.page-contact {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .contact-crumb {
  padding: clamp(20px, 3vw, 34px) 0 0;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(22px, 4vw, 54px) 0 clamp(24px, 4vw, 44px);
}

.page-contact .contact-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--grass);
}

.page-contact .contact-hero__title {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(32px, 6.4vw, 68px);
  font-weight: 200;
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.8;
  color: rgba(244, 247, 245, 0.8);
}

.page-contact .contact-banner {
  position: relative;
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(150px, 24vw, 260px);
  object-fit: cover;
  opacity: 0.85;
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--ink) 0%, rgba(11, 42, 33, 0.5) 42%, rgba(11, 42, 33, 0) 78%);
  pointer-events: none;
}

.page-contact .contact-banner__cap {
  position: absolute;
  right: 14px;
  bottom: 10px;
  z-index: 1;
  font-size: 12px;
  color: var(--note);
}

/* ---------- 章节骨架 ---------- */
.page-contact .contact-block {
  padding: clamp(36px, 5.5vw, 72px) 0;
}

.page-contact .contact-block--air {
  padding: clamp(46px, 7vw, 96px) 0;
}

.page-contact .contact-h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 250;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 245, 0.74);
}

/* ---------- 渠道 + 路径 双栏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.page-contact .channel-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--grass);
  border-radius: var(--sharp);
  background: var(--panel);
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-2);
  background: var(--mid);
}

.page-contact .channel__key {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--note);
}

.page-contact .channel__val {
  display: block;
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel__meta {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--note);
}

.page-contact .path-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .path-item {
  position: relative;
  padding: 20px 0 20px 52px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

.page-contact .path-item:hover {
  background: rgba(79, 191, 122, 0.05);
}

.page-contact .path-item__num {
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--grass);
}

.page-contact .path-item__title {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 500;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .path-item__desc {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 245, 0.74);
}

.page-contact .path-item__need {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--note);
}

.page-contact .path-item__need-key {
  margin-right: 8px;
  letter-spacing: 0.1em;
  color: var(--yellow);
}

/* ---------- 反馈步骤 ---------- */
.page-contact .feedback-steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-contact .feedback-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 8px 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-contact .feedback-step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .feedback-step__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.4;
  color: var(--orange);
}

.page-contact .feedback-step__title {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--paper);
}

.page-contact .feedback-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 245, 0.74);
}

.page-contact .feedback-tail {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--mid);
  font-size: 13px;
  line-height: 1.8;
  color: var(--note);
}

/* ---------- 响应数据带 ---------- */
.page-contact .resp-band {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .resp-band__item {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 18px;
  background: var(--panel);
}

.page-contact .resp-band__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--note);
}

.page-contact .resp-band__val {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .resp-band__note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 机构合作 ---------- */
.page-contact .coop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .coop-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-item {
  padding: 16px 0 16px 18px;
  border-left: 1px solid var(--line-2);
}

.page-contact .coop-item__title {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--grass);
}

.page-contact .coop-item p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 245, 0.74);
}

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

.page-contact .coop__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .coop__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--note);
}

/* ---------- 到访准备 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .prep-item {
  position: relative;
  padding: 12px 0 12px 32px;
  border-bottom: 1px solid var(--hair);
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(244, 247, 245, 0.86);
}

.page-contact .prep-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 16px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 底部数据带 ---------- */
.page-contact .contact-tape-section {
  padding: clamp(30px, 4vw, 50px) 0 clamp(44px, 6vw, 84px);
}

.page-contact .tape-rule {
  height: 20px;
  border-bottom: 1px solid var(--line);
  background-image: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 56px);
  background-repeat: repeat-x;
  background-position: bottom left;
}

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

.page-contact .contact-tape__cell {
  background: var(--ink-deep);
}

.page-contact .contact-tape__link {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 22px 20px;
  color: inherit;
  text-decoration: none;
  background: var(--ink-deep);
  transition: background-color 0.18s ease;
}

.page-contact .contact-tape__link::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 0;
  height: 2px;
  background: var(--grass);
  transform: scaleX(0.14);
  transform-origin: left;
  transition: transform 0.24s ease;
}

.page-contact .contact-tape__link:hover,
.page-contact .contact-tape__link:focus-visible {
  background: var(--panel);
}

.page-contact .contact-tape__link:hover::before,
.page-contact .contact-tape__link:focus-visible::before {
  transform: scaleX(1);
}

.page-contact .contact-tape__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--note);
}

.page-contact .contact-tape__name {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--paper);
}

.page-contact .contact-tape__hint {
  font-size: 12.5px;
  color: var(--orange);
}

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

  .page-contact .prep-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 32px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
  }

  .page-contact .coop {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 440px);
  }
}

@media (min-width: 1100px) {
  .page-contact .resp-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-tape {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
</main>