.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏：非对称双栏 ---------- */
.page-contact .co-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: clamp(20px, 4vw, 36px);
}
.page-contact .co-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  left: -12%;
  right: -12%;
  height: 72%;
  z-index: -1;
  background:
    radial-gradient(50% 60% at 24% 22%, rgba(57, 255, 208, .13), transparent 70%),
    radial-gradient(46% 56% at 82% 8%, rgba(255, 122, 26, .13), transparent 72%);
  pointer-events: none;
}
.page-contact .co-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(18px, 3vw, 32px);
}
.page-contact .co-hero__lead {
  min-width: 0;
}
.page-contact .co-hero__title {
  margin: 12px 0 0;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-contact .co-hero__text {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
}

/* 大号等宽联系方式 */
.page-contact .co-rail {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 2px solid var(--line-strong);
}
.page-contact .co-rail__row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .co-rail__label {
  grid-column: 1 / -1;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-contact .co-rail__value {
  grid-column: 1;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(15px, 4.2vw, 22px);
  color: var(--white);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.page-contact .co-rail__row .copy-chip {
  grid-column: 2;
}
.page-contact .co-mail:hover,
.page-contact .co-mail:focus-visible {
  color: var(--cyan);
}
.page-contact .co-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* 媒体框（首屏 / 联系台共用） */
.page-contact .co-fig {
  position: relative;
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-2);
}
.page-contact .co-fig .media-frame__inner {
  display: block;
  overflow: hidden;
}
.page-contact .co-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .co-fig .media-frame__tag {
  position: absolute;
  top: 12px;
  left: 12px;
}
.page-contact .co-fig .media-frame__cap {
  display: block;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 四类合作方向 ---------- */
.page-contact .co-types__grid {
  margin-top: clamp(20px, 3vw, 32px);
}
.page-contact .co-type {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-left: 3px solid var(--cyan);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.page-contact .co-type:nth-child(2) {
  border-left-color: var(--orange);
}
.page-contact .co-type:nth-child(3) {
  border-left-color: var(--indigo);
}
.page-contact .co-type:nth-child(4) {
  border-left-color: var(--magenta);
}
.page-contact .co-type:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-1);
}
.page-contact .co-type__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gray);
}
.page-contact .co-type .card__text {
  color: var(--text);
}
.page-contact .co-type .card__foot {
  margin-top: auto;
}

/* ---------- 安装包分发与版本同步 ---------- */
.page-contact .co-sync__grid {
  margin-top: clamp(20px, 3vw, 32px);
  align-items: start;
}
.page-contact .co-sync__text p {
  margin: 0 0 14px;
  color: var(--text);
}
.page-contact .co-sync__table {
  border: 1px solid var(--line);
  background: rgba(7, 11, 20, .45);
}
.page-contact .co-sync__table .table {
  min-width: 560px;
}
.page-contact .co-sync__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-contact .co-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 24px);
  margin-top: clamp(24px, 3vw, 36px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}
.page-contact .co-stats .stat {
  border-left: 2px solid var(--line-cyan);
  padding-left: 14px;
}
.page-contact .co-stats .stat__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1;
  color: var(--orange);
}
.page-contact .co-stats .stat__unit {
  margin-left: 6px;
  font-size: 14px;
  color: var(--text-dim);
}
.page-contact .co-stats .stat__label {
  display: block;
  margin-top: 8px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 开服攻略与内容共建 ---------- */
.page-contact .co-open__grid {
  margin-top: clamp(20px, 3vw, 32px);
  align-items: start;
}
.page-contact .co-open__stat {
  border: 2px solid var(--line-cyan);
  background:
    linear-gradient(158deg, rgba(57, 255, 208, .09), transparent 58%),
    var(--ink-2);
  padding: clamp(20px, 3vw, 30px);
  box-shadow: var(--shadow-cyan);
}
.page-contact .co-open__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(44px, 10vw, 84px);
  line-height: 1;
  color: var(--cyan);
}
.page-contact .co-open__unit {
  margin-left: 6px;
  font-family: var(--f-mono);
  font-size: 16px;
  color: var(--cyan);
}
.page-contact .co-open__cap {
  margin: 16px 0 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
}
.page-contact .co-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .co-list__item {
  border: 2px solid var(--line);
  border-left-width: 4px;
  background: var(--ink-3);
  padding: 16px 18px;
  transition: border-color var(--ease), transform var(--ease);
}
.page-contact .co-list__item:hover {
  transform: translateX(3px);
}
.page-contact .co-list__item--cyan {
  border-left-color: var(--cyan);
}
.page-contact .co-list__item--orange {
  border-left-color: var(--orange);
}
.page-contact .co-list__item--indigo {
  border-left-color: var(--indigo);
}
.page-contact .co-list__item--magenta {
  border-left-color: var(--magenta);
}
.page-contact .co-list__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-contact .co-list__text {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 礼包码与活动合作 ---------- */
.page-contact .co-code__grid {
  margin-top: clamp(20px, 3vw, 32px);
}
.page-contact .co-code__card {
  border-color: var(--line-magenta);
  background: rgba(58, 13, 24, .55);
}
.page-contact .co-code__card .card__title {
  color: var(--white);
}
.page-contact .co-code__card .card__text {
  color: var(--text);
}
.page-contact .co-code__card:hover {
  border-color: var(--magenta);
  transform: translate(-3px, -3px);
}

/* ---------- 合作流程 ---------- */
.page-contact .co-flow {
  list-style: none;
  position: relative;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .co-step {
  position: relative;
  border: 2px solid var(--line);
  background: var(--ink-3);
  padding: 18px;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.page-contact .co-step:hover {
  transform: translate(-3px, -3px);
  border-color: var(--line-cyan);
  box-shadow: var(--shadow-cyan);
}
.page-contact .co-step__num {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}
.page-contact .co-step__title {
  margin: 8px 0 0;
  font-family: var(--f-head);
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-contact .co-step__text {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}
.page-contact .co-step__more {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 联系方式 ---------- */
.page-contact .co-desk__grid {
  margin-top: clamp(20px, 3vw, 32px);
  align-items: start;
}
.page-contact .co-desk__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line-strong);
}
.page-contact .co-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .co-item__label {
  grid-column: 1 / -1;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-contact .co-item__value {
  grid-column: 1;
  color: var(--white);
  font-size: clamp(15px, 4vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.page-contact .co-item__value.mono {
  font-family: var(--f-mono);
}
.page-contact .co-item .copy-chip {
  grid-column: 2;
}
.page-contact .co-desk__note {
  margin: 18px 0 0;
}
.page-contact .co-desk__meta {
  margin: 14px 0 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.85;
}
.page-contact .co-desk__meta .link-arrow {
  margin: 0 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .co-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .co-hero__grid {
    grid-template-columns: 1.1fr .9fr;
    align-items: start;
  }
  .page-contact .co-hero__title {
    font-size: clamp(46px, 4.4vw, 68px);
  }
  .page-contact .co-rail__value {
    font-size: 24px;
  }
  .page-contact .co-flow {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .page-contact .co-flow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -12px;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--orange), var(--indigo), var(--magenta));
    opacity: .55;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-contact .co-step__more {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    transition: max-height var(--ease), opacity var(--ease), margin-top var(--ease), padding-top var(--ease);
  }
  .page-contact .co-step:hover .co-step__more,
  .page-contact .co-step:focus-within .co-step__more {
    max-height: 240px;
    opacity: 1;
    margin-top: 10px;
    padding-top: 10px;
    border-top-color: var(--line);
  }
}