.page-contact {
  --co-gap: clamp(18px, 3vw, 34px);
  --co-cool: rgba(47, 230, 200, .34);
  --co-warm: rgba(255, 122, 89, .34);
  --co-card: linear-gradient(152deg, rgba(18, 48, 78, .96) 0%, rgba(12, 32, 54, .94) 62%, rgba(14, 39, 64, .9) 100%);
  position: relative;
  display: block;
  color: var(--mist);
  background:
    radial-gradient(980px 460px at 82% -6%, rgba(53, 167, 255, .18), transparent 64%),
    radial-gradient(720px 400px at 2% 10%, rgba(47, 230, 200, .1), transparent 68%),
    var(--deep);
  padding-bottom: clamp(36px, 6vw, 80px);
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  padding: clamp(20px, 3.5vw, 40px) 0 clamp(26px, 4vw, 52px);
}

.page-contact .co-hero__grid {
  display: grid;
  gap: var(--co-gap);
  align-items: center;
  margin-top: clamp(16px, 3vw, 30px);
}

@media (min-width: 920px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

.page-contact .co-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .co-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 54px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .co-hero__lede {
  max-width: 62ch;
  margin: 0 0 26px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist-dim);
}

.page-contact .co-hero__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 0;
  padding: 0;
}

.page-contact .co-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 108px;
}

.page-contact .co-hero__stat-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-contact .co-hero__stat-key {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .05em;
  color: var(--mist-dim);
}

.page-contact .co-hero__figure {
  margin: 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(140deg, rgba(47, 230, 200, .16), rgba(53, 167, 255, .1) 55%, rgba(255, 122, 89, .12));
  box-shadow: var(--shadow-panel);
}

.page-contact .co-hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 工作台 ---------- */
.page-contact .co-workbench {
  padding: clamp(24px, 4vw, 56px) 0;
}

.page-contact .co-workbench__grid {
  display: grid;
  gap: var(--co-gap);
}

@media (min-width: 980px) {
  .page-contact .co-workbench__grid {
    grid-template-columns: minmax(0, 1fr) minmax(290px, 350px);
    align-items: start;
  }
}

.page-contact .co-workbench__head .lede {
  margin-bottom: 0;
}

.page-contact .co-dirs {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
}

@media (min-width: 720px) {
  .page-contact .co-dirs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .co-dir:nth-child(2) {
    margin-top: 26px;
  }

  .page-contact .co-dir:nth-child(3) {
    grid-column: 1 / -1;
    margin-top: 26px;
  }
}

.page-contact .co-dir {
  position: relative;
  padding: 24px 24px 22px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--co-card);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  transition: transform .3s cubic-bezier(.22, .7, .3, 1), border-color .3s ease;
}

.page-contact .co-dir::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
  opacity: .45;
  transition: opacity .3s ease;
}

.page-contact .co-dir:hover,
.page-contact .co-dir:focus-within {
  transform: translateY(-4px);
  border-color: var(--co-cool);
}

.page-contact .co-dir:hover::before,
.page-contact .co-dir:focus-within::before {
  opacity: 1;
}

.page-contact .co-dir__idx {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-contact .co-dir__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--mist);
}

.page-contact .co-dir__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist-dim);
}

.page-contact .co-dir__scene {
  margin: 14px 0 0;
  padding: 11px 14px;
  border-radius: var(--radius-s);
  border-left: 2px solid rgba(47, 230, 200, .35);
  background: rgba(47, 230, 200, .07);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist-dim);
  transition: background .3s ease, color .3s ease;
}

.page-contact .co-dir:hover .co-dir__scene,
.page-contact .co-dir:focus-within .co-dir__scene {
  background: rgba(47, 230, 200, .14);
  color: var(--mist);
}

.page-contact .co-dir__tag {
  margin: 16px 0 0;
}

/* ---------- 右侧联系面板 ---------- */
.page-contact .co-panel {
  border-radius: var(--radius-l);
  border: 1px solid var(--co-cool);
  background: linear-gradient(160deg, rgba(22, 57, 92, .98), rgba(14, 39, 64, .96));
  box-shadow: 0 40px 80px -58px rgba(47, 230, 200, .9), var(--shadow-panel);
  padding: 26px 24px 24px;
}

@media (min-width: 980px) {
  .page-contact .co-panel {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

.page-contact .co-panel__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .co-panel__title {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .co-panel__note {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-contact .co-panel__list {
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .co-panel__row {
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .co-panel__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .co-panel__key {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
}

.page-contact .co-panel__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .co-panel__hint {
  margin: 0 0 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--mist-dim);
}

.page-contact .co-panel__btn {
  display: flex;
  width: 100%;
  justify-content: center;
}

/* ---------- 数据引用 ---------- */
.page-contact .co-ref {
  padding: clamp(30px, 5vw, 72px) 0;
}

.page-contact .co-ref__grid {
  display: grid;
  gap: var(--co-gap);
  align-items: start;
}

@media (min-width: 940px) {
  .page-contact .co-ref__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

.page-contact .co-ref__note {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: rgba(11, 30, 51, .6);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-contact .co-ref__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .co-ref__item {
  padding: 16px 18px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--co-cool);
  background: rgba(11, 30, 51, .72);
  transition: border-color .28s ease, background .28s ease;
}

.page-contact .co-ref__item:hover {
  border-color: var(--co-cool);
  background: rgba(18, 48, 78, .78);
}

.page-contact .co-ref__item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .co-ref__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist-dim);
}

/* ---------- 专题共建 ---------- */
.page-contact .co-feature {
  padding: clamp(28px, 4vw, 64px) 0;
}

.page-contact .co-feature__box {
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background:
    radial-gradient(560px 300px at 92% 0%, rgba(255, 122, 89, .12), transparent 68%),
    linear-gradient(160deg, rgba(18, 48, 78, .9), rgba(11, 30, 51, .92));
  box-shadow: var(--shadow-panel);
}

.page-contact .co-feature__head .lede {
  max-width: 70ch;
}

.page-contact .co-feature__steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 820px) {
  .page-contact .co-feature__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .co-feature__step {
  padding: 18px 20px 20px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: rgba(11, 30, 51, .6);
}

.page-contact .co-feature__step-idx {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-contact .co-feature__step h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .co-feature__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist-dim);
}

/* ---------- 区域服务 ---------- */
.page-contact .co-region {
  padding: clamp(28px, 4vw, 64px) 0;
}

.page-contact .co-region__grid {
  display: grid;
  gap: var(--co-gap);
  align-items: center;
}

@media (min-width: 940px) {
  .page-contact .co-region__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

.page-contact .co-region__points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .co-region__points li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist-dim);
}

.page-contact .co-region__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 230, 200, .14);
}

.page-contact .co-region__figure {
  margin: 0;
  aspect-ratio: 8 / 5;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(53, 167, 255, .16), rgba(11, 30, 51, .9) 55%, rgba(47, 230, 200, .14));
  box-shadow: var(--shadow-panel);
}

.page-contact .co-region__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 对接流程 ---------- */
.page-contact .co-flow {
  padding: clamp(30px, 5vw, 72px) 0;
}

.page-contact .co-flow__head .lede {
  max-width: 68ch;
}

.page-contact .co-flow__rail {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: clamp(24px, 3.5vw, 38px) 0 20px;
  padding: 0 clamp(6px, 2vw, 18px);
}

.page-contact .co-flow__svg {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.page-contact .co-flow__node {
  position: relative;
  z-index: 1;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid rgba(53, 167, 255, .5);
  animation: co-node-pulse 4.4s ease-in-out infinite;
}

.page-contact .co-flow__node--2 { animation-delay: .55s; }
.page-contact .co-flow__node--3 { animation-delay: 1.1s; }
.page-contact .co-flow__node--4 { animation-delay: 1.65s; }

@keyframes co-node-pulse {
  0%, 100% {
    background: var(--deep);
    border-color: rgba(53, 167, 255, .5);
    box-shadow: none;
  }
  45% {
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 0 6px rgba(47, 230, 200, .14);
  }
}

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

@media (min-width: 760px) {
  .page-contact .co-flow__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
}

.page-contact .co-flow__btn {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: rgba(18, 48, 78, .55);
  color: var(--mist-dim);
  font-family: var(--font-body);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: border-color .25s ease, background .25s ease, color .25s ease;
}

.page-contact .co-flow__btn:hover {
  border-color: var(--co-cool);
  color: var(--mist);
}

.page-contact .co-flow__btn[aria-selected="true"] {
  border-color: var(--co-cool);
  background: rgba(47, 230, 200, .12);
  color: var(--mist);
}

.page-contact .co-flow__btn-idx {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .co-flow__btn-label {
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .co-flow__panel {
  margin-top: 18px;
  padding: 22px 24px 24px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--co-card);
  box-shadow: var(--shadow-panel);
}

.page-contact .co-flow__panel h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
  color: var(--mist);
}

.page-contact .co-flow__panel p {
  margin: 0;
  max-width: 72ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--mist-dim);
}

.page-contact .co-flow__panel[hidden] {
  display: none;
}

/* ---------- 收尾 ---------- */
.page-contact .co-close {
  padding: clamp(10px, 2vw, 22px) 0 clamp(10px, 2vw, 26px);
}

.page-contact .co-close__box {
  display: grid;
  gap: var(--co-gap);
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  background: linear-gradient(180deg, rgba(18, 48, 78, .82), rgba(11, 30, 51, .9));
}

@media (min-width: 900px) {
  .page-contact .co-close__box {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

.page-contact .co-close__copy .lede {
  margin-bottom: 0;
}

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

.page-contact .co-close__link {
  display: block;
  padding: 13px 18px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: rgba(11, 30, 51, .7);
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  transition: transform .26s ease, border-color .26s ease, background .26s ease;
}

.page-contact .co-close__link:hover,
.page-contact .co-close__link:focus-visible {
  transform: translateX(4px);
  border-color: var(--co-cool);
  background: rgba(47, 230, 200, .1);
}

@media (hover: none) {
  .page-contact .co-dir:hover,
  .page-contact .co-close__link:hover {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-flow__node {
    animation: none;
    background: var(--cyan);
    border-color: var(--cyan);
  }

  .page-contact .co-dir,
  .page-contact .co-close__link {
    transition: none;
  }
}