.page-contact {
  --contact-rail: 340px;
  scroll-behavior: smooth;
}

.page-contact .breadcrumbs {
  padding-top: 32px;
  padding-bottom: 4px;
  font-size: var(--fs-14);
  color: var(--mute);
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid);
}

.page-contact .breadcrumbs a {
  color: var(--mute);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--gold-light);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: 40px;
  padding-bottom: 32px;
}

.page-contact .section__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .contact-hero__title {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 60px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--paper-shade);
}

.page-contact .contact-banner {
  margin-top: 8px;
  margin-bottom: 0;
}

.page-contact .contact-banner .image-frame__media {
  display: block;
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
}

/* ---------- 分区标题 ---------- */

.page-contact .section__head {
  max-width: 68ch;
}

.page-contact .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .section__lead {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .section__lead a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .section__lead a:hover,
.page-contact .section__lead a:focus-visible {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 左右分栏 ---------- */

.page-contact .contact-split {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.page-contact .contact-split__rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-contact .contact-split__main {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}

/* ---------- 筛选按钮 ---------- */

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

.page-contact .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--grid);
  border-radius: 0;
  background: transparent;
  color: var(--paper-shade);
  font-family: var(--font-body);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-contact .filter-btn:hover,
.page-contact .filter-btn:focus-visible {
  border-color: var(--gold);
  color: var(--gold-light);
  outline: none;
}

.page-contact .filter-btn:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-contact .filter-btn.is-active,
.page-contact .filter-btn[aria-pressed="true"] {
  border-color: var(--violet);
  background: rgba(123, 77, 255, 0.14);
  color: var(--paper);
}

.page-contact .filter-btn__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--mute);
}

.page-contact .empty-note {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed var(--grid);
  font-size: var(--fs-14);
  color: var(--mute);
}

/* ---------- 渠道卡片 ---------- */

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px;
  background: var(--ink-raised);
  border: 1px solid rgba(201, 162, 74, 0.42);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--violet);
  background: #16243F;
}

.page-contact .channel-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .channel-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .channel-card__head .dot {
  margin-left: auto;
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--gold-light);
  word-break: break-word;
}

.page-contact .channel-card__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--paper-shade);
}

.page-contact .channel-card__meta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  margin: 0;
  font-size: var(--fs-12);
  line-height: 1.6;
}

.page-contact .channel-card__meta dt {
  color: var(--mute);
  letter-spacing: 0.04em;
}

.page-contact .channel-card__meta dd {
  margin: 0;
  color: var(--paper-shade);
}

.page-contact .channel-card .copy-btn {
  align-self: flex-start;
  margin-top: 2px;
  border-radius: 0;
}

/* ---------- 右侧操作指引 ---------- */

.page-contact .contact-main__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .contact-main__lead {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--paper-shade);
}

.page-contact .step-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-contact .step-list__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .step-list__item .badge {
  align-self: start;
}

.page-contact .step-list__body {
  min-width: 0;
}

.page-contact .step-list__body h4 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  font-weight: 600;
  color: var(--paper);
}

.page-contact .step-list__body p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .step-list__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, 0.4);
}

.page-contact .step-list__body a:hover,
.page-contact .step-list__body a:focus-visible {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 资料清单 ---------- */

.page-contact .need-list {
  padding: 20px 18px;
  background: var(--ink-raised);
  border-left: 2px solid var(--cyan);
}

.page-contact .need-list__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .need-list ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .need-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--paper-shade);
}

.page-contact .need-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-contact .contact-aside-figure {
  margin: 0;
}

.page-contact .contact-aside-figure .image-frame__media {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 时效面板 ---------- */

.page-contact .sla-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .sla-item {
  padding: 22px 16px;
  background: var(--ink);
}

.page-contact .sla-item__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  line-height: 1.15;
  color: var(--gold);
}

.page-contact .sla-item__num small {
  margin-left: 4px;
  font-size: var(--fs-14);
  color: var(--paper-shade);
}

.page-contact .sla-item__label {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 合作卡片 ---------- */

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

.page-contact .partner-card {
  padding: 22px 18px;
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.09), rgba(10, 18, 32, 0) 62%);
  border: 1px solid var(--grid);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .partner-card:hover {
  border-color: var(--gold);
}

.page-contact .partner-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .partner-card__text {
  margin: 0 0 14px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--paper-shade);
}

.page-contact .partner-card__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
  padding-top: 14px;
}

.page-contact .partner-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mute);
}

.page-contact .partner-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

/* ---------- 底部备案通栏 ---------- */

.page-contact .legal-strip {
  margin-top: 72px;
  padding: 34px 0;
  background: var(--ink-raised);
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--grid);
}

.page-contact .legal-strip__inner {
  display: grid;
  gap: 20px;
}

.page-contact .legal-strip__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .legal-strip__list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-contact .legal-strip__list > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-contact .legal-strip__list dt {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-contact .legal-strip__list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .legal-strip__links {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .legal-strip__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, 0.4);
}

.page-contact .legal-strip__links a:hover,
.page-contact .legal-strip__links a:focus-visible {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .legal-strip__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 36px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, var(--contact-rail)) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .contact-hero {
    padding-top: 56px;
    padding-bottom: 40px;
  }

  .page-contact .legal-strip__inner {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-contact .legal-strip__label {
    padding-top: 2px;
  }
}

@media (min-width: 1240px) {
  .page-contact {
    --contact-rail: 360px;
  }
}