toc__item {
  display: block; padding: 6px 10px;
  font-size: 13px; line-height: 1.5; color: var(--color-text-sub);
  border-left: 2px solid transparent; margin-left: -2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cb-toc__item:hover { color: var(--color-primary); background: var(--color-bg-sub); }
.cb-toc__item.lv3 { padding-left: 22px; font-size: 12.5px; }
.cb-toc__item.lv4 { padding-left: 34px; font-size: 12px; }
.cb-toc__item.on {
  color: var(--color-primary); font-weight: 600;
  border-left-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* iPad 横屏（1024 - 1200px）：内容区与侧栏宽度保持稳定，避免面板忽宽忽窄 */
@media (min-width: 901px) and (max-width: 1200px) {
  .cb-main { grid-template-columns: minmax(0, 1fr) 250px; }
  .cb-main.sidebar-left { grid-template-columns: 250px minmax(0, 1fr); }
}

/* ===================== 聊天（单聊 / 群聊 / 附近的人） ===================== */
.cb-chat {
  display: grid;
  /* 左窄右宽：左侧会话 / 群列表，右侧消息内容（QQ / 微信的布局比例） */
  grid-template-columns: 260px minmax(0, 1fr);
  height: min(74vh, 680px);
  min-height: 420px;
}
.cb-chat__side {
  display: flex; flex-direction: column; min-width: 0;
  border-right: 1px solid var(--color-border); background: var(--color-bg-sub);
}
.cb-chat__tabs { display: flex; border-bottom: 1px solid var(--color-border); flex: none; }
.cb-chat__tab2 {
  flex: 1; padding: 10px 0; font-size: 13px; cursor: pointer;
  border: none; background: transparent; color: var(--color-text-sub);
  border-bottom: 2px solid transparent;
}
.cb-chat__tab2:hover { color: var(--color-primary); }
.cb-chat__tab2.on { color: var(--color-primary); font-weight: 600; border-bottom-color: var(--color-primary); }
.cb-chat__pane { display: none; flex: 1; overflow-y: auto; }
.cb-chat__pane.on { display: block; }
.cb-chat__item {
  display: flex; align-items: center; gap: 8px; padding: 10px 12px;
  border-bottom: 1px solid var(--color-border); cursor: pointer; color: var(--color-text);
}
.cb-chat__item:hover { background: var(--color-surface-alt); }
.cb-chat__item.active { background: var(--color-primary-light); }
.cb-chat__item-main { flex: 1; min-width: 0; }
.cb-chat__item-name { font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cb-chat__item-last { font-size: 12px; color: var(--color-text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cb-chat__avatar-group {
  flex: none; width: 32px; height: 32px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary); color: #fff; font-weight: 600; font-size: 14px;
}
.cb-chat__subtitle {
  padding: 8px 12px; font-size: 12px; color: var(--color-text-muted);
  background: var(--color-surface-alt); border-bottom: 1px solid var(--color-border);
}
.cb-chat__lan-tip {
  padding: 10px 12px; font-size: 12px; color: var(--color-text-sub);
  background: var(--color-surface-alt); border-bottom: 1px solid var(--color-border); line-height: 1.7;
}

.cb-chat__main { display: flex; flex-direction: column; min-width: 0; }
.cb-chat__head {
  flex: none; display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 10px 16px; border-bottom: 1px solid var(--color-border);
}
.cb-chat__head-actions { display: flex; gap: 6px; }
.cb-chat__notice {
  flex: none; padding: 8px 16px; font-size: 12px; color: var(--color-text-muted);
  background: var(--color-bg-sub); border-bottom: 1px solid var(--color-border);
}
.cb-chat__messages { flex: 1; overflow-y: auto; padding: 16px; background: var(--color-bg); }
.cb-chat__msg { display: flex; gap: 10px; margin-bottom: 14px; align-items: flex-start; }
.cb-chat__msg.mine { flex-direction: row-reverse; }
.cb-chat__bubble-wrap { max-width: 72%; min-width: 0; }
.cb-chat__msg.mine .cb-chat__bubble-wrap { text-align: right; }
.cb-chat__msg-name { font-size: 12px; color: var(--color-text-muted); margin-bottom: 4px; }
.cb-chat__bubble {
  display: inline-block; padding: 8px 12px; border-radius: var(--radius);
  background: var(--color-surface); border: 1px solid var(--color-border);
  word-break: break-word; text-align: left; line-height: 1.7; font-size: 14px;
}
.cb-chat__msg.mine .cb-chat__bubble { background: var(--color-primary); color: #fff; border-color: transparent; }
.cb-chat__composer {
  flex: none; display: flex; gap: 8px; padding: 10px 12px;
  border-top: 1px solid var(--color-border); background: var(--color-surface);
}
.cb-chat__composer .cb-input { flex: 1; }
.cb-chat__seg { display: inline-flex; gap: 4px; }
.cb-chat__tab {
  padding: 3px 10px; border-radius: var(--radius-sm); font-size: 13px;
  color: var(--color-text-sub); font-weight: 400;
}
.cb-chat__tab:hover { background: var(--color-bg-sub); color: var(--color-primary); }
.cb-chat__tab.on { background: var(--color-primary-light); color: var(--color-primary); font-weight: 600; }
.cb-chat__switch { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 400; color: var(--color-text-sub); cursor: pointer; }

@media (max-width: 900px) {
  .cb-chat { grid-template-columns: minmax(0, 1fr); height: auto; }
  .cb-chat__side { border-right: none; border-bottom: 1px solid var(--color-border); max-height: 260px; }
  .cb-chat__messages { min-height: 300px; }
}

/* 通用占位：把后续元素推到右侧（聊天页头部等用到） */
.spacer { flex: 1 1 auto; }

/* ===================== 文件上传入口 ===================== */
input[type="file"] {
  max-width: 100%;
  padding: 6px;
  font-size: 12px;
  color: var(--color-text-muted);
  background: var(--color-surface-alt);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius);
  cursor: pointer;
}
input[type="file"]::file-selector-button {
  height: 32px;
  margin-right: 10px;
  padding: 0 12px 0 34px;
  color: #fff;
  font-size: 12px; font-weight: 600; line-height: 32px; font-family: inherit;
  background-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 16V4'/%3E%3Cpath d='m7 9 5-5 5 5'/%3E%3Cpath d='M4 16v4h16v-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 10px center;
  background-size: 16px 16px;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
input[type="file"]::file-selector-button:hover { filter: brightness(.94); }

/* ===================== 头像外链 ===================== */
.cb-avatar-url { margin-top: 20px; max-width: 560px; }
.cb-avatar-url > label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 500; color: var(--color-text-sub); }
.cb-avatar-url__row { display: flex; gap: 8px; }
.cb-avatar-url__row .cb-input { flex: 1; min-width: 0; }

/* ===================== 个人主页留言板 ===================== */
.cb-guestbook-toggle { margin-left: auto; }
.cb-guestbook-toggle .cb-checkbox { font-size: 12px; color: var(--color-text-muted); }
.cb-guestbook-form { margin-bottom: 14px; }
.cb-guestbook-form .cb-textarea { min-height: 74px; }
.cb-guestbook-list { border-top: 1px solid var(--color-border); }
.cb-guestbook-item { display: flex; gap: 10px; padding: 12px 0; border-bottom: 1px dashed var(--color-border); }
.cb-guestbook-item:last-child { border-bottom: 0; }
.cb-guestbook-item__main { flex: 1; min-width: 0; }
.cb-guestbook-item__meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12px; color: var(--color-text-muted); }
.cb-guestbook-item__meta a { color: var(--color-primary); font-weight: 600; }
.cb-guestbook-item__content { margin-top: 4px; font-size: 14px; line-height: 1.7; color: var(--color-text-sub); word-break: break-word; }
.cb-link-danger { padding: 0; border: 0; background: none; color: var(--color-danger); font-size: 12px; cursor: pointer; }

@media (max-width: 480px) {
  .cb-avatar-url__row { flex-wrap: wrap; }
  .cb-avatar-url__row .cb-btn { width: 100%; }
  .cb-guestbook-item { padding: 10px 0; }
}

/* ===================== 岛屿布局（左侧菜单 + 内容区） =====================
   布局方向参考 OpenIsle（MIT License，https://github.com/nagisa77/OpenIsle）。
   本文件样式为 ChatBBS 独立实现，详见 THIRD_PARTY_NOTICES.md。 */
/* 全宽应用壳：左侧菜单贴住顶栏、左边缘和视口底部，右侧内容紧邻，不留外层缝隙 */
.cb-island .cb-header__inner,
.cb-island .cb-footer__inner {
  max-width: none;
  padding-left: 24px;
  padding-right: 24px;
}
.cb-main--island {
  position: relative;
  display: grid;
  grid-template-columns: var(--island-nav-width, 240px) minmax(0, 1fr);
  grid-template-areas: "nav content";
  gap: 0;
  width: 100%;
  max-width: none;
  min-height: calc(100vh - var(--header-height));
  margin: 0;
  padding: 0;
  align-items: stretch;
  background: linear-gradient(to right, var(--color-surface), var(--color-surface) var(--island-nav-width, 240px), var(--color-bg) var(--island-nav-width, 240px));
}
.cb-main--island .cb-content {
  grid-area: content;
  min-width: 0;
  padding: 20px 24px 40px;
  background: var(--color-surface);
}
/* 内容区内部不再画成一叠圆角卡片，避免和左侧栏形成一块块的缝隙感 */
.cb-main--island .cb-content > .cb-card,
.cb-main--island .cb-content > .cb-thread-detail {
  margin-bottom: 18px;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.cb-main--island .cb-content > .cb-card:last-child,
.cb-main--island .cb-content > .cb-thread-detail:last-child { margin-bottom: 0; }
.cb-main--island .cb-content > .cb-spotlight { padding: 20px 24px 0; }
.cb-main--island .cb-sidebar { display: none; }

.cb-island-nav {
  grid-area: nav;
  color: var(--cb-island-text, var(--color-text));
  position: sticky;
  top: var(--header-height);
  align-self: start;
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 16px 14px 24px;
  background: var(--cb-island-bg, var(--color-surface));
  border: 0;
  border-radius: 0;
  scrollbar-width: thin;
}
.cb-island-nav__tools {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 6px;
  padding: 0 4px 10px;
  background: var(--cb-island-bg, var(--color-surface));
  border-bottom: 1px solid var(--color-border);
}
.cb-island-nav__title {
  flex: 1;
  color: var(--color-text-muted);
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
}
.cb-island-tool {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-sub);
  cursor: pointer;
}
.cb-island-tool:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-island-tool .cb-ico { width: 16px; height: 16px; }
.cb-island-nav__inner { display: flex; flex-direction: column; gap: 2px; }
.cb-island-nav .cb-island-group__title,
.cb-island-nav .cb-island-link,
.cb-island-nav .cb-island-forum-parent,
.cb-island-nav__title { color: var(--cb-island-text, var(--color-text)); }
.cb-island-nav .cb-island-link { opacity: .82; }
.cb-island-nav .cb-island-link.active { color: var(--color-primary); opacity: 1; }
.cb-island-group { padding: 8px 0; border-bottom: 1px solid var(--color-border); }
.cb-island-group:first-child { padding-top: 0; }
.cb-island-group:last-child { padding-bottom: 0; border-bottom: 0; }
.cb-island-group__title {
  display: flex; align-items: center; gap: 7px;
  padding: 0 8px 6px;
  color: var(--color-text-muted);
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
}
.cb-island-group__title .cb-ico { width: 15px; height: 15px; }
.cb-island-link {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-sub);
  font-size: 14px; line-height: 1.35;
}
.cb-island-link:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-island-link.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: 600; }
.cb-island-link .cb-ico { width: 16px; height: 16px; flex: none; opacity: .8; }
.cb-island-forum-parent {
  padding: 8px 10px 3px;
  color: var(--color-text-muted);
  font-size: 11px; font-weight: 600;
}
.cb-island-forum-link--child { padding-left: 22px; font-size: 13px; }
.cb-island-forum-dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.cb-island-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 2px 4px; }
.cb-island-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  background: color-mix(in srgb, var(--tag-color) 12%, transparent);
  color: var(--tag-color);
  font-size: 12px; line-height: 1.2;
}
.cb-island-tag em { font-style: normal; opacity: .65; font-size: 10px; }
.cb-island-tag.active { box-shadow: 0 0 0 1px var(--tag-color) inset; }
.cb-island-empty { padding: 6px 10px; color: var(--color-text-muted); font-size: 12px; }
.cb-island-divider { margin: 6px 0; border: 0; border-top: 1px solid var(--color-border); }

.cb-main--island.island-side-right {
  grid-template-columns: minmax(0, 1fr) var(--island-nav-width, 240px);
  grid-template-areas: "content nav";
  background: linear-gradient(to left, var(--color-surface), var(--color-surface) var(--island-nav-width, 240px), var(--color-bg) var(--island-nav-width, 240px));
}
.cb-main--island.island-side-right .cb-island-resizer {
  left: auto;
  right: var(--island-nav-width, 240px);
}
.cb-main--island.island-nav-hidden {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "content";
  background: var(--color-surface);
}
.cb-main--island.island-nav-hidden .cb-island-nav,
.cb-main--island.island-nav-hidden .cb-island-resizer { display: none; }

.cb-island-resizer {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--island-nav-width, 240px);
  width: 12px;
  transform: translateX(-50%);
  z-index: 6;
  cursor: col-resize;
  touch-action: none;
}
.cb-island-resizer::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  background: var(--color-border);
}
.cb-island-resizer:hover::before,
body.island-resizing .cb-island-resizer::before { width: 2px; background: var(--color-primary); }
body.island-resizing { user-select: none; cursor: col-resize; }

/* 帖子页顶部筛选条：贴住内容区的顶边和左右边 */
.cb-island-tabs {
  margin: -20px -24px 20px;
  padding: 0 24px;
  overflow-x: auto;
  background: var(--color-surface);
  border: 0;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  scrollbar-width: none;
}
.cb-island-tabs::-webkit-scrollbar { display: none; }
.cb-island-tabs .cb-tabs { flex-wrap: nowrap; }
.cb-island-tabs .cb-tab { white-space: nowrap; }

@media (max-width: 860px) {
  .cb-main--island,
  .cb-main--island.island-side-right {
    grid-template-columns: 1fr;
    grid-template-areas: "nav" "content";
    min-height: 0;
    background: var(--color-bg);
  }
  .cb-island-nav {
    position: static;
    height: auto;
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px;
  }
  .cb-island-nav__tools { position: static; }
  .cb-island-nav [data-island-side],
  #island-nav-side { display: none; }
  .cb-island-resizer { display: none; }
  .cb-main--island.island-nav-hidden,
  .cb-main--island.island-nav-hidden.island-side-right { grid-template-areas: "content"; }
  .cb-main--island .cb-content { padding: 12px 16px 28px; }
  .cb-main--island .cb-content > .cb-spotlight { padding: 12px 16px 0; }
  .cb-island-tabs { margin: -12px -16px 12px; padding: 0 8px; }
  .cb-island-nav__inner { gap: 0; }
  .cb-island-group { padding: 6px 0; }
  .cb-island-link { padding: 7px 8px; font-size: 13px; }
  .cb-island-forum-link--child { padding-left: 18px; }
}
@media (max-width: 480px) {
  .cb-island-nav { padding: 12px 16px; }
  .cb-main--island .cb-content { padding: 12px 0 24px; }
  .cb-main--island .cb-content > .cb-spotlight { padding: 12px 16px 0; }
  .cb-island-tabs { margin: -12px 0 12px; padding: 0 4px; }
}

/* 岛屿布局：可折叠菜单组 */
.cb-island-group > summary { list-style: none; cursor: pointer; }
.cb-island-group > summary::-webkit-details-marker { display: none; }
.cb-island-group > summary:hover { color: var(--color-text-sub); }
.cb-island-caret {
  width: 0; height: 0; margin-left: auto; flex: none;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform .15s;
}
.cb-island-group[open] > summary .cb-island-caret { transform: rotate(90deg); }

/* ===================== 网站导航页 ===================== */
.cb-links-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.cb-link-card {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color .15s, transform .15s;
}
.cb-link-card:hover { border-color: var(--color-primary); transform: translateY(-1px); }
.cb-link-card__icon {
  width: 38px; height: 38px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 9px; overflow: hidden;
  background: var(--color-surface-alt);
  color: var(--color-text-muted); font-size: 18px;
}
.cb-link-card__icon img { width: 100%; height: 100%; object-fit: cover; }
.cb-link-card__body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.cb-link-card__body b { font-size: 14px; color: var(--color-text); }
.cb-link-card__body span { font-size: 12px; line-height: 1.55; color: var(--color-text-muted); }
.cb-link-card__body em { font-style: normal; font-size: 11px; color: var(--color-primary); }
@media (max-width: 480px) {
  .cb-links-grid { grid-template-columns: 1fr; }
}

/* ===================== 主题 DIY 装饰图 ===================== */
.cb-diy-banner { width: 100%; overflow: hidden; background: var(--color-bg); }
.cb-diy-banner img { display: block; width: 100%; height: clamp(120px, 18vw, 240px); object-fit: cover; }
.cb-diy-global {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  background-size: cover; background-position: center; background-repeat: no-repeat;
}
.cb-has-diy .cb-main, .cb-has-diy .cb-footer { position: relative; z-index: 1; }

/* 认证图片 / 勋章 */
.cb-cert-img { width: 16px; height: 16px; border-radius: 3px; object-fit: cover; vertical-align: -3px; margin-right: 3px; }
.cb-medal { display: inline-flex; align-items: center; gap: 3px; padding: 1px 7px 1px 3px; border-radius: 999px; background: var(--color-surface-alt); color: var(--color-text-sub); font-size: 11px; font-weight: 500; }
.cb-medal img { width: 18px; height: 18px; object-fit: cover; border-radius: 50%; }

/* ===================== Wiki ===================== */
.cb-wiki-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.cb-wiki-card {
  display: flex; flex-direction: column; gap: 6px;
  padding: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color .15s;
}
.cb-wiki-card:hover { border-color: var(--color-primary); }
.cb-wiki-card b { font-size: 15px; color: var(--color-text); }
.cb-wiki-card span { font-size: 12px; line-height: 1.6; color: var(--color-text-muted); }
.cb-wiki-card em { font-style: normal; font-size: 11px; color: var(--color-text-muted); }
@media (max-width: 480px) { .cb-wiki-grid { grid-template-columns: 1fr; } }

/* RSS 阅读器 */
.cb-reader-list { display: flex; flex-direction: column; }
.cb-reader-item { display: flex; flex-direction: column; gap: 4px; padding: 10px 0; border-bottom: 1px dashed var(--color-border); }
.cb-reader-item:last-child { border-bottom: 0; }
.cb-reader-item b { font-size: 14px; color: var(--color-text); }
.cb-reader-item span { font-size: 12px; line-height: 1.6; color: var(--color-text-muted); }
.cb-reader-item em { font-style: normal; font-size: 11px; color: var(--color-text-muted); }

/* 维护页只显示维护卡片 */
.cb-maintenance .cb-header, .cb-maintenance .cb-island-nav, .cb-maintenance .cb-footer { display: none !important; }

/* DIY 顶部横幅羽化 + 底部图片页脚 */
.cb-diy-banner--top img {
  -webkit-mask-image: linear-gradient(to bottom, #000 calc(100% - var(--diy-feather, 60px)), transparent 100%);
  mask-image: linear-gradient(to bottom, #000 calc(100% - var(--diy-feather, 60px)), transparent 100%);
}
.cb-footer--diy {
  position: relative;
  min-height: 180px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: transparent;
}
.cb-footer--diy::before {
  content: "";
  position: absolute; inset: 0; z-index: 0;
  background-image: var(--diy-image);
  background-size: cover;
  background-position: center;
  opacity: var(--diy-opacity, .2);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 var(--diy-feather, 60px));
  mask-image: linear-gradient(to bottom, transparent 0, #000 var(--diy-feather, 60px));
}
.cb-footer--diy::after {
  content: "";
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,.05), rgba(0,0,0,.42));
  pointer-events: none;
}
.cb-footer--diy .cb-footer__inner { position: relative; z-index: 1; width: 100%; }
.cb-footer--diy, .cb-footer--diy a, .cb-footer--diy .cb-footer__github,
.cb-footer--diy .cb-footer__license { color: #fff; }
.cb-footer--diy a:hover { color: #fff; opacity: .8; }
@media (max-width: 640px) {
  .cb-footer--diy { min-height: 150px; }
}

/* 发帖表单：提示词放入输入框 */
.cb-thread-form .cb-form-item--compact { margin-bottom: 10px; }
.cb-thread-form .cb-form-item--compact > label { display: none; }
.cb-thread-form .cb-form-item--compact .cb-input,
.cb-thread-form .cb-form-item--compact .cb-select { width: 100%; }

/* 岛屿侧栏目录 */
.cb-island-toc { padding: 4px 2px 12px; }
.cb-island-toc__head { padding: 4px 8px 8px; font-size: 12px; font-weight: 600; color: var(--color-text-muted); letter-spacing: .04em; }
.cb-island-toc__list { display: flex; flex-direction: column; gap: 1px; }
.cb-island-toc__list a { display: block; padding: 6px 9px; border-radius: var(--radius-sm); font-size: 13px; color: var(--color-text-sub); line-height: 1.45; }
.cb-island-toc__list a:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-island-toc__list a.lv2 { padding-left: 20px; }
.cb-island-toc__list a.lv3 { padding-left: 30px; font-size: 12px; }
.cb-island-toc__list a.lv4, .cb-island-toc__list a.lv5, .cb-island-toc__list a.lv6 { padding-left: 40px; font-size: 12px; color: var(--color-text-muted); }
.cb-island-toc__empty { padding: 8px; font-size: 12px; color: var(--color-text-muted); }
.cb-island-tool.on { background: var(--color-primary-light); color: var(--color-primary); }

/* 帖子列表更多操作 */
.cb-thread { position: relative; }
.cb-thread-list--plain { overflow: visible; }
.cb-thread__more { flex: none; position: relative; align-self: center; }
.cb-thread__more-btn { width: 28px; height: 28px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--color-text-muted); font-size: 20px; line-height: 1; cursor: pointer; }
.cb-thread__more-btn:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-thread-menu {
  position: absolute; right: 0; top: 32px; z-index: 80;
  min-width: 168px; padding: 5px; display: none;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.cb-thread__more.is-open .cb-thread-menu { display: block; }
.cb-thread-menu > button, .cb-thread-menu > a {
  display: flex; align-items: center; gap: 7px; width: 100%;
  padding: 8px 9px; border: 0; border-radius: var(--radius-sm);
  background: transparent; color: var(--color-text-sub); font-size: 13px; text-align: left; cursor: pointer;
}
.cb-thread-menu > button:hover, .cb-thread-menu > a:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-thread-menu .cb-ico { width: 15px; height: 15px; }
.cb-thread-menu__color { display: flex; align-items: center; gap: 6px; padding: 5px 7px; }
.cb-thread-menu__color input { width: 30px; height: 28px; padding: 0; border: 1px solid var(--color-border); border-radius: 4px; background: none; }
.cb-thread-menu__color button { flex: 1; padding: 6px 7px; border: 0; border-radius: 4px; background: var(--color-surface-alt); color: var(--color-text-sub); font-size: 12px; cursor: pointer; }
.cb-card:has(.cb-thread-list--plain) { overflow: visible; }

/* ===================== 全局通知横幅 ===================== */
.cb-notice-banner {
  overflow: hidden;
  max-height: 320px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  transition: max-height .32s ease, opacity .28s ease, transform .32s ease;
}
.cb-notice-banner.is-closing { max-height: 0 !important; opacity: 0; transform: translateY(-100%); }
.cb-notice-banner__inner {
  max-width: 1200px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 16px;
}
.cb-notice-banner__text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.cb-notice-banner__text b { font-size: 15px; line-height: 1.4; }
.cb-notice-banner__text span { font-size: 13px; line-height: 1.55; opacity: .9; }
.cb-notice-banner__close {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(255,255,255,.16); color: #fff; cursor: pointer;
}
.cb-notice-banner__close:hover { background: rgba(255,255,255,.3); }
.cb-notice-banner__close .cb-ico { width: 16px; height: 16px; }
.cb-island .cb-notice-banner__inner { max-width: none; }
.cb-notice-banner--drawer { display: none; }
.cb-drawer__island { display: none; }

/* 岛屿侧栏发帖 / 回复按钮 */
.cb-island-publish {
  display: flex; align-items: center; justify-content: center; gap: 7px;
  width: 100%; height: 38px; margin: 0 0 12px; padding: 0 12px;
  border-radius: var(--radius-sm);
  background: var(--color-primary); color: #fff;
  font-size: 14px; font-weight: 600;
}
.cb-island-publish:hover { background: var(--color-primary-dark); color: #fff; }
.cb-island-publish .cb-ico { width: 16px; height: 16px; }

@media (max-width: 860px) {
  .cb-notice-banner--desktop { display: none; }
  .cb-notice-banner--drawer { display: block; }
  .cb-notice-banner--drawer .cb-notice-banner__inner { padding: 10px 14px; }
  .cb-main--island > .cb-island-nav { display: none; }
  #island-nav-toggle, #island-nav-side { display: none; }
  .cb-drawer__island { display: block; order: 3; border-top: 1px solid var(--color-border); }
  .cb-header__right { order: 4; }
  .cb-drawer__island .cb-island-nav {
    position: static; height: auto; max-height: none;
    padding: 0; border: 0; background: transparent;
  }
  .cb-drawer__island .cb-island-nav__tools {
    position: static; padding: 10px 16px 6px; border: 0; background: transparent;
  }
  .cb-drawer__island .cb-island-publish { width: calc(100% - 32px); margin: 2px 16px 10px; }
  .cb-drawer__island .cb-island-nav__inner { padding: 0 12px 18px; }
  /* 抽屉固定在视口上，不能被顶栏的 backdrop-filter 变成 56px 高 */
  .cb-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
}

/* 排行榜筛选下拉 */
.cb-tab-rank { position: relative; }
.cb-tab-rank > .cb-tab { border: 0; background: transparent; cursor: pointer; font-family: inherit; }
.cb-tab-rank__caret { font-size: 10px; opacity: .7; margin-left: 2px; }
.cb-tab-rank__menu {
  position: absolute; top: 100%; left: 0; z-index: 90;
  min-width: 142px; padding: 5px; display: none;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.cb-tab-rank.is-open .cb-tab-rank__menu { display: block; }
.cb-tab-rank__menu a { display: block; padding: 7px 9px; border-radius: var(--radius-sm); color: var(--color-text-sub); font-size: 13px; white-space: nowrap; }
.cb-tab-rank__menu a:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cb-tab-rank__menu a.on { color: var(--color-primary); background: var(--color-primary-light); font-weight: 600; }

/* 帖子快捷操作弹窗 */
.cb-quick-dialog[hidden] { display: none; }
.cb-quick-dialog {
  position: fixed; inset: 0; z-index: 600;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.cb-quick-dialog__mask { position: absolute; inset: 0; background: rgba(15,23,42,.48); }
.cb-quick-dialog__box {
  position: relative; z-index: 1; width: min(420px, 96vw);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); box-shadow: 0 24px 70px rgba(15,23,42,.28);
  overflow: hidden; animation: cbQuickIn .18s ease;
}
@keyframes cbQuickIn { from { opacity: 0; transform: translateY(8px) scale(.98); } }
.cb-quick-dialog__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 13px 16px; border-bottom: 1px solid var(--color-border);
}
.cb-quick-dialog__head b { font-size: 15px; }
.cb-quick-dialog__head button {
  width: 28px; height: 28px; border: 0; border-radius: 50%;
  background: var(--color-surface-alt); color: var(--color-text-muted); font-size: 18px; cursor: pointer;
}
.cb-quick-dialog__body { padding: 16px; }
.cb-quick-dialog__label { display: block; margin-bottom: 7px; font-size: 13px; font-weight: 600; color: var(--color-text-sub); }
.cb-quick-dialog__tip { margin-top: 7px; font-size: 12px; line-height: 1.5; color: var(--color-text-muted); }
.cb-quick-dialog__foot {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 12px 16px; border-top: 1px solid var(--color-border); background: var(--color-surface-alt);
}

/* 移动端筛选标签换行，保证排行榜下拉不被横向滚动裁切 */
@media (max-width: 860px) {
  .cb-card__header--tabs .cb-tabs { flex-wrap: wrap; overflow: visible; white-space: normal; }
  .cb-card__header--tabs .cb-tabs::-webkit-scrollbar { display: none; }
}