/* ========== 商务合作 / page-contact ========== */
.page-contact {
  --pc-cut: 26px;
  --pc-cut-sm: 14px;
  --pc-edge: #14573C;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-contact .lede {
  max-width: 62ch;
}

/* ---------- 首屏：声明 + 事实条 ---------- */
.page-contact .pc-intro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 60px);
  align-items: end;
}

.page-contact .pc-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .pc-facts {
  margin: 0;
  border-top: 2px solid var(--yellow);
}

.page-contact .pc-facts__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .pc-facts__label {
  color: var(--fg-dim);
  font-size: 14px;
  letter-spacing: .04em;
}

.page-contact .pc-facts__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--cyan);
  text-align: right;
  white-space: nowrap;
}

.page-contact .pc-facts__value .num {
  font-family: var(--font-mono);
}

/* ---------- 三条合作线 ---------- */
.page-contact .pc-ways {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .pc-way {
  position: relative;
  background: var(--panel);
  border-top: 3px solid var(--bright);
  padding: 24px 22px 26px;
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .pc-way:nth-child(2) {
  border-top-color: var(--yellow);
}

.page-contact .pc-way:nth-child(3) {
  border-top-color: var(--red);
}

.page-contact .pc-way:hover {
  background: #0F4632;
}

.page-contact .pc-way__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 34px;
  padding: 0 8px;
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
  margin-bottom: 16px;
}

.page-contact .pc-way__title {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.35;
  color: #FFFFFF;
}

.page-contact .pc-way__who {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .pc-way__text {
  margin: 0 0 16px;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .pc-way__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--pc-edge);
}

.page-contact .pc-way__list li {
  position: relative;
  padding: 9px 0 9px 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--fg);
  border-bottom: 1px solid rgba(20, 87, 60, .55);
}

.page-contact .pc-way__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 7px;
  height: 7px;
  background: var(--bright);
  transform: rotate(45deg);
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.5vw, 44px);
}

.page-contact .pc-shot {
  position: relative;
  margin: 0 0 26px;
  background: var(--blue);
  border: 1px solid var(--pc-edge);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .pc-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .pc-shot--wide {
  margin: clamp(26px, 4vw, 40px) 0 clamp(20px, 3vw, 28px);
}

.page-contact .pc-shot--wide img {
  aspect-ratio: 3 / 2;
}

.page-contact .pc-shot__cap {
  padding: 12px 18px;
  background: rgba(18, 48, 74, .88);
  border-top: 1px solid var(--pc-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--cyan);
}

.page-contact .pc-steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  position: relative;
}

.page-contact .pc-steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 12px;
  bottom: 26px;
  width: 2px;
  background-image: repeating-linear-gradient(to bottom, var(--pc-edge) 0 7px, transparent 7px 15px);
}

.page-contact .pc-step {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding-bottom: 26px;
}

.page-contact .pc-step__no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--pitch);
  border: 2px solid var(--bright);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-step:hover .pc-step__no,
.page-contact .pc-step:focus-within .pc-step__no,
.page-contact .pc-step:focus .pc-step__no {
  border-color: var(--cyan);
  color: var(--cyan);
  background: #081F17;
}

.page-contact .pc-step__title {
  margin: 6px 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  color: #FFFFFF;
}

.page-contact .pc-step__text {
  margin: 0;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .pc-step__out {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--fg);
}

/* ---------- 侧栏：联系卡 + 准备清单 ---------- */
.page-contact .pc-flow__aside {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-contact .pc-card {
  position: relative;
  background: var(--blue);
  border-top: 3px solid var(--cyan);
  padding: 24px 22px 22px;
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, 0 100%);
}

.page-contact .pc-card__eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .pc-card__title {
  margin: 0 0 18px;
  font-size: 19px;
  font-weight: 800;
  color: #FFFFFF;
}

.page-contact .pc-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .pc-card__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 12px 0;
  border-top: 1px solid rgba(53, 224, 208, .22);
}

.page-contact .pc-card__key {
  flex: 0 0 76px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: .04em;
}

.page-contact .pc-card__val {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  overflow-wrap: anywhere;
}

.page-contact .pc-card__val a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pc-card__val a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .pc-prep {
  background: var(--panel);
  border-left: 3px solid var(--yellow);
  padding: 22px;
}

.page-contact .pc-prep__title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF;
}

.page-contact .pc-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .pc-prep__item + .pc-prep__item {
  border-top: 1px solid rgba(20, 87, 60, .7);
}

.page-contact .pc-prep__label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg);
  cursor: pointer;
}

.page-contact .pc-prep__box {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .pc-prep__label:hover span {
  color: #FFFFFF;
}

.page-contact .pc-prep__note {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--fg-mute);
}

/* ---------- 可交付内容 ---------- */
.page-contact .pc-deliver {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .pc-deliver__card {
  background: var(--pitch);
  border: 1px solid var(--pc-edge);
  padding: 22px 20px;
  clip-path: polygon(0 0, calc(100% - var(--pc-cut-sm)) 0, 100% var(--pc-cut-sm), 100% 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-deliver__card:hover {
  border-color: var(--cyan);
  background: #082419;
}

.page-contact .pc-deliver__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--yellow);
  font-size: 17px;
  font-weight: 800;
  color: #FFFFFF;
}

.page-contact .pc-deliver__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-contact .pc-deliver__list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(20, 87, 60, .5);
  overflow-wrap: anywhere;
}

.page-contact .pc-deliver__list li:last-child {
  border-bottom: none;
}

.page-contact .pc-links {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--fg-dim);
}

.page-contact .pc-links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, .45);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pc-links a:hover {
  color: #FFFFFF;
  border-bottom-color: #FFFFFF;
}

/* ---------- 联系方式 ---------- */
.page-contact .pc-channels {
  border-top: 1px solid var(--pc-edge);
}

.page-contact .pc-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  background: var(--blue);
  border-bottom: 2px solid var(--cyan);
  padding: 20px 20px 22px;
}

.page-contact .pc-channel__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--fg-mute);
}

.page-contact .pc-channel__val {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 16px);
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pc-channel__val:hover {
  color: #FFFFFF;
  border-bottom-color: #FFFFFF;
}

.page-contact .pc-channel__val--plain {
  color: var(--fg);
  font-weight: 400;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
}

.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 10px;
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .copy-btn:hover {
  background: var(--cyan);
  color: var(--ink);
}

.page-contact .pc-response {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(26px, 4vw, 40px);
  border-top: 1px dashed var(--pc-edge);
}

.page-contact .pc-response__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .pc-response__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--yellow);
  padding-top: 3px;
}

.page-contact .pc-response__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-contact .pc-response__item a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, .45);
}

.page-contact .pc-response__item a:hover {
  color: #FFFFFF;
  border-bottom-color: #FFFFFF;
}

/* ---------- 常见问题 ---------- */
.page-contact .pc-faq {
  border-top: 1px solid var(--pc-edge);
  max-width: 900px;
}

.page-contact .pc-faq__item {
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .pc-faq__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 700;
  color: #FFFFFF;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .pc-faq__q::-webkit-details-marker {
  display: none;
}

.page-contact .pc-faq__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--yellow);
}

.page-contact .pc-faq__q:hover {
  color: var(--cyan);
}

.page-contact .pc-faq__item[open] .pc-faq__q::after {
  content: "–";
  color: var(--cyan);
}

.page-contact .pc-faq__a {
  margin: 0;
  padding: 0 0 20px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fg-dim);
}

/* ---------- 桌面栅格与流程展开 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-ways {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .pc-deliver {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .pc-channels__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-intro__grid {
    grid-template-columns: 7fr 5fr;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-flow {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .pc-flow__aside {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

@media (min-width: 1024px) and (hover: hover) and (pointer: fine) {
  .page-contact .pc-step__out {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    transition: max-height var(--dur-slow) var(--ease), opacity var(--dur) var(--ease), margin-top var(--dur) var(--ease);
  }

  .page-contact .pc-step:hover .pc-step__out,
  .page-contact .pc-step:focus-within .pc-step__out,
  .page-contact .pc-step:focus .pc-step__out {
    max-height: 140px;
    opacity: 1;
    margin-top: 12px;
  }
}

@media (max-width: 480px) {
  .page-contact .pc-facts__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .page-contact .pc-facts__value {
    text-align: left;
  }

  .page-contact .pc-card__key {
    flex: 0 0 100%;
  }

  .page-contact .pc-step {
    grid-template-columns: 32px 1fr;
    gap: 12px;
  }

  .page-contact .pc-step__no {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .page-contact .pc-steps::before {
    left: 15px;
  }
}
<<<END>>>