.page-contact {
  --pc-amber-soft: rgba(255, 180, 58, .18);
  --pc-cyan-soft: rgba(59, 224, 209, .16);
}

.page-contact [data-section] {
  scroll-margin-top: 150px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(16px, 3vw, 32px) 0 clamp(36px, 6vw, 78px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 4vw, 60px);
}

.page-contact .contact-hero__lead .eyebrow {
  display: block;
  margin: 0 0 12px;
  color: var(--cyan-400);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--paper-000);
}

.page-contact .contact-hero .lede {
  margin: 0 0 clamp(26px, 4vw, 42px);
  max-width: 48ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--paper-400);
}

/* 渠道大字块 */
.page-contact .channels {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel {
  border-top: 1px solid var(--line-600);
  padding: clamp(14px, 2vw, 20px) 0;
}

.page-contact .channel:last-child {
  border-bottom: 1px solid var(--line-600);
}

.page-contact .channel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .channel__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--paper-400);
}

.page-contact .channel__value {
  display: block;
  margin-top: 8px;
  font-size: clamp(17px, 4.2vw, 34px);
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.3;
  color: var(--paper-000);
  overflow-wrap: anywhere;
}

/* 地址行 */
.page-contact .addr-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: clamp(20px, 3vw, 30px);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-800);
  box-shadow: inset 3px 0 0 0 var(--amber-400);
}

.page-contact .addr-line__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber-400);
  box-shadow: 0 0 0 4px var(--pc-amber-soft);
}

.page-contact .addr-line__text {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-000);
  overflow-wrap: anywhere;
}

.page-contact .stamp {
  margin-top: 18px;
}

/* 复制按钮 */
.page-contact .copy-btn {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-400);
  background: transparent;
  border: 1px solid var(--line-600);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  cursor: pointer;
  transition: color 200ms var(--ease), background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible,
.page-contact .copy-btn.is-copied {
  color: var(--void-000);
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* 图片容器 */
.page-contact .figure {
  margin: 0;
}

.page-contact .figure__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-contact .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

/* ---------- 正文骨架 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 64px);
  padding-bottom: clamp(60px, 10vw, 140px);
}

/* 侧边锚点：窄屏为横向胶囊条 */
.page-contact .contact-anchors {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-contact .contact-anchors::-webkit-scrollbar {
  display: none;
}

.page-contact .contact-anchors .anchors__link {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  white-space: nowrap;
  padding: 9px 15px;
  border: 1px solid var(--line-600);
  border-radius: var(--radius-pill);
  color: var(--paper-400);
  text-decoration: none;
  transition: color 200ms var(--ease), background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .contact-anchors .anchors__link:hover,
.page-contact .contact-anchors .anchors__link:focus-visible {
  color: var(--paper-000);
  border-color: var(--paper-400);
}

.page-contact .contact-anchors .anchors__link.is-active {
  color: var(--void-000);
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* 章节 */
.page-contact .csection {
  border-top: 1px solid var(--line-600);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-contact .csection + .csection {
  margin-top: clamp(44px, 7vw, 88px);
}

.page-contact .csection__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(14px, 2.2vw, 24px);
}

.page-contact .csection__head .index {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan-400);
}

.page-contact .csection h2 {
  margin: 0;
  font-size: clamp(23px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--paper-000);
}

.page-contact .csection .lede {
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--paper-400);
}

.page-contact .csection p {
  color: var(--paper-400);
  line-height: 1.8;
}

/* 三项信息 */
.page-contact .req-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .req {
  padding: 20px 0;
  border-top: 1px solid var(--line-600);
  display: grid;
  gap: 8px;
}

.page-contact .req:last-child {
  border-bottom: 1px solid var(--line-600);
}

.page-contact .req__key {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber-400);
}

.page-contact .req p {
  margin: 0;
  font-size: 16px;
}

/* 联系场景 */
.page-contact .scene-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-600);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .scene {
  background: var(--ink-800);
  padding: clamp(20px, 2.6vw, 30px);
}

.page-contact .scene__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper-000);
}

.page-contact .scene p {
  margin: 0;
  font-size: 15px;
  color: var(--paper-400);
}

.page-contact .scene-note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 62ch;
  font-size: 15px;
}

/* 订阅 */
.page-contact .subscribe {
  padding: clamp(22px, 3vw, 36px);
  background: var(--ink-800);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px var(--line-600);
}

.page-contact .subscribe__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
}

.page-contact .subscribe__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-contact .subscribe__input {
  flex: 1 1 240px;
  min-width: 0;
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper-000);
  background: var(--void-000);
  border: 1px solid var(--line-600);
  border-radius: var(--radius-pill);
  outline: none;
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-contact .subscribe__input::placeholder {
  color: var(--slate-500);
}

.page-contact .subscribe__input:focus {
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 3px var(--pc-cyan-soft);
}

.page-contact .subscribe__input:invalid:not(:placeholder-shown) {
  border-color: var(--amber-400);
}

.page-contact .subscribe__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

.page-contact .subscribe__hint--warn {
  display: none;
  color: var(--amber-400);
}

.page-contact .subscribe:has(.subscribe__input:invalid:not(:placeholder-shown)) .subscribe__hint--warn {
  display: block;
}

.page-contact .subscribe:has(.subscribe__input:invalid:not(:placeholder-shown)) .subscribe__hint--ok {
  display: none;
}

/* 本地服务 */
.page-contact .contact-local__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 46px);
}

.page-contact .contact-local__text .lede {
  margin-bottom: 16px;
}

.page-contact .contact-local__text p {
  margin: 0;
  font-size: 15px;
  max-width: 56ch;
}

/* 处理顺序 */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .flow li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line-600);
}

.page-contact .flow li:last-child {
  border-bottom: 1px solid var(--line-600);
}

.page-contact .flow__no {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan-400);
  padding-top: 5px;
}

.page-contact .flow p {
  margin: 0;
  font-size: 15px;
}

/* 快捷入口 */
.page-contact .quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .quick-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-600);
  color: var(--paper-000);
  text-decoration: none;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-contact .quick-link:hover,
.page-contact .quick-link:focus-visible {
  color: var(--void-000);
  background: var(--amber-400);
  border-color: var(--amber-400);
}

/* 备案信息 */
.page-contact .identity {
  display: grid;
  gap: 1px;
  background: var(--line-600);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .identity__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 16px 20px;
  background: var(--ink-800);
}

.page-contact .identity__key {
  flex: none;
  min-width: 92px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper-400);
}

.page-contact .identity__val {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  color: var(--paper-000);
  overflow-wrap: anywhere;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-contact .req {
    grid-template-columns: 168px 1fr;
    align-items: baseline;
    gap: 20px;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .contact-hero__figure {
    margin-top: 8px;
  }

  .page-contact .contact-body {
    grid-template-columns: 2fr 8fr;
    align-items: start;
  }

  .page-contact .contact-anchors {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-contact .contact-anchors .anchors__link {
    white-space: normal;
    width: 100%;
  }

  .page-contact .contact-local__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .anchors__link,
  .page-contact .quick-link,
  .page-contact .subscribe__input {
    transition: none;
  }
}