.page-contact {
  --pc-pad: 20px;
  --pc-max: 1180px;
  --pc-sec: 64px;
  --pc-card-line: 2px solid var(--ink-900);
  display: block;
  background: var(--white-050);
  color: var(--stone-600);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact .container {
  width: 100%;
  max-width: var(--pc-max);
  margin: 0 auto;
  padding-left: var(--pc-pad);
  padding-right: var(--pc-pad);
}

.page-contact .c-sec {
  padding: var(--pc-sec) 0;
}

/* ---------- 顶部深色带 ---------- */
.page-contact .c-top {
  background-color: var(--ink-900);
  background-image: repeating-linear-gradient(
    118deg,
    rgba(61, 242, 210, 0.07) 0 1px,
    transparent 1px 28px
  );
  color: var(--white-050);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--cool-400);
}

.page-contact .breadcrumb__link {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ease);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  border-bottom-color: var(--cyan-400);
}

.page-contact .breadcrumb__current {
  color: var(--white-050);
}

/* ---------- 首屏 ---------- */
.page-contact .c-hero {
  padding: 28px 0 56px;
}

.page-contact .c-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .c-eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--yellow-400);
}

.page-contact h1 {
  margin: 0 0 20px;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white-050);
}

.page-contact .c-hero__lead {
  max-width: 34em;
  margin: 0 0 28px;
  font-size: var(--fs-17);
  color: var(--cool-400);
}

.page-contact .c-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .c-hero__actions .btn {
  border-radius: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .c-hero__actions .btn--ghost {
  color: var(--white-050);
  border-color: var(--cyan-400);
  background: transparent;
}

.page-contact .c-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 34px 0 0;
}

.page-contact .c-fact {
  padding-left: 14px;
  border-left: 2px solid var(--cyan-600);
}

.page-contact .c-fact dt {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.3;
  color: var(--orange-500);
}

.page-contact .c-fact dd {
  margin: 4px 0 0;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--cool-400);
}

.page-contact .c-hero__media {
  margin: 0;
  border: 2px solid var(--cyan-600);
  box-shadow: 10px 10px 0 rgba(61, 242, 210, 0.18);
}

.page-contact .c-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

/* ---------- 区块头 ---------- */
.page-contact .c-sec-head {
  max-width: 44em;
  margin: 0 0 36px;
}

.page-contact .c-sec-head__num {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-14);
  letter-spacing: 0.14em;
  color: var(--cyan-600);
}

.page-contact .c-sec-head__num::after {
  content: "";
  width: 42px;
  height: 2px;
  background: currentColor;
}

.page-contact .c-sec-head__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-40);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .c-sec-head__desc {
  margin: 0;
  font-size: var(--fs-17);
  color: var(--stone-600);
}

.page-contact .c-sec-head--dark .c-sec-head__num {
  color: var(--yellow-400);
}

.page-contact .c-sec-head--dark .c-sec-head__title {
  color: var(--white-050);
}

.page-contact .c-sec-head--dark .c-sec-head__desc {
  color: var(--cool-400);
}

/* ---------- 四种合作方式 ---------- */
.page-contact .c-ways {
  background: var(--white-050);
}

.page-contact .c-ways__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .c-way {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--white-050);
  border: var(--pc-card-line);
  box-shadow: var(--shadow-hard-light);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-contact .c-way:hover,
.page-contact .c-way:focus-within {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--ink-900);
  border-color: var(--cyan-600);
}

.page-contact .c-way__num {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 10px;
  background: var(--ink-900);
  color: var(--white-050);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
}

.page-contact .c-way__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-28);
  line-height: 1.2;
  color: var(--ink-900);
}

.page-contact .c-way__for {
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--orange-500);
  font-size: var(--fs-14);
  color: var(--stone-600);
}

.page-contact .c-way__for span {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--orange-700);
}

.page-contact .c-way__body {
  margin: 0 0 16px;
  font-size: var(--fs-17);
  color: var(--stone-600);
}

.page-contact .c-way__out {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-size: var(--fs-14);
  color: var(--stone-600);
}

.page-contact .c-way__out li {
  position: relative;
  padding-left: 20px;
}

.page-contact .c-way__out li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--cyan-600);
}

.page-contact .c-way__link {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-14);
  color: var(--ink-900);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--cyan-600);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .c-way__link:hover,
.page-contact .c-way__link:focus-visible {
  color: var(--orange-700);
  border-bottom-color: var(--orange-500);
}

.page-contact .c-ways__media {
  margin: 32px 0 0;
}

.page-contact .c-ways__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: var(--pc-card-line);
  box-shadow: var(--shadow-hard-light);
}

.page-contact .c-ways__media figcaption {
  margin-top: 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--stone-600);
}

/* ---------- 流程 ---------- */
.page-contact .c-flow {
  background: var(--ink-800);
  background-image: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 60%);
  color: var(--white-050);
}

.page-contact .c-steps {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .c-steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--ink-700);
}

.page-contact .c-step {
  position: relative;
  padding-left: 56px;
}

.page-contact .c-step__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--ink-900);
  border: 2px solid var(--cyan-400);
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-14);
}

.page-contact .c-step--now .c-step__num {
  border-color: var(--orange-500);
  color: var(--orange-500);
  background: rgba(255, 106, 31, 0.12);
}

.page-contact .c-step__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-20);
  line-height: 1.3;
  color: var(--white-050);
}

.page-contact .c-step__time {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--yellow-400);
}

.page-contact .c-step__body {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--cool-400);
}

/* ---------- 联系大卡 ---------- */
.page-contact .c-channels {
  background: var(--white-050);
}

.page-contact .c-card {
  padding: 28px 22px 30px;
  background: var(--ink-900);
  background-image: radial-gradient(
    circle at 88% 8%,
    rgba(61, 242, 210, 0.16) 0%,
    transparent 52%
  );
  border: 2px solid var(--ink-700);
  box-shadow: 8px 8px 0 var(--orange-500);
  color: var(--white-050);
}

.page-contact .c-card__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-14);
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}

.page-contact .c-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-40);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white-050);
}

.page-contact .c-card__lead {
  max-width: 40em;
  margin: 0 0 28px;
  font-size: var(--fs-17);
  color: var(--cool-400);
}

.page-contact .c-card__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .c-channel {
  padding: 18px 16px 20px;
  border: 2px solid var(--ink-700);
  background: rgba(20, 66, 95, 0.35);
  transition: border-color var(--ease), background var(--ease);
}

.page-contact .c-channel:hover {
  border-color: var(--cyan-400);
  background: rgba(20, 66, 95, 0.6);
}

.page-contact .c-channel__label {
  margin: 0 0 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--cyan-400);
}

.page-contact .c-channel__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-17);
  line-height: 1.4;
  color: var(--white-050);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 2px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact a.c-channel__value:hover,
.page-contact a.c-channel__value:focus-visible {
  color: var(--yellow-400);
  border-bottom-color: var(--yellow-400);
}

.page-contact .c-channel__value--lg {
  font-size: var(--fs-28);
  color: var(--orange-500);
  letter-spacing: 0.02em;
}

.page-contact .c-channel__value--text {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--fs-14);
  word-break: normal;
}

.page-contact .c-channel__note {
  margin: 12px 0 0;
  font-size: var(--fs-14);
  color: var(--cool-400);
}

.page-contact .c-card__foot {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 2px solid var(--ink-700);
  font-size: var(--fs-14);
  color: var(--cool-400);
}

/* ---------- 资料清单 ---------- */
.page-contact .c-kit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .c-checklist {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .c-check__label {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--white-050);
  border: 2px solid var(--ink-700);
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}

.page-contact .c-check__label:hover {
  border-color: var(--cyan-600);
  background: rgba(223, 231, 236, 0.5);
}

.page-contact .c-check__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-contact .c-check__box {
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 2px solid var(--ink-900);
  background: var(--white-050);
}

.page-contact .c-check__box::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--cyan-400);
  transform: scale(0);
  transition: transform var(--ease);
}

.page-contact .c-check__input:checked + .c-check__box::after {
  transform: scale(1);
}

.page-contact .c-check__input:checked + .c-check__box {
  border-color: var(--cyan-600);
}

.page-contact .c-check__input:focus-visible + .c-check__box {
  outline: 2px solid var(--orange-500);
  outline-offset: 3px;
}

.page-contact .c-check__text {
  font-size: var(--fs-14);
  color: var(--stone-600);
}

.page-contact .c-check__text strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: var(--fs-17);
  font-weight: 900;
  color: var(--ink-900);
}

.page-contact .c-kit__hint {
  align-self: start;
  padding: 24px 20px 26px;
  background: var(--ink-800);
  border: 2px solid var(--ink-700);
  box-shadow: 6px 6px 0 rgba(255, 106, 31, 0.5);
  color: var(--cool-400);
}

.page-contact .c-kit__hint-num {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-contact .c-kit__hint p {
  margin: 0 0 14px;
  font-size: var(--fs-14);
  color: var(--cool-400);
}

.page-contact .c-kit__hint .btn {
  margin-top: 6px;
  border-radius: 0;
  font-family: var(--font-display);
  font-weight: 700;
}

/* ---------- 常见问题 ---------- */
.page-contact .c-faq {
  background: var(--white-050);
}

.page-contact .c-faq__list {
  display: grid;
  gap: 12px;
  border-top: 2px solid var(--ink-900);
  padding-top: 12px;
}

.page-contact .c-faq__item {
  border: 2px solid var(--ink-700);
  background: var(--white-050);
  transition: border-color var(--ease);
}

.page-contact .c-faq__item[open] {
  border-color: var(--ink-900);
  box-shadow: 5px 5px 0 var(--ink-900);
}

.page-contact .c-faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
  padding: 14px 18px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-17);
  line-height: 1.4;
  color: var(--ink-900);
  list-style: none;
}

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

.page-contact .c-faq__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--orange-500);
  transition: transform var(--ease);
}

.page-contact .c-faq__item[open] .c-faq__q::after {
  content: "−";
}

.page-contact .c-faq__q:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: -4px;
}

.page-contact .c-faq__a {
  padding: 0 18px 18px;
  font-size: var(--fs-14);
  color: var(--stone-600);
}

.page-contact .c-faq__a p {
  margin: 0;
}

/* ---------- 延伸入口 ---------- */
.page-contact .c-next {
  background: var(--white-050);
  padding-bottom: 72px;
}

.page-contact .c-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .c-next__card {
  display: grid;
  gap: 6px;
  padding: 20px;
  text-decoration: none;
  background: var(--white-050);
  border: 2px solid var(--ink-700);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-contact .c-next__card:hover,
.page-contact .c-next__card:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--cyan-600);
  box-shadow: 5px 5px 0 var(--ink-900);
}

.page-contact .c-next__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--cyan-600);
}

.page-contact .c-next__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-20);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-contact .c-next__desc {
  font-size: var(--fs-14);
  color: var(--stone-600);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 560px) {
  .page-contact .c-hero__facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-contact .c-card__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .c-next__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 820px) {
  .page-contact {
    --pc-pad: 40px;
    --pc-sec: 96px;
  }

  .page-contact .c-hero {
    padding: 36px 0 88px;
  }

  .page-contact .c-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    gap: 48px;
  }

  .page-contact .c-hero__media {
    align-self: end;
  }

  .page-contact .c-ways__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 26px;
  }

  .page-contact .c-way:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-contact .c-way:nth-child(2) {
    grid-column: 8 / span 5;
  }

  .page-contact .c-way:nth-child(3) {
    grid-column: 2 / span 5;
  }

  .page-contact .c-way:nth-child(4) {
    grid-column: 7 / span 6;
  }

  .page-contact .c-ways__media {
    margin-top: 42px;
  }

  .page-contact .c-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }

  .page-contact .c-steps::before {
    left: 0;
    right: 0;
    top: 20px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .page-contact .c-step {
    padding: 56px 0 0;
  }

  .page-contact .c-card {
    padding: 44px 40px 46px;
  }

  .page-contact .c-kit__grid {
    grid-template-columns: 1.55fr 1fr;
    gap: 34px;
    align-items: start;
  }

  .page-contact .c-next__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .c-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 64px;
  }

  .page-contact .c-card__grid {
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-contact .c-way:hover,
  .page-contact .c-way:focus-within,
  .page-contact .c-next__card:hover,
  .page-contact .c-next__card:focus-visible {
    transform: none;
  }
}