.page-contact {
  --contact-pad: 22px;
  --contact-tick: rgba(126, 138, 166, 0.16);
}

.page-contact .contact-heading {
  font-size: clamp(1.4rem, 4.4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--mist);
  margin: 10px 0 26px;
  max-width: 22ch;
}

.page-contact .contact-heading--ink {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero__title {
  font-size: clamp(1.9rem, 7.4vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.06;
  color: var(--mist);
  margin: 14px 0 30px;
  max-width: 18ch;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 38px;
}

.page-contact .contact-hero__text {
  font-size: clamp(1rem, 2.3vw, 1.12rem);
  line-height: 1.78;
  color: var(--mist);
  max-width: 34em;
  margin: 0;
}

.page-contact .contact-quick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .contact-quick a {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line-soft);
  color: var(--mist);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: border-color var(--dur), color var(--dur);
}

.page-contact .contact-quick a:hover,
.page-contact .contact-quick a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

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

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-hair);
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 64px;
    align-items: end;
  }
}

/* ---------- 客服渠道 ---------- */

.page-contact .contact-channels__grid {
  display: grid;
  gap: 34px;
}

@media (min-width: 1024px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: 5fr 7fr;
    gap: 64px;
    align-items: start;
  }

  .page-contact .contact-panel {
    position: sticky;
    top: calc(var(--rail-h) + 28px);
  }
}

.page-contact .contact-panel {
  background: var(--void);
  border: 1px solid var(--line-soft);
  padding: 4px var(--contact-pad) 4px;
}

.page-contact .contact-panel__row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-hair);
}

.page-contact .contact-panel__row:last-child {
  border-bottom: 0;
}

.page-contact .contact-panel__label {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--line);
}

.page-contact .contact-panel__value {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 4vw, 1.45rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--mist);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px dashed var(--line-soft);
  padding-bottom: 6px;
  align-self: flex-start;
  max-width: 100%;
}

.page-contact .contact-panel__value--tel {
  color: var(--lime);
  letter-spacing: 0.02em;
}

.page-contact .contact-panel__value--sm {
  font-size: clamp(1rem, 3.4vw, 1.2rem);
  color: var(--cyan);
}

.page-contact .contact-panel__value:hover,
.page-contact .contact-panel__value:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--cyan);
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .contact-panel__value--tel:hover,
.page-contact .contact-panel__value--tel:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .contact-panel__hint {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--line);
}

.page-contact .contact-subhead {
  font-size: clamp(1.1rem, 3.4vw, 1.35rem);
  font-weight: 700;
  color: var(--mist);
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.page-contact .contact-rhythm {
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-rhythm li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line-hair);
}

.page-contact .contact-rhythm li:last-child {
  border-bottom: 1px solid var(--line-hair);
}

.page-contact .contact-rhythm__key {
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--red);
}

.page-contact .contact-rhythm__body {
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--mist);
}

@media (min-width: 640px) {
  .page-contact .contact-rhythm li {
    grid-template-columns: 128px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

.page-contact .contact-window {
  border: 1px solid var(--line-soft);
  padding: 20px var(--contact-pad) 18px;
}

.page-contact .contact-window__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.page-contact .contact-window__cap {
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--line);
}

.page-contact .contact-window__len {
  font-size: 0.82rem;
  color: var(--cyan);
}

.page-contact .contact-window__track {
  position: relative;
  height: 8px;
  background: var(--void);
  border: 1px solid var(--line-hair);
  background-image: repeating-linear-gradient(90deg, var(--contact-tick) 0 1px, transparent 1px 25%);
  outline-offset: 4px;
}

.page-contact .contact-window__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  opacity: 0.9;
}

.page-contact .contact-window__hint {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  font-size: 0.76rem;
  color: var(--lime);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur), transform var(--dur);
  pointer-events: none;
  white-space: nowrap;
}

.page-contact .contact-window__track:hover .contact-window__hint,
.page-contact .contact-window__track:focus-visible .contact-window__hint {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .contact-window__ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--line);
}

/* ---------- 按问题找渠道 ---------- */

.page-contact .contact-topics__lead {
  margin-bottom: 30px;
}

.page-contact .contact-topics__stack .stack__item {
  border-top: 1px solid rgba(27, 22, 19, 0.18);
}

.page-contact .contact-topics__stack .stack__item:last-child {
  border-bottom: 1px solid rgba(27, 22, 19, 0.18);
}

.page-contact .contact-topics__stack .stack__head {
  background: transparent;
  color: var(--ink);
  padding: 18px 0;
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: 16px;
  border: 0;
  text-align: left;
  cursor: pointer;
}

.page-contact .contact-topics__stack .stack__head:focus-visible {
  outline: 2px solid var(--cyan-deep);
  outline-offset: 3px;
}

.page-contact .contact-topics__stack .stack__index {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--red);
}

.page-contact .contact-topics__stack .stack__title {
  flex: 1;
  font-size: clamp(1.02rem, 3.2vw, 1.22rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-contact .contact-topic__route {
  margin: 0 0 14px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .contact-topic__label {
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--red-deep);
}

.page-contact .contact-prep {
  margin: 0;
  padding-left: 1.1em;
  display: grid;
  gap: 6px;
}

.page-contact .contact-prep li {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 运营地址 ---------- */

.page-contact .contact-addr {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-addr__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
}

.page-contact .contact-addr__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-addr__text {
  font-style: normal;
  font-size: clamp(1.05rem, 3.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--lime);
  max-width: 24ch;
  padding-left: 18px;
  border-left: 3px solid var(--red);
  margin: 0 0 22px;
}

.page-contact .contact-addr__note {
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
  margin: 0 0 34px;
}

.page-contact .contact-addr__meta {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-addr__cell {
  padding: 18px 0;
  border-bottom: 1px solid var(--line-hair);
}

.page-contact .contact-addr__cell dt {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--line);
  margin-bottom: 8px;
}

.page-contact .contact-addr__cell dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--mist);
}

@media (min-width: 780px) {
  .page-contact .contact-addr__meta {
    grid-template-columns: repeat(3, 1fr);
    gap: 0 40px;
  }

  .page-contact .contact-addr__cell {
    border-bottom: 0;
    border-top: 1px solid var(--line-soft);
    margin-top: -1px;
  }
}

/* ---------- 对接流程 ---------- */

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

.page-contact .contact-step {
  position: relative;
  padding: 0 0 30px 34px;
  border-left: 1px solid var(--line-soft);
}

.page-contact .contact-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--red);
}

.page-contact .contact-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .contact-step__num {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--red);
  margin-bottom: 6px;
}

.page-contact .contact-step__title {
  font-size: clamp(1.05rem, 3.2vw, 1.25rem);
  font-weight: 700;
  color: var(--mist);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.page-contact .contact-step__body {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--mist);
  max-width: 46ch;
}

@media (min-width: 860px) {
  .page-contact .contact-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 56px;
  }

  .page-contact .contact-step {
    padding-bottom: 34px;
  }

  .page-contact .contact-step:nth-child(3) {
    padding-top: 34px;
  }
}

/* ---------- 备案与栏目入口 ---------- */

.page-contact .contact-info__grid {
  display: grid;
  gap: 44px;
}

@media (min-width: 900px) {
  .page-contact .contact-info__grid {
    grid-template-columns: 5fr 7fr;
    gap: 72px;
  }
}

.page-contact .contact-id {
  border: 1px solid rgba(27, 22, 19, 0.22);
  padding: 18px var(--contact-pad);
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.page-contact .contact-id__label {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--red-deep);
}

.page-contact .contact-id__value {
  font-size: clamp(1rem, 3.4vw, 1.3rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.page-contact .contact-info__note {
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-contact .contact-info__legal {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.page-contact .contact-info__legal a {
  font-size: 0.9rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

.page-contact .contact-info__legal a:hover,
.page-contact .contact-info__legal a:focus-visible {
  border-bottom-color: var(--cyan-deep);
  color: var(--cyan-deep);
  outline: 2px solid var(--cyan-deep);
  outline-offset: 3px;
}

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

.page-contact .contact-dir li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid rgba(27, 22, 19, 0.18);
}

.page-contact .contact-dir li:last-child {
  border-bottom: 1px solid rgba(27, 22, 19, 0.18);
}

.page-contact .contact-dir a {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.page-contact .contact-dir a:hover,
.page-contact .contact-dir a:focus-visible {
  color: var(--red-deep);
  outline: 2px solid var(--cyan-deep);
  outline-offset: 3px;
}

.page-contact .contact-dir span {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(27, 22, 19, 0.78);
}

@media (min-width: 640px) {
  .page-contact .contact-dir li {
    grid-template-columns: 168px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-window__hint,
  .page-contact .contact-quick a,
  .page-contact .contact-panel__value {
    transition: none;
  }
}