/* ============================================================
   雅博主页 · 共享样式 /assets/site.css
   体系：索引档案室 —— 刻度、编号、标签、说明牌、玻璃与实色并置
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root {
  --yb-blue: #1A5CFF;
  --yb-blue-deep: #0B3AB8;
  --yb-glass: #E6EDFF;
  --yb-signal: #00C2A8;
  --yb-signal-deep: #00806E;
  --yb-sand: #F5E9DA;
  --yb-ink: #101828;
  --yb-graphite: #475467;
  --yb-paper: #FBFCFE;
  --yb-line: #D0D5DD;

  --yb-font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --yb-font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --yb-font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;

  --yb-wrap: 1320px;
  --yb-gutter: clamp(16px, 4vw, 40px);
  --yb-radius: 2px;
  --yb-ease: cubic-bezier(.22, .61, .36, 1);
  --yb-header-h: 74px;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--yb-paper);
  color: var(--yb-ink);
  font-family: var(--yb-font-serif);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { padding: 0; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--yb-font-sans);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: .01em;
}

:focus-visible {
  outline: 2px solid var(--yb-blue);
  outline-offset: 3px;
  border-radius: 1px;
}

#main-content:focus-visible { outline-offset: -2px; }

/* ---------- 3. 工具类 ---------- */
.yb-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.yb-container {
  width: 100%;
  max-width: var(--yb-wrap);
  margin-inline: auto;
  padding-inline: var(--yb-gutter);
}

.yb-section { padding-block: clamp(48px, 7vw, 96px); }

.yb-rule {
  height: 1px;
  border: 0;
  background: var(--yb-line);
}

.yb-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--yb-signal-deep);
}
.yb-eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: currentColor;
}

.yb-display {
  font-family: var(--yb-font-sans);
  font-weight: 900;
  font-size: clamp(48px, 9vw, 128px);
  line-height: .92;
  letter-spacing: .04em;
  color: var(--yb-blue);
}

.yb-h2 {
  font-family: var(--yb-font-sans);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1.24;
  letter-spacing: .02em;
}

.yb-lead {
  max-width: 58ch;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.9;
  color: var(--yb-graphite);
}

.yb-prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.85;
}
.yb-prose p + p { margin-top: 1.1em; }
.yb-prose h2,
.yb-prose h3 { margin: 2em 0 .6em; }
.yb-prose ul,
.yb-prose ol { margin: 1em 0; padding-left: 1.4em; }
.yb-prose ul { list-style: disc; }
.yb-prose ol { list-style: decimal; }
.yb-prose li + li { margin-top: .4em; }

/* ---------- 4. 按钮与标签 ---------- */
.yb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 24px;
  font-family: var(--yb-font-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  border: 1px solid transparent;
  border-radius: var(--yb-radius);
  transition: background .16s var(--yb-ease), color .16s var(--yb-ease),
              border-color .16s var(--yb-ease), transform .16s var(--yb-ease);
}
.yb-btn--primary {
  background: var(--yb-blue);
  border-color: var(--yb-blue);
  color: #fff;
}
.yb-btn--primary:hover { background: var(--yb-blue-deep); border-color: var(--yb-blue-deep); }
.yb-btn--ghost {
  background: transparent;
  border-color: var(--yb-line);
  color: var(--yb-ink);
}
.yb-btn--ghost:hover {
  background: var(--yb-glass);
  border-color: var(--yb-blue);
  color: var(--yb-blue);
}
.yb-btn:active { transform: translateY(1px); }

.yb-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 10px;
  font-family: var(--yb-font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  line-height: 1;
  color: var(--yb-graphite);
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-radius);
  white-space: nowrap;
}
.yb-tag--version {
  color: var(--yb-blue-deep);
  border-color: rgba(26, 92, 255, .4);
  background: var(--yb-glass);
}
.yb-tag--new {
  color: var(--yb-signal-deep);
  border-color: rgba(0, 194, 168, .45);
  background: rgba(0, 194, 168, .1);
}
.yb-tag--new::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--yb-signal);
}

/* ---------- 5. 内容构件 ---------- */
.yb-card {
  position: relative;
  padding: clamp(20px, 2.4vw, 28px);
  background: #fff;
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-radius);
  transition: transform .16s var(--yb-ease), border-color .16s var(--yb-ease),
              box-shadow .16s var(--yb-ease);
}
.yb-card:hover {
  transform: translateY(-2px);
  border-color: var(--yb-blue);
  box-shadow: 0 12px 28px rgba(16, 24, 40, .08);
}

.yb-glass-panel {
  background: var(--yb-glass);
  border: 1px solid rgba(26, 92, 255, .16);
  border-radius: var(--yb-radius);
}
@supports ((backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px))) {
  .yb-glass-panel {
    background: rgba(230, 237, 255, .72);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
}

.yb-bleed-sand {
  background: var(--yb-sand);
  border-radius: var(--yb-radius);
}

.yb-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--yb-glass);
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-radius);
}
.yb-media--wide { aspect-ratio: 21 / 9; }
.yb-media--tall { aspect-ratio: 3 / 4; }
.yb-media--square { aspect-ratio: 1 / 1; }
.yb-media > img,
.yb-media > picture,
.yb-media > svg,
.yb-media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.yb-media__caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 9px;
  font-family: var(--yb-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  line-height: 1.5;
  color: #fff;
  background: rgba(16, 24, 40, .82);
  border-radius: var(--yb-radius);
}

.yb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--yb-graphite);
}
.yb-breadcrumb a { color: var(--yb-graphite); transition: color .16s var(--yb-ease); }
.yb-breadcrumb a:hover { color: var(--yb-blue); }
.yb-breadcrumb [aria-current="page"] { color: var(--yb-ink); }
.yb-breadcrumb__sep { color: var(--yb-line); }

.yb-index {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.yb-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  font-family: var(--yb-font-sans);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--yb-graphite);
  border-left: 2px solid transparent;
  transition: color .2s var(--yb-ease), background .2s var(--yb-ease),
              border-color .2s var(--yb-ease);
}
.yb-index__link:hover { color: var(--yb-blue); background: var(--yb-glass); }
.yb-index__link[aria-current="true"] {
  color: var(--yb-blue);
  font-weight: 700;
  background: var(--yb-glass);
  border-left-color: var(--yb-blue);
}

/* ---------- 6. 显现动效 ---------- */
.yb-js .yb-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .42s var(--yb-ease), transform .42s var(--yb-ease);
}
.yb-js .yb-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 7. 站点头部 ---------- */
.yb-skip {
  position: absolute;
  top: 0;
  left: 16px;
  z-index: 300;
  padding: 12px 20px;
  font-family: var(--yb-font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #fff;
  background: var(--yb-ink);
  border-radius: 0 0 var(--yb-radius) var(--yb-radius);
  transform: translateY(-140%);
  transition: transform .18s var(--yb-ease);
}
.yb-skip:focus,
.yb-skip:focus-visible { transform: translateY(0); }

.yb-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--yb-paper);
  border-bottom: 1px solid var(--yb-line);
}
@media (min-width: 961px) {
  @supports ((backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px))) {
    .yb-header {
      background: rgba(251, 252, 254, .86);
      -webkit-backdrop-filter: blur(12px) saturate(1.35);
      backdrop-filter: blur(12px) saturate(1.35);
    }
  }
}

.yb-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 36px);
  max-width: var(--yb-wrap);
  min-height: var(--yb-header-h);
  margin-inline: auto;
  padding: 12px var(--yb-gutter);
}

.yb-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}
.yb-brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  font-family: var(--yb-font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #fff;
  background: var(--yb-blue);
  border-radius: var(--yb-radius);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
}
.yb-brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.yb-brand__name {
  font-family: var(--yb-font-sans);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .08em;
  line-height: 1.15;
  color: var(--yb-ink);
}
.yb-brand__tagline {
  font-family: var(--yb-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  line-height: 1.3;
  color: var(--yb-graphite);
}

.yb-nav { margin-left: auto; }
.yb-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
}
.yb-nav__link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-family: var(--yb-font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--yb-ink);
  transition: color .16s var(--yb-ease);
}
.yb-nav__link::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 0;
  height: 2px;
  background: var(--yb-blue);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .2s var(--yb-ease);
}
.yb-nav__link:hover { color: var(--yb-blue); }
.yb-nav__link:hover::after { transform: scaleX(1); }
.yb-nav__link[aria-current="page"] {
  color: var(--yb-blue);
  font-weight: 700;
}
.yb-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.yb-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.yb-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  font-family: var(--yb-font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  white-space: nowrap;
  color: #fff;
  background: var(--yb-blue);
  border: 1px solid var(--yb-blue);
  border-radius: var(--yb-radius);
  transition: background .16s var(--yb-ease), border-color .16s var(--yb-ease),
              color .16s var(--yb-ease), transform .16s var(--yb-ease);
}
.yb-action:hover { background: var(--yb-blue-deep); border-color: var(--yb-blue-deep); }
.yb-action:active { transform: translateY(1px); }

.yb-action--icon {
  width: 38px;
  padding: 0;
  color: var(--yb-ink);
  background: transparent;
  border-color: var(--yb-line);
}
.yb-action--icon:hover {
  color: var(--yb-blue);
  background: var(--yb-glass);
  border-color: var(--yb-blue);
}

.yb-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  height: 38px;
  width: 42px;
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-radius);
  background: var(--yb-paper);
  transition: border-color .16s var(--yb-ease), background .16s var(--yb-ease);
}
.yb-nav-toggle:hover { border-color: var(--yb-blue); background: var(--yb-glass); }
.yb-nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}
.yb-nav-toggle__bars i {
  display: block;
  height: 2px;
  background: var(--yb-ink);
  transition: transform .2s var(--yb-ease), opacity .2s var(--yb-ease);
}
.yb-nav-toggle__bars i:nth-child(2) { width: 13px; }
.yb-nav-toggle[aria-expanded="true"] .yb-nav-toggle__bars i:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.yb-nav-toggle[aria-expanded="true"] .yb-nav-toggle__bars i:nth-child(2) { opacity: 0; }
.yb-nav-toggle[aria-expanded="true"] .yb-nav-toggle__bars i:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.yb-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.yb-progress > i {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--yb-blue), var(--yb-signal));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .1s linear;
}

/* ---------- 8. 站点页脚 ---------- */
.yb-footer {
  position: relative;
  background: var(--yb-ink);
  color: var(--yb-glass);
  font-family: var(--yb-font-sans);
  border-top: 4px solid var(--yb-blue);
}
.yb-footer::before {
  content: "";
  display: block;
  height: 8px;
  background: repeating-linear-gradient(90deg, rgba(230, 237, 255, .34) 0 1px, transparent 1px 14px);
}
.yb-footer :focus-visible { outline-color: var(--yb-signal); }

.yb-footer__inner {
  max-width: var(--yb-wrap);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) var(--yb-gutter) 28px;
}

.yb-footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(230, 237, 255, .16);
}
.yb-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.yb-footer__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-family: var(--yb-font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #fff;
  background: var(--yb-blue);
  border-radius: var(--yb-radius);
}
.yb-footer__wordmark {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .08em;
  color: #fff;
}
.yb-footer__tagline {
  margin-left: auto;
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(230, 237, 255, .66);
}

.yb-footer__persistent {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 20px;
  padding: 14px 18px;
  background: rgba(26, 92, 255, .18);
  border-left: 3px solid var(--yb-signal);
  border-radius: 0 var(--yb-radius) var(--yb-radius) 0;
}
.yb-footer__persistent-link {
  font-family: var(--yb-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: #fff;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(0, 194, 168, .5);
  transition: color .16s var(--yb-ease), border-color .16s var(--yb-ease);
}
.yb-footer__persistent-link:hover {
  color: var(--yb-signal);
  border-color: var(--yb-signal);
}
.yb-footer__persistent-sep {
  width: 1px;
  height: 14px;
  background: rgba(230, 237, 255, .3);
}

.yb-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  margin-top: clamp(28px, 4vw, 48px);
}
.yb-footer__title {
  margin-bottom: 14px;
  font-family: var(--yb-font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.5;
  color: var(--yb-signal);
}
.yb-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.yb-footer__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(230, 237, 255, .84);
  word-break: break-word;
}
.yb-footer__link {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(230, 237, 255, .84);
  transition: color .16s var(--yb-ease);
}
.yb-footer__link:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.yb-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  padding: 0 8px;
  font-family: var(--yb-font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  line-height: 1;
  color: var(--yb-signal);
  border: 1px solid rgba(0, 194, 168, .45);
  border-radius: var(--yb-radius);
  transition: background .16s var(--yb-ease), color .16s var(--yb-ease),
              border-color .16s var(--yb-ease);
}
.yb-copy:hover { background: rgba(0, 194, 168, .16); }
.yb-copy[data-copied="true"] {
  background: var(--yb-signal);
  border-color: var(--yb-signal);
  color: var(--yb-ink);
}
.yb-copy[data-copied="false"] {
  color: #fff;
  border-color: rgba(255, 255, 255, .5);
}

.yb-footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px solid rgba(230, 237, 255, .16);
  font-family: var(--yb-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(230, 237, 255, .58);
}
.yb-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
}
.yb-footer__legal a { transition: color .16s var(--yb-ease); }
.yb-footer__legal a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.yb-footer__meta { margin-left: auto; }

/* ---------- 9. 响应式 ---------- */
@media (max-width: 1080px) {
  .yb-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .yb-brand__tagline { display: none; }

  .yb-nav-toggle { display: inline-flex; }

  .yb-header__actions { margin-left: auto; }

  .yb-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 120;
    margin-left: 0;
    max-height: 82vh;
    overflow-y: auto;
    padding: 22px var(--yb-gutter) calc(22px + env(safe-area-inset-bottom));
    background: var(--yb-paper);
    border-top: 2px solid var(--yb-blue);
    box-shadow: 0 -18px 44px rgba(16, 24, 40, .16);
    transform: translateY(calc(100% + 16px));
    transition: transform .32s var(--yb-ease);
  }
  .yb-nav[data-open="true"] { transform: translateY(0); }

  .yb-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .yb-nav__item { border-bottom: 1px solid var(--yb-line); }
  .yb-nav__item:last-child { border-bottom: 0; }
  .yb-nav__link {
    display: block;
    padding: 16px 0;
    font-size: 16px;
    letter-spacing: .06em;
  }
  .yb-nav__link::after { display: none; }
  .yb-nav__link[aria-current="page"] {
    position: relative;
    padding-left: 22px;
  }
  .yb-nav__link[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    background: var(--yb-signal);
  }
}

@media (max-width: 560px) {
  html { scroll-padding-top: 84px; }
  .yb-header__inner { min-height: 64px; padding: 10px var(--yb-gutter); }
  .yb-brand__mark { width: 34px; height: 34px; font-size: 12px; }
  .yb-brand__name { font-size: 17px; }
  .yb-action { height: 34px; padding: 0 12px; font-size: 12.5px; }
  .yb-action--icon { width: 34px; padding: 0; }
  .yb-nav-toggle { height: 34px; width: 38px; }

  .yb-footer__grid { grid-template-columns: 1fr; }
  .yb-footer__tagline { margin-left: 0; width: 100%; }
  .yb-footer__meta { margin-left: 0; width: 100%; }
  .yb-footer__persistent { padding: 12px 14px; }
}

@media (max-width: 400px) {
  .yb-header__actions .yb-action--icon { display: none; }
}

/* ---------- 10. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0ms !important;
  }
  .yb-js .yb-reveal {
    opacity: 1 !important;
    transform: none !important;
  }
  .yb-card:hover { transform: none; }
}