.hp-cases{
  --ink: #181817;
  --ink-soft: #4f4b46;
  --muted: #7b766f;
  --canvas: #f4f2ed;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --line: rgba(24, 24, 23, 0.14);
  --line-strong: rgba(24, 24, 23, 0.34);
  --red: #cf1520;
  --red-deep: #a70f18;
  --dark: #181817;
  --radius: 18px;
  --radius-control: 10px;
  --shadow: 0 28px 80px rgba(53, 44, 38, 0.09);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--ink);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
.hp-cases *{ box-sizing: border-box; }
.hp-cases{ background: var(--canvas); }
.hp-cases{
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 86%, rgba(207, 21, 32, 0.045), transparent 23rem),
    var(--canvas);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
.hp-cases button,
.hp-cases a{ font: inherit; }
.hp-cases .skip-link{
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: var(--radius-control);
  background: var(--dark);
  color: white;
  transform: translateY(-160%);
}
.hp-cases .skip-link:focus{ transform: translateY(0); }
.hp-cases .cases-section{
  min-height: 100dvh;
  display: grid;
  align-items: center;
  padding: 58px 32px 44px;
}
.hp-cases .cases-section__inner{
  width: min(1280px, 100%);
  margin: 0 auto;
}
.hp-cases .section-heading{
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(300px, 0.62fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 32px;
}
.hp-cases .section-kicker{
  margin: 0 0 14px;
  color: var(--red);
  font-size: 14px;
  font-weight: 720;
}
.hp-cases h2,
.hp-cases h3,
.hp-cases p{ margin-top: 0; }
.hp-cases h2{
  max-width: 820px;
  margin-bottom: 0;
  font-size: clamp(46px, 4.6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.052em;
  font-weight: 690;
}
.hp-cases .section-intro{
  padding-bottom: 4px;
}
.hp-cases .section-intro p{
  max-width: 430px;
  margin-bottom: 20px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}
.hp-cases .section-intro a,
.hp-cases .case-link{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 660;
  transition: color 180ms var(--ease), gap 180ms var(--ease);
}
.hp-cases .section-intro a:hover,
.hp-cases .section-intro a:focus-visible,
.hp-cases .case-link:hover,
.hp-cases .case-link:focus-visible{
  gap: 14px;
  color: var(--red);
}
.hp-cases a:focus-visible,
.hp-cases button:focus-visible{
  outline: 3px solid rgba(207, 21, 32, 0.28);
  outline-offset: 4px;
}
.hp-cases .cases-layout{
  display: grid;
  grid-template-columns: minmax(0, 1.72fr) minmax(300px, 0.68fr);
  gap: 20px;
  align-items: stretch;
}
.hp-cases .case-feature{
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.hp-cases .case-feature.is-changing .case-visual__main,
.hp-cases .case-feature.is-changing .case-visual__detail,
.hp-cases .case-feature.is-changing .case-feature__content{
  opacity: 0.42;
  transform: translateY(5px);
}
.hp-cases .case-visual{
  position: relative;
  height: 300px;
  overflow: hidden;
  background: #d9d6d0;
}
.hp-cases .case-visual__main{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  transition: opacity 220ms var(--ease), transform 520ms var(--ease);
}
.hp-cases .case-feature[data-active-case="crcc"] .case-visual__main{ object-position: center 34%; }
.hp-cases .case-feature[data-active-case="crcc"] .case-visual__detail img{ object-position: center 48%; }
.hp-cases .case-feature[data-active-case="tianjiao"] .case-visual__main{ object-position: center 56%; }
.hp-cases .case-feature[data-active-case="tianjiao"] .case-visual__detail img{ object-position: center 44%; }
.hp-cases .case-feature[data-active-case="oumai"] .case-visual__main{ object-position: center 54%; }
.hp-cases .case-feature[data-active-case="oumai"] .case-visual__detail img{ object-position: center 56%; }
.hp-cases .case-feature:hover .case-visual__main{ transform: scale(1.018); }
.hp-cases .case-visual__shade{
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 20, 19, 0.38), transparent 42%, rgba(20, 20, 19, 0.08));
  pointer-events: none;
}
.hp-cases .case-visual__meta{
  position: absolute;
  top: 20px;
  left: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  font-size: 12px;
  font-weight: 650;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}
.hp-cases .case-visual__meta span:first-child{
  padding-right: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.56);
}
.hp-cases .case-visual__detail{
  position: absolute;
  right: 20px;
  bottom: 20px;
  width: 226px;
  height: 132px;
  margin: 0;
  overflow: hidden;
  border: 5px solid rgba(255, 255, 255, 0.96);
  border-radius: 12px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.hp-cases .case-visual__detail img{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.hp-cases .case-media-disclaimer{
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding: 9px 30px 10px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}
.hp-cases .case-media-disclaimer strong{
  flex: 0 0 auto;
  color: var(--red-deep);
  font-size: 11px;
}
.hp-cases .case-feature__content{
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  gap: 42px;
  padding: 28px 30px 30px;
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.hp-cases .case-company{
  margin-bottom: 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 720;
}
.hp-cases .case-feature h3{
  max-width: 570px;
  margin-bottom: 0;
  font-size: clamp(25px, 2.3vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.035em;
}
.hp-cases .case-feature h3:focus{ outline: none; }
.hp-cases .case-feature__detail > p{
  margin-bottom: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}
.hp-cases .case-tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 17px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.hp-cases .case-tags li{
  position: relative;
  padding-left: 12px;
  font-size: 12px;
  font-weight: 640;
}
.hp-cases .case-tags li::before{
  content: "";
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--red);
}
.hp-cases .case-evidence{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.hp-cases .case-evidence span{
  color: var(--muted);
  font-size: 11px;
}
.hp-cases .case-evidence strong{
  font-size: 12px;
  line-height: 1.5;
}
.hp-cases .case-selector{
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 250, 247, 0.82);
}
.hp-cases .case-selector__heading{
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 16px;
}
.hp-cases .case-selector__heading p{
  margin-bottom: 0;
  font-size: 15px;
  font-weight: 680;
}
.hp-cases .case-selector__heading span{
  color: var(--muted);
  font-size: 11px;
}
.hp-cases .case-selector__list{
  display: grid;
  gap: 12px;
}
.hp-cases .case-option{
  overflow: hidden;
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  min-height: 142px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}
.hp-cases .case-option:hover{
  border-color: rgba(207, 21, 32, 0.42);
  box-shadow: 0 12px 28px rgba(53, 44, 38, 0.08);
  transform: translateY(-2px);
}
.hp-cases .case-option img{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.hp-cases .case-option[data-case-choice="crcc"] img{ object-position: center 34%; }
.hp-cases .case-option[data-case-choice="tianjiao"] img{ object-position: center 56%; }
.hp-cases .case-option[data-case-choice="oumai"] img{ object-position: center 54%; }
.hp-cases .case-option__copy{
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 16px 14px;
}
.hp-cases .case-option__meta{
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 10px;
}
.hp-cases .case-option strong{
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.35;
}
.hp-cases .case-option small{
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.5;
}
.hp-cases .case-option__arrow{
  margin-top: auto;
  padding-top: 10px;
  color: var(--red);
  font-size: 16px;
}
.hp-cases .case-source-note{
  margin: auto 2px 0;
  padding-top: 18px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.65;
}


@media (max-width: 1040px) {.hp-cases .cases-section{ padding-inline: 24px; }
.hp-cases .section-heading{ grid-template-columns: 1fr; gap: 20px; }
.hp-cases .section-intro p{ max-width: 720px; }
.hp-cases .cases-layout{ grid-template-columns: 1fr; }
.hp-cases .case-selector__list{ grid-template-columns: 1fr 1fr; }
.hp-cases .case-source-note{ margin-top: 18px; }

}

@media (max-width: 720px) {.hp-cases .cases-section{
    min-height: auto;
    padding: 42px 16px 36px;
  }
.hp-cases .section-heading{ margin-bottom: 24px; }
.hp-cases h2{
    font-size: clamp(38px, 10vw, 48px);
    line-height: 1.12;
    letter-spacing: -0.045em;
  }
.hp-cases .section-intro p{ font-size: 16px; }
.hp-cases .case-visual{ height: 260px; }
.hp-cases .case-visual__detail{
    right: 12px;
    bottom: 12px;
    width: 136px;
    height: 86px;
    border-width: 3px;
  }
.hp-cases .case-feature__content{
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 24px 20px 26px;
  }
.hp-cases .case-media-disclaimer{
    align-items: flex-start;
    padding-inline: 20px;
  }
.hp-cases .case-feature h3{ font-size: 28px; }
.hp-cases .case-evidence{ grid-template-columns: 1fr; gap: 6px; }
.hp-cases .case-selector{ padding: 16px; }
.hp-cases .case-selector__list{ grid-template-columns: 1fr; }
.hp-cases .case-option{ grid-template-columns: 108px 1fr; }

}

@media (prefers-reduced-motion: reduce) {.hp-cases *,
.hp-cases *::before,
.hp-cases *::after{
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

}