.page-contact {
  --ct-notch: 20px;
  --ct-hair: rgba(108, 138, 166, 0.32);
  --ct-shadow: 0 20px 44px -30px rgba(16, 27, 38, 0.55);
  color: var(--c-ink);
  background: var(--c-paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-head);
  color: var(--c-paper);
  padding: clamp(24px, 4.5vw, 44px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -35%;
  right: -18%;
  width: 74%;
  height: 200%;
  background: linear-gradient(120deg, rgba(15, 138, 117, 0.5) 0%, rgba(18, 60, 122, 0) 64%);
  transform: rotate(-16deg);
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: -10%;
  bottom: -46%;
  width: 62%;
  height: 130%;
  background: linear-gradient(140deg, rgba(227, 168, 59, 0.26) 0%, rgba(227, 168, 59, 0) 70%);
  transform: rotate(-16deg);
  pointer-events: none;
}

.page-contact .ct-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(244, 246, 242, 0.7);
}

.page-contact .breadcrumb a {
  color: rgba(244, 246, 242, 0.92);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 246, 242, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--c-gold);
  border-bottom-color: var(--c-gold);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(26px, 4.5vw, 52px);
}

.page-contact .ct-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--c-gold);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 18ch;
}

.page-contact .ct-hero .lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 246, 242, 0.88);
}

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

.page-contact .ct-hero__board {
  position: relative;
  align-self: start;
  padding: 22px 22px 24px;
  background: rgba(244, 246, 242, 0.08);
  border: 1px solid rgba(244, 246, 242, 0.22);
  clip-path: polygon(
    var(--ct-notch) 0,
    100% 0,
    100% calc(100% - var(--ct-notch)),
    calc(100% - var(--ct-notch)) 100%,
    0 100%,
    0 var(--ct-notch)
  );
}

.page-contact .ct-board__title {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-contact .ct-board__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-board__list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(244, 246, 242, 0.24);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(244, 246, 242, 0.84);
}

.page-contact .ct-board__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .ct-board__list .mono {
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--c-gold);
}

/* ---------- 通用区块 ---------- */
.page-contact .section {
  padding: clamp(46px, 7vw, 86px) 0;
}

.page-contact .ct-sec-head {
  max-width: 720px;
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-contact .ct-sec-head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-teal);
}

.page-contact .section-title {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.24;
  letter-spacing: -0.005em;
}

.page-contact .ct-sec-head .lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16, 27, 38, 0.78);
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-tracks {
  background: var(--c-paper);
}

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

.page-contact .ct-track {
  --ct-track-color: var(--c-teal);
  background: var(--c-paper);
  border: 1px solid var(--ct-hair);
  border-top: 4px solid var(--ct-track-color);
  clip-path: polygon(
    0 0,
    calc(100% - var(--ct-notch)) 0,
    100% var(--ct-notch),
    100% 100%,
    var(--ct-notch) 100%,
    0 calc(100% - var(--ct-notch))
  );
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-track--blue {
  --ct-track-color: var(--c-blue);
}

.page-contact .ct-track--brick {
  --ct-track-color: var(--c-brick);
}

.page-contact .ct-track:hover {
  transform: translateY(-2px);
}

.page-contact .ct-track__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  padding: 20px 20px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-track__head:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -3px;
}

.page-contact .ct-track__idx {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ct-track-color);
}

.page-contact .ct-track__name {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.3;
}

.page-contact .ct-track__for {
  flex: 1 1 100%;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(16, 27, 38, 0.74);
}

.page-contact .ct-track__toggle {
  flex: 1 1 100%;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-contact .ct-track__toggle::after {
  content: " ＋";
}

.page-contact .ct-track[open] .ct-track__toggle::after {
  content: " －";
}

.page-contact .ct-track__body {
  padding: 0 20px 22px;
}

.page-contact .ct-track__body > p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(16, 27, 38, 0.82);
}

.page-contact .ct-track__meta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 12px;
  margin: 0 0 16px;
  padding: 0;
}

.page-contact .ct-track__meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
  padding-top: 2px;
}

.page-contact .ct-track__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .ct-track__need {
  margin: 0;
  padding: 9px 12px;
  background: var(--c-mint);
  color: var(--c-blue);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
}

/* ---------- 联系与推进 ---------- */
.page-contact .ct-reach {
  background: var(--c-sand);
}

.page-contact .ct-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

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

.page-contact .ct-channel {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  background: var(--c-paper);
  border-left: 4px solid var(--c-teal);
}

.page-contact .ct-channel--phone {
  border-left-color: var(--c-blue);
}

.page-contact .ct-channel--addr {
  border-left-color: var(--c-gold);
}

.page-contact .ct-channel__key {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-contact .ct-channel__val {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  line-height: 1.5;
  color: var(--c-blue);
  text-decoration: none;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__val:hover {
  color: var(--c-teal);
  text-decoration: underline;
}

.page-contact .ct-channel__val--text {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--c-ink);
  word-break: normal;
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(16, 27, 38, 0.76);
}

.page-contact .ct-latency {
  margin-top: 30px;
}

.page-contact .ct-latency__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-contact .ct-latency .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-latency .tab-btn {
  padding: 9px 15px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--c-ink);
  background: transparent;
  border: 1px solid var(--ct-hair);
  border-radius: 0;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-latency .tab-btn.is-active {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: var(--c-paper);
}

.page-contact .ct-latency .tab-btn:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

.page-contact .tab-panel {
  display: block;
}

.js-ready .page-contact .tab-panel {
  display: none;
}

.js-ready .page-contact .tab-panel.is-active {
  display: block;
}

.page-contact .ct-table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .ct-table__cap {
  padding: 0 0 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-contact .ct-table th,
.page-contact .ct-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--ct-hair);
  line-height: 1.6;
}

.page-contact .ct-table thead th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-blue);
  background: var(--c-mint);
  border-bottom-color: rgba(15, 138, 117, 0.3);
}

.page-contact .ct-table tbody th {
  font-weight: 400;
  color: var(--c-ink);
}

.page-contact .ct-table tbody tr:nth-child(even) {
  background: rgba(214, 239, 231, 0.5);
}

.page-contact .ct-table tbody tr:hover {
  background: rgba(227, 168, 59, 0.16);
}

.page-contact .ct-table td {
  font-family: var(--font-mono);
  color: var(--c-blue);
}

.page-contact .ct-subtitle {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.3;
}

.page-contact .ct-reach__intro {
  margin: 12px 0 26px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16, 27, 38, 0.78);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-contact .ct-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 20px;
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 0;
  width: 1px;
  background: var(--ct-hair);
}

.page-contact .ct-step:last-child {
  padding-bottom: 0;
}

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

.page-contact .ct-step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--c-blue);
  color: var(--c-paper);
  font-size: 13px;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-contact .ct-step:nth-child(2) .ct-step__num {
  background: var(--c-teal);
}

.page-contact .ct-step:nth-child(3) .ct-step__num {
  background: var(--c-gold);
  color: var(--c-ink);
}

.page-contact .ct-step:nth-child(4) .ct-step__num {
  background: var(--c-ink);
}

.page-contact .ct-step__body h4 {
  margin: 4px 0 6px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
}

.page-contact .ct-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(16, 27, 38, 0.78);
}

.page-contact .ct-flow-figure {
  margin: 26px 0 0;
}

.page-contact .ct-flow-figure figcaption,
.page-contact .ct-visit__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .media-frame {
  overflow: hidden;
  background: var(--c-mint);
}

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

/* ---------- 来访与接待 ---------- */
.page-contact .ct-visit {
  background: var(--c-paper);
}

.page-contact .ct-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .ct-visit__figure {
  margin: 0;
  position: relative;
}

.page-contact .ct-visit__figure .media-frame {
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 34px),
    calc(100% - 34px) 100%,
    0 100%
  );
}

.page-contact .ct-visit__info .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-teal);
}

.page-contact .ct-visit__info .section-title {
  margin-top: 12px;
}

.page-contact .ct-visit__info > p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16, 27, 38, 0.8);
  max-width: 40ch;
}

.page-contact .ct-visit__dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-visit__dl dt {
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.page-contact .ct-visit__dl dd {
  margin: 4px 0 0;
  padding-bottom: 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-visit__tip {
  margin: 22px 0 0;
  padding: 14px 16px;
  background: var(--c-mint);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-contact .ct-visit__tip a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 60, 122, 0.4);
}

.page-contact .ct-visit__tip a:hover {
  border-bottom-color: var(--c-gold);
  color: var(--c-teal);
}

/* ---------- 渠道伙伴常见问题 ---------- */
.page-contact .ct-partner {
  background: linear-gradient(150deg, #0C2A57 0%, #123C7A 46%, #0F8A75 130%);
  color: var(--c-paper);
}

.page-contact .ct-sec-head--light .eyebrow {
  color: var(--c-gold);
}

.page-contact .ct-sec-head--light .section-title {
  color: var(--c-paper);
}

.page-contact .ct-sec-head--light .lede {
  color: rgba(244, 246, 242, 0.82);
}

.page-contact .ct-faq {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .ct-faq__item {
  border: 1px solid rgba(244, 246, 242, 0.22);
  background: rgba(244, 246, 242, 0.06);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ct-faq__item[open] {
  border-color: rgba(227, 168, 59, 0.62);
  background: rgba(244, 246, 242, 0.1);
}

.page-contact .ct-faq__item > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .ct-faq__item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-faq__item > summary:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -3px;
}

.page-contact .ct-faq__q {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-paper);
}

.page-contact .ct-faq__sign {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

.page-contact .ct-faq__sign::after {
  content: " ＋";
}

.page-contact .ct-faq__item[open] .ct-faq__sign::after {
  content: " －";
}

.page-contact .ct-faq__item > p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244, 246, 242, 0.84);
  max-width: 68ch;
}

.page-contact .ct-partner__cta {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid rgba(244, 246, 242, 0.22);
  display: grid;
  gap: 20px;
}

.page-contact .ct-partner__cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 246, 242, 0.88);
  max-width: 60ch;
}

.page-contact .ct-partner__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 520px) {
  .page-contact .ct-table td {
    white-space: normal;
  }

  .page-contact .ct-table th,
  .page-contact .ct-table td {
    padding: 10px 9px;
    font-size: 13px;
  }
}

@media (min-width: 760px) {
  .page-contact .ct-tracks__row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-visit__dl {
    grid-template-columns: minmax(120px, 0.32fr) minmax(0, 1fr);
    column-gap: 20px;
  }

  .page-contact .ct-visit__dl dt {
    padding-top: 16px;
    border-bottom: 1px solid var(--ct-hair);
  }

  .page-contact .ct-visit__dl dd {
    padding-top: 14px;
    margin-top: 0;
    border-bottom: 1px solid var(--ct-hair);
  }

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

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-contact .ct-partner__cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-reach__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-track,
  .page-contact .ct-latency .tab-btn,
  .page-contact .breadcrumb a,
  .page-contact .ct-faq__item {
    transition: none;
  }

  .page-contact .ct-track:hover {
    transform: none;
  }
}