:root {
  --bg: #F3F7F6;
  --bg-soft: #EAF1EF;
  --card: #FFFFFF;
  --card-2: #FAFCFB;
  --ink: #182420;
  --text: #182420;
  --text-2: #4E625C;
  --text-3: #7C8F88;
  --border: #E3EBE8;
  --border-soft: #EDF3F1;
  --brand: #3BB89F;
  --brand-deep: #23806C;
  --brand-soft: #E3F6F0;
  --brand-ring: rgba(59, 184, 159, .28);
  --ok: #2E9E6B;
  --ok-soft: #E6F5EE;
  --warn: #9A6B15;
  --warn-soft: #F9F1DF;
  --bad: #C0474E;
  --bad-soft: #FBEAEB;
  --info: #4C8DD6;
  --info-soft: #EAF2FB;
  --r: 12px;
  --r-sm: 9px;
  --r-lg: 20px;
  --sh-1: 0 1px 2px rgba(24, 36, 32, .04), 0 2px 10px rgba(24, 36, 32, .03);
  --sh-2: 0 4px 14px rgba(24, 36, 32, .06), 0 12px 32px rgba(24, 36, 32, .06);
  --header-h: 64px;
  --ease: cubic-bezier(.22, .8, .3, 1);
  --fs-xs: 12px;
  --fs-sm: 13px;
  --fs-md: 14px;
  --fs-base: 15px;
  --fs-lg: 16px;
  --fs-xl: 18px;
  --fs-2xl: 20px;
  --fs-3xl: 22px;
  --fs-hero: 28px;
}

html[data-theme="dark"] {
  --bg: #0E1513;
  --bg-soft: #131C1A;
  --card: #16211E;
  --card-2: #1B2825;
  --ink: #E6EFEB;
  --text: #E6EFEB;
  --text-2: #9FB3AC;
  --text-3: #6E827B;
  --border: rgba(255, 255, 255, .09);
  --border-soft: rgba(255, 255, 255, .05);
  --brand: #57D6B8;
  --brand-deep: #35B39B;
  --brand-soft: rgba(87, 214, 184, .13);
  --brand-ring: rgba(87, 214, 184, .3);
  --ok: #4FC48E;
  --ok-soft: rgba(79, 196, 142, .13);
  --warn: #D8A44C;
  --warn-soft: rgba(216, 164, 76, .13);
  --bad: #E07B81;
  --bad-soft: rgba(224, 123, 129, .13);
  --info: #7FAEE8;
  --info-soft: rgba(127, 174, 232, .13);
  --sh-1: 0 1px 2px rgba(0, 0, 0, .3);
  --sh-2: 0 6px 24px rgba(0, 0, 0, .38);
  --n0: #16211E;
  --n25: #18241F;
  --n50: #131C1A;
  --n100: #1B2825;
  --n150: #22312C;
  --n200: #2A3B35;
  --n300: #3A4E46;
  --n400: #6E827B;
  --n500: #8FA39B;
  --n600: #A9BCB4;
  --n700: #C6D5CF;
  --n800: #DCE7E2;
  --n900: #E6EFEB;
}

.yx-site { min-height: 100vh; display: flex; flex-direction: column; }
.yx-site > .container { flex: 1 0 auto; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--brand); color: #fff; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img { max-width: 100%; }
a { color: var(--brand-deep); }
html[data-theme="dark"] a { color: var(--brand); }
.num { font-variant-numeric: tabular-nums; }

.yx-header {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--header-h);
  background: var(--card);
  background: color-mix(in srgb, var(--card) 80%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(16px);
  backdrop-filter: saturate(1.6) blur(16px);
  border-bottom: 1px solid var(--border-soft);
  transition: box-shadow .25s var(--ease), background .25s var(--ease);
}
@supports not (backdrop-filter: blur(1px)) { .yx-header { background: var(--card); } }
.yx-header.scrolled, .yx-header.is-scrolled { box-shadow: var(--sh-1); }
.yx-header-in { height: 100%; display: flex; align-items: center; gap: 22px; }
.yx-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
.yx-brand img { width: 34px; height: 34px; object-fit: contain; }
.yx-brand-name { font-size:16px; font-weight: 700; color: var(--text); line-height: 1.2; }
.yx-brand-name small { display: block; font-size:12px; font-weight: 600; letter-spacing: .22em; color: var(--text-3); }
.yx-nav { display: flex; align-items: center; gap: 2px; margin: 0 auto; }
.yx-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size:14px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  transition: color .18s var(--ease), background .18s var(--ease);
}
.yx-nav a:hover { color: var(--text); background: var(--bg-soft); }
.yx-nav a.on { color: var(--brand-deep); background: var(--brand-soft); font-weight: 600; }
html[data-theme="dark"] .yx-nav a.on { color: var(--brand); }
.yx-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; margin-left: auto; }
.yx-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.yx-icon-btn:hover { background: var(--bg-soft); color: var(--text); }
.yx-badge-dot {
  position: absolute;
  top: 3px;
  right: 3px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--bad);
  color: #fff;
  font-size:12px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.yx-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 12px 0 5px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  text-decoration: none;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.yx-user-chip:hover { border-color: var(--brand-ring); box-shadow: 0 0 0 3px var(--brand-ring); }
.yx-user-ava {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff;
  font-size:13px;
  font-weight: 700;
}
.yx-user-nm { font-size:13px; font-weight: 600; color: var(--text); max-width: 86px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.yx-btn-sign {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border-radius: 999px;
  font-size:13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: var(--card);
  transition: all .18s var(--ease);
}
.yx-btn-sign:hover { border-color: var(--brand); color: var(--brand-deep); }
html[data-theme="dark"] .yx-btn-sign:hover { color: var(--brand); }
.yx-btn-sign.is-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.yx-btn-sign.is-primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; }
html[data-theme="dark"] .yx-btn-sign.is-primary:hover { background: var(--brand); border-color: var(--brand); }
.yx-menu-btn { display: none; }

.yx-announce {
  background: linear-gradient(90deg, var(--brand-soft), transparent 70%);
  border-bottom: 1px solid var(--border-soft);
}
.yx-announce-in { display: flex; align-items: center; gap: 10px; min-height: 42px; padding-top: 7px; padding-bottom: 7px; }
.yx-announce-icon { display: inline-flex; color: var(--brand-deep); flex: 0 0 auto; }
html[data-theme="dark"] .yx-announce-icon { color: var(--brand); }
.yx-announce-body { display: flex; align-items: baseline; gap: 10px; min-width: 0; flex-wrap: wrap; }
.yx-announce-body b { font-size:13px; color: var(--text); white-space: nowrap; }
.yx-announce-body span { font-size:13px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.yx-announce-link { margin-left: auto; font-size:13px; font-weight: 600; color: var(--brand-deep) !important; white-space: nowrap; }
html[data-theme="dark"] .yx-announce-link { color: var(--brand) !important; }
.yx-announce-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  flex: 0 0 auto;
}
.yx-announce-close:hover { background: var(--bg-soft); color: var(--text); }

.yx-drawer, .yx-drawer-mask { display: none; }
.yx-drawer {
  position: fixed;
  inset: 0;
  z-index: 1100;
  justify-content: flex-end;
  pointer-events: none;
  visibility: hidden;
}
.yx-drawer-mask {
  display: block;
  position: absolute;
  inset: 0;
  background: rgba(10, 18, 16, .45);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity .28s var(--ease);
}
.yx-drawer-panel {
  position: relative;
  width: min(320px, 86vw);
  height: 100%;
  background: var(--card);
  box-shadow: -12px 0 40px rgba(10, 18, 16, .18);
  display: flex;
  flex-direction: column;
  transform: translateX(102%);
  transition: transform .32s var(--ease);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.yx-drawer.open { pointer-events: auto; visibility: visible; display: flex; }
.yx-drawer.open .yx-drawer-mask { opacity: 1; }
.yx-drawer.open .yx-drawer-panel { transform: translateX(0); }
.yx-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.yx-drawer-title { font-weight: 700; font-size:15px; }
.yx-drawer-nav { padding: 10px 10px 0; }
.yx-drawer-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--r-sm);
  font-size:15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  opacity: 0;
  transform: translateX(14px);
}
.yx-drawer.open .yx-drawer-nav a { animation: yxDstagIn .3s var(--ease) forwards; }
.yx-drawer.open .yx-drawer-nav a:nth-child(1) { animation-delay: .04s }
.yx-drawer.open .yx-drawer-nav a:nth-child(2) { animation-delay: .07s }
.yx-drawer.open .yx-drawer-nav a:nth-child(3) { animation-delay: .1s }
.yx-drawer.open .yx-drawer-nav a:nth-child(4) { animation-delay: .13s }
.yx-drawer.open .yx-drawer-nav a:nth-child(5) { animation-delay: .16s }
.yx-drawer.open .yx-drawer-nav a:nth-child(6) { animation-delay: .19s }
.yx-drawer.open .yx-drawer-nav a:nth-child(7) { animation-delay: .22s }
.yx-drawer.open .yx-drawer-nav a:nth-child(8) { animation-delay: .25s }
.yx-drawer.open .yx-drawer-nav a:nth-child(9) { animation-delay: .28s }
@keyframes yxDstagIn { to { opacity: 1; transform: translateX(0); } }
.yx-drawer-nav a.on { background: var(--brand-soft); color: var(--brand-deep); font-weight: 600; }
html[data-theme="dark"] .yx-drawer-nav a.on { color: var(--brand); }
.yx-drawer-nav a svg { opacity: .4; }
.yx-drawer-foot { margin-top: auto; padding: 14px 16px 20px; border-top: 1px solid var(--border-soft); display: grid; gap: 8px; }
.yx-drawer-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 42px;
  padding: 0 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size:14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  width: 100%;
}
.yx-drawer-btn:hover { border-color: var(--brand-ring); background: var(--bg-soft); }
.yx-drawer-btn.is-primary { background: var(--brand); border-color: var(--brand); color: #fff; }

.yx-footer {
  margin-top: 64px;
  background: var(--card);
  border-top: 1px solid var(--border-soft);
}
.yf-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 48px 0 30px;
}
.yf-logo { display: flex; align-items: center; gap: 12px; }
.yf-logo img { width: 40px; height: 40px; object-fit: contain; }
.yf-logo b { display: block; font-size:16px; color: var(--text); line-height: 1.3; }
.yf-logo small { font-size:12px; letter-spacing: .2em; color: var(--text-3); }
.yf-brand p { margin: 14px 0 0; font-size:13px; color: var(--text-2); line-height: 1.9; }
.yf-social { display: flex; gap: 8px; margin-top: 16px; }
.yf-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: var(--card-2);
  transition: all .18s var(--ease);
}
.yf-social a:hover { color: var(--brand-deep); border-color: var(--brand-ring); transform: translateY(-2px); box-shadow: var(--sh-1); }
html[data-theme="dark"] .yf-social a:hover { color: var(--brand); }
.yf-col h4 {
  font-size:13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 6px 0 14px;
}
.yf-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.yf-col a { font-size:13px; color: var(--text-2); text-decoration: none; }
.yf-col a:hover { color: var(--brand-deep); }
html[data-theme="dark"] .yf-col a:hover { color: var(--brand); }
.yf-contact li { display: flex; align-items: center; gap: 8px; font-size:13px; color: var(--text-2); }
.yf-contact svg { color: var(--text-3); flex: 0 0 auto; }
.yf-friends {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 16px 0;
  border-top: 1px solid var(--border-soft);
  font-size:13px;
}
.yf-friends .t { color: var(--text-3); font-weight: 600; }
.yf-friends a { color: var(--text-2); text-decoration: none; }
.yf-friends a:hover { color: var(--brand-deep); }
html[data-theme="dark"] .yf-friends a:hover { color: var(--brand); }
.yf-none { opacity: .5; }
.yf-bottom { border-top: 1px solid var(--border-soft); background: var(--bg-soft); }
.yf-bottom-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 14px;
  padding-bottom: 14px;
  font-size:13px;
  color: var(--text-3);
}
.yf-bottom-links { display: inline-flex; gap: 16px; }
.yf-bottom a { color: var(--text-3); text-decoration: none; }
.yf-bottom a:hover { color: var(--brand-deep); }

.page-banner {
  background:
    radial-gradient(1200px 300px at 85% -60%, var(--brand-soft), transparent),
    var(--card);
  border-bottom: 1px solid var(--border-soft);
  padding: 40px 0 34px;
}
.page-banner h1, .page-banner .pb-title { margin: 0; font-size:28px; font-weight: 700; letter-spacing: .01em; }
.page-banner .breadcrumb { margin-top: 8px; font-size:13px; color: var(--text-3); }
.page-banner .breadcrumb a { color: var(--text-2); text-decoration: none; }
.page-banner .breadcrumb a:hover { color: var(--brand-deep); }

.article { font-size:15px; line-height: 2; color: var(--text); }
.article h1 { font-size:22px; line-height: 1.5; margin: 0 0 10px; letter-spacing: .01em; }
.article h2 { font-size:18px; margin: 34px 0 14px; padding-left: 12px; border-left: 3px solid var(--brand); }
.article h3 { font-size:16px; margin: 26px 0 12px; }
.article p { margin: 0 0 18px; }
.article img { border-radius: var(--r); box-shadow: var(--sh-1); }
.article blockquote {
  margin: 20px 0;
  padding: 14px 18px;
  background: var(--brand-soft);
  border-left: 3px solid var(--brand);
  border-radius: var(--r-sm);
  color: var(--text-2);
}
.article .meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size:13px; color: var(--text-3); margin: 6px 0 22px; padding-bottom: 18px; border-bottom: 1px solid var(--border-soft); }
.article .meta a { color: var(--text-2); text-decoration: none; }
.article .art-cat { padding: 2px 10px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-deep) !important; font-size:13px; font-weight: 600; }

.btn, .btn-primary, .btn-outline, .btn-lg {
  border-radius: 999px;
  font-weight: 600;
  transition: all .2s var(--ease);
}
.btn-primary, .btn.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff !important;
}
.btn-primary:hover, .btn.btn-primary:hover {
  background: var(--brand-deep);
  border-color: var(--brand-deep);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--brand-ring);
}
.btn-outline, .btn.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn-outline:hover, .btn.btn-outline:hover { border-color: var(--brand); color: var(--brand-deep); }
html[data-theme="dark"] .btn-outline:hover { color: var(--brand); }

.card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--r);
  box-shadow: var(--sh-1);
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.form-control {
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.form-control:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-ring);
  outline: none;
}
.alert { border-radius: var(--r-sm); border: 1px solid transparent; font-size:14px; }
.alert-success { background: var(--ok-soft); border-color: transparent; color: var(--ok); }
.alert-error, .alert-danger { background: var(--bad-soft); color: var(--bad); }
.alert-warning { background: var(--warn-soft); color: var(--warn); }
.alert-info { background: var(--info-soft); color: var(--info); }
.empty { color: var(--text-3); }
.pagination a, .pagination span { border-radius: var(--r-sm); }

.error-page { text-align: center; padding: 90px 0 70px; }
.error-page .code {
  font-size:28px;
  font-weight: 800;
  letter-spacing: .04em;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.nt-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 26px 0 18px; }
.nt-head h1 { margin: 0; font-size:22px; }
.nt-list { display: grid; gap: 10px; margin-bottom: 40px; }
.nt-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--r);
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.nt-item:hover { border-color: var(--brand-ring); box-shadow: var(--sh-1); }
.nt-item.is-unread { border-left: 3px solid var(--brand); background: linear-gradient(90deg, var(--brand-soft), var(--card) 30%); }
.nt-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--brand-deep);
  flex: 0 0 auto;
}
html[data-theme="dark"] .nt-ico { color: var(--brand); }
.nt-item b { display: block; font-size:14px; color: var(--text); }
.nt-item p { margin: 3px 0 0; font-size:13px; color: var(--text-2); line-height: 1.8; }
.nt-item time { margin-left: auto; flex: 0 0 auto; font-size:13px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.nt-empty { text-align: center; padding: 70px 0; color: var(--text-3); }
.nt-empty svg { opacity: .35; margin-bottom: 10px; }

.video-list-item { cursor: pointer; }
.video-list-item:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

@media (min-width: 861px) {
  .yx-menu-btn { display: none; }
}
@media (max-width: 860px) {
  .yx-nav { display: none; }
  .yx-menu-btn { display: inline-flex; }
  .yx-user-nm, .yx-actions .yx-btn-sign:not(.is-primary) { display: none; }
  .yx-header-in { gap: 10px; }
}