.page-contact {
  --contact-paper: #ffffff;
  --contact-accent-line: rgba(250, 248, 243, 0.35);
  background: var(--cream);
  color: var(--black);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  background: var(--cool);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 32px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.6vw, 48px);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
}

.page-contact .contact-hero__eyebrow {
  display: inline-block;
  margin: 0 0 clamp(12px, 1.4vw, 18px);
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--green);
  border: 1px solid var(--green);
  background: rgba(31, 122, 76, 0.06);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(14px, 1.8vw, 22px);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .contact-hero__sub {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.78;
  color: var(--rock);
}

/* 联系卡片 */
.page-contact .contact-card {
  position: relative;
  padding: clamp(22px, 2.4vw, 34px);
  background: var(--ink);
  color: var(--on-ink);
  box-shadow: var(--shadow-2);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
}

.page-contact .contact-card__title {
  margin: 16px 0 22px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(19px, 1.8vw, 23px);
  letter-spacing: 0.01em;
  color: var(--on-ink-strong);
}

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

.page-contact .contact-card__row {
  padding: 14px 0;
}

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

.page-contact .contact-card__row:first-child {
  padding-top: 0;
}

.page-contact .contact-card__key {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--on-ink-strong);
}

.page-contact .contact-card__value--plain {
  color: var(--on-ink);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-contact .contact-card__pick {
  display: inline-block;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(14px, 1.35vw, 17px);
  letter-spacing: -0.01em;
  color: var(--on-ink-strong);
  border-bottom: 1px dashed var(--contact-accent-line);
  overflow-wrap: anywhere;
  cursor: text;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .contact-card__hint {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: rgba(250, 248, 243, 0.55);
}

/* 四步流程条 */
.page-contact .contact-hero__flow {
  margin-top: clamp(40px, 5vw, 72px);
}

.page-contact .contact-hero__flow-head {
  margin-bottom: clamp(20px, 2.4vw, 30px);
}

.page-contact .contact-hero__flow-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(21px, 2.2vw, 28px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .flow__step {
  position: relative;
  padding: clamp(20px, 2.2vw, 30px) clamp(18px, 1.8vw, 26px);
  background: var(--cream);
  transition: background-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-contact .flow__step::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--orange);
  transition: width 0.34s var(--ease);
}

.page-contact .flow__step:hover,
.page-contact .flow__step:focus-within {
  background: var(--contact-paper);
}

.page-contact .flow__step:hover::after,
.page-contact .flow__step:focus-within::after {
  width: 100%;
}

.page-contact .flow__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-contact .flow__name {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(16px, 1.5vw, 18px);
  letter-spacing: 0.06em;
  color: var(--ink);
}

.page-contact .flow__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 通用章节小标题 ---------- */
.page-contact .section__head h2 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(23px, 2.4vw, 32px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .section__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--rock);
}

/* ---------- 渠道分工 ---------- */
.page-contact .channel-grid {
  margin-top: clamp(32px, 3.6vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.4vw, 34px);
  background: var(--cream);
}

.page-contact .channel-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(18px, 1.8vw, 21px);
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .channel-card__value {
  margin: 0;
  color: var(--ink);
}

.page-contact .channel-card__value--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(14px, 1.4vw, 17px);
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--plain {
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--rock);
}

/* ---------- 数据合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 60px);
}

.page-contact .coop-lead h2 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(23px, 2.4vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .coop-lead p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .coop-link {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .coop-link:hover,
.page-contact .coop-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--green);
}

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

.page-contact .coop-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 20px;
  padding: clamp(20px, 2vw, 26px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-item__num {
  grid-row: span 2;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-contact .coop-item__title {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-contact .coop-item__desc {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--rock);
}

/* ---------- 内容纠错 ---------- */
.page-contact .fix-grid {
  margin-top: clamp(32px, 3.6vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.4vw, 48px);
}

.page-contact .fix-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .fix-field {
  padding: clamp(18px, 2vw, 26px);
  background: var(--contact-paper);
}

.page-contact .fix-field__key {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--green);
}

.page-contact .fix-field__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

.page-contact .fix-aside {
  padding: clamp(22px, 2.4vw, 32px);
  background: var(--ink);
  color: var(--on-ink);
  box-shadow: var(--shadow-1);
}

.page-contact .fix-aside h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  color: var(--on-ink-strong);
}

.page-contact .fix-aside p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--on-ink);
}

.page-contact .fix-aside .btn {
  margin-top: 8px;
}

/* ---------- 地址与位置 ---------- */
.page-contact .contact-map {
  margin: clamp(32px, 4vw, 56px) 0 0;
}

.page-contact .contact-map img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(0.97);
}

/* ---------- 底部条带 ---------- */
.page-contact .contact-strip {
  margin: 0;
  padding: 0;
  line-height: 0;
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-strip img {
  display: block;
  width: 100%;
  height: clamp(150px, 20vw, 300px);
  object-fit: cover;
  filter: saturate(0.5) brightness(0.94);
}

/* ---------- 运营与备案 ---------- */
.page-contact .ops__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.6vw, 56px);
}

.page-contact .ops__main h2 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(23px, 2.4vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .ops__main > p {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--rock);
}

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

.page-contact .ops__facts li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .ops__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--green);
}

.page-contact .ops__facts strong {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--ink);
}

.page-contact .ops__side {
  padding: clamp(20px, 2.2vw, 28px);
  background: var(--cool);
  border: 1px solid var(--line);
}

.page-contact .ops__side h3 {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-contact .ops__links {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ops__links a {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 15px;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .ops__links a:hover,
.page-contact .ops__links a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--green);
}

.page-contact .ops__icp {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .fix-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ops__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .fix-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    grid-template-areas: "card lead";
    align-items: start;
  }

  .page-contact .contact-card {
    grid-area: card;
  }

  .page-contact .contact-hero__lead {
    grid-area: lead;
  }
}

@media (max-width: 420px) {
  .page-contact .contact-card__pick {
    font-size: 13px;
  }

  .page-contact .coop-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .page-contact .coop-item__num {
    grid-row: auto;
    padding-top: 0;
  }

  .page-contact .coop-item__desc {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .flow__step,
  .page-contact .flow__step::after,
  .page-contact .coop-link,
  .page-contact .ops__links a {
    transition: none;
  }

  .page-contact [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}