.page-contact {
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
  background:
    radial-gradient(1100px 460px at 84% -12%, rgba(255, 122, 26, 0.16), transparent 62%),
    radial-gradient(880px 500px at 4% 0%, rgba(53, 230, 224, 0.12), transparent 60%),
    var(--ink-900);
}

.page-contact .contact-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 78%);
}

.page-contact .contact-hero__inner {
  position: relative;
  padding-top: clamp(24px, 4.4vw, 52px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.012em;
  text-wrap: balance;
  overflow-wrap: break-word;
}

.page-contact .contact-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.82;
  color: var(--dim);
}

.page-contact .contact-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 44px);
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.page-contact .contact-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
  background: var(--ink-800);
}

.page-contact .contact-stat__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-contact .contact-stat__num em {
  font-style: normal;
  font-size: 0.48em;
  margin-left: 2px;
  color: var(--paper);
}

.page-contact .contact-stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim-2);
}

/* ---------- 主体两栏 ---------- */

.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 48px);
  padding-top: clamp(36px, 5vw, 62px);
  padding-bottom: clamp(48px, 6vw, 88px);
}

.page-contact .contact-body__main {
  min-width: 0;
}

.page-contact .contact-section + .contact-section {
  margin-top: clamp(42px, 5vw, 74px);
}

.page-contact .contact-section .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-contact .contact-section .section-head__num {
  color: var(--orange);
  font-size: 13px;
  letter-spacing: 0.12em;
  flex: 0 0 auto;
}

.page-contact .contact-section .section-head__title {
  margin: 0;
  flex: 0 1 auto;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-section .section-head__rule {
  flex: 1 1 auto;
  height: 1px;
  min-width: 24px;
  background: var(--line-strong);
  align-self: center;
}

.page-contact .contact-section__lead {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--dim);
}

/* ---------- 图片 ---------- */

.page-contact .contact-visual {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-contact .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-visual__cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--dim-2);
}

/* ---------- 合作方向卡片 ---------- */

.page-contact .directions {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.page-contact .direction-card {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-800);
  border-left: 2px solid transparent;
  transition: background-color 0.16s ease, border-left-color 0.16s ease;
}

.page-contact .direction-card:hover,
.page-contact .direction-card:focus-within {
  background: var(--ink-700);
  border-left-color: var(--orange);
}

.page-contact .direction-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .direction-card__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--dim-2);
}

.page-contact .direction-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.25;
  letter-spacing: 0.015em;
  color: var(--paper);
}

.page-contact .direction-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .direction-card__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.68;
}

.page-contact .direction-card__meta > div {
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.page-contact .direction-card__meta dt {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .direction-card__meta dd {
  margin: 0;
  color: var(--dim-2);
  min-width: 0;
}

/* ---------- 四步流程 ---------- */

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.page-contact .flow__step {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--ink-800);
  transition: background-color 0.16s ease;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s ease;
}

.page-contact .flow__step:hover,
.page-contact .flow__step:focus-within {
  background: var(--ink-700);
}

.page-contact .flow__step:hover::before,
.page-contact .flow__step:focus-within::before {
  transform: scaleX(1);
}

.page-contact .flow__num {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .flow__desc {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .flow__need {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 11.5px;
  line-height: 1.72;
  color: var(--dim-2);
  word-break: break-word;
}

/* ---------- 联系渠道 ---------- */

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.page-contact .channel {
  padding: 18px;
  background: var(--ink-800);
  min-width: 0;
}

.page-contact .channel__key {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-contact .channel__val {
  display: inline-block;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
}

.page-contact a.channel__val {
  border-bottom: 1px solid rgba(53, 230, 224, 0.35);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact a.channel__val:hover {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

.page-contact .channel__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--dim);
}

/* ---------- 回复时间 ---------- */

.page-contact .response-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--orange);
  background: linear-gradient(118deg, rgba(53, 230, 224, 0.09), rgba(255, 122, 26, 0.09) 72%);
}

.page-contact .response-strip__clock {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .response-strip__clock .mono {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3vw, 32px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--orange);
}

.page-contact .response-strip__clock > span:last-child {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--dim-2);
}

.page-contact .response-strip__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .response-strip__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--dim);
}

.page-contact .response-strip__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 资料清单 ---------- */

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-800);
  transition: background-color 0.16s ease;
}

.page-contact .checklist__item:hover {
  background: var(--ink-700);
}

.page-contact .checklist__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border: 1px solid var(--cyan);
}

.page-contact .checklist__mark::after {
  content: "";
  position: absolute;
  inset: 2px;
  background: rgba(53, 230, 224, 0.38);
}

.page-contact .checklist__item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .checklist__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--dim);
}

/* ---------- 页尾导航条 ---------- */

.page-contact .contact-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 22px;
  margin-top: clamp(34px, 4.4vw, 54px);
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
}

.page-contact .contact-nav__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--dim-2);
}

.page-contact .contact-nav a {
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.16s ease, border-color 0.16s ease;
}

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

/* ---------- 侧栏联系卡 ---------- */

.page-contact .contact-body__aside {
  min-width: 0;
}

.page-contact .contact-card {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--orange);
  background: var(--ink-800);
}

.page-contact .contact-card__eyebrow {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .contact-card__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.34;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-card__mail {
  display: block;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--paper);
  background: var(--ink-700);
  border: 1px solid var(--line-strong);
  text-decoration: none;
  word-break: break-all;
  transition: border-color 0.16s ease, color 0.16s ease;
}

.page-contact .contact-card__mail:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .contact-card__hint {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--dim-2);
}

.page-contact .contact-card__rows {
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  font-size: 13px;
}

.page-contact .contact-card__row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-contact .contact-card__row dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim-2);
}

.page-contact .contact-card__row dd {
  margin: 0;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .contact-card__row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, 0.3);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .contact-card__row dd a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .contact-card__addr {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.72;
  color: var(--dim);
}

.page-contact .contact-card__addr .mono {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--dim-2);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .directions,
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .response-strip {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: clamp(32px, 3.4vw, 52px);
  }

  .page-contact .contact-body__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1fr) 356px;
  }
}

@media (max-width: 520px) {
  .page-contact .contact-hero__title {
    max-width: none;
    font-size: clamp(30px, 9vw, 40px);
  }

  .page-contact .contact-section .section-head {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .page-contact .contact-section .section-head__rule {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .direction-card,
  .page-contact .flow__step,
  .page-contact .flow__step::before,
  .page-contact .checklist__item,
  .page-contact .contact-card__mail,
  .page-contact .contact-nav a {
    transition: none;
  }

  .page-contact .flow__step::before {
    transform: scaleX(1);
    opacity: 0.35;
  }
}