.page-contact {
  background: var(--seagull);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 01 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  background: var(--night);
  color: var(--seagull);
  padding: clamp(28px, 4vw, 48px) 0 clamp(64px, 9vw, 128px);
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -18%;
  width: clamp(360px, 62vw, 900px);
  height: clamp(420px, 78vw, 1080px);
  background:
    radial-gradient(circle at 30% 30%, rgba(18, 227, 198, 0.22), transparent 62%),
    linear-gradient(158deg, rgba(122, 92, 255, 0.20), rgba(255, 106, 69, 0.10) 58%, transparent 88%);
  clip-path: polygon(22% 0, 100% 5%, 100% 100%, 0 92%);
  transform: rotate(-6deg);
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}

.page-contact .contact-hero__crumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .contact-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-dark-soft);
}

.page-contact .contact-hero__crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(246, 248, 249, 0.32);
}

.page-contact .contact-hero__crumb a {
  color: var(--on-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-contact .contact-hero__crumb a:hover,
.page-contact .contact-hero__crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-hero__crumb [aria-current="page"] {
  color: var(--cyan);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--moss);
}

.page-contact .contact-hero__eyebrow b {
  color: var(--violet);
  font-weight: 700;
}

.page-contact .contact-hero__title {
  margin: 0 0 26px;
  font-size: clamp(2.6rem, 7vw, 6.2rem);
  font-weight: 250;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--seagull);
  max-width: 15ch;
}

.page-contact .contact-hero__lead {
  margin: 0 0 34px;
  max-width: 60ch;
  font-size: clamp(1rem, 1.1vw, 1.075rem);
  line-height: 1.85;
  color: var(--on-dark);
}

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

.page-contact .contact-hero .btn--ghost,
.page-contact .contact-hero__ghost {
  color: var(--seagull);
  border-color: rgba(246, 248, 249, 0.34);
  background: transparent;
}

.page-contact .contact-hero .btn--ghost:hover,
.page-contact .contact-hero .btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .contact-hero__figure {
  margin: 0;
}

.page-contact .contact-hero__figure .figure__frame {
  clip-path: polygon(9% 0, 100% 0, 91% 100%, 0 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(246, 248, 249, 0.06);
}

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

.page-contact .contact-hero__figure .figure__caption {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--on-dark-soft);
  max-width: 34ch;
}

/* ---------- 02 合作方向 ---------- */

.page-contact .contact-tracks {
  padding: clamp(64px, 9vw, 128px) 0;
  background: var(--seagull);
}

.page-contact .contact-tracks__head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .contact-tracks__intro {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .contact-tracks__grid {
  position: relative;
}

.page-contact .contact-tracks__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .contact-tracks__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .contact-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: var(--mineral);
  color: var(--ink-soft);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-contact .contact-chip:hover {
  background: rgba(11, 44, 77, 0.08);
  color: var(--ink);
}

.page-contact #ct-all:checked ~ .contact-tracks__filter [for="ct-all"],
.page-contact #ct-data:checked ~ .contact-tracks__filter [for="ct-data"],
.page-contact #ct-org:checked ~ .contact-tracks__filter [for="ct-org"],
.page-contact #ct-media:checked ~ .contact-tracks__filter [for="ct-media"] {
  background: var(--deep);
  color: var(--seagull);
}

.page-contact .contact-tracks__radio:focus-visible + .contact-tracks__filter,
.page-contact .contact-tracks__radio:focus-visible ~ .contact-tracks__filter {
  outline: none;
}

.page-contact .contact-tracks__filter .contact-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .contact-tracks__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.page-contact #ct-data:checked ~ .contact-tracks__cards .contact-track:not(.contact-track--data),
.page-contact #ct-org:checked ~ .contact-tracks__cards .contact-track:not(.contact-track--org),
.page-contact #ct-media:checked ~ .contact-tracks__cards .contact-track:not(.contact-track--media) {
  display: none;
}

.page-contact .contact-track {
  position: relative;
  padding: 30px 26px 26px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-track:hover,
.page-contact .contact-track:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px -26px rgba(11, 44, 77, 0.42);
}

.page-contact .contact-track__line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
}

.page-contact .contact-track--data .contact-track__line {
  background: linear-gradient(90deg, var(--cyan), var(--deep));
}

.page-contact .contact-track--org .contact-track__line {
  background: linear-gradient(90deg, var(--clay), var(--moss));
}

.page-contact .contact-track--media .contact-track__line {
  background: linear-gradient(90deg, var(--violet), var(--coral));
}

.page-contact .contact-track__tag {
  margin: 8px 0 16px;
}

.page-contact .contact-track__title {
  margin: 0 0 14px;
  font-size: clamp(1.2rem, 1.6vw, 1.45rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .contact-track__for {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .contact-track__copy {
  margin: 0 0 20px;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .contact-track__list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .contact-track__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.925rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .contact-track__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .contact-track--org .contact-track__list li::before {
  background: var(--clay);
}

.page-contact .contact-track--media .contact-track__list li::before {
  background: var(--violet);
}

.page-contact .contact-track__more {
  border-top: 1px dashed var(--line-strong);
  padding-top: 14px;
  font-size: 0.9rem;
}

.page-contact .contact-track__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--deep);
  padding: 4px 0;
}

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

.page-contact .contact-track__more summary::after {
  content: " ＋";
  color: var(--clay);
}

.page-contact .contact-track__more[open] summary::after {
  content: " －";
}

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

.page-contact .contact-track__more ul {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 03 流程 ---------- */

.page-contact .contact-process {
  padding: clamp(64px, 9vw, 128px) 0;
  background: var(--mineral);
  position: relative;
}

.page-contact .contact-process::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 52px;
  background: var(--seagull);
  clip-path: polygon(0 0, 100% 0, 100% 6%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-process__head {
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-contact .contact-process__intro {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .contact-steps {
  position: relative;
  margin: 0 0 clamp(36px, 5vw, 60px);
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  counter-reset: step;
}

.page-contact .contact-step {
  position: relative;
  padding: 24px 22px 22px;
  border-radius: var(--radius-md);
  background: var(--seagull);
  border: 1px solid var(--line);
}

.page-contact .contact-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--violet);
  margin-bottom: 12px;
}

.page-contact .contact-step__name {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .contact-step__time {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--clay);
}

.page-contact .contact-step__body {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .contact-process__figure {
  margin: 0;
}

.page-contact .contact-process__figure .figure__frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(11, 44, 77, 0.06);
}

.page-contact .contact-process__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-process__figure .figure__caption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

/* ---------- 04 常问 ---------- */

.page-contact .contact-faq {
  padding: clamp(64px, 9vw, 120px) 0;
  background: var(--seagull);
}

.page-contact .contact-faq__head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .contact-faq__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .contact-faq__item {
  padding: 26px 24px;
  border-radius: var(--radius-md);
  background: var(--mineral);
  border-left: 3px solid var(--deep);
}

.page-contact .contact-faq__q {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .contact-faq__a {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 05 联系方式 ---------- */

.page-contact .contact-reach {
  padding: clamp(64px, 9vw, 120px) 0 clamp(56px, 8vw, 104px);
  background: var(--seagull);
}

.page-contact .contact-reach__head {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-contact .contact-reach__intro {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .contact-card {
  font-family: var(--font-mono);
  background: var(--deep);
  color: var(--seagull);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3.4vw, 40px) clamp(20px, 3.2vw, 44px);
}

.page-contact .contact-card__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(246, 248, 249, 0.28);
}

.page-contact .contact-card__row--last {
  border-bottom: none;
  padding-bottom: 4px;
}

.page-contact .contact-card__key {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .contact-card__val {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--seagull);
  word-break: break-word;
  user-select: all;
}

.page-contact .contact-card__val--mail {
  color: var(--cyan);
}

.page-contact .contact-card__val--addr {
  font-size: clamp(0.9rem, 1.3vw, 1rem);
}

.page-contact .contact-reach__note {
  margin: 20px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 06 优先队列 ---------- */

.page-contact .contact-priority {
  padding: 0 0 clamp(72px, 10vw, 140px);
  background: var(--seagull);
}

.page-contact .contact-priority__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  padding: clamp(30px, 5vw, 60px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 12%, rgba(18, 227, 198, 0.16), transparent 58%),
    var(--night);
  color: var(--seagull);
  position: relative;
  overflow: hidden;
}

.page-contact .contact-priority__panel::after {
  content: "";
  position: absolute;
  left: -10%;
  bottom: -40%;
  width: 70%;
  height: 120%;
  background: linear-gradient(120deg, rgba(122, 92, 255, 0.16), transparent 70%);
  clip-path: polygon(0 12%, 100% 0, 92% 100%, 0 92%);
  pointer-events: none;
}

.page-contact .contact-priority__copy,
.page-contact .contact-priority__side {
  position: relative;
  z-index: 1;
}

.page-contact .contact-priority__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--moss);
}

.page-contact .contact-priority__eyebrow b {
  color: var(--violet);
  font-weight: 700;
}

.page-contact .contact-priority__title {
  margin: 0 0 18px;
  font-size: clamp(1.55rem, 3vw, 2.4rem);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--seagull);
}

.page-contact .contact-priority__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-contact .contact-priority__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .contact-priority__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .contact-priority__list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--seagull);
}

.page-contact .contact-priority__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.66em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--clay);
}

.page-contact .contact-priority__tip {
  margin: 0;
  padding-top: 18px;
  border-top: 1px dashed rgba(246, 248, 249, 0.22);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--on-dark);
}

.page-contact .contact-priority__tip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 227, 198, 0.42);
}

.page-contact .contact-priority__tip a:hover,
.page-contact .contact-priority__tip a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 固定联系胶囊 ---------- */

.page-contact .contact-fab {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: var(--coral);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 14px 32px -14px rgba(255, 106, 69, 0.7);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-contact .contact-fab:hover,
.page-contact .contact-fab:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -16px rgba(255, 106, 69, 0.8);
}

.page-contact .contact-fab__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  animation: contact-fab-pulse 2.4s ease-in-out infinite;
}

@keyframes contact-fab-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-card__row {
    grid-template-columns: minmax(0, 180px) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-contact .contact-tracks__cards {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 1.05fr);
    gap: 24px;
  }

  .page-contact .contact-track:nth-child(2) {
    margin-top: 46px;
  }

  .page-contact .contact-track:nth-child(3) {
    margin-top: 14px;
  }

  .page-contact .contact-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .contact-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 44px;
    right: -18px;
    width: 34px;
    height: 2px;
    background: linear-gradient(90deg, var(--line-strong), transparent);
    transform: rotate(-9deg);
    transform-origin: left center;
    pointer-events: none;
  }

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

  .page-contact .contact-priority__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 1440px) {
  .page-contact .contact-hero__title {
    max-width: 16ch;
  }

  .page-contact .contact-tracks__cards {
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-track,
  .page-contact .contact-fab {
    transition: none;
  }

  .page-contact .contact-track:hover,
  .page-contact .contact-track:focus-within,
  .page-contact .contact-fab:hover,
  .page-contact .contact-fab:focus-visible {
    transform: none;
  }

  .page-contact .contact-fab__dot {
    animation: none;
  }
}