/* ===== 商务合作 / 联系渠道页 ===== */
.page-contact {
  --ct-gap: clamp(16px, 3vw, 28px);
  background: var(--ink-deep);
  color: var(--text);
  font-family: var(--font-body);
  padding-top: calc(var(--header-h) + clamp(26px, 5vw, 56px));
  padding-bottom: clamp(48px, 9vw, 120px);
  overflow-x: hidden;
}

.page-contact .container {
  position: relative;
}

.page-contact .section-title {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.14;
  font-size: clamp(23px, 3.6vw, 38px);
  color: var(--cream);
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 22ch;
}

.page-contact .eyebrow {
  margin-bottom: 12px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-bottom: clamp(30px, 5vw, 54px);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.06;
  font-size: clamp(32px, 7.2vw, 62px);
  color: var(--cream);
  margin: 0 0 clamp(16px, 2.6vw, 24px);
  max-width: 15ch;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 三张联系卡 ---------- */
.page-contact .contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  background: var(--ink-mid);
  border: 1px solid var(--line-soft);
  padding: clamp(22px, 3.4vw, 32px);
  transition: transform 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 24px 24px 0;
  border-color: transparent var(--ink-deep) transparent transparent;
  pointer-events: none;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--line);
  background: #13294a;
}

.page-contact .contact-card__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .contact-card__tag--amber {
  color: var(--amber);
}

.page-contact .contact-card__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 23px);
  color: var(--cream);
}

.page-contact .contact-card__value {
  display: block;
  margin: 0 0 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-card__value--text {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.72;
  letter-spacing: 0;
  color: var(--text);
  word-break: normal;
}

.page-contact .contact-card__note {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.76;
  color: var(--text-dim);
}

.page-contact .contact-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .contact-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.64;
  color: var(--text-dim);
}

.page-contact .contact-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.85;
}

.page-contact .contact-card--phone {
  border-color: rgba(242, 167, 59, 0.5);
  background: linear-gradient(180deg, rgba(242, 167, 59, 0.09) 0%, var(--ink-mid) 58%);
}

.page-contact .contact-card--phone:hover,
.page-contact .contact-card--phone:focus-within {
  border-color: var(--amber);
  background: linear-gradient(180deg, rgba(242, 167, 59, 0.16) 0%, #13294a 58%);
}

.page-contact .contact-card--phone .contact-card__value {
  color: var(--amber);
}

.page-contact .contact-card--phone .contact-card__list li::before {
  background: var(--amber);
}

/* ---------- 渠道示意 ---------- */
.page-contact .channels-visual {
  padding-top: clamp(34px, 6vw, 64px);
}

.page-contact .channels-visual .media-frame__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--stone);
  text-align: right;
}

/* ---------- 通用分区带 ---------- */
.page-contact .section-band {
  margin-top: clamp(40px, 7vw, 84px);
  padding-top: clamp(40px, 7vw, 84px);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: clamp(10px, 2vw, 22px);
  row-gap: 7px;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .prep-item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-contact .prep-item__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-contact .prep-item h3 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(16px, 1.9vw, 19px);
  color: var(--cream);
}

.page-contact .prep-item p {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--text-dim);
}

/* ---------- 四步流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3.6vw, 34px);
}

.page-contact .flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: clamp(14px, 2.6vw, 26px);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 54px;
  bottom: calc(-1 * clamp(20px, 3.6vw, 34px) - 4px);
  width: 1px;
  background: linear-gradient(180deg, rgba(47, 216, 216, 0.55), rgba(242, 167, 59, 0.3));
}

.page-contact .flow__step:last-child::before {
  display: none;
}

.page-contact .flow__num {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  background: rgba(47, 216, 216, 0.08);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 13px 100%, 0 calc(100% - 13px));
}

.page-contact .flow__body {
  padding-bottom: 4px;
}

.page-contact .flow__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 21px);
  color: var(--cream);
}

.page-contact .flow__body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text-dim);
}

.page-contact .flow__body p:last-child {
  margin-bottom: 0;
}

.page-contact .flow__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 216, 216, 0.4);
}

.page-contact .flow__body a:hover {
  color: var(--cream);
  border-bottom-color: var(--amber);
}

/* ---------- 响应时段 ---------- */
.page-contact .hours {
  display: grid;
  gap: 12px;
}

.page-contact .hours__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.8vw, 30px);
  background: rgba(78, 107, 90, 0.14);
  border-left: 3px solid var(--moss-soft);
  transition: background-color 0.2s ease;
}

.page-contact .hours__item--amber {
  background: rgba(242, 167, 59, 0.1);
  border-left-color: var(--amber);
}

.page-contact .hours__item:hover {
  background: rgba(78, 107, 90, 0.22);
}

.page-contact .hours__item--amber:hover {
  background: rgba(242, 167, 59, 0.17);
}

.page-contact .hours__key {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.8vw, 26px);
  letter-spacing: 0.04em;
  color: var(--moss-soft);
}

.page-contact .hours__item--amber .hours__key {
  color: var(--amber);
}

.page-contact .hours__text h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  color: var(--cream);
}

.page-contact .hours__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-contact .hours__foot {
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .hours__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 216, 216, 0.4);
}

.page-contact .hours__foot a:hover {
  color: var(--cream);
  border-bottom-color: var(--amber);
}

/* ---------- 合作生态 ---------- */
.page-contact .eco-lead {
  max-width: 66ch;
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .eco-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px);
  background: linear-gradient(160deg, rgba(16, 38, 63, 0.92), rgba(10, 26, 47, 0.92));
  border: 1px solid var(--line-soft);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-contact .eco-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .eco-card:nth-child(2)::before {
  background: var(--amber);
}

.page-contact .eco-card:nth-child(3)::before {
  background: var(--moss-soft);
}

.page-contact .eco-card:nth-child(4)::before {
  background: var(--clay);
}

.page-contact .eco-card:hover {
  transform: translateY(-3px);
  border-color: var(--line);
}

.page-contact .eco-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  color: var(--cream);
}

.page-contact .eco-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--text-dim);
}

.page-contact .eco-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 44px);
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .eco-stats__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 150px;
}

.page-contact .eco-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 30px);
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .eco-stats__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 页尾呼吸区 ---------- */
.page-contact .contact-close {
  margin-top: clamp(52px, 8vw, 104px);
  padding-top: clamp(36px, 6vw, 68px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-close__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-contact .contact-close__text h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(22px, 3vw, 32px);
  color: var(--cream);
}

.page-contact .contact-close__text p {
  margin: 0 0 12px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .contact-close__text p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-close__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 216, 216, 0.4);
}

.page-contact .contact-close__text a:hover {
  color: var(--cream);
  border-bottom-color: var(--amber);
}

.page-contact .closing-line {
  margin: clamp(44px, 8vw, 96px) 0 0;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .closing-line a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 167, 59, 0.45);
}

.page-contact .closing-line a:hover {
  color: var(--cream);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 5vw, 64px);
  }

  .page-contact .prep-item:nth-child(1) {
    border-top: 1px solid var(--line-soft);
  }

  .page-contact .prep-item:nth-child(2) {
    border-top: 1px solid var(--line-soft);
  }

  .page-contact .hours__item {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: center;
    gap: clamp(16px, 3vw, 34px);
  }

  .page-contact .eco-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-card:nth-child(1) {
    margin-top: 46px;
  }

  .page-contact .contact-card:nth-child(3) {
    margin-top: 86px;
  }

  .page-contact .flow {
    max-width: 880px;
  }

  .page-contact .contact-close__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-close__media {
    order: 0;
  }
}

@media (min-width: 1180px) {
  .page-contact .eco-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .eco-card {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .eco-card:hover {
    transform: none;
  }
}