.page-contact {
  --pc-pad: clamp(18px, 4vw, 52px);
  --pc-gap: clamp(20px, 3vw, 34px);
  --pc-radius: 24px;
  max-width: 100%;
  overflow-x: hidden;
  padding: clamp(94px, 13vw, 148px) var(--pc-pad) clamp(64px, 9vw, 110px);
  background: var(--ink);
  color: var(--text-body);
  font-family: var(--font-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.page-contact > * {
  max-width: var(--wrap);
  margin-inline: auto;
}

.page-contact a {
  color: var(--lime);
  text-decoration: none;
  transition: color 200ms linear;
}

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

.page-contact :focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 面包屑 ---------- */

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 0 0 clamp(30px, 5vw, 54px);
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--limestone);
}

.page-contact .breadcrumb li + li::before {
  content: "／";
  margin-right: 14px;
  color: var(--line-strong);
}

.page-contact .breadcrumb li[aria-current="page"] {
  color: var(--text-soft);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  display: grid;
  gap: clamp(32px, 5vw, 60px);
  margin-bottom: clamp(56px, 9vw, 118px);
}

.page-contact .hero-copy {
  max-width: 62ch;
}

.page-contact .eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--limestone);
}

.page-contact h1 {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 7.6vw, 92px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--flood);
}

.page-contact .lede {
  max-width: 38ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--text-soft);
}

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

.page-contact .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--pc-radius);
  object-fit: cover;
  background: var(--ink-2);
}

.page-contact .hero-figure {
  position: relative;
}

.page-contact .hero-figure img {
  aspect-ratio: 16 / 9;
  filter: saturate(0.82) brightness(0.86);
}

.page-contact .media-caption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--limestone);
}

/* ---------- 区块骨架 ---------- */

.page-contact .section {
  margin-bottom: clamp(56px, 9vw, 118px);
}

.page-contact .section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 44px);
  max-width: 68ch;
}

.page-contact .section-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-contact h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.12;
  color: var(--flood);
}

.page-contact h3 {
  margin: 0 0 8px;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 600;
  color: var(--flood);
}

.page-contact .section-note {
  margin: 0;
  font-size: 13.5px;
  color: var(--limestone);
  line-height: 1.7;
}

.page-contact .muted {
  color: var(--limestone);
}

.page-contact .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 三条通道 ---------- */

.page-contact .channel-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-row {
  display: grid;
  gap: 10px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--limestone);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(21px, 4.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-contact .channel-value-addr {
  font-size: clamp(16px, 2.4vw, 23px);
  line-height: 1.5;
  color: var(--flood);
}

.page-contact .channel-meta {
  display: grid;
  gap: 6px;
  font-size: 13.5px;
}

.page-contact .channel-meta p {
  margin: 0;
}

/* ---------- 用途边界 ---------- */

.page-contact .boundary {
  display: grid;
  gap: clamp(22px, 3.5vw, 44px);
}

.page-contact .boundary-lead h2 {
  margin-top: 8px;
}

.page-contact .boundary-body > p {
  margin: 0 0 22px;
  max-width: 62ch;
}

.page-contact .boundary-list {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-contact .boundary-list li {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-contact .tag {
  justify-self: start;
  padding: 3px 12px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-contact .tag-lime {
  background: rgba(184, 255, 60, 0.14);
  color: var(--lime);
}

.page-contact .tag-amber {
  background: rgba(255, 176, 32, 0.16);
  color: var(--amber);
}

.page-contact .boundary-tail {
  margin: 0;
  padding-left: 16px;
  border-left: 3px solid var(--amber);
  font-size: 13.5px;
  color: var(--text-soft);
  max-width: 60ch;
}

/* ---------- 四步流程 ---------- */

.page-contact .flow-wrap {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

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

.page-contact .flow-step {
  position: relative;
  padding: 0 0 26px 46px;
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  width: 0;
  border-left: 1px dashed var(--line-strong);
}

.page-contact .flow-step:last-child::before {
  display: none;
}

.page-contact .flow-node {
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  margin: 0;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  background: var(--amber);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .flow-step p {
  margin: 0 0 8px;
  font-size: 13.5px;
  max-width: 58ch;
}

.page-contact .flow-owner {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--limestone);
}

.page-contact .flow-figure img {
  aspect-ratio: 3 / 2;
  filter: saturate(0.7) brightness(0.82);
}

/* ---------- 填写整理区 ---------- */

.page-contact .draft-grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  padding: clamp(22px, 3.5vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--ink) 78%);
}

.page-contact .draft-field {
  display: grid;
  gap: 8px;
}

.page-contact .draft-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--limestone);
}

.page-contact .pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .pill {
  padding: 9px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-soft);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: color 200ms linear, border-color 200ms linear, background 200ms linear;
}

.page-contact .pill[aria-pressed="true"] {
  border-color: transparent;
  background: var(--lime);
  color: var(--ink);
}

.page-contact .pill:hover {
  border-color: var(--lime);
}

.page-contact .draft-input {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: rgba(11, 31, 26, 0.72);
  color: var(--flood);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  transition: border-color 200ms linear;
}

.page-contact .draft-input::placeholder {
  color: var(--limestone);
}

.page-contact .draft-input:focus {
  border-color: var(--lime);
  outline: none;
}

.page-contact .draft-textarea {
  resize: vertical;
  min-height: 118px;
}

.page-contact .draft-hint {
  margin: 0;
  font-size: 12px;
  color: var(--limestone);
}

.page-contact .draft-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-top: clamp(12px, 2vw, 20px);
  border-top: 1px dashed var(--line);
}

.page-contact .draft-result {
  flex: 1 1 100%;
  margin: 0;
  font-size: 13.5px;
  color: var(--text-soft);
}

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 200ms linear, background 200ms linear, border-color 200ms linear;
}

.page-contact .btn-primary {
  background: var(--lime);
  color: var(--ink);
}

.page-contact .btn-primary:hover,
.page-contact .btn-primary:focus-visible {
  background: var(--lime-deep);
  color: var(--ink);
}

.page-contact .btn-ghost {
  border-color: var(--line-strong);
  color: var(--text-soft);
  background: transparent;
}

.page-contact .btn-ghost:hover,
.page-contact .btn-ghost:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

/* ---------- 示例 ---------- */

.page-contact .example-grid {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-contact .example-card {
  padding: clamp(20px, 2.8vw, 28px);
  border-radius: var(--r-md);
  background: var(--ink-2);
}

.page-contact .example-kind {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .example-body {
  margin: 0 0 12px;
  font-size: 14.5px;
  color: var(--flood);
  line-height: 1.7;
}

.page-contact .example-note {
  margin: 0;
  font-size: 12.5px;
  color: var(--limestone);
}

/* ---------- 引用与备案 ---------- */

.page-contact .refs {
  margin-bottom: 0;
}

.page-contact .refs-inner {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-contact .refs-text {
  margin: 12px 0 16px;
  max-width: 62ch;
  font-size: 13.5px;
  color: var(--text-soft);
}

.page-contact .refs-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0;
  font-size: 13px;
}

.page-contact .refs-meta {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-contact .refs-icp {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--limestone);
}

.page-contact .refs-region {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--limestone);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .channel-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 12px clamp(20px, 3vw, 44px);
  }

  .page-contact .channel-key {
    grid-column: 1 / -1;
  }

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

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

  .page-contact .draft-field-wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-row {
    grid-template-columns: 88px minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-contact .channel-key {
    grid-column: 1;
  }

  .page-contact .channel-value {
    grid-column: 2;
  }

  .page-contact .channel-meta {
    grid-column: 3;
    border-left: 1px solid var(--line);
    padding-left: clamp(16px, 2vw, 28px);
  }

  .page-contact .boundary {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .flow-wrap {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .flow-step {
    padding-left: 58px;
  }

  .page-contact .flow-step::before {
    left: 15px;
  }

  .page-contact .flow-node {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .page-contact .refs-inner {
    grid-template-columns: minmax(0, 9fr) minmax(0, 3fr);
    align-items: end;
  }

  .page-contact .refs-meta {
    text-align: right;
    justify-items: end;
  }
}

@media (min-width: 1180px) {
  .page-contact .example-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>