/* ZENZAN V22 — partner carousel, proportioned after the approved reference */
.zz22-partner {
  --zz22-bg: #151515;
  --zz22-fg: #f5f3ee;
  --zz22-muted: #d8d5ce;
  --zz22-line: #8f8f8d;
  --zz22-accent: #c7a461;
  min-height: 800px;
  padding: 92px 5vw 42px;
  color: var(--zz22-fg);
  background: var(--zz22-bg);
  scroll-margin-top: 132px;
}

.zz22-partner-inner {
  width: min(1810px, 100%);
  min-height: 666px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(360px, .92fr) minmax(620px, 1.38fr);
  gap: clamp(54px, 6vw, 118px);
  align-items: center;
}

.zz22-partner-copy {
  max-width: 660px;
  padding-left: clamp(0px, 1.6vw, 28px);
}

.zz22-partner-label {
  margin: 0 0 32px;
  color: var(--zz22-fg);
  font: 500 20px/1.35 "Microsoft YaHei", "PingFang SC", sans-serif;
}

.zz22-partner h2 {
  max-width: 640px;
  margin: 0 0 30px;
  color: var(--zz22-fg);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: clamp(44px, 3.4vw, 64px);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -.035em;
}

.zz22-partner-body {
  max-width: 650px;
  margin: 0 0 48px;
  color: var(--zz22-muted);
  font: 400 18px/1.58 "Microsoft YaHei", "PingFang SC", sans-serif;
}

.zz22-partner-cta {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 27px;
  border: 1px solid rgba(255,255,255,.88);
  border-radius: 6px;
  color: #fff;
  font: 500 17px/1 "Microsoft YaHei", "PingFang SC", sans-serif;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease;
}

.zz22-partner-cta:hover,
.zz22-partner-cta:focus-visible {
  color: #151515;
  background: #fff;
  outline: none;
}

.zz22-partner-visual {
  position: relative;
  align-self: stretch;
  min-height: 666px;
  overflow: hidden;
  border-radius: 14px 0 0 14px;
}

.zz22-partner-slide {
  position: absolute;
  inset: 0 0 58px;
  margin: 0;
  opacity: 0;
  transform: translateX(2%);
  transition: opacity 700ms ease, transform 900ms cubic-bezier(.2,.7,.2,1);
  pointer-events: none;
}

.zz22-partner-slide.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.zz22-partner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.zz22-partner-slide:first-child img { object-position: 50% 50%; }
.zz22-partner-slide:nth-child(2) img { object-position: 50% 55%; }
.zz22-partner-slide:nth-child(3) img { object-position: 50% 48%; }

.zz22-partner-nav {
  position: absolute;
  z-index: 3;
  right: 40px;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(92px, 132px));
  gap: 22px;
}

.zz22-partner-nav button {
  position: relative;
  width: 100%;
  height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.zz22-partner-nav button::before,
.zz22-partner-nav button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 14px;
  height: 2px;
}

.zz22-partner-nav button::before { background: var(--zz22-line); }
.zz22-partner-nav button::after {
  right: auto;
  width: 0;
  background: var(--zz22-accent);
}

.zz22-partner-nav button.is-active::after {
  animation: zz22-progress 6000ms linear forwards;
}

.zz22-partner-nav button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

@keyframes zz22-progress { to { width: 100%; } }

@media (max-width: 1100px) {
  .zz22-partner { min-height: auto; padding: 72px 4vw 34px; }
  .zz22-partner-inner { min-height: 590px; grid-template-columns: .9fr 1.1fr; gap: 44px; }
  .zz22-partner-visual { min-height: 590px; }
  .zz22-partner-body { font-size: 16px; }
  .zz22-partner-nav { right: 24px; grid-template-columns: repeat(3, minmax(76px, 104px)); gap: 18px; }
}

@media (max-width: 760px) {
  .zz22-partner { padding: 62px 0 28px; scroll-margin-top: 122px; }
  .zz22-partner-inner { display: block; min-height: 0; }
  .zz22-partner-copy { max-width: none; padding: 0 7vw 52px; }
  .zz22-partner-label { margin-bottom: 22px; font-size: 16px; }
  .zz22-partner h2 { margin-bottom: 24px; font-size: clamp(34px, 10.5vw, 46px); line-height: 1.22; }
  .zz22-partner-body { margin-bottom: 34px; font-size: 15px; line-height: 1.72; }
  .zz22-partner-cta { min-height: 48px; padding: 0 21px; font-size: 15px; }
  .zz22-partner-visual { min-height: 0; height: min(112vw, 500px); border-radius: 10px 0 0 10px; margin-left: 7vw; }
  .zz22-partner-slide { inset: 0 0 50px; }
  .zz22-partner-nav { right: 7vw; bottom: 0; left: 0; grid-template-columns: repeat(3, 1fr); gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .zz22-partner-slide { transition: none; }
  .zz22-partner-nav button.is-active::after { animation: none; width: 100%; }
}