.page-contact {
  --ct-line: rgba(11, 15, 14, .14);
  --ct-line-strong: rgba(11, 15, 14, .38);
  --ct-line-light: rgba(244, 241, 234, .22);
  --ct-muted: rgba(11, 15, 14, .68);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏：框景联络主板 ---------- */

.page-contact .contact-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(1.6rem, 4vw, 2.6rem) clamp(2.6rem, 7vw, 5rem);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: 1.2rem;
}

.page-contact .contact-hero__frame {
  position: relative;
  padding: clamp(1.4rem, 4.5vw, 3.2rem) clamp(1.2rem, 4vw, 3rem) clamp(1.6rem, 4.5vw, 3rem);
  border: 1px solid var(--ct-line-light);
  background:
    linear-gradient(180deg, rgba(31, 111, 74, .26), rgba(11, 15, 14, 0) 62%);
}

.page-contact .contact-hero__frame::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 5px;
  background: repeating-linear-gradient(180deg, var(--turf) 0 7px, transparent 7px 17px);
  opacity: .6;
}

.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--turf), var(--signal));
}

.page-contact .contact-hero__title {
  margin: .7rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--step4);
  line-height: 1.02;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 40ch;
  font-size: var(--step0);
  line-height: 1.75;
  color: rgba(244, 241, 234, .82);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-contact .contact-hero__stamp {
  display: none;
  gap: 1.4rem;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--silver);
  justify-self: end;
}

/* ---------- 问题类型：说明牌竖排 ---------- */

.page-contact .contact-types {
  background: var(--paper);
}

.page-contact .type-rows {
  display: grid;
  gap: clamp(.9rem, 2.2vw, 1.3rem);
}

.page-contact .type-row {
  position: relative;
  display: grid;
  gap: .7rem;
  padding: clamp(1.1rem, 3vw, 1.7rem) clamp(1.1rem, 3vw, 1.7rem) clamp(1.1rem, 3vw, 1.7rem) clamp(1.6rem, 3.4vw, 2.2rem);
  background: var(--paper-warm);
  border: 1px solid var(--ct-line);
  box-shadow: 5px 5px 0 rgba(11, 15, 14, .055);
  scroll-margin-top: 5.5rem;
}

.page-contact .type-row::before {
  content: "";
  position: absolute;
  inset-block: 1.1rem;
  inset-inline-start: 0;
  width: 3px;
  background: var(--pitch);
}

.page-contact .type-row:nth-child(4)::before {
  background: var(--signal);
}

.page-contact .type-row__tag {
  display: flex;
  align-items: baseline;
  gap: .55rem;
}

.page-contact .type-row__no {
  font-family: var(--font-mono);
  font-size: var(--step1);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--pitch);
}

.page-contact .type-row__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step1);
  letter-spacing: .015em;
  color: var(--ink);
}

.page-contact .type-row__body p {
  margin: 0;
  max-width: 42ch;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--ct-muted);
}

/* ---------- 提交准备 ---------- */

.page-contact .contact-materials {
  background: var(--paper-warm);
  border-block: 1px solid var(--ct-line);
}

.page-contact .materials-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-contact .materials-lead {
  margin: 0 0 1.2rem;
  max-width: 38ch;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  line-height: 1.7;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .materials-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .85rem;
}

.page-contact .materials-list li {
  position: relative;
  padding-inline-start: 1.5rem;
  font-size: var(--step0);
  line-height: 1.72;
  color: var(--ct-muted);
}

.page-contact .materials-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: .62em;
  width: 10px;
  height: 2px;
  background: var(--turf);
}

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

.page-contact .shot-frame {
  margin: 0;
  border: 1px solid var(--ct-line-strong);
  background: var(--slate);
  padding: .55rem .55rem 0;
}

.page-contact .shot-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(.82) contrast(1.03);
}

.page-contact .shot-frame__caption {
  padding: .65rem .2rem .8rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--archive);
}

/* ---------- 联系方式 ---------- */

.page-contact .contact-reach {
  background: var(--archive);
  color: var(--paper);
}

.page-contact .contact-reach .section__title {
  color: var(--paper);
}

.page-contact .contact-reach .section__note {
  color: var(--silver);
}

.page-contact .reach-list {
  margin: 0;
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.5rem);
}

.page-contact .reach-item {
  display: grid;
  gap: .3rem;
  padding-block-start: .85rem;
  border-block-start: 1px solid rgba(244, 241, 234, .2);
}

.page-contact .reach-item dt {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .22em;
  color: var(--silver);
}

.page-contact .reach-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.7vw, 1.55rem);
  line-height: 1.45;
  letter-spacing: .015em;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .reach-note {
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
  max-width: 46ch;
  padding-block-start: 1rem;
  border-block-start: 2px solid var(--signal);
  font-size: var(--step0);
  line-height: 1.78;
  color: rgba(244, 241, 234, .78);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-rhythm {
  background: var(--paper);
}

.page-contact .rhythm {
  list-style: none;
  counter-reset: rhythm;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-contact .rhythm > li {
  position: relative;
  counter-increment: rhythm;
  padding: clamp(1rem, 2.6vw, 1.45rem) clamp(1rem, 2.6vw, 1.5rem) clamp(1rem, 2.6vw, 1.45rem) clamp(2.9rem, 6vw, 3.6rem);
  background: var(--slate);
  border-inline-start: 3px solid var(--pitch);
  font-size: var(--step0);
  line-height: 1.75;
  color: var(--archive);
}

.page-contact .rhythm > li::before {
  content: counter(rhythm, decimal-leading-zero);
  position: absolute;
  inset-inline-start: .95rem;
  inset-block-start: clamp(1rem, 2.6vw, 1.45rem);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--pitch);
}

/* ---------- 合作与授权 ---------- */

.page-contact .contact-coop {
  background: var(--paper-warm);
  border-block-start: 1px solid var(--ct-line);
}

.page-contact .coop-grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-contact .coop-title {
  margin: .55rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step2);
  line-height: 1.15;
  color: var(--ink);
}

.page-contact .coop-copy p {
  margin: 0 0 .9rem;
  max-width: 40ch;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--ct-muted);
}

.page-contact .coop-side {
  align-self: start;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  background: var(--pitch-deep);
  color: var(--paper);
  display: grid;
  gap: .7rem;
  justify-items: start;
}

.page-contact .coop-side__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .2em;
  color: var(--turf);
}

.page-contact .coop-side__sample {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step1);
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .coop-side .btn {
  margin-top: .3rem;
}

/* ---------- 收束 ---------- */

.page-contact .contact-tail {
  background: var(--paper);
}

.page-contact .tail-grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.4rem);
  align-items: start;
}

.page-contact .tail-copy p {
  margin: 0 0 1.2rem;
  max-width: 42ch;
  font-size: var(--step0);
  line-height: 1.78;
  color: var(--ct-muted);
}

.page-contact .tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-contact .tail-figure {
  margin: 0;
  border: 1px solid var(--ct-line);
  padding: .5rem;
  background: var(--paper-warm);
}

.page-contact .tail-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.7) contrast(1.05) brightness(.94);
}

.page-contact .tail-figure__caption {
  padding: .6rem .2rem .5rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--archive);
}

.page-contact .tail-back {
  margin: clamp(1.8rem, 4vw, 2.6rem) 0 0;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--ct-line);
  background: repeating-linear-gradient(90deg, var(--silver) 0 1px, transparent 1px 22px) top left / 100% 6px no-repeat;
}

.page-contact .tail-back a {
  display: inline-block;
  margin-top: .8rem;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .16em;
  color: var(--pitch);
  text-decoration: none;
  border-block-end: 2px solid transparent;
  padding-block-end: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .tail-back a:hover,
.page-contact .tail-back a:focus-visible {
  color: var(--ink);
  border-block-end-color: var(--signal);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .materials-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .86fr);
    align-items: start;
  }
}

@media (min-width: 760px) {
  .page-contact .type-row {
    grid-template-columns: minmax(9rem, 14rem) minmax(0, 1fr);
    align-items: start;
    gap: 1.4rem;
  }

  .page-contact .type-row__tag {
    flex-direction: column;
    align-items: flex-start;
    gap: .15rem;
  }

  .page-contact .reach-item {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1.5rem;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 1.8rem;
  }

  .page-contact .contact-hero__stamp {
    display: flex;
    padding-block-start: 1rem;
  }

  .page-contact .tail-grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: center;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tail-back a {
    transition: none;
  }
}
<<<END>>>