.page-contact {
  --ct-cut: 16px;
  color: var(--ink);
  background: var(--deep);
}

.page-contact h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.1;
  letter-spacing: .01em;
  margin: 0;
}

.page-contact .section-head h2 {
  margin-top: 6px;
}

.page-contact .contact-sub {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-dim);
  margin: 12px 0 0;
  max-width: 64ch;
}

.page-contact p a,
.page-contact li a {
  color: var(--orange-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--t-fast);
}

.page-contact p a:hover,
.page-contact li a:hover,
.page-contact p a:focus-visible,
.page-contact li a:focus-visible {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 10px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-contact .contact-hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(34px, 8vw, 56px);
  line-height: 1.04;
  letter-spacing: .01em;
  margin: 12px 0 0;
}

.page-contact .contact-hero .lede {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--ink-dim);
  max-width: 52ch;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .contact-hero__meta {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--line);
}

.page-contact .contact-hero__meta div {
  display: grid;
  gap: 5px;
}

.page-contact .contact-hero__meta dt {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--ink-soft);
}

.page-contact .contact-hero__meta dd {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .contact-hero__media {
  margin: 0;
  position: relative;
  overflow: hidden;
  background: linear-gradient(155deg, var(--console), var(--deep));
  aspect-ratio: 3 / 2;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.88) contrast(1.05);
}

@media (min-width: 560px) {
  .page-contact .contact-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: 28px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: 48px;
  }
}

/* ---------- 工作台：渠道 + 反馈清单 ---------- */
.page-contact .contact-desk {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-contact .contact-desk__rail {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .contact-channel {
  background: var(--console);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-cut)), calc(100% - var(--ct-cut)) 100%, 0 100%);
  transition: background var(--t-fast);
}

.page-contact .contact-channel[open] {
  background: linear-gradient(180deg, rgba(255, 122, 26, .09), rgba(22, 41, 58, 1) 62%);
}

.page-contact .contact-channel > summary {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 5px 10px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-channel > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .contact-channel__dot {
  grid-row: 1 / span 3;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 122, 26, .14);
}

.page-contact .contact-channel__label {
  font-family: var(--display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: .02em;
}

.page-contact .contact-channel__value {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-channel__meta {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--ink-soft);
}

.page-contact .contact-channel__body {
  border-top: 1px dashed var(--line);
  padding: 0 18px 18px;
}

.page-contact .contact-channel__body p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-dim);
}

.page-contact .contact-channel__body ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

.page-contact .contact-channel__body li {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .contact-channel__body li + li {
  margin-top: 5px;
}

.page-contact .contact-form {
  background: linear-gradient(180deg, var(--console), rgba(11, 30, 45, .94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 18px 20px;
}

.page-contact .contact-form__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: .01em;
  margin: 0;
}

.page-contact .contact-form__note {
  margin: 8px 0 20px;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--ink-soft);
}

.page-contact .field {
  margin-bottom: 16px;
}

.page-contact .field__label {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-soft);
  margin-bottom: 7px;
}

.page-contact .field__control {
  position: relative;
}

.page-contact .field__control::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .26s ease;
  pointer-events: none;
}

.page-contact .field__control:focus-within::after {
  transform: scaleX(1);
}

.page-contact .field__input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(11, 30, 45, .68);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--line-strong);
  border-radius: 10px 10px 0 0;
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.5;
  padding: 11px 12px;
  transition: background var(--t-fast), border-color var(--t-fast);
}

.page-contact .field__input::placeholder {
  color: var(--ink-soft);
}

.page-contact .field__input:focus {
  outline: none;
  border-color: var(--line-strong);
  background: rgba(11, 30, 45, .92);
}

.page-contact textarea.field__input {
  min-height: 112px;
  resize: vertical;
  line-height: 1.6;
}

.page-contact select.field__input {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.page-contact .field__control--select::before {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.page-contact .contact-form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.page-contact .contact-form__hint {
  margin: 0;
  flex: 1 1 220px;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--ink-soft);
}

@media (min-width: 980px) {
  .page-contact .contact-desk {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 28px;
    align-items: start;
  }
}

/* ---------- 纠错流程 ---------- */
.page-contact .contact-wrap {
  position: relative;
  overflow: hidden;
  background: var(--deep);
}

.page-contact .contact-wrap__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: saturate(.62) contrast(1.05);
}

.page-contact .contact-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 30, 45, .94), rgba(11, 30, 45, .86));
}

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

.page-contact .contact-flow__rail {
  display: none;
}

.page-contact .contact-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-flow__step {
  background: rgba(22, 41, 58, .74);
  border: 1px solid var(--line);
  border-top: 2px solid var(--clay);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 18px 16px 20px;
}

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

.page-contact .contact-flow__step h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: .01em;
  margin: 8px 0 0;
}

.page-contact .contact-flow__step p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--ink-dim);
}

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

@media (min-width: 860px) {
  .page-contact .contact-flow__rail {
    display: block;
    width: 100%;
    height: 12px;
    margin: 30px 0 -8px;
    color: var(--clay);
  }

  .page-contact .contact-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
  }
}

/* ---------- 订阅沟通 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: 24px;
}

.page-contact .contact-split__intro p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-dim);
  max-width: 46ch;
}

.page-contact .contact-tasks {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-tasks__item {
  position: relative;
  padding: 18px 0 18px 22px;
  border-left: 2px solid rgba(255, 122, 26, .35);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-tasks__item:first-child {
  padding-top: 4px;
}

.page-contact .contact-tasks__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.page-contact .contact-tasks__item:first-child::before {
  top: 10px;
}

.page-contact .contact-tasks__item h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .01em;
  margin: 0;
}

.page-contact .contact-tasks__item p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-dim);
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 40px;
    align-items: start;
  }
}

/* ---------- 内容合作 ---------- */
.page-contact .contact-collab__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .contact-collab__note {
  margin-top: 22px;
  padding: 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(59, 224, 192, .06);
}

.page-contact .contact-collab__note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-dim);
}

/* ---------- 谁来回复 ---------- */
.page-contact .contact-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.page-contact .contact-stats .stat {
  background: var(--console);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 14px;
}

.page-contact .contact-stats .stat-value {
  display: block;
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1;
  letter-spacing: -.01em;
}

.page-contact .contact-unit {
  font-size: 13px;
  margin-left: 4px;
  letter-spacing: .04em;
}

.page-contact .contact-stats .stat-label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-soft);
}

.page-contact .contact-sla {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}

.page-contact .contact-sla p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink-dim);
}

.page-contact .contact-sla strong {
  color: var(--orange-soft);
  font-weight: 600;
}

@media (min-width: 760px) {
  .page-contact .contact-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .contact-sla {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 站点信息 ---------- */
.page-contact .contact-identity__grid {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-contact .contact-identity__card {
  padding: 22px 20px;
}

.page-contact .contact-identity__card h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .01em;
  margin: 0 0 12px;
}

.page-contact .contact-identity__card p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink-dim);
}

.page-contact .contact-identity__card p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-identity__card .contact-identity__icp {
  color: var(--clay);
  font-size: 13px;
  letter-spacing: .06em;
  word-break: break-all;
}

@media (min-width: 860px) {
  .page-contact .contact-identity__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .field__control::after {
    transition: none;
  }
}