.page-contact {
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(11, 61, 46, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 61, 46, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--char);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-sans);
}

.page-contact p {
  margin: 0;
}

.page-contact .crumbs {
  padding-top: 18px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--moss);
}

.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .crumbs a {
  color: var(--moss);
  text-decoration: none;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--green-900);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: 32px 0 0;
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

.page-contact .hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--cyan);
}

.page-contact h1 {
  margin-top: 14px;
  font-size: clamp(32px, 7.2vw, 74px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--green-900);
}

.page-contact .hero-lead {
  max-width: 58ch;
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--char);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .hero-aside {
  background: var(--green-900);
  color: var(--paper);
  padding: 18px 20px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .hero-aside ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-aside li {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(244, 241, 233, 0.14);
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 241, 233, 0.72);
}

.page-contact .hero-aside li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .hero-aside li:first-child {
  padding-top: 0;
}

.page-contact .hero-aside .num {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-contact .contact-hero::after {
  content: "";
  display: block;
  height: 16px;
  margin-top: 38px;
  background-image: repeating-linear-gradient(115deg, var(--line) 0 1px, transparent 1px 11px);
  opacity: 0.6;
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .hero-aside {
    margin-top: 10px;
  }
}

/* ---------- 合作类型 ---------- */

.page-contact .coop-section {
  position: relative;
  margin-top: 6px;
  padding: 58px 0 58px;
  background: var(--green-900);
  color: var(--paper);
  clip-path: polygon(0 26px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .coop-section .section-head__title {
  color: var(--paper);
}

.page-contact .coop-section .section-head__lead {
  color: rgba(244, 241, 233, 0.72);
}

.page-contact .coop-media {
  margin: 26px 0 26px;
}

.page-contact .coop-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  border: 1px solid rgba(0, 229, 195, 0.28);
}

.page-contact .coop-media figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(244, 241, 233, 0.55);
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .coop-card {
  background: rgba(244, 241, 233, 0.045);
  border: 1px solid rgba(244, 241, 233, 0.16);
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%, 0 14px);
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-contact .coop-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(0, 229, 195, 0.07);
}

.page-contact .coop-card[open] {
  border-color: var(--cyan);
  background: rgba(0, 229, 195, 0.05);
}

.page-contact .coop-card__summary {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 20px 20px 18px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .coop-card__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .coop-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .coop-card__title {
  padding-right: 30px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .coop-card__scene {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(244, 241, 233, 0.72);
}

.page-contact .coop-card__cue {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(0, 229, 195, 0.5);
}

.page-contact .coop-card__cue::before,
.page-contact .coop-card__cue::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-contact .coop-card__cue::before {
  left: 4px;
  right: 4px;
  top: 8px;
  height: 1px;
}

.page-contact .coop-card__cue::after {
  top: 4px;
  bottom: 4px;
  left: 8px;
  width: 1px;
  transition: opacity 0.2s var(--ease);
}

.page-contact .coop-card[open] .coop-card__cue::after {
  opacity: 0;
}

.page-contact .coop-card__body {
  padding: 14px 20px 22px;
  border-top: 1px solid rgba(244, 241, 233, 0.12);
}

.page-contact .coop-card__body ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .coop-card__body li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(244, 241, 233, 0.7);
}

.page-contact .coop-card__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--amber);
}

.page-contact .coop-card__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 195, 0.45);
}

.page-contact .coop-card__body a:hover,
.page-contact .coop-card__body a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

@media (min-width: 720px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 流程 ---------- */

.page-contact .flow-section {
  padding: 56px 0;
}

.page-contact .flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-contact .flow-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  position: relative;
  margin-left: 5px;
  padding: 0 0 26px 26px;
  border-left: 1px solid var(--line);
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--paper);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: background-color 0.2s var(--ease);
}

.page-contact .flow-step:hover::before {
  background: var(--cyan);
}

.page-contact .flow-step__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
}

.page-contact .flow-step__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber-deep);
}

.page-contact .flow-step__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--green-900);
}

.page-contact .flow-step__time {
  margin-left: auto;
  padding-bottom: 1px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--moss);
  border-bottom: 1px dashed var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .flow-step:hover .flow-step__time {
  color: var(--green-900);
  border-bottom-color: var(--cyan);
}

.page-contact .flow-step__desc {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--char);
}

.page-contact .flow-media {
  margin: 0;
}

.page-contact .flow-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .flow-media figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--moss);
}

@media (min-width: 900px) {
  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .flow-media {
    margin-top: 12px;
  }
}

/* ---------- 纠错 ---------- */

.page-contact .fix-section {
  padding: 50px 0;
  background-color: var(--paper-200);
  background-image: repeating-linear-gradient(135deg, rgba(11, 61, 46, 0.05) 0 1px, transparent 1px 16px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .fix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .fix-list {
  display: grid;
  gap: 0;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .fix-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .fix-list li:first-child {
  border-top: 1px dashed var(--line);
}

.page-contact .fix-list__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green-600);
}

.page-contact .fix-list p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--char);
}

.page-contact .fix-note {
  margin-top: 22px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--moss);
  max-width: 62ch;
}

.page-contact .fix-card {
  align-self: start;
  padding: 24px 22px 26px;
  background: var(--green-900);
  color: var(--paper);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-contact .fix-card__num {
  display: block;
  font-size: clamp(26px, 5vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-contact .fix-card__text {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 241, 233, 0.76);
}

.page-contact .fix-card .btn {
  margin-top: 20px;
}

@media (min-width: 900px) {
  .page-contact .fix-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 46px;
    align-items: start;
  }

  .page-contact .fix-list li {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

/* ---------- 联系卡 ---------- */

.page-contact .contact-card-section {
  padding: 56px 0 0;
}

.page-contact .contact-card {
  padding: 26px 20px 8px;
  background: var(--paper);
  border: 1px solid var(--green-600);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  box-shadow: 0 22px 44px -34px rgba(7, 42, 32, 0.6);
}

.page-contact .contact-card__head h2 {
  margin-top: 6px;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  color: var(--green-900);
}

.page-contact .contact-card__head p {
  margin-top: 8px;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--moss);
}

.page-contact .contact-lines {
  margin: 20px 0 0;
}

.page-contact .contact-line {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-line dt {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber-deep);
}

.page-contact .contact-line dd {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  min-width: 0;
}

.page-contact .contact-line__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.4vw, 19px);
  font-weight: 700;
  letter-spacing: 0.005em;
  font-variant-numeric: tabular-nums;
  color: var(--green-900);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-line__value--text {
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
}

.page-contact .copy-btn {
  flex: none;
  padding: 4px 10px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--moss);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-contact .copy-btn:hover {
  color: var(--green-900);
  border-color: var(--cyan);
  background: rgba(0, 229, 195, 0.12);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .copy-note {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--green-600);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
}

.page-contact .copy-note[data-visible] {
  opacity: 1;
}

@media (min-width: 760px) {
  .page-contact .contact-card {
    padding: 34px 34px 14px;
  }

  .page-contact .contact-line {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
  }
}

/* ---------- 写信提示 ---------- */

.page-contact .tips-section {
  padding: 52px 0 0;
}

.page-contact .tips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .tip-item {
  padding-top: 12px;
  border-top: 2px solid var(--green-900);
}

.page-contact .tip-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--amber-deep);
}

.page-contact .tip-item h3 {
  margin: 6px 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--green-900);
}

.page-contact .tip-item p {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--moss);
}

.page-contact .mail-template {
  margin-top: 34px;
  padding: 20px;
  background: rgba(230, 225, 213, 0.55);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .mail-template__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--green-600);
}

.page-contact .mail-template__body {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--char);
  white-space: pre-wrap;
  word-break: break-word;
}

@media (min-width: 640px) {
  .page-contact .tips-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 1024px) {
  .page-contact .tips-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 收束带 ---------- */

.page-contact .closing-band {
  margin-top: 56px;
  padding: 40px 0;
  background-color: var(--green-900);
  background-image: repeating-linear-gradient(135deg, rgba(0, 229, 195, 0.09) 0 1px, transparent 1px 15px);
  color: var(--paper);
}

.page-contact .closing-band__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .closing-band__title {
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .closing-band__text {
  margin-top: 8px;
  max-width: 56ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 241, 233, 0.74);
}

.page-contact .closing-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 820px) {
  .page-contact .closing-band {
    padding: 46px 0;
  }

  .page-contact .closing-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-contact .closing-band__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .copy-btn,
  .page-contact .copy-note,
  .page-contact .flow-step::before,
  .page-contact .flow-step__time {
    transition: none;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}
<<<END>>>