/* Loopback 官网 — UI规范-YouMind风格版 v3
   灰底白板 · 细描边 · 无投影 · 大留白 · 胶囊控件 · 主题绿只给主操作 */

:root {
  /* 主题色（森林暗绿） */
  --primary: #004f2d;
  --primary-hover: #003920;
  --primary-fg: #ffffff;
  --primary-soft: #e8f3ec;
  --ring: #004f2d;

  /* 背景结构 */
  --bg: #f7f7f7;
  --panel: #ffffff;
  --sunken: #f7f7f7;

  /* 文字（墨色 alpha） */
  --fg: rgba(0, 0, 0, .88);
  --fg-secondary: rgba(0, 0, 0, .60);
  --fg-caption: rgba(0, 0, 0, .40);
  --fg-disabled: rgba(0, 0, 0, .24);

  /* 边框与状态纱 */
  --border: rgba(2, 4, 26, .16);
  --border-input: rgba(31, 31, 31, .08);
  --border-subtle: rgba(31, 31, 31, .06);
  --divider: rgba(31, 31, 31, .07);
  --hover: rgba(31, 31, 31, .04);
  --select: rgba(2, 4, 26, .07);

  /* 功能色 */
  --link: #0063db;
  --destructive: #ff382e;
  --error: #f46273;
  --success: #28cd41;
  --warning: #ff9500;

  /* 圆角 */
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --pill: 999px;

  /* 间距 */
  --micro: 4px; --gap-xs: 8px; --gap-sm: 12px;
  --gap-md: 16px; --pad: 24px; --page-safe: 24px;

  /* 投影（仅浮层） */
  --shadow-overlay: 0 4px 16px rgba(2, 4, 26, .08);

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text",
          "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;

  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 20px;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

::selection { background: var(--primary-soft); }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: rgba(31, 31, 31, .18); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(31, 31, 31, .26); }
::-webkit-scrollbar-track { background: transparent; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

/* ---------- 顶部导航（灰底、不吸顶、无毛玻璃） ---------- */
header.site { background: var(--bg); }
.nav { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo {
  display: flex; align-items: center; gap: var(--gap-xs);
  font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg);
}
.logo:hover { text-decoration: none; }
.logo img { width: 24px; height: 24px; display: block; }
/* min-width:0 + overflow 让 nav-links 成为「可收缩的那个」：长标签语言（ru/de/es）真放不下时
   裁的是次要导航，而不是把主 CTA 挤出视口（曾 ru 溢出 129px、试用按钮整个被裁掉点不到）。 */
.nav-links { display: flex; gap: 6px; flex: 1 1 auto; min-width: 0; overflow: hidden; }
.nav-links a {
  color: var(--fg-secondary); font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: var(--radius-sm);
  white-space: nowrap; /* 英文等长词条不许折行(Security & Deployment 等) */
}
.nav-links a:hover { background: var(--hover); color: var(--fg); text-decoration: none; }
.nav-links a.active { background: var(--select); color: var(--fg); font-weight: 600; }
.nav-cta { display: flex; gap: var(--gap-xs); align-items: center; flex: 0 0 auto; }

/* ---------- 按钮（一律胶囊） ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--gap-xs);
  height: 36px; padding: 0 18px;
  border-radius: var(--pill); font-size: 14px; font-weight: 500; font-family: var(--sans);
  border: none; cursor: pointer; white-space: nowrap;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { background: var(--primary-hover); color: var(--primary-fg); }
.btn-ghost {
  background: var(--panel); color: var(--fg);
  border: 1px solid var(--border-input);
}
.btn-ghost:hover { border-color: var(--border); background: var(--hover); color: var(--fg); }
.btn-lg { height: 44px; padding: 0 24px; }

/* ---------- 照片 Hero(sierra 式，含对话动效) ---------- */
.hero-photo {
  position: relative; overflow: hidden;
  display: flex; align-items: center;
  min-height: 620px; padding: 72px 0;
}
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 60% 32%;
}
.hero-shade {
  position: absolute; inset: 0;
  background: linear-gradient(90deg,
    rgba(28, 19, 10, .78) 0%, rgba(28, 19, 10, .50) 46%, rgba(28, 19, 10, .16) 100%);
}
.hero-photo-inner {
  position: relative; display: flex; align-items: center;
  justify-content: space-between; gap: 48px; width: 100%;
}
.hero-copy { flex: 1 1 480px; max-width: 560px; }
.hero-photo h1 {
  font-size: 28px; line-height: 36px; font-weight: 650; color: #ffffff;
  margin-bottom: var(--gap-md);
}
.hero-photo h1 em { font-style: normal; color: #cde9d9; }
.hero-photo .sub {
  font-size: 15px; line-height: 1.6; color: rgba(255, 255, 255, .82);
  max-width: 480px; margin-bottom: 32px;
}
.hero-photo .actions { display: flex; gap: var(--gap-sm); }
.hero-btn-solid { background: #ffffff; color: var(--fg); }
.hero-btn-solid:hover { background: rgba(255, 255, 255, .86); color: var(--fg); }
.hero-btn-ghost { border: 1px solid rgba(255, 255, 255, .55); color: #ffffff; }
.hero-btn-ghost:hover { background: rgba(255, 255, 255, .12); color: #ffffff; }

.hero-chat {
  flex: 0 0 380px; display: flex; flex-direction: column; gap: var(--gap-sm);
  min-height: 300px; justify-content: flex-start;
  /* 视口比版心宽时，把对话浮层推向右缘（最多 200px），窄屏自动归位 */
  margin-right: calc(-1 * clamp(0px, (100vw - var(--maxw)) / 2 - var(--pad), 200px));
}
.hc-case { display: none; flex-direction: column; gap: var(--gap-sm); }
.hc-case.active { display: flex; }
.hc-case .hc-confirm { margin-top: 0; }
.hc-user, .hc-agent, .hc-widget, .hc-confirm {
  opacity: 0; transform: translateY(14px) scale(.98);
  transition: opacity .5s, transform .5s cubic-bezier(.2, .9, .3, 1.2);
}
.hc-user.on, .hc-agent.on, .hc-widget.on, .hc-confirm.on { opacity: 1; transform: none; }
.hc-user {
  align-self: flex-end;
  background: rgba(24, 17, 10, .62);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-lg); padding: 12px 16px;
  font-size: 14px; color: rgba(255, 255, 255, .94);
}
.hc-agent, .hc-widget {
  background: rgba(45, 32, 19, .66);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius-lg); padding: 14px 16px;
  font-size: 14px; line-height: 1.55; color: rgba(255, 255, 255, .94);
}
.hc-who {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: rgba(255, 255, 255, .72); margin-bottom: 6px;
}
.hc-who img { width: 14px; height: 14px; display: block; }
.hc-w-head { font-size: 12px; color: rgba(255, 255, 255, .72); margin-bottom: var(--gap-xs); }
.hc-opts { display: flex; gap: var(--gap-xs); flex-wrap: wrap; }
.hc-opt {
  padding: 2px 14px; border-radius: var(--pill);
  border: 1px solid rgba(255, 255, 255, .38);
  font-size: 12px; line-height: 22px; color: #ffffff;
  transition: background .3s, border-color .3s;
}
.hc-opt.sel { background: #1f9d55; border-color: #1f9d55; }
.hc-confirm {
  margin-top: var(--gap-sm);
  display: flex; align-items: center; justify-content: space-between; gap: var(--gap-xs);
  background: #ffffff; color: var(--fg);
  border-radius: var(--radius-sm); padding: 10px 12px; font-size: 14px;
}
.hc-confirm .uc-icon { color: #1f9d55; width: 18px; height: 18px; }

/* ---------- Hero / 页头 ---------- */
.hero { padding: 96px 0 72px; text-align: center; }
.hero h1 {
  font-size: 28px; line-height: 36px; font-weight: 600; color: var(--fg);
  max-width: 840px; margin: 0 auto var(--gap-md);
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p.sub {
  font-size: 15px; line-height: 1.6; color: var(--fg-secondary);
  margin: 0 auto 32px;
}
.hero .actions { display: flex; gap: var(--gap-sm); justify-content: center; }

.page-hero { padding: 72px 0 24px; }
.page-hero .kicker { font-size: 12px; line-height: 16px; color: var(--fg-caption); margin-bottom: var(--gap-xs); }
.page-hero h1 { font-size: 28px; line-height: 36px; font-weight: 600; color: var(--fg); max-width: 760px; }
.page-hero p.sub { font-size: 15px; line-height: 1.6; color: var(--fg-secondary); margin-top: var(--gap-sm); }

/* ---------- 区块（呼吸感靠留白，不靠分隔线） ---------- */
section.block { padding: 48px 0; }
section.block.tight { padding: 32px 0; }
.block h2 { font-size: 20px; line-height: 28px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-xs); }
.block .lead { color: var(--fg-secondary); font-size: 14px; margin-bottom: var(--pad); }

/* ---------- 卡片（白底 + 1px 细描边，无投影） ---------- */
.grid { display: grid; gap: var(--gap-md); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--pad);
}
.card h3 { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-xs); }
.card p { font-size: 14px; color: var(--fg-secondary); }
.card .num { font-size: 28px; line-height: 36px; font-weight: 600; color: var(--fg); }
.card .icon { margin-bottom: var(--gap-sm); }
.card .icon svg { width: 20px; height: 20px; }
.card.soft { background: var(--sunken); border-color: transparent; }

/* 类目图标着色（彩色板着色本体，不做底色块） */
.icon.c-blue { color: #3070f0; }
.icon.c-green { color: #9deb63; }
.icon.c-purple { color: #c39efd; }
.icon.c-orange { color: #ff9500; }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--gap-xs); }
.chip {
  background: var(--panel); border: 1px solid var(--border-input);
  border-radius: var(--pill); padding: 6px 14px;
  font-size: 14px; color: var(--fg);
}
.chip.pending { color: var(--fg-caption); }

/* ---------- 对话演示（YouMind 式：AI 无气泡，用户灰胶囊） ---------- */
.duo {
  display: grid; grid-template-columns: 1fr 1fr;
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); overflow: hidden;
}
.duo > div { padding: var(--pad); }
.duo > div + div { border-left: 1px solid var(--divider); }
.duo h4 {
  font-size: 12px; line-height: 16px; font-weight: 400;
  color: var(--fg-caption); margin-bottom: var(--gap-md);
}
.duo ul { list-style: none; }

/* 左：列表行（任务列表式） */
.duo .board li {
  display: flex; justify-content: space-between; gap: var(--gap-sm); align-items: center;
  min-height: 40px; padding: 10px 12px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--fg);
}
.duo .board li:hover { background: var(--hover); }
.duo .board li + li { border-top: 1px solid var(--divider); }
.duo .board .tag { font-size: 12px; color: var(--fg-secondary); white-space: nowrap; }

/* 右：对话画布 */
.duo .chat li { margin-bottom: var(--gap-md); }
.duo .chat li.you {
  background: var(--select); border-radius: var(--radius-xl);
  padding: 10px 16px; width: fit-content; max-width: 75%; margin-left: auto;
  font-size: 15px; line-height: 1.6; color: var(--fg);
}
.duo .chat li.ai { font-size: 15px; line-height: 1.6; color: var(--fg); }
.duo .chat li.ai::before {
  content: "✦"; display: block; font-size: 14px; color: var(--fg); margin-bottom: var(--micro);
}
.duo .chat li b { font-weight: 600; }

/* ---------- 表格 ---------- */
table.tbl {
  width: 100%; border-collapse: collapse;
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); overflow: hidden;
  font-size: 14px;
}
.tbl th {
  font-size: 12px; line-height: 16px; font-weight: 400; color: var(--fg-secondary);
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--divider);
}
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--divider); color: var(--fg); }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: var(--hover); }
.tbl .ok { color: var(--fg); }
.tbl .ok::before { content: "✓ "; color: var(--primary); font-weight: 600; }

/* ---------- 定价 ---------- */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-md); align-items: stretch; }
.plan {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: var(--pad);
  display: flex; flex-direction: column;
}
.plan.hot { border-color: var(--border); }
.plan .name { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); }
.plan .badge {
  display: inline-block; background: var(--primary-soft); color: var(--primary);
  font-size: 12px; line-height: 16px; border-radius: var(--radius-xs); padding: 2px 8px;
  margin-left: var(--gap-xs); vertical-align: middle;
}
.plan .price { font-size: 28px; line-height: 36px; font-weight: 600; color: var(--fg); margin: var(--gap-sm) 0 2px; }
.plan .price .was { font-size: 14px; color: var(--fg-caption); text-decoration: line-through; font-weight: 400; margin-left: var(--gap-xs); }
.plan .price small { font-size: 12px; color: var(--fg-secondary); font-weight: 400; }
.plan .desc { font-size: 14px; color: var(--fg-secondary); margin-bottom: var(--gap-md); }
.plan ul { list-style: none; flex: 1; margin-bottom: var(--pad); }
.plan li { font-size: 14px; padding: 6px 0; color: var(--fg); border-bottom: 1px solid var(--divider); }
.plan li:last-child { border-bottom: none; }
.plan li::before { content: "✓ "; color: var(--primary); font-weight: 600; }

/* ---------- 步骤 ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-md); }
.step {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: var(--pad); counter-increment: step;
}
.step::before {
  content: counter(step);
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: var(--pill);
  background: var(--select); color: var(--fg); font-weight: 600; font-size: 12px;
  margin-bottom: var(--gap-sm);
}
.step h3 { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); margin-bottom: var(--micro); }
.step p { font-size: 14px; color: var(--fg-secondary); }

/* ---------- 尾部 CTA(白面板，绿只给按钮) ---------- */
.cta-final {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 40px; text-align: center;
}
.cta-final h2 { font-size: 20px; line-height: 28px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-xs); }
.cta-final p { color: var(--fg-secondary); margin-bottom: var(--pad); font-size: 14px; }
.cta-final .btn { background: var(--primary); color: var(--primary-fg); }
.cta-final .btn:hover { background: var(--primary-hover); }

/* ---------- 表单 ---------- */
.form-card {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: var(--pad); max-width: 560px;
}
.form-card label {
  display: block; font-size: 12px; line-height: 16px; color: var(--fg-secondary);
  margin: var(--gap-md) 0 var(--gap-xs);
}
.form-card label:first-of-type { margin-top: 0; }
.form-card input, .form-card select, .form-card textarea {
  width: 100%; height: 36px; padding: 8px 12px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--border-input); border-radius: var(--radius-md);
  background: var(--panel); color: var(--fg); outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.form-card textarea { height: auto; }
.form-card input::placeholder, .form-card textarea::placeholder { color: var(--fg-caption); }
.form-card input:hover, .form-card select:hover, .form-card textarea:hover { border-color: var(--border); }
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-soft);
}
.form-card .btn { width: 100%; margin-top: var(--pad); }
.form-card .err-text { font-size: 12px; color: var(--error); margin-top: var(--gap-sm); }
.form-note { font-size: 12px; line-height: 16px; color: var(--fg-caption); margin-top: var(--gap-sm); text-align: center; }

/* 注册流程步骤条 */
.flow-steps { display: flex; gap: var(--gap-xs); margin-top: var(--pad); flex-wrap: wrap; }
.fs {
  font-size: 12px; line-height: 16px; color: var(--fg-secondary);
  background: var(--panel); border: 1px solid var(--border-input);
  border-radius: var(--pill); padding: 6px 14px;
}
.fs.on { background: var(--primary); border-color: var(--primary); color: var(--primary-fg); font-weight: 600; }
.demo-hint {
  background: var(--sunken); border-radius: var(--radius-md);
  padding: 10px 14px; font-size: 12px; line-height: 18px; color: var(--fg-secondary);
  margin: var(--gap-md) 0 var(--micro);
}
.demo-hint b { color: var(--fg); font-weight: 600; }

/* 成功态 */
.done-mark {
  width: 56px; height: 56px; border-radius: var(--pill);
  background: var(--primary-soft); color: var(--primary); font-size: 20px;
  display: flex; align-items: center; justify-content: center; margin: 6px auto var(--gap-md);
}

/* ---------- 页脚（灰底，分割线上方） ---------- */
footer.site { border-top: 1px solid var(--divider); margin-top: 48px; padding: 48px 0 36px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.foot-grid h4 { font-size: 12px; line-height: 16px; font-weight: 400; color: var(--fg-caption); margin-bottom: var(--gap-sm); }
.foot-grid a { display: block; font-size: 14px; color: var(--fg-secondary); padding: 4px 0; }
.foot-grid a:hover { color: var(--fg); text-decoration: none; }
.foot-brand p { font-size: 14px; color: var(--fg-secondary); max-width: 300px; margin-top: var(--gap-sm); }
.foot-bottom {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--divider);
  display: flex; justify-content: space-between; font-size: 12px; color: var(--fg-caption);
}

/* ---------- 响应式 ---------- */
/* 中窄桌面(900–1160):英文导航词长,压缩间距保单行不溢出 */
@media (max-width: 1160px) {
  .nav { gap: 12px; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 8px 7px; font-size: 13px; }
  .nav-cta .btn { padding: 0 12px; }
  .nav-cta .lang-switch svg { display: none; }
  .nav-cta .lang-switch select { max-width: 96px; }
}

@media (max-width: 900px) {
  .grid.cols-3, .grid.cols-4, .plans, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .duo { grid-template-columns: 1fr; }
  .duo > div + div { border-left: none; border-top: 1px solid var(--divider); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4, .plans, .steps { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
  body { overflow-x: hidden; }
  .wrap { padding: 0 16px; }
  .nav { gap: 10px; height: 56px; }
  .nav-cta { gap: 6px; }
  .nav .btn { height: 32px; padding: 0 12px; font-size: 13px; }
  .logo { font-size: 15px; }
  .logo img { width: 20px; height: 20px; }
  .nav-cta .lang-switch.compact select { max-width: 72px; }
  section.block { padding: 32px 0; }
  .page-hero { padding: 48px 0 16px; }
  .hero-photo h1 { font-size: 24px; line-height: 32px; }
  table.tbl { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .cta-final { padding: 32px 20px; }
  .form-card { padding: 20px; }
  .duo .chat li.you { max-width: 90%; }
  .foot-bottom { flex-direction: column; gap: 8px; }
}
@media (max-width: 480px) {
  .logo { font-size: 0; gap: 0; }
  .nav-cta .lang-switch.compact select { max-width: 64px; }
  .nav { gap: 8px; }
}

/* ---------- Use case 动效（进入视口播放，循环） ---------- */
.uc-stage {
  background: var(--sunken); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: 20px;
  position: relative; overflow: hidden;
}
.uc-icon {
  width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.75;
  fill: none; stroke-linecap: round; stroke-linejoin: round; flex: none;
}

/* 渠道汇入（大） */
.uc-stage-channels { display: flex; gap: 20px; height: 300px; margin-bottom: var(--pad); }
.uc-chan-list { display: flex; flex-direction: column; gap: var(--gap-xs); flex: 0 0 148px; justify-content: center; }
.uc-chan {
  display: flex; align-items: center; gap: var(--gap-xs);
  padding: 8px 14px; border-radius: var(--pill);
  border: 1px solid var(--border-subtle); background: var(--panel);
  font-size: 12px; color: var(--fg-secondary);
  transition: border-color .3s, color .3s, background .3s, transform .3s;
}
.uc-chan.lit {
  border-color: var(--primary); color: var(--primary);
  background: var(--primary-soft); transform: translateX(4px);
}
.uc-inbox {
  flex: 1; min-width: 0; background: var(--panel);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
  display: flex; flex-direction: column; overflow: hidden;
}
.uc-inbox-bar {
  display: flex; align-items: center; gap: var(--gap-xs);
  padding: 10px 16px; border-bottom: 1px solid var(--divider);
  font-size: 12px; color: var(--fg-caption);
}
.uc-inbox-bar .uc-dots { display: flex; gap: 5px; }
.uc-inbox-bar .uc-dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--divider); display: block; }
.uc-inbox-feed { flex: 1; padding: var(--gap-sm); display: flex; flex-direction: column; gap: var(--gap-xs); overflow: hidden; }
.uc-msg {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle); background: var(--panel);
  opacity: 0; transform: translateY(14px) scale(.97);
  transition: opacity .45s, transform .45s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-msg.on { opacity: 1; transform: none; }
.uc-msg .uc-m-ic {
  width: 28px; height: 28px; border-radius: var(--radius-sm); flex: none;
  display: grid; place-items: center;
  background: var(--sunken); color: var(--fg-secondary);
}
.uc-msg .uc-m-body { flex: 1; min-width: 0; }
.uc-msg .uc-m-line { display: block; font-size: 12px; color: var(--fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.uc-msg .uc-m-meta { display: block; font-size: 12px; color: var(--fg-caption); margin-top: 2px; }
.uc-tag {
  font-size: 12px; line-height: 18px; padding: 0 8px; border-radius: var(--pill);
  flex: none; align-self: center;
  opacity: 0; transform: scale(.6);
  transition: opacity .3s, transform .3s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-tag.on { opacity: 1; transform: none; }
.uc-tag.bug    { background: rgba(244, 98, 115, .12); color: #c53040; }
.uc-tag.idea   { background: rgba(0, 99, 219, .10); color: var(--link); }
.uc-tag.praise { background: var(--primary-soft); color: var(--primary); }

/* AI 分诊（中） */
.uc-stage-triage { height: 240px; display: flex; flex-direction: column; justify-content: center; gap: var(--gap-sm); }
.uc-triage-msg {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 12px 14px;
  font-size: 14px; color: var(--fg); position: relative; overflow: hidden;
  opacity: 0; transform: translateY(12px);
  transition: opacity .4s, transform .4s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-triage-msg.on { opacity: 1; transform: none; }
.uc-triage-msg .uc-who { font-size: 12px; color: var(--fg-caption); margin-bottom: 4px; }
.uc-scanline {
  position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(0, 79, 45, .10) 50%, transparent 70%);
  background-size: 220% 100%; background-position: 120% 0;
}
.uc-scanline.run { opacity: 1; animation: uc-scan 1.1s ease 1 both; }
@keyframes uc-scan { from { background-position: 120% 0; } to { background-position: -120% 0; } }
.uc-chips { display: flex; flex-wrap: wrap; gap: var(--gap-xs); min-height: 26px; }
.uc-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; line-height: 24px; padding: 0 12px;
  border-radius: var(--pill); border: 1px solid var(--border-subtle); background: var(--panel);
  opacity: 0; transform: translateY(8px) scale(.8);
  transition: opacity .35s, transform .35s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-chip.on { opacity: 1; transform: none; }
.uc-chip .uc-icon { width: 13px; height: 13px; }
.uc-chip.c-bug { color: #c53040; border-color: rgba(244, 98, 115, .35); }
.uc-chip.c-pri { color: var(--warning); border-color: rgba(255, 149, 0, .35); }
.uc-chip.c-dup { color: var(--link); border-color: rgba(0, 99, 219, .30); }
.uc-done-row {
  display: flex; align-items: center; gap: var(--gap-xs);
  font-size: 12px; color: var(--primary);
  opacity: 0; transform: translateY(8px);
  transition: opacity .35s, transform .35s;
}
.uc-done-row.on { opacity: 1; transform: none; }
.uc-done-row .uc-ck {
  width: 18px; height: 18px; border-radius: 50%; background: var(--primary);
  color: var(--primary-fg); display: grid; place-items: center;
}
.uc-done-row .uc-ck .uc-icon { width: 11px; height: 11px; stroke-width: 2.5; }

/* 即时回复（中） */
.uc-stage-reply { min-height: 240px; display: flex; flex-direction: column; justify-content: center; gap: var(--gap-sm); }
.uc-review {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 12px 14px;
  opacity: 0; transform: translateY(12px);
  transition: opacity .4s, transform .4s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-review.on { opacity: 1; transform: none; }
.uc-review .uc-stars { display: flex; gap: 2px; color: var(--warning); margin-bottom: 4px; }
.uc-review .uc-stars .uc-icon { width: 13px; height: 13px; }
.uc-review .uc-stars .uc-icon.filled { fill: currentColor; }
.uc-review p { font-size: 14px; color: var(--fg); }
.uc-review .uc-who { font-size: 12px; color: var(--fg-caption); margin-top: 4px; }
.uc-typing {
  display: inline-flex; gap: 4px; align-items: center;
  padding: 8px 14px; border-radius: var(--pill);
  background: var(--panel); border: 1px solid var(--border-subtle);
  align-self: flex-start;
  opacity: 0; transform: scale(.8);
  transition: opacity .3s, transform .3s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-typing.on { opacity: 1; transform: none; }
.uc-typing i {
  width: 5px; height: 5px; border-radius: 50%; background: var(--fg-caption);
  animation: uc-blink 1s infinite;
}
.uc-typing i:nth-child(2) { animation-delay: .15s; }
.uc-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes uc-blink { 0%, 60%, 100% { opacity: .3; } 30% { opacity: 1; } }
.uc-reply {
  background: var(--primary-soft); border: 1px solid rgba(0, 79, 45, .15);
  border-radius: var(--radius-md); padding: 12px 14px;
  font-size: 14px; color: var(--fg); min-height: 64px;
  opacity: 0; transform: translateY(12px);
  transition: opacity .4s, transform .4s cubic-bezier(.2, .9, .3, 1.2);
}
.uc-reply.on { opacity: 1; transform: none; }
.uc-reply .uc-who { font-size: 12px; color: var(--primary); margin-bottom: 4px; font-weight: 600; }
.uc-reply.typing-txt .uc-txt::after { content: "▍"; color: var(--primary); animation: uc-blink 1s infinite; }

@media (max-width: 900px) {
  .hero-photo { min-height: 0; padding: 48px 0; }
  .hero-photo-inner { flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 32px; }
  .hero-chat { flex: none; width: 100%; max-width: 420px; min-height: 0; margin-right: 0; }
  .hero-photo .actions { flex-wrap: wrap; }
}
@media (max-width: 700px) {
  .uc-stage-channels { flex-direction: column; height: auto; }
  .uc-chan-list { flex-direction: row; flex-wrap: wrap; flex: none; }
}
@media (prefers-reduced-motion: reduce) {
  .uc-msg, .uc-tag, .uc-triage-msg, .uc-chip, .uc-done-row, .uc-review,
  .uc-typing, .uc-reply, .uc-chan,
  .hc-user, .hc-agent, .hc-widget, .hc-confirm, .hc-opt
  { transition: none !important; animation: none !important; }
  .uc-scanline.run { animation: none !important; opacity: 0; }
}

/* ---- 语言切换器（i18n.js 注入 header .nav-cta 与 footer .lang-slot） ---- */
.lang-switch{display:inline-flex;align-items:center;gap:6px;color:var(--fg-secondary,rgba(0,0,0,.55));font-size:13px}
.lang-switch svg{flex:none}
.lang-switch select{border:none;background:transparent;color:inherit;font:inherit;font-size:13px;cursor:pointer;max-width:140px;padding:2px 0;outline:none}
.nav-cta .lang-switch.compact{margin-right:6px}
@media (max-width:720px){.nav-cta .lang-switch.compact select{max-width:96px}}

/* ---------- 法律文本长文排版（privacy / terms） ---------- */
.legal { max-width: 840px; }
.legal h1 { font-size: 20px; line-height: 28px; font-weight: 600; color: var(--fg); margin: 0 0 var(--gap-md); }
.legal h2 { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); margin: 32px 0 var(--gap-xs); }
.legal h3 { font-size: 14px; line-height: 20px; font-weight: 600; color: var(--fg); margin: 20px 0 var(--gap-xs); }
.legal p, .legal li { font-size: 14px; line-height: 1.8; color: var(--fg-secondary); }
.legal p { margin: 0 0 var(--gap-sm); }
.legal ul, .legal ol { margin: 0 0 var(--gap-sm); padding-left: 22px; }
.legal li { margin-bottom: 4px; }
.legal b { color: var(--fg); font-weight: 600; }
.legal blockquote {
  background: var(--sunken); border-radius: var(--radius-md);
  padding: 12px 16px; margin: 0 0 var(--gap-md);
  font-size: 13px; line-height: 1.8; color: var(--fg-secondary);
}
.legal hr { border: none; border-top: 1px solid var(--divider); margin: 24px 0; }
.legal table {
  width: 100%; border-collapse: collapse; margin: 0 0 var(--gap-md);
  font-size: 13px; background: var(--panel);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden;
}
.legal th { font-weight: 600; color: var(--fg); background: var(--sunken); }
.legal th, .legal td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--divider); color: var(--fg-secondary); vertical-align: top; }
.legal tr:last-child td { border-bottom: none; }
.legal code { background: var(--sunken); border-radius: 4px; padding: 1px 5px; font-size: 12px; }
@media (max-width: 600px) {
  .legal table { display: block; overflow-x: auto; }
}

/* ============================================================
 * Resource Center（/resources /blog /docs）—— 沿用森林绿浅色主题
 * ============================================================ */

/* footer 四列（加了「资源」列） */
.foot-grid-4 { grid-template-columns: 1.6fr 1fr 1fr 1fr; }

/* 面包屑 */
.breadcrumb-wrap { margin-bottom: var(--gap-sm); }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 12px; color: var(--fg-caption); }
.breadcrumb a { color: var(--fg-secondary); }
.breadcrumb a:hover { color: var(--fg); text-decoration: none; }
.breadcrumb .bc-sep { color: var(--fg-disabled); }
.breadcrumb span[aria-current] { color: var(--fg-caption); max-width: 60ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sect-label { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-md); }

/* 分类徽章 */
.cat-badge {
  display: inline-flex; align-items: center; align-self: flex-start;
  font-size: 12px; line-height: 18px; padding: 1px 10px; border-radius: var(--pill);
  border: 1px solid var(--border-subtle); background: var(--panel); color: var(--fg-secondary);
}
.cat-badge.cat-guide { color: var(--primary); background: var(--primary-soft); border-color: transparent; }
.cat-badge.cat-tutorial { color: var(--link); background: rgba(0, 99, 219, .10); border-color: transparent; }
.cat-badge.cat-deepdive { color: #7a52d6; background: rgba(122, 82, 214, .10); border-color: transparent; }
.cat-badge.cat-playbook { color: var(--warning); background: rgba(255, 149, 0, .12); border-color: transparent; }
.cat-badge.cat-story { color: #c53040; background: rgba(244, 98, 115, .12); border-color: transparent; }

/* 封面渐变（无图时的品牌占位，避免 CLS） */
.cover-1 { background: linear-gradient(135deg, #004f2d 0%, #0a7d49 100%); }
.cover-2 { background: linear-gradient(135deg, #0a5f6b 0%, #1e8fa8 100%); }
.cover-3 { background: linear-gradient(135deg, #3a3a6a 0%, #6b5bd0 100%); }
.cover-4 { background: linear-gradient(135deg, #7a4f10 0%, #d6912b 100%); }
.cover-5 { background: linear-gradient(135deg, #6a2036 0%, #c04a58 100%); }

/* Blog 卡片网格 */
.post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-md); }
.post-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
  color: var(--fg); transition: border-color 180ms ease, transform 180ms ease;
}
.post-card:hover { border-color: var(--border); text-decoration: none; transform: translateY(-2px); }
.post-cover { display: block; height: 150px; background-size: cover; background-position: center; }
.post-body { display: flex; flex-direction: column; gap: var(--gap-xs); padding: var(--pad); }
.post-title { font-size: 16px; line-height: 22px; font-weight: 600; color: var(--fg); }
.post-excerpt { font-size: 13px; line-height: 1.6; color: var(--fg-secondary); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-meta { font-size: 12px; color: var(--fg-caption); }

/* 置顶特稿：横向大卡 */
.blog-featured { margin-bottom: var(--pad); }
.post-card.featured { flex-direction: row; }
.post-card.featured .post-cover { height: auto; width: 42%; min-height: 220px; flex: none; }
.post-card.featured .post-body { justify-content: center; gap: var(--gap-sm); }
.post-card.featured .post-title { font-size: 22px; line-height: 30px; }
.post-card.featured .post-excerpt { -webkit-line-clamp: 3; font-size: 14px; }

/* 文章正文页 */
.article-wrap { max-width: 760px; }
.article-hero { height: 200px; border-radius: var(--radius-lg); margin-bottom: var(--pad); background-size: cover; background-position: center; }
.article-head { margin-bottom: var(--pad); display: flex; flex-direction: column; gap: var(--gap-sm); }
.article-head h1 { font-size: 28px; line-height: 36px; font-weight: 650; color: var(--fg); }
.article-lede { font-size: 16px; line-height: 1.6; color: var(--fg-secondary); }

.article-body { font-size: 15px; line-height: 1.78; color: var(--fg-secondary); }
.article-body > *:first-child { margin-top: 0; }
.article-body h2 { font-size: 20px; line-height: 28px; font-weight: 600; color: var(--fg); margin: 36px 0 12px; scroll-margin-top: 24px; }
.article-body h3 { font-size: 16px; line-height: 24px; font-weight: 600; color: var(--fg); margin: 28px 0 10px; scroll-margin-top: 24px; }
.article-body h4 { font-size: 14px; line-height: 20px; font-weight: 600; color: var(--fg); margin: 20px 0 8px; }
.article-body p { margin: 0 0 16px; }
.article-body a { color: var(--primary); text-decoration: underline; text-decoration-color: rgba(0, 79, 45, .3); text-underline-offset: 2px; }
.article-body a:hover { text-decoration-color: var(--primary); }
.article-body strong { color: var(--fg); font-weight: 600; }
.article-body em { font-style: italic; }
.article-list { margin: 0 0 16px; padding-left: 22px; }
.article-list li { margin-bottom: 6px; }
.article-list li::marker { color: rgba(0, 79, 45, .55); }
.article-list .article-list { margin: 6px 0 4px; }
.article-body blockquote {
  border-left: 3px solid var(--primary); background: var(--primary-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 12px 16px; margin: 0 0 20px; color: var(--fg);
}
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-code {
  background: var(--sunken); border: 1px solid var(--border-subtle); border-radius: 5px;
  padding: 1px 6px; font-size: .88em; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--primary);
}
.article-pre {
  background: var(--sunken); border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
  padding: 16px; overflow-x: auto; margin: 0 0 20px; -webkit-overflow-scrolling: touch;
}
.article-pre code { background: none; border: none; padding: 0; color: var(--fg); font-size: 13px; line-height: 1.6; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.article-body hr { border: none; border-top: 1px solid var(--divider); margin: 28px 0; }
.article-body .table-wrap { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); -webkit-overflow-scrolling: touch; }
.article-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.article-table th { text-align: left; font-weight: 600; color: var(--fg); background: var(--sunken); padding: 10px 12px; border-bottom: 1px solid var(--divider); white-space: nowrap; }
.article-table td { padding: 10px 12px; border-bottom: 1px solid var(--divider); color: var(--fg-secondary); vertical-align: top; }
.article-table tr:last-child td { border-bottom: none; }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); margin: 0 0 20px; }

/* 相关文档 / 上下篇 / 文末 CTA */
.related-docs { margin: 32px 0 0; padding: var(--pad); background: var(--sunken); border-radius: var(--radius-lg); }
.related-docs h3 { font-size: 14px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-xs); }
.related-docs .article-list { margin: 0; }
.prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-md); margin: 32px 0; }
.pn {
  display: flex; flex-direction: column; gap: 4px; padding: var(--gap-md);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-md); color: var(--fg);
}
.pn:hover { border-color: var(--border); text-decoration: none; }
.pn.next { text-align: right; }
.pn-dir { font-size: 12px; color: var(--fg-caption); }
.pn-title { font-size: 14px; font-weight: 600; color: var(--fg); }
.article-cta { margin-top: 40px; }
.article-cta .btn-ghost { margin-left: var(--gap-xs); }

/* Docs 索引分区卡 */
.doc-sect-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-md); }
.doc-sect-card { background: var(--panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: var(--pad); }
.doc-sect-card h3 { font-size: 15px; font-weight: 600; color: var(--fg); margin-bottom: var(--gap-sm); }
.doc-sect-en { font-size: 12px; font-weight: 400; color: var(--fg-caption); margin-left: 4px; }
.doc-sect-card .article-list { margin: 0; padding-left: 0; list-style: none; }
.doc-sect-card .article-list li { margin-bottom: 8px; }
.doc-sect-card .article-list a { color: var(--fg-secondary); font-size: 14px; }
.doc-sect-card .article-list a:hover { color: var(--primary); text-decoration: none; }

/* Docs 详情：侧栏 + 正文 */
.doc-layout { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 44px; align-items: start; }
.doc-sidebar { position: sticky; top: 24px; align-self: start; max-height: calc(100vh - 48px); overflow-y: auto; }
.doc-nav-sect { margin-bottom: var(--gap-md); }
.doc-nav-title { font-size: 12px; font-weight: 600; color: var(--fg-caption); text-transform: none; margin-bottom: 6px; }
.doc-nav a { display: block; font-size: 13px; line-height: 1.5; color: var(--fg-secondary); padding: 5px 10px; border-radius: var(--radius-sm); }
.doc-nav a:hover { background: var(--hover); color: var(--fg); text-decoration: none; }
.doc-nav a.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.doc-main { min-width: 0; }
.doc-eyebrow { font-size: 12px; color: var(--primary); font-weight: 600; margin-bottom: var(--gap-xs); }
.doc-main h1 { font-size: 26px; line-height: 34px; font-weight: 650; color: var(--fg); margin-bottom: var(--gap-sm); }
.doc-foot-cta { display: flex; align-items: center; gap: var(--gap-sm); flex-wrap: wrap; margin-top: 32px; padding-top: var(--pad); border-top: 1px solid var(--divider); font-size: 14px; color: var(--fg-secondary); }

/* Resources Hub */
.hub-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-md); }
.hub-card { display: flex; flex-direction: column; gap: var(--gap-xs); padding: var(--pad); background: var(--panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); color: var(--fg); transition: border-color 180ms ease, transform 180ms ease; }
.hub-card:hover { border-color: var(--border); text-decoration: none; transform: translateY(-2px); }
.hub-tag { font-size: 11px; letter-spacing: .04em; text-transform: uppercase; color: var(--primary); font-weight: 600; }
.hub-t { font-size: 17px; font-weight: 600; color: var(--fg); }
.hub-d { font-size: 13px; line-height: 1.6; color: var(--fg-secondary); }
.start-docs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-md); }
.start-doc { display: flex; flex-direction: column; gap: 4px; padding: var(--gap-md) var(--pad); background: var(--sunken); border-radius: var(--radius-md); color: var(--fg); }
.start-doc:hover { background: var(--primary-soft); text-decoration: none; }
.start-doc-t { font-size: 14px; font-weight: 600; color: var(--fg); }
.start-doc-d { font-size: 13px; line-height: 1.5; color: var(--fg-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Resource Center 响应式 */
@media (max-width: 900px) {
  .foot-grid-4 { grid-template-columns: 1fr 1fr; }
  .post-grid, .doc-sect-grid, .hub-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .doc-layout { grid-template-columns: 1fr; gap: var(--gap-md); }
  .doc-sidebar { position: static; max-height: none; border-bottom: 1px solid var(--divider); padding-bottom: var(--gap-md); }
  .doc-nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .doc-nav-sect { margin-bottom: 0; }
  .doc-nav-title { width: 100%; }
}
@media (max-width: 600px) {
  .foot-grid-4 { grid-template-columns: 1fr 1fr; }
  .post-grid, .doc-sect-grid, .hub-grid, .start-docs, .prevnext { grid-template-columns: 1fr; }
  .post-card.featured { flex-direction: column; }
  .post-card.featured .post-cover { width: 100%; min-height: 160px; height: 160px; }
  .post-card.featured .post-title { font-size: 19px; line-height: 26px; }
  .article-head h1 { font-size: 24px; line-height: 32px; }
  .pn.next { text-align: left; }
}

/* 双语：zh↔en 语言切换 toggle（注入 nav-cta，替代 10 语切换器） */
.lang-toggle {
  display: inline-flex; align-items: center; height: 36px; padding: 0 10px;
  font-size: 13px; font-weight: 500; color: var(--fg-secondary);
  border: 1px solid var(--border-input); border-radius: var(--pill);
}
.lang-toggle:hover { color: var(--fg); border-color: var(--border); background: var(--hover); text-decoration: none; }
@media (max-width: 600px) { .lang-toggle { height: 32px; padding: 0 9px; font-size: 12px; } }

/* Blog 分类筛选 chip */
.cat-filter { display: flex; flex-wrap: wrap; gap: var(--gap-xs); margin-bottom: var(--pad); }
.cat-chip {
  font-family: var(--sans); font-size: 13px; color: var(--fg-secondary);
  background: var(--panel); border: 1px solid var(--border-input);
  border-radius: var(--pill); padding: 6px 14px; cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.cat-chip:hover { border-color: var(--border); color: var(--fg); }
.cat-chip.active { background: var(--primary); border-color: var(--primary); color: var(--primary-fg); font-weight: 600; }

/* ===== 官网登录态(session.js 渲染,demo 8b8d21bc) ===== */
.acct-chip {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 10px 0 4px; border-radius: var(--pill);
  background: var(--panel, #fff); border: 1px solid var(--border-subtle, rgba(31,31,31,.12));
  cursor: pointer; white-space: nowrap;
}
.acct-ava {
  width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600; flex: none;
}
.acct-pill {
  font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: var(--pill);
  background: #e8f3ec; color: var(--primary);
}
.acct-pill.warn { background: #fff0e0; color: #9a5b00; }
.acct-menu { position: absolute; top: 100%; right: 0; padding-top: 6px; display: none; z-index: 60; }
.acct-chip:hover .acct-menu, .acct-chip:focus-within .acct-menu { display: block; }
.acct-menu-panel {
  display: block; min-width: 200px; background: #fff; border: 1px solid rgba(31,31,31,.12);
  border-radius: 12px; padding: 6px; box-shadow: 0 4px 16px rgba(2,4,26,.08);
}
.acct-menu-mail {
  display: block; font-size: 12px; color: rgba(0,0,0,.4);
  padding: 8px 10px 6px; border-bottom: 1px solid rgba(31,31,31,.07); margin-bottom: 4px;
}
.acct-logout {
  display: block; width: 100%; text-align: left; font: inherit; font-size: 13px;
  color: #d92d20; background: none; border: none; border-radius: 8px;
  padding: 8px 10px; cursor: pointer;
}
.acct-logout:hover { background: rgba(217,45,32,.06); }
.acct-modal {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  background: rgba(2,4,26,.32); padding: 24px;
}
.acct-modal[hidden] { display: none; }
.acct-modal-panel {
  width: 340px; max-width: 100%; background: #fff; border-radius: 16px;
  padding: 22px 22px 18px; box-shadow: 0 4px 16px rgba(2,4,26,.08);
}
.acct-modal-title { font-size: 16px; font-weight: 650; color: var(--fg); margin-bottom: 8px; }
.acct-modal-text { font-size: 13px; line-height: 1.7; color: var(--fg-secondary); margin-bottom: 18px; }
.acct-modal-actions { display: flex; gap: 10px; justify-content: flex-end; }
.btn.acct-danger { background: #d92d20; color: #fff; border: none; }
.btn.acct-danger:hover { background: #b42318; color: #fff; }
.member-strip {
  margin-top: 22px; display: inline-flex; align-items: center; gap: 12px;
  padding: 10px 16px 10px 10px; border-radius: 14px;
  background: rgba(24,17,10,.58); border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  font-size: 13px; color: rgba(255,255,255,.92); max-width: 100%; flex-wrap: wrap;
}
.member-strip .acct-ava { width: 28px; height: 28px; }
.member-strip b { font-weight: 600; color: #fff; }
.member-strip .sep { color: rgba(255,255,255,.4); }
.member-strip a { color: #cde9d9; text-decoration: underline; white-space: nowrap; }
.member-strip.warn { background: rgba(84,48,8,.66); border-color: rgba(255,190,110,.35); }
.member-strip.warn .acct-ava { background: #7a4a10; }
.acct-signed-note {
  font-size: 13px; line-height: 1.7; color: #9a5b00; background: #fff6ec;
  border-radius: 10px; padding: 10px 14px; margin-bottom: 14px;
}

/* ---------- Cookie 同意卡片（track.js 注入;打点方案开放问题 5） ----------
   非模态浮层:白板 + 细描边 + 浮层投影;两键等权(主操作绿仅给「接受」不构成
   诱导——「拒绝」为同排等大的 ghost 胶囊);入场 240ms 上浮,尊重 reduced-motion。 */
.lbc {
  position: fixed; left: var(--page-safe); bottom: var(--page-safe); z-index: 80;
  max-width: 400px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-overlay); padding: 18px 20px;
  opacity: 0; transform: translateY(12px);
  transition: opacity 240ms ease, transform 240ms cubic-bezier(.2, .7, .3, 1);
}
.lbc.lbc-in { opacity: 1; transform: none; }
.lbc-body {
  display: flex; gap: 10px; align-items: flex-start;
  color: var(--fg-secondary); font-size: 13px; line-height: 1.6;
}
.lbc-body svg { flex: none; margin-top: 2px; color: var(--fg-caption); }
.lbc-state { margin: 8px 0 0 26px; font-size: 12px; color: var(--fg-caption); }
.lbc-actions { display: flex; align-items: center; gap: var(--gap-xs); margin-top: 14px; }
.lbc-actions .btn { height: 32px; padding: 0 16px; font-size: 13px; }
.lbc-more { margin-left: auto; font-size: 12px; color: var(--fg-caption); }
.lbc-more:hover { color: var(--fg-secondary); }
.lbc-footlink {
  background: none; border: none; padding: 0; font: inherit; color: inherit;
  cursor: pointer;
}
.lbc-footlink:hover { text-decoration: underline; }
@media (max-width: 560px) {
  .lbc { left: 12px; right: 12px; bottom: 12px; max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  .lbc { transition: none; transform: none; }
}