/* =========================================================
   page-contact · 咨询通道
   选择器全部限定在 .page-contact 作用域内
   ========================================================= */

.page-contact {
  --pc-card-bg: linear-gradient(180deg, rgba(42, 10, 18, .78) 0%, rgba(11, 7, 9, .92) 100%);
  --pc-card-bg-hover: linear-gradient(180deg, rgba(58, 14, 25, .92) 0%, rgba(11, 7, 9, .96) 100%);
  --pc-rail-line: 1px solid var(--line);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 var(--s5);
  background:
    linear-gradient(155deg, var(--ink) 0%, var(--ink-3) 46%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: .24;
  filter: saturate(.75) contrast(1.12);
}

.page-contact .pc-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(104deg, rgba(11, 7, 9, .97) 0%, rgba(11, 7, 9, .78) 48%, rgba(42, 10, 18, .58) 100%),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(47, 243, 224, .045) 3px 4px);
}

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

.page-contact .pc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s4);
  margin-top: var(--s4);
}

.page-contact .pc-hero__title {
  margin: var(--s2) 0 0;
  font-size: clamp(36px, 8.6vw, 84px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.012em;
  color: var(--bone);
  text-shadow: 0 0 1px var(--cyan), 0 0 28px rgba(47, 243, 224, .22);
}

.page-contact .pc-hero__desc {
  max-width: var(--w-prose);
  margin-top: var(--s3);
  color: var(--bone);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s4);
}

.page-contact .pc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s1) var(--s3);
  margin: var(--s4) 0 0;
  padding: var(--s3) 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .pc-hero__meta li {
  position: relative;
  padding-left: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .pc-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

/* 竖排超大邮箱 —— 移动端隐藏，桌面端作为视觉主体 */

.page-contact .pc-hero__rail {
  display: none;
}

.page-contact .pc-hero__rail-label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .26em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-contact .pc-hero__rail-mail {
  margin-block-start: var(--s3);
  font-family: var(--font-mono);
  font-size: clamp(18px, 1.7vw, 26px);
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--bone);
  text-shadow: 0 0 18px rgba(47, 243, 224, .38), 0 0 2px rgba(247, 242, 233, .6);
}

/* ---------- 通用小标题 ---------- */

.page-contact .pc-sub {
  max-width: var(--w-prose);
  margin-top: var(--s2);
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: var(--muted);
}

/* ---------- 三条通道 ---------- */

.page-contact .pc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
  margin-top: var(--s4);
}

.page-contact .pc-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  padding: var(--s4) var(--s3) var(--s3);
  border: 1px solid var(--line);
  background: var(--pc-card-bg);
  transition: border-color 120ms var(--ease), transform 120ms var(--ease), box-shadow 120ms var(--ease);
}

.page-contact .pc-channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 34px;
  background: var(--line);
  transition: background 120ms var(--ease), height 120ms var(--ease);
}

.page-contact .pc-channel--alt::after {
  background: var(--red);
}

.page-contact .pc-channel__num {
  position: absolute;
  right: var(--s3);
  top: calc(var(--s3) - 4px);
  font-family: var(--font-mono);
  font-size: var(--fs-48);
  line-height: 1;
  font-weight: 700;
  color: rgba(58, 34, 44, .65);
  pointer-events: none;
}

.page-contact .pc-channel__title {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--bone);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--gold);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-channel__body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: var(--muted);
}

.page-contact .pc-channel__meta {
  margin: 0;
  padding-top: var(--s2);
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .pc-channel .tj-btn {
  margin-top: auto;
}

@media (hover: hover) {
  .page-contact .pc-channel:hover {
    border-color: var(--cyan);
    background: var(--pc-card-bg-hover);
    transform: translateY(-4px);
    box-shadow: 0 0 0 1px rgba(47, 243, 224, .22), 0 14px 34px rgba(0, 0, 0, .5);
  }
  .page-contact .pc-channel:hover::after {
    background: var(--cyan);
    height: 62px;
  }
}

.page-contact .pc-channel:focus-within {
  border-color: var(--cyan);
}

/* ---------- 响应节奏 ---------- */

.page-contact .pc-response {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s5);
}

.page-contact .pc-response__lead .tj-btn {
  margin-top: var(--s4);
}

.page-contact .pc-response__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  align-content: start;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .pc-response__stats .tj-stat {
  background: rgba(11, 7, 9, .82);
  padding: var(--s3);
}

/* ---------- 分流图 ---------- */

.page-contact .pc-routing {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s4);
  align-items: center;
}

.page-contact .pc-routing__map {
  margin: 0;
}

.page-contact .pc-routing__title {
  margin: var(--s2) 0 var(--s3);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--bone);
}

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

.page-contact .pc-routing__list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--s3) 0 var(--s3) var(--s3);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-contact .pc-routing__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--s3) + 8px);
  width: 8px;
  height: 1px;
  background: var(--violet);
  transition: width 120ms var(--ease), background 120ms var(--ease);
}

@media (hover: hover) {
  .page-contact .pc-routing__list li:hover::before {
    width: 18px;
    background: var(--cyan);
  }
}

.page-contact .pc-routing__link {
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

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

.page-contact .pc-routing__list span {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 邮件标题模板 ---------- */

.page-contact .pc-templates {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
  margin-top: var(--s4);
}

.page-contact .pc-template {
  display: flex;
  flex-direction: column;
  gap: var(--s1);
  padding: var(--s3);
  border: 1px solid var(--line);
  background: var(--pc-card-bg);
  text-decoration: none;
  transition: border-color 120ms var(--ease), background 120ms var(--ease), transform 120ms var(--ease);
}

.page-contact .pc-template__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--violet);
}

.page-contact .pc-template__subject {
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gold);
  overflow-wrap: anywhere;
}

.page-contact .pc-template__hint {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

@media (hover: hover) {
  .page-contact .pc-template:hover {
    border-color: var(--cyan);
    background: var(--pc-card-bg-hover);
    transform: translateY(-3px);
  }
  .page-contact .pc-template:hover .pc-template__subject {
    color: var(--cyan);
  }
}

.page-contact .pc-template:focus-visible {
  border-color: var(--cyan);
}

/* ---------- 正文附件清单 ---------- */

.page-contact .pc-attach {
  margin-top: var(--s5);
  padding: var(--s4) var(--s3);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  background: rgba(42, 10, 18, .5);
}

.page-contact .pc-attach__title {
  margin: 0 0 var(--s3);
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--bone);
}

.page-contact .pc-attach__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s2);
}

.page-contact .pc-attach__list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: var(--s3);
  position: relative;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .pc-attach__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

.page-contact .pc-attach__k {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .04em;
  color: var(--bone);
}

/* ---------- 开服与下载入口 ---------- */

.page-contact .pc-openserver {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s4);
}

.page-contact .pc-openserver__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s4);
}

.page-contact .pc-openserver__panel {
  align-self: start;
}

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

.page-contact .pc-openserver__rows li {
  display: flex;
  align-items: flex-start;
  gap: var(--s2);
  padding: var(--s2) 0;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--bone);
}

.page-contact .pc-openserver__rows li:last-child {
  border-bottom: none;
}

.page-contact .pc-openserver__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: .58em;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(47, 243, 224, .7);
}

/* ---------- 纠错 ---------- */

.page-contact .pc-grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s3);
  margin-top: var(--s4);
}

.page-contact .pc-correction__col {
  padding: var(--s4) var(--s3);
  border: 1px solid var(--line);
  background: rgba(21, 10, 16, .7);
}

.page-contact .pc-correction__col--alt {
  background: rgba(42, 10, 18, .55);
  border-color: rgba(142, 15, 31, .55);
}

.page-contact .pc-correction__title {
  margin: 0 0 var(--s3);
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--bone);
}

.page-contact .pc-correction__note {
  margin: var(--s3) 0 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .pc-correction__col .pc-attach__list {
  margin: 0;
}

.page-contact .pc-correction__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s4);
}

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

.page-contact .pc-flow li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--s2) 0 var(--s2) var(--s3);
  position: relative;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .pc-flow li:last-child {
  border-bottom: none;
}

.page-contact .pc-flow li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--s2) + .6em);
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-contact .pc-flow__k {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .04em;
  color: var(--bone);
}

.page-contact .pc-correction__col .tj-btn {
  margin-top: var(--s3);
}

/* ---------- 服务地区 ---------- */

.page-contact .pc-region {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s5);
  align-items: center;
}

.page-contact .pc-region__facts {
  list-style: none;
  margin: var(--s4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--s3);
  border-top: 1px solid var(--line);
  padding-top: var(--s3);
}

.page-contact .pc-region__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .pc-region__num {
  font-family: var(--font-mono);
  font-size: var(--fs-48);
  line-height: 1;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-contact .pc-region__icp {
  margin: var(--s4) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--muted);
}

.page-contact .pc-region__map {
  position: relative;
  min-height: 220px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(42, 10, 18, .8) 0%, rgba(11, 7, 9, .95) 100%);
  overflow: hidden;
}

.page-contact .pc-region__dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(47, 243, 224, .55) 1.4px, transparent 1.5px);
  background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(118deg, #000 0%, rgba(0, 0, 0, .5) 58%, transparent 100%);
  mask-image: linear-gradient(118deg, #000 0%, rgba(0, 0, 0, .5) 58%, transparent 100%);
}

.page-contact .pc-region__lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, transparent 49.6%, rgba(224, 31, 51, .35) 49.6%, rgba(224, 31, 51, .35) 50.4%, transparent 50.4%),
    linear-gradient(0deg, transparent 49.6%, rgba(224, 31, 51, .35) 49.6%, rgba(224, 31, 51, .35) 50.4%, transparent 50.4%);
}

/* ---------- 平板及桌面 ---------- */

@media (min-width: 760px) {
  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-templates {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-attach__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    padding: calc(var(--header-h) + 64px) 0 var(--s6);
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s6);
    align-items: end;
  }

  .page-contact .pc-hero__rail {
    display: block;
    justify-self: end;
    align-self: stretch;
    min-height: 260px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    border-left: var(--pc-rail-line);
    padding-left: var(--s3);
  }

  .page-contact .pc-response {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s6);
    align-items: start;
  }

  .page-contact .pc-routing {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s5);
  }

  .page-contact .pc-openserver {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s6);
    align-items: start;
  }

  .page-contact .pc-region {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s6);
  }

  .page-contact .pc-region__map {
    min-height: 320px;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero__title {
    font-size: 84px;
  }

  .page-contact .pc-channel {
    padding: var(--s5) var(--s4) var(--s4);
  }

  .page-contact .pc-attach {
    padding: var(--s5) var(--s4);
  }
}

/* ---------- 无障碍与降级 ---------- */

.page-contact .pc-routing__link:focus-visible,
.page-contact .pc-template:focus-visible,
.page-contact .pc-channel .tj-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-template,
  .page-contact .pc-channel::after,
  .page-contact .pc-routing__list li::before {
    transition: none;
  }
  .page-contact .pc-channel:hover,
  .page-contact .pc-template:hover {
    transform: none;
  }
}