.page-contact {
  --contact-rule: 1px solid var(--bys-hairline);
  --contact-rule-dark: 1px solid rgba(11, 42, 69, 0.14);
  --contact-panel: linear-gradient(158deg, rgba(20, 80, 122, 0.4), rgba(6, 23, 37, 0.92));
  --contact-shadow: 0 18px 40px rgba(3, 12, 20, 0.45);
  background: var(--bys-midnight);
  color: var(--bys-frost);
  font-family: var(--bys-font-body);
  overflow-x: hidden;
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(22px, 4vw, 44px) clamp(34px, 5vw, 64px);
  background:
    repeating-linear-gradient(90deg, var(--bys-hairline-soft) 0 1px, transparent 1px 104px),
    radial-gradient(120% 90% at 88% -10%, rgba(20, 80, 122, 0.62), transparent 62%),
    var(--bys-midnight);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-contact .contact-hero__copy h1 {
  margin: 10px 0 0;
  font-family: var(--bys-font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7vw, 3.9rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--bys-frost);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(0.95rem, 2.4vw, 1.06rem);
  line-height: 1.75;
  color: var(--bys-steel);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: var(--contact-rule);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .contact-fact {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  border-left: 3px solid var(--bys-flare);
  padding-left: 12px;
}

.page-contact .contact-fact__num {
  font-family: var(--bys-font-mono);
  font-weight: 700;
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  letter-spacing: 0.02em;
  color: var(--bys-amber);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-contact .contact-fact__label {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--bys-steel);
}

.page-contact .contact-hero__media {
  margin: 0;
  border: 1px solid var(--bys-hairline);
  box-shadow: var(--contact-shadow);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 三条渠道 ---------- */
.page-contact .contact-lines {
  padding-block: clamp(36px, 5vw, 64px);
  background: linear-gradient(180deg, var(--bys-midnight), var(--bys-deep));
}

.page-contact .contact-lines__head h2 {
  margin: 8px 0 0;
  font-family: var(--bys-font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-contact .contact-lines__sub {
  margin: 12px 0 0;
  max-width: 52ch;
  color: var(--bys-steel);
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-contact .contact-lines__grid {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--bys-gap);
}

.page-contact .contact-line {
  position: relative;
  padding: clamp(18px, 3vw, 26px);
  background: var(--contact-panel);
  border: 1px solid var(--bys-hairline);
  border-top: 3px solid var(--bys-broadcast);
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

.page-contact .contact-line--phone {
  border-top-color: var(--bys-flare);
}

.page-contact .contact-line--mail {
  border-top-color: var(--bys-online);
}

.page-contact .contact-line__kicker {
  margin: 0;
  font-family: var(--bys-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--bys-steel);
  text-transform: uppercase;
}

.page-contact .contact-line__value {
  margin: 0;
  font-family: var(--bys-font-mono);
  font-weight: 700;
  font-size: clamp(1.02rem, 3.3vw, 1.32rem);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--bys-frost);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-line--phone .contact-line__value {
  color: var(--bys-amber);
}

.page-contact .contact-line__value--addr {
  font-family: var(--bys-font-body);
  font-weight: 600;
  font-size: clamp(0.98rem, 2.8vw, 1.08rem);
  line-height: 1.6;
}

.page-contact .contact-line__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--bys-steel);
}

.page-contact .contact-line__hint {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: var(--contact-rule);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: rgba(143, 166, 182, 0.85);
}

/* ---------- 渠道选择 ---------- */
.page-contact .contact-router {
  padding-block: clamp(36px, 5vw, 68px);
  background: var(--bys-paper);
  color: var(--bys-deep);
}

.page-contact .contact-router__eyebrow {
  margin: 0;
  font-family: var(--bys-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--bys-pitch);
  text-transform: uppercase;
}

.page-contact .contact-router__head h2 {
  margin: 8px 0 0;
  font-family: var(--bys-font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 4vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--bys-midnight);
}

.page-contact .contact-router__shell {
  margin-top: 26px;
  border: var(--contact-rule-dark);
  background: #efeade;
}

.page-contact .contact-router__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .contact-router__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
  border-bottom: var(--contact-rule-dark);
  background: rgba(195, 208, 216, 0.24);
}

.page-contact .contact-router__tab {
  flex: 1 1 auto;
  padding: 9px 14px;
  text-align: center;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--bys-deep);
  background: transparent;
  border: 1px solid transparent;
  transition: background var(--bys-speed) var(--bys-ease), color var(--bys-speed) var(--bys-ease);
  white-space: nowrap;
}

.page-contact .contact-router__tab:hover {
  border-color: rgba(11, 42, 69, 0.28);
}

.page-contact .contact-router__panels {
  padding: clamp(16px, 3vw, 26px);
}

.page-contact .contact-router__panel {
  display: none;
}

.page-contact #topic-access:checked ~ .contact-router__panels #panel-access,
.page-contact #topic-data:checked ~ .contact-router__panels #panel-data,
.page-contact #topic-coop:checked ~ .contact-router__panels #panel-coop,
.page-contact #topic-privacy:checked ~ .contact-router__panels #panel-privacy {
  display: block;
}

.page-contact #topic-access:checked ~ .contact-router__tabs .contact-router__tab[for="topic-access"],
.page-contact #topic-data:checked ~ .contact-router__tabs .contact-router__tab[for="topic-data"],
.page-contact #topic-coop:checked ~ .contact-router__tabs .contact-router__tab[for="topic-coop"],
.page-contact #topic-privacy:checked ~ .contact-router__tabs .contact-router__tab[for="topic-privacy"] {
  background: var(--bys-midnight);
  color: var(--bys-frost);
  border-color: var(--bys-midnight);
  box-shadow: inset 0 -3px 0 var(--bys-flare);
}

.page-contact .contact-router__radio:focus-visible ~ .contact-router__tabs {
  outline: 2px solid var(--bys-amber);
  outline-offset: -2px;
}

.page-contact .contact-router__lead {
  margin: 0 0 12px;
  font-size: clamp(1rem, 2.8vw, 1.12rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--bys-midnight);
}

.page-contact .contact-router__rec {
  margin: 0;
  padding: 14px 16px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--bys-deep);
  background: rgba(20, 80, 122, 0.08);
  border-left: 3px solid var(--bys-pitch);
}

.page-contact .contact-router__tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  font-family: var(--bys-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--bys-frost);
  background: var(--bys-pitch);
}

.page-contact .contact-router__tips {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-router__tips li {
  position: relative;
  padding-left: 20px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--bys-deep);
}

.page-contact .contact-router__tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--bys-flare);
}

.page-contact .contact-router__foot {
  margin: 16px 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--bys-deep);
}

.page-contact .contact-router__foot .bys-data {
  font-family: var(--bys-font-mono);
  font-weight: 700;
  color: var(--bys-midnight);
  overflow-wrap: anywhere;
}

.page-contact .contact-router__panel .bys-btn {
  margin-top: 18px;
  color: var(--bys-midnight);
  border-color: rgba(11, 42, 69, 0.4);
}

.page-contact .contact-router__panel .bys-btn:hover {
  border-color: var(--bys-flare);
  color: var(--bys-flare);
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-prep {
  padding-block: clamp(36px, 5vw, 66px);
  background:
    repeating-linear-gradient(0deg, var(--bys-hairline-soft) 0 1px, transparent 1px 72px),
    var(--bys-deep);
}

.page-contact .contact-prep__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .contact-prep__intro h2 {
  margin: 8px 0 0;
  font-family: var(--bys-font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 4vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.page-contact .contact-prep__lead {
  margin: 14px 0 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--bys-steel);
}

.page-contact .contact-prep__note {
  margin: 14px 0 0;
  font-family: var(--bys-font-mono);
  font-size: 0.74rem;
  line-height: 1.6;
  color: rgba(143, 166, 182, 0.9);
}

.page-contact .contact-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .contact-checklist__item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: var(--contact-rule);
}

.page-contact .contact-checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 1px solid var(--bys-steel);
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: background var(--bys-speed) var(--bys-ease), border-color var(--bys-speed) var(--bys-ease);
}

.page-contact .contact-checklist__box:checked {
  background: var(--bys-flare);
  border-color: var(--bys-flare);
}

.page-contact .contact-checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--bys-midnight);
  border-bottom: 2px solid var(--bys-midnight);
  transform: rotate(42deg);
}

.page-contact .contact-checklist__box:focus-visible {
  outline: 2px solid var(--bys-amber);
  outline-offset: 2px;
}

.page-contact .contact-checklist__label {
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--bys-frost);
}

.page-contact .contact-checklist__box:checked + .contact-checklist__label {
  color: var(--bys-steel);
  text-decoration: line-through;
  text-decoration-color: rgba(242, 106, 46, 0.7);
}

/* ---------- 服务时间 ---------- */
.page-contact .contact-window {
  padding-block: clamp(34px, 5vw, 62px);
  background: var(--bys-midnight);
}

.page-contact .contact-window__band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(112deg, rgba(242, 106, 46, 0.16) 0%, rgba(20, 80, 122, 0.32) 46%, rgba(6, 23, 37, 0.9) 100%);
  border: 1px solid var(--bys-hairline);
  border-left: 4px solid var(--bys-flare);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-window__clock {
  font-family: var(--bys-font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 6vw, 2.6rem);
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--bys-frost);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-contact .contact-window__body h2 {
  margin: 0;
  font-family: var(--bys-font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-contact .contact-window__body p {
  margin: 10px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--bys-steel);
  max-width: 62ch;
}

.page-contact .contact-window__notes {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .contact-window__notes li {
  padding-top: 14px;
  border-top: 1px solid var(--bys-hairline);
}

.page-contact .contact-window__k {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--bys-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--bys-online);
}

.page-contact .contact-window__notes p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--bys-steel);
}

/* ---------- 来访 ---------- */
.page-contact .contact-visit {
  padding-block: clamp(36px, 5vw, 68px);
  background: linear-gradient(180deg, var(--bys-midnight), #04101a 78%);
}

.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-contact .contact-visit__copy h2 {
  margin: 8px 0 0;
  font-family: var(--bys-font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-contact .contact-visit__addr {
  margin: 16px 0 0;
  padding: 12px 0 12px 14px;
  border-left: 3px solid var(--bys-flare);
  font-size: clamp(0.95rem, 2.8vw, 1.06rem);
  font-weight: 600;
  line-height: 1.7;
  color: var(--bys-frost);
}

.page-contact .contact-visit__copy p {
  margin: 12px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--bys-steel);
  max-width: 56ch;
}

.page-contact .contact-visit__meta {
  font-family: var(--bys-font-mono);
  font-size: 0.78rem !important;
  letter-spacing: 0.02em;
  color: rgba(143, 166, 182, 0.95) !important;
  overflow-wrap: anywhere;
}

.page-contact .contact-visit__copy .bys-btn {
  margin-top: 20px;
}

.page-contact .contact-visit__media {
  margin: 0;
  border: 1px solid var(--bys-hairline);
  box-shadow: var(--contact-shadow);
}

.page-contact .contact-visit__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .contact-fact {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

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

  .page-contact .contact-line--addr {
    grid-column: 1 / -1;
  }

  .page-contact .contact-window__band {
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
    align-items: center;
    gap: 26px;
  }

  .page-contact .contact-window__notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-lines__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-line--addr {
    grid-column: auto;
  }

  .page-contact .contact-window__band {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    padding: 34px 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-router__tab,
  .page-contact .contact-checklist__box {
    transition: none;
  }
}