/* ===========================================================
   联络频道 · /find-us/
   作用域：.page-contact
   =========================================================== */

.page-contact {
  --pc-panel: rgba(18, 41, 74, 0.74);
  --pc-panel-solid: #12294A;
  --pc-edge: rgba(139, 154, 179, 0.24);
  --pc-edge-soft: rgba(139, 154, 179, 0.14);
  --pc-edge-hot: rgba(47, 216, 208, 0.5);
  --pc-wash: rgba(255, 106, 43, 0.08);
  color: var(--mist);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-top: 22px;
  padding-bottom: 2px;
}

.page-contact .breadcrumb__sep {
  margin: 0 8px;
  color: var(--rock);
  opacity: 0.55;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 54px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 62%;
  height: 460px;
  background: radial-gradient(closest-side, rgba(255, 106, 43, 0.20), rgba(255, 106, 43, 0) 72%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -22%;
  width: 58%;
  height: 420px;
  background: radial-gradient(closest-side, rgba(47, 216, 208, 0.16), rgba(47, 216, 208, 0) 74%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.page-contact .contact-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--circuit);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 246, 255, 0.82);
}

.page-contact .contact-hero__beacon {
  width: min(210px, 55vw);
  justify-self: center;
  animation: pc-beacon 3s ease-in-out infinite;
}

.page-contact .contact-hero__beacon svg {
  display: block;
  width: 100%;
  height: auto;
}

@keyframes pc-beacon {
  0%, 100% { opacity: 0.66; }
  50%      { opacity: 1; }
}

/* ---------- 通用段落头 ---------- */
.page-contact .section-head {
  margin-bottom: 24px;
}

.page-contact .section-head__index {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 9px 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-900);
  background: var(--circuit);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-contact .section-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .section-head p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 246, 255, 0.74);
}

/* ===========================================================
   01 · 问题类型选择器（命令台）
   =========================================================== */

.page-contact .issue-picker {
  position: relative;
  border: 1px solid var(--pc-edge);
  background: linear-gradient(160deg, rgba(18, 41, 74, 0.92), rgba(11, 27, 51, 0.88));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .issue-picker__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .issue-picker__tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--pc-edge);
}

.page-contact .issue-picker__tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 15px 14px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--rock);
  cursor: pointer;
  border-right: 1px solid var(--pc-edge-soft);
  border-bottom: 1px solid var(--pc-edge-soft);
  transition: color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .issue-picker__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--violet);
}

.page-contact .issue-picker__tab:hover {
  color: var(--mist);
  background: rgba(47, 216, 208, 0.07);
}

.page-contact .issue-picker:has(#issue-bind:checked) label[for="issue-bind"],
.page-contact .issue-picker:has(#issue-update:checked) label[for="issue-update"],
.page-contact .issue-picker:has(#issue-open:checked) label[for="issue-open"],
.page-contact .issue-picker:has(#issue-biz:checked) label[for="issue-biz"] {
  color: var(--mist);
  background: rgba(255, 106, 43, 0.13);
  box-shadow: inset 0 -2px 0 var(--signal);
}

.page-contact .issue-picker:has(#issue-bind:checked) label[for="issue-bind"] .issue-picker__no,
.page-contact .issue-picker:has(#issue-update:checked) label[for="issue-update"] .issue-picker__no,
.page-contact .issue-picker:has(#issue-open:checked) label[for="issue-open"] .issue-picker__no,
.page-contact .issue-picker:has(#issue-biz:checked) label[for="issue-biz"] .issue-picker__no {
  color: var(--signal);
}

.page-contact .issue-picker__panel {
  display: block;
  padding: 26px 20px 30px;
}

.page-contact .issue-picker:has(input:checked) .issue-picker__panel {
  display: none;
}

.page-contact .issue-picker:has(#issue-bind:checked) .issue-picker__panel--bind,
.page-contact .issue-picker:has(#issue-update:checked) .issue-picker__panel--update,
.page-contact .issue-picker:has(#issue-open:checked) .issue-picker__panel--open,
.page-contact .issue-picker:has(#issue-biz:checked) .issue-picker__panel--biz {
  display: block;
  animation: pc-fade 320ms var(--ease);
}

@keyframes pc-fade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.page-contact .issue-picker__panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .issue-picker__panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 246, 255, 0.78);
}

.page-contact .issue-picker__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--pc-edge);
}

.page-contact .issue-picker__list li {
  position: relative;
  padding: 11px 0 11px 20px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 246, 255, 0.85);
  border-bottom: 1px dashed var(--pc-edge-soft);
}

.page-contact .issue-picker__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 19px;
  width: 7px;
  height: 7px;
  background: var(--lemon);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .issue-picker__route {
  margin: 0;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  background: rgba(47, 216, 208, 0.09);
  border-left: 3px solid var(--circuit);
}

.page-contact .issue-picker__route .mono {
  color: var(--circuit);
}

/* ===========================================================
   宽幅视觉停顿
   =========================================================== */

.page-contact .contact-break {
  margin: 12px 0 0;
  padding: 0;
}

.page-contact .contact-break img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06) brightness(0.92);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 26px));
}

.page-contact .contact-break__caption {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--ochre);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--rock);
}

/* ===========================================================
   02 · 三条官方通道
   =========================================================== */

.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .contact-channel {
  position: relative;
  padding: 34px 20px 24px;
  background: linear-gradient(165deg, rgba(18, 41, 74, 0.86), rgba(11, 27, 51, 0.78));
  border: 1px solid var(--pc-edge);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .contact-channel:hover {
  border-color: var(--pc-edge-hot);
  transform: translateY(-3px);
}

.page-contact .contact-channel__tag {
  position: absolute;
  top: 14px;
  left: 20px;
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-900);
  background: var(--signal);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-contact .contact-channel__tag--circuit {
  background: var(--circuit);
}

.page-contact .contact-channel__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .contact-channel__value {
  margin: 0 0 14px;
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--lemon);
  background: rgba(6, 14, 26, 0.66);
  border-left: 3px solid var(--signal);
  word-break: break-all;
}

.page-contact .contact-channel--phone .contact-channel__value {
  font-size: 18px;
  letter-spacing: 0.08em;
}

.page-contact .contact-channel__use {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 246, 255, 0.76);
}

/* ===========================================================
   03 · 紧急问题提交清单
   =========================================================== */

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

.page-contact .contact-check__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 6px 20px 2px;
  border-bottom: 1px solid var(--pc-edge-soft);
  transition: background-color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-contact .contact-check__item:hover {
  background: var(--pc-wash);
  padding-left: 12px;
}

.page-contact .contact-check__no {
  display: inline-block;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-contact .contact-check__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-contact .contact-check__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(242, 246, 255, 0.74);
}

/* ===========================================================
   04 · 商务与合作
   =========================================================== */

.page-contact .contact-biz {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 26px 20px;
  background: rgba(122, 92, 255, 0.07);
  border: 1px solid rgba(122, 92, 255, 0.32);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .contact-biz__intro h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-biz__intro p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 246, 255, 0.78);
}

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

.page-contact .contact-biz__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(122, 92, 255, 0.36);
}

.page-contact .contact-biz__row:first-child {
  border-top: 1px dashed rgba(122, 92, 255, 0.36);
}

.page-contact .contact-biz__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-contact .contact-biz__row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 246, 255, 0.82);
}

.page-contact .contact-biz__row .mono {
  color: var(--circuit);
}

/* ===========================================================
   05 · 运营地址与备案
   =========================================================== */

.page-contact .contact-place {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .contact-place__media {
  margin: 0;
}

.page-contact .contact-place__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.9);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 20px));
}

.page-contact .contact-place__media .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

.page-contact .contact-place__sheet {
  padding: 22px 18px;
  background: rgba(6, 14, 26, 0.62);
  border: 1px solid var(--pc-edge);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);
}

.page-contact .contact-place__dl {
  margin: 0;
}

.page-contact .contact-place__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--pc-edge-soft);
  transition: transform 160ms var(--ease);
}

.page-contact .contact-place__row:hover {
  transform: translateX(4px);
}

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

.page-contact .contact-place__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mist);
  word-break: break-all;
}

.page-contact .contact-place__note {
  margin: 18px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.78;
  color: rgba(242, 246, 255, 0.72);
  background: rgba(47, 216, 208, 0.07);
  border-left: 3px solid var(--circuit);
}

/* ===========================================================
   06 · 响应时效
   =========================================================== */

.page-contact .contact-sla {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid rgba(255, 106, 43, 0.3);
}

.page-contact .contact-sla__item {
  position: relative;
  padding: 22px 0 22px 20px;
  border-bottom: 1px solid rgba(139, 154, 179, 0.18);
}

.page-contact .contact-sla__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, 0.18);
}

.page-contact .contact-sla__num {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lemon);
}

.page-contact .contact-sla__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-sla__item p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(242, 246, 255, 0.74);
}

.page-contact .contact-sla__foot {
  margin: 32px 0 0;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(242, 246, 255, 0.78);
  background: rgba(18, 41, 74, 0.6);
  border-left: 3px solid var(--circuit);
}

.page-contact .contact-sla__foot a {
  color: var(--circuit);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 216, 208, 0.4);
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-contact .contact-sla__foot a:hover {
  color: var(--lemon);
  border-color: var(--lemon);
}

/* ===========================================================
   响应式
   =========================================================== */

@media (min-width: 640px) {
  .page-contact .contact-hero h1 {
    font-size: 40px;
  }

  .page-contact .section-head h2 {
    font-size: 28px;
  }

  .page-contact .issue-picker__tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .issue-picker__panel {
    padding: 30px 32px 36px;
  }

  .page-contact .contact-biz__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .page-contact .contact-place__row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-contact .contact-channel__value {
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 40px 0 72px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 48px;
  }

  .page-contact .contact-hero__beacon {
    justify-self: end;
    width: 240px;
  }

  .page-contact .contact-channels {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .contact-channel--mail { grid-column: span 5; }
  .page-contact .contact-channel--phone { grid-column: span 4; }
  .page-contact .contact-channel--addr { grid-column: span 3; }

  .page-contact .contact-channel--addr .contact-channel__value {
    font-size: 13px;
    line-height: 1.75;
  }

  .page-contact .contact-biz {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 44px;
    padding: 34px 36px;
  }

  .page-contact .contact-place {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .contact-place__media img {
    aspect-ratio: 16 / 7;
  }

  .page-contact .contact-sla {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 30px;
  }

  .page-contact .contact-sla__item {
    padding: 26px 0 26px 20px;
    border-bottom: none;
    border-top: none;
  }

  .page-contact .contact-sla__item::before {
    top: 34px;
  }

  .page-contact .contact-check__item {
    grid-template-columns: 56px minmax(0, 1fr) minmax(0, 1fr);
    align-items: baseline;
    gap: 22px;
  }

  .page-contact .contact-check__item h3 {
    margin-bottom: 0;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero h1 {
    font-size: 46px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__beacon {
    animation: none;
    opacity: 0.9;
  }

  .page-contact .contact-channel:hover,
  .page-contact .contact-check__item:hover,
  .page-contact .contact-place__row:hover {
    transform: none;
  }

  .page-contact .issue-picker:has(#issue-bind:checked) .issue-picker__panel--bind,
  .page-contact .issue-picker:has(#issue-update:checked) .issue-picker__panel--update,
  .page-contact .issue-picker:has(#issue-open:checked) .issue-picker__panel--open,
  .page-contact .issue-picker:has(#issue-biz:checked) .issue-picker__panel--biz {
    animation: none;
  }
}