.page-contact {
  --ct-hair: rgba(140, 147, 166, .3);
  --ct-gold-soft: rgba(227, 178, 60, .45);
  --ct-crimson-soft: rgba(217, 58, 43, .38);
  --ct-ink-line: rgba(27, 42, 85, .18);
  color: var(--paper);
  background-color: var(--ink-deep);
  padding-bottom: clamp(56px, 9vw, 120px);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-contact h1 {
  font-size: var(--t-28);
  line-height: 1.14;
  margin: 14px 0 0;
  color: var(--paper);
}

.page-contact h2 {
  font-size: clamp(var(--t-28), 4.2vw, var(--t-44));
  line-height: 1.2;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-contact h3 {
  font-size: var(--t-20);
  line-height: 1.4;
  margin: 8px 0 0;
  color: var(--paper);
}

.page-contact .kicker {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}

.page-contact .kicker--dark {
  color: var(--clay);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .05em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--barley);
  border-bottom-color: var(--ct-gold-soft);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--barley);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-block: clamp(20px, 4vw, 34px) clamp(30px, 5vw, 56px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-hero__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: var(--t-18);
  line-height: 1.85;
  color: var(--paper);
  max-width: 34em;
}

.page-contact .contact-hero__mail {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 12px 0 12px 16px;
  border-left: 3px solid var(--crimson);
}

.page-contact .contact-hero__mail-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .contact-hero__mail-addr {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: clamp(var(--t-18), 2.8vw, var(--t-28));
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--barley);
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .contact-hero__mail-tip {
  display: block;
  margin-top: 8px;
  font-size: var(--t-13);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-hero__visual {
  position: relative;
}

.page-contact .contact-hero__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ct-gold-soft);
  background-image: linear-gradient(150deg, rgba(23, 163, 152, .16), rgba(27, 42, 85, .5) 46%, rgba(180, 89, 59, .18));
}

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

.page-contact .contact-hero__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .22em;
  color: var(--gold);
}

/* ---------- 通道与写法 ---------- */

.page-contact .contact-desk {
  padding-block: clamp(10px, 2vw, 18px) clamp(36px, 5vw, 64px);
}

.page-contact .desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4.4vw, 52px);
  align-items: start;
}

.page-contact .channel-list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  padding: 16px 18px 16px 20px;
  background-image: linear-gradient(180deg, rgba(27, 42, 85, .94), rgba(27, 42, 85, .62));
  border: 1px solid var(--ct-hair);
  border-left: 3px solid var(--rock);
  transition: transform .16s var(--ease), border-color .16s var(--ease), box-shadow .16s var(--ease);
}

.page-contact .channel--primary {
  border-left-color: var(--crimson);
}

.page-contact .channel:hover {
  transform: translateY(-4px);
  border-color: var(--ct-gold-soft);
  box-shadow: 0 20px 34px -26px rgba(0, 0, 0, .95);
}

.page-contact .channel--primary:hover {
  border-left-color: var(--crimson);
}

.page-contact .channel__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .14em;
  color: var(--barley);
}

.page-contact .channel h3 {
  margin-top: 6px;
  word-break: break-word;
}

.page-contact .channel--primary h3 {
  color: var(--paper);
}

.page-contact .channel p {
  margin: 8px 0 0;
  font-size: var(--t-16);
  line-height: 1.8;
  color: var(--mist);
  transition: color .16s var(--ease);
}

.page-contact .channel:hover p {
  color: rgba(245, 238, 226, .94);
}

.page-contact .channel .channel__meta {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .04em;
  color: var(--turquoise);
}

/* ---------- 纸面模板卡 ---------- */

.page-contact .desk__main {
  display: grid;
  gap: clamp(30px, 4vw, 46px);
  padding-bottom: clamp(0px, 5vw, 64px);
}

.page-contact .sheet {
  position: relative;
  padding: 0 12px 12px 0;
}

.page-contact .sheet::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  right: 0;
  bottom: 0;
  border: 1px solid var(--ct-gold-soft);
  pointer-events: none;
}

.page-contact .sheet__card {
  position: relative;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(0deg, rgba(140, 147, 166, .09) 0 1px, transparent 1px 6px);
  color: var(--ink-deep);
  padding: clamp(20px, 3.2vw, 34px);
  box-shadow: 0 28px 52px -34px rgba(0, 0, 0, .95);
}

.page-contact .sheet__card h2 {
  color: var(--ink-deep);
}

.page-contact .mailkit__lead {
  margin: 12px 0 0;
  font-size: var(--t-16);
  line-height: 1.85;
  color: rgba(16, 27, 59, .82);
}

.page-contact .mailkit__steps {
  list-style: none;
  counter-reset: kit;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .mailkit__steps li {
  position: relative;
  padding-left: 36px;
  font-size: var(--t-16);
  line-height: 1.85;
  color: rgba(16, 27, 59, .88);
}

.page-contact .mailkit__steps li::before {
  counter-increment: kit;
  content: "0" counter(kit);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  color: var(--crimson);
  border: 1px solid var(--ct-crimson-soft);
  border-radius: 50%;
}

.page-contact .mailkit__steps strong {
  font-weight: 700;
  color: var(--ink-deep);
  border-bottom: 1px solid rgba(227, 178, 60, .7);
}

.page-contact .mailkit__sample {
  margin: 22px 0 0;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: var(--t-13);
  line-height: 1.95;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink-deep);
  background: rgba(27, 42, 85, .07);
  border-left: 2px solid var(--clay);
  overflow-x: auto;
}

.page-contact .mailkit__hint {
  margin: 12px 0 0;
  font-size: var(--t-13);
  line-height: 1.8;
  color: rgba(16, 27, 59, .7);
}

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

.page-contact .kit-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ct-hair);
  background-image: linear-gradient(120deg, rgba(27, 42, 85, .8), rgba(23, 163, 152, .12));
}

.page-contact .kit-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  line-height: 1.8;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 时效刻度 ---------- */

.page-contact .speed__lead {
  margin: 14px 0 0;
  font-size: var(--t-16);
  line-height: 1.85;
  color: var(--mist);
  max-width: 40em;
}

.page-contact .speed__scale {
  margin-top: clamp(24px, 3.4vw, 34px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(140, 147, 166, .5);
}

.page-contact .speed__mark {
  position: relative;
  padding: 18px 8px 0 0;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .speed__mark::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--rock);
}

.page-contact .speed__mark--last {
  color: var(--barley);
}

.page-contact .speed__mark--last::before {
  background: var(--crimson);
  box-shadow: 0 0 0 4px rgba(217, 58, 43, .18);
}

/* ---------- 加急卡 ---------- */

.page-contact .urgent {
  margin: clamp(30px, 4vw, 44px) 0 0;
  padding: 20px 22px 22px;
  border: 1px solid rgba(217, 58, 43, .5);
  border-left-width: 4px;
  background-image: linear-gradient(155deg, rgba(217, 58, 43, .2), rgba(27, 42, 85, .9) 68%);
  box-shadow: 0 24px 44px -32px rgba(0, 0, 0, .95);
}

.page-contact .urgent__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .18em;
  color: var(--barley);
}

.page-contact .urgent h3 {
  margin-top: 8px;
  color: var(--paper);
}

.page-contact .urgent p {
  margin: 10px 0 0;
  font-size: var(--t-16);
  line-height: 1.85;
  color: rgba(245, 238, 226, .84);
}

.page-contact .urgent .urgent__note {
  font-family: var(--font-mono);
  font-size: var(--t-13);
  letter-spacing: .02em;
  color: var(--turquoise);
}

/* ---------- 自助入口 ---------- */

.page-contact .contact-help {
  padding-block: clamp(30px, 4vw, 48px);
}

.page-contact .help {
  border-top: 1px solid var(--ct-hair);
  padding-top: clamp(24px, 3.4vw, 38px);
}

.page-contact .help__head p {
  margin: 12px 0 0;
  font-size: var(--t-16);
  line-height: 1.85;
  color: var(--mist);
  max-width: 44em;
}

.page-contact .help__list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .help__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 14px;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--ct-hair);
  background-image: linear-gradient(90deg, rgba(27, 42, 85, .8), rgba(16, 27, 59, .35));
  transition: transform .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .help__list a:hover {
  transform: translateY(-3px);
  border-color: var(--ct-gold-soft);
}

.page-contact .help__num {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  color: var(--gold);
  letter-spacing: .1em;
}

.page-contact .help__title {
  font-family: var(--font-display);
  font-size: var(--t-18);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .help__desc {
  grid-column: 2;
  font-size: var(--t-13);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 站点身份 ---------- */

.page-contact .contact-site {
  padding-block: clamp(26px, 4vw, 44px) 0;
}

.page-contact .site-panel {
  display: grid;
  gap: clamp(26px, 3.6vw, 42px);
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--ct-hair);
  border-top: 2px solid var(--gold);
  background-image: linear-gradient(180deg, rgba(27, 42, 85, .88), rgba(16, 27, 59, .55));
}

.page-contact .site-panel__head p {
  margin: 12px 0 0;
  font-size: var(--t-16);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .site-facts {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--ct-hair);
}

.page-contact .site-facts > div {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .site-facts dt {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: .12em;
  color: var(--gold);
}

.page-contact .site-facts dd {
  margin: 0;
  font-size: var(--t-16);
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-contact h1 {
    font-size: var(--t-44);
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .contact-hero__visual {
    padding-right: 28px;
  }

  .page-contact .contact-hero__note {
    position: absolute;
    top: 4px;
    right: 0;
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: .34em;
  }

  .page-contact .site-panel {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 52px);
  }

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

  .page-contact .site-facts > div {
    padding: 15px 18px 15px 0;
  }

  .page-contact .site-facts > div:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--ct-hair);
  }
}

@media (min-width: 1000px) {
  .page-contact h1 {
    font-size: clamp(var(--t-44), 5.2vw, var(--t-72));
    line-height: 1.08;
  }

  .page-contact .desk {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(34px, 4vw, 64px);
  }

  .page-contact .desk__rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-contact .urgent {
    margin-left: auto;
    width: min(100%, 470px);
    margin-top: clamp(40px, 5vw, 64px);
  }

  .page-contact .help {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-contact .help__list {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel p,
  .page-contact .help__list a,
  .page-contact .breadcrumb a {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .help__list a:hover {
    transform: none;
  }
}