.page-contact {
  --contact-line: rgba(37, 244, 208, 0.35);
  --contact-panel: rgba(17, 28, 51, 0.86);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(48px, 8vw, 104px)) 0 clamp(64px, 9vw, 120px);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(200deg, rgba(11, 18, 32, 0.35) 0%, rgba(11, 18, 32, 0.94) 62%, var(--ink) 100%),
    radial-gradient(circle at 78% 22%, rgba(37, 244, 208, 0.16), transparent 58%);
}

.page-contact .contact-hero__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2.4vw, 26px);
  max-width: 62ch;
}

.page-contact .contact-hero__title {
  margin: 0;
  color: var(--white);
  line-height: 0.98;
}

.page-contact .contact-hero__lead {
  margin: 0;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.8;
  color: var(--silver);
  max-width: 56ch;
}

.page-contact .contact-hero__facts {
  display: grid;
  gap: 14px;
  margin: clamp(6px, 1.6vw, 14px) 0 0;
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-hero__fact dd {
  margin: 0;
  font-size: clamp(17px, 1.6vw, 21px);
  color: var(--cyan);
  letter-spacing: 0.01em;
  word-break: break-word;
}

/* ---------- 渠道分流 ---------- */
.page-contact .contact-route {
  padding: clamp(64px, 9vw, 120px) 0 clamp(56px, 8vw, 108px);
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-contact .contact-route__head {
  max-width: 66ch;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-contact .contact-route__head h2 {
  margin: 12px 0 18px;
  color: var(--white);
}

.page-contact .contact-route__intro {
  color: var(--silver);
}

.page-contact .contact-route__map {
  position: relative;
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}

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

.page-contact .contact-route__lines path {
  fill: none;
  stroke: var(--contact-line);
  stroke-width: 1.5;
  stroke-dasharray: 6 8;
}

.page-contact .contact-route__lines circle {
  fill: var(--cyan);
}

.page-contact .contact-route__lines circle:last-child {
  fill: var(--flame);
}

.page-contact .contact-node {
  position: relative;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--contact-panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .contact-node:hover,
.page-contact .contact-node:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .contact-node__coord {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--flame);
  text-transform: uppercase;
}

.page-contact .contact-node--b .contact-node__coord {
  color: var(--amber);
}

.page-contact .contact-node--c .contact-node__coord {
  color: var(--data-green);
}

.page-contact .contact-node__title {
  margin: 12px 0 10px;
  font-size: clamp(20px, 2vw, 25px);
  color: var(--white);
}

.page-contact .contact-node__body {
  margin: 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .contact-node__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 244, 208, 0.4);
  padding-bottom: 2px;
}

.page-contact .contact-node__link:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .contact-route__figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-contact .contact-route__figure img {
  display: block;
  width: 100%;
  height: clamp(180px, 34vw, 300px);
  object-fit: cover;
}

.page-contact .contact-route__figure figcaption {
  padding: 12px 18px;
  background: var(--stand);
  color: var(--mist);
}

/* ---------- 直接联系 ---------- */
.page-contact .contact-reach {
  padding: clamp(64px, 9vw, 118px) 0;
}

.page-contact .contact-reach__head h2 {
  margin: 10px 0 0;
  color: var(--white);
}

.page-contact .contact-reach__grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  margin-top: clamp(32px, 4.4vw, 56px);
}

.page-contact .contact-reach__primary {
  padding: clamp(24px, 3vw, 38px);
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 88% 12%, rgba(37, 244, 208, 0.18), transparent 60%),
    var(--stand);
}

.page-contact .contact-reach__primary--flame {
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 107, 44, 0.2), transparent 60%),
    var(--stand);
}

.page-contact .contact-reach__primary--flame .contact-reach__value {
  color: var(--flame);
}

.page-contact .contact-reach__value {
  margin: 14px 0 12px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(20px, 2.9vw, 34px);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-reach__hint {
  margin: 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .contact-reach__aside {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 2.6vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(11, 18, 32, 0.7);
}

.page-contact .contact-reach__row p:last-child {
  margin: 6px 0 0;
  color: var(--white);
  font-size: 16px;
  line-height: 1.7;
}

.page-contact .contact-reach__note {
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--amber);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  max-width: 68ch;
}

/* ---------- 提交材料 ---------- */
.page-contact .contact-brief {
  padding: clamp(56px, 8vw, 108px) 0;
  background: var(--ink-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-brief__inner {
  display: grid;
  gap: clamp(32px, 4.4vw, 56px);
}

.page-contact .contact-brief__text h2 {
  margin: 12px 0 16px;
  color: var(--white);
}

.page-contact .contact-brief__text .prose {
  color: var(--silver);
}

.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .brief-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-contact .brief-list__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .brief-list__num {
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1.4;
  color: var(--cyan);
}

.page-contact .brief-list__title {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--white);
}

.page-contact .brief-list__item p {
  margin: 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.78;
}

/* ---------- 合作共建 ---------- */
.page-contact .contact-partner {
  padding: clamp(64px, 9vw, 118px) 0;
}

.page-contact .contact-partner__head {
  max-width: 64ch;
}

.page-contact .contact-partner__head h2 {
  margin: 12px 0 16px;
  color: var(--white);
}

.page-contact .contact-partner__intro {
  color: var(--silver);
}

.page-contact .partner-tabs {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-contact .partner-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-contact .partner-tabs .tab-btn {
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--silver);
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}

.page-contact .partner-tabs .tab-btn:hover {
  border-color: var(--cyan);
  color: var(--white);
}

.page-contact .partner-tabs .tab-btn[aria-selected="true"] {
  background: var(--cyan-soft);
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .partner-panel {
  padding: clamp(24px, 3.2vw, 40px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--contact-panel);
}

.page-contact .partner-panel__title {
  margin: 0 0 14px;
  font-size: clamp(19px, 2vw, 24px);
  color: var(--white);
}

.page-contact .partner-panel p {
  margin: 0 0 14px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
  max-width: 68ch;
}

.page-contact .partner-panel__label {
  color: var(--amber);
  margin-bottom: 10px;
}

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

.page-contact .partner-panel__list li {
  position: relative;
  padding-left: 20px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-contact .partner-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--flame);
}

.page-contact .contact-partner__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
  max-width: 68ch;
}

/* ---------- 典型场景 ---------- */
.page-contact .contact-scene {
  padding: clamp(56px, 8vw, 108px) 0 clamp(72px, 10vw, 130px);
}

.page-contact .contact-scene__head h2 {
  margin: 12px 0 0;
  color: var(--white);
}

.page-contact .scene-list {
  display: grid;
  gap: 0;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .scene-item {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 28px) 0;
  border-top: 1px solid var(--line);
  transition: padding-left 240ms var(--ease);
}

.page-contact .scene-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .scene-item:hover {
  padding-left: 12px;
}

.page-contact .scene-item__q {
  margin: 0;
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--white);
  line-height: 1.5;
}

.page-contact .scene-item__a {
  margin: 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
  max-width: 72ch;
}

.page-contact .scene-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 244, 208, 0.4);
}

.page-contact .scene-item__a a:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .contact-scene__lead {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
  max-width: 60ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

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

@media (min-width: 900px) {
  .page-contact .contact-route__map {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-route__lines {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
  }

  .page-contact .contact-node--a {
    grid-column: 1 / span 5;
    grid-row: 1;
  }

  .page-contact .contact-node--b {
    grid-column: 1 / span 5;
    grid-row: 2;
    margin-top: 8px;
  }

  .page-contact .contact-node--c {
    grid-column: 1 / span 5;
    grid-row: 3;
    margin-top: 8px;
    margin-left: 22px;
  }

  .page-contact .contact-route__figure {
    grid-column: 7 / span 6;
    grid-row: 1 / span 3;
    align-self: stretch;
  }

  .page-contact .contact-route__figure img {
    height: clamp(320px, 42vw, 520px);
  }

  .page-contact .contact-brief__inner {
    grid-template-columns: 5fr 7fr;
    align-items: start;
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .contact-brief__text {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

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

  .page-contact .contact-reach__primary {
    grid-column: span 5;
  }

  .page-contact .contact-reach__aside {
    grid-column: span 2 / -1;
    grid-template-columns: 1fr;
    align-content: start;
  }

  .page-contact .scene-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 4vw, 64px);
  }

  .page-contact .scene-item:nth-child(5),
  .page-contact .scene-item:nth-child(6) {
    border-bottom: 1px solid var(--line);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__inner {
    max-width: 70ch;
  }

  .page-contact .contact-node--c {
    margin-left: 42px;
  }
}
</