/* ===== 合作与联系 / page-contact ===== */

.page-contact {
  --pc-pad: clamp(52px, 8vw, 104px);
  --pc-rule-dark: 1px solid rgba(28, 22, 19, 0.18);
  background: var(--ink-deep);
  color: var(--pearl);
}

.page-contact a {
  color: inherit;
  text-decoration-color: var(--coral);
  text-underline-offset: 3px;
}

.page-contact a:hover {
  color: var(--coral);
}

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

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(100px, 12vw, 156px) 0 0;
  background:
    radial-gradient(120% 72% at 84% -12%, rgba(53, 167, 216, 0.24), transparent 62%),
    radial-gradient(80% 52% at 6% 8%, rgba(255, 107, 74, 0.13), transparent 60%),
    var(--ink-deep);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(53, 167, 216, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 167, 216, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(12px, 1.8vw, 20px);
  padding-bottom: clamp(30px, 4.5vw, 54px);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(10px, 1.6vw, 18px);
}

.page-contact .contact-hero__eyebrow {
  margin: 0;
  color: var(--sea-bright);
}

.page-contact .contact-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 66px);
  line-height: 1.16;
  letter-spacing: 0.05em;
  color: var(--pearl);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: rgba(247, 242, 232, 0.84);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--sea-bright);
}

.page-contact .contact-hero__facts li {
  position: relative;
  padding-left: 15px;
}

.page-contact .contact-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--coral);
}

.page-contact .contact-hero__media {
  position: relative;
  z-index: 1;
  margin: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-hero__media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(80px, 18vw, 240px);
  height: 4px;
  background: var(--coral);
  z-index: 2;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

/* ---------- 三类合作方向 ---------- */

.page-contact .contact-tracks {
  padding: var(--pc-pad) 0;
  background: var(--pearl);
  color: var(--brown);
}

.page-contact .contact-tracks__head {
  display: grid;
  gap: 12px;
  max-width: 46em;
}

.page-contact .contact-tracks .t-eyebrow {
  margin: 0;
  color: var(--sea);
}

.page-contact .contact-tracks .t-section {
  margin: 0;
  color: var(--brown);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.32;
  letter-spacing: 0.1em;
}

.page-contact .contact-tracks__note {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(28, 22, 19, 0.74);
}

.page-contact .contact-tracks__grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(28px, 4vw, 50px);
  border-top: 2px solid var(--brown);
}

.page-contact .contact-track {
  padding: 30px 0;
  border-bottom: var(--pc-rule-dark);
}

.page-contact .contact-track__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--coral);
}

.page-contact .contact-track__name {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(20px, 2.3vw, 26px);
  line-height: 1.35;
  letter-spacing: 0.1em;
  color: var(--brown);
}

.page-contact .contact-track__desc {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(28, 22, 19, 0.8);
}

.page-contact .contact-track__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .contact-track__row {
  display: grid;
  gap: 4px;
}

.page-contact .contact-track__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--sea);
}

.page-contact .contact-track__val {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(28, 22, 19, 0.82);
}

/* ---------- 四步洽谈流程 ---------- */

.page-contact .contact-flow {
  position: relative;
  padding: var(--pc-pad) 0;
  background: var(--ink-deep);
  color: var(--pearl);
}

.page-contact .contact-flow::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(53, 167, 216, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 167, 216, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-contact .contact-flow__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-flow .t-eyebrow {
  margin: 0 0 12px;
  color: var(--sea-bright);
}

.page-contact .contact-flow .t-section {
  margin: 0;
  color: var(--pearl);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.32;
  letter-spacing: 0.1em;
}

.page-contact .contact-flow__lead {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 242, 232, 0.8);
}

.page-contact .contact-flow__list {
  display: grid;
  gap: 0;
  margin: clamp(30px, 4vw, 50px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-flow__step {
  position: relative;
  padding: 40px 0 10px;
  border-top: 1px solid var(--rule);
}

.page-contact .contact-flow__step::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 13px;
  height: 13px;
  background: var(--coral);
}

.page-contact .contact-flow__summary {
  display: grid;
  gap: 8px;
  padding: 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-flow__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--sea-bright);
}

.page-contact .contact-flow__name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(19px, 2.1vw, 24px);
  letter-spacing: 0.1em;
  color: var(--pearl);
}

.page-contact .contact-flow__hint {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--coral-light);
}

.page-contact .contact-flow__hint::after {
  content: " +";
  color: var(--coral);
}

.page-contact .contact-flow__detail[open] .contact-flow__hint::after {
  content: " –";
}

.page-contact .contact-flow__detail[open] .contact-flow__name {
  color: var(--coral-light);
}

.page-contact .contact-flow__body {
  margin: 16px 0 22px;
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--coral);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 242, 232, 0.82);
}

.page-contact .contact-flow__body p {
  margin: 0 0 10px;
}

.page-contact .contact-flow__body ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 1.1em;
}

/* ---------- 响应节奏与常见疑问 ---------- */

.page-contact .contact-rhythm {
  padding: var(--pc-pad) 0;
  background: var(--cream);
  color: var(--brown);
}

.page-contact .contact-rhythm .t-eyebrow {
  margin: 0 0 12px;
  color: var(--sea);
}

.page-contact .contact-rhythm .t-section {
  margin: 0;
  color: var(--brown);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.32;
  letter-spacing: 0.1em;
}

.page-contact .contact-rhythm__block + .contact-rhythm__block {
  margin-top: clamp(48px, 6vw, 86px);
  padding-top: clamp(40px, 5vw, 64px);
  border-top: 3px solid var(--brown);
}

.page-contact .contact-pace__list {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pc-rule-dark);
}

.page-contact .contact-pace__row {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: var(--pc-rule-dark);
}

.page-contact .contact-pace__label {
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.04em;
  color: rgba(28, 22, 19, 0.7);
}

.page-contact .contact-pace__label strong {
  font-weight: 700;
  color: var(--coral);
}

.page-contact .contact-pace__note {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(28, 22, 19, 0.78);
}

.page-contact .contact-faq__list {
  margin: clamp(24px, 3vw, 38px) 0 0;
  border-top: 1px solid rgba(28, 22, 19, 0.22);
}

.page-contact .contact-faq__item {
  border-bottom: 1px solid rgba(28, 22, 19, 0.22);
}

.page-contact .contact-faq__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--brown);
}

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

.page-contact .contact-faq__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--coral);
}

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

.page-contact .contact-faq__a {
  margin: 0 0 20px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(28, 22, 19, 0.78);
}

/* ---------- 联系渠道 ---------- */

.page-contact .contact-reach {
  position: relative;
  padding: var(--pc-pad) 0 clamp(48px, 6vw, 84px);
  background:
    radial-gradient(90% 60% at 12% 0%, rgba(15, 92, 140, 0.42), transparent 66%),
    var(--ink-deep);
  color: var(--pearl);
}

.page-contact .contact-reach .t-eyebrow {
  margin: 0 0 12px;
  color: var(--sea-bright);
}

.page-contact .contact-reach .t-section {
  margin: 0;
  color: var(--pearl);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.32;
  letter-spacing: 0.1em;
}

.page-contact .contact-reach__layout {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .contact-reach__media {
  margin: 0;
  border: 1px solid var(--rule);
}

.page-contact .contact-reach__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(1.02);
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(24px, 3.4vw, 42px);
  background: var(--pearl);
  color: var(--brown);
  border: 3px solid var(--brown);
  box-shadow: 8px 8px 0 rgba(255, 107, 74, 0.88);
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 2.4vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.05em;
  color: var(--brown);
}

.page-contact .contact-card__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-card__row {
  padding: 18px 0;
  border-top: 1px solid rgba(28, 22, 19, 0.2);
}

.page-contact .contact-card__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--sea);
}

.page-contact .contact-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--brown);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__use {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(28, 22, 19, 0.74);
}

/* ---------- 地域与备案 ---------- */

.page-contact .contact-region {
  margin-top: clamp(40px, 5vw, 68px);
  padding-top: clamp(28px, 3.6vw, 44px);
  border-top: 1px solid var(--rule);
}

.page-contact .contact-region .t-eyebrow {
  margin: 0 0 20px;
  color: var(--sea-bright);
}

.page-contact .contact-region__list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-region__item {
  display: grid;
  gap: 5px;
}

.page-contact .contact-region__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--sea-bright);
}

.page-contact .contact-region__val {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: rgba(247, 242, 232, 0.84);
}

.page-contact .contact-region__note {
  margin: 24px 0 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(122, 147, 166, 0.95);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-pace__row {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }

  .page-contact .contact-region__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px 34px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-tracks__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-track {
    padding: 36px 26px 40px;
    border-bottom: 0;
    border-right: var(--pc-rule-dark);
  }

  .page-contact .contact-track:first-child {
    padding-left: 0;
  }

  .page-contact .contact-track:last-child {
    padding-right: 0;
    border-right: 0;
  }

  .page-contact .contact-flow__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-flow__step {
    padding: 40px 24px 10px 0;
  }

  .page-contact .contact-flow__step + .contact-flow__step {
    padding-left: 24px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-reach__layout {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 719px) {
  .page-contact .contact-hero__facts {
    flex-direction: column;
    gap: 8px;
  }

  .page-contact .contact-card {
    box-shadow: 5px 5px 0 rgba(255, 107, 74, 0.88);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    animation: none !important;
    transition: none !important;
  }
}
<<<END>>>