.page-contact {
  --pc-shadow: 6px 6px 0 0 rgba(37, 225, 206, .18);
  --pc-shadow-lg: 10px 10px 0 0 rgba(37, 225, 206, .26);
  --pc-hair: rgba(124, 147, 166, .4);
  --pc-block-gap: clamp(28px, 5vw, 72px);

  display: block;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--steel);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(124, 147, 166, .55);
}

.page-contact .breadcrumb a {
  color: var(--paper-mid);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(26px, 4.5vw, 54px) 0 clamp(44px, 6vw, 84px);
  background:
    radial-gradient(circle at 86% 4%, rgba(37, 225, 206, .12), transparent 44%),
    radial-gradient(circle at 4% 92%, rgba(255, 122, 47, .08), transparent 40%),
    var(--ink-900);
  border-bottom: var(--bw-2) solid var(--ink-800);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 52px);
  align-items: start;
}

.page-contact .hero-progress {
  display: inline-block;
  margin: 0 0 14px;
  padding: 6px 12px;
  border: var(--bw-1) solid rgba(37, 225, 206, .5);
  background: rgba(37, 225, 206, .08);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 3.3rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .hero-lede {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.8;
  color: var(--paper-mid);
}

/* 三条联络通道 */
.page-contact .channel-list {
  display: grid;
  gap: 14px;
  margin: clamp(26px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 16px 18px 18px;
  border: var(--bw-1) solid var(--pc-hair);
  border-left: var(--bw-2) solid var(--cyan);
  background: var(--ink-800);
  transition: box-shadow .2s var(--ease-out), border-left-color .2s var(--ease-out);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-left-color: var(--orange);
  box-shadow: var(--pc-shadow);
}

.page-contact .channel__index {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-contact .channel__label {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--paper);
}

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-contact .channel__value:hover {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .channel__value--text {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(.95rem, 1.9vw, 1.1rem);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .channel__note {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--paper-mid);
}

/* 右栏面板 */
.page-contact .hero-panel {
  display: grid;
  min-width: 0;
  border: var(--bw-2) solid var(--steel);
  background: var(--ink-800);
  box-shadow: var(--pc-shadow);
}

.page-contact .hero-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-bottom: var(--bw-2) solid var(--steel);
  background: var(--ink-900);
}

.page-contact .hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  filter: saturate(.8) brightness(.86);
}

/* ---------- 分段控件 ---------- */
.page-contact .segmented {
  display: grid;
  min-width: 0;
}

.page-contact .segmented__tabs {
  display: flex;
  flex-wrap: wrap;
  border-bottom: var(--bw-2) solid var(--steel);
  background: var(--ink-900);
}

.page-contact .segmented__tab {
  flex: 1 1 46%;
  min-width: 0;
  min-height: 48px;
  padding: 13px 12px;
  appearance: none;
  border: 0;
  border-bottom: 1px solid var(--pc-hair);
  background: transparent;
  color: var(--paper-mid);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .875rem;
  line-height: 1.3;
  text-align: center;
  cursor: pointer;
  transition: background .16s var(--ease-out), color .16s var(--ease-out);
}

.page-contact .segmented__tab:hover {
  background: rgba(37, 225, 206, .09);
  color: var(--paper);
}

.page-contact .segmented__tab[aria-selected="true"] {
  background: var(--cyan);
  color: var(--ink-900);
}

.page-contact .segmented__tab:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: -3px;
}

.page-contact .segmented__panel {
  min-width: 0;
  min-height: 244px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-800);
}

.page-contact .segmented__panel[hidden] {
  display: none;
}

.page-contact .seg-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-contact .segmented__panel p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--paper-mid);
}

.page-contact .seg-panel__list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .seg-panel__list li {
  position: relative;
  padding-left: 16px;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--paper-mid);
}

.page-contact .seg-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-contact .seg-panel__list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-contact .seg-panel__foot {
  margin-top: 16px !important;
  padding-top: 12px;
  border-top: var(--bw-1) dashed var(--pc-hair);
  font-size: .875rem !important;
  color: var(--steel) !important;
}

/* ---------- 通用区块标题 ---------- */
.page-contact .section-head {
  max-width: 66ch;
}

.page-contact .section-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .section-eyebrow--green {
  color: #6FE0A4;
}

.page-contact .section-eyebrow--ink {
  color: var(--cyan-deep);
}

.page-contact .section-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.2vw, 2.05rem);
  line-height: 1.24;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-contact .section-lede {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--paper-mid);
}

/* ---------- 服务节奏数据带 ---------- */
.page-contact .rhythm-band {
  padding: clamp(38px, 5.5vw, 68px) 0;
  background: var(--ink-900);
  border-top: var(--bw-2) solid var(--ink-800);
}

.page-contact .rhythm-list {
  display: grid;
  gap: 1px;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--pc-hair);
  border: var(--bw-1) solid var(--pc-hair);
}

.page-contact .rhythm-list li {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 22px 20px 24px;
  background: var(--ink-800);
}

.page-contact .rhythm-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.1rem, 5.6vw, 3rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-contact .rhythm-num--long {
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
}

.page-contact .rhythm-num small {
  margin-left: 4px;
  font-size: .36em;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-contact .rhythm-key {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--paper);
}

.page-contact .rhythm-desc {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--paper-mid);
}

/* ---------- 提交步骤 ---------- */
.page-contact .flow-section {
  padding: clamp(38px, 5.5vw, 68px) 0;
  background: var(--ink-900);
  border-top: var(--bw-2) solid var(--ink-800);
}

.page-contact .step-track {
  display: grid;
  gap: 0;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .step {
  position: relative;
  padding: 0 0 clamp(28px, 3.8vw, 40px) 46px;
  min-width: 0;
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(37, 225, 206, .16);
}

.page-contact .step::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 28px;
  bottom: 4px;
  border-left: var(--bw-1) dashed var(--pc-hair);
}

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

.page-contact .step:last-child::after {
  display: none;
}

.page-contact .step__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-contact .step__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.0625rem, 2.2vw, 1.1875rem);
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .step__desc {
  margin: 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--paper-mid);
}

/* ---------- 青训合作 ---------- */
.page-contact .youth-block {
  padding: clamp(40px, 6vw, 76px) 0;
  background: var(--green-deep);
  border-top: var(--bw-2) solid #1E7A4C;
  border-bottom: var(--bw-2) solid #1E7A4C;
}

.page-contact .youth-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .youth-figure {
  margin: 0;
  overflow: hidden;
  border: var(--bw-2) solid #1E7A4C;
  background: var(--ink-900);
  box-shadow: 8px 8px 0 0 rgba(30, 122, 76, .38);
}

.page-contact .youth-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-contact .youth-lede {
  margin: 0 0 22px;
  font-size: .9375rem;
  line-height: 1.82;
  color: rgba(243, 237, 224, .82);
}

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

.page-contact .youth-mode {
  display: grid;
  gap: 5px;
  padding: 15px 16px;
  border: var(--bw-1) solid rgba(111, 224, 164, .34);
  border-left: var(--bw-2) solid #1E7A4C;
  background: rgba(2, 8, 16, .28);
  transition: border-left-color .2s var(--ease-out), background .2s var(--ease-out);
}

.page-contact .youth-mode:hover {
  border-left-color: var(--orange);
  background: rgba(2, 8, 16, .45);
}

.page-contact .youth-mode__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--paper);
}

.page-contact .youth-mode__desc {
  font-size: .875rem;
  line-height: 1.72;
  color: rgba(243, 237, 224, .78);
}

.page-contact .youth-foot {
  margin: 22px 0 0;
  font-size: .875rem;
  line-height: 1.75;
  color: rgba(243, 237, 224, .74);
}

.page-contact .youth-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  word-break: break-word;
}

.page-contact .youth-foot a:hover {
  color: var(--orange);
}

/* ---------- 来信之前（暖纸白） ---------- */
.page-contact .pre-send {
  padding: clamp(40px, 6vw, 76px) 0;
  background: var(--paper);
  color: var(--black);
}

.page-contact .pre-send .section-title {
  color: var(--black);
}

.page-contact .pre-send .section-eyebrow--ink {
  color: var(--cyan-deep);
}

.page-contact .pre-send__lede {
  max-width: 62ch;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(10, 16, 22, .78);
}

.page-contact .pre-links {
  display: grid;
  gap: 12px;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pre-links li {
  min-width: 0;
}

.page-contact .pre-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 56px;
  padding: 13px 16px;
  border: var(--bw-1) solid var(--rule);
  border-left: var(--bw-2) solid var(--green);
  background: #FFFDF8;
  color: var(--black);
  text-decoration: none;
  box-shadow: 4px 4px 0 0 rgba(10, 16, 22, .1);
  transition: box-shadow .2s var(--ease-out), border-left-color .2s var(--ease-out);
}

.page-contact .pre-link:hover {
  border-left-color: var(--orange);
  box-shadow: 8px 8px 0 0 rgba(10, 16, 22, .2);
}

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

.page-contact .pre-link__text {
  min-width: 0;
  font-size: .875rem;
  line-height: 1.6;
  color: rgba(10, 16, 22, .76);
}

.page-contact .pre-link__text strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--black);
}

.page-contact .pre-link__arrow {
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--green);
}

.page-contact .pre-link:hover .pre-link__arrow {
  color: var(--orange);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

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

  .page-contact .segmented__tab {
    flex: 1 1 auto;
    border-bottom: 0;
    border-right: 1px solid var(--pc-hair);
    font-size: .9375rem;
  }

  .page-contact .segmented__tab:last-child {
    border-right: 0;
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .channel-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .youth-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }

  .page-contact .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 40px);
  }

  .page-contact .step {
    padding: 0 clamp(12px, 2vw, 24px) 0 0;
    border-left: 0;
  }

  .page-contact .step::before {
    position: static;
    display: block;
    margin-bottom: 14px;
  }

  .page-contact .step::after {
    left: 32px;
    top: 7px;
    bottom: auto;
    width: calc(100% - 8px);
    border-left: 0;
    border-top: var(--bw-1) dashed var(--pc-hair);
  }

  .page-contact .step:last-child::after {
    display: none;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .segmented__tab,
  .page-contact .pre-link,
  .page-contact .youth-mode {
    transition-duration: .01ms;
  }
}
</main>