.page-contact {
  --co-card-w: 360px;
  --co-gap: clamp(22px, 3vw, 42px);
  --co-hair: rgba(125, 247, 222, 0.18);
  --co-body: rgba(232, 244, 238, 0.86);
  padding-bottom: clamp(40px, 5vw, 72px);
  color: var(--paper);
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.page-contact p {
  margin: 0;
}

.page-contact .breadcrumb {
  padding-top: 18px;
  padding-bottom: 4px;
  font-size: 12px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .chapter-band {
  margin-bottom: clamp(28px, 4vw, 48px);
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(44px, 7vw, 96px) 0 clamp(44px, 6vw, 84px);
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(79, 240, 208, 0.16), transparent 62%),
    var(--ink);
}

.page-contact .co-hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .co-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  filter: saturate(0.72);
}

.page-contact .co-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(7, 19, 15, 0.42) 0%, rgba(7, 19, 15, 0.74) 58%, var(--ink) 100%),
    linear-gradient(116deg, rgba(7, 19, 15, 0.94) 0 40%, rgba(7, 19, 15, 0.08) 74%);
}

.page-contact .co-hero-inner {
  position: relative;
}

.page-contact .co-hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  border-radius: var(--radius);
}

.page-contact .co-hero h1 {
  margin-top: 18px;
  max-width: 16em;
  font-size: clamp(29px, 5.6vw, 56px);
  color: var(--paper);
}

.page-contact .co-lede {
  margin-top: 20px;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--co-body);
}

.page-contact .co-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .co-hero-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-hero-facts li {
  padding-left: 16px;
  border-left: 1px solid rgba(125, 247, 222, 0.3);
}

.page-contact .co-hero-facts .data-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .co-fact-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 通用区块标题 ---------- */
.page-contact .co-sec-head {
  max-width: 660px;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-contact .co-sec-head h2,
.page-contact .co-process-body h2,
.page-contact .co-contact-main h2,
.page-contact .co-org h2 {
  font-size: clamp(24px, 3.4vw, 38px);
  color: var(--paper);
}

.page-contact .co-sec-lede {
  margin-top: 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact a {
  color: var(--cyan-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 247, 222, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ---------- 三种合作方式 ---------- */
.page-contact .co-ways {
  padding: clamp(40px, 5.5vw, 76px) 0;
  background: var(--ink);
}

.page-contact .co-way-list {
  border-top: 1px solid var(--grid);
}

.page-contact .co-way {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 26px 0;
  border-bottom: 1px solid var(--grid);
  transition: background 0.24s var(--ease);
}

.page-contact .co-way:hover {
  background: linear-gradient(90deg, rgba(79, 240, 208, 0.06), transparent 62%);
}

.page-contact .co-way-idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .co-way h3 {
  font-size: clamp(19px, 2.2vw, 23px);
  color: var(--paper);
}

.page-contact .co-way-who {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .co-way-body > p:not(.co-way-who):not(.co-way-out) {
  margin-top: 12px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--co-body);
}

.page-contact .co-way-out {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--orange);
  background: rgba(18, 48, 40, 0.62);
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .co-way-out span {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  line-height: 1.9;
  color: var(--orange);
}

/* ---------- 合作流程 ---------- */
.page-contact .co-process {
  padding: clamp(40px, 5.5vw, 76px) 0;
  background: linear-gradient(180deg, var(--band) 0%, var(--ink) 76%);
}

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

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

.page-contact .co-steps li {
  padding: 20px 0;
  border-top: 1px solid var(--grid);
}

.page-contact .co-step-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .co-steps h3 {
  font-size: 16px;
  color: var(--paper);
}

.page-contact .co-steps p {
  margin-top: 8px;
  max-width: 32em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .co-process-figure {
  margin: 0;
  border: 1px solid var(--grid);
  background: var(--panel);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .co-process-figure img {
  width: 100%;
  object-fit: cover;
}

.page-contact .co-process-figure .media-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 素材与能力 ---------- */
.page-contact .co-assets {
  padding: clamp(40px, 5.5vw, 76px) 0;
  background: var(--ink);
}

.page-contact .co-asset-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .co-asset {
  padding: 24px 20px;
  background: var(--panel);
  transition: background 0.24s var(--ease);
}

.page-contact .co-asset:hover {
  background: #0F2A21;
}

.page-contact .co-asset .data-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 2.8vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .co-unit {
  margin-left: 4px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--mist);
}

.page-contact .co-asset h3 {
  margin-top: 12px;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .co-asset p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--co-body);
}

/* ---------- 对接与联系 ---------- */
.page-contact .co-contact {
  padding: clamp(40px, 5.5vw, 76px) 0;
  background: linear-gradient(180deg, var(--ink) 0%, var(--band) 100%);
}

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

.page-contact .co-contact-main > p:not(.eyebrow):not(.co-hours) {
  margin-top: 16px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--co-body);
}

.page-contact .co-check-title {
  margin-top: 30px;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .co-check {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-check li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 16px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  background: rgba(12, 32, 25, 0.62);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .co-check li:hover,
.page-contact .co-check li:focus-within {
  border-color: var(--cyan);
  background: rgba(18, 48, 40, 0.72);
}

.page-contact .co-check-num {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--cyan-hi);
}

.page-contact .co-check-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .co-check-text {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .co-hours {
  margin-top: 24px;
  max-width: 34em;
  padding-top: 18px;
  border-top: 1px dashed var(--grid);
  font-size: 14px;
  line-height: 1.74;
  color: var(--mist);
}

/* 联系卡 */
.page-contact .co-card {
  padding: 22px 20px;
  border-radius: var(--radius);
}

.page-contact .co-card-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-contact .co-card-title {
  margin-top: 8px;
  font-size: 20px;
  color: var(--paper);
}

.page-contact .co-card-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label btn"
    "value btn";
  gap: 4px 10px;
  padding: 14px 0;
  border-top: 1px solid var(--co-hair);
}

.page-contact .co-card-row:first-of-type {
  margin-top: 12px;
}

.page-contact .co-card-row .contact-label {
  grid-area: label;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .co-card-row .contact-value {
  grid-area: value;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .co-card-row .copy-btn {
  grid-area: btn;
  align-self: center;
  padding: 6px 12px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(79, 240, 208, 0.45);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .co-card-row .copy-btn:hover {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .co-card-row .copy-btn.is-copied {
  color: var(--ink);
  background: var(--cyan-hi);
  border-color: var(--cyan-hi);
}

.page-contact .co-card-line {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--co-hair);
}

.page-contact .co-card-line .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .co-card-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .co-card .contact-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--co-hair);
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 机构信息 ---------- */
.page-contact .co-org {
  padding: clamp(36px, 4.5vw, 64px) 0 clamp(20px, 3vw, 40px);
  background: var(--ink);
}

.page-contact .co-org-list {
  margin: 22px 0 0;
  border-top: 1px solid var(--grid);
}

.page-contact .co-org-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .co-org-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .co-org-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .co-hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .co-hero-facts li {
    padding-left: 18px;
  }

  .page-contact .co-hero-facts li + li {
    border-left-color: rgba(125, 247, 222, 0.14);
  }

  .page-contact .co-way {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 24px;
    padding: 30px 0;
  }

  .page-contact .co-steps {
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }

  .page-contact .co-check {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .co-org-row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-contact .co-asset-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .page-contact .co-process-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .co-process-figure {
    margin-top: 44px;
  }

  .page-contact .co-check {
    grid-template-columns: 1fr;
  }

  .page-contact .co-asset-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-contact .co-contact-grid {
    grid-template-columns: minmax(0, 1fr) var(--co-card-w);
    align-items: start;
  }

  .page-contact .co-card {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .co-check {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-way,
  .page-contact .co-asset,
  .page-contact .co-check li,
  .page-contact a {
    transition: none;
  }
}