.page-contact {
  --c-board-top: #122E22;
  --c-board-bottom: #050E09;
  --c-paper-ink: #17211A;
  --c-paper-muted: #4C5C50;
  --c-lime-soft: rgba(183, 255, 42, 0.18);
  background: var(--bg);
  color: var(--text);
  padding-bottom: clamp(40px, 8vw, 88px);
}

.page-contact section {
  padding-block: clamp(32px, 6vw, 72px);
}

.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 30px);
}

/* 面包屑 */
.page-contact .contact-crumb {
  padding-top: clamp(18px, 4vw, 32px);
}

.page-contact .contact-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--neon-lime);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  border-bottom-color: var(--neon-lime);
}

.page-contact .contact-crumb__sep {
  color: var(--grid-moss);
}

/* 首屏文案 */
.page-contact .hero-copy {
  max-width: 64ch;
}

.page-contact h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.12;
  letter-spacing: 0.015em;
  color: var(--text-strong);
}

.page-contact .hero-lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* 工作时段条 */
.page-contact .reply-lane {
  margin-top: clamp(24px, 4vw, 36px);
  padding: 14px 0 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .reply-lane__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime-tint);
}

.page-contact .reply-lane__track {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}

.page-contact .reply-lane__tick {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--score-white);
}

.page-contact .reply-lane__bar {
  position: relative;
  flex: 1 1 auto;
  min-width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-lime), var(--lime-tint));
}

.page-contact .reply-lane__bar::before,
.page-contact .reply-lane__bar::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-lime);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px var(--c-lime-soft);
}

.page-contact .reply-lane__bar::before {
  left: 0;
}

.page-contact .reply-lane__bar::after {
  left: 100%;
}

.page-contact .reply-lane__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 分栏：通道牌 + 准备清单 */
.page-contact .hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 3vw, 24px);
  align-items: start;
  margin-top: clamp(20px, 4vw, 34px);
}

.page-contact .channel-board {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  background: linear-gradient(155deg, var(--c-board-top) 0%, var(--c-board-bottom) 78%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon-lime);
  overflow: hidden;
}

.page-contact .channel-board::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 72px;
  height: 72px;
  background: repeating-linear-gradient(
    45deg,
    rgba(183, 255, 42, 0.26) 0 1px,
    transparent 1px 8px
  );
  pointer-events: none;
}

.page-contact .channel-board__code {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--neon-lime);
}

.page-contact .channel-board__title {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.25;
  color: var(--text-strong);
}

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

.page-contact .channel-item {
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .channel-item__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .channel-item__value {
  font-family: var(--font-display);
  font-size: clamp(15px, 2vw, 19px);
  line-height: 1.5;
  color: var(--score-white);
  overflow-wrap: anywhere;
}

.page-contact .channel-item__value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .channel-item__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel-item__hint a {
  color: var(--neon-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 255, 42, 0.4);
}

.page-contact .channel-item__hint a:hover,
.page-contact .channel-item__hint a:focus-visible {
  border-bottom-color: var(--neon-lime);
}

/* 暖纸清单 */
.page-contact .prep-sheet {
  padding: clamp(20px, 3vw, 32px);
  background: var(--warm-paper);
  color: var(--c-paper-ink);
  border: 1px solid var(--warm-paper);
}

.page-contact .prep-sheet__kicker {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-paper-muted);
}

.page-contact .prep-sheet__title {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  color: var(--c-paper-ink);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(23, 33, 26, 0.16);
}

.page-contact .prep-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .prep-item__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #6E7F72;
  padding-top: 2px;
}

.page-contact .prep-item__body h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 800;
  color: var(--c-paper-ink);
}

.page-contact .prep-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-paper-muted);
}

.page-contact .prep-sheet__foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(23, 33, 26, 0.16);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-paper-muted);
}

.page-contact .prep-sheet__foot a {
  color: #1F4A24;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 74, 36, 0.45);
}

.page-contact .prep-sheet__foot a:hover,
.page-contact .prep-sheet__foot a:focus-visible {
  border-bottom-color: #1F4A24;
}

/* 章节标题区 */
.page-contact .section-head {
  max-width: 62ch;
}

.page-contact .section-title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--text-strong);
}

.page-contact .lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* 适合咨询的情况 */
.page-contact .issue-section {
  background: linear-gradient(180deg, rgba(16, 41, 31, 0.62), rgba(6, 16, 11, 0) 72%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .issue-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-contact .fold {
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.16s ease;
}

.page-contact .fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  list-style: none;
  cursor: pointer;
}

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

.page-contact .fold__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--neon-lime);
}

.page-contact .fold[open] {
  border-color: rgba(183, 255, 42, 0.45);
}

.page-contact .fold[open] .fold__summary::after {
  content: "−";
}

.page-contact .fold__body {
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .fold__body p {
  margin: 0 0 10px;
}

.page-contact .fold__body p:last-child {
  margin-bottom: 0;
}

.page-contact .issue-need {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lime-tint);
}

/* 提交信息建议 */
.page-contact .submit-split,
.page-contact .address-grid,
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-contact .submit-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .submit-list li {
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .submit-list li .mono {
  display: block;
  margin-bottom: 3px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--neon-lime);
}

.page-contact .submit-note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--grid-moss);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

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

.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--surface-2);
}

.page-contact .media-frame__caption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
}

/* 回复节奏 */
.page-contact .reply-section {
  background: var(--surface-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .reply-fold {
  max-width: 820px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-contact .reply-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .reply-points li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .reply-points .mono {
  display: block;
  margin-bottom: 3px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--neon-lime);
}

/* 合作与内容 */
.page-contact .partner-section {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .partner-copy p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .partner-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .partner-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.page-contact .partner-tags .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 7px 12px;
  border: 1px solid var(--line);
}

/* 通信地址 */
.page-contact .address-copy p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .address-copy .address-line {
  margin: 0 0 14px;
  font-size: clamp(17px, 2.4vw, 22px);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--score-white);
  overflow-wrap: anywhere;
}

.page-contact .address-copy .address-note {
  margin-bottom: 0;
  padding-left: 12px;
  border-left: 2px solid var(--neon-lime);
  font-size: 13px;
  line-height: 1.75;
}

/* 接着看 */
.page-contact .more-grid {
  list-style: none;
  margin: clamp(16px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .more-card {
  display: flex;
}

.page-contact .more-card a {
  display: grid;
  gap: 6px;
  width: 100%;
  padding: 18px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.page-contact .more-card a:hover,
.page-contact .more-card a:focus-visible {
  border-color: var(--neon-lime);
  transform: translateY(-2px);
}

.page-contact .more-card__code {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--neon-lime);
}

.page-contact .more-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.35;
  color: var(--text-strong);
}

.page-contact .more-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

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

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

@media (min-width: 880px) {
  .page-contact .submit-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }

  .page-contact .address-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 920px) {
  .page-contact .hero-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .fold,
  .page-contact .more-card a {
    transition: none;
  }

  .page-contact .more-card a:hover,
  .page-contact .more-card a:focus-visible {
    transform: none;
  }
}
<<<END>>>