.page-contact {
  --lane-gap: clamp(14px, 2vw, 22px);
  --hair: rgba(233, 238, 247, .14);
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 100px);
}

.page-contact .shell {
  width: 100%;
  max-width: var(--shell-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 页头 ---------- */

.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  background: var(--night);
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
  padding-bottom: clamp(36px, 6vw, 80px);
}

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

.page-contact .contact-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-contact .contact-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(5, 10, 18, .58), rgba(11, 27, 51, .96));
}

.page-contact .contact-hero .shell {
  position: relative;
  padding-top: clamp(26px, 4.5vw, 54px);
}

.page-contact .contact-hero-body {
  max-width: 48rem;
  padding-block: clamp(24px, 4.5vw, 58px) clamp(4px, 1.6vw, 16px);
}

.page-contact h1 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.06;
  font-size: clamp(30px, 6.2vw, 68px);
  margin: 0 0 clamp(16px, 2.4vw, 26px);
}

.page-contact .lede {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 44rem;
}

.page-contact .lede--narrow {
  max-width: 38rem;
}

/* ---------- 三段不等宽联络带 ---------- */

.page-contact .contact-lanes {
  padding-block: clamp(44px, 7.5vw, 100px);
}

.page-contact .section-title {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.14;
  font-size: clamp(22px, 3.8vw, 40px);
  margin: 0 0 clamp(14px, 2vw, 22px);
}

.page-contact .contact-lanes .section-title {
  margin-bottom: clamp(20px, 3vw, 36px);
}

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

.page-contact .lane {
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.2vw, 14px);
  padding: clamp(22px, 3.4vw, 40px);
  border-radius: var(--radius);
  min-width: 0;
}

.page-contact .lane--mail {
  background: var(--board);
  color: var(--ink);
}

.page-contact .lane--phone {
  background: var(--panel);
  color: var(--white);
}

.page-contact .lane--addr {
  background: rgba(242, 245, 250, .04);
  border: 1px solid var(--hair);
  color: var(--white);
}

.page-contact .lane-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin: 0;
  color: var(--mist);
}

.page-contact .lane--mail .lane-label {
  color: rgba(11, 27, 51, .55);
}

.page-contact .lane-title {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.24;
  font-size: clamp(19px, 2.6vw, 26px);
  margin: 0;
}

.page-contact .lane-title--mono {
  font-family: var(--font-mono);
  letter-spacing: -.02em;
}

.page-contact .lane-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 22px);
  line-height: 1.4;
  margin: 0;
  word-break: break-word;
}

.page-contact .lane-value--mono {
  color: var(--red);
  font-weight: 700;
}

.page-contact .lane-text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
}

.page-contact .lane--mail .lane-text {
  color: rgba(11, 27, 51, .72);
}

.page-contact .lane-map {
  width: 100%;
  max-width: 220px;
  height: auto;
  margin-top: auto;
  padding-top: clamp(12px, 2vw, 22px);
  color: var(--white);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-rhythm {
  padding-block: clamp(40px, 7vw, 96px);
}

.page-contact .rhythm-steps {
  list-style: none;
  margin: clamp(24px, 3.4vw, 42px) 0 0;
  padding: 0;
}

.page-contact .rhythm-steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: clamp(12px, 2vw, 28px);
  padding-block: clamp(16px, 2.4vw, 26px);
  border-top: 1px solid var(--hair);
}

.page-contact .rhythm-steps li:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-contact .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--red);
  padding-top: 5px;
}

.page-contact .step-body strong {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(16px, 2.1vw, 20px);
  letter-spacing: -.01em;
  margin-bottom: 6px;
}

.page-contact .step-body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 合作咨询 ---------- */

.page-contact .contact-partner {
  padding-block: clamp(40px, 7vw, 96px);
  background: var(--night);
  border-radius: var(--radius);
  margin-inline: clamp(0px, 1.5vw, 18px);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-contact .partner-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

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

.page-contact .partner-copy p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 clamp(14px, 2vw, 22px);
}

.page-contact .partner-list {
  list-style: none;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  padding: 0;
  display: grid;
  gap: clamp(12px, 1.8vw, 18px);
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--blue);
}

.page-contact .partner-list li:nth-child(2)::before {
  background: var(--green);
}

.page-contact .partner-list li:nth-child(3)::before {
  background: var(--yellow);
}

.page-contact .partner-list strong {
  color: var(--white);
  font-weight: 800;
}

.page-contact .partner-note {
  font-size: 14px !important;
  color: var(--white) !important;
  padding-top: clamp(10px, 1.6vw, 16px);
  border-top: 1px solid var(--hair);
}

.page-contact .mono-inline {
  font-family: var(--font-mono);
  color: var(--red);
  word-break: break-all;
}

/* ---------- 自查清单 ---------- */

.page-contact .contact-checklist {
  padding-block: clamp(44px, 7.5vw, 104px);
}

.page-contact .checklist {
  list-style: none;
  margin: clamp(22px, 3vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 1.8vw, 20px);
}

.page-contact .checklist li {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 1.6vw, 18px);
  padding: clamp(14px, 2vw, 22px);
  background: rgba(242, 245, 250, .04);
  border: 1px solid var(--hair);
  border-radius: 18px;
}

.page-contact .ck-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--yellow);
  padding-top: 3px;
}

.page-contact .ck-text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
}

.page-contact .hand-note {
  margin: clamp(20px, 3vw, 34px) 0 0;
  font-family: var(--font-hand);
  font-size: clamp(17px, 2.2vw, 22px);
  color: var(--red);
  transform: rotate(-1.6deg);
  transform-origin: left center;
}

/* ---------- 收尾指引 ---------- */

.page-contact .contact-outro {
  padding-block: clamp(8px, 2vw, 20px) clamp(20px, 4vw, 48px);
}

.page-contact .outro-card {
  border-top: 1px solid var(--hair);
  padding-top: clamp(22px, 3vw, 36px);
}

.page-contact .outro-text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  max-width: 46rem;
}

.page-contact .outro-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(10px, 1.6vw, 16px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .checklist li:nth-child(even) {
    transform: translateY(clamp(14px, 3vw, 32px));
  }

  .page-contact .contact-checklist {
    padding-bottom: clamp(56px, 9vw, 124px);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-lanes-grid {
    grid-template-columns: 1.75fr 1.05fr 0.95fr;
    align-items: stretch;
  }

  .page-contact .lane--mail {
    padding-inline: clamp(28px, 3.6vw, 46px);
  }

  .page-contact .partner-grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-contact .partner-media {
    transform: translateY(-18px);
  }
}

@media (max-width: 420px) {
  .page-contact .rhythm-steps li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-contact .step-num {
    padding-top: 0;
  }
}