/* ===== 联系我们 ===== */
.page-contact {
  position: relative;
  padding-bottom: clamp(56px, 8vw, 120px);
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding-top: calc(var(--header-h) + 18px);
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--text-idx);
}

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

.page-contact .breadcrumb__link {
  color: var(--text-idx);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link[aria-current="page"] {
  color: var(--cyan);
}

/* 首屏 */
.page-contact .contact-hero {
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 20px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  max-width: 18ch;
  font-size: var(--display);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-hi);
}

.page-contact .contact-hero__title span {
  color: var(--orange);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--text-body);
}

/* 渠道色带 */
.page-contact .contact-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(32px, 5vw, 56px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .contact-band__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink-900);
  color: inherit;
  text-decoration: none;
  transition: background var(--dur) var(--ease);
}

.page-contact .contact-band__cell::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 3px;
  background: var(--cyan);
}

.page-contact .contact-band__cell--tel::before {
  background: var(--orange);
}

.page-contact .contact-band__cell--time::before {
  background: var(--lime);
}

.page-contact a.contact-band__cell:hover {
  background: var(--ink-800);
}

.page-contact a.contact-band__cell:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -3px;
}

.page-contact .contact-band__k {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-idx);
}

.page-contact .contact-band__v {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-hi);
  overflow-wrap: anywhere;
}

.page-contact .contact-band__n {
  font-size: var(--fs-15);
  line-height: 1.65;
  color: var(--text-body);
}

.page-contact .contact-band__cell--link .contact-band__v {
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.page-contact .contact-band__cell--link:hover .contact-band__v {
  color: var(--orange);
}

/* 通用标题样式（页内节奏） */
.page-contact .index {
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .section__title {
  margin: 0 0 16px;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-contact .section__lead {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--text-body);
}

.page-contact .section__head {
  margin-bottom: clamp(28px, 4vw, 46px);
}

/* 双栏主体 */
.page-contact .contact-split {
  padding-block: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-split__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 48px);
}

.page-contact .contact-side {
  align-self: start;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(74, 46, 143, 0.34) 0%, rgba(18, 26, 62, 0.92) 54%, rgba(10, 16, 41, 0.96) 100%);
}

.page-contact .contact-side__label {
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-side__title {
  margin: 0 0 26px;
  font-size: clamp(22px, 2.2vw, 27px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-contact .contact-facts {
  margin: 0;
}

.page-contact .contact-facts__row {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .contact-facts__k {
  margin: 0 0 8px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-idx);
}

.page-contact .contact-facts__v {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--text-body);
  overflow-wrap: anywhere;
}

.page-contact .contact-facts__link {
  color: var(--text-hi);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
  transition: color var(--dur) var(--ease);
}

.page-contact .contact-facts__link:hover {
  color: var(--orange);
}

/* 留言要点 */
.page-contact .contact-brief .section__lead {
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .contact-brief__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
}

.page-contact .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist__item {
  border-top: 1px solid var(--line);
}

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

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 20px 0;
  cursor: pointer;
}

.page-contact .checklist__input {
  -webkit-appearance: none;
  appearance: none;
  flex: 0 0 auto;
  position: relative;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist__input:checked {
  border-color: var(--lime);
  background: rgba(180, 255, 69, 0.12);
}

.page-contact .checklist__input:checked::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--lime);
}

.page-contact .checklist__input:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .checklist__num {
  flex: 0 0 auto;
  padding-top: 5px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .checklist__text {
  font-size: var(--fs-16);
  line-height: 1.72;
  color: var(--text-body);
}

.page-contact .checklist__text strong {
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-16);
  font-weight: 600;
  color: var(--text-hi);
}

.page-contact .contact-brief__figure {
  margin: 0;
  max-width: 520px;
}

/* 图片容器补充 */
.page-contact .media-frame {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .media-frame__inner {
  display: block;
}

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

.page-contact .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-idx);
}

/* 回复节奏 */
.page-contact .contact-when {
  padding-block: clamp(52px, 7vw, 100px);
  background: var(--ink-800);
}

.page-contact .contact-when__head {
  max-width: 760px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .contact-when__fig {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-contact .contact-when__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .contact-when__item {
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-900);
}

.page-contact .contact-when__tag {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-contact .contact-when__text {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.72;
  color: var(--text-body);
}

/* 渠道分工 */
.page-contact .contact-channels {
  padding-block: clamp(52px, 7vw, 100px);
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
}

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

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 44px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .channel:nth-child(2)::before {
  background: var(--orange);
}

.page-contact .channel:nth-child(3)::before {
  background: var(--lime);
}

.page-contact .channel__no {
  margin: 0 0 16px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.14em;
  color: var(--text-idx);
}

.page-contact .channel__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 1.8vw, 22px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-contact .channel__text {
  margin: 0 0 18px;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--text-body);
}

.page-contact .channel .link-more {
  color: var(--cyan);
}

/* 站点信息 */
.page-contact .contact-site {
  padding-block: clamp(52px, 7vw, 100px);
}

.page-contact .contact-site__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  padding: clamp(26px, 4vw, 52px);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(34, 224, 210, 0.08) 0%, rgba(10, 16, 41, 0) 46%),
    var(--ink-800);
}

.page-contact .contact-site__note {
  margin: 22px 0 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--text-idx);
}

.page-contact .contact-site__note a {
  color: var(--text-body);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 4px;
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}

.page-contact .contact-site__note a:hover {
  color: var(--cyan);
  text-decoration-color: var(--cyan);
}

.page-contact .site-facts {
  margin: 0;
}

.page-contact .site-facts__row {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .site-facts__k {
  margin: 0 0 8px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .site-facts__v {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.72;
  color: var(--text-hi);
  overflow-wrap: anywhere;
}

/* 媒体查询 */
@media (min-width: 720px) {
  .page-contact .contact-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-site__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-split__grid {
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-brief__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
  }

  .page-contact .contact-brief__figure {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}