/* ===== 反馈通道 /feedback/ ===== */

.page-contact {
  --pc-gap: 26px;
  background: var(--bg);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  padding: 26px 0 46px;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero .breadcrumbs {
  margin-bottom: 28px;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-hero__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 6.6vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 12px 0 0;
  max-width: 12em;
  color: var(--ink);
}

.page-contact .pc-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .pc-facts {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-contact .pc-facts__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  text-transform: uppercase;
}

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

.page-contact .pc-facts__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}

.page-contact .pc-facts__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  flex: 0 0 auto;
}

.page-contact .pc-facts__val {
  color: var(--ink);
  text-align: right;
}

.page-contact .pc-hero__media {
  grid-column: 1 / -1;
  position: relative;
  margin-top: 6px;
  border: 1px solid var(--line);
  background: var(--zone);
}

.page-contact .pc-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 500;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .pc-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(8, 24, 43, 0.72) 0%, rgba(8, 24, 43, 0) 55%),
    repeating-linear-gradient(0deg, rgba(47, 243, 208, 0.05) 0 1px, transparent 1px 36px);
}

/* ---------- 区块骨架 ---------- */

.page-contact .pc-block {
  padding: clamp(44px, 6vw, 78px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-block--zone {
  background: var(--zone);
}

.page-contact .pc-block--last {
  border-bottom: 0;
}

.page-contact .pc-block__lead {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 渠道卡片 ---------- */

.page-contact .ch-grid {
  margin-top: 30px;
  display: grid;
  gap: 20px;
}

.page-contact .ch-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 32px 22px 24px;
  background: var(--zone);
  border: 1px solid var(--line);
}

.page-contact .pc-block--zone .ch-card {
  background: rgba(8, 24, 43, 0.55);
}

.page-contact .ch-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.page-contact .ch-card--mail::before {
  background: var(--cyan);
}

.page-contact .ch-card--phone::before {
  background: var(--amber);
}

.page-contact .ch-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}

.page-contact .ch-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 27px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ch-card__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ch-card__value {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .ch-card__value--amber {
  color: var(--amber);
}

.page-contact .ch-card__copy {
  flex: 0 0 auto;
}

.page-contact .ch-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .ch-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .ch-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .ch-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .ch-card--phone .ch-card__list li::before {
  background: var(--amber);
}

.page-contact .ch-card__note {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

/* ---------- 提交前清单 ---------- */

.page-contact .prep-grid {
  margin-top: 28px;
  display: grid;
  gap: 28px;
}

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

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

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

.page-contact .prep-item__row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 2px;
  cursor: pointer;
}

.page-contact .prep-item__check {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 4px 0 0;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .prep-item__num {
  flex: 0 0 auto;
  min-width: 22px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  padding-top: 2px;
}

.page-contact .prep-item__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .prep-item__check:checked ~ .prep-item__num {
  color: var(--cyan);
}

.page-contact .prep-item__check:checked ~ .prep-item__text {
  color: var(--ink-2);
}

.page-contact .prep-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .prep-link {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.page-contact .prep-link:hover,
.page-contact .prep-link:focus-visible {
  border-color: var(--cyan);
  background: rgba(47, 243, 208, 0.06);
}

/* ---------- 分类指引 ---------- */

.page-contact .case-list {
  margin-top: 30px;
  display: grid;
  gap: 12px;
}

.page-contact .case-item {
  border: 1px solid var(--line);
  background: rgba(14, 43, 51, 0.5);
}

.page-contact .case-item[open] {
  background: var(--zone);
}

.page-contact .case-item__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

.page-contact .case-item__summary::-webkit-details-marker {
  display: none;
}

.page-contact .case-item__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .case-item[open] .case-item__summary::after {
  content: "–";
  color: var(--amber);
}

.page-contact .case-item__idx {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}

.page-contact .case-item__name {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .case-item__body {
  display: grid;
  gap: 12px;
  margin: 0 20px 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .case-item__body p {
  margin: 0;
}

.page-contact .case-item__tag {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--amber);
  padding-left: 12px;
  border-left: 2px solid var(--wine);
}

/* ---------- 地址区 ---------- */

.page-contact .addr-grid {
  margin-top: 30px;
  display: grid;
  gap: 28px;
}

.page-contact .addr-line {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--amber);
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .addr-meta {
  margin: 24px 0 0;
}

.page-contact .addr-meta__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .addr-meta__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}

.page-contact .addr-meta__val {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .addr-note {
  margin: 18px 0 0;
}

.page-contact .addr-media {
  position: relative;
  border: 1px solid var(--line);
  background: rgba(8, 24, 43, 0.6);
  overflow: hidden;
}

.page-contact .addr-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 800 / 600;
  object-fit: cover;
}

.page-contact .addr-media__label {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  background: rgba(8, 24, 43, 0.86);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

/* ---------- 相关入口 ---------- */

.page-contact .also {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .also__link {
  display: inline-flex;
  align-items: center;
  padding: 11px 16px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--ink-2);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.page-contact .also__link:hover,
.page-contact .also__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .ch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .ch-card {
    padding: 34px 26px 26px;
  }

  .page-contact .case-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: 44px;
  }

  .page-contact .addr-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-hero {
    padding: 30px 0 58px;
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 290px);
    column-gap: 56px;
    row-gap: 30px;
    align-items: start;
  }

  .page-contact .pc-hero__main {
    max-width: 100%;
  }

  .page-contact .pc-hero__media {
    margin-top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .prep-link,
  .page-contact .also__link {
    transition: none;
  }
}