.page-contact {
  --contact-gap: clamp(20px, 3vw, 40px);
  background: var(--bg);
  color: var(--fg);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  padding-top: var(--sp-3);
  padding-bottom: var(--sp-5);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .contact-hero__lead h1 {
  max-width: 20ch;
  color: var(--fg-strong);
  margin-bottom: var(--sp-3);
}

.page-contact .contact-hero__lead .yt-lede {
  max-width: 56ch;
}

.page-contact .contact-hero__panel {
  border: var(--bd-strong);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  align-self: start;
}

.page-contact .contact-hero__panel-label {
  font-family: var(--font-index);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0;
}

.page-contact .contact-hero__panel-note {
  margin: 0;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--fg-muted);
  border-top: 1px dashed var(--edge);
  padding-top: var(--sp-2);
}

.page-contact .contact-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--edge);
  background: rgba(77, 255, 224, .08);
  color: var(--accent);
  font-family: var(--font-index);
  font-size: .8rem;
  letter-spacing: .04em;
  padding: 8px 12px;
  align-self: flex-start;
}

.page-contact .contact-status--warm {
  background: rgba(255, 138, 61, .1);
  border-color: rgba(255, 138, 61, .45);
  color: var(--action);
}

.page-contact .contact-status__dot {
  width: 8px;
  height: 8px;
  background: currentColor;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(77, 255, 224, .18);
  flex: none;
}

/* ---------- 双栏骨架 ---------- */
.page-contact .contact-body {
  padding-top: 0;
  padding-bottom: var(--sp-6);
}

.page-contact .contact-layout {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .contact-col {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  min-width: 0;
}

.page-contact .contact-intro {
  margin: 0;
  max-width: 46ch;
  font-size: .95rem;
  color: var(--fg-muted);
}

/* ---------- 左栏：渠道卡片 ---------- */
.page-contact .contact-channels-head {
  border-top: var(--bd-strong);
  padding-top: var(--sp-3);
}

.page-contact .contact-channel {
  position: relative;
  background: var(--paper);
  color: var(--ink-900);
  border: var(--bd-strong);
  box-shadow: var(--shadow-hard);
  padding: var(--sp-3);
  display: grid;
  gap: 6px;
  justify-items: start;
}

.page-contact .contact-channel::after {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: 46px;
  height: 6px;
  background: var(--action);
}

.page-contact .contact-channel__key {
  margin: 0;
  font-family: var(--font-index);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--edge);
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(1rem, 4.2vw, 1.3rem);
  line-height: 1.35;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__value--addr {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
}

.page-contact .contact-channel__use {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: #2c4a41;
}

.page-contact .contact-copy {
  border-color: var(--edge);
  color: var(--edge);
  margin-top: 4px;
}

.page-contact .contact-copy:hover,
.page-contact .contact-copy:focus-visible {
  background: var(--ink-900);
  color: var(--accent);
  border-color: var(--ink-900);
}

/* ---------- 左栏：媒体与地图纹理 ---------- */
.page-contact .contact-media {
  margin: 0;
}

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

.page-contact .contact-map {
  position: relative;
  border: var(--bd);
  background:
    linear-gradient(150deg, rgba(13, 31, 26, .96), rgba(16, 19, 18, .98));
  padding: var(--sp-2);
  overflow: hidden;
}

.page-contact .contact-map__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .contact-map__svg path {
  fill: none;
  stroke: var(--edge);
  stroke-width: 1;
}

.page-contact .contact-map__svg .contact-map__route {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  opacity: .85;
}

.page-contact .contact-map__svg .contact-map__route--warm {
  stroke: var(--action);
  opacity: .7;
}

.page-contact .contact-map__node {
  fill: var(--accent);
}

.page-contact .contact-map__node--warm {
  fill: var(--action);
}

.page-contact .contact-map__label {
  margin: var(--sp-2) 0 0;
  font-family: var(--font-index);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--fg-muted);
}

/* ---------- 右栏：内容块 ---------- */
.page-contact .contact-block {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  border-top: var(--bd-strong);
  padding-top: var(--sp-3);
}

.page-contact .contact-block:first-child {
  border-top-color: var(--accent);
}

.page-contact .contact-block p {
  margin: 0;
  line-height: 1.75;
  max-width: 62ch;
}

/* 合作需求清单（表格式填写指引） */
.page-contact .contact-sheet {
  border: var(--bd-strong);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-contact .contact-sheet__row {
  display: grid;
  gap: 4px;
  padding: var(--sp-3);
  border-bottom: 1px dashed var(--edge);
}

.page-contact .contact-sheet__row:last-child {
  border-bottom: 0;
}

.page-contact .contact-sheet__row--flag {
  background: linear-gradient(90deg, rgba(77, 255, 224, .14), rgba(77, 255, 224, 0) 78%);
  border-left: 4px solid var(--accent);
}

.page-contact .contact-sheet__key {
  margin: 0;
  font-family: var(--font-index);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--accent);
}

.page-contact .contact-sheet__row--flag .contact-sheet__key {
  color: var(--fg-strong);
}

.page-contact .contact-sheet__val {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--fg);
}

.page-contact .contact-note {
  font-size: .9rem;
  color: var(--fg-muted);
}

.page-contact .contact-note .yt-link-more {
  margin-left: 4px;
}

/* 纠错步骤 */
.page-contact .contact-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
  counter-reset: none;
}

.page-contact .contact-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-2);
  align-items: start;
  border-left: 3px solid var(--edge);
  background: rgba(31, 59, 51, .35);
  padding: var(--sp-2) var(--sp-3);
}

.page-contact .contact-step__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--action);
  line-height: 1.4;
}

.page-contact .contact-step__title {
  margin: 0;
  font-weight: 600;
  color: var(--fg-strong);
}

.page-contact .contact-step__text {
  margin: 2px 0 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* 区域专题 */
.page-contact .contact-topics {
  display: grid;
  gap: var(--sp-2);
}

.page-contact .contact-topic {
  border: var(--bd);
  background: var(--ink-800);
  padding: var(--sp-3);
  display: grid;
  gap: 6px;
  border-top-width: 5px;
  min-width: 0;
}

.page-contact .contact-topic--cyan {
  border-top-color: var(--accent);
}

.page-contact .contact-topic--orange {
  border-top-color: var(--action);
}

.page-contact .contact-topic--amber {
  border-top-color: var(--amber);
}

.page-contact .contact-topic__tag {
  margin: 0;
  font-family: var(--font-index);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--fg-muted);
}

.page-contact .contact-topic__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: .02em;
  color: var(--fg-strong);
}

.page-contact .contact-topic__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* 响应说明表格 */
.page-contact .contact-table-wrap {
  overflow-x: auto;
  border: var(--bd-strong);
  background: var(--paper);
}

.page-contact .contact-table-wrap .yt-table {
  width: 100%;
  min-width: 480px;
  margin: 0;
}

/* 延伸链接 */
.page-contact .contact-links {
  border: var(--bd-strong);
  background: linear-gradient(135deg, rgba(77, 255, 224, .1), rgba(255, 138, 61, .1));
  padding: var(--sp-3);
}

.page-contact .contact-links__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--fg-strong);
}

.page-contact .contact-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-links__item {
  display: block;
  font-family: var(--font-index);
  font-size: .86rem;
  letter-spacing: .02em;
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px dashed var(--edge);
  padding: 8px 0;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

.page-contact .contact-links__item::before {
  content: "→ ";
  color: var(--action);
}

.page-contact .contact-links__item:hover,
.page-contact .contact-links__item:focus-visible {
  color: var(--accent);
  padding-left: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-sheet__row {
    grid-template-columns: minmax(120px, 160px) 1fr;
    align-items: baseline;
    gap: var(--sp-3);
  }

  .page-contact .contact-links__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--sp-3);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: var(--sp-5);
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .contact-col--left {
    position: sticky;
    top: var(--sp-4);
  }

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

@media (min-width: 1180px) {
  .page-contact .contact-hero__panel {
    padding: var(--sp-4);
  }

  .page-contact .contact-channel {
    padding: var(--sp-4) var(--sp-3);
  }
}

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

  .page-contact .contact-links__item:hover {
    padding-left: 0;
  }
}