/* ============================================================
   商务合作页 · page-contact
   ============================================================ */

.page-contact {
  --contact-hair: rgba(51, 225, 224, .22);
  --contact-edge: rgba(27, 42, 85, .9);
  --contact-surface: #0B1226;
  --contact-surface-2: #101A38;
  --contact-stroke: rgba(127, 196, 234, .16);
  position: relative;
  color: var(--star-white);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(8px, 1.6vw, 16px);
}

/* ---------- 通用眉题 ---------- */
.page-contact .contact-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .2em;
  color: var(--electric-cyan);
}

/* ============================================================
   首屏
   ============================================================ */
.page-contact .contact-hero {
  position: relative;
  padding-top: clamp(14px, 2.4vw, 26px);
  padding-bottom: clamp(44px, 6vw, 78px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 56px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--star-white);
  max-width: 16em;
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
  .page-contact .contact-hero__title {
    background: linear-gradient(116deg, #F5F7FF 0%, #F5F7FF 52%, #33E1E0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.page-contact .contact-hero__lede {
  margin: 0 0 clamp(24px, 3.2vw, 32px);
  max-width: 36em;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

/* 三条合作入口 */
.page-contact .contact-paths {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .contact-path {
  display: block;
  position: relative;
  padding: 18px 18px 22px;
  background: var(--contact-surface-2);
  color: inherit;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 6%, 100% 100%, 0 94%);
  transition: background .28s var(--ease), transform .28s var(--ease);
}

.page-contact .contact-path--cyan { --path-accent: var(--electric-cyan); }
.page-contact .contact-path--purple { --path-accent: var(--nebula-purple); }
.page-contact .contact-path--amber { --path-accent: var(--amber); }

.page-contact .contact-path:hover {
  background: var(--orbit-blue);
  transform: translateY(-2px);
}

.page-contact .contact-path:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--electric-cyan);
}

.page-contact .contact-path__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .18em;
  color: var(--path-accent, var(--electric-cyan));
}

.page-contact .contact-path__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--star-white);
}

.page-contact .contact-path__hint {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

/* 右侧联系面板 */
.page-contact .contact-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 30px);
  background: linear-gradient(168deg, #101A38 0%, #0B1226 78%);
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius-md);
}

.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  top: -46px;
  right: -46px;
  width: 170px;
  height: 170px;
  background: radial-gradient(circle, rgba(108, 75, 244, .55) 0%, rgba(108, 75, 244, 0) 68%);
  pointer-events: none;
}

.page-contact .contact-panel__eyebrow {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .2em;
  color: var(--electric-cyan);
}

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

.page-contact .contact-panel__key {
  display: block;
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .12em;
  color: var(--star-grey);
}

.page-contact .contact-panel__val {
  display: block;
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--star-white);
  word-break: break-word;
}

.page-contact .contact-panel__val--phone {
  font-size: 18px;
  color: var(--amber);
  letter-spacing: .04em;
}

.page-contact .contact-panel__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--contact-edge);
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

/* 首屏主视觉 */
.page-contact .contact-hero__shot {
  position: relative;
  margin: clamp(30px, 4.6vw, 58px) 0 0;
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .contact-hero__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-contact .contact-hero__shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(118deg, rgba(5, 7, 15, .88) 0%, rgba(5, 7, 15, .34) 48%, rgba(108, 75, 244, .26) 100%);
  pointer-events: none;
}

.page-contact .contact-hero__cap {
  position: absolute;
  left: clamp(16px, 3vw, 32px);
  bottom: clamp(14px, 2.4vw, 24px);
  z-index: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .1em;
  color: var(--star-grey);
}

/* ============================================================
   区块骨架
   ============================================================ */
.page-contact .contact-sec {
  position: relative;
  padding-block: clamp(46px, 7vw, 86px);
}

.page-contact .contact-sec--indigo {
  background: var(--nebula-indigo);
}

.page-contact .contact-sec--teal {
  background: var(--deep-teal);
}

.page-contact .contact-sec--indigo::before,
.page-contact .contact-sec--teal::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(51, 225, 224, 0) 0%, rgba(51, 225, 224, .5) 42%, rgba(51, 225, 224, 0) 100%);
}

.page-contact .contact-head {
  max-width: 60ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .contact-head__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .2em;
  color: var(--electric-cyan);
}

.page-contact .contact-head__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--star-white);
}

.page-contact .contact-head__note {
  margin: 0;
  max-width: 48ch;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

/* ============================================================
   合作方向
   ============================================================ */
.page-contact .track-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .track {
  position: relative;
  padding: 26px clamp(20px, 2.8vw, 30px) 30px;
  background: var(--contact-surface);
  border-top: 2px solid var(--track-accent, var(--electric-cyan));
}

.page-contact .track--content { --track-accent: var(--electric-cyan); }
.page-contact .track--data { --track-accent: var(--nebula-purple); }
.page-contact .track--media { --track-accent: var(--amber); }

.page-contact .track__num {
  display: inline-block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .16em;
  color: var(--track-accent, var(--electric-cyan));
}

.page-contact .track__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  font-weight: 800;
  color: var(--star-white);
}

.page-contact .track__who {
  margin: 0 0 16px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-contact .track__who b {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: .14em;
  color: var(--track-accent, var(--electric-cyan));
  font-weight: 500;
}

.page-contact .track__text {
  margin: 0 0 18px;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

.page-contact .track__list {
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--contact-edge);
  font-size: var(--fs-note);
  line-height: var(--lh-note);
}

.page-contact .track__list li {
  position: relative;
  padding-left: 18px;
  color: var(--star-grey);
}

.page-contact .track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 1px;
  background: var(--track-accent, var(--electric-cyan));
}

/* ============================================================
   对接流程
   ============================================================ */
.page-contact .flow-rail {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.6vw, 28px);
  padding-bottom: clamp(28px, 4vw, 42px);
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 22px;
  top: 52px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(51, 225, 224, .6) 0%, rgba(27, 42, 85, .25) 100%);
}

.page-contact .flow-step__num {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(51, 225, 224, .42);
  background: var(--nebula-indigo);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--electric-cyan);
}

.page-contact .flow-step__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  font-weight: 800;
  color: var(--star-white);
}

.page-contact .flow-step__text {
  margin: 0 0 12px;
  max-width: 58ch;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

.page-contact .flow-step__out {
  margin: 0;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-contact .flow-step__out b {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .16em;
  font-weight: 500;
  color: var(--amber);
}

.page-contact .flow-visual {
  margin: clamp(32px, 4.6vw, 52px) 0 0;
}

.page-contact .flow-visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius-md);
}

.page-contact .flow-visual figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .08em;
  color: var(--star-grey);
}

/* ============================================================
   联系方式与响应节奏
   ============================================================ */
.page-contact .contact-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .detail-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--contact-stroke);
}

.page-contact .detail-item:first-child {
  padding-top: 0;
}

.page-contact .detail-item:last-child {
  border-bottom: none;
}

.page-contact .detail-item__key {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: .18em;
  color: var(--electric-cyan);
}

.page-contact .detail-item__val {
  display: block;
  font-size: 17px;
  line-height: 1.55;
  font-weight: 600;
  color: var(--star-white);
}

.page-contact .detail-item__val--mono {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  word-break: break-word;
}

.page-contact .detail-item__val--phone {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-contact .detail-item__note {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-contact .contact-sla {
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid rgba(51, 225, 224, .24);
  border-radius: var(--radius-md);
  background: rgba(5, 7, 15, .38);
}

.page-contact .contact-sla__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  font-weight: 800;
  color: var(--star-white);
}

.page-contact .contact-sla__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-grey);
}

.page-contact .contact-sla__list li {
  position: relative;
  padding-left: 20px;
}

.page-contact .contact-sla__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid var(--electric-cyan);
}

/* ============================================================
   常见问题
   ============================================================ */
.page-contact .qa-list {
  border-top: 1px solid var(--contact-edge);
}

.page-contact .qa {
  border-bottom: 1px solid var(--contact-edge);
}

.page-contact .qa__q {
  position: relative;
  padding: 20px 46px 20px 0;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--star-white);
  transition: color .25s var(--ease);
}

.page-contact .qa__q::-webkit-details-marker {
  display: none;
}

.page-contact .qa__q:hover {
  color: var(--electric-cyan);
}

.page-contact .qa__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--electric-cyan);
}

.page-contact .qa[open] .qa__q::after {
  content: "\2013";
}

.page-contact .qa__a {
  padding: 0 0 22px;
  max-width: 72ch;
}

.page-contact .qa__a p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--star-grey);
}

/* ============================================================
   底部行动区
   ============================================================ */
.page-contact .contact-cta {
  padding-block: clamp(42px, 6vw, 72px);
  border-top: 1px solid var(--contact-edge);
  background: linear-gradient(118deg, rgba(108, 75, 244, .22) 0%, rgba(5, 7, 15, 0) 62%);
}

.page-contact .contact-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: center;
}

.page-contact .contact-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.32;
  font-weight: 800;
  color: var(--star-white);
}

.page-contact .contact-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width: 720px) {
  .page-contact .contact-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .track-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .track + .track {
    border-left: 1px solid var(--contact-edge);
  }
}

@media (min-width: 900px) {
  .page-contact .flow-visual {
    width: min(560px, 60%);
    margin-left: auto;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .contact-panel {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-details {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-contact .contact-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-path,
  .page-contact .qa__q {
    transition: none;
  }
}
<<<END>>>