.page-contact {
  display: block;
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 88% 8%, rgba(200, 16, 46, .38), transparent 58%),
    linear-gradient(142deg, var(--navy) 0%, #14395e 56%, var(--navy-mid) 100%);
  color: var(--white);
  border-radius: 0 0 var(--r-xl) var(--r-xl);
}

.page-contact .co-hero__ghost {
  position: absolute;
  top: -14%;
  right: -3%;
  font-family: var(--font-mono);
  font-size: clamp(150px, 34vw, 320px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.04em;
  color: rgba(255, 255, 255, .06);
  pointer-events: none;
  user-select: none;
}

.page-contact .co-hero__path {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 1px;
  background-image: linear-gradient(90deg, rgba(255, 255, 255, .3) 0 8px, transparent 8px 20px);
  background-size: 20px 1px;
  opacity: .55;
}

.page-contact .co-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(24px, 4.5vw, 52px) clamp(20px, 4vw, 40px) clamp(38px, 6vw, 76px);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .6);
}

.page-contact .breadcrumbs a {
  color: rgba(255, 255, 255, .86);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .3);
  padding-bottom: 1px;
}

.page-contact .co-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--red-soft);
}

.page-contact .co-hero h1 {
  margin: 0 0 20px;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
}

.page-contact .co-hero__lead {
  max-width: 46ch;
  margin: 0 0 26px;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.85;
  color: rgba(255, 255, 255, .82);
}

.page-contact .co-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 0 28px;
  font-size: 12px;
}

.page-contact .co-hero__meta-key {
  font-family: var(--font-mono);
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .55);
}

.page-contact .co-hero__meta-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--white);
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--r-pill);
  padding: 4px 12px;
}

.page-contact .co-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .co-hero .btn {
  border-radius: var(--r-pill);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.page-contact .co-hero .btn--primary {
  background: var(--red);
  color: var(--white);
  border: 1px solid var(--red);
}

.page-contact .co-hero .btn--ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, .45);
}

/* ---------- 主体容器 ---------- */
.page-contact .co-body {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(34px, 6vw, 72px) clamp(20px, 4vw, 40px) 0;
}

.page-contact .co-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 56px);
}

.page-contact .co-block {
  margin-top: clamp(40px, 7vw, 88px);
}

.page-contact h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--navy);
}

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

.page-contact .prose {
  max-width: 42ch;
  margin: 0 0 clamp(20px, 3vw, 28px);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .co-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray);
}

.page-contact .co-note a {
  color: var(--navy-mid);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 78, 121, .3);
}

.page-contact .co-note--end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .pill-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--r-pill);
  background: var(--mist);
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pill-link:hover {
  background: var(--red);
  color: var(--white);
}

/* ---------- 合作方向卡 ---------- */
.page-contact .track-card {
  --bar: var(--red);
  position: relative;
  margin-bottom: 16px;
  padding: clamp(20px, 3vw, 28px) clamp(20px, 3vw, 28px) clamp(18px, 2.6vw, 24px) clamp(28px, 4vw, 38px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-panel);
}

.page-contact .track-card::before {
  content: "";
  position: absolute;
  top: 22px;
  bottom: 22px;
  left: 0;
  width: 6px;
  border-radius: 0 var(--r-pill) var(--r-pill) 0;
  background: var(--bar);
}

.page-contact .track-card--content {
  --bar: var(--navy-mid);
}

.page-contact .track-card--nav {
  --bar: var(--green);
}

.page-contact .track-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
}

.page-contact .track-card__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--bar);
  background: var(--cream);
  border-radius: var(--r-pill);
  padding: 4px 10px;
}

.page-contact .track-card__tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gray);
}

.page-contact .track-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 3vw, 21px);
  line-height: 1.4;
  color: var(--navy);
}

.page-contact .track-card__fit {
  margin: 0 0 12px;
  padding-left: 14px;
  border-left: 2px solid var(--red-soft);
  font-size: 14px;
  line-height: 1.75;
  color: var(--navy-mid);
}

.page-contact .track-card p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .track-card__meta {
  margin: 0;
  font-size: 13px;
  color: var(--gray);
}

.page-contact .track-card__meta .is-mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--red);
  margin-right: 4px;
}

.page-contact .track-card--content .track-card__meta .is-mono {
  color: var(--navy-mid);
}

.page-contact .track-card--nav .track-card__meta .is-mono {
  color: var(--green);
}

/* ---------- 图 ---------- */
.page-contact .co-figure {
  margin: clamp(22px, 3.5vw, 32px) 0 0;
}

.page-contact .co-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  background: var(--mist);
  object-fit: cover;
}

.page-contact .media__caption {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 步骤轨道 ---------- */
.page-contact .step-rail {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step-rail::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 26px;
  left: 19px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--red) 0%, var(--mist) 92%);
}

.page-contact .step {
  position: relative;
  padding-left: 54px;
  margin-bottom: 10px;
}

.page-contact .step__box {
  background: transparent;
}

.page-contact .step__head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 0 10px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .step__num {
  position: absolute;
  top: 8px;
  left: -54px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  background: var(--white);
  border: 2px solid var(--red);
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-contact .step__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--navy);
}

.page-contact .step__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--navy-mid);
  background: var(--mist);
  border-radius: var(--r-pill);
  padding: 4px 12px;
}

.page-contact .step__body {
  padding: 0 0 14px;
  border-bottom: 1px dashed var(--line);
}

.page-contact .step__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .step__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step__list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .step__list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.page-contact .co-col--b .side-note {
  margin-top: 22px;
  padding: 16px 20px;
  background: var(--cream);
  border-radius: var(--r-md);
  border-left: 4px solid var(--navy-mid);
}

.page-contact .co-col--b .side-note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .co-col--b .side-note a {
  color: var(--navy-mid);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 78, 121, .3);
}

/* ---------- 联系卡 ---------- */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 40px);
  border-radius: var(--r-xl);
  background: linear-gradient(150deg, var(--navy) 0%, #16375a 62%, #1b4670 100%);
  color: var(--white);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: auto -12% -42% -12%;
  height: 78%;
  background:
    radial-gradient(ellipse at 26% 100%, rgba(200, 16, 46, .3), transparent 62%),
    radial-gradient(ellipse at 80% 100%, rgba(23, 184, 144, .2), transparent 58%);
  pointer-events: none;
}

.page-contact .contact-row {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.page-contact .contact-row--last {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-row__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(255, 255, 255, .58);
}

.page-contact .contact-row__value {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .92);
}

.page-contact .copy-btn {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  justify-self: start;
  max-width: 100%;
  padding: 11px 18px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .08);
  color: var(--white);
  font-family: inherit;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .copy-btn__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.6vw, 18px);
  font-weight: 700;
  letter-spacing: -.01em;
  word-break: break-all;
}

.page-contact .copy-btn__hint {
  font-size: 12px;
  color: rgba(255, 255, 255, .66);
  white-space: nowrap;
}

.page-contact .copy-btn:hover {
  background: rgba(255, 255, 255, .16);
}

.page-contact .copy-btn.is-copied {
  background: var(--green);
  border-color: var(--green);
}

.page-contact .copy-btn.is-copied .copy-btn__hint {
  color: var(--white);
}

/* ---------- 地址与地区 ---------- */
.page-contact .region-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .region-item {
  display: grid;
  gap: 6px;
  padding: 18px clamp(18px, 3vw, 26px);
  background: var(--cream);
}

.page-contact .region-item__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gray);
}

.page-contact .region-item__value {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--navy);
}

.page-contact .region-item__value.is-mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--red);
}

/* ---------- 常见问题 ---------- */
.page-contact .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .faq-item {
  padding: 18px clamp(18px, 3vw, 24px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.page-contact .faq-item summary {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--navy);
}

.page-contact .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-item summary::before {
  content: "Q";
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.9;
  color: var(--red);
}

.page-contact .faq-item p {
  margin: 12px 0 0 22px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .faq-item a {
  color: var(--navy-mid);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 78, 121, .3);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-contact .region-card {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1024px) {
  .page-contact .co-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(44px, 4.5vw, 72px);
    align-items: start;
  }

  .page-contact .co-hero__inner {
    padding-left: clamp(20px, 4vw, 40px);
    padding-right: clamp(20px, 4vw, 40px);
  }

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

  .page-contact .contact-row {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: center;
    gap: 20px;
  }
}