.page-contact {
  --contact-cut: 22px;
  --contact-cut-sm: 14px;
  --contact-panel-bg: #0c2742;
  --contact-panel-grad: linear-gradient(155deg, rgba(0, 229, 208, 0.55) 0%, rgba(0, 229, 208, 0.12) 45%, rgba(124, 243, 230, 0.42) 100%);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(167, 182, 200, 0.5);
}

.page-contact .crumbs a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.page-contact .crumbs a:hover {
  color: var(--c-cyan);
  border-bottom-color: rgba(0, 229, 208, 0.6);
}

.page-contact .crumbs [aria-current="page"] {
  color: var(--c-paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(48px, 7vw, 88px);
  position: relative;
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 22%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 229, 208, 0.12), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero__split {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.page-contact .contact-hero__lead .mono-index {
  color: var(--c-cyan);
  margin: 0 0 18px;
}

.page-contact .contact-hero__lead h1 {
  font-size: var(--fz-56);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.03;
  color: var(--c-paper);
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 15ch;
}

.page-contact .contact-hero__lead .lede {
  max-width: 56ch;
  color: var(--c-mist);
  font-size: var(--fz-19);
  line-height: 1.85;
  margin: 0 0 clamp(24px, 3vw, 34px);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-contact .contact-hero__aside {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(160deg, rgba(18, 58, 94, 0.78), rgba(11, 27, 51, 0.92));
  border-left: 1px solid rgba(0, 229, 208, 0.42);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
}

.page-contact .contact-hero__aside-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-contact .contact-rank {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-rank li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(167, 182, 200, 0.16);
  color: var(--c-paper);
  font-size: var(--fz-16);
  line-height: 1.55;
}

.page-contact .contact-rank li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-rank .mono-index {
  color: var(--c-cyan-soft);
  font-size: 13px;
}

/* ---------- 合作方向 + 表单 ---------- */
.page-contact .contact-board {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-contact .contact-board__head {
  max-width: 64ch;
  margin-bottom: clamp(34px, 5vw, 58px);
}

.page-contact .contact-board__head h2 {
  font-size: var(--fz-38);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--c-paper);
  margin: 12px 0 16px;
}

.page-contact .contact-board__intro {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0;
}

.page-contact .contact-board__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(34px, 5vw, 56px);
  align-items: start;
}

.page-contact .track-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(28px, 3.6vw, 44px);
}

.page-contact .track {
  position: relative;
  padding-left: clamp(46px, 5vw, 62px);
}

.page-contact .track__badge {
  position: absolute;
  left: 0;
  top: 2px;
  width: clamp(30px, 3.4vw, 38px);
  height: clamp(30px, 3.4vw, 38px);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-ink);
  background: var(--c-cyan);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 66% 100%, 0 100%);
}

.page-contact .track h3 {
  font-size: var(--fz-26);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-paper);
  margin: 0 0 10px;
}

.page-contact .track p {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0 0 10px;
}

.page-contact .track .track__meta {
  font-size: 14px;
  color: rgba(167, 182, 200, 0.74);
  border-left: 2px solid rgba(0, 229, 208, 0.38);
  padding-left: 12px;
  margin: 0;
}

/* 表单面板 */
.page-contact .intent-frame {
  padding: 1px;
  background: var(--contact-panel-grad);
  clip-path: polygon(0 var(--contact-cut), var(--contact-cut) 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
}

.page-contact .intent-panel {
  background: var(--contact-panel-bg);
  clip-path: polygon(0 var(--contact-cut), var(--contact-cut) 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  padding: clamp(22px, 3vw, 34px);
}

.page-contact .intent-panel__head {
  padding-bottom: clamp(16px, 2.2vw, 24px);
  border-bottom: 1px solid rgba(0, 229, 208, 0.22);
  margin-bottom: clamp(20px, 2.6vw, 28px);
}

.page-contact .intent-panel__head .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .intent-panel__head h2 {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-paper);
  margin: 10px 0 8px;
}

.page-contact .intent-panel__head p {
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}

.page-contact .intent-panel__body {
  display: grid;
  gap: clamp(16px, 2vw, 22px);
}

.page-contact .field {
  display: grid;
  gap: 8px;
}

.page-contact .field__label {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--c-paper);
  font-weight: 600;
  margin: 0;
}

.page-contact .field__input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  background: rgba(5, 11, 24, 0.66);
  border: 1px solid rgba(167, 182, 200, 0.26);
  border-radius: 0;
  color: var(--c-paper);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-contact .field__input::placeholder {
  color: rgba(167, 182, 200, 0.52);
}

.page-contact .field__input:focus {
  outline: none;
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 2px rgba(0, 229, 208, 0.18);
}

.page-contact .field__textarea {
  resize: vertical;
  min-height: 96px;
  font-family: var(--font-sans);
}

.page-contact .choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .choice {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.page-contact .choice input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.page-contact .choice span {
  display: block;
  padding: 9px 14px;
  font-size: 14px;
  color: var(--c-mist);
  background: rgba(5, 11, 24, 0.6);
  border: 1px solid rgba(167, 182, 200, 0.28);
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}

.page-contact .choice input:checked + span {
  color: var(--c-ink);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-contact .choice input:focus-visible + span {
  box-shadow: 0 0 0 2px rgba(0, 229, 208, 0.42);
}

.page-contact .choice:hover span {
  border-color: rgba(0, 229, 208, 0.6);
}

.page-contact .intent-submit {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

.page-contact .intent-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(167, 182, 200, 0.82);
}

/* ---------- 流程 ---------- */
.page-contact .contact-process {
  padding: clamp(56px, 8vw, 104px) 0;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-process::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 60%, rgba(0, 229, 208, 0.06) 60%, rgba(0, 229, 208, 0.06) 100%);
  pointer-events: none;
}

.page-contact .contact-process__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 5vw, 62px);
  align-items: start;
}

.page-contact .contact-process__head {
  margin-bottom: clamp(30px, 4vw, 46px);
}

.page-contact .contact-process__head .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .contact-process__head h2 {
  font-size: var(--fz-38);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--c-paper);
  margin: 12px 0 14px;
}

.page-contact .contact-process__head p {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0;
  max-width: 52ch;
}

.page-contact .step-track {
  list-style: none;
  margin: 0 0 0 5px;
  padding: 0 0 0 clamp(22px, 3vw, 34px);
  border-left: 1px solid rgba(0, 229, 208, 0.32);
}

.page-contact .step {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px) 0;
}

.page-contact .step + .step {
  border-top: 1px solid rgba(167, 182, 200, 0.14);
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: calc(clamp(18px, 2.4vw, 26px) + 8px);
  width: 9px;
  height: 9px;
  margin-left: -1px;
  border: 1px solid var(--c-cyan);
  background: var(--c-steel);
  transform: rotate(45deg);
  transition: background 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-contact .step:hover::before {
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 208, 0.16);
}

.page-contact .step__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--c-cyan-soft);
}

.page-contact .step__body h3 {
  font-size: var(--fz-19);
  font-weight: 700;
  color: var(--c-paper);
  margin: 0 0 8px;
}

.page-contact .step__body p {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0;
}

.page-contact .step__body .step__meta {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(167, 182, 200, 0.72);
}

.page-contact .contact-process__media {
  margin: 0;
  position: relative;
}

.page-contact .contact-process__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-contact .contact-process__cap {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(167, 182, 200, 0.72);
}

/* ---------- 优先受理 ---------- */
.page-contact .contact-priority {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-contact .contact-priority__head {
  max-width: 68ch;
  margin-bottom: clamp(34px, 4.6vw, 54px);
}

.page-contact .contact-priority__head .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .contact-priority__head h2 {
  font-size: var(--fz-38);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--c-paper);
  margin: 12px 0 14px;
}

.page-contact .contact-priority__intro {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0;
}

.page-contact .priority-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 28px);
}

.page-contact .priority {
  position: relative;
  padding: clamp(22px, 2.8vw, 30px);
  background: linear-gradient(180deg, rgba(18, 58, 94, 0.55), rgba(5, 11, 24, 0.5));
  border-top: 2px solid rgba(0, 229, 208, 0.5);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .priority__mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-cyan);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.page-contact .priority h3 {
  font-size: var(--fz-19);
  font-weight: 700;
  color: var(--c-paper);
  margin: 0 0 10px;
}

.page-contact .priority p {
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.85;
  margin: 0;
}

.page-contact .priority .priority__need {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(167, 182, 200, 0.16);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(124, 243, 230, 0.82);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-channels {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-contact .channels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(34px, 4.6vw, 58px);
  align-items: start;
}

.page-contact .channels-info__head {
  margin-bottom: clamp(26px, 3.4vw, 40px);
}

.page-contact .channels-info__head .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .channels-info__head h2 {
  font-size: var(--fz-38);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--c-paper);
  margin: 12px 0 0;
}

.page-contact .channel-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 24px) 0;
  border-top: 1px solid rgba(167, 182, 200, 0.16);
}

.page-contact .channel dt {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-contact .channel dd {
  margin: 0;
}

.page-contact .channel__value {
  margin: 0 0 8px;
  font-size: var(--fz-19);
  font-weight: 700;
  color: var(--c-paper);
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .channel__note {
  margin: 0;
  color: var(--c-mist);
  font-size: 14.5px;
  line-height: 1.85;
  max-width: 56ch;
}

.page-contact .channels-media {
  margin: 0;
  position: relative;
}

.page-contact .channels-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .channels-media::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: -14px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 208, 0.6), transparent);
}

/* ---------- FAQ ---------- */
.page-contact .contact-faq {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-contact .contact-faq__head {
  max-width: 62ch;
  margin-bottom: clamp(30px, 4vw, 46px);
}

.page-contact .contact-faq__head .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .contact-faq__head h2 {
  font-size: var(--fz-38);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--c-paper);
  margin: 12px 0 0;
}

.page-contact .faq-strip {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid rgba(167, 182, 200, 0.18);
}

.page-contact .faq {
  border-bottom: 1px solid rgba(167, 182, 200, 0.18);
  padding: clamp(16px, 2vw, 20px) 0;
}

.page-contact .faq summary {
  cursor: pointer;
  list-style: none;
  position: relative;
  padding: 4px 36px 4px 0;
  font-size: var(--fz-16);
  font-weight: 600;
  color: var(--c-paper);
  line-height: 1.7;
  transition: color 0.2s var(--ease-out);
}

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

.page-contact .faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--c-cyan);
  border: 1px solid rgba(0, 229, 208, 0.38);
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.page-contact .faq[open] summary::after {
  content: "−";
  background: var(--c-cyan);
  color: var(--c-ink);
}

.page-contact .faq summary:hover {
  color: var(--c-cyan-soft);
}

.page-contact .faq p {
  margin: 10px 0 4px;
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.85;
  max-width: 62ch;
}

.page-contact .faq a {
  color: var(--c-cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-closing {
  padding: clamp(48px, 7vw, 88px) 0;
  position: relative;
}

.page-contact .contact-closing::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 208, 0.55) 30%, rgba(0, 229, 208, 0.15) 75%, transparent);
}

.page-contact .closing-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.6vw, 44px);
  align-items: end;
}

.page-contact .closing-strip__main .mono-index {
  color: var(--c-cyan);
  margin: 0;
}

.page-contact .closing-strip__main h2 {
  font-size: var(--fz-26);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-paper);
  margin: 12px 0 14px;
  line-height: 1.32;
}

.page-contact .closing-strip__main p {
  color: var(--c-mist);
  font-size: var(--fz-16);
  line-height: 1.85;
  margin: 0;
  max-width: 56ch;
}

.page-contact .closing-strip__addr {
  margin: 0 0 12px;
  font-size: var(--fz-16);
  color: var(--c-paper);
  line-height: 1.7;
}

.page-contact .closing-strip__time {
  margin: 0;
  padding-top: 10px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
  border-top: 1px solid rgba(0, 229, 208, 0.3);
  display: inline-block;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .channel {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 760px) {
  .page-contact .priority-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .faq-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(30px, 4.4vw, 56px);
  }
}

@media (min-width: 860px) {
  .page-contact .closing-strip {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }
  .page-contact .closing-strip__meta {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 84px);
  }
}

@media (min-width: 920px) {
  .page-contact .channels-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-board__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
  .page-contact .contact-board__right {
    position: sticky;
    top: 96px;
  }
  .page-contact .contact-process__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 84px);
  }
  .page-contact .contact-process__media {
    position: sticky;
    top: 104px;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-hero__lead h1 {
    max-width: none;
  }
  .page-contact .intent-panel,
  .page-contact .contact-hero__aside {
    clip-path: polygon(0 var(--contact-cut-sm), var(--contact-cut-sm) 0, 100% 0, 100% calc(100% - var(--contact-cut-sm)), calc(100% - var(--contact-cut-sm)) 100%, 0 100%);
  }
  .page-contact .intent-frame {
    clip-path: polygon(0 var(--contact-cut-sm), var(--contact-cut-sm) 0, 100% 0, 100% calc(100% - var(--contact-cut-sm)), calc(100% - var(--contact-cut-sm)) 100%, 0 100%);
  }
  .page-contact .choice-row {
    gap: 8px;
  }
  .page-contact .choice span {
    padding: 8px 11px;
    font-size: 13.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .page-contact .step::before,
  .page-contact .faq summary::after {
    transition: none !important;
  }
}
<<<END>>>