.page-contact {
  --contact-line: var(--line);
  --contact-panel: var(--panel);
  color: var(--paper);
  background: linear-gradient(180deg, var(--ink) 0%, var(--deep) 24%, var(--deep) 76%, var(--ink) 100%);
  padding-bottom: calc(var(--dock-h) + 40px);
}

.page-contact .contact-crumbs {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-lead {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-lead::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(46, 82, 69, 0.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 82, 69, 0.42) 1px, transparent 1px);
  background-size: 84px 84px;
  opacity: 0.38;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 86%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 86%);
}

.page-contact .contact-lead__inner {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 34px 0 40px;
}

.page-contact .contact-lead__inner::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -150px;
  width: 300px;
  height: 540px;
  pointer-events: none;
  background: linear-gradient(165deg, rgba(201, 162, 75, 0.16), rgba(201, 162, 75, 0) 68%);
  transform: rotate(20deg);
}

.page-contact .contact-lead__main,
.page-contact .lead-index {
  position: relative;
  z-index: 1;
}

.page-contact .contact-kicker {
  position: relative;
  margin: 0 0 16px;
  padding-left: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-contact .contact-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 9px;
  height: 1px;
  background: var(--cinnabar);
  transform: translateY(-50%);
}

.page-contact .contact-lead__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(27px, 7.2vw, 50px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-lead__text {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--jade);
}

.page-contact .lead-index {
  border-top: 1px solid var(--contact-line);
  padding-top: 16px;
}

.page-contact .lead-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--jade);
}

.page-contact .lead-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-contact .lead-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.6;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-contact .lead-index__list a:hover,
.page-contact .lead-index__list a:focus-visible {
  color: var(--gold-hi);
  padding-left: 6px;
  outline: none;
}

.page-contact .lead-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-block {
  padding: 54px 0 0;
}

.page-contact .block-head {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num lede";
  column-gap: 16px;
  row-gap: 8px;
  align-items: start;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .section-number {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: clamp(24px, 6.4vw, 34px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-contact .block-head > h2 {
  grid-area: title;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 4.8vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .block-head > p {
  grid-area: lede;
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 01 受理范围 ---------- */
.page-contact .scope-grid {
  display: grid;
  gap: 16px;
}

.page-contact .scope-col {
  padding: 22px 20px;
  border: 1px solid var(--contact-line);
  background: var(--contact-panel);
}

.page-contact .scope-col--out {
  background: rgba(6, 18, 14, 0.52);
}

.page-contact .scope-col h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--paper);
}

.page-contact .scope-col h3::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--mint);
}

.page-contact .scope-col--out h3::before {
  background: var(--cinnabar);
}

.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .scope-list li {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 1px solid var(--contact-line);
}

.page-contact .scope-list strong {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .scope-list span {
  font-size: 13px;
  line-height: 1.78;
  color: var(--jade);
}

.page-contact .scope-col--out .scope-list strong {
  color: var(--jade);
}

.page-contact .scope-col--out .scope-list span {
  color: rgba(168, 196, 182, 0.72);
}

/* ---------- 02 联系渠道（全页焦点） ---------- */
.page-contact .contact-channels {
  position: relative;
  margin-top: 58px;
  overflow: hidden;
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
  background: linear-gradient(155deg, var(--panel) 0%, var(--deep) 66%);
}

.page-contact .channels-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  pointer-events: none;
}

.page-contact .contact-channels::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(118deg, rgba(12, 31, 25, 0.95) 0%, rgba(12, 31, 25, 0.74) 48%, rgba(6, 18, 14, 0.92) 100%);
}

.page-contact .channels-inner {
  position: relative;
  z-index: 1;
  padding-top: 44px;
  padding-bottom: 44px;
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel-row {
  display: grid;
  gap: 8px;
  padding: 26px 0;
}

.page-contact .channel-row + .channel-row {
  border-top: 1px solid var(--contact-line);
}

.page-contact .channel-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.6vw, 29px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel-note {
  margin: 0;
  max-width: 52ch;
  font-size: 13px;
  line-height: 1.8;
  color: var(--jade);
}

.page-contact .channel-footnote {
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cinnabar);
  font-size: 13px;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 03 来信要点 ---------- */
.page-contact .spec-list {
  border-top: 1px solid var(--contact-line);
}

.page-contact .spec-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .spec-row__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--paper);
}

.page-contact .spec-row__body {
  margin: 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.82;
  color: var(--jade);
}

.page-contact .spec-row__body code {
  padding: 1px 6px;
  border: 1px solid rgba(201, 162, 75, 0.3);
  background: rgba(201, 162, 75, 0.1);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-hi);
}

.page-contact .spec-foot {
  margin: 24px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 04 流程与时效 ---------- */
.page-contact .flow-wrap {
  display: grid;
  gap: 26px;
}

.page-contact .flow-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .flow-step {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .flow-node {
  width: 10px;
  height: 10px;
  margin-top: 8px;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 75, 0.14);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

@media (hover: hover) {
  .page-contact .flow-step:hover .flow-node {
    box-shadow: 0 0 0 8px rgba(201, 162, 75, 0.22);
    transform: scale(1.12);
  }
}

.page-contact .flow-step__body {
  min-width: 0;
}

.page-contact .flow-step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .flow-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--jade);
}

.page-contact .flow-tip {
  margin-top: 10px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.8;
  color: var(--gold);
  transition: opacity 0.25s ease, max-height 0.25s ease;
}

@media (hover: hover) {
  .page-contact .flow-step:hover .flow-tip {
    max-height: 5em;
    opacity: 1;
  }
}

.page-contact .flow-figure {
  margin: 0;
  border: 1px solid var(--contact-line);
  background: var(--contact-panel);
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.86;
}

.page-contact .flow-figure figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--contact-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--jade);
}

.page-contact .flow-tail {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--contact-line);
  font-size: 13px;
  line-height: 1.82;
  color: var(--jade);
}

/* ---------- 继续查阅 ---------- */
.page-contact .contact-more {
  padding: 54px 0 0;
}

.page-contact .more-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 4.2vw, 24px);
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .more-grid {
  display: grid;
  gap: 12px;
}

.page-contact .more-link {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  border: 1px solid var(--contact-line);
  border-left: 2px solid transparent;
  background: var(--contact-panel);
  text-decoration: none;
  color: var(--paper);
  transition: background 0.22s ease, border-color 0.22s ease;
}

.page-contact .more-link:hover,
.page-contact .more-link:focus-visible {
  background: var(--lift);
  border-color: rgba(201, 162, 75, 0.5);
  border-left-color: var(--gold);
  outline: none;
}

.page-contact .more-link__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .more-link__title {
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .more-link__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--jade);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .spec-row {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-lead__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 56px;
    padding: 56px 0 62px;
  }

  .page-contact .contact-block {
    padding-top: 66px;
  }

  .page-contact .scope-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 1fr);
    gap: 0;
    border: 1px solid var(--contact-line);
  }

  .page-contact .scope-col {
    border: 0;
  }

  .page-contact .scope-col--out {
    border-left: 1px solid var(--contact-line);
  }

  .page-contact .channel-row {
    grid-template-columns: 140px minmax(0, 1fr) 300px;
    align-items: baseline;
    gap: 24px;
    padding: 30px 0;
  }

  .page-contact .channels-inner {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .page-contact .flow-wrap {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    align-items: start;
    gap: 44px;
  }
}

@media (min-width: 1080px) {
  .page-contact .more-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .lead-index__list a,
  .page-contact .flow-node,
  .page-contact .flow-tip,
  .page-contact .more-link {
    transition: none;
  }
}