.page-contact {
  background: var(--ink);
  color: var(--body-c);
  overflow-x: clip;
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(16px, 2.6vw, 28px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
  outline: none;
}

.page-contact .crumbs__sep {
  color: var(--line);
}

.page-contact .crumbs [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(22px, 3.4vw, 40px) 0 clamp(40px, 6vw, 78px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -55% 28%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(198, 255, 61, 0.11), transparent 66%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

.page-contact .contact-hero__body {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 36ch;
}

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

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(5, 7, 13, 0.74));
  pointer-events: none;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
  filter: saturate(0.86) contrast(1.08);
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

/* ---------- 通用区块头 ---------- */

.page-contact .contact-channels,
.page-contact .contact-kinds,
.page-contact .contact-flow,
.page-contact .contact-coop,
.page-contact .contact-faq {
  padding: clamp(46px, 6.5vw, 92px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-channels {
  border-top: 0;
}

.page-contact .contact-faq {
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-contact .contact-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(26px, 3.6vw, 46px);
  max-width: 64ch;
}

.page-contact .contact-head__note {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--body-c);
}

/* ---------- 三条通道 ---------- */

.page-contact .chan-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .chan {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(26px, 3.4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .chan__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .chan__dot {
  display: block;
  width: 10px;
  height: 10px;
  flex: none;
  background: var(--paper);
}

.page-contact .chan--tel .chan__dot {
  background: var(--orange);
}

.page-contact .chan--addr .chan__dot {
  background: var(--muted);
}

.page-contact .chan__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .chan__value {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 20px);
  line-height: 1.4;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  overflow-wrap: anywhere;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.page-contact .chan__value:hover,
.page-contact .chan__value:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-contact .chan__value:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
}

.page-contact .chan__value--plain {
  border-bottom-color: transparent;
  cursor: default;
}

.page-contact .chan__value--plain:hover {
  color: var(--paper);
  border-bottom-color: transparent;
}

.page-contact .chan__desc {
  margin: 0;
  max-width: 34ch;
  font-size: 16px;
  line-height: 1.72;
  color: var(--body-c);
}

.page-contact .chan__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

@media (min-width: 880px) {
  .page-contact .chan-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .chan {
    border-bottom: 0;
    padding: clamp(26px, 3vw, 38px) clamp(20px, 2.4vw, 34px);
  }

  .page-contact .chan:first-child {
    padding-left: 0;
  }

  .page-contact .chan + .chan {
    border-left: 1px solid var(--line);
  }
}

/* ---------- 反馈分类四象限 ---------- */

.page-contact .kind-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .kind {
  display: flex;
  flex-direction: column;
  background: var(--ink);
  border-radius: 0;
}

.page-contact .kind__trigger {
  appearance: none;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-areas:
    "code name"
    "code hint";
  gap: 6px 14px;
  align-items: start;
  width: 100%;
  min-height: 44px;
  padding: clamp(20px, 2.8vw, 30px);
  background: transparent;
  border: 0;
  border-radius: 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background var(--dur-fast) ease;
}

.page-contact .kind__trigger:hover {
  background: var(--stand);
}

.page-contact .kind__trigger:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -2px;
}

.page-contact .kind__code {
  grid-area: code;
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--neon);
}

.page-contact .kind__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 23px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .kind__hint {
  grid-area: hint;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .kind__panel {
  padding: clamp(16px, 2.2vw, 22px) clamp(20px, 2.8vw, 30px) clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--line);
  background: var(--stand);
}

.page-contact .kind__panel p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body-c);
}

.page-contact .kind__need {
  margin: 0;
  padding-left: 12px;
  border-left: 1px solid var(--neon);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--paper);
}

@media (min-width: 780px) {
  .page-contact .kind-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 处理流程 ---------- */

.page-contact .contact-flow {
  background: linear-gradient(180deg, var(--ink) 0%, var(--stand) 48%, var(--ink) 100%);
}

.page-contact .contact-flow__inner {
  display: grid;
  gap: clamp(30px, 4.5vw, 60px);
}

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

.page-contact .contact-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
}

.page-contact .contact-flow__cap {
  display: block;
  padding: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .contact-flow__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .flow-steps {
  list-style: none;
  position: relative;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0 0 0 40px;
}

.page-contact .flow-steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--neon) 0%, rgba(198, 255, 61, 0.18) 55%, transparent 100%);
}

.page-contact .flow-step {
  position: relative;
  padding-bottom: clamp(20px, 2.6vw, 30px);
}

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

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--neon);
  transition: background var(--dur-fast) ease;
}

.page-contact .flow-step:hover::before {
  background: var(--neon);
}

.page-contact .flow-step:focus {
  outline: none;
}

.page-contact .flow-step:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 6px;
}

.page-contact .flow-step__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-contact .flow-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-contact .flow-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .flow-step__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-contact .flow-step__desc {
  margin: 8px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body-c);
}

.page-contact .flow-note {
  display: block;
  margin: 10px 0 0;
  max-width: 48ch;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-contact .contact-flow__inner {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .flow-note {
    display: none;
  }

  .page-contact .flow-step:hover .flow-note,
  .page-contact .flow-step:focus-within .flow-note {
    display: block;
  }
}

@media (max-width: 899px) {
  .page-contact .contact-flow__media {
    order: 2;
  }

  .page-contact .contact-flow__body {
    order: 1;
  }
}

/* ---------- 合作方向 ---------- */

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .coop {
  display: grid;
  gap: 10px;
  padding: clamp(22px, 3vw, 34px) 0;
  background: var(--ink);
}

.page-contact .coop__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-contact .coop__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .coop__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-c);
}

@media (min-width: 820px) {
  .page-contact .coop {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 46px);
    align-items: start;
    padding: clamp(24px, 3vw, 36px) clamp(18px, 2.4vw, 28px);
  }
}

/* ---------- 常见问题 ---------- */

.page-contact .faq-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .faq-intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-contact .faq-intro p {
  margin: 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-c);
}

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

.page-contact .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .faq-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  min-height: 44px;
  padding: 15px 2px;
  color: var(--body-c);
  text-decoration: none;
  transition: color var(--dur-fast) ease;
}

.page-contact .faq-link:hover {
  color: var(--paper);
}

.page-contact .faq-link:hover .faq-link__label {
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-color: var(--neon);
}

.page-contact .faq-link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-contact .faq-link__label {
  font-size: 16px;
  line-height: 1.6;
}

.page-contact .faq-link__arrow {
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--muted);
  transition: color var(--dur-fast) ease;
}

.page-contact .faq-link:hover .faq-link__arrow {
  color: var(--neon);
}

@media (min-width: 880px) {
  .page-contact .faq-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .kind__trigger,
  .page-contact .chan__value,
  .page-contact .crumbs a,
  .page-contact .faq-link,
  .page-contact .faq-link__arrow,
  .page-contact .flow-step::before {
    transition: none;
  }
}