.page-contact {
  background: var(--sea-900);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  background: var(--sea-900);
  padding: clamp(1.75rem, 5vw, 3rem) 0 clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--hair);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, var(--sea-950) 0%, var(--sea-800) 46%, var(--sea-600) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 56%, 0 100%);
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--grey-400);
}

.page-contact .crumb a {
  color: var(--grey-400);
  text-decoration: none;
}

.page-contact .crumb a:hover,
.page-contact .crumb a:focus-visible {
  color: var(--mint-400);
}

.page-contact .crumb [aria-current="page"] {
  color: var(--grey-100);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-contact .eyebrow {
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-400);
  margin: 0 0 0.9rem;
}

.page-contact h1 {
  font-family: var(--ff-title);
  font-weight: 800;
  font-size: clamp(1.95rem, 5.4vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper-050);
  margin: 0;
  max-width: 22ch;
}

.page-contact .lede {
  margin: 1.15rem 0 0;
  max-width: 46ch;
  font-size: clamp(0.95rem, 2.3vw, 1.05rem);
  line-height: 1.85;
  color: var(--grey-100);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.7rem;
}

.page-contact .hero-stamp {
  position: relative;
  background: rgba(6, 23, 35, 0.74);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--orange-500);
  padding: 1.1rem 1.2rem 1.25rem;
}

.page-contact .hero-stamp__top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.6rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint-400);
}

.page-contact .hero-stamp__list {
  margin: 0;
}

.page-contact .hero-stamp__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.9rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--hair-soft);
}

.page-contact .hero-stamp__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .hero-stamp__row dt {
  font-size: 0.8rem;
  color: var(--grey-400);
  white-space: nowrap;
}

.page-contact .hero-stamp__row dd {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--paper-050);
  text-align: right;
}

/* ---------- 主体栅格 ---------- */
.page-contact .contact-layout {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
  padding: clamp(2.25rem, 6vw, 4rem) 0 0;
}

.page-contact .sec-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 0.85rem;
}

.page-contact .sec-num {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--orange-500);
}

.page-contact h2 {
  font-family: var(--ff-title);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.2vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper-050);
  margin: 0;
}

.page-contact h3 {
  font-family: var(--ff-title);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--paper-050);
  margin: 0 0 0.35rem;
}

/* ---------- 渠道卡 ---------- */
.page-contact .channels__intro,
.page-contact .coop__lede,
.page-contact .fix__lede,
.page-contact .tpl__lede {
  margin: 0 0 1.35rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--grey-400);
  max-width: 52ch;
}

.page-contact .chan-card {
  background: var(--sea-800);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--orange-500);
  padding: 1.1rem 1.25rem 1.2rem;
  margin-bottom: 0.85rem;
}

.page-contact .chan-card__label {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-400);
}

.page-contact .chan-card__value {
  margin: 0.5rem 0 0.55rem;
  font-family: var(--ff-mono);
  font-size: clamp(0.92rem, 2.6vw, 1.08rem);
  line-height: 1.6;
  color: var(--paper-050);
  overflow-wrap: anywhere;
}

.page-contact .chan-card__desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--grey-400);
}

.page-contact .chan-fig,
.page-contact .coop-fig {
  margin: 1.25rem 0 0;
  border: 1px solid var(--hair);
  background: var(--sea-950);
}

.page-contact .coop-fig {
  margin-top: 1.6rem;
}

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

.page-contact .media__note {
  display: block;
  padding: 0.6rem 0.85rem;
  border-top: 1px solid var(--hair-soft);
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--grey-400);
}

/* ---------- 右栏章节 ---------- */
.page-contact .contact-main > section + section {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--hair);
}

.page-contact .svc-list {
  display: grid;
  gap: 0.75rem;
}

.page-contact .svc {
  background: var(--sea-800);
  border: 1px solid var(--hair-soft);
  border-top: 2px solid var(--sea-600);
  padding: 1rem 1.1rem 1.05rem;
}

.page-contact .svc p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--grey-400);
}

/* ---------- 流程时间线 ---------- */
.page-contact .flow {
  position: relative;
  margin-top: 1.5rem;
  padding-left: 1.75rem;
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  left: 0.42rem;
  top: 0.7rem;
  bottom: 0.7rem;
  width: 2px;
  background: linear-gradient(180deg, var(--mint-400), var(--orange-500));
  opacity: 0.5;
}

.page-contact .flow__step {
  position: relative;
  border-bottom: 1px solid var(--hair-soft);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -1.56rem;
  top: 1.1rem;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--sea-900);
  border: 2px solid var(--mint-400);
}

.page-contact .flow__step > summary {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.85rem 1.5rem 0.85rem 0;
  cursor: pointer;
  list-style: none;
  color: var(--paper-050);
  font-weight: 600;
  font-size: 0.98rem;
}

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

.page-contact .flow__step > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--ff-mono);
  font-size: 0.95rem;
  color: var(--orange-300);
}

.page-contact .flow__step[open] > summary::after {
  content: "−";
}

.page-contact .flow__step > summary:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: 3px;
}

.page-contact .flow__num {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-contact .flow__body {
  margin: 0;
  padding: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--grey-400);
  max-width: 54ch;
}

/* ---------- 纠错清单 ---------- */
.page-contact .fix-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-contact .fix-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.7rem 0.9rem;
  background: var(--sea-800);
  border-left: 2px solid var(--mint-400);
  font-size: 0.89rem;
  line-height: 1.7;
  color: var(--grey-100);
}

.page-contact .fix-list .tag {
  flex: 0 0 auto;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--orange-300);
}

/* ---------- 时段卡 ---------- */
.page-contact .hours-grid {
  display: grid;
  gap: 0.85rem;
}

.page-contact .hours-card {
  background: var(--sea-800);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--sea-600);
  padding: 1rem 1.1rem 1.1rem;
}

.page-contact .hours-card__k {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint-400);
}

.page-contact .hours-card__v {
  margin: 0.4rem 0 0.45rem;
  font-family: var(--ff-mono);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--paper-050);
}

.page-contact .hours-card p:last-child {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--grey-400);
}

/* ---------- 邮件模板 ---------- */
.page-contact .tpl {
  border: 1px solid var(--hair);
  background: var(--sea-800);
}

.page-contact .tpl > summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--ff-mono);
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  color: var(--paper-050);
}

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

.page-contact .tpl > summary::before {
  content: "▸";
  color: var(--orange-500);
  font-size: 0.8rem;
}

.page-contact .tpl[open] > summary::before {
  content: "▾";
}

.page-contact .tpl > summary:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: -2px;
}

.page-contact .tpl__body {
  margin: 0;
  padding: 1rem 1.1rem 1.15rem;
  border-top: 1px solid var(--hair-soft);
  font-family: var(--ff-mono);
  font-size: 0.8rem;
  line-height: 1.95;
  color: var(--grey-100);
  background: var(--sea-950);
  white-space: pre-wrap;
  overflow-x: auto;
}

.page-contact .tpl__foot {
  margin: 1rem 0 0;
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--grey-400);
}

.page-contact .tpl__foot a,
.page-contact .legal-note a {
  color: var(--mint-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 224, 200, 0.4);
}

.page-contact .tpl__foot a:hover,
.page-contact .tpl__foot a:focus-visible,
.page-contact .legal-note a:hover,
.page-contact .legal-note a:focus-visible {
  color: var(--orange-300);
  border-bottom-color: var(--orange-300);
}

/* ---------- 备案带 ---------- */
.page-contact .legal-band {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding: clamp(1.9rem, 5vw, 3rem) 0 clamp(2.2rem, 5vw, 3rem);
  background: var(--grey-100);
  color: var(--ink-900);
}

.page-contact .legal-band h2 {
  color: var(--ink-900);
}

.page-contact .legal-band .sec-num {
  color: var(--sea-600);
}

.page-contact .legal-grid {
  display: grid;
  gap: 1.25rem;
}

.page-contact .legal-note {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: #3a4a56;
  max-width: 56ch;
}

.page-contact .legal-note:last-child {
  margin-bottom: 0;
}

.page-contact .legal-note a {
  color: var(--sea-700);
  border-bottom-color: rgba(15, 58, 87, 0.35);
}

.page-contact .legal-cards {
  display: grid;
  gap: 0.7rem;
}

.page-contact .legal-card {
  border: 1px solid rgba(10, 18, 24, 0.18);
  background: var(--paper-050);
  padding: 0.85rem 1rem 0.95rem;
}

.page-contact .legal-card__k {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #5b6f7e;
}

.page-contact .legal-card__v {
  margin: 0.4rem 0 0;
  font-family: var(--ff-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .svc-list,
  .page-contact .hours-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .legal-cards > :first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    align-items: start;
  }

  .page-contact .legal-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.25rem;
    align-items: start;
  }

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

@media (min-width: 980px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .channels {
    position: sticky;
    top: calc(var(--bar-h) + 1.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .flow__step::before,
  .page-contact .hero-stamp__top {
    transition: none;
  }
}
<<<END>>>