.page-contact {
  --co-panel: rgba(17, 24, 39, 0.72);
  --co-edge: rgba(34, 211, 238, 0.22);
  --co-glow: rgba(34, 211, 238, 0.14);
  --co-warm: rgba(255, 107, 44, 0.14);
  --co-radius-sm: 10px;
}

/* ---------- 顶部框景 ---------- */
.page-contact .co-hero {
  position: relative;
  padding: 28px 0 44px;
  overflow: hidden;
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 320px;
  background: radial-gradient(60% 100% at 22% 0%, var(--co-glow), transparent 68%),
              radial-gradient(50% 90% at 88% 20%, var(--co-warm), transparent 70%);
  pointer-events: none;
}

.page-contact .co-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-contact .co-hero__main h1 {
  margin: 12px 0 16px;
  font-family: var(--display);
  font-size: clamp(30px, 7.4vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-contact .co-hero__main .lead {
  max-width: 60ch;
  color: var(--slate);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .co-hero__aside {
  position: relative;
  padding: 20px 20px 18px;
  border: 1px solid var(--co-edge);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(34, 211, 238, 0.08), var(--co-panel) 62%);
  box-shadow: inset 0 1px 0 rgba(229, 242, 255, 0.06);
}

.page-contact .co-hero__aside::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent 72%);
}

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

.page-contact .co-hero__fact {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .co-hero__fact:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .co-hero__num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-contact .co-hero__cap {
  font-size: 14px;
  color: var(--slate);
}

/* ---------- 合作方向 ---------- */
.page-contact .co-coop__head {
  align-items: flex-start;
}

.page-contact .co-coop__head a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--co-edge);
}

.page-contact .co-coop__head a:hover,
.page-contact .co-coop__head a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .co-coop__media {
  margin: 24px 0 28px;
}

.page-contact .co-coop__layout {
  display: grid;
  gap: 28px;
}

.page-contact .co-coop__list {
  display: flex;
  gap: 8px;
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .co-coop__tab {
  flex: 0 0 auto;
  padding: 10px 18px;
  border: 1px solid var(--co-edge);
  border-radius: 999px;
  background: rgba(229, 242, 255, 0.04);
  color: var(--ice);
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease),
    border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-contact .co-coop__tab:hover {
  transform: translateY(-1px);
  border-color: var(--cyan);
}

.page-contact .co-coop__tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: #100603;
}

.page-contact .co-coop__tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .co-coop__panels {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-contact .co-opp {
  position: relative;
  padding: 24px 22px 20px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(34, 211, 238, 0.07), var(--co-panel) 58%);
  transition: border-left-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-contact .co-opp:hover {
  border-left-color: var(--orange);
  transform: translateY(-2px);
}

.page-contact .co-opp__idx {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .co-opp__title {
  margin: 8px 0 10px;
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--ice);
}

.page-contact .co-opp__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .co-opp__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .co-opp__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ice);
}

.page-contact .co-opp__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .co-opp__meta {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13px;
  color: var(--slate);
}

.page-contact .co-coop__side {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-contact .co-side {
  padding: 22px 20px;
}

.page-contact .co-side__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .co-side__mail {
  margin: 0 0 12px;
}

.page-contact .co-side__mail a {
  font-family: var(--mono);
  font-size: clamp(14px, 3.9vw, 19px);
  font-weight: 700;
  color: var(--orange);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .co-side__mail a:hover,
.page-contact .co-side__mail a:focus-visible {
  color: var(--cyan);
}

.page-contact .co-side__note {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .co-side__phone {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .co-side__phone-label {
  font-size: 13px;
  color: var(--slate);
}

.page-contact .co-side__phone a {
  font-size: 18px;
  font-weight: 700;
  color: var(--ice);
  text-decoration: none;
}

.page-contact .co-side__phone a:hover,
.page-contact .co-side__phone a:focus-visible {
  color: var(--cyan);
}

/* ---------- 合作流程 ---------- */
.page-contact .co-flow {
  position: relative;
  margin: 0;
  padding: 4px 0 0;
  list-style: none;
  counter-reset: coflow;
}

.page-contact .co-flow__item {
  position: relative;
  padding: 0 0 20px 34px;
  counter-increment: coflow;
}

.page-contact .co-flow__item::before {
  content: counter(coflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.page-contact .co-flow__item::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--co-edge), transparent);
}

.page-contact .co-flow__item:last-child {
  padding-bottom: 0;
}

.page-contact .co-flow__item:last-child::after {
  display: none;
}

.page-contact .co-flow__title {
  margin: 0 0 6px;
  font-family: var(--display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ice);
}

.page-contact .co-flow__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 联系方式锚点 ---------- */
.page-contact .co-channels {
  position: relative;
}

.page-contact .co-channels__grid {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-contact .co-channels__intro {
  max-width: 56ch;
  margin: 0 0 26px;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .co-anchor {
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .co-anchor__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .co-anchor__value {
  display: block;
  font-family: var(--mono);
  font-size: clamp(19px, 5.4vw, 38px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--orange);
  text-decoration: none;
  word-break: break-all;
  transition: color 200ms var(--ease);
}

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

.page-contact .co-anchor--phone .co-anchor__value {
  color: var(--ice);
}

.page-contact .co-anchor--phone .co-anchor__value:hover,
.page-contact .co-anchor--phone .co-anchor__value:focus-visible {
  color: var(--cyan);
}

.page-contact .co-channels__addr {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .co-channels__addr-label {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  border: 1px solid var(--co-edge);
  border-radius: 999px;
  font-size: 12px;
  color: var(--cyan);
}

.page-contact .co-channels__media {
  border-radius: var(--radius);
}

/* ---------- 反馈材料 ---------- */
.page-contact .co-prep__head {
  align-items: flex-start;
}

.page-contact .co-prep__grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-contact .co-prep__card {
  padding: 22px 20px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .co-prep__card .card__body {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .co-prep__card .card__meta {
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
  font-size: 12.5px;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

/* ---------- 服务时间 ---------- */
.page-contact .co-hours__inner {
  display: grid;
  gap: 28px;
}

.page-contact .co-hours__intro {
  max-width: 56ch;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .co-hours__callout {
  margin: 0;
}

.page-contact .co-hours__callout p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

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

.page-contact .co-hours__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .co-hours__time {
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-contact .co-hours__text {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ice);
}

/* ---------- 运营主体与备案 ---------- */
.page-contact .co-legal {
  padding-bottom: 56px;
}

.page-contact .co-legal__inner {
  display: grid;
  gap: 26px;
  padding: 28px 22px;
  border: 1px solid var(--co-edge);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(11, 27, 58, 0.72), rgba(7, 18, 38, 0.9));
}

.page-contact .co-legal__intro {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .co-legal__intro a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--co-edge);
}

.page-contact .co-legal__intro a:hover,
.page-contact .co-legal__intro a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .co-legal__facts {
  display: grid;
  gap: 14px;
  margin: 0;
  align-content: start;
}

.page-contact .co-legal__fact {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--co-radius-sm);
  background: rgba(229, 242, 255, 0.03);
}

.page-contact .co-legal__fact dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .co-legal__fact dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ice);
  word-break: break-all;
}

.page-contact .co-legal__fact dd.mono {
  color: var(--lime);
}

/* ---------- 平板以上 ---------- */
@media (min-width: 700px) {
  .page-contact .co-hero {
    padding: 40px 0 56px;
  }

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

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

  .page-contact .co-hours__row {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .co-legal__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    align-items: end;
    gap: 44px;
  }

  .page-contact .co-coop__layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-contact .co-coop__side {
    position: sticky;
    top: 104px;
  }

  .page-contact .co-channels__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
  }

  .page-contact .co-hours__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .co-coop__media {
    margin: 30px 0 36px;
  }
}

/* ---------- 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .co-coop__tab,
  .page-contact .co-opp,
  .page-contact .co-anchor__value {
    transition: none;
  }

  .page-contact .co-coop__tab:hover,
  .page-contact .co-opp:hover {
    transform: none;
  }
}