.page-contact {
  background: var(--navy);
  color: var(--flag-white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 64px) 0 56px;
  background: var(--navy);
}

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

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

.page-contact .pc-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 29, 58, 0.62) 0%, rgba(11, 29, 58, 0.88) 55%, var(--navy) 100%);
}

.page-contact .pc-hero__lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(247, 249, 252, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 249, 252, 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 86%);
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 2;
}

.page-contact .pc-hero .bw-breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 0;
  margin: 0 0 30px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(247, 249, 252, 0.6);
}

.page-contact .pc-hero .bw-breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .pc-hero .bw-breadcrumb li + li::before {
  content: "/";
  color: rgba(247, 249, 252, 0.32);
}

.page-contact .pc-hero .bw-breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-hero .bw-breadcrumb a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .pc-hero__rule {
  display: block;
  width: 158px;
  height: 6px;
  margin: 0 0 24px;
  background: var(--gold);
  transform: skewX(-24deg);
  transform-origin: left center;
}

.page-contact .pc-hero__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.05rem, 6vw, 4.2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  max-width: 22ch;
  color: var(--flag-white);
}

.page-contact .pc-hero__lead {
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: rgba(247, 249, 252, 0.84);
  margin: 0 0 38px;
}

.page-contact .pc-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 44px;
  margin: 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-contact .pc-hero__num {
  font-family: var(--font-num);
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-hero__meta .bw-unit {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(247, 249, 252, 0.7);
}

/* ===== 合作台面 ===== */
.page-contact .pc-desk {
  padding: 76px 0 0;
}

.page-contact .pc-desk__grid {
  display: grid;
  gap: 40px;
  align-items: start;
}

.page-contact .pc-card {
  position: relative;
  overflow: hidden;
  background: var(--navy-2);
  border: 1px solid var(--line);
}

.page-contact .pc-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--flag-blue) 0 25%,
    var(--flag-white) 25% 50%,
    var(--flag-red) 50% 75%,
    var(--flag-green) 75% 100%);
}

.page-contact .pc-card__media {
  height: 128px;
  overflow: hidden;
}

.page-contact .pc-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.66;
}

.page-contact .pc-card__body {
  padding: 26px 22px 28px;
}

.page-contact .pc-card .bw-h3 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
  color: var(--flag-white);
}

.page-contact .pc-contact {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .pc-contact__row {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-contact__k {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(247, 249, 252, 0.56);
  margin-bottom: 7px;
}

.page-contact .pc-contact__v {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .pc-contact__v .bw-num {
  font-family: var(--font-num);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--flag-white);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-copy {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  color: var(--gold);
  background: transparent;
  border: 1px solid rgba(232, 178, 58, 0.5);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .pc-copy:hover {
  background: rgba(232, 178, 58, 0.16);
}

.page-contact .pc-copy.is-done {
  color: var(--navy);
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .pc-card__note {
  margin: 20px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-size: 13px;
  line-height: 1.78;
  color: rgba(247, 249, 252, 0.66);
}

.page-contact .pc-card__jump {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.4);
  padding-bottom: 3px;
}

.page-contact .pc-card__jump:hover {
  border-bottom-color: var(--gold);
}

.page-contact .pc-desk__main {
  display: flex;
  flex-direction: column;
  gap: 64px;
  min-width: 0;
}

/* ===== 通用文本与标签 ===== */
.page-contact .bw-section__eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(247, 249, 252, 0.66);
}

.page-contact .bw-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  transform: rotate(45deg);
}

.page-contact .bw-dot--gold { background: var(--gold); }
.page-contact .bw-dot--blue { background: var(--flag-blue); }
.page-contact .bw-dot--red { background: var(--flag-red); }
.page-contact .bw-dot--green { background: var(--flag-green); }
.page-contact .bw-dot--yellow { background: var(--flag-yellow); }

.page-contact .bw-h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.26;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--flag-white);
}

.page-contact .bw-text {
  max-width: 62ch;
  margin: 0 0 4px;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(247, 249, 252, 0.8);
}

.page-contact .bw-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.45);
}

.page-contact .bw-link:hover {
  border-bottom-color: var(--gold);
}

/* ===== 合作方向筛选与卡片 ===== */
.page-contact .pc-dir__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 26px;
}

.page-contact .bw-filter__btn {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  color: rgba(247, 249, 252, 0.72);
  background: transparent;
  border: 1px solid var(--line);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .bw-filter__btn:hover {
  color: var(--flag-white);
  border-color: var(--line-strong);
}

.page-contact .bw-filter__btn[aria-pressed="true"] {
  color: var(--gold);
  background: var(--navy-2);
  border-color: rgba(232, 178, 58, 0.45);
  border-bottom-color: var(--gold);
}

.page-contact .pc-dir__grid {
  display: grid;
  gap: 18px;
}

.page-contact .pc-dir-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px 24px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line-ink);
  border-top: 5px solid var(--flag-blue);
}

.page-contact .pc-dir-card--blue { border-top-color: var(--flag-blue); }
.page-contact .pc-dir-card--red { border-top-color: var(--flag-red); }
.page-contact .pc-dir-card--green { border-top-color: var(--flag-green); }
.page-contact .pc-dir-card--yellow { border-top-color: var(--flag-yellow); }

.page-contact .pc-dir-card.is-hidden {
  display: none;
}

.page-contact .pc-dir-card .bw-tag {
  align-self: flex-start;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 3px 9px;
  color: var(--flag-white);
  background: var(--flag-blue);
}

.page-contact .pc-dir-card--red .bw-tag { background: var(--flag-red); }
.page-contact .pc-dir-card--green .bw-tag { background: var(--flag-green); }
.page-contact .pc-dir-card--yellow .bw-tag { background: var(--flag-yellow); color: var(--ink); }

.page-contact .pc-dir-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .pc-dir-card__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(16, 20, 24, 0.64);
}

.page-contact .pc-dir-card__list {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 4px 0 0;
  padding: 0;
}

.page-contact .pc-dir-card__list li {
  position: relative;
  padding-left: 17px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(16, 20, 24, 0.86);
}

.page-contact .pc-dir-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 7px;
  background: var(--flag-blue);
  transform: rotate(45deg);
}

.page-contact .pc-dir-card--red .pc-dir-card__list li::before { background: var(--flag-red); }
.page-contact .pc-dir-card--green .pc-dir-card__list li::before { background: var(--flag-green); }
.page-contact .pc-dir-card--yellow .pc-dir-card__list li::before { background: var(--flag-yellow); }

.page-contact .pc-dir-card__ask {
  margin: auto 0 0;
  padding-top: 15px;
  border-top: 1px dashed var(--line-ink);
  font-size: 13px;
  line-height: 1.65;
  color: rgba(16, 20, 24, 0.7);
}

/* ===== 四步流程 ===== */
.page-contact .pc-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .pc-step {
  position: relative;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .pc-step__no {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-step__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--flag-white);
}

.page-contact .pc-step__time {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--flag-green);
}

.page-contact .pc-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(247, 249, 252, 0.74);
}

.page-contact .pc-step__hover {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: rgba(232, 178, 58, 0.92);
  max-height: 200px;
  opacity: 1;
  transition: max-height 0.28s var(--ease), opacity 0.28s var(--ease);
}

/* ===== 纠错区 ===== */
.page-contact .pc-fix {
  margin-top: 76px;
  padding: 72px 0;
  background: var(--navy-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-fix__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-contact .pc-fix__intro .bw-btn {
  margin-top: 22px;
}

.page-contact .pc-fix__privacy {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 249, 252, 0.58);
  max-width: 46ch;
}

.page-contact .pc-fix__panel {
  position: relative;
  padding: 30px 26px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line-ink);
  border-top: 5px solid var(--flag-red);
}

.page-contact .pc-fix__panel-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.2rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .pc-fix__list {
  list-style: none;
  counter-reset: fix;
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
}

.page-contact .pc-fix__list li {
  counter-increment: fix;
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(16, 20, 24, 0.86);
}

.page-contact .pc-fix__list li::before {
  content: counter(fix, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.12em;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--flag-red);
}

.page-contact .pc-fix__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-ink);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(16, 20, 24, 0.68);
}

/* ===== 按钮 ===== */
.page-contact .bw-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}

.page-contact .bw-btn--gold {
  background: var(--gold);
  color: var(--ink);
}

.page-contact .bw-btn--gold:hover {
  background: #f3c65c;
}

.page-contact .bw-arrow {
  transition: transform 0.2s var(--ease);
}

.page-contact .bw-btn:hover .bw-arrow,
.page-contact .pc-card__jump:hover .bw-arrow,
.page-contact .pc-start__card:hover .bw-arrow {
  transform: translateX(4px);
}

/* ===== 常见问题 ===== */
.page-contact .pc-faq {
  padding: 76px 0 20px;
}

.page-contact .pc-faq__list {
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.page-contact .pc-faq__item {
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-faq__item summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 20px 46px 20px 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--flag-white);
  transition: color 0.2s var(--ease);
}

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

.page-contact .pc-faq__item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 1.4rem;
  line-height: 1;
  color: var(--gold);
}

.page-contact .pc-faq__item[open] summary::after {
  content: "–";
}

.page-contact .pc-faq__item summary:hover {
  color: var(--gold);
}

.page-contact .pc-faq__item .bw-disclosure__body {
  padding: 0 46px 22px 0;
}

.page-contact .pc-faq__item .bw-disclosure__body p {
  margin: 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(247, 249, 252, 0.78);
}

/* ===== 暖金分隔带 ===== */
.page-contact .pc-band {
  height: 2px;
  margin-top: 60px;
  background: linear-gradient(90deg, transparent, var(--gold) 16%, var(--gold) 84%, transparent);
}

/* ===== 入口区 ===== */
.page-contact .pc-start {
  padding: 60px 0 92px;
}

.page-contact .pc-start__grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .pc-start__card {
  display: block;
  padding: 26px 22px;
  text-decoration: none;
  background: var(--navy-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--flag-blue);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-start__card:nth-child(2) { border-left-color: var(--flag-green); }
.page-contact .pc-start__card:nth-child(3) { border-left-color: var(--flag-yellow); }

.page-contact .pc-start__card:hover {
  background: #16305a;
  border-color: var(--line-strong);
}

.page-contact .pc-start__k {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(247, 249, 252, 0.54);
}

.page-contact .pc-start__t {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--flag-white);
}

.page-contact .pc-start__d {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(247, 249, 252, 0.72);
}

.page-contact .pc-start__go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .pc-start__foot {
  max-width: 74ch;
  margin: 30px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.78;
  color: rgba(247, 249, 252, 0.68);
}

/* ===== 窄屏 ===== */
@media (max-width: 480px) {
  .page-contact .pc-hero {
    padding-top: calc(var(--header-h) + 44px);
  }

  .page-contact .pc-hero__meta {
    gap: 14px 26px;
  }

  .page-contact .pc-hero__num {
    font-size: 1.4rem;
  }

  .page-contact .pc-card__media {
    height: 104px;
  }

  .page-contact .pc-dir-card,
  .page-contact .pc-fix__panel {
    padding: 24px 18px;
  }

  .page-contact .pc-faq__item summary {
    padding-right: 34px;
  }

  .page-contact .pc-faq__item .bw-disclosure__body {
    padding-right: 4px;
  }
}

/* ===== 平板 ===== */
@media (min-width: 760px) {
  .page-contact .pc-dir__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

/* ===== 桌面：左固定右流动 ===== */
@media (min-width: 1024px) {
  .page-contact .pc-desk__grid {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: var(--gap);
  }

  .page-contact .pc-desk__rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .pc-hero__title {
    max-width: 24ch;
  }

  .page-contact .pc-fix__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: 56px;
  }
}

/* ===== 桌面：四步横向连线 ===== */
@media (min-width: 900px) {
  .page-contact .pc-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .pc-step {
    padding: 28px 26px 10px 0;
    border-top: 2px solid var(--line-strong);
    border-bottom: none;
  }

  .page-contact .pc-step:last-child {
    border-bottom: none;
  }

  .page-contact .pc-step::before {
    content: "";
    position: absolute;
    top: -7px;
    left: 0;
    width: 12px;
    height: 12px;
    background: var(--navy);
    border: 2px solid var(--gold);
  }

  .page-contact .pc-step__hover {
    max-height: 0;
    opacity: 0;
  }

  .page-contact .pc-step:hover .pc-step__hover,
  .page-contact .pc-step:focus-within .pc-step__hover {
    max-height: 200px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-copy,
  .page-contact .bw-filter__btn,
  .page-contact .bw-arrow,
  .page-contact .pc-start__card,
  .page-contact .pc-step__hover,
  .page-contact .pc-faq__item summary {
    transition: none;
  }

  .page-contact .bw-btn:hover .bw-arrow,
  .page-contact .pc-card__jump:hover .bw-arrow,
  .page-contact .pc-start__card:hover .bw-arrow {
    transform: none;
  }
}