/* ============================================================
   Nebula UI · Frontend：前台门户 / 公共资源库专用样式
   依赖 tokens.css / base.css / components.css
   ============================================================ */

/* ---------- 门户 Hero ---------- */
.hero {
  position: relative; text-align: center; padding: 92px 20px 60px; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(680px 320px at 50% -12%, var(--accent-soft), transparent 72%),
    radial-gradient(560px 300px at 6% 112%, rgba(124,92,255,.09), transparent 72%),
    radial-gradient(520px 280px at 96% 108%, rgba(49,208,200,.07), transparent 72%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(720px 380px at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(720px 380px at 50% 0%, #000 30%, transparent 75%);
}
.hero .badge { display: inline-block; padding: 4px 16px; border-radius: 20px; font-size: 12px; background: var(--accent-soft); color: var(--accent); margin-bottom: 22px; border: 1px solid var(--border); }
.hero h1 { font-size: clamp(28px, 5vw, 44px); letter-spacing: .5px; margin-bottom: 16px; position: relative; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { color: var(--text-secondary); max-width: 620px; margin: 0 auto 30px; font-size: 15px; position: relative; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; position: relative; }
.hero .cta .btn { padding: 11px 26px; font-size: 14px; }

/* 大搜索框 */
.hero-search { max-width: 560px; margin: 34px auto 0; position: relative; }
.hero-search .input { height: 46px; font-size: 14px; padding: 0 46px 0 16px; border-radius: 23px; background: var(--bg-surface); border: 1px solid var(--border-strong); box-shadow: var(--shadow); }
.hero-search .input:focus { border-color: var(--accent); }
.hero-search button { position: absolute; right: 6px; top: 6px; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); border: 0; color: #fff; cursor: pointer; }
.hero-search .hot { margin-top: 10px; font-size: 12px; color: var(--text-muted); }
.hero-search .hot a { color: var(--text-secondary); margin: 0 6px; }
.hero-search .hot a:hover { color: var(--accent); }

/* 数据亮点条 */
.metric-strip { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 44px; position: relative; }
.metric-strip .kpi { min-width: 150px; text-align: left; }

/* 区块通用 */
.front-sec { max-width: 1200px; margin: 0 auto; padding: 56px 20px; }
.sec-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.sec-head h2 { font-size: 20px; }
.sec-head .more { color: var(--text-muted); font-size: 13px; }
.sec-head .more:hover { color: var(--accent); }

/* 分类导航胶囊 */
.cat-nav { display: flex; gap: 10px; flex-wrap: wrap; }
.cat-nav a { display: flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 12px; background: var(--bg-surface); border: 1px solid var(--border); color: var(--text-secondary); font-size: 13px; text-decoration: none; transition: all .18s; }
.cat-nav a:hover, .cat-nav a.on { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.cat-nav a b { font-weight: 500; font-variant-numeric: tabular-nums; }
.cat-nav a .n { font-size: 11px; color: var(--text-muted); }

/* 热门资源列表 */
.hot-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 12px; }
.hot-item { display: flex; align-items: center; gap: 12px; background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 12px 16px; text-decoration: none; transition: all .18s; }
.hot-item:hover { border-color: var(--accent); transform: translateY(-1px); }
.hot-item .rank { width: 30px; height: 30px; border-radius: 9px; background: var(--bg-hover); color: var(--text-muted); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 500; flex-shrink: 0; }
.hot-item:nth-child(-n+3) .rank { background: var(--accent-soft); color: var(--accent); }
.hot-item .body { flex: 1; min-width: 0; }
.hot-item .body .nm { font-size: 13px; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hot-item .body .mt { font-size: 11px; color: var(--text-muted); }
.hot-item .cnt { font-size: 12px; color: var(--text-secondary); font-variant-numeric: tabular-nums; text-align: right; flex-shrink: 0; }

/* ---------- 资源库 ---------- */
.lib-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 22px 0 4px; }
.lib-top h1 { font-size: 24px; }
.lib-toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 18px 0; }
.lib-toolbar .input { width: 260px; }
.lib-toolbar .sort { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.lib-toolbar .sort .select { width: 150px; }

/* 分类/标签胶囊 */
.capsule { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0 4px; }
.capsule a {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 16px; border-radius: 20px;
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 13px; text-decoration: none; transition: .15s;
}
.capsule a b { font-weight: 600; opacity: .75; font-size: 11.5px; }
.capsule a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.capsule a.on {
  background: var(--grad); color: #fff; border-color: transparent;
  box-shadow: 0 4px 14px -4px rgba(99,102,241,.5);
}
.capsule a.on b { opacity: .92; }

/* 资源卡片 */
.r-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }

/* ================= 资源库 v3：统计条 + 左右分栏布局 ================= */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 18px 0 22px; }
.stat { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; display: flex; flex-direction: column; gap: 2px; }
.stat b { font-size: 20px; font-weight: 700; letter-spacing: -.01em; background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat span { font-size: 11px; color: var(--text-muted); }

.res-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 22px; align-items: start; margin-top: 6px; }
.res-side { position: sticky; top: 66px; display: flex; flex-direction: column; gap: 14px; max-height: calc(100vh - 80px); overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.side-block { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 14px; padding: 12px; }
.side-title { font-size: 11px; color: var(--text-muted); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; font-weight: 600; }
.side-item { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 8px; color: var(--text-secondary); font-size: 13px; text-decoration: none; transition: .15s; margin-bottom: 2px; }
.side-item b { font-size: 11px; opacity: .65; font-weight: 600; }
.side-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.side-item.on { background: var(--grad); color: #fff; font-weight: 500; box-shadow: 0 4px 14px -4px rgba(99,102,241,.5); }
.side-item.on b { opacity: .9; }
.side-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.side-tags .tag { cursor: pointer; }
.side-tags .tag.on { background: var(--grad); color: #fff; border-color: transparent; }

.res-main { min-width: 0; }
.res-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.res-count { font-size: 13px; color: var(--text-secondary); }
.res-count b { color: var(--accent); font-weight: 700; }
.hide-mobile { display: inline; }

/* 卡片：格式 tab 与操作按钮同行（操作右对齐），复制按钮在头部 */
.r-fmt { position: relative; }
.r-fmt .r-act { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.r-fmt .r-act .btn { flex: none; }

@media (max-width: 1199px) {
  .res-layout { grid-template-columns: 1fr; }
  .res-side { position: static; max-height: none; overflow: visible; }
}
@media (max-width: 767px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .hide-mobile { display: none; }
  .r-fmt .r-act { margin-left: 0; flex-wrap: wrap; }
}
.r-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 16px; display: flex; flex-direction: column; gap: 10px; box-shadow: var(--shadow); transition: border-color .18s, transform .18s, box-shadow .18s; }
.r-card:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: 0 10px 28px -10px rgba(0,0,0,.28); }
.r-head { display: flex; align-items: center; gap: 10px; }
.r-head .file-ico { width: 36px; height: 36px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 15px; }
.r-head .nm { font-size: 13px; font-weight: 500; word-break: break-all; flex: 1; min-width: 0; }
.r-head .act { display: flex; gap: 6px; flex-shrink: 0; }
.r-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 11px; color: var(--text-muted); }
.r-url { display: flex; gap: 8px; align-items: center; }
.r-url .code-block { flex: 1; }
.r-fmt { display: flex; gap: 4px; background: var(--bg-hover); border-radius: 8px; padding: 3px; }
.r-fmt button { border: 0; background: transparent; color: var(--text-muted); font-size: 11px; padding: 3px 10px; border-radius: 6px; cursor: pointer; font-family: var(--font); }
.r-fmt button.on { background: var(--bg-elevated); color: var(--text-primary); box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.r-foot { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 10px; }
.r-foot .tag { cursor: default; }
.r-thumb { width: 100%; height: 96px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-hover); cursor: zoom-in; }

/* 预览弹层 */
.pv-modal { position: fixed; inset: 0; z-index: 120; display: none; align-items: center; justify-content: center; padding: 20px; }
.pv-modal.show { display: flex; }
.pv-modal .pv-bg { position: absolute; inset: 0; background: rgba(0,0,0,.62); }
.pv-modal .pv-box { position: relative; background: var(--bg-surface); border: 1px solid var(--border-strong); border-radius: var(--radius-l); max-width: 720px; width: 100%; max-height: 86vh; display: flex; flex-direction: column; box-shadow: var(--shadow-lg); }
.pv-modal .pv-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.pv-modal .pv-head b { font-size: 14px; font-weight: 500; word-break: break-all; }
.pv-modal .pv-body { padding: 18px; overflow: auto; flex: 1; }
.pv-modal .pv-body img { display: block; margin: 0 auto; max-width: 100%; border-radius: 8px; }
.pv-modal .pv-body pre { white-space: pre-wrap; word-break: break-all; max-height: 60vh; }
.pv-modal .pv-body video { width: 100%; border-radius: 8px; }
.pv-close { background: none; border: 0; color: var(--text-secondary); font-size: 20px; cursor: pointer; line-height: 1; }

/* 返回顶部浮动按钮（前台/后台通用，app.js UI.backTop 动态创建） */
.back-top {
  position: fixed; right: 22px; bottom: 26px; z-index: 200;
  width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--bg-surface);
  color: var(--text-secondary); font-size: 18px; line-height: 1;
  cursor: pointer; box-shadow: var(--shadow);
  opacity: 0; transform: translateY(10px); pointer-events: none;
  transition: opacity .2s, transform .2s, color .15s, border-color .15s;
}
.back-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { color: var(--accent); border-color: var(--accent); }
@media (max-width: 767px) {
  .back-top { right: 14px; bottom: 18px; width: 38px; height: 38px; border-radius: 10px; }
}

/* 页脚 */
.front-footer { border-top: 1px solid var(--border); padding: 26px 20px; text-align: center; color: var(--text-muted); font-size: 12px; }
.front-footer a { color: var(--text-secondary); margin: 0 8px; }
.front-footer .ff-main { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 2px 0; line-height: 1.8; }
.front-footer .ff-beian { margin-top: 10px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 4px 16px; }
.front-footer .ff-beian a { display: inline-flex; align-items: center; gap: 5px; margin: 0; color: var(--text-muted); }
.front-footer .ff-beian a:hover { color: var(--accent); }

/* 新媒体矩阵：默认展示平台图标，悬停弹出对应二维码浮层（独立元素，不破坏布局） */
.social-section { text-align: center; padding: 56px 22px 60px; }
.social-section h2 { font-size: 24px; letter-spacing: -.02em; margin-bottom: 10px; }
.social-section > p { color: var(--text-muted); margin-bottom: 30px; font-size: 14px; }
.social-grid { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.social-item { position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 18px 12px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); transition: transform .18s, border-color .18s, box-shadow .18s; cursor: pointer; }
.social-item:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 6px 20px -8px var(--accent-soft); }
.social-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: #fff; border: 1px solid var(--border); flex-shrink: 0; }
.social-icon img { width: 30px; height: 30px; object-fit: contain; }
.social-name { font-size: 12.5px; color: var(--text-secondary); }
/* 二维码浮层：hover 显示在图标上方居中，absolute 不占文档流（布局零跳动），不遮盖左右 */
.social-qr { display: none; position: absolute; bottom: calc(100% + 12px); left: 50%; transform: translateX(-50%); padding: 8px; background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.22); z-index: 20; }
.social-qr img { display: block; max-width: 150px; max-height: 150px; width: auto; height: auto; object-fit: contain; }
.social-item:hover .social-qr { display: block; }
@media (max-width: 767px) {
  .social-grid { gap: 10px; }
  .social-item { padding: 12px 12px 10px; }
  .social-icon { width: 40px; height: 40px; }
  .social-icon img { width: 26px; height: 26px; }
  .social-qr img { max-width: 130px; max-height: 130px; }
}

/* 友情链接 */
.friend-links { text-align: center; padding: 42px 22px 52px; border-top: 1px solid var(--border); }
.friend-links h2 { font-size: 18px; letter-spacing: -.02em; margin-bottom: 22px; }
.friend-grid { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.friend-item { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text-secondary); font-size: 13px; text-decoration: none; transition: transform .18s, border-color .18s, color .18s, box-shadow .18s; }
.friend-item:hover { border-color: var(--accent); color: var(--text-primary); transform: translateY(-1px); box-shadow: 0 4px 14px -6px var(--accent-soft); }
.friend-item img { width: 18px; height: 18px; object-fit: contain; flex-shrink: 0; }
@media (max-width: 767px) {
  .friend-item { padding: 8px 13px; font-size: 12.5px; }
}

@media (max-width: 767px) {
  .hero { padding: 60px 16px 40px; }
  .metric-strip .kpi { min-width: calc(50% - 6px); }
  .r-grid { grid-template-columns: 1fr; }
  .lib-toolbar .input { width: 100%; }
  .lib-toolbar .sort { margin-left: 0; }
}

/* ---------- 前台导航 + 官方 logo（主题感知：浅色黑 logo / 深色白 logo / 默认彩色） ---------- */
.front-nav {
  position: relative; z-index: 130;   /* 移动菜单最高层级：面板贴下缘展开且盖过页面主体与遮罩 */
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1200px; margin: 0 auto; padding: 18px 22px 6px; gap: 12px;
}
.brand-logo { display: inline-flex; align-items: center; }
.brand-logo img { height: 34px; width: auto; display: none; }
.brand-logo img.custom-logo { display: none; height: 34px; width: auto; max-height: 40px; object-fit: contain; }  /* 后台自定义品牌 Logo（浅/深版按主题切换） */
html[data-theme="light"] .brand-logo img.custom-logo.light { display: inline-block; }
html[data-theme="dark"] .brand-logo img.custom-logo.dark { display: inline-block; }
html[data-theme="dark"] .brand-logo img.custom-logo.light.only { display: inline-block; }  /* 未配深色版时浅色版通用 */
.brand-logo img.auto { display: inline-block; }
html[data-theme="dark"] .brand-logo img.auto { display: none; }
html[data-theme="dark"] .brand-logo img.white { display: inline-block; }
html[data-theme="light"] .brand-logo img.auto { display: none; }
html[data-theme="light"] .brand-logo img.black { display: inline-block; }

/* 导航链接组（PC 横排）：后台配置同源数据，手机抽屉共用 */
.front-nav-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.front-nav-links .nav-on { color: var(--accent); border-color: var(--accent); }
.front-nav-mobile { display: none; align-items: center; gap: 8px; }

/* 汉堡按钮 */
.front-burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 4px;
  width: 38px; height: 38px; padding: 9px 8px; border-radius: 10px;
  background: var(--bg-surface); border: 1px solid var(--border); cursor: pointer;
}
.front-burger span { display: block; height: 2px; border-radius: 2px; background: var(--text-primary); transition: background .2s; }
.front-burger.open span { background: var(--accent); }   /* 打开时保持三横线，仅用主题色表示激活（不做 ✕ 变形） */

/* 手机端导航面板：fixed 从屏幕顶部覆盖导航栏展开（导航栏本身不动 → 页面零跳动）；
   面板含品牌 logo + 关闭按钮 + 导航项，打开时完全盖住顶部导航栏 → 任何时刻只有一个 logo；
   关闭时向上收起，导航栏自然露出，无交叉、无布局跳动 */
.front-drawer {
  position: fixed; top: 0; left: 0; right: 0; z-index: 130;
  background: var(--bg-surface); border-bottom: 1px solid var(--border);
  border-radius: 0 0 16px 16px; box-shadow: 0 18px 40px rgba(0,0,0,.18);
  padding: 12px 14px 16px;
  transform: translateY(-100%); visibility: hidden;
  transition: transform .3s cubic-bezier(.22,.61,.36,1), visibility .3s;
  display: flex; flex-direction: column; gap: 2px;
}
.front-drawer.open { transform: translateY(0); visibility: visible; }
.front-drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 2px 2px 10px; border-bottom: 1px solid var(--border); margin-bottom: 6px; }
.drawer-logo { padding: 0; border: 0; margin: 0; }
.drawer-logo img { height: 26px; }
.drawer-logo img.custom-logo { height: 26px; }
.front-drawer-close {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--bg-hover);
  color: var(--text-muted); cursor: pointer; transition: .15s;
}
.front-drawer-close:hover { color: var(--accent); border-color: var(--accent); }
.front-drawer-item {
  display: block; padding: 12px 14px; border-radius: 10px;
  color: var(--text-secondary); font-size: 14px; text-decoration: none; transition: .15s;
}
.front-drawer-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.front-drawer-item.nav-on { background: var(--grad); color: #fff; font-weight: 500; }
.front-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 120;
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
.front-overlay.show { opacity: 1; pointer-events: auto; }

/* 手机 / 小屏：隐藏横排链接，显示汉堡按钮 */
@media (max-width: 767px) {
  .front-nav-links { display: none; }
  .front-nav-mobile { display: inline-flex; }
}

/* ---------- 资源库视图切换 ---------- */
.r-view { display: inline-flex; background: var(--bg-hover); border: 1px solid var(--border); border-radius: var(--radius-m); padding: 3px; }
.r-view button { border: 0; background: transparent; color: var(--text-muted); font-size: 12px; padding: 4px 12px; border-radius: var(--radius-s); cursor: pointer; transition: .15s; font-family: var(--font); }
.r-view button.on { background: var(--bg-elevated); color: var(--text-primary); box-shadow: 0 1px 4px rgba(0,0,0,.2); }
.r-grid[data-view="list"] { display: none; }
.r-list { display: none; }
.r-list[data-view="list"] { display: block; }

/* 列表行 */
.r-list-head, .r-list-row {
  display: grid; grid-template-columns: 34px minmax(0,1.2fr) minmax(0,0.8fr) 84px 56px 92px minmax(0,300px);
  gap: 12px; align-items: center;
}
.r-list-head {
  padding: 4px 14px 8px; color: var(--text-muted); font-size: 11px; letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}
.r-list-head span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-list-head .r-act-h { text-align: right; }
.r-list-row {
  padding: 9px 14px;
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-m);
  margin-bottom: 7px; transition: .15s; font-size: 12.5px;
}
.r-list-row:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.r-list-row .file-ico {
  width: 28px; height: 28px; border-radius: 7px; display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .02em;
}
.r-list-row .l-name { min-width: 0; }
.r-list-row .l-name b { display: block; font-weight: 500; font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-list-row .l-name span { font-size: 11px; color: var(--text-muted); }
.r-list-row .l-cat-col { min-width: 0; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-list-row .l-muted { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.r-list-row .l-act { display: flex; gap: 5px; justify-content: flex-end; align-items: center; }
.r-list-row .r-fmt-mini { display: inline-flex; background: var(--bg-hover); border: 1px solid var(--border); border-radius: 6px; padding: 2px; margin-right: 4px; }
.r-list-row .r-fmt-mini button { border: 0; background: transparent; color: var(--text-muted); font-size: 10.5px; padding: 2px 7px; border-radius: 4px; cursor: pointer; font-family: var(--font); }
.r-list-row .r-fmt-mini button.on { background: var(--bg-elevated); color: var(--text-primary); }

@media (max-width: 900px) {
  .r-list-row { grid-template-columns: 30px minmax(0, 1fr); grid-template-rows: auto auto; gap: 8px 12px; }
  .r-list-row .l-size, .r-list-row .l-ver, .r-list-row .l-time, .r-list-row .l-cat-col { display: none; }
  .r-list-row .l-act { grid-column: 2 / -1; justify-content: flex-start; flex-wrap: wrap; gap: 6px; }
  .r-list-row .l-act .r-fmt-mini { margin-right: 0; }
}
.r-list-row .l-thumb { width: 28px; height: 28px; object-fit: cover; border-radius: 7px; border: 1px solid var(--border); cursor: zoom-in; flex-shrink: 0; }
.code-block { cursor: pointer; }
.code-block:hover { border-color: var(--accent); }

/* ---------- 三端适配补强：PC ≥1200 完整 · 平板 768-1199 · 手机 <768 ---------- */
@media (max-width: 1199px) {
  .hero h1 { font-size: 40px; }
  .hero { padding: 72px 28px 56px; }
}
@media (max-width: 991px) {
  .hero h1 { font-size: 34px; }
  .metric-strip { flex-wrap: wrap; }
  .metric-strip .kpi { min-width: calc(50% - 8px); }
  .lib-top { flex-wrap: wrap; gap: 10px; }
}
@media (max-width: 767px) {
  .front-nav { padding: 12px 12px 2px; gap: 6px; flex-wrap: nowrap; }
  .front-nav > div { flex-wrap: nowrap; gap: 6px; }
  .front-nav .btn { padding: 5px 9px; font-size: 11.5px; white-space: nowrap; }
  .nav-admin { display: none; }
  .brand-logo img { height: 24px; }
  .hero { padding: 52px 16px 40px; }
  .hero h1 { font-size: 27px; line-height: 1.3; }
  .hero .lead { font-size: 14px; margin-top: 14px; }
  .hero .search-wrap { margin-top: 22px; }
  .hero .search-wrap input { height: 46px; font-size: 14px; }
  .metric-strip .kpi { min-width: calc(50% - 6px); }
  .r-grid { grid-template-columns: 1fr; }
  .lib-toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .lib-toolbar .input { width: 100%; }
  .lib-toolbar .sort { margin-left: 0; justify-content: space-between; }
  .capsule { gap: 6px; }
  .capsule a { font-size: 12px; padding: 5px 12px; }
  .card .field, .field input, .field .input, .field select, .field .select { width: 100%; }
  .docs-block pre, .docs-block code { font-size: 11.5px; word-break: break-all; }
  .front-footer { padding: 20px 14px; }
}

/* ================= 门户深度设计 ================= */
/* Hero 光晕背景 */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; top: -160px; right: -120px; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.22), transparent 65%); pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; bottom: -140px; left: -100px; width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.12), transparent 65%); pointer-events: none;
}
.hero .badge { display: inline-flex; align-items: center; gap: 7px; padding: 6px 14px; border-radius: 20px; border: 1px solid var(--border); background: var(--surface); backdrop-filter: blur(8px); font-size: 12px; color: var(--accent); font-weight: 500; letter-spacing: .02em; }
.hero .badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.hero h1 { font-size: 46px; font-weight: 700; letter-spacing: -.025em; line-height: 1.18; margin: 18px 0 14px; position: relative; z-index: 1; }
.hero h1 em { font-style: normal; background: linear-gradient(120deg, var(--accent), var(--accent-2), var(--accent-3)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { max-width: 620px; margin: 0 auto; color: var(--text-muted); font-size: 15px; line-height: 1.8; position: relative; z-index: 1; }
.hero .cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 24px; position: relative; z-index: 1; }
.hero .cta .btn { min-width: 132px; }
.hero-search { max-width: 560px; margin: 28px auto 0; position: relative; z-index: 1; }
.hero-search input { width: 100%; height: 50px; border-radius: 12px; padding: 0 52px 0 18px; font-size: 14.5px; }
.hero-search button { position: absolute; right: 6px; top: 6px; width: 38px; height: 38px; border-radius: 9px; border: 0; background: var(--grad); color: #fff; cursor: pointer; font-size: 16px; transition: transform .15s; }
.hero-search button:hover { transform: translateX(2px); }
.metric-strip { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 32px; position: relative; z-index: 1; }
.metric-strip .kpi { min-width: 128px; padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; backdrop-filter: blur(10px); transition: transform .15s, border-color .15s; }
.metric-strip .kpi:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.metric-strip .kpi .v { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.metric-strip .kpi .l { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* 分类卡 */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.cat-card { display: flex; flex-direction: column; gap: 8px; padding: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; text-decoration: none; transition: transform .15s, border-color .15s, box-shadow .15s; }
.cat-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 8px 24px rgba(99,102,241,.12); }
.cat-card .ic { width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; background: var(--accent-soft); color: var(--accent); font-size: 15px; }
.cat-card b { font-size: 14px; font-weight: 600; }
.cat-card .n { font-size: 11.5px; color: var(--text-muted); }
.cat-card .bar { height: 3px; border-radius: 3px; background: var(--bg-hover); overflow: hidden; }
.cat-card .bar i { display: block; height: 100%; border-radius: 3px; background: var(--grad); }

/* 热门榜（带进度条） */
.hot-item { display: grid; grid-template-columns: 30px minmax(0,1fr) 84px; gap: 12px; align-items: center; padding: 13px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; text-decoration: none; transition: transform .15s, border-color .15s; }
.hot-item:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.hot-item .rank { width: 26px; height: 26px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: var(--accent); background: var(--accent-soft); }
.hot-item:nth-child(1) .rank { color: #fff; background: linear-gradient(135deg,#F59E0B,#F97316); }
.hot-item:nth-child(2) .rank { color: #fff; background: linear-gradient(135deg,#94A3B8,#64748B); }
.hot-item:nth-child(3) .rank { color: #fff; background: linear-gradient(135deg,#C084FC,#8B5CF6); }
.hot-item .body { min-width: 0; }
.hot-item .nm { display: block; font-size: 13.5px; font-weight: 500; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hot-item .mt { display: block; font-size: 11.5px; color: var(--text-muted); margin-top: 2px; }
.hot-item .bar { height: 3px; border-radius: 3px; background: var(--bg-hover); overflow: hidden; margin-top: 6px; }
.hot-item .bar i { display: block; height: 100%; border-radius: 3px; background: var(--grad); }
.hot-item .cnt { text-align: right; font-size: 12px; color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* 特性卡（带图标） */
.feat { padding: 22px; border-radius: 16px; }
.feat .fic { width: 40px; height: 40px; border-radius: 11px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--accent-soft), var(--accent-2-soft, var(--accent-soft))); color: var(--accent); margin-bottom: 14px; }
.feat h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.feat p { font-size: 12.5px; line-height: 1.75; color: var(--text-muted); margin: 0; }

/* CTA 横幅 */
.cta-banner { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding: 26px 28px; border-radius: 18px; background: linear-gradient(120deg, rgba(99,102,241,.16), rgba(139,92,246,.10)); border: 1px solid var(--border-strong); margin-top: 8px; }
.cta-banner b { font-size: 17px; font-weight: 700; letter-spacing: -.01em; }
.cta-banner p { font-size: 12.5px; color: var(--text-muted); margin-top: 4px; }
.cta-banner .btn { min-width: 140px; }

/* ================= 接入文档（重设计版：顶部锚点导航 + 卡片化分区） ================= */
.docs-toc { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin: 10px auto 30px; max-width: 900px; padding: 0 16px; }
.docs-toc a { padding: 7px 15px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text-muted); font-size: 12.5px; text-decoration: none; transition: .15s; }
.docs-toc a:hover { color: var(--accent); border-color: var(--accent); }
.docs-toc a.on { background: var(--grad); color: #fff; border-color: transparent; font-weight: 500; }
.docs-body { max-width: 860px; margin: 0 auto; padding: 0 20px 64px; }
.doc-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 26px 28px; margin-bottom: 18px; scroll-margin-top: 20px; }
.doc-card h2 { font-size: 17px; font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.doc-card h2 .step { width: 26px; height: 26px; border-radius: 8px; display: flex; align-items: center; justify-content: center; background: var(--grad); color: #fff; font-size: 13px; font-weight: 600; flex-shrink: 0; }
.doc-card p, .doc-card li { font-size: 13.5px; line-height: 1.85; color: var(--text-secondary); }
.doc-card ul { padding-left: 18px; }
.doc-pre { position: relative; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 12px; padding: 18px 16px; overflow-x: auto; font-family: var(--mono); font-size: 12.5px; line-height: 1.75; margin: 12px 0; }
.doc-pre .c { color: var(--text-muted); }
.copy-code { position: absolute; top: 10px; right: 10px; padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text-muted); font-size: 11px; cursor: pointer; font-family: var(--font); transition: .15s; }
.copy-code:hover { color: var(--accent); border-color: var(--accent); }
.doc-tip { border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 12px 12px 0; padding: 12px 16px; font-size: 12.5px; color: var(--text-secondary); margin: 14px 0; }
.doc-card details { border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; margin: 10px 0; }
.doc-card details summary { cursor: pointer; font-size: 13.5px; font-weight: 500; color: var(--text-primary); }
.doc-card details p { margin-top: 8px; font-size: 12.5px; }
.doc-card code.inline { font-family: var(--mono); font-size: 12px; background: var(--bg-hover); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; }
.doc-card .table { margin: 10px 0; }
@media (max-width: 767px) {
  .docs-toc { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 6px; margin-bottom: 22px; }
  .docs-toc a { flex-shrink: 0; }
  .doc-card { padding: 20px 18px; }
}

/* ================= 防溢出 / 抗挤压修复（列表·卡片·表格） ================= */
.r-grid, .r-list { min-width: 0; }
.r-card { min-width: 0; overflow: hidden; }
.r-url { min-width: 0; }
.r-url .code-block { min-width: 0; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-fmt { flex-wrap: wrap; }
.r-fmt button { flex: 1; min-width: 56px; }
.r-thumb, .r-list-row .l-thumb { max-width: 100%; }
/* 列表行：文件名/分类/操作列均可压缩（minmax(0,…)），避免文字被挤压 */
.r-list-row { grid-template-columns: 34px minmax(0,1.2fr) minmax(0,0.8fr) 84px 56px 92px minmax(0,300px); }
.r-list-row .l-act { min-width: 0; flex-wrap: wrap; }
.r-list-row .l-name { min-width: 0; }
.r-list-row .l-name b, .r-list-row .l-name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* 平板：隐藏更新时间列与版本号，操作列收紧 */
@media (max-width: 1199px) {
  .r-list-row { grid-template-columns: 30px minmax(0,1.6fr) 80px 52px minmax(0,240px); }
  .r-list-row .l-time, .r-list-row .l-ver { display: none; }
}
/* 中间尺寸（平板偏窄）：再隐藏大小列，3 列布局不挤压 */
@media (max-width: 991px) {
  .r-list-row { grid-template-columns: 30px minmax(0,1fr) minmax(0,220px); }
  .r-list-row .l-size { display: none; }
}
/* 首页榜单防溢出 */
.hot-item .nm { min-width: 0; }

/* ================= 小屏卡片精简 / 列表仅PC / 深色渐变提亮 ================= */
/* 手机卡片精简：删除分类/大小/版本/时间（只留名称/标签/操作/URL），与 PC 卡片保持一致精简 */
@media (max-width: 767px) {
  .r-card .m-cat, .r-card .m-size, .r-card .m-ver, .r-card .m-time { display: none; }
}
/* 列表视图仅 PC 大屏（≥1200）可用；平板/手机强制卡片，隐藏切换按钮 */
@media (max-width: 1199px) {
  .r-view { display: none; }
  .r-list { display: none !important; }
  .r-grid { display: grid !important; }
}
/* 深色主题下渐变标题提亮（首页 Hero）——保证对比度 */
:root[data-theme="dark"] .hero h1 em {
  background: linear-gradient(120deg, #818CF8, #A78BFA, #67E8F9);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
/* 浅色主题（白天）渐变标题提亮：深靛蓝→紫→深青，浅底上高对比，避免"看不见" */
:root[data-theme="light"] .hero h1 em {
  background: linear-gradient(120deg, #4338CA, #7C3AED, #0E7490);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}