.page-contact {
  --cc-gap: clamp(14px, 2.2vw, 22px);
  --cc-pad: clamp(16px, 2.4vw, 26px);
  padding-bottom: clamp(32px, 6vw, 72px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .hero-frame {
  position: relative;
  margin-top: 16px;
  padding: calc(var(--cc-pad) + 6px);
  background: var(--grad-key);
  background-color: var(--ink-2);
}

.page-contact .hero-frame__grid {
  display: grid;
  gap: var(--cc-gap);
}

.page-contact .hero-frame__main h1 {
  margin: 8px 0 14px;
}

.page-contact .hero-tags {
  margin-top: 16px;
  gap: 8px;
}

.page-contact .hero-snips {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0 0 0 16px;
  border-left: 2px solid var(--cyan);
}

.page-contact .hero-snip dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .hero-snip dd {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ivory);
  word-break: break-word;
}

.page-contact .hero-snip__addr {
  font-size: 14px;
  letter-spacing: -0.01em;
}

/* ---------- 章节头 ---------- */
.page-contact .sec-head {
  max-width: 760px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .sec-head h2 {
  margin: 6px 0 12px;
}

/* ---------- 渠道卡 ---------- */
.page-contact .chan-wrap {
  display: grid;
  gap: var(--cc-gap);
}

.page-contact .chan-grid {
  display: grid;
  gap: var(--cc-gap);
  grid-template-columns: 1fr;
  align-content: start;
}

.page-contact .chan {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--cc-pad);
}

.page-contact .chan__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.page-contact .chan__no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--score);
}

.page-contact .chan__val {
  margin: 0;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .chan__val--addr {
  font-size: 14px;
  line-height: 1.7;
  word-break: break-word;
}

.page-contact .chan__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .chan__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .chan__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 7px;
  height: 1px;
  background: var(--line);
}

.page-contact .chan .btn {
  margin-top: auto;
}

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

/* ---------- 服务时段 ---------- */
.page-contact .hours {
  position: relative;
  padding: 86px var(--cc-pad) calc(var(--cc-pad) * 0.8);
  border: 1px solid var(--line);
  background: var(--grad-key);
  background-color: var(--ink-2);
}

.page-contact .hours__track {
  position: relative;
  height: 16px;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-contact .hours__span {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-soft) 100%);
  opacity: 0.85;
}

.page-contact .hours__node {
  position: absolute;
  top: 50%;
  left: 82%;
  transform: translate(-50%, -50%);
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--score);
  background: var(--ink);
  color: var(--score);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  cursor: help;
  transition: background-color var(--t-fast), color var(--t-fast);
}

.page-contact .hours__node:hover,
.page-contact .hours__node:focus-visible {
  background: var(--score);
  color: var(--ink);
  outline: none;
}

.page-contact .hours__note {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 14px);
  width: min(300px, 74vw);
  margin: 0;
  padding: 10px 12px;
  background: var(--archive);
  border: 1px solid var(--score);
  color: var(--ivory);
  font-size: 13px;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 6px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
  z-index: 3;
}

.page-contact .hours__node:hover + .hours__note,
.page-contact .hours__node:focus-visible + .hours__note {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.page-contact .hours__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .tips {
  list-style: none;
  display: grid;
  gap: var(--cc-gap);
  margin: var(--cc-gap) 0 0;
  padding: 0;
}

.page-contact .tip {
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--cyan);
}

.page-contact .tip__t {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ivory);
}

.page-contact .tip p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0 0 var(--cc-gap);
  padding: 0;
  display: grid;
  gap: var(--cc-gap);
}

.page-contact .flow__step {
  position: relative;
  padding: 16px 16px 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .flow__n {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--score);
  margin-bottom: 8px;
}

.page-contact .flow__step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ivory);
}

.page-contact .flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 合作方向卡 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: var(--cc-gap);
  grid-template-columns: 1fr;
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--cc-pad);
}

.page-contact .coop-card .muted {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .coop-card__req {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  opacity: 0.7;
  transition: opacity var(--t-fast), color var(--t-fast);
}

.page-contact .coop-card:hover .coop-card__req,
.page-contact .coop-card:focus-within .coop-card__req {
  opacity: 1;
  color: var(--cyan);
}

/* ---------- 引用规则 ---------- */
.page-contact .media-rules {
  display: grid;
  gap: var(--cc-gap);
  grid-template-columns: 1fr;
}

.page-contact .rule-card {
  padding: var(--cc-pad);
  border: 1px solid var(--line);
  background: var(--archive);
}

.page-contact .rule-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--ivory);
}

.page-contact .rule-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .rule-card a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 来访与信件 ---------- */
.page-contact .visit {
  display: grid;
  gap: var(--cc-gap);
}

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

.page-contact .check-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 11px 13px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ivory);
  cursor: pointer;
  transition: border-color var(--t-fast), transform var(--t-fast), background-color var(--t-fast);
}

.page-contact .check-list li:hover,
.page-contact .check-list li:focus-visible {
  border-color: var(--cyan);
  background: var(--archive);
  transform: translateY(-2px);
  outline: none;
}

.page-contact .check-list__box {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border: 1px solid var(--line);
  transition: background-color var(--t-fast), border-color var(--t-fast);
}

.page-contact .check-list li:hover .check-list__box,
.page-contact .check-list li:focus-visible .check-list__box {
  background: var(--score);
  border-color: var(--score);
}

.page-contact .visit__body .muted {
  font-size: 14px;
  line-height: 1.75;
}

.page-contact .visit__body .muted a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 常见问题 ---------- */
.page-contact .faq__item {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .faq summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ivory);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast), background-color var(--t-fast);
}

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

.page-contact .faq summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-contact .faq__item[open] summary::after {
  content: "−";
}

.page-contact .faq summary:hover {
  color: var(--cyan-soft);
  background: var(--archive);
}

.page-contact .faq__item .faq__body {
  padding: 0 16px 16px;
}

.page-contact .faq__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .faq__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .helper {
  display: grid;
  gap: 14px;
  margin-top: var(--cc-gap);
  padding: var(--cc-pad);
  border: 1px solid var(--line);
  border-left: 3px solid var(--score);
  background: linear-gradient(120deg, rgba(255, 90, 43, 0.1), rgba(59, 232, 196, 0.06));
}

.page-contact .helper p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ivory);
}

.page-contact .helper .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 760px) {
  .page-contact .helper {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-contact .helper .btn {
    justify-self: end;
  }

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

  .page-contact .flow__step::before {
    content: "";
    position: absolute;
    left: 0;
    top: -1px;
    width: 36px;
    height: 2px;
    background: var(--score);
  }
}

@media (min-width: 880px) {
  .page-contact .visit {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: clamp(20px, 3vw, 38px);
  }

  .page-contact .hero-frame__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 1080px) {
  .page-contact .chan-wrap {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(18px, 2.4vw, 28px);
  }

  .page-contact .chan-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .tips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}