.page-contact {
  --contact-ink-soft: #45596b;
  --contact-ink-strong: #24384a;
  background: var(--paper);
  color: var(--midnight);
}

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

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(34px, 6vw, 68px);
  color: var(--paper);
  background:
    radial-gradient(110% 130% at 88% -15%, rgba(18, 200, 216, 0.24), transparent 56%),
    linear-gradient(172deg, var(--midnight) 0%, var(--ink) 100%);
}

.page-contact .hero-frame {
  position: relative;
  border: 1px solid var(--line-dark);
  padding: clamp(20px, 4vw, 44px);
}

.page-contact .hero-frame::before,
.page-contact .hero-frame::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--green);
}

.page-contact .hero-frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .hero-frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

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

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(233, 255, 244, 0.6);
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-contact .crumbs__link {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .crumbs__link:hover {
  border-bottom-color: var(--green);
}

.page-contact .hero-copy .eyebrow {
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-contact h1 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.12;
  letter-spacing: 0.02em;
  font-weight: 700;
  max-width: 15em;
}

.page-contact .hero-lede {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(233, 255, 244, 0.82);
  max-width: 40em;
}

.page-contact .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: clamp(22px, 3.5vw, 32px) 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(233, 255, 244, 0.62);
}

.page-contact .hero-meta .mono {
  color: var(--volt);
  margin-right: 6px;
}

.page-contact .hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-dark);
  padding: 8px;
}

.page-contact .hero-media .media__img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}

.page-contact .hero-media .media__cap {
  padding-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(233, 255, 244, 0.55);
}

/* ---------- 通用小标题 ---------- */
.page-contact .sec-head {
  max-width: 54em;
  margin-bottom: clamp(22px, 3.6vw, 36px);
}

.page-contact .sec-head--narrow {
  max-width: 44em;
}

.page-contact .sec-head .eyebrow {
  color: var(--green-deep);
  margin-bottom: 12px;
}

.page-contact h2 {
  margin: 0 0 12px;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.25;
  letter-spacing: 0.015em;
}

.page-contact .sec-lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
}

/* ---------- 渠道卡 ---------- */
.page-contact .contact-channels {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-contact .channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: start;
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--hair);
  background: #ffffff;
}

.page-contact .channel__tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .channel__title {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-contact .channel__value {
  margin: 0 0 16px;
  font-weight: 700;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .channel__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--contact-ink-soft);
}

.page-contact .channel--mail {
  min-height: 320px;
  color: var(--paper);
  border-color: rgba(18, 209, 142, 0.42);
  background:
    linear-gradient(158deg, var(--midnight) 0%, var(--ink) 100%);
  box-shadow: 0 1px 0 rgba(11, 27, 43, 0.06);
}

.page-contact .channel--mail .channel__tag {
  color: rgba(233, 255, 244, 0.55);
}

.page-contact .channel--mail .channel__value {
  font-size: clamp(15px, 2.1vw, 19px);
  color: var(--green);
}

.page-contact .channel--mail .channel__note {
  color: rgba(233, 255, 244, 0.8);
}

.page-contact .channel__copy {
  margin: auto 0 0;
  padding-top: 18px;
  align-self: flex-start;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--volt);
  border-bottom: 1px dashed rgba(223, 255, 79, 0.7);
}

.page-contact .channel--phone {
  min-height: 266px;
  border-color: rgba(11, 27, 43, 0.18);
  background: var(--mint);
}

.page-contact .channel--phone .channel__title {
  color: var(--green-deep);
}

.page-contact .channel__value--tel {
  font-size: clamp(20px, 2.6vw, 25px);
  letter-spacing: 0.03em;
}

.page-contact .channel--addr {
  min-height: 226px;
  border-color: var(--line);
}

.page-contact .channel--addr .channel__title {
  color: var(--cyan);
}

.page-contact .channel__addr {
  margin: 0 0 14px;
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 700;
  line-height: 1.65;
  color: var(--contact-ink-strong);
}

/* ---------- 提问准备 ---------- */
.page-contact .contact-prep {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-contact .prep-lead h2 {
  margin-top: 10px;
}

.page-contact .prep-lead p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
}

.page-contact .prep-aside {
  margin-top: 22px;
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--green);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--contact-ink-soft);
}

.page-contact .prep-aside__k {
  margin: 0 0 6px;
  font-weight: 700;
  color: var(--midnight);
}

.page-contact .prep-aside p {
  margin: 0 0 10px;
}

.page-contact .link-arrow {
  color: var(--green-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 143, 99, 0.45);
}

.page-contact .link-arrow:hover {
  border-bottom-color: var(--green-deep);
}

.page-contact .prep {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  border-top: 2px solid var(--midnight);
}

.page-contact .prep__row {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 6px 12px;
  padding: 16px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .prep__row:nth-child(odd) {
  background: rgba(223, 245, 231, 0.75);
}

.page-contact .prep__num {
  font-size: 12px;
  color: var(--green-deep);
  padding-top: 4px;
}

.page-contact .prep__type {
  font-weight: 700;
  color: var(--contact-ink-strong);
}

.page-contact .prep__send {
  grid-column: 2;
  color: var(--contact-ink-soft);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-contact .rhythm {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
}

.page-contact .rhythm__item {
  padding-top: 16px;
  border-top: 3px solid var(--green);
}

.page-contact .rhythm__item--rush {
  border-top-color: var(--orange);
}

.page-contact .rhythm__item--off {
  border-top-color: var(--cyan);
}

.page-contact .rhythm__time {
  margin: 0 0 6px;
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .rhythm__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-contact .rhythm__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--contact-ink-soft);
}

/* ---------- 标题写法折叠 ---------- */
.page-contact .contact-ask {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-contact .ask-list {
  border-top: 1px solid var(--line);
}

.page-contact .ask {
  border-bottom: 1px solid var(--line);
}

.page-contact .ask__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ask__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--green-deep);
}

.page-contact .ask[open] .ask__sum::after {
  content: "\2212";
}

.page-contact .ask[open] .ask__sum {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .ask__num {
  font-size: 12px;
  color: var(--green-deep);
}

.page-contact .ask__name {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  color: var(--midnight);
}

.page-contact .ask__tip {
  flex: 1 1 100%;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--steel);
}

.page-contact .ask__body {
  padding: 18px 4px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
}

.page-contact .ask__body p {
  margin: 0 0 12px;
  max-width: 64em;
}

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

.page-contact .ask__body a {
  color: var(--green-deep);
  border-bottom: 1px solid rgba(10, 143, 99, 0.45);
  text-decoration: none;
}

.page-contact .ask__more {
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

/* ---------- 长沙团队 ---------- */
.page-contact .contact-ops {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-contact .ops-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
}

.page-contact .ops-copy .eyebrow {
  color: var(--green-deep);
  margin-bottom: 12px;
}

.page-contact .ops-copy p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--contact-ink-soft);
  max-width: 44em;
}

.page-contact .ops-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ops-tags li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.6;
  color: var(--contact-ink-soft);
}

.page-contact .ops-tags .mono {
  min-width: 34px;
  font-size: 20px;
  font-weight: 700;
  color: var(--midnight);
}

/* ---------- 深色收束 ---------- */
.page-contact .contact-outro {
  padding: clamp(36px, 6vw, 74px) 0;
  color: var(--paper);
  background:
    radial-gradient(90% 120% at 10% 110%, rgba(18, 209, 142, 0.2), transparent 58%),
    linear-gradient(118deg, var(--ink) 0%, var(--midnight) 58%, #0d3540 100%);
}

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

.page-contact .outro-copy .eyebrow {
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-contact .outro-copy h2 {
  color: var(--paper);
}

.page-contact .outro-copy p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(233, 255, 244, 0.8);
  max-width: 40em;
}

.page-contact .outro-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .outro-media {
  margin: 0;
  border: 1px solid var(--line-dark);
  padding: 8px;
}

.page-contact .outro-media .media__img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.82;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .prep__row {
    grid-template-columns: 40px minmax(170px, 1fr) 1.55fr;
    align-items: baseline;
    gap: 4px 18px;
    padding: 18px 16px;
  }

  .page-contact .prep__send {
    grid-column: auto;
  }

  .page-contact .ask__tip {
    flex: 1 1 auto;
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-contact .hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-contact .channels {
    grid-template-columns: 1.05fr 0.92fr 1.3fr;
  }

  .page-contact .rhythm {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .ops-grid {
    grid-template-columns: 1.35fr 0.85fr;
    align-items: start;
  }

  .page-contact .outro-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

@media (min-width: 1080px) {
  .page-contact .prep-aside {
    margin-top: 44px;
  }

  .page-contact .channel--mail {
    min-height: 352px;
  }

  .page-contact .channel--phone {
    min-height: 286px;
  }
}
<<<END>>>