.page-contact {
  --contact-shadow: 0 18px 42px rgba(0, 0, 0, .42);
  --contact-hair: rgba(27, 58, 46, .78);
  display: block;
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .crumbs {
  margin-top: clamp(14px, 2.2vw, 24px);
  margin-bottom: clamp(10px, 1.6vw, 16px);
}

.page-contact .contact-hero {
  padding-top: clamp(8px, 1.6vw, 18px);
  overflow: hidden;
}

.page-contact .contact-hero__head {
  max-width: 62ch;
}

.page-contact .eyebrow {
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-contact .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-contact .hero-art {
  position: relative;
  margin: clamp(22px, 3.4vw, 40px) auto 0;
}

.page-contact .hero-art img {
  display: block;
  width: 100%;
  height: clamp(120px, 17vw, 210px);
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(.7) brightness(.78);
}

.page-contact .hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, var(--contact-hair) 0 1px, transparent 1px 96px),
    linear-gradient(180deg, transparent 45%, var(--ink) 100%);
}

/* ---------- 横向联络通道带 ---------- */
.page-contact .channel-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .channel {
  position: relative;
  background: var(--panel);
  padding: clamp(20px, 2.6vw, 30px) clamp(18px, 2.4vw, 26px);
  transition: background .28s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .channel--doc::before {
  background: var(--amber);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: var(--panel-2);
}

.page-contact .channel__idx {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .channel__name {
  margin: 10px 0 8px;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--white);
}

.page-contact .channel__addr {
  margin: 0;
  font-size: clamp(13px, 1.5vw, 15px);
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .channel__scene {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
  opacity: .88;
}

@media (min-width: 860px) {
  .page-contact .channel-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (hover: hover) and (min-width: 1024px) {
  .page-contact .channel__scene {
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .34s var(--ease), opacity .26s var(--ease), margin-top .34s var(--ease);
  }

  .page-contact .channel:hover .channel__scene,
  .page-contact .channel:focus-within .channel__scene {
    max-height: 220px;
    margin-top: 12px;
    opacity: .92;
  }
}

/* ---------- 纠错区 ---------- */
.page-contact .fix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 46px);
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 940px) {
  .page-contact .fix-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
  }
}

.page-contact .step-list {
  list-style: none;
  counter-reset: fixstep;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-contact .step-list li {
  counter-increment: fixstep;
  position: relative;
  padding: 0 0 clamp(20px, 2.6vw, 30px) clamp(48px, 5vw, 62px);
}

.page-contact .step-list li:last-child {
  padding-bottom: 0;
}

.page-contact .step-list li::before {
  content: "0" counter(fixstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: clamp(38px, 4vw, 50px);
  text-align: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 20px;
  color: var(--cyan);
  background: var(--ink);
  border-right: 1px solid var(--line);
}

.page-contact .step-list h3 {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--white);
}

.page-contact .step-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .checklist-card {
  padding: clamp(20px, 2.8vw, 30px);
  box-shadow: var(--contact-shadow);
}

.page-contact .checklist-card__title {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
}

.page-contact .check-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.page-contact .check-list label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-soft);
  cursor: pointer;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
  transition: color .22s var(--ease);
}

.page-contact .check-list input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  position: relative;
  width: 17px;
  height: 17px;
  margin: 4px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  border-radius: var(--radius);
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-contact .check-list input:checked {
  border-color: var(--cyan);
  background: var(--cyan-dim);
}

.page-contact .check-list input:checked::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--cyan);
}

.page-contact .check-list input:checked + span {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--line);
}

.page-contact .link-line {
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

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

/* ---------- 合作接入切换 ---------- */
.page-contact .partner-switch {
  position: relative;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .partner-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .partner-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .partner-tabs label {
  flex: 1 1 160px;
  margin: 0;
  padding: 14px 16px;
  text-align: center;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--silver);
  background: var(--panel);
  cursor: pointer;
  transition: background .24s var(--ease), color .24s var(--ease);
}

.page-contact .partner-tabs label:hover {
  color: var(--white);
  background: var(--panel-2);
}

.page-contact #partner-media:checked ~ .partner-tabs label[for="partner-media"],
.page-contact #partner-league:checked ~ .partner-tabs label[for="partner-league"],
.page-contact #partner-academic:checked ~ .partner-tabs label[for="partner-academic"],
.page-contact #partner-product:checked ~ .partner-tabs label[for="partner-product"] {
  color: var(--cyan);
  background: var(--cyan-dim);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-contact .partner-panel {
  display: none;
  gap: clamp(18px, 2.6vw, 36px);
  grid-template-columns: 1fr;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-top: 0;
  background: var(--panel);
}

.page-contact #partner-media:checked ~ .partner-panels .partner-panel--media,
.page-contact #partner-league:checked ~ .partner-panels .partner-panel--league,
.page-contact #partner-academic:checked ~ .partner-panels .partner-panel--academic,
.page-contact #partner-product:checked ~ .partner-panels .partner-panel--product {
  display: grid;
}

@media (min-width: 940px) {
  .page-contact .partner-panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

.page-contact .partner-panel h3 {
  margin: 0 0 10px;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--white);
}

.page-contact .partner-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .need-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .need-list li {
  position: relative;
  padding: 9px 0 9px 20px;
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--silver);
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .need-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .result-box {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--ink-2);
}

.page-contact .result-box p:last-child {
  margin-top: 10px;
  color: var(--white);
}

/* ---------- 地址与服务时段 ---------- */
.page-contact .window-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: stretch;
}

@media (min-width: 940px) {
  .page-contact .window-grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

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

.page-contact .window-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  filter: saturate(.65) brightness(.8);
}

.page-contact .window-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, var(--contact-hair) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(90deg, var(--contact-hair) 0 1px, transparent 1px 72px);
  mix-blend-mode: screen;
}

.page-contact .window-panel {
  padding: clamp(20px, 2.8vw, 32px);
  box-shadow: var(--contact-shadow);
}

.page-contact .window-panel .section__title {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-contact .window-list {
  margin: 0;
  padding: 0;
}

.page-contact .window-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 560px) {
  .page-contact .window-item {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

.page-contact .window-item dt {
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .window-item dd {
  margin: 0;
  font-size: clamp(14.5px, 1.7vw, 16px);
  color: var(--white);
  word-break: break-word;
}

.page-contact .window-panel .note {
  margin-top: 16px;
}

.page-contact .window-panel .note:last-child {
  margin-top: 10px;
}

.page-contact .window-panel .note a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line);
}

/* ---------- 回复时长 ---------- */
.page-contact .table-scroll {
  margin-top: clamp(20px, 2.8vw, 30px);
  overflow-x: auto;
  border: 1px solid var(--line);
}

.page-contact .response-table {
  width: 100%;
  min-width: 620px;
  margin: 0;
}

.page-contact .response-table caption {
  caption-side: bottom;
  padding: 12px 14px;
  text-align: left;
  border-top: 1px solid var(--line);
}

.page-contact .response-table th[scope="row"] {
  font-weight: 500;
  color: var(--white);
  text-align: left;
}

.page-contact .table-foot {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 78ch;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel__scene,
  .page-contact .partner-tabs label,
  .page-contact .check-list label,
  .page-contact .check-list input {
    transition: none;
  }
}