.page-contact {
  --pc-cut: 20px;
}

.page-contact .crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 26px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-contact .crumb a:hover {
  color: var(--fox);
  border-bottom-color: var(--fox);
}

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

.page-contact .crumb__now {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding: 32px 0 0;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  max-width: 620px;
  font-size: clamp(28px, 7.4vw, 50px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 22px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .hero-meta span {
  position: relative;
  padding-left: 14px;
}

.page-contact .hero-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--fox);
  transform: rotate(45deg);
}

.page-contact .hero-figure {
  margin: 36px 0 0;
  overflow: hidden;
}

.page-contact .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */

.page-contact .shell {
  display: grid;
  gap: 36px;
  padding: 44px 0 84px;
}

.page-contact .col-main {
  min-width: 0;
}

.page-contact .sec {
  margin-top: 36px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.page-contact .sec:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

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

.page-contact .sec__num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--fox);
}

.page-contact .sec h2 {
  margin: 0;
  font-size: clamp(21px, 4.8vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

.page-contact .sec__lede {
  margin: 12px 0 24px;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 01 渠道卡 ---------- */

.page-contact .channels {
  display: grid;
  gap: 14px;
}

.page-contact .chan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px 22px;
  background:
    linear-gradient(180deg, rgba(255, 74, 28, 0.07), transparent 48%),
    var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - var(--pc-cut)) 0,
    100% var(--pc-cut),
    100% 100%,
    var(--pc-cut) 100%,
    0 calc(100% - var(--pc-cut))
  );
}

.page-contact .chan::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--fox), var(--ember));
}

.page-contact .chan__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .chan__k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .chan__n {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  color: var(--line);
}

@supports (-webkit-text-stroke: 1px red) {
  .page-contact .chan__n {
    color: transparent;
    -webkit-text-stroke: 1px var(--line);
  }
}

.page-contact .chan__val {
  margin: 0;
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.55;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .chan__val--addr {
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .chan__for {
  list-style: none;
  margin: 4px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 9px;
}

.page-contact .chan__for li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .chan__for li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 1px;
  background: var(--fox);
}

/* ---------- 02 服务时段 ---------- */

.page-contact .hours {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - 14px) 0,
    100% 14px,
    100% 100%,
    14px 100%,
    0 calc(100% - 14px)
  );
}

.page-contact .hours__edge {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
  flex: 0 0 auto;
}

.page-contact .hours__track {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  height: 12px;
  background: var(--line);
  overflow: hidden;
}

.page-contact .hours__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--fox), var(--ember));
  transform-origin: left center;
  animation: pc-hours-fill 900ms cubic-bezier(0.22, 0.7, 0.3, 1) both;
}

.page-contact .hours__track::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0 19px,
    rgba(13, 17, 22, 0.55) 19px 20px
  );
  pointer-events: none;
}

@keyframes pc-hours-fill {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

.page-contact .order {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .order li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 6px 12px;
  padding: 13px 14px;
  background: var(--panel);
  border-left: 2px solid var(--line);
}

.page-contact .order li.is-first {
  border-left-color: var(--fox);
}

.page-contact .order__n {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .order__t {
  min-width: 0;
  font-size: 15px;
  color: var(--paper);
}

.page-contact .order__d {
  grid-column: 2;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--round);
}

/* ---------- 03 写信提示 ---------- */

.page-contact .tips {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-contact .tips li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .tips li:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .tips li > div {
  min-width: 0;
}

.page-contact .tips__n {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fox);
  padding-top: 3px;
}

.page-contact .tips__t {
  margin: 0 0 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .tips__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 04 地区与备案 ---------- */

.page-contact .region {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-contact .region__text p {
  margin: 0 0 16px;
  max-width: 560px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .region__reg {
  display: inline-block;
  margin: 4px 0 16px;
  padding: 9px 14px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
}

.page-contact .region__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-contact .region__link:hover {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

.page-contact .region__fig {
  margin: 0;
  overflow: hidden;
}

.page-contact .region__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 05 投稿与合作 ---------- */

.page-contact .collab {
  display: grid;
  gap: 10px;
}

.page-contact .collab details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-color 160ms ease;
}

.page-contact .collab details[open] {
  border-left-color: var(--cyan);
}

.page-contact .collab summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.5;
}

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

.page-contact .collab summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--fox);
}

.page-contact .collab details[open] summary::after {
  content: "–";
  color: var(--cyan);
}

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

.page-contact .col-body {
  padding: 0 18px 18px;
}

.page-contact .col-list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 9px;
}

.page-contact .col-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .col-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

/* ---------- 06 侧栏 ---------- */

.page-contact .aside-stack {
  display: grid;
  gap: 16px;
}

.page-contact .aside-card {
  padding: 22px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px)
  );
}

.page-contact .aside-card--plain {
  background: transparent;
  border-left: 2px solid var(--fox);
}

.page-contact .aside-card h2 {
  margin: 12px 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .aside-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .aside-card .btn {
  width: 100%;
  justify-content: center;
}

.page-contact .aside-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .aside-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  background: rgba(31, 224, 200, 0.05);
  border-left: 2px solid var(--teal);
  transition: background 160ms ease, border-color 160ms ease;
}

.page-contact .aside-list a:hover {
  background: rgba(31, 224, 200, 0.12);
  border-left-color: var(--cyan);
}

.page-contact .aside-list .mono {
  color: var(--cyan);
  font-size: 12px;
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-contact .order li {
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 12px;
  }

  .page-contact .order__d {
    grid-column: auto;
  }
}

@media (min-width: 720px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .region {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 36px;
  }
}

@media (min-width: 980px) {
  .page-contact .shell {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 56px;
    align-items: start;
  }

  .page-contact .aside-stack {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }

  .page-contact .hero-meta {
    font-size: 12.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hours__fill {
    animation: none;
  }

  .page-contact .ascii,
  .page-contact .chan,
  .page-contact .aside-card {
    transition: none;
  }
}